Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r070-smll-174854076400187.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool gold2024
Input is DES-PT-20a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r070-smll-174854076400187
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 508K
-rw-r--r-- 1 mcc users 6.4K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 68K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.4K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 131K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 74K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 57K May 29 14:32 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1748652228600

Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DES-PT-20a
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2025-05-31 00:43:51] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2025-05-31 00:43:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-31 00:43:51] [INFO ] Load time of PNML (sax parser for PT used): 179 ms
[2025-05-31 00:43:51] [INFO ] Transformed 195 places.
[2025-05-31 00:43:51] [INFO ] Transformed 152 transitions.
[2025-05-31 00:43:51] [INFO ] Found NUPN structural information;
[2025-05-31 00:43:51] [INFO ] Parsed PT model containing 195 places and 152 transitions and 742 arcs in 407 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 195/195 places, 152/152 transitions.
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 0 with 14 rules applied. Total rules applied 14 place count 195 transition count 138
Applied a total of 14 rules in 73 ms. Remains 195 /195 variables (removed 0) and now considering 138/152 (removed 14) transitions.
// Phase 1: matrix 138 rows 195 cols
[2025-05-31 00:43:52] [INFO ] Computed 59 invariants in 52 ms
[2025-05-31 00:43:53] [INFO ] Implicit Places using invariants in 981 ms returned [92]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 1057 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 194/195 places, 138/152 transitions.
Applied a total of 0 rules in 11 ms. Remains 194 /194 variables (removed 0) and now considering 138/138 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1184 ms. Remains : 194/195 places, 138/152 transitions.
Discarding 9 transitions out of 138. Remains 129
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (886 resets) in 4355 ms. (9 steps per ms) remains 64/128 properties
BEST_FIRST walk for 4003 steps (18 resets) in 67 ms. (58 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (17 resets) in 107 ms. (37 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (19 resets) in 83 ms. (47 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (17 resets) in 141 ms. (28 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (17 resets) in 117 ms. (33 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (16 resets) in 113 ms. (35 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (17 resets) in 111 ms. (35 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (18 resets) in 98 ms. (40 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (20 resets) in 96 ms. (41 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (18 resets) in 94 ms. (42 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (16 resets) in 96 ms. (41 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (15 resets) in 42 ms. (93 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (14 resets) in 33 ms. (117 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (16 resets) in 55 ms. (71 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (16 resets) in 36 ms. (108 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (21 resets) in 43 ms. (91 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (20 resets) in 31 ms. (125 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (18 resets) in 31 ms. (125 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (16 resets) in 43 ms. (91 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (15 resets) in 28 ms. (138 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (15 resets) in 27 ms. (143 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (18 resets) in 25 ms. (153 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (21 resets) in 38 ms. (102 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (18 resets) in 23 ms. (166 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4000 steps (13 resets) in 28 ms. (137 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (18 resets) in 24 ms. (160 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (18 resets) in 26 ms. (148 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (18 resets) in 24 ms. (160 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (20 resets) in 59 ms. (66 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (12 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (18 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (13 resets) in 28 ms. (138 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (16 resets) in 36 ms. (108 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (24 resets) in 22 ms. (174 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (23 resets) in 25 ms. (154 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (23 resets) in 27 ms. (143 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4001 steps (23 resets) in 33 ms. (117 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (24 resets) in 25 ms. (153 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (24 resets) in 20 ms. (190 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (24 resets) in 21 ms. (182 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (24 resets) in 18 ms. (210 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (23 resets) in 20 ms. (190 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (22 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (23 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (22 resets) in 37 ms. (105 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4002 steps (23 resets) in 20 ms. (190 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4004 steps (22 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (23 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4003 steps (17 resets) in 19 ms. (200 steps per ms) remains 64/64 properties
BEST_FIRST walk for 4001 steps (20 resets) in 18 ms. (210 steps per ms) remains 64/64 properties
// Phase 1: matrix 138 rows 194 cols
[2025-05-31 00:43:55] [INFO ] Computed 58 invariants in 12 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/69 variables, 69/69 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/69 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 2 (OVERLAPS) 10/79 variables, 6/75 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/79 variables, 10/85 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 5 (OVERLAPS) 64/143 variables, 27/112 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/143 variables, 64/176 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/143 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 8 (OVERLAPS) 38/181 variables, 23/199 constraints. Problems are: Problem set: 0 solved, 64 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/181 variables, 38/237 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/181 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 11 (OVERLAPS) 6/187 variables, 2/239 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/187 variables, 6/245 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/187 variables, 0/245 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 14 (OVERLAPS) 137/324 variables, 187/432 constraints. Problems are: Problem set: 0 solved, 64 unsolved
[2025-05-31 00:43:59] [INFO ] Deduced a trap composed of 15 places in 169 ms of which 36 ms to minimize.
[2025-05-31 00:44:00] [INFO ] Deduced a trap composed of 17 places in 81 ms of which 3 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/324 variables, 2/434 constraints. Problems are: Problem set: 0 solved, 64 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 324/332 variables, and 434 constraints, problems are : Problem set: 0 solved, 64 unsolved in 5020 ms.
Refiners :[Domain max(s): 187/194 constraints, Positive P Invariants (semi-flows): 33/33 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 187/194 constraints, PredecessorRefiner: 64/64 constraints, Known Traps: 2/2 constraints]
Escalating to Integer solving :Problem set: 0 solved, 64 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/69 variables, 69/69 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/69 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 2 (OVERLAPS) 10/79 variables, 6/75 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/79 variables, 10/85 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 5 (OVERLAPS) 64/143 variables, 27/112 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/143 variables, 64/176 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/143 variables, 0/176 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 8 (OVERLAPS) 38/181 variables, 23/199 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/181 variables, 38/237 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/181 variables, 2/239 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/181 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 12 (OVERLAPS) 6/187 variables, 2/241 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/187 variables, 6/247 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/187 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 15 (OVERLAPS) 137/324 variables, 187/434 constraints. Problems are: Problem set: 0 solved, 64 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/324 variables, 18/452 constraints. Problems are: Problem set: 0 solved, 64 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 324/332 variables, and 452 constraints, problems are : Problem set: 0 solved, 64 unsolved in 5031 ms.
Refiners :[Domain max(s): 187/194 constraints, Positive P Invariants (semi-flows): 33/33 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 187/194 constraints, PredecessorRefiner: 18/64 constraints, Known Traps: 2/2 constraints]
After SMT, in 10217ms problems are : Problem set: 0 solved, 64 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 69 out of 194 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 194/194 places, 138/138 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 194 transition count 136
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 193 transition count 135
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 193 transition count 135
Partial Free-agglomeration rule applied 4 times.
Drop transitions (Partial Free agglomeration) removed 4 transitions
Iterating global reduction 1 with 4 rules applied. Total rules applied 8 place count 193 transition count 135
Applied a total of 8 rules in 77 ms. Remains 193 /194 variables (removed 1) and now considering 135/138 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 77 ms. Remains : 193/194 places, 135/138 transitions.
RANDOM walk for 4000000 steps (53783 resets) in 37139 ms. (107 steps per ms) remains 55/64 properties
BEST_FIRST walk for 400003 steps (871 resets) in 1013 ms. (394 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (902 resets) in 1132 ms. (353 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (880 resets) in 823 ms. (485 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (910 resets) in 806 ms. (495 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400002 steps (903 resets) in 816 ms. (489 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (916 resets) in 804 ms. (496 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400002 steps (889 resets) in 820 ms. (487 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (912 resets) in 861 ms. (464 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (893 resets) in 811 ms. (492 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (915 resets) in 818 ms. (488 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (903 resets) in 800 ms. (499 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400002 steps (908 resets) in 802 ms. (498 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (895 resets) in 826 ms. (483 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (924 resets) in 812 ms. (492 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (911 resets) in 822 ms. (486 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (911 resets) in 856 ms. (466 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (689 resets) in 820 ms. (487 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (688 resets) in 923 ms. (432 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (674 resets) in 1192 ms. (335 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (688 resets) in 940 ms. (425 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (683 resets) in 816 ms. (489 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400004 steps (672 resets) in 819 ms. (487 steps per ms) remains 55/55 properties
BEST_FIRST walk for 400003 steps (682 resets) in 815 ms. (490 steps per ms) remains 54/55 properties
BEST_FIRST walk for 400004 steps (689 resets) in 835 ms. (478 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (713 resets) in 1091 ms. (366 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (708 resets) in 947 ms. (421 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (710 resets) in 827 ms. (483 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (722 resets) in 822 ms. (486 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (657 resets) in 811 ms. (492 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (682 resets) in 815 ms. (490 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (2906 resets) in 970 ms. (411 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (2902 resets) in 972 ms. (411 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (2913 resets) in 980 ms. (407 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (2923 resets) in 999 ms. (400 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (2915 resets) in 975 ms. (409 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (2899 resets) in 994 ms. (402 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (2916 resets) in 1009 ms. (396 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (2911 resets) in 1008 ms. (396 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (2913 resets) in 1004 ms. (398 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (2906 resets) in 1006 ms. (397 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (2914 resets) in 969 ms. (412 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (2913 resets) in 961 ms. (415 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400003 steps (2911 resets) in 987 ms. (404 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400002 steps (2896 resets) in 988 ms. (404 steps per ms) remains 54/54 properties
BEST_FIRST walk for 400004 steps (947 resets) in 797 ms. (501 steps per ms) remains 53/54 properties
BEST_FIRST walk for 400003 steps (924 resets) in 794 ms. (503 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400003 steps (956 resets) in 818 ms. (488 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400004 steps (940 resets) in 793 ms. (503 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400002 steps (949 resets) in 1093 ms. (365 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400004 steps (985 resets) in 1023 ms. (390 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400003 steps (969 resets) in 1075 ms. (371 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400004 steps (955 resets) in 846 ms. (472 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400003 steps (968 resets) in 812 ms. (492 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400004 steps (949 resets) in 1190 ms. (335 steps per ms) remains 53/53 properties
BEST_FIRST walk for 400003 steps (977 resets) in 1207 ms. (331 steps per ms) remains 53/53 properties
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:44:30] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 00:44:30] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 1 (OVERLAPS) 10/68 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/68 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 3 (OVERLAPS) 72/140 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/140 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 5 (OVERLAPS) 44/184 variables, 24/60 constraints. Problems are: Problem set: 0 solved, 53 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/184 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 7 (OVERLAPS) 135/319 variables, 184/244 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/319 variables, 2/246 constraints. Problems are: Problem set: 0 solved, 53 unsolved
[2025-05-31 00:44:32] [INFO ] Deduced a trap composed of 12 places in 79 ms of which 3 ms to minimize.
[2025-05-31 00:44:32] [INFO ] Deduced a trap composed of 18 places in 71 ms of which 2 ms to minimize.
[2025-05-31 00:44:33] [INFO ] Deduced a trap composed of 7 places in 45 ms of which 1 ms to minimize.
[2025-05-31 00:44:33] [INFO ] Deduced a trap composed of 18 places in 78 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/319 variables, 4/250 constraints. Problems are: Problem set: 0 solved, 53 unsolved
[2025-05-31 00:44:34] [INFO ] Deduced a trap composed of 12 places in 77 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/319 variables, 1/251 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/319 variables, 0/251 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 12 (OVERLAPS) 9/328 variables, 9/260 constraints. Problems are: Problem set: 0 solved, 53 unsolved
[2025-05-31 00:44:35] [INFO ] Deduced a trap composed of 8 places in 59 ms of which 2 ms to minimize.
[2025-05-31 00:44:35] [INFO ] Deduced a trap composed of 8 places in 81 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/262 constraints. Problems are: Problem set: 0 solved, 53 unsolved
[2025-05-31 00:44:36] [INFO ] Deduced a trap composed of 8 places in 46 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 53 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 263 constraints, problems are : Problem set: 0 solved, 53 unsolved in 8715 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 53/53 constraints, Known Traps: 8/8 constraints]
Escalating to Integer solving :Problem set: 0 solved, 53 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/58 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 1 (OVERLAPS) 10/68 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/68 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 3 (OVERLAPS) 72/140 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/140 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/140 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 6 (OVERLAPS) 44/184 variables, 24/61 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/184 variables, 6/67 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/184 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 9 (OVERLAPS) 135/319 variables, 184/251 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/319 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/319 variables, 15/268 constraints. Problems are: Problem set: 0 solved, 53 unsolved
[2025-05-31 00:44:42] [INFO ] Deduced a trap composed of 24 places in 72 ms of which 3 ms to minimize.
[2025-05-31 00:44:42] [INFO ] Deduced a trap composed of 19 places in 76 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/319 variables, 2/270 constraints. Problems are: Problem set: 0 solved, 53 unsolved
[2025-05-31 00:44:43] [INFO ] Deduced a trap composed of 12 places in 38 ms of which 2 ms to minimize.
[2025-05-31 00:44:44] [INFO ] Deduced a trap composed of 16 places in 84 ms of which 5 ms to minimize.
[2025-05-31 00:44:44] [INFO ] Deduced a trap composed of 17 places in 79 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/319 variables, 3/273 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/319 variables, 0/273 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 15 (OVERLAPS) 9/328 variables, 9/282 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 38/320 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/328 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/328 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 53 unsolved
At refinement iteration 19 (OVERLAPS) 0/328 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 53 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 321 constraints, problems are : Problem set: 0 solved, 53 unsolved in 25410 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 53/53 constraints, Known Traps: 13/13 constraints]
After SMT, in 34240ms problems are : Problem set: 0 solved, 53 unsolved
Parikh walk visited 6 properties in 12456 ms.
Support contains 52 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Applied a total of 0 rules in 17 ms. Remains 193 /193 variables (removed 0) and now considering 135/135 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 193/193 places, 135/135 transitions.
RANDOM walk for 4000000 steps (53886 resets) in 27519 ms. (145 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (875 resets) in 767 ms. (520 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (916 resets) in 771 ms. (518 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (903 resets) in 785 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (901 resets) in 778 ms. (513 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (907 resets) in 791 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (913 resets) in 773 ms. (516 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (905 resets) in 788 ms. (506 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (911 resets) in 774 ms. (516 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (889 resets) in 773 ms. (516 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (883 resets) in 767 ms. (520 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (889 resets) in 771 ms. (518 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (921 resets) in 777 ms. (514 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (905 resets) in 798 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (676 resets) in 808 ms. (494 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (681 resets) in 805 ms. (496 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (714 resets) in 801 ms. (498 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (696 resets) in 785 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (724 resets) in 800 ms. (499 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (688 resets) in 805 ms. (496 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (698 resets) in 787 ms. (507 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (700 resets) in 790 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (706 resets) in 798 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (699 resets) in 799 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (703 resets) in 796 ms. (501 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2906 resets) in 929 ms. (430 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400001 steps (2913 resets) in 926 ms. (431 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (2910 resets) in 935 ms. (427 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2912 resets) in 943 ms. (423 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2906 resets) in 938 ms. (425 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (2902 resets) in 946 ms. (422 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2917 resets) in 960 ms. (416 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2910 resets) in 984 ms. (406 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400001 steps (2918 resets) in 976 ms. (409 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (2930 resets) in 941 ms. (424 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2910 resets) in 945 ms. (422 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2914 resets) in 934 ms. (427 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2914 resets) in 938 ms. (425 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (961 resets) in 786 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (963 resets) in 792 ms. (504 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (942 resets) in 788 ms. (506 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (926 resets) in 786 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (956 resets) in 800 ms. (499 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (963 resets) in 790 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (954 resets) in 810 ms. (493 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (960 resets) in 786 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (967 resets) in 805 ms. (496 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (993 resets) in 815 ms. (490 steps per ms) remains 47/47 properties
Interrupted probabilistic random walk after 8582861 steps, run timeout after 54001 ms. (steps per millisecond=158 ) properties seen :0 out of 47
Probabilistic random walk after 8582861 steps, saw 1092186 distinct states, run finished after 54011 ms. (steps per millisecond=158 ) properties seen :0
[2025-05-31 00:46:29] [INFO ] Invariant cache hit.
[2025-05-31 00:46:29] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 1 (OVERLAPS) 10/62 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/62 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 3 (OVERLAPS) 72/134 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/134 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 5 (OVERLAPS) 49/183 variables, 24/60 constraints. Problems are: Problem set: 0 solved, 47 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 7 (OVERLAPS) 135/318 variables, 183/243 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/318 variables, 2/245 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:31] [INFO ] Deduced a trap composed of 9 places in 63 ms of which 5 ms to minimize.
[2025-05-31 00:46:31] [INFO ] Deduced a trap composed of 11 places in 66 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/318 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:32] [INFO ] Deduced a trap composed of 18 places in 76 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/318 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/318 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 12 (OVERLAPS) 10/328 variables, 10/258 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:33] [INFO ] Deduced a trap composed of 13 places in 68 ms of which 2 ms to minimize.
[2025-05-31 00:46:33] [INFO ] Deduced a trap composed of 9 places in 34 ms of which 1 ms to minimize.
[2025-05-31 00:46:33] [INFO ] Deduced a trap composed of 17 places in 140 ms of which 3 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 3/261 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:34] [INFO ] Deduced a trap composed of 19 places in 63 ms of which 2 ms to minimize.
[2025-05-31 00:46:34] [INFO ] Deduced a trap composed of 8 places in 67 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/263 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:35] [INFO ] Deduced a trap composed of 15 places in 84 ms of which 2 ms to minimize.
[2025-05-31 00:46:35] [INFO ] Deduced a trap composed of 9 places in 24 ms of which 1 ms to minimize.
[2025-05-31 00:46:36] [INFO ] Deduced a trap composed of 17 places in 65 ms of which 2 ms to minimize.
At refinement iteration 16 (OVERLAPS) 0/328 variables, 3/266 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:36] [INFO ] Deduced a trap composed of 16 places in 58 ms of which 2 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/328 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/328 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:37] [INFO ] Deduced a trap composed of 7 places in 66 ms of which 1 ms to minimize.
At refinement iteration 19 (OVERLAPS) 0/328 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/328 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 21 (OVERLAPS) 0/328 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 47 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 268 constraints, problems are : Problem set: 0 solved, 47 unsolved in 10780 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 47/47 constraints, Known Traps: 13/13 constraints]
Escalating to Integer solving :Problem set: 0 solved, 47 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 1 (OVERLAPS) 10/62 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/62 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 3 (OVERLAPS) 72/134 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/134 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/134 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 6 (OVERLAPS) 49/183 variables, 24/61 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/183 variables, 11/72 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/183 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 9 (OVERLAPS) 135/318 variables, 183/255 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/318 variables, 2/257 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/318 variables, 13/270 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/318 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 13 (OVERLAPS) 10/328 variables, 10/280 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 34/314 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 1/315 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 0/315 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:46:53] [INFO ] Deduced a trap composed of 6 places in 32 ms of which 1 ms to minimize.
[2025-05-31 00:46:55] [INFO ] Deduced a trap composed of 13 places in 62 ms of which 2 ms to minimize.
At refinement iteration 17 (OVERLAPS) 0/328 variables, 2/317 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/328 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 19 (OVERLAPS) 0/328 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 47 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 317 constraints, problems are : Problem set: 0 solved, 47 unsolved in 30631 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 47/47 constraints, Known Traps: 15/15 constraints]
After SMT, in 41443ms problems are : Problem set: 0 solved, 47 unsolved
Parikh walk visited 0 properties in 11597 ms.
Support contains 52 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Applied a total of 0 rules in 10 ms. Remains 193 /193 variables (removed 0) and now considering 135/135 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 193/193 places, 135/135 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Applied a total of 0 rules in 9 ms. Remains 193 /193 variables (removed 0) and now considering 135/135 (removed 0) transitions.
[2025-05-31 00:47:22] [INFO ] Invariant cache hit.
[2025-05-31 00:47:22] [INFO ] Implicit Places using invariants in 189 ms returned []
[2025-05-31 00:47:22] [INFO ] Invariant cache hit.
[2025-05-31 00:47:22] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:47:22] [INFO ] Implicit Places using invariants and state equation in 289 ms returned []
Implicit Place search using SMT with State Equation took 483 ms to find 0 implicit places.
[2025-05-31 00:47:22] [INFO ] Redundant transitions in 3 ms returned []
Running 134 sub problems to find dead transitions.
[2025-05-31 00:47:22] [INFO ] Invariant cache hit.
[2025-05-31 00:47:22] [INFO ] State equation strengthened by 2 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/192 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/192 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/193 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 5 (OVERLAPS) 135/328 variables, 193/253 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:25] [INFO ] Deduced a trap composed of 7 places in 46 ms of which 2 ms to minimize.
[2025-05-31 00:47:26] [INFO ] Deduced a trap composed of 19 places in 113 ms of which 2 ms to minimize.
[2025-05-31 00:47:26] [INFO ] Deduced a trap composed of 21 places in 109 ms of which 3 ms to minimize.
[2025-05-31 00:47:26] [INFO ] Deduced a trap composed of 20 places in 92 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/328 variables, 4/259 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:27] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 7 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/328 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:29] [INFO ] Deduced a trap composed of 8 places in 41 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/328 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:30] [INFO ] Deduced a trap composed of 19 places in 66 ms of which 2 ms to minimize.
[2025-05-31 00:47:31] [INFO ] Deduced a trap composed of 18 places in 74 ms of which 2 ms to minimize.
[2025-05-31 00:47:31] [INFO ] Deduced a trap composed of 17 places in 62 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/328 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:35] [INFO ] Deduced a trap composed of 10 places in 123 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/328 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 134 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 265 constraints, problems are : Problem set: 0 solved, 134 unsolved in 18082 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 10/10 constraints]
Escalating to Integer solving :Problem set: 0 solved, 134 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/192 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/192 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/193 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 10/70 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:42] [INFO ] Deduced a trap composed of 11 places in 56 ms of which 2 ms to minimize.
[2025-05-31 00:47:42] [INFO ] Deduced a trap composed of 14 places in 59 ms of which 2 ms to minimize.
[2025-05-31 00:47:42] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 2 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 3/73 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 7 (OVERLAPS) 135/328 variables, 193/266 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/328 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/328 variables, 134/402 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:47:50] [INFO ] Deduced a trap composed of 7 places in 47 ms of which 1 ms to minimize.
[2025-05-31 00:47:50] [INFO ] Deduced a trap composed of 15 places in 80 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/328 variables, 2/404 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:48:03] [INFO ] Deduced a trap composed of 18 places in 95 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 1/405 constraints. Problems are: Problem set: 0 solved, 134 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 328/328 variables, and 405 constraints, problems are : Problem set: 0 solved, 134 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 16/16 constraints]
After SMT, in 48196ms problems are : Problem set: 0 solved, 134 unsolved
Search for dead transitions found 0 dead transitions in 48200ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48707 ms. Remains : 193/193 places, 135/135 transitions.
RANDOM walk for 400000 steps (5374 resets) in 6029 ms. (66 steps per ms) remains 47/52 properties
Running SMT prover for 47 properties.
[2025-05-31 00:48:12] [INFO ] Invariant cache hit.
[2025-05-31 00:48:12] [INFO ] [Real]Absence check using 36 positive place invariants in 16 ms returned sat
[2025-05-31 00:48:12] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 17 ms returned sat
[2025-05-31 00:48:13] [INFO ] After 259ms SMT Verify possible using state equation in real domain returned unsat :0 sat :47
[2025-05-31 00:48:13] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:48:13] [INFO ] After 97ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :47
TRAPS : Iteration 0
[2025-05-31 00:48:14] [INFO ] Deduced a trap composed of 17 places in 83 ms of which 2 ms to minimize.
[2025-05-31 00:48:14] [INFO ] Deduced a trap composed of 13 places in 66 ms of which 2 ms to minimize.
TRAPS : Iteration 1
[2025-05-31 00:48:14] [INFO ] After 1681ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :10 real:37
[2025-05-31 00:48:15] [INFO ] After 2161ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :10 real:37
[2025-05-31 00:48:15] [INFO ] [Nat]Absence check using 36 positive place invariants in 17 ms returned sat
[2025-05-31 00:48:15] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 00:48:15] [INFO ] After 258ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :47
[2025-05-31 00:48:15] [INFO ] After 101ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :47
TRAPS : Iteration 0
[2025-05-31 00:48:16] [INFO ] After 808ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :47
[2025-05-31 00:48:16] [INFO ] After 1320ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :47
RANDOM walk for 4000000 steps (53760 resets) in 29462 ms. (135 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (928 resets) in 798 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (890 resets) in 786 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (920 resets) in 802 ms. (498 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (891 resets) in 800 ms. (499 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (894 resets) in 799 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (923 resets) in 786 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (932 resets) in 789 ms. (506 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (883 resets) in 788 ms. (506 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (914 resets) in 784 ms. (509 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (916 resets) in 786 ms. (508 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (916 resets) in 783 ms. (510 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (910 resets) in 794 ms. (503 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (919 resets) in 791 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (679 resets) in 792 ms. (504 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (689 resets) in 789 ms. (506 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (680 resets) in 796 ms. (501 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (685 resets) in 790 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (702 resets) in 800 ms. (499 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (684 resets) in 790 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (704 resets) in 788 ms. (506 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (699 resets) in 798 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (711 resets) in 794 ms. (503 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (679 resets) in 798 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (689 resets) in 791 ms. (505 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (2902 resets) in 957 ms. (417 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2908 resets) in 941 ms. (424 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2908 resets) in 954 ms. (418 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2917 resets) in 945 ms. (422 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400001 steps (2912 resets) in 959 ms. (416 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2903 resets) in 938 ms. (425 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2904 resets) in 951 ms. (420 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2917 resets) in 939 ms. (425 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (2911 resets) in 945 ms. (422 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2915 resets) in 944 ms. (423 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (2908 resets) in 951 ms. (420 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2910 resets) in 966 ms. (413 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (2909 resets) in 942 ms. (424 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (964 resets) in 806 ms. (495 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (958 resets) in 802 ms. (498 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (963 resets) in 798 ms. (500 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (944 resets) in 797 ms. (501 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (976 resets) in 800 ms. (499 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400002 steps (943 resets) in 809 ms. (493 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (989 resets) in 809 ms. (493 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400003 steps (965 resets) in 813 ms. (491 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (947 resets) in 813 ms. (491 steps per ms) remains 47/47 properties
BEST_FIRST walk for 400004 steps (987 resets) in 795 ms. (502 steps per ms) remains 47/47 properties
Interrupted probabilistic random walk after 8752451 steps, run timeout after 57001 ms. (steps per millisecond=153 ) properties seen :0 out of 47
Probabilistic random walk after 8752451 steps, saw 1116497 distinct states, run finished after 57001 ms. (steps per millisecond=153 ) properties seen :0
[2025-05-31 00:49:32] [INFO ] Invariant cache hit.
[2025-05-31 00:49:32] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 1 (OVERLAPS) 10/62 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/62 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 3 (OVERLAPS) 72/134 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/134 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 5 (OVERLAPS) 49/183 variables, 24/60 constraints. Problems are: Problem set: 0 solved, 47 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 7 (OVERLAPS) 135/318 variables, 183/243 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/318 variables, 2/245 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:49:33] [INFO ] Deduced a trap composed of 9 places in 58 ms of which 2 ms to minimize.
[2025-05-31 00:49:33] [INFO ] Deduced a trap composed of 11 places in 62 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/318 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:49:34] [INFO ] Deduced a trap composed of 18 places in 85 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/318 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/318 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 12 (OVERLAPS) 10/328 variables, 10/258 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:49:35] [INFO ] Deduced a trap composed of 13 places in 101 ms of which 3 ms to minimize.
[2025-05-31 00:49:36] [INFO ] Deduced a trap composed of 9 places in 40 ms of which 2 ms to minimize.
[2025-05-31 00:49:36] [INFO ] Deduced a trap composed of 17 places in 90 ms of which 3 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 3/261 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:49:36] [INFO ] Deduced a trap composed of 19 places in 70 ms of which 3 ms to minimize.
[2025-05-31 00:49:37] [INFO ] Deduced a trap composed of 8 places in 56 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/263 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 47 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 263 constraints, problems are : Problem set: 0 solved, 47 unsolved in 5760 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 47/47 constraints, Known Traps: 8/8 constraints]
Escalating to Integer solving :Problem set: 0 solved, 47 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 1 (OVERLAPS) 10/62 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/62 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 3 (OVERLAPS) 72/134 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:49:38] [INFO ] Deduced a trap composed of 7 places in 27 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/134 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/134 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 6 (OVERLAPS) 49/183 variables, 24/61 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/183 variables, 7/68 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/183 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 9 (OVERLAPS) 135/318 variables, 183/251 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/318 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/318 variables, 13/266 constraints. Problems are: Problem set: 0 solved, 47 unsolved
[2025-05-31 00:49:40] [INFO ] Deduced a trap composed of 12 places in 46 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/318 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/318 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 14 (OVERLAPS) 10/328 variables, 10/277 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 34/311 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 1/312 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/328 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 47 unsolved
At refinement iteration 18 (OVERLAPS) 0/328 variables, 0/312 constraints. Problems are: Problem set: 0 solved, 47 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 312 constraints, problems are : Problem set: 0 solved, 47 unsolved in 24859 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 47/47 constraints, Known Traps: 10/10 constraints]
After SMT, in 30651ms problems are : Problem set: 0 solved, 47 unsolved
Fused 47 Parikh solutions to 46 different solutions.
Parikh walk visited 0 properties in 11135 ms.
Support contains 52 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Applied a total of 0 rules in 9 ms. Remains 193 /193 variables (removed 0) and now considering 135/135 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 193/193 places, 135/135 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Applied a total of 0 rules in 8 ms. Remains 193 /193 variables (removed 0) and now considering 135/135 (removed 0) transitions.
[2025-05-31 00:50:14] [INFO ] Invariant cache hit.
[2025-05-31 00:50:14] [INFO ] Implicit Places using invariants in 238 ms returned []
[2025-05-31 00:50:14] [INFO ] Invariant cache hit.
[2025-05-31 00:50:14] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:50:14] [INFO ] Implicit Places using invariants and state equation in 458 ms returned []
Implicit Place search using SMT with State Equation took 704 ms to find 0 implicit places.
[2025-05-31 00:50:14] [INFO ] Redundant transitions in 5 ms returned []
Running 134 sub problems to find dead transitions.
[2025-05-31 00:50:14] [INFO ] Invariant cache hit.
[2025-05-31 00:50:14] [INFO ] State equation strengthened by 2 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/192 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/192 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/193 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 5 (OVERLAPS) 135/328 variables, 193/253 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:18] [INFO ] Deduced a trap composed of 7 places in 45 ms of which 1 ms to minimize.
[2025-05-31 00:50:18] [INFO ] Deduced a trap composed of 19 places in 116 ms of which 3 ms to minimize.
[2025-05-31 00:50:18] [INFO ] Deduced a trap composed of 21 places in 109 ms of which 2 ms to minimize.
[2025-05-31 00:50:18] [INFO ] Deduced a trap composed of 20 places in 101 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/328 variables, 4/259 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:20] [INFO ] Deduced a trap composed of 12 places in 74 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/328 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:22] [INFO ] Deduced a trap composed of 8 places in 53 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/328 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:23] [INFO ] Deduced a trap composed of 19 places in 63 ms of which 1 ms to minimize.
[2025-05-31 00:50:23] [INFO ] Deduced a trap composed of 18 places in 60 ms of which 2 ms to minimize.
[2025-05-31 00:50:23] [INFO ] Deduced a trap composed of 17 places in 54 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/328 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:26] [INFO ] Deduced a trap composed of 10 places in 101 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/328 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 134 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 265 constraints, problems are : Problem set: 0 solved, 134 unsolved in 17915 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 10/10 constraints]
Escalating to Integer solving :Problem set: 0 solved, 134 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/192 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/192 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 2 (OVERLAPS) 1/193 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/193 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/193 variables, 10/70 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:34] [INFO ] Deduced a trap composed of 11 places in 50 ms of which 2 ms to minimize.
[2025-05-31 00:50:34] [INFO ] Deduced a trap composed of 14 places in 74 ms of which 2 ms to minimize.
[2025-05-31 00:50:34] [INFO ] Deduced a trap composed of 8 places in 44 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/193 variables, 3/73 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/193 variables, 0/73 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 7 (OVERLAPS) 135/328 variables, 193/266 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/328 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 134 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/328 variables, 134/402 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:43] [INFO ] Deduced a trap composed of 7 places in 39 ms of which 1 ms to minimize.
[2025-05-31 00:50:43] [INFO ] Deduced a trap composed of 15 places in 66 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/328 variables, 2/404 constraints. Problems are: Problem set: 0 solved, 134 unsolved
[2025-05-31 00:50:55] [INFO ] Deduced a trap composed of 18 places in 100 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 1/405 constraints. Problems are: Problem set: 0 solved, 134 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 328/328 variables, and 405 constraints, problems are : Problem set: 0 solved, 134 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 134/134 constraints, Known Traps: 16/16 constraints]
After SMT, in 48007ms problems are : Problem set: 0 solved, 134 unsolved
Search for dead transitions found 0 dead transitions in 48011ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48736 ms. Remains : 193/193 places, 135/135 transitions.
RANDOM walk for 400000 steps (5334 resets) in 3466 ms. (115 steps per ms) remains 47/52 properties
Running SMT prover for 47 properties.
[2025-05-31 00:51:03] [INFO ] Invariant cache hit.
[2025-05-31 00:51:04] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 00:51:04] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 00:51:04] [INFO ] After 177ms SMT Verify possible using state equation in real domain returned unsat :0 sat :47
[2025-05-31 00:51:04] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:51:04] [INFO ] After 76ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :47
TRAPS : Iteration 0
[2025-05-31 00:51:04] [INFO ] Deduced a trap composed of 17 places in 88 ms of which 2 ms to minimize.
[2025-05-31 00:51:04] [INFO ] Deduced a trap composed of 13 places in 57 ms of which 1 ms to minimize.
TRAPS : Iteration 1
[2025-05-31 00:51:05] [INFO ] After 1610ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :10 real:37
[2025-05-31 00:51:05] [INFO ] After 1934ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :10 real:37
[2025-05-31 00:51:05] [INFO ] [Nat]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 00:51:06] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 00:51:06] [INFO ] After 287ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :47
[2025-05-31 00:51:06] [INFO ] After 119ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :47
TRAPS : Iteration 0
[2025-05-31 00:51:07] [INFO ] After 1177ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :47
[2025-05-31 00:51:07] [INFO ] After 1778ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :47
RANDOM walk for 40000 steps (532 resets) in 230 ms. (173 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (90 resets) in 190 ms. (209 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1287921 steps, run timeout after 3001 ms. (steps per millisecond=429 ) properties seen :0 out of 1
Probabilistic random walk after 1287921 steps, saw 179334 distinct states, run finished after 3001 ms. (steps per millisecond=429 ) properties seen :0
[2025-05-31 00:51:10] [INFO ] Invariant cache hit.
[2025-05-31 00:51:10] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 216 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 440ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 995 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=331 )
Parikh walk visited 1 properties in 9 ms.
RANDOM walk for 590 steps (3 resets) in 7 ms. (73 steps per ms) remains 0/1 properties
RANDOM walk for 386 steps (5 resets) in 5 ms. (64 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (533 resets) in 410 ms. (97 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 114 ms. (347 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1373977 steps, run timeout after 3001 ms. (steps per millisecond=457 ) properties seen :0 out of 1
Probabilistic random walk after 1373977 steps, saw 192066 distinct states, run finished after 3001 ms. (steps per millisecond=457 ) properties seen :0
[2025-05-31 00:51:14] [INFO ] Invariant cache hit.
[2025-05-31 00:51:14] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 242 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:14] [INFO ] Deduced a trap composed of 7 places in 35 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:15] [INFO ] Deduced a trap composed of 17 places in 58 ms of which 1 ms to minimize.
[2025-05-31 00:51:15] [INFO ] Deduced a trap composed of 17 places in 63 ms of which 2 ms to minimize.
[2025-05-31 00:51:15] [INFO ] Deduced a trap composed of 19 places in 46 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 3/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 517 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 764ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 395 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 50 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (564 resets) in 241 ms. (165 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (91 resets) in 112 ms. (354 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1196318 steps, run timeout after 3001 ms. (steps per millisecond=398 ) properties seen :0 out of 1
Probabilistic random walk after 1196318 steps, saw 167438 distinct states, run finished after 3001 ms. (steps per millisecond=398 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:51:18] [INFO ] Computed 60 invariants in 5 ms
[2025-05-31 00:51:18] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 329 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 1/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 0/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/284 variables, 8/227 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 3/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:19] [INFO ] Deduced a trap composed of 17 places in 79 ms of which 2 ms to minimize.
[2025-05-31 00:51:19] [INFO ] Deduced a trap composed of 16 places in 57 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 2/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:19] [INFO ] Deduced a trap composed of 17 places in 58 ms of which 2 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/285 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 22/307 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/307 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 19/326 variables, 19/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 564 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 908ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1066 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=266 )
Parikh walk visited 1 properties in 4 ms.
RANDOM walk for 40000 steps (543 resets) in 225 ms. (176 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (85 resets) in 101 ms. (392 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1261254 steps, run timeout after 3001 ms. (steps per millisecond=420 ) properties seen :0 out of 1
Probabilistic random walk after 1261254 steps, saw 176205 distinct states, run finished after 3001 ms. (steps per millisecond=420 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:51:22] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 00:51:22] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 257 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:23] [INFO ] Deduced a trap composed of 7 places in 45 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:23] [INFO ] Deduced a trap composed of 19 places in 49 ms of which 2 ms to minimize.
[2025-05-31 00:51:23] [INFO ] Deduced a trap composed of 17 places in 46 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 2/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 490 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 756ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 369 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 45 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (535 resets) in 161 ms. (246 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 98 ms. (404 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1190319 steps, run timeout after 3001 ms. (steps per millisecond=396 ) properties seen :0 out of 1
Probabilistic random walk after 1190319 steps, saw 166609 distinct states, run finished after 3001 ms. (steps per millisecond=396 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:51:27] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:51:27] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 267 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 1/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 0/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/284 variables, 8/227 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 3/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:27] [INFO ] Deduced a trap composed of 15 places in 92 ms of which 2 ms to minimize.
[2025-05-31 00:51:27] [INFO ] Deduced a trap composed of 18 places in 107 ms of which 3 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 2/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:51:27] [INFO ] Deduced a trap composed of 23 places in 73 ms of which 2 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/285 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 22/307 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/307 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 19/326 variables, 19/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 623 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 898ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 367 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 16 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 17 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:51:28] [INFO ] Invariant cache hit.
[2025-05-31 00:51:28] [INFO ] Implicit Places using invariants in 328 ms returned []
[2025-05-31 00:51:28] [INFO ] Invariant cache hit.
[2025-05-31 00:51:28] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:51:29] [INFO ] Implicit Places using invariants and state equation in 393 ms returned []
Implicit Place search using SMT with State Equation took 722 ms to find 0 implicit places.
[2025-05-31 00:51:29] [INFO ] Redundant transitions in 6 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:51:29] [INFO ] Invariant cache hit.
[2025-05-31 00:51:29] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:51:33] [INFO ] Deduced a trap composed of 6 places in 28 ms of which 0 ms to minimize.
[2025-05-31 00:51:33] [INFO ] Deduced a trap composed of 8 places in 51 ms of which 2 ms to minimize.
[2025-05-31 00:51:34] [INFO ] Deduced a trap composed of 12 places in 80 ms of which 2 ms to minimize.
[2025-05-31 00:51:34] [INFO ] Deduced a trap composed of 7 places in 122 ms of which 2 ms to minimize.
[2025-05-31 00:51:34] [INFO ] Deduced a trap composed of 11 places in 84 ms of which 2 ms to minimize.
[2025-05-31 00:51:34] [INFO ] Deduced a trap composed of 7 places in 77 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:51:36] [INFO ] Deduced a trap composed of 6 places in 72 ms of which 2 ms to minimize.
[2025-05-31 00:51:36] [INFO ] Deduced a trap composed of 8 places in 87 ms of which 2 ms to minimize.
[2025-05-31 00:51:36] [INFO ] Deduced a trap composed of 10 places in 99 ms of which 3 ms to minimize.
[2025-05-31 00:51:36] [INFO ] Deduced a trap composed of 17 places in 113 ms of which 3 ms to minimize.
[2025-05-31 00:51:36] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:51:39] [INFO ] Deduced a trap composed of 17 places in 103 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 15032 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:52:12] [INFO ] Deduced a trap composed of 7 places in 47 ms of which 1 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30012 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 45115ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 45118ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45882 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 22 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:52:14] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 00:52:14] [INFO ] [Real]Absence check using 36 positive place invariants in 12 ms returned sat
[2025-05-31 00:52:14] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 00:52:14] [INFO ] After 135ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:52:14] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 1 ms to minimize.
TRAPS : Iteration 1
[2025-05-31 00:52:14] [INFO ] After 223ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:52:14] [INFO ] After 340ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:52:14] [INFO ] [Nat]Absence check using 36 positive place invariants in 16 ms returned sat
[2025-05-31 00:52:14] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 26 ms returned sat
[2025-05-31 00:52:14] [INFO ] After 145ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:52:14] [INFO ] After 167ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:52:14] [INFO ] After 308ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 683 ms.
RANDOM walk for 40000 steps (521 resets) in 226 ms. (176 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (87 resets) in 97 ms. (408 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1236058 steps, run timeout after 3001 ms. (steps per millisecond=411 ) properties seen :0 out of 1
Probabilistic random walk after 1236058 steps, saw 172947 distinct states, run finished after 3001 ms. (steps per millisecond=411 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:52:17] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:52:17] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 178 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:18] [INFO ] Deduced a trap composed of 21 places in 55 ms of which 2 ms to minimize.
[2025-05-31 00:52:18] [INFO ] Deduced a trap composed of 21 places in 99 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 2/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 423 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 610ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 991 steps, including 1 resets, run visited all 1 properties in 5 ms. (steps per millisecond=198 )
Parikh walk visited 1 properties in 5 ms.
RANDOM walk for 40000 steps (532 resets) in 243 ms. (163 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (95 resets) in 99 ms. (400 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1222076 steps, run timeout after 3001 ms. (steps per millisecond=407 ) properties seen :0 out of 1
Probabilistic random walk after 1222076 steps, saw 171102 distinct states, run finished after 3001 ms. (steps per millisecond=407 ) properties seen :0
[2025-05-31 00:52:21] [INFO ] Invariant cache hit.
[2025-05-31 00:52:21] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:21] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 294 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:22] [INFO ] Deduced a trap composed of 16 places in 51 ms of which 2 ms to minimize.
[2025-05-31 00:52:22] [INFO ] Deduced a trap composed of 19 places in 50 ms of which 1 ms to minimize.
[2025-05-31 00:52:22] [INFO ] Deduced a trap composed of 18 places in 50 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 3/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 454 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 754ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 69944 steps, including 364 resets, run visited all 1 properties in 213 ms. (steps per millisecond=328 )
Parikh walk visited 1 properties in 212 ms.
RANDOM walk for 40000 steps (551 resets) in 152 ms. (261 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (95 resets) in 97 ms. (408 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1282385 steps, run timeout after 3001 ms. (steps per millisecond=427 ) properties seen :0 out of 1
Probabilistic random walk after 1282385 steps, saw 178663 distinct states, run finished after 3001 ms. (steps per millisecond=427 ) properties seen :0
[2025-05-31 00:52:25] [INFO ] Invariant cache hit.
[2025-05-31 00:52:25] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 245 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:26] [INFO ] Deduced a trap composed of 8 places in 56 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:26] [INFO ] Deduced a trap composed of 16 places in 66 ms of which 2 ms to minimize.
[2025-05-31 00:52:26] [INFO ] Deduced a trap composed of 19 places in 79 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 2/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 534 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 786ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 61118 steps, including 304 resets, run visited all 1 properties in 247 ms. (steps per millisecond=247 )
Parikh walk visited 1 properties in 246 ms.
RANDOM walk for 40000 steps (527 resets) in 287 ms. (138 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 99 ms. (400 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1262156 steps, run timeout after 3001 ms. (steps per millisecond=420 ) properties seen :0 out of 1
Probabilistic random walk after 1262156 steps, saw 176310 distinct states, run finished after 3001 ms. (steps per millisecond=420 ) properties seen :0
[2025-05-31 00:52:29] [INFO ] Invariant cache hit.
[2025-05-31 00:52:29] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 264 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:30] [INFO ] Deduced a trap composed of 17 places in 58 ms of which 2 ms to minimize.
[2025-05-31 00:52:30] [INFO ] Deduced a trap composed of 19 places in 58 ms of which 2 ms to minimize.
[2025-05-31 00:52:30] [INFO ] Deduced a trap composed of 18 places in 54 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 487 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 760ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 15388 steps, including 50 resets, run visited all 1 properties in 63 ms. (steps per millisecond=244 )
Parikh walk visited 1 properties in 63 ms.
RANDOM walk for 40000 steps (541 resets) in 155 ms. (256 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1249297 steps, run timeout after 3001 ms. (steps per millisecond=416 ) properties seen :0 out of 1
Probabilistic random walk after 1249297 steps, saw 174670 distinct states, run finished after 3004 ms. (steps per millisecond=415 ) properties seen :0
[2025-05-31 00:52:33] [INFO ] Invariant cache hit.
[2025-05-31 00:52:33] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:34] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 2 ms to minimize.
[2025-05-31 00:52:34] [INFO ] Deduced a trap composed of 19 places in 58 ms of which 2 ms to minimize.
[2025-05-31 00:52:34] [INFO ] Deduced a trap composed of 18 places in 59 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 431 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 641ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 264 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 30 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (543 resets) in 158 ms. (251 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (90 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1244503 steps, run timeout after 3001 ms. (steps per millisecond=414 ) properties seen :0 out of 1
Probabilistic random walk after 1244503 steps, saw 173985 distinct states, run finished after 3001 ms. (steps per millisecond=414 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:52:37] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:52:37] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 288 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:38] [INFO ] Deduced a trap composed of 9 places in 50 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/129 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/154 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/154 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/161 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:38] [INFO ] Deduced a trap composed of 12 places in 65 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 1/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/272 variables, 0/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 12/284 variables, 8/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 3/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/284 variables, 0/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/285 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 22/307 variables, 3/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/307 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 19/326 variables, 19/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/326 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/326 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 365 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 662ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 25622 steps, including 85 resets, run visited all 1 properties in 103 ms. (steps per millisecond=248 )
Parikh walk visited 1 properties in 102 ms.
RANDOM walk for 40000 steps (530 resets) in 134 ms. (296 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (86 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1279890 steps, run timeout after 3001 ms. (steps per millisecond=426 ) properties seen :0 out of 1
Probabilistic random walk after 1279890 steps, saw 178401 distinct states, run finished after 3001 ms. (steps per millisecond=426 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:52:41] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 00:52:41] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:42] [INFO ] Deduced a trap composed of 17 places in 63 ms of which 2 ms to minimize.
[2025-05-31 00:52:42] [INFO ] Deduced a trap composed of 18 places in 66 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 2/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 445 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 663ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 240 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 30 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 32 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (553 resets) in 124 ms. (320 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1221899 steps, run timeout after 3001 ms. (steps per millisecond=407 ) properties seen :0 out of 1
Probabilistic random walk after 1221899 steps, saw 171083 distinct states, run finished after 3001 ms. (steps per millisecond=407 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:52:45] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:52:45] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 207 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 1/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 0/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/284 variables, 8/227 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 3/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 0/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 0/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 22/307 variables, 3/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 19/326 variables, 19/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 250 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 465ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 654 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=163 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (528 resets) in 189 ms. (210 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (93 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1375020 steps, run timeout after 3001 ms. (steps per millisecond=458 ) properties seen :0 out of 1
Probabilistic random walk after 1375020 steps, saw 192208 distinct states, run finished after 3001 ms. (steps per millisecond=458 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:52:49] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:52:49] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:49] [INFO ] Deduced a trap composed of 17 places in 59 ms of which 2 ms to minimize.
[2025-05-31 00:52:49] [INFO ] Deduced a trap composed of 17 places in 73 ms of which 2 ms to minimize.
[2025-05-31 00:52:49] [INFO ] Deduced a trap composed of 18 places in 45 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 486 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 3/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:50] [INFO ] Deduced a trap composed of 7 places in 61 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 341 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 836ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 215 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 28 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (553 resets) in 167 ms. (238 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (77 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1235684 steps, run timeout after 3001 ms. (steps per millisecond=411 ) properties seen :0 out of 1
Probabilistic random walk after 1235684 steps, saw 172894 distinct states, run finished after 3001 ms. (steps per millisecond=411 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:52:53] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:52:53] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 311 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 1/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:53] [INFO ] Deduced a trap composed of 11 places in 45 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 393 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 714ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 655 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=218 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (541 resets) in 161 ms. (246 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1234222 steps, run timeout after 3001 ms. (steps per millisecond=411 ) properties seen :0 out of 1
Probabilistic random walk after 1234222 steps, saw 172695 distinct states, run finished after 3001 ms. (steps per millisecond=411 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:52:57] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:52:57] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 222 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:52:57] [INFO ] Deduced a trap composed of 16 places in 82 ms of which 2 ms to minimize.
[2025-05-31 00:52:57] [INFO ] Deduced a trap composed of 9 places in 87 ms of which 1 ms to minimize.
[2025-05-31 00:52:57] [INFO ] Deduced a trap composed of 18 places in 84 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 527 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 759ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 594 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=148 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (543 resets) in 148 ms. (268 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (87 resets) in 81 ms. (487 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1204841 steps, run timeout after 3001 ms. (steps per millisecond=401 ) properties seen :0 out of 1
Probabilistic random walk after 1204841 steps, saw 168733 distinct states, run finished after 3001 ms. (steps per millisecond=401 ) properties seen :0
[2025-05-31 00:53:00] [INFO ] Invariant cache hit.
[2025-05-31 00:53:00] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 171 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:01] [INFO ] Deduced a trap composed of 17 places in 53 ms of which 1 ms to minimize.
[2025-05-31 00:53:01] [INFO ] Deduced a trap composed of 19 places in 56 ms of which 2 ms to minimize.
[2025-05-31 00:53:01] [INFO ] Deduced a trap composed of 18 places in 62 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 404 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 582ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 28419 steps, including 104 resets, run visited all 1 properties in 114 ms. (steps per millisecond=249 )
Parikh walk visited 1 properties in 114 ms.
RANDOM walk for 40000 steps (550 resets) in 164 ms. (242 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (90 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1253386 steps, run timeout after 3001 ms. (steps per millisecond=417 ) properties seen :0 out of 1
Probabilistic random walk after 1253386 steps, saw 175229 distinct states, run finished after 3001 ms. (steps per millisecond=417 ) properties seen :0
[2025-05-31 00:53:04] [INFO ] Invariant cache hit.
[2025-05-31 00:53:04] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 172 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:05] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 1 ms to minimize.
[2025-05-31 00:53:05] [INFO ] Deduced a trap composed of 19 places in 59 ms of which 1 ms to minimize.
[2025-05-31 00:53:05] [INFO ] Deduced a trap composed of 18 places in 59 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 499 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 677ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 6884 steps, including 23 resets, run visited all 1 properties in 28 ms. (steps per millisecond=245 )
Parikh walk visited 1 properties in 28 ms.
RANDOM walk for 40000 steps (530 resets) in 156 ms. (254 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (94 resets) in 74 ms. (533 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1311246 steps, run timeout after 3001 ms. (steps per millisecond=436 ) properties seen :0 out of 1
Probabilistic random walk after 1311246 steps, saw 182751 distinct states, run finished after 3001 ms. (steps per millisecond=436 ) properties seen :0
[2025-05-31 00:53:08] [INFO ] Invariant cache hit.
[2025-05-31 00:53:08] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 259 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 279 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 560ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 974 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=243 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 4 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (535 resets) in 164 ms. (242 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (94 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1248016 steps, run timeout after 3001 ms. (steps per millisecond=415 ) properties seen :0 out of 1
Probabilistic random walk after 1248016 steps, saw 174481 distinct states, run finished after 3004 ms. (steps per millisecond=415 ) properties seen :0
[2025-05-31 00:53:12] [INFO ] Invariant cache hit.
[2025-05-31 00:53:12] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 246 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:12] [INFO ] Deduced a trap composed of 17 places in 74 ms of which 2 ms to minimize.
[2025-05-31 00:53:12] [INFO ] Deduced a trap composed of 17 places in 76 ms of which 2 ms to minimize.
[2025-05-31 00:53:12] [INFO ] Deduced a trap composed of 18 places in 67 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 539 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 796ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 346 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 28 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (549 resets) in 225 ms. (176 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (91 resets) in 75 ms. (526 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1126371 steps, run timeout after 3001 ms. (steps per millisecond=375 ) properties seen :0 out of 1
Probabilistic random walk after 1126371 steps, saw 157599 distinct states, run finished after 3001 ms. (steps per millisecond=375 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:53:16] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:53:16] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 224 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:16] [INFO ] Deduced a trap composed of 11 places in 28 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/129 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/154 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/154 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/161 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:16] [INFO ] Deduced a trap composed of 17 places in 51 ms of which 2 ms to minimize.
[2025-05-31 00:53:16] [INFO ] Deduced a trap composed of 16 places in 41 ms of which 3 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 2/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:17] [INFO ] Deduced a trap composed of 18 places in 37 ms of which 2 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/285 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/285 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 22/307 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/307 variables, 1/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/307 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 19/326 variables, 19/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/326 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/326 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 410 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 644ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 35227 steps, including 115 resets, run visited all 1 properties in 81 ms. (steps per millisecond=434 )
Parikh walk visited 1 properties in 82 ms.
RANDOM walk for 40000 steps (542 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (96 resets) in 63 ms. (625 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 976935 steps, run timeout after 3001 ms. (steps per millisecond=325 ) properties seen :0 out of 1
Probabilistic random walk after 976935 steps, saw 138507 distinct states, run finished after 3001 ms. (steps per millisecond=325 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:53:20] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 00:53:20] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 278 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:20] [INFO ] Deduced a trap composed of 15 places in 70 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:20] [INFO ] Deduced a trap composed of 17 places in 56 ms of which 2 ms to minimize.
[2025-05-31 00:53:20] [INFO ] Deduced a trap composed of 17 places in 68 ms of which 2 ms to minimize.
[2025-05-31 00:53:20] [INFO ] Deduced a trap composed of 19 places in 46 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 3/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 490 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 778ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 20963 steps, including 67 resets, run visited all 1 properties in 86 ms. (steps per millisecond=243 )
Parikh walk visited 1 properties in 85 ms.
RANDOM walk for 40000 steps (536 resets) in 129 ms. (307 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (97 resets) in 64 ms. (615 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1108097 steps, run timeout after 3001 ms. (steps per millisecond=369 ) properties seen :0 out of 1
Probabilistic random walk after 1108097 steps, saw 155009 distinct states, run finished after 3001 ms. (steps per millisecond=369 ) properties seen :0
[2025-05-31 00:53:24] [INFO ] Invariant cache hit.
[2025-05-31 00:53:24] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 232 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:24] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 2 ms to minimize.
[2025-05-31 00:53:24] [INFO ] Deduced a trap composed of 19 places in 57 ms of which 2 ms to minimize.
[2025-05-31 00:53:24] [INFO ] Deduced a trap composed of 18 places in 57 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 479 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 719ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 11842 steps, including 37 resets, run visited all 1 properties in 45 ms. (steps per millisecond=263 )
Parikh walk visited 1 properties in 44 ms.
RANDOM walk for 40000 steps (529 resets) in 161 ms. (246 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (93 resets) in 62 ms. (634 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1270072 steps, run timeout after 3001 ms. (steps per millisecond=423 ) properties seen :0 out of 1
Probabilistic random walk after 1270072 steps, saw 177294 distinct states, run finished after 3001 ms. (steps per millisecond=423 ) properties seen :0
[2025-05-31 00:53:27] [INFO ] Invariant cache hit.
[2025-05-31 00:53:27] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 258 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:28] [INFO ] Deduced a trap composed of 17 places in 59 ms of which 2 ms to minimize.
[2025-05-31 00:53:28] [INFO ] Deduced a trap composed of 19 places in 58 ms of which 2 ms to minimize.
[2025-05-31 00:53:28] [INFO ] Deduced a trap composed of 18 places in 55 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 486 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 752ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 28184 steps, including 91 resets, run visited all 1 properties in 113 ms. (steps per millisecond=249 )
Parikh walk visited 1 properties in 113 ms.
RANDOM walk for 40000 steps (539 resets) in 169 ms. (235 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (87 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1165284 steps, run timeout after 3001 ms. (steps per millisecond=388 ) properties seen :0 out of 1
Probabilistic random walk after 1165284 steps, saw 163380 distinct states, run finished after 3001 ms. (steps per millisecond=388 ) properties seen :0
[2025-05-31 00:53:31] [INFO ] Invariant cache hit.
[2025-05-31 00:53:31] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:32] [INFO ] Deduced a trap composed of 22 places in 91 ms of which 2 ms to minimize.
[2025-05-31 00:53:32] [INFO ] Deduced a trap composed of 20 places in 83 ms of which 2 ms to minimize.
[2025-05-31 00:53:32] [INFO ] Deduced a trap composed of 19 places in 73 ms of which 5 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 572 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 3/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:32] [INFO ] Deduced a trap composed of 17 places in 68 ms of which 2 ms to minimize.
[2025-05-31 00:53:32] [INFO ] Deduced a trap composed of 18 places in 71 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 2/241 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/241 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 261 constraints, problems are : Problem set: 0 solved, 1 unsolved in 457 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
After SMT, in 1038ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 33884 steps, including 109 resets, run visited all 1 properties in 137 ms. (steps per millisecond=247 )
Parikh walk visited 1 properties in 136 ms.
RANDOM walk for 40000 steps (543 resets) in 160 ms. (248 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1169994 steps, run timeout after 3001 ms. (steps per millisecond=389 ) properties seen :0 out of 1
Probabilistic random walk after 1169994 steps, saw 163981 distinct states, run finished after 3001 ms. (steps per millisecond=389 ) properties seen :0
[2025-05-31 00:53:36] [INFO ] Invariant cache hit.
[2025-05-31 00:53:36] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 201 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:36] [INFO ] Deduced a trap composed of 16 places in 88 ms of which 2 ms to minimize.
[2025-05-31 00:53:36] [INFO ] Deduced a trap composed of 19 places in 70 ms of which 1 ms to minimize.
[2025-05-31 00:53:36] [INFO ] Deduced a trap composed of 18 places in 67 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 555 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 765ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1166 steps, including 2 resets, run visited all 1 properties in 6 ms. (steps per millisecond=194 )
Parikh walk visited 1 properties in 5 ms.
RANDOM walk for 40000 steps (535 resets) in 199 ms. (200 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (87 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1079743 steps, run timeout after 3001 ms. (steps per millisecond=359 ) properties seen :0 out of 1
Probabilistic random walk after 1079743 steps, saw 151415 distinct states, run finished after 3001 ms. (steps per millisecond=359 ) properties seen :0
[2025-05-31 00:53:40] [INFO ] Invariant cache hit.
[2025-05-31 00:53:40] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 156 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:40] [INFO ] Deduced a trap composed of 9 places in 58 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 345 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 519ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 236 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 41 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (540 resets) in 236 ms. (168 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (83 resets) in 83 ms. (476 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1213982 steps, run timeout after 3001 ms. (steps per millisecond=404 ) properties seen :0 out of 1
Probabilistic random walk after 1213982 steps, saw 170060 distinct states, run finished after 3005 ms. (steps per millisecond=403 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:53:43] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:53:43] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 322 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:44] [INFO ] Deduced a trap composed of 11 places in 40 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/129 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/154 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/154 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/161 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:44] [INFO ] Deduced a trap composed of 16 places in 78 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 1/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/272 variables, 0/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 12/284 variables, 8/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 3/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:44] [INFO ] Deduced a trap composed of 16 places in 59 ms of which 2 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/284 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:44] [INFO ] Deduced a trap composed of 18 places in 62 ms of which 1 ms to minimize.
At refinement iteration 21 (INCLUDED_ONLY) 0/285 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/285 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 22/307 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/307 variables, 1/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/307 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 19/326 variables, 19/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:53:44] [INFO ] Deduced a trap composed of 5 places in 68 ms of which 1 ms to minimize.
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (OVERLAPS) 0/326 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 746 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
After SMT, in 1085ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 188 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 8 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 8 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:53:45] [INFO ] Invariant cache hit.
[2025-05-31 00:53:45] [INFO ] Implicit Places using invariants in 407 ms returned []
[2025-05-31 00:53:45] [INFO ] Invariant cache hit.
[2025-05-31 00:53:45] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:53:46] [INFO ] Implicit Places using invariants and state equation in 527 ms returned []
Implicit Place search using SMT with State Equation took 955 ms to find 0 implicit places.
[2025-05-31 00:53:46] [INFO ] Redundant transitions in 5 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:53:46] [INFO ] Invariant cache hit.
[2025-05-31 00:53:46] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:53:51] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 1 ms to minimize.
[2025-05-31 00:53:51] [INFO ] Deduced a trap composed of 8 places in 78 ms of which 2 ms to minimize.
[2025-05-31 00:53:52] [INFO ] Deduced a trap composed of 12 places in 90 ms of which 2 ms to minimize.
[2025-05-31 00:53:52] [INFO ] Deduced a trap composed of 7 places in 120 ms of which 3 ms to minimize.
[2025-05-31 00:53:52] [INFO ] Deduced a trap composed of 11 places in 120 ms of which 3 ms to minimize.
[2025-05-31 00:53:52] [INFO ] Deduced a trap composed of 7 places in 118 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:53:54] [INFO ] Deduced a trap composed of 6 places in 74 ms of which 2 ms to minimize.
[2025-05-31 00:53:54] [INFO ] Deduced a trap composed of 8 places in 107 ms of which 2 ms to minimize.
[2025-05-31 00:53:54] [INFO ] Deduced a trap composed of 10 places in 112 ms of which 2 ms to minimize.
[2025-05-31 00:53:55] [INFO ] Deduced a trap composed of 17 places in 114 ms of which 2 ms to minimize.
[2025-05-31 00:53:55] [INFO ] Deduced a trap composed of 16 places in 114 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:53:58] [INFO ] Deduced a trap composed of 17 places in 108 ms of which 3 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 17546 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:54:33] [INFO ] Deduced a trap composed of 7 places in 52 ms of which 2 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 47634ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 47638ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48621 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 21 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:54:33] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:54:33] [INFO ] [Real]Absence check using 36 positive place invariants in 12 ms returned sat
[2025-05-31 00:54:33] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 22 ms returned sat
[2025-05-31 00:54:33] [INFO ] After 119ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:54:34] [INFO ] [Nat]Absence check using 36 positive place invariants in 12 ms returned sat
[2025-05-31 00:54:34] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 00:54:34] [INFO ] After 125ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:54:34] [INFO ] Deduced a trap composed of 12 places in 48 ms of which 1 ms to minimize.
[2025-05-31 00:54:34] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 81 ms
TRAPS : Iteration 1
[2025-05-31 00:54:34] [INFO ] After 241ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:54:34] [INFO ] After 362ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 507 ms.
RANDOM walk for 40000 steps (518 resets) in 203 ms. (196 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 69 ms. (571 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1304247 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1304247 steps, saw 181474 distinct states, run finished after 3001 ms. (steps per millisecond=434 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:54:37] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:54:37] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 172 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:37] [INFO ] Deduced a trap composed of 15 places in 73 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 272 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 457ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 642 steps, including 1 resets, run visited all 1 properties in 2 ms. (steps per millisecond=321 )
Parikh walk visited 1 properties in 1 ms.
RANDOM walk for 40000 steps (547 resets) in 139 ms. (285 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (94 resets) in 77 ms. (512 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1283911 steps, run timeout after 3001 ms. (steps per millisecond=427 ) properties seen :0 out of 1
Probabilistic random walk after 1283911 steps, saw 178826 distinct states, run finished after 3001 ms. (steps per millisecond=427 ) properties seen :0
[2025-05-31 00:54:40] [INFO ] Invariant cache hit.
[2025-05-31 00:54:40] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:41] [INFO ] Deduced a trap composed of 18 places in 57 ms of which 1 ms to minimize.
[2025-05-31 00:54:41] [INFO ] Deduced a trap composed of 18 places in 56 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 381 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 2/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:41] [INFO ] Deduced a trap composed of 18 places in 59 ms of which 2 ms to minimize.
[2025-05-31 00:54:41] [INFO ] Deduced a trap composed of 16 places in 44 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 2/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 363 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 748ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 196 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 19 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (556 resets) in 159 ms. (250 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (100 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1311792 steps, run timeout after 3001 ms. (steps per millisecond=437 ) properties seen :0 out of 1
Probabilistic random walk after 1311792 steps, saw 182846 distinct states, run finished after 3001 ms. (steps per millisecond=437 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:54:45] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:54:45] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 267 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:45] [INFO ] Deduced a trap composed of 11 places in 34 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/129 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/154 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/154 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/161 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:45] [INFO ] Deduced a trap composed of 16 places in 58 ms of which 1 ms to minimize.
[2025-05-31 00:54:45] [INFO ] Deduced a trap composed of 16 places in 44 ms of which 1 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 2/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:45] [INFO ] Deduced a trap composed of 18 places in 43 ms of which 1 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/285 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/285 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 22/307 variables, 3/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/307 variables, 1/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/307 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 19/326 variables, 19/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/326 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/326 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 529 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 801ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 893 steps, including 2 resets, run visited all 1 properties in 4 ms. (steps per millisecond=223 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (538 resets) in 154 ms. (258 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (84 resets) in 76 ms. (519 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1303154 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1303154 steps, saw 181039 distinct states, run finished after 3001 ms. (steps per millisecond=434 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:54:48] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:54:48] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/173 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 19 places in 44 ms of which 1 ms to minimize.
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 8 places in 44 ms of which 1 ms to minimize.
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 23 places in 42 ms of which 1 ms to minimize.
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 24 places in 43 ms of which 1 ms to minimize.
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 19 places in 57 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 5/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/240 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 260 constraints, problems are : Problem set: 0 solved, 1 unsolved in 468 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 94/95 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/155 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 15 places in 43 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/173 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 5/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/173 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 135/308 variables, 173/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 2/241 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 1/242 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/242 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:49] [INFO ] Deduced a trap composed of 7 places in 62 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 263 constraints, problems are : Problem set: 0 solved, 1 unsolved in 377 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 7/7 constraints]
After SMT, in 851ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 155 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 18 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (523 resets) in 169 ms. (235 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (85 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1283155 steps, run timeout after 3001 ms. (steps per millisecond=427 ) properties seen :0 out of 1
Probabilistic random walk after 1283155 steps, saw 178749 distinct states, run finished after 3001 ms. (steps per millisecond=427 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:54:52] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:54:52] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/154 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/154 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/161 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 265 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 93/94 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/94 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/129 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:54:53] [INFO ] Deduced a trap composed of 11 places in 22 ms of which 0 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/129 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/129 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/154 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/154 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/161 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 311 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 581ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 534 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=178 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (538 resets) in 133 ms. (298 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 63 ms. (625 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1408557 steps, run timeout after 3001 ms. (steps per millisecond=469 ) properties seen :0 out of 1
Probabilistic random walk after 1408557 steps, saw 196822 distinct states, run finished after 3001 ms. (steps per millisecond=469 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:54:56] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:54:56] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 215 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 241 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 469ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 244 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 13 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (553 resets) in 157 ms. (253 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (100 resets) in 70 ms. (563 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1315633 steps, run timeout after 3001 ms. (steps per millisecond=438 ) properties seen :0 out of 1
Probabilistic random walk after 1315633 steps, saw 183475 distinct states, run finished after 3001 ms. (steps per millisecond=438 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:55:00] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:55:00] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 301 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:55:00] [INFO ] Deduced a trap composed of 12 places in 47 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 422 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 743ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 277 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 6 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:55:01] [INFO ] Invariant cache hit.
[2025-05-31 00:55:01] [INFO ] Implicit Places using invariants in 407 ms returned []
[2025-05-31 00:55:01] [INFO ] Invariant cache hit.
[2025-05-31 00:55:02] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:55:02] [INFO ] Implicit Places using invariants and state equation in 614 ms returned []
Implicit Place search using SMT with State Equation took 1023 ms to find 0 implicit places.
[2025-05-31 00:55:02] [INFO ] Redundant transitions in 3 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:55:02] [INFO ] Invariant cache hit.
[2025-05-31 00:55:02] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:55:06] [INFO ] Deduced a trap composed of 6 places in 26 ms of which 1 ms to minimize.
[2025-05-31 00:55:07] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 2 ms to minimize.
[2025-05-31 00:55:07] [INFO ] Deduced a trap composed of 12 places in 67 ms of which 1 ms to minimize.
[2025-05-31 00:55:07] [INFO ] Deduced a trap composed of 7 places in 65 ms of which 2 ms to minimize.
[2025-05-31 00:55:07] [INFO ] Deduced a trap composed of 11 places in 70 ms of which 1 ms to minimize.
[2025-05-31 00:55:07] [INFO ] Deduced a trap composed of 7 places in 85 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:55:09] [INFO ] Deduced a trap composed of 6 places in 45 ms of which 2 ms to minimize.
[2025-05-31 00:55:09] [INFO ] Deduced a trap composed of 8 places in 71 ms of which 2 ms to minimize.
[2025-05-31 00:55:09] [INFO ] Deduced a trap composed of 10 places in 97 ms of which 3 ms to minimize.
[2025-05-31 00:55:09] [INFO ] Deduced a trap composed of 17 places in 126 ms of which 3 ms to minimize.
[2025-05-31 00:55:09] [INFO ] Deduced a trap composed of 16 places in 95 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:55:12] [INFO ] Deduced a trap composed of 17 places in 93 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 14332 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:55:45] [INFO ] Deduced a trap composed of 7 places in 63 ms of which 2 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 44397ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 44398ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45437 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 10 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:55:46] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 00:55:46] [INFO ] [Real]Absence check using 36 positive place invariants in 14 ms returned sat
[2025-05-31 00:55:46] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 00:55:47] [INFO ] After 116ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:55:47] [INFO ] [Nat]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 00:55:47] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 00:55:47] [INFO ] After 135ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:55:47] [INFO ] After 156ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:55:47] [INFO ] After 275ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 411 ms.
RANDOM walk for 4 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (538 resets) in 215 ms. (185 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (89 resets) in 63 ms. (625 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1321680 steps, run timeout after 3001 ms. (steps per millisecond=440 ) properties seen :0 out of 1
Probabilistic random walk after 1321680 steps, saw 184481 distinct states, run finished after 3002 ms. (steps per millisecond=440 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:55:50] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:55:50] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 183 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 189 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 385ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 155 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 9 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (535 resets) in 188 ms. (211 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 74 ms. (533 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1069496 steps, run timeout after 3001 ms. (steps per millisecond=356 ) properties seen :0 out of 1
Probabilistic random walk after 1069496 steps, saw 150304 distinct states, run finished after 3001 ms. (steps per millisecond=356 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:55:54] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:55:54] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 221 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:55:54] [INFO ] Deduced a trap composed of 12 places in 32 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 281 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 523ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 260 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:55:54] [INFO ] Invariant cache hit.
[2025-05-31 00:55:55] [INFO ] Implicit Places using invariants in 312 ms returned []
[2025-05-31 00:55:55] [INFO ] Invariant cache hit.
[2025-05-31 00:55:55] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:55:55] [INFO ] Implicit Places using invariants and state equation in 477 ms returned []
Implicit Place search using SMT with State Equation took 791 ms to find 0 implicit places.
[2025-05-31 00:55:55] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:55:55] [INFO ] Invariant cache hit.
[2025-05-31 00:55:55] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:56:00] [INFO ] Deduced a trap composed of 6 places in 40 ms of which 1 ms to minimize.
[2025-05-31 00:56:00] [INFO ] Deduced a trap composed of 8 places in 91 ms of which 2 ms to minimize.
[2025-05-31 00:56:01] [INFO ] Deduced a trap composed of 12 places in 89 ms of which 2 ms to minimize.
[2025-05-31 00:56:01] [INFO ] Deduced a trap composed of 7 places in 104 ms of which 3 ms to minimize.
[2025-05-31 00:56:01] [INFO ] Deduced a trap composed of 11 places in 134 ms of which 3 ms to minimize.
[2025-05-31 00:56:01] [INFO ] Deduced a trap composed of 7 places in 99 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:56:03] [INFO ] Deduced a trap composed of 6 places in 76 ms of which 3 ms to minimize.
[2025-05-31 00:56:03] [INFO ] Deduced a trap composed of 8 places in 90 ms of which 2 ms to minimize.
[2025-05-31 00:56:03] [INFO ] Deduced a trap composed of 10 places in 113 ms of which 6 ms to minimize.
[2025-05-31 00:56:03] [INFO ] Deduced a trap composed of 17 places in 133 ms of which 3 ms to minimize.
[2025-05-31 00:56:03] [INFO ] Deduced a trap composed of 16 places in 117 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:56:07] [INFO ] Deduced a trap composed of 17 places in 103 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16865 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:56:40] [INFO ] Deduced a trap composed of 7 places in 36 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 46916ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46919ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47721 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 10 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:56:42] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 00:56:42] [INFO ] [Real]Absence check using 36 positive place invariants in 14 ms returned sat
[2025-05-31 00:56:42] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 25 ms returned sat
[2025-05-31 00:56:42] [INFO ] After 115ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:56:42] [INFO ] [Nat]Absence check using 36 positive place invariants in 16 ms returned sat
[2025-05-31 00:56:42] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 23 ms returned sat
[2025-05-31 00:56:42] [INFO ] After 158ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:56:43] [INFO ] After 181ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:56:43] [INFO ] After 316ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 449 ms.
RANDOM walk for 40000 steps (544 resets) in 135 ms. (294 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (101 resets) in 64 ms. (615 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1346134 steps, run timeout after 3001 ms. (steps per millisecond=448 ) properties seen :0 out of 1
Probabilistic random walk after 1346134 steps, saw 188079 distinct states, run finished after 3001 ms. (steps per millisecond=448 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:56:46] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 00:56:46] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 239 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:56:46] [INFO ] Deduced a trap composed of 8 places in 28 ms of which 0 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/148 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/173 variables, 23/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 294 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 542ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 166 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 11 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (544 resets) in 126 ms. (314 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (94 resets) in 67 ms. (588 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1346568 steps, run timeout after 3001 ms. (steps per millisecond=448 ) properties seen :0 out of 1
Probabilistic random walk after 1346568 steps, saw 188126 distinct states, run finished after 3001 ms. (steps per millisecond=448 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:56:49] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:56:49] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 300 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:56:50] [INFO ] Deduced a trap composed of 12 places in 40 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 351 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 657ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 238 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 6 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:56:50] [INFO ] Invariant cache hit.
[2025-05-31 00:56:51] [INFO ] Implicit Places using invariants in 355 ms returned []
[2025-05-31 00:56:51] [INFO ] Invariant cache hit.
[2025-05-31 00:56:51] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:56:51] [INFO ] Implicit Places using invariants and state equation in 583 ms returned []
Implicit Place search using SMT with State Equation took 940 ms to find 0 implicit places.
[2025-05-31 00:56:51] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:56:51] [INFO ] Invariant cache hit.
[2025-05-31 00:56:51] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:56:57] [INFO ] Deduced a trap composed of 6 places in 39 ms of which 1 ms to minimize.
[2025-05-31 00:56:57] [INFO ] Deduced a trap composed of 8 places in 73 ms of which 2 ms to minimize.
[2025-05-31 00:56:57] [INFO ] Deduced a trap composed of 12 places in 79 ms of which 3 ms to minimize.
[2025-05-31 00:56:58] [INFO ] Deduced a trap composed of 7 places in 105 ms of which 3 ms to minimize.
[2025-05-31 00:56:58] [INFO ] Deduced a trap composed of 11 places in 131 ms of which 3 ms to minimize.
[2025-05-31 00:56:58] [INFO ] Deduced a trap composed of 7 places in 105 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:57:00] [INFO ] Deduced a trap composed of 6 places in 69 ms of which 2 ms to minimize.
[2025-05-31 00:57:00] [INFO ] Deduced a trap composed of 8 places in 88 ms of which 2 ms to minimize.
[2025-05-31 00:57:00] [INFO ] Deduced a trap composed of 10 places in 112 ms of which 2 ms to minimize.
[2025-05-31 00:57:00] [INFO ] Deduced a trap composed of 17 places in 116 ms of which 3 ms to minimize.
[2025-05-31 00:57:00] [INFO ] Deduced a trap composed of 16 places in 107 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:57:04] [INFO ] Deduced a trap composed of 17 places in 99 ms of which 3 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16260 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:57:33] [INFO ] Deduced a trap composed of 7 places in 35 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30010 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 46338ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46340ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47294 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 6 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:57:38] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:57:38] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 00:57:38] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 00:57:38] [INFO ] After 84ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:57:38] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 00:57:38] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 00:57:38] [INFO ] After 97ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:57:38] [INFO ] After 111ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:57:38] [INFO ] After 200ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 296 ms.
RANDOM walk for 40000 steps (536 resets) in 132 ms. (300 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1296681 steps, run timeout after 3001 ms. (steps per millisecond=432 ) properties seen :0 out of 1
Probabilistic random walk after 1296681 steps, saw 180326 distinct states, run finished after 3001 ms. (steps per millisecond=432 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:57:41] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:57:41] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 224 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:57:41] [INFO ] Deduced a trap composed of 9 places in 58 ms of which 2 ms to minimize.
[2025-05-31 00:57:41] [INFO ] Deduced a trap composed of 11 places in 44 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 2/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 330 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 560ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 422 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 14 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (544 resets) in 185 ms. (215 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (89 resets) in 88 ms. (449 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1187501 steps, run timeout after 3001 ms. (steps per millisecond=395 ) properties seen :0 out of 1
Probabilistic random walk after 1187501 steps, saw 166256 distinct states, run finished after 3001 ms. (steps per millisecond=395 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:57:45] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:57:45] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 217 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:57:45] [INFO ] Deduced a trap composed of 12 places in 51 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 378 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 602ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 221 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:57:46] [INFO ] Invariant cache hit.
[2025-05-31 00:57:46] [INFO ] Implicit Places using invariants in 389 ms returned []
[2025-05-31 00:57:46] [INFO ] Invariant cache hit.
[2025-05-31 00:57:46] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:57:47] [INFO ] Implicit Places using invariants and state equation in 612 ms returned []
Implicit Place search using SMT with State Equation took 1004 ms to find 0 implicit places.
[2025-05-31 00:57:47] [INFO ] Redundant transitions in 2 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:57:47] [INFO ] Invariant cache hit.
[2025-05-31 00:57:47] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:57:51] [INFO ] Deduced a trap composed of 6 places in 39 ms of which 2 ms to minimize.
[2025-05-31 00:57:51] [INFO ] Deduced a trap composed of 8 places in 64 ms of which 2 ms to minimize.
[2025-05-31 00:57:52] [INFO ] Deduced a trap composed of 12 places in 55 ms of which 2 ms to minimize.
[2025-05-31 00:57:52] [INFO ] Deduced a trap composed of 7 places in 81 ms of which 2 ms to minimize.
[2025-05-31 00:57:52] [INFO ] Deduced a trap composed of 11 places in 85 ms of which 3 ms to minimize.
[2025-05-31 00:57:52] [INFO ] Deduced a trap composed of 7 places in 74 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:57:54] [INFO ] Deduced a trap composed of 6 places in 67 ms of which 2 ms to minimize.
[2025-05-31 00:57:54] [INFO ] Deduced a trap composed of 8 places in 87 ms of which 3 ms to minimize.
[2025-05-31 00:57:54] [INFO ] Deduced a trap composed of 10 places in 85 ms of which 3 ms to minimize.
[2025-05-31 00:57:54] [INFO ] Deduced a trap composed of 17 places in 99 ms of which 2 ms to minimize.
[2025-05-31 00:57:54] [INFO ] Deduced a trap composed of 16 places in 81 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:57:58] [INFO ] Deduced a trap composed of 17 places in 106 ms of which 6 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 15616 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:58:29] [INFO ] Deduced a trap composed of 7 places in 44 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 45687ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 45689ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46707 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 13 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:58:33] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:58:33] [INFO ] [Real]Absence check using 36 positive place invariants in 15 ms returned sat
[2025-05-31 00:58:33] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 24 ms returned sat
[2025-05-31 00:58:33] [INFO ] After 121ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:58:33] [INFO ] [Nat]Absence check using 36 positive place invariants in 15 ms returned sat
[2025-05-31 00:58:33] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 23 ms returned sat
[2025-05-31 00:58:33] [INFO ] After 156ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:58:33] [INFO ] After 179ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:58:33] [INFO ] After 316ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 460 ms.
RANDOM walk for 40000 steps (534 resets) in 164 ms. (242 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (90 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1169325 steps, run timeout after 3001 ms. (steps per millisecond=389 ) properties seen :0 out of 1
Probabilistic random walk after 1169325 steps, saw 163913 distinct states, run finished after 3001 ms. (steps per millisecond=389 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:58:36] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:58:36] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 157 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:58:36] [INFO ] Deduced a trap composed of 8 places in 38 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/148 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/173 variables, 23/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 268 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 443ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 210 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 14 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (542 resets) in 180 ms. (220 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (83 resets) in 68 ms. (579 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1267298 steps, run timeout after 3001 ms. (steps per millisecond=422 ) properties seen :0 out of 1
Probabilistic random walk after 1267298 steps, saw 176968 distinct states, run finished after 3002 ms. (steps per millisecond=422 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:58:40] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:58:40] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 273 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:58:40] [INFO ] Deduced a trap composed of 10 places in 55 ms of which 1 ms to minimize.
[2025-05-31 00:58:40] [INFO ] Deduced a trap composed of 12 places in 63 ms of which 2 ms to minimize.
[2025-05-31 00:58:40] [INFO ] Deduced a trap composed of 7 places in 59 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 3/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 546 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 824ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 203 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:58:41] [INFO ] Invariant cache hit.
[2025-05-31 00:58:41] [INFO ] Implicit Places using invariants in 360 ms returned []
[2025-05-31 00:58:41] [INFO ] Invariant cache hit.
[2025-05-31 00:58:41] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:58:42] [INFO ] Implicit Places using invariants and state equation in 613 ms returned []
Implicit Place search using SMT with State Equation took 976 ms to find 0 implicit places.
[2025-05-31 00:58:42] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:58:42] [INFO ] Invariant cache hit.
[2025-05-31 00:58:42] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:58:47] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 1 ms to minimize.
[2025-05-31 00:58:47] [INFO ] Deduced a trap composed of 8 places in 90 ms of which 1 ms to minimize.
[2025-05-31 00:58:47] [INFO ] Deduced a trap composed of 12 places in 84 ms of which 2 ms to minimize.
[2025-05-31 00:58:48] [INFO ] Deduced a trap composed of 7 places in 106 ms of which 3 ms to minimize.
[2025-05-31 00:58:48] [INFO ] Deduced a trap composed of 11 places in 105 ms of which 3 ms to minimize.
[2025-05-31 00:58:48] [INFO ] Deduced a trap composed of 7 places in 100 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:58:50] [INFO ] Deduced a trap composed of 6 places in 78 ms of which 2 ms to minimize.
[2025-05-31 00:58:50] [INFO ] Deduced a trap composed of 8 places in 88 ms of which 2 ms to minimize.
[2025-05-31 00:58:50] [INFO ] Deduced a trap composed of 10 places in 117 ms of which 3 ms to minimize.
[2025-05-31 00:58:50] [INFO ] Deduced a trap composed of 17 places in 120 ms of which 2 ms to minimize.
[2025-05-31 00:58:50] [INFO ] Deduced a trap composed of 16 places in 99 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:58:54] [INFO ] Deduced a trap composed of 17 places in 112 ms of which 3 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16115 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:59:24] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30025 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 46207ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46210ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47199 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 7 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:59:28] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:59:28] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 00:59:28] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 00:59:28] [INFO ] After 75ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 00:59:28] [INFO ] [Nat]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 00:59:28] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 13 ms returned sat
[2025-05-31 00:59:28] [INFO ] After 91ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 00:59:28] [INFO ] After 105ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 00:59:28] [INFO ] After 188ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 276 ms.
RANDOM walk for 40000 steps (547 resets) in 115 ms. (344 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (89 resets) in 47 ms. (833 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1228388 steps, run timeout after 3001 ms. (steps per millisecond=409 ) properties seen :0 out of 1
Probabilistic random walk after 1228388 steps, saw 171889 distinct states, run finished after 3004 ms. (steps per millisecond=408 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 00:59:31] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 00:59:31] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 235 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:59:32] [INFO ] Deduced a trap composed of 11 places in 60 ms of which 1 ms to minimize.
[2025-05-31 00:59:32] [INFO ] Deduced a trap composed of 11 places in 69 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 2/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 396 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 661ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 176 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 18 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (558 resets) in 221 ms. (180 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (81 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1337096 steps, run timeout after 3001 ms. (steps per millisecond=445 ) properties seen :0 out of 1
Probabilistic random walk after 1337096 steps, saw 186798 distinct states, run finished after 3001 ms. (steps per millisecond=445 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 00:59:35] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 00:59:35] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 299 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 00:59:36] [INFO ] Deduced a trap composed of 10 places in 62 ms of which 2 ms to minimize.
[2025-05-31 00:59:36] [INFO ] Deduced a trap composed of 12 places in 72 ms of which 2 ms to minimize.
[2025-05-31 00:59:36] [INFO ] Deduced a trap composed of 7 places in 80 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 3/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 571 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 893ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 183 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 00:59:36] [INFO ] Invariant cache hit.
[2025-05-31 00:59:37] [INFO ] Implicit Places using invariants in 339 ms returned []
[2025-05-31 00:59:37] [INFO ] Invariant cache hit.
[2025-05-31 00:59:37] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 00:59:37] [INFO ] Implicit Places using invariants and state equation in 526 ms returned []
Implicit Place search using SMT with State Equation took 868 ms to find 0 implicit places.
[2025-05-31 00:59:37] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 00:59:37] [INFO ] Invariant cache hit.
[2025-05-31 00:59:37] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:59:43] [INFO ] Deduced a trap composed of 6 places in 47 ms of which 1 ms to minimize.
[2025-05-31 00:59:43] [INFO ] Deduced a trap composed of 8 places in 78 ms of which 1 ms to minimize.
[2025-05-31 00:59:43] [INFO ] Deduced a trap composed of 12 places in 74 ms of which 2 ms to minimize.
[2025-05-31 00:59:44] [INFO ] Deduced a trap composed of 7 places in 113 ms of which 2 ms to minimize.
[2025-05-31 00:59:44] [INFO ] Deduced a trap composed of 11 places in 102 ms of which 2 ms to minimize.
[2025-05-31 00:59:44] [INFO ] Deduced a trap composed of 7 places in 86 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:59:45] [INFO ] Deduced a trap composed of 6 places in 68 ms of which 2 ms to minimize.
[2025-05-31 00:59:46] [INFO ] Deduced a trap composed of 8 places in 60 ms of which 1 ms to minimize.
[2025-05-31 00:59:46] [INFO ] Deduced a trap composed of 10 places in 90 ms of which 2 ms to minimize.
[2025-05-31 00:59:46] [INFO ] Deduced a trap composed of 17 places in 89 ms of which 3 ms to minimize.
[2025-05-31 00:59:46] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 00:59:49] [INFO ] Deduced a trap composed of 17 places in 96 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16871 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:00:20] [INFO ] Deduced a trap composed of 7 places in 58 ms of which 1 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30012 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 46941ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46944ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47831 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 6 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:00:24] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:00:24] [INFO ] [Real]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:00:24] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 01:00:24] [INFO ] After 102ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:00:24] [INFO ] [Nat]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:00:24] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 01:00:25] [INFO ] After 164ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:00:25] [INFO ] After 180ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:00:25] [INFO ] After 283ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 400 ms.
RANDOM walk for 40000 steps (539 resets) in 132 ms. (300 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (98 resets) in 55 ms. (714 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1302409 steps, run timeout after 3001 ms. (steps per millisecond=433 ) properties seen :0 out of 1
Probabilistic random walk after 1302409 steps, saw 180964 distinct states, run finished after 3001 ms. (steps per millisecond=433 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:00:28] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 01:00:28] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 209 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:00:28] [INFO ] Deduced a trap composed of 10 places in 47 ms of which 2 ms to minimize.
[2025-05-31 01:00:28] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 2/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:00:28] [INFO ] Deduced a trap composed of 12 places in 64 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/308 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 20/328 variables, 20/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 259 constraints, problems are : Problem set: 0 solved, 1 unsolved in 424 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 661ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 136 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 14 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (542 resets) in 160 ms. (248 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (93 resets) in 60 ms. (655 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1324822 steps, run timeout after 3001 ms. (steps per millisecond=441 ) properties seen :0 out of 1
Probabilistic random walk after 1324822 steps, saw 184957 distinct states, run finished after 3003 ms. (steps per millisecond=441 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:00:32] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:00:32] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 206 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:00:32] [INFO ] Deduced a trap composed of 12 places in 50 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 263 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 500ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 101 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:00:32] [INFO ] Invariant cache hit.
[2025-05-31 01:00:33] [INFO ] Implicit Places using invariants in 257 ms returned []
[2025-05-31 01:00:33] [INFO ] Invariant cache hit.
[2025-05-31 01:00:33] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:00:33] [INFO ] Implicit Places using invariants and state equation in 509 ms returned []
Implicit Place search using SMT with State Equation took 789 ms to find 0 implicit places.
[2025-05-31 01:00:33] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:00:33] [INFO ] Invariant cache hit.
[2025-05-31 01:00:33] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:00:39] [INFO ] Deduced a trap composed of 6 places in 47 ms of which 1 ms to minimize.
[2025-05-31 01:00:39] [INFO ] Deduced a trap composed of 8 places in 80 ms of which 2 ms to minimize.
[2025-05-31 01:00:39] [INFO ] Deduced a trap composed of 12 places in 95 ms of which 3 ms to minimize.
[2025-05-31 01:00:40] [INFO ] Deduced a trap composed of 7 places in 110 ms of which 3 ms to minimize.
[2025-05-31 01:00:40] [INFO ] Deduced a trap composed of 11 places in 137 ms of which 3 ms to minimize.
[2025-05-31 01:00:40] [INFO ] Deduced a trap composed of 7 places in 110 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:00:42] [INFO ] Deduced a trap composed of 6 places in 82 ms of which 1 ms to minimize.
[2025-05-31 01:00:42] [INFO ] Deduced a trap composed of 8 places in 94 ms of which 2 ms to minimize.
[2025-05-31 01:00:42] [INFO ] Deduced a trap composed of 10 places in 111 ms of which 3 ms to minimize.
[2025-05-31 01:00:42] [INFO ] Deduced a trap composed of 17 places in 128 ms of which 3 ms to minimize.
[2025-05-31 01:00:42] [INFO ] Deduced a trap composed of 16 places in 113 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:00:46] [INFO ] Deduced a trap composed of 17 places in 110 ms of which 3 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 17673 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:01:18] [INFO ] Deduced a trap composed of 7 places in 44 ms of which 1 ms to minimize.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 47759ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 47761ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48564 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 7 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:01:21] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:01:21] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:01:21] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 01:01:21] [INFO ] After 110ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:01:21] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:01:21] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 01:01:21] [INFO ] After 112ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:01:21] [INFO ] After 131ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:01:21] [INFO ] After 249ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 371 ms.
RANDOM walk for 40000 steps (533 resets) in 146 ms. (272 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (89 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1235352 steps, run timeout after 3001 ms. (steps per millisecond=411 ) properties seen :0 out of 1
Probabilistic random walk after 1235352 steps, saw 172831 distinct states, run finished after 3001 ms. (steps per millisecond=411 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:01:24] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:01:24] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 159 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:01:25] [INFO ] Deduced a trap composed of 8 places in 50 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/148 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/173 variables, 23/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 248 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 430ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 100 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 7 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (537 resets) in 116 ms. (341 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 72 ms. (548 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1359889 steps, run timeout after 3001 ms. (steps per millisecond=453 ) properties seen :0 out of 1
Probabilistic random walk after 1359889 steps, saw 190184 distinct states, run finished after 3001 ms. (steps per millisecond=453 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:01:28] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:01:28] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 240 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:01:28] [INFO ] Deduced a trap composed of 10 places in 57 ms of which 1 ms to minimize.
[2025-05-31 01:01:28] [INFO ] Deduced a trap composed of 12 places in 54 ms of which 1 ms to minimize.
[2025-05-31 01:01:28] [INFO ] Deduced a trap composed of 7 places in 60 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 3/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 554 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 826ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 147 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:01:29] [INFO ] Invariant cache hit.
[2025-05-31 01:01:29] [INFO ] Implicit Places using invariants in 390 ms returned []
[2025-05-31 01:01:29] [INFO ] Invariant cache hit.
[2025-05-31 01:01:30] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:01:30] [INFO ] Implicit Places using invariants and state equation in 523 ms returned []
Implicit Place search using SMT with State Equation took 932 ms to find 0 implicit places.
[2025-05-31 01:01:30] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:01:30] [INFO ] Invariant cache hit.
[2025-05-31 01:01:30] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:01:35] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 1 ms to minimize.
[2025-05-31 01:01:36] [INFO ] Deduced a trap composed of 8 places in 69 ms of which 1 ms to minimize.
[2025-05-31 01:01:36] [INFO ] Deduced a trap composed of 12 places in 74 ms of which 1 ms to minimize.
[2025-05-31 01:01:36] [INFO ] Deduced a trap composed of 7 places in 106 ms of which 2 ms to minimize.
[2025-05-31 01:01:36] [INFO ] Deduced a trap composed of 11 places in 123 ms of which 3 ms to minimize.
[2025-05-31 01:01:37] [INFO ] Deduced a trap composed of 7 places in 128 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:01:38] [INFO ] Deduced a trap composed of 6 places in 80 ms of which 3 ms to minimize.
[2025-05-31 01:01:38] [INFO ] Deduced a trap composed of 8 places in 104 ms of which 2 ms to minimize.
[2025-05-31 01:01:38] [INFO ] Deduced a trap composed of 10 places in 118 ms of which 3 ms to minimize.
[2025-05-31 01:01:38] [INFO ] Deduced a trap composed of 17 places in 124 ms of which 3 ms to minimize.
[2025-05-31 01:01:38] [INFO ] Deduced a trap composed of 16 places in 106 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:01:42] [INFO ] Deduced a trap composed of 17 places in 103 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 17079 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:02:14] [INFO ] Deduced a trap composed of 7 places in 36 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 47155ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 47158ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48106 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 6 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:02:17] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:02:17] [INFO ] [Real]Absence check using 36 positive place invariants in 17 ms returned sat
[2025-05-31 01:02:17] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 19 ms returned sat
[2025-05-31 01:02:17] [INFO ] After 91ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:02:17] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:02:17] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 01:02:17] [INFO ] After 109ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:02:17] [INFO ] After 124ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:02:17] [INFO ] After 218ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 320 ms.
RANDOM walk for 40000 steps (527 resets) in 102 ms. (388 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (86 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1284704 steps, run timeout after 3001 ms. (steps per millisecond=428 ) properties seen :0 out of 1
Probabilistic random walk after 1284704 steps, saw 178904 distinct states, run finished after 3001 ms. (steps per millisecond=428 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:02:20] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:02:20] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 229 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:02:21] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/148 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/173 variables, 23/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 361 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 599ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 135 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 16 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 17 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (541 resets) in 243 ms. (163 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 86 ms. (459 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1230649 steps, run timeout after 3001 ms. (steps per millisecond=410 ) properties seen :0 out of 1
Probabilistic random walk after 1230649 steps, saw 172190 distinct states, run finished after 3001 ms. (steps per millisecond=410 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:02:24] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:02:24] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 283 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:02:25] [INFO ] Deduced a trap composed of 12 places in 46 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 343 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 631ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 128 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 9 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:02:25] [INFO ] Invariant cache hit.
[2025-05-31 01:02:25] [INFO ] Implicit Places using invariants in 302 ms returned []
[2025-05-31 01:02:25] [INFO ] Invariant cache hit.
[2025-05-31 01:02:26] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:02:26] [INFO ] Implicit Places using invariants and state equation in 582 ms returned []
Implicit Place search using SMT with State Equation took 886 ms to find 0 implicit places.
[2025-05-31 01:02:26] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:02:26] [INFO ] Invariant cache hit.
[2025-05-31 01:02:26] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:02:30] [INFO ] Deduced a trap composed of 6 places in 37 ms of which 1 ms to minimize.
[2025-05-31 01:02:30] [INFO ] Deduced a trap composed of 8 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:02:31] [INFO ] Deduced a trap composed of 12 places in 77 ms of which 2 ms to minimize.
[2025-05-31 01:02:31] [INFO ] Deduced a trap composed of 7 places in 95 ms of which 3 ms to minimize.
[2025-05-31 01:02:31] [INFO ] Deduced a trap composed of 11 places in 103 ms of which 2 ms to minimize.
[2025-05-31 01:02:31] [INFO ] Deduced a trap composed of 7 places in 92 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:02:33] [INFO ] Deduced a trap composed of 6 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:02:33] [INFO ] Deduced a trap composed of 8 places in 82 ms of which 2 ms to minimize.
[2025-05-31 01:02:33] [INFO ] Deduced a trap composed of 10 places in 96 ms of which 2 ms to minimize.
[2025-05-31 01:02:33] [INFO ] Deduced a trap composed of 17 places in 125 ms of which 3 ms to minimize.
[2025-05-31 01:02:33] [INFO ] Deduced a trap composed of 16 places in 104 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:02:37] [INFO ] Deduced a trap composed of 17 places in 96 ms of which 3 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 14531 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:03:07] [INFO ] Deduced a trap composed of 7 places in 34 ms of which 1 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 44593ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 44597ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45504 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 6 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:03:11] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:03:11] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:03:11] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 01:03:11] [INFO ] After 98ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:03:11] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:03:11] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 01:03:11] [INFO ] After 107ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:03:11] [INFO ] Deduced a trap composed of 21 places in 51 ms of which 2 ms to minimize.
[2025-05-31 01:03:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 71 ms
TRAPS : Iteration 1
[2025-05-31 01:03:11] [INFO ] After 204ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:03:11] [INFO ] After 322ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 431 ms.
RANDOM walk for 40000 steps (531 resets) in 149 ms. (266 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (86 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1307964 steps, run timeout after 3001 ms. (steps per millisecond=435 ) properties seen :0 out of 1
Probabilistic random walk after 1307964 steps, saw 182193 distinct states, run finished after 3001 ms. (steps per millisecond=435 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:03:14] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:03:14] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 172 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:03:14] [INFO ] Deduced a trap composed of 8 places in 33 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/148 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/173 variables, 23/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 219 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 399ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 70 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 8 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (528 resets) in 103 ms. (384 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (88 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1280758 steps, run timeout after 3001 ms. (steps per millisecond=426 ) properties seen :0 out of 1
Probabilistic random walk after 1280758 steps, saw 178500 distinct states, run finished after 3001 ms. (steps per millisecond=426 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:03:18] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:03:18] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 226 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:03:18] [INFO ] Deduced a trap composed of 10 places in 43 ms of which 1 ms to minimize.
[2025-05-31 01:03:18] [INFO ] Deduced a trap composed of 12 places in 47 ms of which 1 ms to minimize.
[2025-05-31 01:03:18] [INFO ] Deduced a trap composed of 7 places in 49 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 3/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/58 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/221 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/222 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/239 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 397 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 628ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 103 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:03:18] [INFO ] Invariant cache hit.
[2025-05-31 01:03:19] [INFO ] Implicit Places using invariants in 291 ms returned []
[2025-05-31 01:03:19] [INFO ] Invariant cache hit.
[2025-05-31 01:03:19] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:03:19] [INFO ] Implicit Places using invariants and state equation in 491 ms returned []
Implicit Place search using SMT with State Equation took 784 ms to find 0 implicit places.
[2025-05-31 01:03:19] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:03:19] [INFO ] Invariant cache hit.
[2025-05-31 01:03:19] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:03:23] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 1 ms to minimize.
[2025-05-31 01:03:23] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 2 ms to minimize.
[2025-05-31 01:03:23] [INFO ] Deduced a trap composed of 12 places in 55 ms of which 1 ms to minimize.
[2025-05-31 01:03:24] [INFO ] Deduced a trap composed of 7 places in 72 ms of which 2 ms to minimize.
[2025-05-31 01:03:24] [INFO ] Deduced a trap composed of 11 places in 82 ms of which 2 ms to minimize.
[2025-05-31 01:03:24] [INFO ] Deduced a trap composed of 7 places in 72 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:03:25] [INFO ] Deduced a trap composed of 6 places in 47 ms of which 1 ms to minimize.
[2025-05-31 01:03:25] [INFO ] Deduced a trap composed of 8 places in 59 ms of which 1 ms to minimize.
[2025-05-31 01:03:25] [INFO ] Deduced a trap composed of 10 places in 58 ms of which 1 ms to minimize.
[2025-05-31 01:03:25] [INFO ] Deduced a trap composed of 17 places in 71 ms of which 2 ms to minimize.
[2025-05-31 01:03:25] [INFO ] Deduced a trap composed of 16 places in 58 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:03:27] [INFO ] Deduced a trap composed of 17 places in 70 ms of which 1 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 11546 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:03:54] [INFO ] Deduced a trap composed of 7 places in 40 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30009 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 41614ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 41616ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 42414 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:04:01] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:04:01] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:04:01] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 01:04:01] [INFO ] After 80ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:04:01] [INFO ] [Nat]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:04:01] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 01:04:01] [INFO ] After 103ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:04:01] [INFO ] After 119ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:04:01] [INFO ] After 212ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 302 ms.
RANDOM walk for 40000 steps (548 resets) in 125 ms. (317 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (84 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1263053 steps, run timeout after 3001 ms. (steps per millisecond=420 ) properties seen :0 out of 1
Probabilistic random walk after 1263053 steps, saw 176418 distinct states, run finished after 3001 ms. (steps per millisecond=420 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:04:04] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:04:04] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 168 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:04:04] [INFO ] Deduced a trap composed of 10 places in 38 ms of which 1 ms to minimize.
[2025-05-31 01:04:04] [INFO ] Deduced a trap composed of 12 places in 40 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 2/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/173 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 135/308 variables, 173/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 2/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 1/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/308 variables, 0/238 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 20/328 variables, 20/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 270 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 445ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 60 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 7 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (543 resets) in 104 ms. (380 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (90 resets) in 48 ms. (816 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1387135 steps, run timeout after 3001 ms. (steps per millisecond=462 ) properties seen :0 out of 1
Probabilistic random walk after 1387135 steps, saw 193814 distinct states, run finished after 3001 ms. (steps per millisecond=462 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:04:08] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:04:08] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 203 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:04:08] [INFO ] Deduced a trap composed of 12 places in 31 ms of which 0 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 249 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 457ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 54 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 3 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:04:08] [INFO ] Invariant cache hit.
[2025-05-31 01:04:08] [INFO ] Implicit Places using invariants in 216 ms returned []
[2025-05-31 01:04:08] [INFO ] Invariant cache hit.
[2025-05-31 01:04:09] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:04:09] [INFO ] Implicit Places using invariants and state equation in 350 ms returned []
Implicit Place search using SMT with State Equation took 585 ms to find 0 implicit places.
[2025-05-31 01:04:09] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:04:09] [INFO ] Invariant cache hit.
[2025-05-31 01:04:09] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:04:14] [INFO ] Deduced a trap composed of 6 places in 46 ms of which 1 ms to minimize.
[2025-05-31 01:04:14] [INFO ] Deduced a trap composed of 8 places in 72 ms of which 2 ms to minimize.
[2025-05-31 01:04:14] [INFO ] Deduced a trap composed of 12 places in 82 ms of which 2 ms to minimize.
[2025-05-31 01:04:15] [INFO ] Deduced a trap composed of 7 places in 114 ms of which 3 ms to minimize.
[2025-05-31 01:04:15] [INFO ] Deduced a trap composed of 11 places in 129 ms of which 3 ms to minimize.
[2025-05-31 01:04:15] [INFO ] Deduced a trap composed of 7 places in 102 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:04:17] [INFO ] Deduced a trap composed of 6 places in 67 ms of which 2 ms to minimize.
[2025-05-31 01:04:17] [INFO ] Deduced a trap composed of 8 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:04:17] [INFO ] Deduced a trap composed of 10 places in 100 ms of which 2 ms to minimize.
[2025-05-31 01:04:17] [INFO ] Deduced a trap composed of 17 places in 134 ms of which 3 ms to minimize.
[2025-05-31 01:04:17] [INFO ] Deduced a trap composed of 16 places in 97 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:04:21] [INFO ] Deduced a trap composed of 17 places in 97 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16666 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:04:54] [INFO ] Deduced a trap composed of 7 places in 32 ms of which 1 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 46732ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46733ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47328 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 7 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:04:56] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:04:56] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:04:56] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 22 ms returned sat
[2025-05-31 01:04:56] [INFO ] After 126ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:04:56] [INFO ] [Nat]Absence check using 36 positive place invariants in 15 ms returned sat
[2025-05-31 01:04:56] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 24 ms returned sat
[2025-05-31 01:04:56] [INFO ] After 143ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:04:56] [INFO ] After 165ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:04:56] [INFO ] After 296ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 436 ms.
RANDOM walk for 40000 steps (521 resets) in 185 ms. (215 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (96 resets) in 77 ms. (512 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1063666 steps, run timeout after 3001 ms. (steps per millisecond=354 ) properties seen :0 out of 1
Probabilistic random walk after 1063666 steps, saw 149604 distinct states, run finished after 3001 ms. (steps per millisecond=354 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:04:59] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:04:59] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 222 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 253 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 484ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 77 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 12 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (567 resets) in 190 ms. (209 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (93 resets) in 98 ms. (404 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 946865 steps, run timeout after 3001 ms. (steps per millisecond=315 ) properties seen :0 out of 1
Probabilistic random walk after 946865 steps, saw 134624 distinct states, run finished after 3001 ms. (steps per millisecond=315 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:05:03] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:05:03] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 217 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:05:03] [INFO ] Deduced a trap composed of 12 places in 42 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 321 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 544ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 51 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 3 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:05:03] [INFO ] Invariant cache hit.
[2025-05-31 01:05:04] [INFO ] Implicit Places using invariants in 329 ms returned []
[2025-05-31 01:05:04] [INFO ] Invariant cache hit.
[2025-05-31 01:05:04] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:05:04] [INFO ] Implicit Places using invariants and state equation in 542 ms returned []
Implicit Place search using SMT with State Equation took 877 ms to find 0 implicit places.
[2025-05-31 01:05:04] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:05:04] [INFO ] Invariant cache hit.
[2025-05-31 01:05:04] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:05:10] [INFO ] Deduced a trap composed of 6 places in 45 ms of which 3 ms to minimize.
[2025-05-31 01:05:10] [INFO ] Deduced a trap composed of 8 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:05:10] [INFO ] Deduced a trap composed of 12 places in 68 ms of which 2 ms to minimize.
[2025-05-31 01:05:10] [INFO ] Deduced a trap composed of 7 places in 91 ms of which 3 ms to minimize.
[2025-05-31 01:05:11] [INFO ] Deduced a trap composed of 11 places in 120 ms of which 3 ms to minimize.
[2025-05-31 01:05:11] [INFO ] Deduced a trap composed of 7 places in 103 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:05:12] [INFO ] Deduced a trap composed of 6 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:05:12] [INFO ] Deduced a trap composed of 8 places in 70 ms of which 2 ms to minimize.
[2025-05-31 01:05:13] [INFO ] Deduced a trap composed of 10 places in 90 ms of which 2 ms to minimize.
[2025-05-31 01:05:13] [INFO ] Deduced a trap composed of 17 places in 93 ms of which 2 ms to minimize.
[2025-05-31 01:05:13] [INFO ] Deduced a trap composed of 16 places in 72 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:05:15] [INFO ] Deduced a trap composed of 17 places in 87 ms of which 1 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 14472 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:05:47] [INFO ] Deduced a trap composed of 7 places in 33 ms of which 2 ms to minimize.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30010 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 44535ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 44538ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 45424 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:05:49] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:05:49] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:05:49] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 01:05:49] [INFO ] After 80ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:05:49] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:05:49] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:05:49] [INFO ] After 102ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:05:49] [INFO ] After 117ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:05:49] [INFO ] After 225ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 315 ms.
RANDOM walk for 40000 steps (539 resets) in 120 ms. (330 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (84 resets) in 70 ms. (563 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1317773 steps, run timeout after 3001 ms. (steps per millisecond=439 ) properties seen :0 out of 1
Probabilistic random walk after 1317773 steps, saw 183863 distinct states, run finished after 3001 ms. (steps per millisecond=439 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:05:52] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:05:52] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 20/328 variables, 20/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 169 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 78/79 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/79 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/148 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/148 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/173 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/173 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 135/308 variables, 173/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/308 variables, 2/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/308 variables, 1/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/308 variables, 0/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 20/328 variables, 20/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 193 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 370ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 67 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 9 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (538 resets) in 156 ms. (254 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (89 resets) in 64 ms. (615 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1302502 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1302502 steps, saw 180974 distinct states, run finished after 3001 ms. (steps per millisecond=434 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:05:56] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:05:56] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/161 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/161 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 111/272 variables, 161/216 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/272 variables, 2/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 0/218 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/284 variables, 8/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/284 variables, 3/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/284 variables, 0/229 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/285 variables, 1/230 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/285 variables, 1/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/285 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 22/307 variables, 3/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/307 variables, 1/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/307 variables, 0/235 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 19/326 variables, 19/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 207 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 77/78 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/78 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/118 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/118 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/152 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:05:56] [INFO ] Deduced a trap composed of 12 places in 37 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/152 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/152 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/161 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/161 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 111/272 variables, 161/217 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/272 variables, 2/219 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/272 variables, 1/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/272 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/284 variables, 8/228 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/284 variables, 3/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/284 variables, 0/231 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/285 variables, 1/232 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/285 variables, 1/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/285 variables, 0/233 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 22/307 variables, 3/236 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/307 variables, 1/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/307 variables, 0/237 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 19/326 variables, 19/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/326 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 276 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 514ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 34 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:05:56] [INFO ] Invariant cache hit.
[2025-05-31 01:05:56] [INFO ] Implicit Places using invariants in 208 ms returned []
[2025-05-31 01:05:56] [INFO ] Invariant cache hit.
[2025-05-31 01:05:57] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:05:57] [INFO ] Implicit Places using invariants and state equation in 318 ms returned []
Implicit Place search using SMT with State Equation took 538 ms to find 0 implicit places.
[2025-05-31 01:05:57] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:05:57] [INFO ] Invariant cache hit.
[2025-05-31 01:05:57] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:06:00] [INFO ] Deduced a trap composed of 6 places in 29 ms of which 1 ms to minimize.
[2025-05-31 01:06:00] [INFO ] Deduced a trap composed of 8 places in 55 ms of which 1 ms to minimize.
[2025-05-31 01:06:01] [INFO ] Deduced a trap composed of 12 places in 57 ms of which 1 ms to minimize.
[2025-05-31 01:06:01] [INFO ] Deduced a trap composed of 7 places in 77 ms of which 2 ms to minimize.
[2025-05-31 01:06:01] [INFO ] Deduced a trap composed of 11 places in 92 ms of which 2 ms to minimize.
[2025-05-31 01:06:01] [INFO ] Deduced a trap composed of 7 places in 79 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:06:02] [INFO ] Deduced a trap composed of 6 places in 49 ms of which 1 ms to minimize.
[2025-05-31 01:06:02] [INFO ] Deduced a trap composed of 8 places in 57 ms of which 1 ms to minimize.
[2025-05-31 01:06:02] [INFO ] Deduced a trap composed of 10 places in 61 ms of which 2 ms to minimize.
[2025-05-31 01:06:02] [INFO ] Deduced a trap composed of 17 places in 71 ms of which 2 ms to minimize.
[2025-05-31 01:06:02] [INFO ] Deduced a trap composed of 16 places in 60 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:06:05] [INFO ] Deduced a trap composed of 17 places in 89 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 11146 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:06:32] [INFO ] Deduced a trap composed of 7 places in 31 ms of which 1 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30009 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 41192ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 41195ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 41740 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:06:38] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:06:38] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:06:38] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 16 ms returned sat
[2025-05-31 01:06:38] [INFO ] After 82ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:06:38] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:06:38] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 01:06:38] [INFO ] After 94ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:06:38] [INFO ] After 108ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:06:38] [INFO ] After 194ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 286 ms.
RANDOM walk for 40000 steps (543 resets) in 97 ms. (408 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (82 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1189492 steps, run timeout after 3001 ms. (steps per millisecond=396 ) properties seen :0 out of 1
Probabilistic random walk after 1189492 steps, saw 166493 distinct states, run finished after 3001 ms. (steps per millisecond=396 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:06:41] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:06:41] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 266 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 130/328 variables, 187/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 283 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 561ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 94 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 11 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (546 resets) in 203 ms. (196 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1167528 steps, run timeout after 3001 ms. (steps per millisecond=389 ) properties seen :0 out of 1
Probabilistic random walk after 1167528 steps, saw 163685 distinct states, run finished after 3001 ms. (steps per millisecond=389 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:06:45] [INFO ] Computed 60 invariants in 5 ms
[2025-05-31 01:06:45] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 277 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 19/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 291 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 582ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 361 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=120 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 4 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (543 resets) in 160 ms. (248 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 87 ms. (454 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1122426 steps, run timeout after 3001 ms. (steps per millisecond=374 ) properties seen :0 out of 1
Probabilistic random walk after 1122426 steps, saw 157034 distinct states, run finished after 3001 ms. (steps per millisecond=374 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:06:49] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:06:49] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 174 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 130/328 variables, 187/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 214 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 396ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 99 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 12 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (558 resets) in 155 ms. (256 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (90 resets) in 75 ms. (526 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1157234 steps, run timeout after 3001 ms. (steps per millisecond=385 ) properties seen :0 out of 1
Probabilistic random walk after 1157234 steps, saw 162240 distinct states, run finished after 3001 ms. (steps per millisecond=385 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:06:52] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:06:52] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 201 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 19/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 239 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 444ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 361 steps, including 1 resets, run visited all 1 properties in 2 ms. (steps per millisecond=180 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (554 resets) in 170 ms. (233 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (85 resets) in 93 ms. (425 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1126373 steps, run timeout after 3001 ms. (steps per millisecond=375 ) properties seen :0 out of 1
Probabilistic random walk after 1126373 steps, saw 157600 distinct states, run finished after 3001 ms. (steps per millisecond=375 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:06:56] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:06:56] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 248 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 130/328 variables, 187/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 257 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 513ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 122 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 11 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (539 resets) in 164 ms. (242 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (87 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1201481 steps, run timeout after 3001 ms. (steps per millisecond=400 ) properties seen :0 out of 1
Probabilistic random walk after 1201481 steps, saw 168269 distinct states, run finished after 3001 ms. (steps per millisecond=400 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:06:59] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:06:59] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 290 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 19/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 288 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 585ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 137 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:07:00] [INFO ] Invariant cache hit.
[2025-05-31 01:07:01] [INFO ] Implicit Places using invariants in 364 ms returned []
[2025-05-31 01:07:01] [INFO ] Invariant cache hit.
[2025-05-31 01:07:01] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:07:01] [INFO ] Implicit Places using invariants and state equation in 572 ms returned []
Implicit Place search using SMT with State Equation took 945 ms to find 0 implicit places.
[2025-05-31 01:07:01] [INFO ] Redundant transitions in 1 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:07:01] [INFO ] Invariant cache hit.
[2025-05-31 01:07:01] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:07:06] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 1 ms to minimize.
[2025-05-31 01:07:06] [INFO ] Deduced a trap composed of 8 places in 49 ms of which 1 ms to minimize.
[2025-05-31 01:07:06] [INFO ] Deduced a trap composed of 12 places in 53 ms of which 1 ms to minimize.
[2025-05-31 01:07:07] [INFO ] Deduced a trap composed of 7 places in 68 ms of which 2 ms to minimize.
[2025-05-31 01:07:07] [INFO ] Deduced a trap composed of 11 places in 74 ms of which 2 ms to minimize.
[2025-05-31 01:07:07] [INFO ] Deduced a trap composed of 7 places in 63 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:07:08] [INFO ] Deduced a trap composed of 6 places in 50 ms of which 1 ms to minimize.
[2025-05-31 01:07:08] [INFO ] Deduced a trap composed of 8 places in 58 ms of which 1 ms to minimize.
[2025-05-31 01:07:08] [INFO ] Deduced a trap composed of 10 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:07:08] [INFO ] Deduced a trap composed of 17 places in 78 ms of which 2 ms to minimize.
[2025-05-31 01:07:08] [INFO ] Deduced a trap composed of 16 places in 60 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:07:11] [INFO ] Deduced a trap composed of 17 places in 78 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 13333 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:07:39] [INFO ] Deduced a trap composed of 7 places in 34 ms of which 1 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30009 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 43405ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 43408ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44369 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:07:45] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:07:45] [INFO ] [Real]Absence check using 36 positive place invariants in 15 ms returned sat
[2025-05-31 01:07:45] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:07:45] [INFO ] After 103ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:07:45] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:07:45] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 15 ms returned sat
[2025-05-31 01:07:45] [INFO ] After 104ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:07:45] [INFO ] Deduced a trap composed of 10 places in 56 ms of which 2 ms to minimize.
[2025-05-31 01:07:45] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 72 ms
TRAPS : Iteration 1
[2025-05-31 01:07:45] [INFO ] After 196ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:07:45] [INFO ] After 282ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 396 ms.
RANDOM walk for 40000 steps (543 resets) in 132 ms. (300 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (93 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1344590 steps, run timeout after 3001 ms. (steps per millisecond=448 ) properties seen :0 out of 1
Probabilistic random walk after 1344590 steps, saw 187867 distinct states, run finished after 3001 ms. (steps per millisecond=448 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:07:48] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:07:48] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 237 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:07:48] [INFO ] Deduced a trap composed of 9 places in 41 ms of which 1 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/198 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 130/328 variables, 187/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 2/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 241 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 485ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 88 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 8 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (541 resets) in 98 ms. (404 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (88 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1349025 steps, run timeout after 3001 ms. (steps per millisecond=449 ) properties seen :0 out of 1
Probabilistic random walk after 1349025 steps, saw 188586 distinct states, run finished after 3005 ms. (steps per millisecond=448 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:07:52] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:07:52] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 210 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 19/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 219 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 450ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 433 steps, including 1 resets, run visited all 1 properties in 2 ms. (steps per millisecond=216 )
Parikh walk visited 1 properties in 1 ms.
RANDOM walk for 40000 steps (534 resets) in 102 ms. (388 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (91 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1346860 steps, run timeout after 3001 ms. (steps per millisecond=448 ) properties seen :0 out of 1
Probabilistic random walk after 1346860 steps, saw 188170 distinct states, run finished after 3003 ms. (steps per millisecond=448 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:07:55] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:07:55] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 177 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:07:56] [INFO ] Deduced a trap composed of 8 places in 58 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/198 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 130/328 variables, 187/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 2/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 240 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 434ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 87 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 7 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (559 resets) in 126 ms. (314 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 60 ms. (655 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1351264 steps, run timeout after 3001 ms. (steps per millisecond=450 ) properties seen :0 out of 1
Probabilistic random walk after 1351264 steps, saw 188925 distinct states, run finished after 3001 ms. (steps per millisecond=450 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:07:59] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:07:59] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 213 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 19/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 205 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 431ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 81 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:07:59] [INFO ] Invariant cache hit.
[2025-05-31 01:07:59] [INFO ] Implicit Places using invariants in 210 ms returned []
[2025-05-31 01:07:59] [INFO ] Invariant cache hit.
[2025-05-31 01:08:00] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:08:00] [INFO ] Implicit Places using invariants and state equation in 367 ms returned []
Implicit Place search using SMT with State Equation took 588 ms to find 0 implicit places.
[2025-05-31 01:08:00] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:08:00] [INFO ] Invariant cache hit.
[2025-05-31 01:08:00] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:08:04] [INFO ] Deduced a trap composed of 6 places in 30 ms of which 1 ms to minimize.
[2025-05-31 01:08:04] [INFO ] Deduced a trap composed of 8 places in 52 ms of which 2 ms to minimize.
[2025-05-31 01:08:04] [INFO ] Deduced a trap composed of 12 places in 54 ms of which 2 ms to minimize.
[2025-05-31 01:08:04] [INFO ] Deduced a trap composed of 7 places in 76 ms of which 2 ms to minimize.
[2025-05-31 01:08:04] [INFO ] Deduced a trap composed of 11 places in 74 ms of which 2 ms to minimize.
[2025-05-31 01:08:05] [INFO ] Deduced a trap composed of 7 places in 82 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:08:06] [INFO ] Deduced a trap composed of 6 places in 49 ms of which 2 ms to minimize.
[2025-05-31 01:08:06] [INFO ] Deduced a trap composed of 8 places in 59 ms of which 2 ms to minimize.
[2025-05-31 01:08:06] [INFO ] Deduced a trap composed of 10 places in 60 ms of which 1 ms to minimize.
[2025-05-31 01:08:06] [INFO ] Deduced a trap composed of 17 places in 72 ms of which 1 ms to minimize.
[2025-05-31 01:08:06] [INFO ] Deduced a trap composed of 16 places in 60 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:08:09] [INFO ] Deduced a trap composed of 17 places in 100 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 13674 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:08:41] [INFO ] Deduced a trap composed of 7 places in 42 ms of which 2 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30015 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 43741ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 43743ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 44339 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 8 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:08:44] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:08:44] [INFO ] [Real]Absence check using 36 positive place invariants in 14 ms returned sat
[2025-05-31 01:08:44] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 23 ms returned sat
[2025-05-31 01:08:44] [INFO ] After 126ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:08:44] [INFO ] [Nat]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 01:08:44] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 01:08:44] [INFO ] After 140ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:08:44] [INFO ] After 162ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:08:44] [INFO ] After 278ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 420 ms.
RANDOM walk for 40000 steps (534 resets) in 190 ms. (209 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (90 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1221203 steps, run timeout after 3001 ms. (steps per millisecond=406 ) properties seen :0 out of 1
Probabilistic random walk after 1221203 steps, saw 171010 distinct states, run finished after 3001 ms. (steps per millisecond=406 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:08:47] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:08:47] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 246 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 130/328 variables, 187/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 269 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 519ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 171 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 193 transition count 135
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 192 transition count 134
Applied a total of 2 rules in 10 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (545 resets) in 155 ms. (256 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (94 resets) in 77 ms. (512 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1279897 steps, run timeout after 3001 ms. (steps per millisecond=426 ) properties seen :0 out of 1
Probabilistic random walk after 1279897 steps, saw 178401 distinct states, run finished after 3001 ms. (steps per millisecond=426 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:08:51] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:08:51] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 19/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 305 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 19/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 308 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 619ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 173 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 4 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:08:52] [INFO ] Invariant cache hit.
[2025-05-31 01:08:52] [INFO ] Implicit Places using invariants in 359 ms returned []
[2025-05-31 01:08:52] [INFO ] Invariant cache hit.
[2025-05-31 01:08:52] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:08:53] [INFO ] Implicit Places using invariants and state equation in 567 ms returned []
Implicit Place search using SMT with State Equation took 928 ms to find 0 implicit places.
[2025-05-31 01:08:53] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:08:53] [INFO ] Invariant cache hit.
[2025-05-31 01:08:53] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 0/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (OVERLAPS) 1/326 variables, 1/254 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:08:58] [INFO ] Deduced a trap composed of 6 places in 31 ms of which 1 ms to minimize.
[2025-05-31 01:08:58] [INFO ] Deduced a trap composed of 8 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:08:59] [INFO ] Deduced a trap composed of 12 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:08:59] [INFO ] Deduced a trap composed of 7 places in 90 ms of which 2 ms to minimize.
[2025-05-31 01:08:59] [INFO ] Deduced a trap composed of 11 places in 104 ms of which 2 ms to minimize.
[2025-05-31 01:08:59] [INFO ] Deduced a trap composed of 7 places in 94 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/326 variables, 6/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:09:01] [INFO ] Deduced a trap composed of 6 places in 67 ms of which 2 ms to minimize.
[2025-05-31 01:09:01] [INFO ] Deduced a trap composed of 8 places in 86 ms of which 3 ms to minimize.
[2025-05-31 01:09:01] [INFO ] Deduced a trap composed of 10 places in 91 ms of which 3 ms to minimize.
[2025-05-31 01:09:01] [INFO ] Deduced a trap composed of 17 places in 106 ms of which 3 ms to minimize.
[2025-05-31 01:09:01] [INFO ] Deduced a trap composed of 16 places in 86 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/326 variables, 5/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:09:05] [INFO ] Deduced a trap composed of 17 places in 82 ms of which 2 ms to minimize.
At refinement iteration 12 (OVERLAPS) 0/326 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (OVERLAPS) 0/326 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 266 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16273 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 12/12 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 11/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/71 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 1/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 0/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 11 (OVERLAPS) 1/326 variables, 1/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 0/397 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:09:36] [INFO ] Deduced a trap composed of 7 places in 35 ms of which 1 ms to minimize.
At refinement iteration 13 (OVERLAPS) 0/326 variables, 1/398 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 326/326 variables, and 398 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 13/13 constraints]
After SMT, in 46357ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46361ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47300 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 5 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:09:39] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:09:39] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:09:39] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 01:09:39] [INFO ] After 107ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:09:39] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:09:39] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:09:39] [INFO ] After 134ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:09:39] [INFO ] After 152ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:09:39] [INFO ] After 267ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 386 ms.
RANDOM walk for 40000 steps (552 resets) in 132 ms. (300 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (90 resets) in 64 ms. (615 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1266353 steps, run timeout after 3001 ms. (steps per millisecond=421 ) properties seen :0 out of 1
Probabilistic random walk after 1266353 steps, saw 176846 distinct states, run finished after 3001 ms. (steps per millisecond=421 ) properties seen :0
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:09:42] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:09:42] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/198 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/198 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 130/328 variables, 187/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 245 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:09:43] [INFO ] Deduced a trap composed of 9 places in 77 ms of which 2 ms to minimize.
[2025-05-31 01:09:43] [INFO ] Deduced a trap composed of 12 places in 90 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/198 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 130/328 variables, 187/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 397 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 647ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 562 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=187 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (531 resets) in 172 ms. (231 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (80 resets) in 79 ms. (500 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1197880 steps, run timeout after 3001 ms. (steps per millisecond=399 ) properties seen :0 out of 1
Probabilistic random walk after 1197880 steps, saw 167704 distinct states, run finished after 3001 ms. (steps per millisecond=399 ) properties seen :0
[2025-05-31 01:09:46] [INFO ] Invariant cache hit.
[2025-05-31 01:09:46] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:09:46] [INFO ] Deduced a trap composed of 10 places in 33 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 130/328 variables, 187/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:09:46] [INFO ] Deduced a trap composed of 11 places in 42 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 1/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 332 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/112 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 86/198 variables, 24/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/198 variables, 1/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/198 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 130/328 variables, 187/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 2/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/328 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 258 constraints, problems are : Problem set: 0 solved, 1 unsolved in 269 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 605ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 8704 steps, including 83 resets, run visited all 1 properties in 38 ms. (steps per millisecond=229 )
Parikh walk visited 1 properties in 42 ms.
RANDOM walk for 40000 steps (526 resets) in 162 ms. (245 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1280483 steps, run timeout after 3001 ms. (steps per millisecond=426 ) properties seen :0 out of 1
Probabilistic random walk after 1280483 steps, saw 178472 distinct states, run finished after 3002 ms. (steps per millisecond=426 ) properties seen :0
[2025-05-31 01:09:50] [INFO ] Invariant cache hit.
[2025-05-31 01:09:50] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/28 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/112 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:09:50] [INFO ] Deduced a trap composed of 10 places in 37 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/112 variables, 1/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/198 variables, 24/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/198 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 130/328 variables, 187/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 213 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 24/27 variables, 4/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/28 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/28 variables, 1/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/28 variables, 0/8 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/112 variables, 35/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/112 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/112 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 86/198 variables, 24/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/198 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 130/328 variables, 187/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 2/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 0/328 variables, 0/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 257 constraints, problems are : Problem set: 0 solved, 1 unsolved in 235 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 463ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 2586 steps, including 176 resets, run visited all 1 properties in 7 ms. (steps per millisecond=369 )
Parikh walk visited 1 properties in 6 ms.
RANDOM walk for 40000 steps (519 resets) in 116 ms. (341 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (86 resets) in 67 ms. (588 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1206268 steps, run timeout after 3001 ms. (steps per millisecond=401 ) properties seen :0 out of 1
Probabilistic random walk after 1206268 steps, saw 168915 distinct states, run finished after 3001 ms. (steps per millisecond=401 ) properties seen :0
[2025-05-31 01:09:53] [INFO ] Invariant cache hit.
[2025-05-31 01:09:53] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 23/26 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/26 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1/27 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/27 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 84/111 variables, 35/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/111 variables, 0/41 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 86/197 variables, 24/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/197 variables, 0/65 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (OVERLAPS) 131/328 variables, 188/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/328 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/328 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 328/328 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 171 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 23/26 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/26 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/26 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 1/27 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/27 variables, 1/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/27 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 84/111 variables, 35/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/111 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 86/197 variables, 24/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/197 variables, 0/66 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 131/328 variables, 188/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/328 variables, 2/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/328 variables, 0/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 328/328 variables, and 256 constraints, problems are : Problem set: 0 solved, 1 unsolved in 199 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 193/193 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 383ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 141 ms.
Support contains 1 out of 193 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 193/193 places, 135/135 transitions.
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 1 place count 192 transition count 134
Applied a total of 1 rules in 5 ms. Remains 192 /193 variables (removed 1) and now considering 134/135 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 192/193 places, 134/135 transitions.
RANDOM walk for 40000 steps (533 resets) in 174 ms. (228 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (86 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1101387 steps, run timeout after 3001 ms. (steps per millisecond=367 ) properties seen :0 out of 1
Probabilistic random walk after 1101387 steps, saw 154126 distinct states, run finished after 3001 ms. (steps per millisecond=367 ) properties seen :0
// Phase 1: matrix 134 rows 192 cols
[2025-05-31 01:09:57] [INFO ] Computed 60 invariants in 1 ms
[2025-05-31 01:09:57] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 23/48 variables, 20/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/48 variables, 0/25 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/49 variables, 1/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 11/60 variables, 6/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/60 variables, 2/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 0/35 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 2/62 variables, 1/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/62 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 4/66 variables, 2/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/66 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 76/142 variables, 1/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/142 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 36/178 variables, 20/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/178 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/210 variables, 22/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/210 variables, 0/81 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 24 (OVERLAPS) 9/219 variables, 9/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/219 variables, 0/90 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 107/326 variables, 161/251 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/326 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 2/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/326 variables, 0/254 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 254 constraints, problems are : Problem set: 0 solved, 1 unsolved in 270 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 2/3 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/3 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 22/25 variables, 3/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/25 variables, 1/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/25 variables, 1/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/25 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 23/48 variables, 20/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/48 variables, 0/26 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/49 variables, 1/27 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/49 variables, 1/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/49 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 11/60 variables, 6/34 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/60 variables, 2/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/60 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 2/62 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/62 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 4/66 variables, 2/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/66 variables, 0/39 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 76/142 variables, 1/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/142 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 36/178 variables, 20/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/178 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 32/210 variables, 22/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/210 variables, 0/82 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 9/219 variables, 9/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/219 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 107/326 variables, 161/252 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/326 variables, 1/253 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/326 variables, 2/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 30 (INCLUDED_ONLY) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 31 (OVERLAPS) 0/326 variables, 0/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 326/326 variables, and 255 constraints, problems are : Problem set: 0 solved, 1 unsolved in 234 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 518ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 135 ms.
Support contains 1 out of 192 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 2 ms. Remains : 192/192 places, 134/134 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 192/192 places, 134/134 transitions.
Applied a total of 0 rules in 2 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
[2025-05-31 01:09:58] [INFO ] Invariant cache hit.
[2025-05-31 01:09:58] [INFO ] Implicit Places using invariants in 307 ms returned []
[2025-05-31 01:09:58] [INFO ] Invariant cache hit.
[2025-05-31 01:09:58] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:09:58] [INFO ] Implicit Places using invariants and state equation in 466 ms returned []
Implicit Place search using SMT with State Equation took 775 ms to find 0 implicit places.
[2025-05-31 01:09:58] [INFO ] Redundant transitions in 0 ms returned []
Running 131 sub problems to find dead transitions.
[2025-05-31 01:09:58] [INFO ] Invariant cache hit.
[2025-05-31 01:09:58] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/191 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/191 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (OVERLAPS) 134/325 variables, 191/251 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/325 variables, 2/253 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:02] [INFO ] Deduced a trap composed of 6 places in 99 ms of which 3 ms to minimize.
[2025-05-31 01:10:02] [INFO ] Deduced a trap composed of 15 places in 110 ms of which 2 ms to minimize.
[2025-05-31 01:10:03] [INFO ] Deduced a trap composed of 8 places in 49 ms of which 1 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/325 variables, 3/256 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:04] [INFO ] Deduced a trap composed of 15 places in 92 ms of which 3 ms to minimize.
[2025-05-31 01:10:04] [INFO ] Deduced a trap composed of 22 places in 110 ms of which 2 ms to minimize.
[2025-05-31 01:10:05] [INFO ] Deduced a trap composed of 10 places in 39 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 10 (OVERLAPS) 1/326 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:08] [INFO ] Deduced a trap composed of 16 places in 76 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/326 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:09] [INFO ] Deduced a trap composed of 9 places in 75 ms of which 2 ms to minimize.
[2025-05-31 01:10:09] [INFO ] Deduced a trap composed of 7 places in 69 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/326 variables, 2/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:11] [INFO ] Deduced a trap composed of 20 places in 127 ms of which 3 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/326 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/326 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 15 (OVERLAPS) 0/326 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 131 unsolved
No progress, stopping.
After SMT solving in domain Real declared 326/326 variables, and 264 constraints, problems are : Problem set: 0 solved, 131 unsolved in 16423 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 192/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 10/10 constraints]
Escalating to Integer solving :Problem set: 0 solved, 131 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/189 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/189 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/189 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/189 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 4 (OVERLAPS) 2/191 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/191 variables, 3/70 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/191 variables, 0/70 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 7 (OVERLAPS) 134/325 variables, 191/261 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/325 variables, 2/263 constraints. Problems are: Problem set: 0 solved, 131 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/325 variables, 131/394 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:20] [INFO ] Deduced a trap composed of 6 places in 48 ms of which 1 ms to minimize.
[2025-05-31 01:10:21] [INFO ] Deduced a trap composed of 14 places in 88 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/325 variables, 2/396 constraints. Problems are: Problem set: 0 solved, 131 unsolved
[2025-05-31 01:10:30] [INFO ] Deduced a trap composed of 15 places in 62 ms of which 1 ms to minimize.
[2025-05-31 01:10:30] [INFO ] Deduced a trap composed of 12 places in 53 ms of which 1 ms to minimize.
[2025-05-31 01:10:30] [INFO ] Deduced a trap composed of 11 places in 61 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/325 variables, 3/399 constraints. Problems are: Problem set: 0 solved, 131 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 325/326 variables, and 399 constraints, problems are : Problem set: 0 solved, 131 unsolved in 30011 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 191/192 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 131/131 constraints, Known Traps: 15/15 constraints]
After SMT, in 46473ms problems are : Problem set: 0 solved, 131 unsolved
Search for dead transitions found 0 dead transitions in 46476ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47262 ms. Remains : 192/192 places, 134/134 transitions.
Attempting over-approximation, by ignoring read arcs.
Applied a total of 0 rules in 3 ms. Remains 192 /192 variables (removed 0) and now considering 134/134 (removed 0) transitions.
Running SMT prover for 1 properties.
[2025-05-31 01:10:45] [INFO ] Invariant cache hit.
[2025-05-31 01:10:45] [INFO ] [Real]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:10:45] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 13 ms returned sat
[2025-05-31 01:10:45] [INFO ] After 99ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:10:45] [INFO ] [Nat]Absence check using 36 positive place invariants in 8 ms returned sat
[2025-05-31 01:10:45] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 13 ms returned sat
[2025-05-31 01:10:45] [INFO ] After 107ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:10:45] [INFO ] After 122ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:10:45] [INFO ] After 216ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 324 ms.
Attempting over-approximation, by ignoring read arcs.
Applied a total of 0 rules in 2 ms. Remains 193 /193 variables (removed 0) and now considering 135/135 (removed 0) transitions.
Running SMT prover for 47 properties.
// Phase 1: matrix 135 rows 193 cols
[2025-05-31 01:10:45] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:10:46] [INFO ] [Real]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:10:46] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 14 ms returned sat
[2025-05-31 01:10:46] [INFO ] After 576ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:47
[2025-05-31 01:10:46] [INFO ] [Nat]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 01:10:46] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 17 ms returned sat
[2025-05-31 01:10:48] [INFO ] After 1436ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :47
TRAPS : Iteration 0
[2025-05-31 01:10:48] [INFO ] Deduced a trap composed of 13 places in 73 ms of which 2 ms to minimize.
[2025-05-31 01:10:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 103 ms
TRAPS : Iteration 1
[2025-05-31 01:10:49] [INFO ] Deduced a trap composed of 12 places in 49 ms of which 1 ms to minimize.
[2025-05-31 01:10:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 65 ms
[2025-05-31 01:10:50] [INFO ] Deduced a trap composed of 11 places in 50 ms of which 1 ms to minimize.
[2025-05-31 01:10:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 81 ms
TRAPS : Iteration 2
[2025-05-31 01:10:51] [INFO ] Deduced a trap composed of 9 places in 25 ms of which 1 ms to minimize.
[2025-05-31 01:10:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 46 ms
TRAPS : Iteration 3
[2025-05-31 01:10:52] [INFO ] Deduced a trap composed of 6 places in 31 ms of which 1 ms to minimize.
[2025-05-31 01:10:52] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 51 ms
TRAPS : Iteration 4
[2025-05-31 01:10:55] [INFO ] After 8429ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :47
[2025-05-31 01:10:56] [INFO ] After 10137ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :47
Over-approximation ignoring read arcs solved 0 properties in 10747 ms.
Unable to solve all queries for examination QuasiLiveness. Remains :47 assertions to prove.
No /home/mcc/execution/QuasiLiveness.xml examination file found. Proceeding without properties.
Parsed 47 properties from file /home/mcc/execution/QuasiLiveness.xml in 2 ms.
Working with output stream class java.io.PrintStream
Total runtime 1625040 ms.
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running DES-PT-20a

IS_COLORED=
IS_NUPN=1

LOADING model.pnml ...
MODEL CLASS: P/T NET WITH NUPN EXTENSION
PLACES: 195
TRANSITIONS: 152
CONSTANTS: 0
TEMPLATE VARS: 0
ARCS: 742
NUPN UNITS: 60
LOADING TIME: 0.425

SAVING AS /home/mcc/execution/model.(net/def) ...
exportGspn useExt=true
SAVING TIME: 0.036
SAVING NAME MAP FILE /home/mcc/execution/model.id2name ...
SAVING NUPN UNITS AS FILE /home/mcc/execution/model.nu ...
TOTAL TIME: 0.752
OK.
----------------------------------------------------------------------
GreatSPN/Meddly.
Copyright (C) 1987-2022, University of Torino, Italy.
website: https://github.com/greatspn/SOURCES

Based on MEDDLY version 0.16.0
Copyright (C) 2009, Iowa State University Research Foundation, Inc.
website: http://meddly.sourceforge.net

Process ID: 3048
MODEL NAME: /home/mcc/execution/model
195 places, 152 transitions.

Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Building monolithic NSF...
FORMULA QuasiLiveness TRUE TECHNIQUES DECISION_DIAGRAMS PARALLEL_PROCESSING UNFOLDING_TO_PT USE_NUPN TOPOLOGICAL
Ok.
EXITCODE: 0
----------------------------------------------------------------------

BK_STOP 1748653886296

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -timeout 180 -rebuildPNML

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="DES-PT-20a"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2024"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5832"
echo " Executing tool gold2024"
echo " Input is DES-PT-20a, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r070-smll-174854076400187"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DES-PT-20a.tgz
mv DES-PT-20a execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "QuasiLiveness.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;