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-174854076400197.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-30a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r070-smll-174854076400197
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 452K
-rw-r--r-- 1 mcc users 4.9K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 47K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K 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 3.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K 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 17K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.4K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 60K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K 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 70K 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 1748654155339

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-30a
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2025-05-31 01:15:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2025-05-31 01:15:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-31 01:15:58] [INFO ] Load time of PNML (sax parser for PT used): 186 ms
[2025-05-31 01:15:58] [INFO ] Transformed 234 places.
[2025-05-31 01:15:58] [INFO ] Transformed 191 transitions.
[2025-05-31 01:15:58] [INFO ] Found NUPN structural information;
[2025-05-31 01:15:58] [INFO ] Parsed PT model containing 234 places and 191 transitions and 926 arcs in 599 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 234/234 places, 191/191 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 234 transition count 177
Applied a total of 14 rules in 80 ms. Remains 234 /234 variables (removed 0) and now considering 177/191 (removed 14) transitions.
// Phase 1: matrix 177 rows 234 cols
[2025-05-31 01:15:58] [INFO ] Computed 59 invariants in 52 ms
[2025-05-31 01:15:59] [INFO ] Implicit Places using invariants in 921 ms returned [131]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 996 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 233/234 places, 177/191 transitions.
Applied a total of 0 rules in 10 ms. Remains 233 /233 variables (removed 0) and now considering 177/177 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1128 ms. Remains : 233/234 places, 177/191 transitions.
Discarding 9 transitions out of 177. Remains 168
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (889 resets) in 4333 ms. (9 steps per ms) remains 104/167 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 104/104 properties
BEST_FIRST walk for 402 steps (8 resets) in 13 ms. (28 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 15 ms. (25 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 15 ms. (25 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 16 ms. (23 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 16 ms. (23 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 13 ms. (28 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 14 ms. (26 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 15 ms. (25 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 13 ms. (28 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 13 ms. (28 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 18 ms. (21 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 19 ms. (20 steps per ms) remains 104/104 properties
BEST_FIRST walk for 402 steps (8 resets) in 13 ms. (28 steps per ms) remains 104/104 properties
BEST_FIRST walk for 402 steps (8 resets) in 11 ms. (33 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 14 ms. (26 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 12 ms. (31 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 14 ms. (26 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 14 ms. (26 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 8 ms. (44 steps per ms) remains 104/104 properties
BEST_FIRST walk for 402 steps (8 resets) in 8 ms. (44 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 9 ms. (40 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 6 ms. (57 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 9 ms. (40 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 9 ms. (40 steps per ms) remains 104/104 properties
BEST_FIRST walk for 402 steps (8 resets) in 6 ms. (57 steps per ms) remains 104/104 properties
BEST_FIRST walk for 403 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 6 ms. (57 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 8 ms. (44 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 5 ms. (67 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 104/104 properties
BEST_FIRST walk for 402 steps (8 resets) in 10 ms. (36 steps per ms) remains 104/104 properties
BEST_FIRST walk for 404 steps (8 resets) in 7 ms. (50 steps per ms) remains 104/104 properties
// Phase 1: matrix 177 rows 233 cols
[2025-05-31 01:16:01] [INFO ] Computed 58 invariants in 16 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/109 variables, 109/109 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/109 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 2 (OVERLAPS) 10/119 variables, 6/115 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/119 variables, 10/125 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/119 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 5 (OVERLAPS) 62/181 variables, 26/151 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 62/213 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/213 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 8 (OVERLAPS) 40/221 variables, 24/237 constraints. Problems are: Problem set: 0 solved, 104 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 9 (INCLUDED_ONLY) 0/221 variables, 40/277 constraints. Problems are: Problem set: 0 solved, 104 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 221/410 variables, and 277 constraints, problems are : Problem set: 0 solved, 104 unsolved in 5028 ms.
Refiners :[Domain max(s): 221/233 constraints, Positive P Invariants (semi-flows): 32/32 constraints, Generalized P Invariants (flows): 24/26 constraints, State Equation: 0/233 constraints, PredecessorRefiner: 104/104 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 104 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/109 variables, 109/109 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/109 variables, 0/109 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 2 (OVERLAPS) 10/119 variables, 6/115 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/119 variables, 10/125 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/119 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 5 (OVERLAPS) 62/181 variables, 26/151 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 62/213 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/213 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 8 (OVERLAPS) 40/221 variables, 24/237 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/221 variables, 40/277 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/221 variables, 0/277 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 11 (OVERLAPS) 4/225 variables, 2/279 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/225 variables, 4/283 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/225 variables, 0/283 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 14 (OVERLAPS) 176/401 variables, 225/508 constraints. Problems are: Problem set: 0 solved, 104 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/401 variables, 28/536 constraints. Problems are: Problem set: 0 solved, 104 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 401/410 variables, and 536 constraints, problems are : Problem set: 0 solved, 104 unsolved in 5019 ms.
Refiners :[Domain max(s): 225/233 constraints, Positive P Invariants (semi-flows): 32/32 constraints, Generalized P Invariants (flows): 26/26 constraints, State Equation: 225/233 constraints, PredecessorRefiner: 28/104 constraints, Known Traps: 0/0 constraints]
After SMT, in 10389ms problems are : Problem set: 0 solved, 104 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 109 out of 233 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 233/233 places, 177/177 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 233 transition count 175
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 232 transition count 174
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 232 transition count 174
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 232 transition count 174
Applied a total of 8 rules in 98 ms. Remains 232 /233 variables (removed 1) and now considering 174/177 (removed 3) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 98 ms. Remains : 232/233 places, 174/177 transitions.
RANDOM walk for 4000000 steps (53759 resets) in 41833 ms. (95 steps per ms) remains 94/104 properties
BEST_FIRST walk for 400002 steps (894 resets) in 1438 ms. (277 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400004 steps (908 resets) in 1445 ms. (276 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400003 steps (931 resets) in 986 ms. (405 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400003 steps (903 resets) in 947 ms. (421 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400002 steps (877 resets) in 950 ms. (420 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400004 steps (899 resets) in 957 ms. (417 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400004 steps (905 resets) in 950 ms. (420 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400004 steps (921 resets) in 997 ms. (400 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400003 steps (910 resets) in 1005 ms. (397 steps per ms) remains 94/94 properties
BEST_FIRST walk for 400003 steps (894 resets) in 956 ms. (417 steps per ms) remains 93/94 properties
BEST_FIRST walk for 400004 steps (919 resets) in 988 ms. (404 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400003 steps (907 resets) in 941 ms. (424 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (915 resets) in 964 ms. (414 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (928 resets) in 961 ms. (415 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (901 resets) in 949 ms. (421 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400002 steps (879 resets) in 956 ms. (417 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400003 steps (913 resets) in 950 ms. (420 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400003 steps (895 resets) in 949 ms. (421 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (914 resets) in 949 ms. (421 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (888 resets) in 949 ms. (421 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (918 resets) in 954 ms. (418 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400003 steps (900 resets) in 959 ms. (416 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400002 steps (921 resets) in 954 ms. (418 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (909 resets) in 955 ms. (418 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (911 resets) in 952 ms. (419 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (693 resets) in 976 ms. (409 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (681 resets) in 976 ms. (409 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (692 resets) in 966 ms. (413 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400003 steps (661 resets) in 971 ms. (411 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (685 resets) in 974 ms. (410 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400004 steps (697 resets) in 974 ms. (410 steps per ms) remains 93/93 properties
BEST_FIRST walk for 400002 steps (700 resets) in 1025 ms. (389 steps per ms) remains 92/93 properties
BEST_FIRST walk for 400004 steps (688 resets) in 993 ms. (402 steps per ms) remains 92/92 properties
BEST_FIRST walk for 400004 steps (702 resets) in 1348 ms. (296 steps per ms) remains 92/92 properties
BEST_FIRST walk for 400004 steps (677 resets) in 969 ms. (412 steps per ms) remains 92/92 properties
BEST_FIRST walk for 400004 steps (675 resets) in 964 ms. (414 steps per ms) remains 91/92 properties
BEST_FIRST walk for 400004 steps (690 resets) in 976 ms. (409 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (695 resets) in 971 ms. (411 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (687 resets) in 967 ms. (413 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (699 resets) in 976 ms. (409 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (689 resets) in 970 ms. (411 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (688 resets) in 970 ms. (411 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (692 resets) in 976 ms. (409 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (667 resets) in 964 ms. (414 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (670 resets) in 969 ms. (412 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (726 resets) in 970 ms. (411 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (685 resets) in 969 ms. (412 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (692 resets) in 991 ms. (403 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (709 resets) in 982 ms. (406 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (2913 resets) in 1208 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2906 resets) in 1205 ms. (331 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2903 resets) in 1206 ms. (331 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2908 resets) in 1209 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (2920 resets) in 1208 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2909 resets) in 1210 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (2911 resets) in 1205 ms. (331 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2913 resets) in 1207 ms. (331 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2903 resets) in 1223 ms. (326 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2908 resets) in 1217 ms. (328 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2916 resets) in 1215 ms. (328 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2910 resets) in 1212 ms. (329 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2911 resets) in 1210 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2917 resets) in 1219 ms. (327 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (2901 resets) in 1202 ms. (332 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2912 resets) in 1233 ms. (324 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2910 resets) in 1217 ms. (328 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2912 resets) in 1206 ms. (331 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2908 resets) in 1208 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (2914 resets) in 1210 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2907 resets) in 1211 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (2901 resets) in 1209 ms. (330 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (2918 resets) in 1218 ms. (328 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (2915 resets) in 1223 ms. (326 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400002 steps (982 resets) in 983 ms. (406 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400003 steps (967 resets) in 971 ms. (411 steps per ms) remains 91/91 properties
BEST_FIRST walk for 400004 steps (953 resets) in 980 ms. (407 steps per ms) remains 90/91 properties
BEST_FIRST walk for 400004 steps (970 resets) in 981 ms. (407 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400003 steps (967 resets) in 977 ms. (409 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400003 steps (989 resets) in 977 ms. (409 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (957 resets) in 976 ms. (409 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400002 steps (969 resets) in 983 ms. (406 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400002 steps (969 resets) in 990 ms. (403 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400002 steps (933 resets) in 982 ms. (406 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (966 resets) in 978 ms. (408 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (973 resets) in 978 ms. (408 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (931 resets) in 973 ms. (410 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (977 resets) in 980 ms. (407 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400002 steps (984 resets) in 975 ms. (409 steps per ms) remains 90/90 properties
BEST_FIRST walk for 400004 steps (949 resets) in 972 ms. (411 steps per ms) remains 89/90 properties
BEST_FIRST walk for 400002 steps (959 resets) in 971 ms. (411 steps per ms) remains 85/89 properties
BEST_FIRST walk for 400003 steps (990 resets) in 948 ms. (421 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (949 resets) in 936 ms. (426 steps per ms) remains 85/85 properties
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:16:48] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 01:16:48] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (OVERLAPS) 10/100 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 72/172 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/172 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (OVERLAPS) 49/221 variables, 24/60 constraints. Problems are: Problem set: 0 solved, 85 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (OVERLAPS) 174/395 variables, 221/281 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/395 variables, 2/283 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:16:53] [INFO ] Deduced a trap composed of 17 places in 132 ms of which 20 ms to minimize.
[2025-05-31 01:16:53] [INFO ] Deduced a trap composed of 19 places in 107 ms of which 3 ms to minimize.
[2025-05-31 01:16:53] [INFO ] Deduced a trap composed of 18 places in 84 ms of which 2 ms to minimize.
[2025-05-31 01:16:53] [INFO ] Deduced a trap composed of 11 places in 139 ms of which 4 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/395 variables, 4/287 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:16:56] [INFO ] Deduced a trap composed of 12 places in 118 ms of which 4 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/395 variables, 1/288 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/395 variables, 0/288 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 12 (OVERLAPS) 11/406 variables, 11/299 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:16:59] [INFO ] Deduced a trap composed of 6 places in 70 ms of which 2 ms to minimize.
[2025-05-31 01:16:59] [INFO ] Deduced a trap composed of 7 places in 78 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 85 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 301 constraints, problems are : Problem set: 0 solved, 85 unsolved in 14904 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 7/7 constraints]
Escalating to Integer solving :Problem set: 0 solved, 85 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (OVERLAPS) 10/100 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 72/172 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/172 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/172 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 6 (OVERLAPS) 49/221 variables, 24/61 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 6/67 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/221 variables, 0/67 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 9 (OVERLAPS) 174/395 variables, 221/288 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/395 variables, 2/290 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/395 variables, 23/313 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:17:08] [INFO ] Deduced a trap composed of 8 places in 92 ms of which 3 ms to minimize.
[2025-05-31 01:17:10] [INFO ] Deduced a trap composed of 18 places in 93 ms of which 2 ms to minimize.
[2025-05-31 01:17:10] [INFO ] Deduced a trap composed of 19 places in 110 ms of which 2 ms to minimize.
[2025-05-31 01:17:10] [INFO ] Deduced a trap composed of 17 places in 70 ms of which 2 ms to minimize.
[2025-05-31 01:17:10] [INFO ] Deduced a trap composed of 17 places in 66 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/395 variables, 5/318 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:17:16] [INFO ] Deduced a trap composed of 9 places in 46 ms of which 1 ms to minimize.
[2025-05-31 01:17:17] [INFO ] Deduced a trap composed of 8 places in 63 ms of which 1 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/395 variables, 2/320 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:17:28] [INFO ] Deduced a trap composed of 10 places in 125 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/395 variables, 1/321 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/395 variables, 0/321 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 16 (OVERLAPS) 11/406 variables, 11/332 constraints. Problems are: Problem set: 0 solved, 85 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 406/406 variables, and 394 constraints, problems are : Problem set: 0 solved, 85 unsolved in 45033 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 15/15 constraints]
After SMT, in 60037ms problems are : Problem set: 0 solved, 85 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 90 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 transitions.
Applied a total of 0 rules in 31 ms. Remains 232 /232 variables (removed 0) and now considering 174/174 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 31 ms. Remains : 232/232 places, 174/174 transitions.
RANDOM walk for 4000000 steps (53864 resets) in 37144 ms. (107 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (929 resets) in 924 ms. (432 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (905 resets) in 919 ms. (434 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (909 resets) in 922 ms. (433 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (891 resets) in 915 ms. (436 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (925 resets) in 932 ms. (428 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (915 resets) in 915 ms. (436 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (894 resets) in 917 ms. (435 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (888 resets) in 910 ms. (439 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (916 resets) in 925 ms. (431 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (907 resets) in 918 ms. (435 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (907 resets) in 915 ms. (436 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (894 resets) in 921 ms. (433 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (897 resets) in 919 ms. (434 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (916 resets) in 919 ms. (434 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (908 resets) in 919 ms. (434 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (901 resets) in 923 ms. (432 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (899 resets) in 922 ms. (433 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (898 resets) in 925 ms. (431 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (884 resets) in 917 ms. (435 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (902 resets) in 928 ms. (430 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (894 resets) in 925 ms. (431 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (900 resets) in 930 ms. (429 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (910 resets) in 923 ms. (432 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (677 resets) in 940 ms. (425 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (687 resets) in 941 ms. (424 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (685 resets) in 935 ms. (427 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (701 resets) in 946 ms. (422 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (707 resets) in 943 ms. (423 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (692 resets) in 940 ms. (425 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (675 resets) in 943 ms. (423 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (681 resets) in 943 ms. (423 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (678 resets) in 954 ms. (418 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (687 resets) in 944 ms. (423 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (716 resets) in 949 ms. (421 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (700 resets) in 955 ms. (418 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (676 resets) in 933 ms. (428 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (670 resets) in 941 ms. (424 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (680 resets) in 947 ms. (421 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400001 steps (688 resets) in 930 ms. (429 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (651 resets) in 961 ms. (415 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (690 resets) in 1437 ms. (278 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (687 resets) in 1507 ms. (265 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (680 resets) in 1415 ms. (282 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (686 resets) in 1659 ms. (240 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (2917 resets) in 1995 ms. (200 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (2915 resets) in 2071 ms. (193 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400001 steps (2908 resets) in 2246 ms. (178 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (2909 resets) in 2048 ms. (195 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (2910 resets) in 2084 ms. (191 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (2916 resets) in 2448 ms. (163 steps per ms) remains 85/85 properties
Interrupted probabilistic random walk after 8926314 steps, run timeout after 78001 ms. (steps per millisecond=114 ) properties seen :0 out of 85
Probabilistic random walk after 8926314 steps, saw 1138106 distinct states, run finished after 78011 ms. (steps per millisecond=114 ) properties seen :0
[2025-05-31 01:19:33] [INFO ] Invariant cache hit.
[2025-05-31 01:19:33] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (OVERLAPS) 10/100 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 72/172 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/172 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (OVERLAPS) 49/221 variables, 24/60 constraints. Problems are: Problem set: 0 solved, 85 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (OVERLAPS) 174/395 variables, 221/281 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/395 variables, 2/283 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:19:37] [INFO ] Deduced a trap composed of 16 places in 130 ms of which 3 ms to minimize.
[2025-05-31 01:19:37] [INFO ] Deduced a trap composed of 19 places in 113 ms of which 3 ms to minimize.
[2025-05-31 01:19:37] [INFO ] Deduced a trap composed of 18 places in 57 ms of which 3 ms to minimize.
[2025-05-31 01:19:37] [INFO ] Deduced a trap composed of 11 places in 75 ms of which 2 ms to minimize.
[2025-05-31 01:19:38] [INFO ] Deduced a trap composed of 13 places in 98 ms of which 3 ms to minimize.
[2025-05-31 01:19:38] [INFO ] Deduced a trap composed of 13 places in 104 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/395 variables, 6/289 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/395 variables, 0/289 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 11 (OVERLAPS) 11/406 variables, 11/300 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:19:41] [INFO ] Deduced a trap composed of 6 places in 72 ms of which 2 ms to minimize.
[2025-05-31 01:19:41] [INFO ] Deduced a trap composed of 7 places in 76 ms of which 2 ms to minimize.
[2025-05-31 01:19:42] [INFO ] Deduced a trap composed of 9 places in 58 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 3/303 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 85 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 303 constraints, problems are : Problem set: 0 solved, 85 unsolved in 12044 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 85 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (OVERLAPS) 10/100 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 72/172 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/172 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/172 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 6 (OVERLAPS) 49/221 variables, 24/61 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 8/69 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/221 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 9 (OVERLAPS) 174/395 variables, 221/290 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/395 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/395 variables, 23/315 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:19:49] [INFO ] Deduced a trap composed of 17 places in 54 ms of which 2 ms to minimize.
[2025-05-31 01:19:49] [INFO ] Deduced a trap composed of 8 places in 107 ms of which 3 ms to minimize.
[2025-05-31 01:19:50] [INFO ] Deduced a trap composed of 9 places in 46 ms of which 1 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/395 variables, 3/318 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/395 variables, 0/318 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 14 (OVERLAPS) 11/406 variables, 11/329 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/406 variables, 62/391 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:20:21] [INFO ] Deduced a trap composed of 18 places in 101 ms of which 2 ms to minimize.
[2025-05-31 01:20:21] [INFO ] Deduced a trap composed of 17 places in 98 ms of which 3 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/406 variables, 2/393 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:20:40] [INFO ] Deduced a trap composed of 10 places in 74 ms of which 1 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/406 variables, 1/394 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/406 variables, 0/394 constraints. Problems are: Problem set: 0 solved, 85 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 406/406 variables, and 394 constraints, problems are : Problem set: 0 solved, 85 unsolved in 75016 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 15/15 constraints]
After SMT, in 87134ms problems are : Problem set: 0 solved, 85 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 90 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 transitions.
Applied a total of 0 rules in 19 ms. Remains 232 /232 variables (removed 0) and now considering 174/174 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 19 ms. Remains : 232/232 places, 174/174 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 transitions.
Applied a total of 0 rules in 18 ms. Remains 232 /232 variables (removed 0) and now considering 174/174 (removed 0) transitions.
[2025-05-31 01:21:00] [INFO ] Invariant cache hit.
[2025-05-31 01:21:01] [INFO ] Implicit Places using invariants in 293 ms returned []
[2025-05-31 01:21:01] [INFO ] Invariant cache hit.
[2025-05-31 01:21:01] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:21:01] [INFO ] Implicit Places using invariants and state equation in 443 ms returned []
Implicit Place search using SMT with State Equation took 739 ms to find 0 implicit places.
[2025-05-31 01:21:01] [INFO ] Redundant transitions in 10 ms returned []
Running 173 sub problems to find dead transitions.
[2025-05-31 01:21:01] [INFO ] Invariant cache hit.
[2025-05-31 01:21:01] [INFO ] State equation strengthened by 2 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/231 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/231 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 2 (OVERLAPS) 1/232 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/232 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/232 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 5 (OVERLAPS) 174/406 variables, 232/292 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/406 variables, 2/294 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:21:06] [INFO ] Deduced a trap composed of 7 places in 67 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/406 variables, 1/295 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:21:07] [INFO ] Deduced a trap composed of 13 places in 93 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/406 variables, 1/296 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:21:12] [INFO ] Deduced a trap composed of 8 places in 81 ms of which 2 ms to minimize.
[2025-05-31 01:21:12] [INFO ] Deduced a trap composed of 16 places in 75 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/406 variables, 2/298 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:21:14] [INFO ] Deduced a trap composed of 17 places in 99 ms of which 3 ms to minimize.
[2025-05-31 01:21:14] [INFO ] Deduced a trap composed of 19 places in 111 ms of which 3 ms to minimize.
[2025-05-31 01:21:15] [INFO ] Deduced a trap composed of 11 places in 96 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/406 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 301 constraints, problems are : Problem set: 0 solved, 173 unsolved in 21929 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 173/173 constraints, Known Traps: 7/7 constraints]
Escalating to Integer solving :Problem set: 0 solved, 173 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/231 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/231 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 2 (OVERLAPS) 1/232 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/232 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/232 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:21:25] [INFO ] Deduced a trap composed of 12 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:21:26] [INFO ] Deduced a trap composed of 6 places in 21 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/232 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/232 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 7 (OVERLAPS) 174/406 variables, 232/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/406 variables, 2/303 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/406 variables, 173/476 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:21:36] [INFO ] Deduced a trap composed of 18 places in 74 ms of which 2 ms to minimize.
[2025-05-31 01:21:36] [INFO ] Deduced a trap composed of 17 places in 91 ms of which 2 ms to minimize.
[2025-05-31 01:21:37] [INFO ] Deduced a trap composed of 9 places in 91 ms of which 2 ms to minimize.
[2025-05-31 01:21:40] [INFO ] Deduced a trap composed of 8 places in 68 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/406 variables, 4/480 constraints. Problems are: Problem set: 0 solved, 173 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 406/406 variables, and 480 constraints, problems are : Problem set: 0 solved, 173 unsolved in 30022 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 173/173 constraints, Known Traps: 13/13 constraints]
After SMT, in 52063ms problems are : Problem set: 0 solved, 173 unsolved
Search for dead transitions found 0 dead transitions in 52067ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52855 ms. Remains : 232/232 places, 174/174 transitions.
RANDOM walk for 400000 steps (5407 resets) in 6343 ms. (63 steps per ms) remains 85/90 properties
Running SMT prover for 85 properties.
[2025-05-31 01:21:55] [INFO ] Invariant cache hit.
[2025-05-31 01:21:55] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:21:55] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 01:21:56] [INFO ] After 364ms SMT Verify possible using state equation in real domain returned unsat :0 sat :85
[2025-05-31 01:21:56] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:21:56] [INFO ] After 201ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :85
TRAPS : Iteration 0
[2025-05-31 01:21:56] [INFO ] Deduced a trap composed of 7 places in 56 ms of which 1 ms to minimize.
TRAPS : Iteration 1
[2025-05-31 01:21:58] [INFO ] After 2411ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:85
[2025-05-31 01:21:58] [INFO ] After 2959ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:85
[2025-05-31 01:21:58] [INFO ] [Nat]Absence check using 36 positive place invariants in 16 ms returned sat
[2025-05-31 01:21:58] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 34 ms returned sat
[2025-05-31 01:21:59] [INFO ] After 456ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :85
[2025-05-31 01:21:59] [INFO ] After 261ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :85
TRAPS : Iteration 0
[2025-05-31 01:21:59] [INFO ] Deduced a trap composed of 6 places in 47 ms of which 2 ms to minimize.
[2025-05-31 01:21:59] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 80 ms
TRAPS : Iteration 1
[2025-05-31 01:22:02] [INFO ] Deduced a trap composed of 13 places in 105 ms of which 3 ms to minimize.
[2025-05-31 01:22:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 125 ms
[2025-05-31 01:22:03] [INFO ] Deduced a trap composed of 21 places in 112 ms of which 3 ms to minimize.
[2025-05-31 01:22:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 144 ms
[2025-05-31 01:22:03] [INFO ] Deduced a trap composed of 11 places in 48 ms of which 2 ms to minimize.
[2025-05-31 01:22:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 70 ms
TRAPS : Iteration 2
[2025-05-31 01:22:03] [INFO ] Deduced a trap composed of 7 places in 52 ms of which 1 ms to minimize.
[2025-05-31 01:22:03] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 74 ms
[2025-05-31 01:22:05] [INFO ] Deduced a trap composed of 9 places in 54 ms of which 2 ms to minimize.
[2025-05-31 01:22:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 76 ms
TRAPS : Iteration 3
[2025-05-31 01:22:05] [INFO ] Deduced a trap composed of 8 places in 57 ms of which 3 ms to minimize.
[2025-05-31 01:22:05] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 79 ms
TRAPS : Iteration 4
[2025-05-31 01:22:08] [INFO ] Deduced a trap composed of 17 places in 66 ms of which 2 ms to minimize.
[2025-05-31 01:22:08] [INFO ] Deduced a trap composed of 12 places in 64 ms of which 2 ms to minimize.
[2025-05-31 01:22:08] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 164 ms
TRAPS : Iteration 5
[2025-05-31 01:22:10] [INFO ] Deduced a trap composed of 16 places in 49 ms of which 1 ms to minimize.
[2025-05-31 01:22:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 70 ms
TRAPS : Iteration 6
[2025-05-31 01:22:10] [INFO ] Deduced a trap composed of 19 places in 68 ms of which 2 ms to minimize.
[2025-05-31 01:22:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 91 ms
[2025-05-31 01:22:11] [INFO ] Deduced a trap composed of 8 places in 31 ms of which 1 ms to minimize.
[2025-05-31 01:22:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
[2025-05-31 01:22:11] [INFO ] Deduced a trap composed of 19 places in 76 ms of which 2 ms to minimize.
[2025-05-31 01:22:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 98 ms
TRAPS : Iteration 7
[2025-05-31 01:22:12] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 1 ms to minimize.
[2025-05-31 01:22:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 71 ms
TRAPS : Iteration 8
[2025-05-31 01:22:16] [INFO ] After 16817ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :85
[2025-05-31 01:22:16] [INFO ] After 17809ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :85
RANDOM walk for 4000000 steps (53828 resets) in 106237 ms. (37 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (894 resets) in 2368 ms. (168 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (925 resets) in 2779 ms. (143 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (897 resets) in 2707 ms. (147 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (889 resets) in 2770 ms. (144 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (892 resets) in 2653 ms. (150 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (937 resets) in 3028 ms. (132 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (913 resets) in 2961 ms. (135 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (899 resets) in 2578 ms. (155 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (874 resets) in 2322 ms. (172 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (901 resets) in 2460 ms. (162 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (915 resets) in 2584 ms. (154 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (899 resets) in 2719 ms. (147 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (900 resets) in 2667 ms. (149 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (923 resets) in 2389 ms. (167 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (916 resets) in 2569 ms. (155 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (920 resets) in 2684 ms. (148 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (907 resets) in 2726 ms. (146 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (916 resets) in 2604 ms. (153 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (921 resets) in 2335 ms. (171 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (903 resets) in 2821 ms. (141 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (917 resets) in 2506 ms. (159 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (920 resets) in 2304 ms. (173 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (913 resets) in 2742 ms. (145 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (687 resets) in 2983 ms. (134 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (690 resets) in 2660 ms. (150 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (690 resets) in 2905 ms. (137 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (694 resets) in 2709 ms. (147 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (703 resets) in 2888 ms. (138 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (700 resets) in 2701 ms. (148 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400001 steps (690 resets) in 2833 ms. (141 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (701 resets) in 2672 ms. (149 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (692 resets) in 3169 ms. (126 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (694 resets) in 2968 ms. (134 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (720 resets) in 2951 ms. (135 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (725 resets) in 2438 ms. (164 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (672 resets) in 3026 ms. (132 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (679 resets) in 2628 ms. (152 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (702 resets) in 2649 ms. (150 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (721 resets) in 3408 ms. (117 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400002 steps (686 resets) in 2965 ms. (134 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (696 resets) in 2681 ms. (149 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (682 resets) in 2833 ms. (141 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (691 resets) in 2872 ms. (139 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (683 resets) in 3295 ms. (121 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (2904 resets) in 3794 ms. (105 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (2915 resets) in 3741 ms. (106 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (2927 resets) in 4152 ms. (96 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400003 steps (2912 resets) in 3695 ms. (108 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (2912 resets) in 3558 ms. (112 steps per ms) remains 85/85 properties
BEST_FIRST walk for 400004 steps (2917 resets) in 3843 ms. (104 steps per ms) remains 85/85 properties
Interrupted probabilistic random walk after 28355325 steps, run timeout after 243001 ms. (steps per millisecond=116 ) properties seen :0 out of 85
Probabilistic random walk after 28355325 steps, saw 3409500 distinct states, run finished after 243003 ms. (steps per millisecond=116 ) properties seen :0
[2025-05-31 01:27:40] [INFO ] Invariant cache hit.
[2025-05-31 01:27:40] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (OVERLAPS) 10/100 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 72/172 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/172 variables, 0/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (OVERLAPS) 49/221 variables, 24/60 constraints. Problems are: Problem set: 0 solved, 85 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/221 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (OVERLAPS) 174/395 variables, 221/281 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/395 variables, 2/283 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:27:44] [INFO ] Deduced a trap composed of 16 places in 85 ms of which 3 ms to minimize.
[2025-05-31 01:27:44] [INFO ] Deduced a trap composed of 19 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:27:44] [INFO ] Deduced a trap composed of 18 places in 54 ms of which 2 ms to minimize.
[2025-05-31 01:27:44] [INFO ] Deduced a trap composed of 11 places in 51 ms of which 2 ms to minimize.
[2025-05-31 01:27:44] [INFO ] Deduced a trap composed of 13 places in 93 ms of which 2 ms to minimize.
[2025-05-31 01:27:45] [INFO ] Deduced a trap composed of 13 places in 98 ms of which 3 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/395 variables, 6/289 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/395 variables, 0/289 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 11 (OVERLAPS) 11/406 variables, 11/300 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:27:47] [INFO ] Deduced a trap composed of 6 places in 53 ms of which 1 ms to minimize.
[2025-05-31 01:27:47] [INFO ] Deduced a trap composed of 7 places in 51 ms of which 1 ms to minimize.
[2025-05-31 01:27:48] [INFO ] Deduced a trap composed of 9 places in 43 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 3/303 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/303 constraints. Problems are: Problem set: 0 solved, 85 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 303 constraints, problems are : Problem set: 0 solved, 85 unsolved in 10107 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 85 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/90 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 1 (OVERLAPS) 10/100 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/100 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 3 (OVERLAPS) 72/172 variables, 30/36 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/172 variables, 1/37 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/172 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 6 (OVERLAPS) 49/221 variables, 24/61 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/221 variables, 8/69 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/221 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 9 (OVERLAPS) 174/395 variables, 221/290 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/395 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/395 variables, 23/315 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:27:54] [INFO ] Deduced a trap composed of 17 places in 56 ms of which 2 ms to minimize.
[2025-05-31 01:27:54] [INFO ] Deduced a trap composed of 8 places in 68 ms of which 2 ms to minimize.
[2025-05-31 01:27:54] [INFO ] Deduced a trap composed of 9 places in 34 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/395 variables, 3/318 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/395 variables, 0/318 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 14 (OVERLAPS) 11/406 variables, 11/329 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/406 variables, 62/391 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:28:22] [INFO ] Deduced a trap composed of 18 places in 53 ms of which 2 ms to minimize.
[2025-05-31 01:28:22] [INFO ] Deduced a trap composed of 17 places in 53 ms of which 2 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/406 variables, 2/393 constraints. Problems are: Problem set: 0 solved, 85 unsolved
[2025-05-31 01:28:38] [INFO ] Deduced a trap composed of 10 places in 75 ms of which 1 ms to minimize.
At refinement iteration 17 (INCLUDED_ONLY) 0/406 variables, 1/394 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/406 variables, 0/394 constraints. Problems are: Problem set: 0 solved, 85 unsolved
At refinement iteration 19 (OVERLAPS) 0/406 variables, 0/394 constraints. Problems are: Problem set: 0 solved, 85 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 394 constraints, problems are : Problem set: 0 solved, 85 unsolved in 90009 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 85/85 constraints, Known Traps: 15/15 constraints]
After SMT, in 100173ms problems are : Problem set: 0 solved, 85 unsolved
Fused 85 Parikh solutions to 7 different solutions.
Parikh walk visited 0 properties in 3668 ms.
Support contains 90 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 transitions.
Applied a total of 0 rules in 10 ms. Remains 232 /232 variables (removed 0) and now considering 174/174 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 232/232 places, 174/174 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 transitions.
Applied a total of 0 rules in 9 ms. Remains 232 /232 variables (removed 0) and now considering 174/174 (removed 0) transitions.
[2025-05-31 01:29:24] [INFO ] Invariant cache hit.
[2025-05-31 01:29:24] [INFO ] Implicit Places using invariants in 175 ms returned []
[2025-05-31 01:29:24] [INFO ] Invariant cache hit.
[2025-05-31 01:29:24] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:29:24] [INFO ] Implicit Places using invariants and state equation in 309 ms returned []
Implicit Place search using SMT with State Equation took 501 ms to find 0 implicit places.
[2025-05-31 01:29:24] [INFO ] Redundant transitions in 7 ms returned []
Running 173 sub problems to find dead transitions.
[2025-05-31 01:29:24] [INFO ] Invariant cache hit.
[2025-05-31 01:29:24] [INFO ] State equation strengthened by 2 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/231 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/231 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 2 (OVERLAPS) 1/232 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/232 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/232 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 5 (OVERLAPS) 174/406 variables, 232/292 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/406 variables, 2/294 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:29:28] [INFO ] Deduced a trap composed of 7 places in 58 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/406 variables, 1/295 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:29:30] [INFO ] Deduced a trap composed of 13 places in 91 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/406 variables, 1/296 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:29:35] [INFO ] Deduced a trap composed of 8 places in 88 ms of which 3 ms to minimize.
[2025-05-31 01:29:35] [INFO ] Deduced a trap composed of 16 places in 76 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/406 variables, 2/298 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:29:37] [INFO ] Deduced a trap composed of 17 places in 159 ms of which 3 ms to minimize.
[2025-05-31 01:29:37] [INFO ] Deduced a trap composed of 19 places in 135 ms of which 3 ms to minimize.
[2025-05-31 01:29:38] [INFO ] Deduced a trap composed of 11 places in 106 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/406 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 301 constraints, problems are : Problem set: 0 solved, 173 unsolved in 21762 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 173/173 constraints, Known Traps: 7/7 constraints]
Escalating to Integer solving :Problem set: 0 solved, 173 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/231 variables, 11/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/231 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 2 (OVERLAPS) 1/232 variables, 36/47 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/232 variables, 13/60 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/232 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:29:48] [INFO ] Deduced a trap composed of 12 places in 54 ms of which 2 ms to minimize.
[2025-05-31 01:29:49] [INFO ] Deduced a trap composed of 6 places in 29 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/232 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/232 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 7 (OVERLAPS) 174/406 variables, 232/301 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/406 variables, 2/303 constraints. Problems are: Problem set: 0 solved, 173 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/406 variables, 173/476 constraints. Problems are: Problem set: 0 solved, 173 unsolved
[2025-05-31 01:29:59] [INFO ] Deduced a trap composed of 18 places in 84 ms of which 2 ms to minimize.
[2025-05-31 01:30:00] [INFO ] Deduced a trap composed of 17 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:30:01] [INFO ] Deduced a trap composed of 9 places in 87 ms of which 2 ms to minimize.
[2025-05-31 01:30:04] [INFO ] Deduced a trap composed of 8 places in 60 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/406 variables, 4/480 constraints. Problems are: Problem set: 0 solved, 173 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 406/406 variables, and 480 constraints, problems are : Problem set: 0 solved, 173 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 173/173 constraints, Known Traps: 13/13 constraints]
After SMT, in 51862ms problems are : Problem set: 0 solved, 173 unsolved
Search for dead transitions found 0 dead transitions in 51865ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52394 ms. Remains : 232/232 places, 174/174 transitions.
RANDOM walk for 400000 steps (5394 resets) in 8718 ms. (45 steps per ms) remains 85/90 properties
Running SMT prover for 85 properties.
[2025-05-31 01:30:19] [INFO ] Invariant cache hit.
[2025-05-31 01:30:19] [INFO ] [Real]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 01:30:19] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 24 ms returned sat
[2025-05-31 01:30:20] [INFO ] After 359ms SMT Verify possible using state equation in real domain returned unsat :0 sat :85
[2025-05-31 01:30:20] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:30:20] [INFO ] After 187ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :85
TRAPS : Iteration 0
[2025-05-31 01:30:20] [INFO ] Deduced a trap composed of 7 places in 41 ms of which 1 ms to minimize.
TRAPS : Iteration 1
[2025-05-31 01:30:22] [INFO ] After 2341ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :0 real:85
[2025-05-31 01:30:22] [INFO ] After 2941ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:85
[2025-05-31 01:30:22] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:30:22] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 22 ms returned sat
[2025-05-31 01:30:22] [INFO ] After 366ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :85
[2025-05-31 01:30:23] [INFO ] After 231ms SMT Verify possible using 2 Read/Feed constraints in natural domain returned unsat :0 sat :85
TRAPS : Iteration 0
[2025-05-31 01:30:23] [INFO ] Deduced a trap composed of 6 places in 55 ms of which 1 ms to minimize.
[2025-05-31 01:30:23] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 80 ms
TRAPS : Iteration 1
[2025-05-31 01:30:25] [INFO ] Deduced a trap composed of 13 places in 126 ms of which 3 ms to minimize.
[2025-05-31 01:30:25] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 158 ms
[2025-05-31 01:30:26] [INFO ] Deduced a trap composed of 21 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:30:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 121 ms
[2025-05-31 01:30:27] [INFO ] Deduced a trap composed of 11 places in 61 ms of which 2 ms to minimize.
[2025-05-31 01:30:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
TRAPS : Iteration 2
[2025-05-31 01:30:27] [INFO ] Deduced a trap composed of 7 places in 65 ms of which 2 ms to minimize.
[2025-05-31 01:30:27] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 94 ms
[2025-05-31 01:30:29] [INFO ] Deduced a trap composed of 9 places in 64 ms of which 1 ms to minimize.
[2025-05-31 01:30:29] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 93 ms
TRAPS : Iteration 3
[2025-05-31 01:30:30] [INFO ] Deduced a trap composed of 8 places in 65 ms of which 1 ms to minimize.
[2025-05-31 01:30:30] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 97 ms
TRAPS : Iteration 4
[2025-05-31 01:30:33] [INFO ] Deduced a trap composed of 17 places in 88 ms of which 2 ms to minimize.
[2025-05-31 01:30:33] [INFO ] Deduced a trap composed of 12 places in 98 ms of which 2 ms to minimize.
[2025-05-31 01:30:33] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 238 ms
TRAPS : Iteration 5
[2025-05-31 01:30:36] [INFO ] Deduced a trap composed of 16 places in 57 ms of which 1 ms to minimize.
[2025-05-31 01:30:36] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 81 ms
TRAPS : Iteration 6
[2025-05-31 01:30:37] [INFO ] Deduced a trap composed of 19 places in 90 ms of which 2 ms to minimize.
[2025-05-31 01:30:37] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 116 ms
[2025-05-31 01:30:38] [INFO ] Deduced a trap composed of 8 places in 60 ms of which 2 ms to minimize.
[2025-05-31 01:30:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 87 ms
[2025-05-31 01:30:38] [INFO ] Deduced a trap composed of 19 places in 81 ms of which 2 ms to minimize.
[2025-05-31 01:30:38] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 110 ms
TRAPS : Iteration 7
[2025-05-31 01:30:39] [INFO ] Deduced a trap composed of 18 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:30:39] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 112 ms
TRAPS : Iteration 8
[2025-05-31 01:30:44] [INFO ] After 21333ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :85
[2025-05-31 01:30:44] [INFO ] After 22200ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :85
RANDOM walk for 40000 steps (558 resets) in 245 ms. (162 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (83 resets) in 195 ms. (204 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1160450 steps, run timeout after 3001 ms. (steps per millisecond=386 ) properties seen :0 out of 1
Probabilistic random walk after 1160450 steps, saw 162710 distinct states, run finished after 3001 ms. (steps per millisecond=386 ) properties seen :0
[2025-05-31 01:30:47] [INFO ] Invariant cache hit.
[2025-05-31 01:30:47] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 419 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:30:48] [INFO ] Deduced a trap composed of 16 places in 111 ms of which 3 ms to minimize.
[2025-05-31 01:30:48] [INFO ] Deduced a trap composed of 11 places in 135 ms of which 3 ms to minimize.
[2025-05-31 01:30:48] [INFO ] Deduced a trap composed of 17 places in 138 ms of which 3 ms to minimize.
[2025-05-31 01:30:49] [INFO ] Deduced a trap composed of 20 places in 97 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 4/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1038 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 1465ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 517 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 51 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 52 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (569 resets) in 129 ms. (307 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (95 resets) in 68 ms. (579 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1304678 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1304678 steps, saw 181580 distinct states, run finished after 3001 ms. (steps per millisecond=434 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:30:52] [INFO ] Computed 60 invariants in 7 ms
[2025-05-31 01:30:52] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:30:53] [INFO ] Deduced a trap composed of 12 places in 45 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 0/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/342 variables, 8/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 3/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:30:53] [INFO ] Deduced a trap composed of 18 places in 109 ms of which 3 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:30:53] [INFO ] Deduced a trap composed of 22 places in 109 ms of which 3 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 710 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 976ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1524 steps, including 1 resets, run visited all 1 properties in 7 ms. (steps per millisecond=217 )
Parikh walk visited 1 properties in 19 ms.
RANDOM walk for 2563 steps (33 resets) in 19 ms. (128 steps per ms) remains 0/1 properties
RANDOM walk for 525 steps (7 resets) in 7 ms. (65 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (549 resets) in 288 ms. (138 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (94 resets) in 110 ms. (360 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1204767 steps, run timeout after 3001 ms. (steps per millisecond=401 ) properties seen :0 out of 1
Probabilistic random walk after 1204767 steps, saw 168723 distinct states, run finished after 3001 ms. (steps per millisecond=401 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:30:57] [INFO ] Computed 60 invariants in 6 ms
[2025-05-31 01:30:57] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 295 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:30:57] [INFO ] Deduced a trap composed of 10 places in 73 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:30:57] [INFO ] Deduced a trap composed of 16 places in 82 ms of which 2 ms to minimize.
[2025-05-31 01:30:57] [INFO ] Deduced a trap composed of 19 places in 68 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 852ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 486 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 33 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 33 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (533 resets) in 144 ms. (275 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (93 resets) in 97 ms. (408 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 173 rows 231 cols
[2025-05-31 01:31:01] [INFO ] Computed 60 invariants in 6 ms
[2025-05-31 01:31:01] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 251 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:31:01] [INFO ] Deduced a trap composed of 7 places in 42 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/158 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/183 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/183 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/190 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 140/330 variables, 190/246 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 2/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 0/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/342 variables, 8/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 3/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:31:02] [INFO ] Deduced a trap composed of 17 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:31:02] [INFO ] Deduced a trap composed of 16 places in 95 ms of which 2 ms to minimize.
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 2/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/342 variables, 0/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:31:02] [INFO ] Deduced a trap composed of 17 places in 116 ms of which 3 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/343 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/375 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 1/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/375 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 29/404 variables, 29/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/404 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/404 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 777 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 1049ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 556 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 13 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 12 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:31:03] [INFO ] Invariant cache hit.
[2025-05-31 01:31:03] [INFO ] Implicit Places using invariants in 348 ms returned []
[2025-05-31 01:31:03] [INFO ] Invariant cache hit.
[2025-05-31 01:31:03] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:31:04] [INFO ] Implicit Places using invariants and state equation in 627 ms returned []
Implicit Place search using SMT with State Equation took 977 ms to find 0 implicit places.
[2025-05-31 01:31:04] [INFO ] Redundant transitions in 3 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:31:04] [INFO ] Invariant cache hit.
[2025-05-31 01:31:04] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:31:09] [INFO ] Deduced a trap composed of 15 places in 75 ms of which 2 ms to minimize.
[2025-05-31 01:31:09] [INFO ] Deduced a trap composed of 8 places in 101 ms of which 3 ms to minimize.
[2025-05-31 01:31:09] [INFO ] Deduced a trap composed of 10 places in 102 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:31:12] [INFO ] Deduced a trap composed of 17 places in 145 ms of which 4 ms to minimize.
[2025-05-31 01:31:12] [INFO ] Deduced a trap composed of 16 places in 123 ms of which 2 ms to minimize.
[2025-05-31 01:31:12] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:31:13] [INFO ] Deduced a trap composed of 6 places in 22 ms of which 0 ms to minimize.
[2025-05-31 01:31:14] [INFO ] Deduced a trap composed of 12 places in 62 ms of which 3 ms to minimize.
[2025-05-31 01:31:14] [INFO ] Deduced a trap composed of 12 places in 59 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 17693 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:31:31] [INFO ] Deduced a trap composed of 9 places in 83 ms of which 2 ms to minimize.
[2025-05-31 01:31:31] [INFO ] Deduced a trap composed of 14 places in 56 ms of which 1 ms to minimize.
[2025-05-31 01:31:33] [INFO ] Deduced a trap composed of 7 places in 76 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30024 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 47819ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 47822ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48826 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 16 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:31:51] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:31:52] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:31:52] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 22 ms returned sat
[2025-05-31 01:31:52] [INFO ] After 134ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:31:52] [INFO ] [Nat]Absence check using 36 positive place invariants in 12 ms returned sat
[2025-05-31 01:31:52] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 01:31:52] [INFO ] After 129ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:31:52] [INFO ] After 148ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:31:52] [INFO ] After 255ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 416 ms.
RANDOM walk for 40000 steps (535 resets) in 120 ms. (330 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (91 resets) in 57 ms. (689 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1301941 steps, run timeout after 3001 ms. (steps per millisecond=433 ) properties seen :0 out of 1
Probabilistic random walk after 1301941 steps, saw 180912 distinct states, run finished after 3001 ms. (steps per millisecond=433 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:31:55] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:31:55] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:31:55] [INFO ] Deduced a trap composed of 16 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:31:56] [INFO ] Deduced a trap composed of 18 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:31:56] [INFO ] Deduced a trap composed of 17 places in 58 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 476 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 754ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 58905 steps, including 205 resets, run visited all 1 properties in 150 ms. (steps per millisecond=392 )
Parikh walk visited 1 properties in 150 ms.
RANDOM walk for 40000 steps (532 resets) in 108 ms. (366 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 53 ms. (740 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1312288 steps, run timeout after 3001 ms. (steps per millisecond=437 ) properties seen :0 out of 1
Probabilistic random walk after 1312288 steps, saw 182917 distinct states, run finished after 3001 ms. (steps per millisecond=437 ) properties seen :0
[2025-05-31 01:31:59] [INFO ] Invariant cache hit.
[2025-05-31 01:31:59] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:31:59] [INFO ] Deduced a trap composed of 10 places in 62 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:31:59] [INFO ] Deduced a trap composed of 16 places in 70 ms of which 2 ms to minimize.
[2025-05-31 01:31:59] [INFO ] Deduced a trap composed of 24 places in 72 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 483 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 715ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 327 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 29 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (539 resets) in 128 ms. (310 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (88 resets) in 61 ms. (645 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1212698 steps, run timeout after 3001 ms. (steps per millisecond=404 ) properties seen :0 out of 1
Probabilistic random walk after 1212698 steps, saw 169869 distinct states, run finished after 3001 ms. (steps per millisecond=404 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:32:03] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:32:03] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:04] [INFO ] Deduced a trap composed of 12 places in 79 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 0/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/342 variables, 8/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 3/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 0/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 32/375 variables, 3/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 29/404 variables, 29/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/404 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/404 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 513 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 796ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 6736 steps, including 10 resets, run visited all 1 properties in 18 ms. (steps per millisecond=374 )
Parikh walk visited 1 properties in 17 ms.
RANDOM walk for 40000 steps (527 resets) in 126 ms. (314 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (87 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1237060 steps, run timeout after 3001 ms. (steps per millisecond=412 ) properties seen :0 out of 1
Probabilistic random walk after 1237060 steps, saw 173067 distinct states, run finished after 3001 ms. (steps per millisecond=412 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:32:07] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:32:07] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 223 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:07] [INFO ] Deduced a trap composed of 16 places in 56 ms of which 2 ms to minimize.
[2025-05-31 01:32:07] [INFO ] Deduced a trap composed of 17 places in 69 ms of which 1 ms to minimize.
[2025-05-31 01:32:07] [INFO ] Deduced a trap composed of 18 places in 43 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 444 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 679ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 117182 steps, including 460 resets, run visited all 1 properties in 289 ms. (steps per millisecond=405 )
Parikh walk visited 1 properties in 288 ms.
RANDOM walk for 40000 steps (539 resets) in 105 ms. (377 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (75 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1252138 steps, run timeout after 3001 ms. (steps per millisecond=417 ) properties seen :0 out of 1
Probabilistic random walk after 1252138 steps, saw 175045 distinct states, run finished after 3001 ms. (steps per millisecond=417 ) properties seen :0
[2025-05-31 01:32:11] [INFO ] Invariant cache hit.
[2025-05-31 01:32:11] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 223 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:11] [INFO ] Deduced a trap composed of 22 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:32:11] [INFO ] Deduced a trap composed of 17 places in 74 ms of which 2 ms to minimize.
[2025-05-31 01:32:11] [INFO ] Deduced a trap composed of 20 places in 53 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 481 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 709ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 356 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 22 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 22 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (539 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (87 resets) in 54 ms. (727 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1165954 steps, run timeout after 3001 ms. (steps per millisecond=388 ) properties seen :0 out of 1
Probabilistic random walk after 1165954 steps, saw 163481 distinct states, run finished after 3001 ms. (steps per millisecond=388 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:32:15] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:32:15] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 256 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:15] [INFO ] Deduced a trap composed of 7 places in 67 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/158 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/183 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/183 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/190 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 140/330 variables, 190/246 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 2/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:16] [INFO ] Deduced a trap composed of 11 places in 64 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 1/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/330 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 12/342 variables, 8/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 3/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 563 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 830ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1283 steps, including 1 resets, run visited all 1 properties in 12 ms. (steps per millisecond=106 )
Parikh walk visited 1 properties in 12 ms.
RANDOM walk for 40000 steps (541 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (79 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1320467 steps, run timeout after 3001 ms. (steps per millisecond=440 ) properties seen :0 out of 1
Probabilistic random walk after 1320467 steps, saw 184288 distinct states, run finished after 3001 ms. (steps per millisecond=440 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:32:19] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:32:19] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 304 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:20] [INFO ] Deduced a trap composed of 17 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:32:20] [INFO ] Deduced a trap composed of 19 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:32:20] [INFO ] Deduced a trap composed of 17 places in 59 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 469 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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
Finished Parikh walk after 44833 steps, including 133 resets, run visited all 1 properties in 108 ms. (steps per millisecond=415 )
Parikh walk visited 1 properties in 107 ms.
RANDOM walk for 40000 steps (536 resets) in 127 ms. (312 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (91 resets) in 61 ms. (645 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1246763 steps, run timeout after 3001 ms. (steps per millisecond=415 ) properties seen :0 out of 1
Probabilistic random walk after 1246763 steps, saw 174249 distinct states, run finished after 3001 ms. (steps per millisecond=415 ) properties seen :0
[2025-05-31 01:32:23] [INFO ] Invariant cache hit.
[2025-05-31 01:32:23] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:24] [INFO ] Deduced a trap composed of 21 places in 84 ms of which 2 ms to minimize.
[2025-05-31 01:32:24] [INFO ] Deduced a trap composed of 22 places in 93 ms of which 3 ms to minimize.
[2025-05-31 01:32:24] [INFO ] Deduced a trap composed of 20 places in 81 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 632 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 947ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 268 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 26 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 26 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (552 resets) in 107 ms. (370 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (82 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1211552 steps, run timeout after 3001 ms. (steps per millisecond=403 ) properties seen :0 out of 1
Probabilistic random walk after 1211552 steps, saw 169665 distinct states, run finished after 3001 ms. (steps per millisecond=403 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:32:27] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:32:27] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:28] [INFO ] Deduced a trap composed of 9 places in 58 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/158 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/183 variables, 17/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/183 variables, 0/49 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 7/190 variables, 7/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 140/330 variables, 190/246 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 2/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:28] [INFO ] Deduced a trap composed of 12 places in 61 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 1/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/330 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 12/342 variables, 8/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 3/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 477 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 827ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1141 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=285 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (539 resets) in 129 ms. (307 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (95 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1239755 steps, run timeout after 3001 ms. (steps per millisecond=413 ) properties seen :0 out of 1
Probabilistic random walk after 1239755 steps, saw 173394 distinct states, run finished after 3001 ms. (steps per millisecond=413 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:32:31] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:32:31] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 228 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:32] [INFO ] Deduced a trap composed of 17 places in 71 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 360 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 596ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 90410 steps, including 334 resets, run visited all 1 properties in 248 ms. (steps per millisecond=364 )
Parikh walk visited 1 properties in 248 ms.
RANDOM walk for 40000 steps (533 resets) in 127 ms. (312 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (95 resets) in 63 ms. (625 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1321841 steps, run timeout after 3001 ms. (steps per millisecond=440 ) properties seen :0 out of 1
Probabilistic random walk after 1321841 steps, saw 184502 distinct states, run finished after 3003 ms. (steps per millisecond=440 ) properties seen :0
[2025-05-31 01:32:35] [INFO ] Invariant cache hit.
[2025-05-31 01:32:35] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:35] [INFO ] Deduced a trap composed of 8 places in 53 ms of which 1 ms to minimize.
[2025-05-31 01:32:35] [INFO ] Deduced a trap composed of 7 places in 36 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 2/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:36] [INFO ] Deduced a trap composed of 13 places in 66 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 442 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 658ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1009 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=252 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (541 resets) in 103 ms. (384 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1304943 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1304943 steps, saw 181624 distinct states, run finished after 3001 ms. (steps per millisecond=434 ) properties seen :0
[2025-05-31 01:32:39] [INFO ] Invariant cache hit.
[2025-05-31 01:32:39] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 255 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 490ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 975 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 40000 steps (537 resets) in 100 ms. (396 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (87 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1325808 steps, run timeout after 3001 ms. (steps per millisecond=441 ) properties seen :0 out of 1
Probabilistic random walk after 1325808 steps, saw 185089 distinct states, run finished after 3001 ms. (steps per millisecond=441 ) properties seen :0
[2025-05-31 01:32:42] [INFO ] Invariant cache hit.
[2025-05-31 01:32:42] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:43] [INFO ] Deduced a trap composed of 16 places in 60 ms of which 2 ms to minimize.
[2025-05-31 01:32:43] [INFO ] Deduced a trap composed of 22 places in 61 ms of which 1 ms to minimize.
[2025-05-31 01:32:43] [INFO ] Deduced a trap composed of 19 places in 55 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 498 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 754ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 52375 steps, including 305 resets, run visited all 1 properties in 130 ms. (steps per millisecond=402 )
Parikh walk visited 1 properties in 130 ms.
RANDOM walk for 40000 steps (548 resets) in 109 ms. (363 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 1246429 steps, run timeout after 3001 ms. (steps per millisecond=415 ) properties seen :0 out of 1
Probabilistic random walk after 1246429 steps, saw 174216 distinct states, run finished after 3001 ms. (steps per millisecond=415 ) properties seen :0
[2025-05-31 01:32:46] [INFO ] Invariant cache hit.
[2025-05-31 01:32:46] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:47] [INFO ] Deduced a trap composed of 10 places in 71 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 635ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 838 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=279 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (548 resets) in 139 ms. (285 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (92 resets) in 65 ms. (606 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1244782 steps, run timeout after 3001 ms. (steps per millisecond=414 ) properties seen :0 out of 1
Probabilistic random walk after 1244782 steps, saw 174018 distinct states, run finished after 3001 ms. (steps per millisecond=414 ) properties seen :0
[2025-05-31 01:32:50] [INFO ] Invariant cache hit.
[2025-05-31 01:32:50] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 309 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:50] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:51] [INFO ] Deduced a trap composed of 16 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:32:51] [INFO ] Deduced a trap composed of 19 places in 88 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 543 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 856ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 25082 steps, including 119 resets, run visited all 1 properties in 64 ms. (steps per millisecond=391 )
Parikh walk visited 1 properties in 63 ms.
RANDOM walk for 40000 steps (530 resets) in 108 ms. (366 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1314148 steps, run timeout after 3001 ms. (steps per millisecond=437 ) properties seen :0 out of 1
Probabilistic random walk after 1314148 steps, saw 183243 distinct states, run finished after 3001 ms. (steps per millisecond=437 ) properties seen :0
[2025-05-31 01:32:54] [INFO ] Invariant cache hit.
[2025-05-31 01:32:54] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 320 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:54] [INFO ] Deduced a trap composed of 8 places in 69 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:55] [INFO ] Deduced a trap composed of 17 places in 91 ms of which 2 ms to minimize.
[2025-05-31 01:32:55] [INFO ] Deduced a trap composed of 19 places in 102 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 612 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 936ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 61208 steps, including 392 resets, run visited all 1 properties in 156 ms. (steps per millisecond=392 )
Parikh walk visited 1 properties in 156 ms.
RANDOM walk for 40000 steps (536 resets) in 125 ms. (317 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (98 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1257868 steps, run timeout after 3001 ms. (steps per millisecond=419 ) properties seen :0 out of 1
Probabilistic random walk after 1257868 steps, saw 175771 distinct states, run finished after 3001 ms. (steps per millisecond=419 ) properties seen :0
[2025-05-31 01:32:58] [INFO ] Invariant cache hit.
[2025-05-31 01:32:58] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 211 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:32:58] [INFO ] Deduced a trap composed of 8 places in 50 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 302 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 517ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 747 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=249 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (519 resets) in 105 ms. (377 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (80 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1333512 steps, run timeout after 3001 ms. (steps per millisecond=444 ) properties seen :0 out of 1
Probabilistic random walk after 1333512 steps, saw 186221 distinct states, run finished after 3001 ms. (steps per millisecond=444 ) properties seen :0
[2025-05-31 01:33:02] [INFO ] Invariant cache hit.
[2025-05-31 01:33:02] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 227 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:02] [INFO ] Deduced a trap composed of 19 places in 80 ms of which 3 ms to minimize.
[2025-05-31 01:33:02] [INFO ] Deduced a trap composed of 21 places in 94 ms of which 2 ms to minimize.
[2025-05-31 01:33:02] [INFO ] Deduced a trap composed of 24 places in 82 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 549 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 779ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 245 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 29 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 29 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (545 resets) in 160 ms. (248 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (85 resets) in 69 ms. (571 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1317479 steps, run timeout after 3001 ms. (steps per millisecond=439 ) properties seen :0 out of 1
Probabilistic random walk after 1317479 steps, saw 183806 distinct states, run finished after 3001 ms. (steps per millisecond=439 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:33:06] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:33:06] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:06] [INFO ] Deduced a trap composed of 12 places in 48 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:06] [INFO ] Deduced a trap composed of 16 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:33:06] [INFO ] Deduced a trap composed of 5 places in 49 ms of which 1 ms to minimize.
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 2/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/404 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/404 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 450 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 1/32 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:06] [INFO ] Deduced a trap composed of 7 places in 43 ms of which 1 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/158 variables, 1/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/158 variables, 0/33 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 25/183 variables, 17/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/183 variables, 0/50 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 7/190 variables, 7/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/190 variables, 0/57 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 140/330 variables, 190/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 2/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 1/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/330 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 12/342 variables, 8/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 3/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/342 variables, 2/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/342 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 1/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/343 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 32/375 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 1/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/375 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 29/404 variables, 29/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/404 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (OVERLAPS) 0/404 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 298 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: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 793ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 9085 steps, including 22 resets, run visited all 1 properties in 23 ms. (steps per millisecond=395 )
Parikh walk visited 1 properties in 22 ms.
RANDOM walk for 40000 steps (537 resets) in 107 ms. (370 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1334571 steps, run timeout after 3001 ms. (steps per millisecond=444 ) properties seen :0 out of 1
Probabilistic random walk after 1334571 steps, saw 186400 distinct states, run finished after 3001 ms. (steps per millisecond=444 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:33:09] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:33:09] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:10] [INFO ] Deduced a trap composed of 16 places in 59 ms of which 2 ms to minimize.
[2025-05-31 01:33:10] [INFO ] Deduced a trap composed of 21 places in 63 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 2/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 369 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 588ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 56090 steps, including 203 resets, run visited all 1 properties in 136 ms. (steps per millisecond=412 )
Parikh walk visited 1 properties in 135 ms.
RANDOM walk for 40000 steps (528 resets) in 101 ms. (392 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40001 steps (85 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1340669 steps, run timeout after 3001 ms. (steps per millisecond=446 ) properties seen :0 out of 1
Probabilistic random walk after 1340669 steps, saw 187305 distinct states, run finished after 3001 ms. (steps per millisecond=446 ) properties seen :0
[2025-05-31 01:33:13] [INFO ] Invariant cache hit.
[2025-05-31 01:33:13] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 228 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:14] [INFO ] Deduced a trap composed of 8 places in 64 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:14] [INFO ] Deduced a trap composed of 21 places in 71 ms of which 1 ms to minimize.
[2025-05-31 01:33:14] [INFO ] Deduced a trap composed of 20 places in 56 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 441 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 695ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 6783 steps, including 35 resets, run visited all 1 properties in 17 ms. (steps per millisecond=399 )
Parikh walk visited 1 properties in 17 ms.
RANDOM walk for 40000 steps (549 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (93 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1392018 steps, run timeout after 3001 ms. (steps per millisecond=463 ) properties seen :0 out of 1
Probabilistic random walk after 1392018 steps, saw 194422 distinct states, run finished after 3001 ms. (steps per millisecond=463 ) properties seen :0
[2025-05-31 01:33:17] [INFO ] Invariant cache hit.
[2025-05-31 01:33:17] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 252 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:17] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 1 ms to minimize.
[2025-05-31 01:33:17] [INFO ] Deduced a trap composed of 7 places in 56 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 2/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/45 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:18] [INFO ] Deduced a trap composed of 17 places in 83 ms of which 2 ms to minimize.
[2025-05-31 01:33:18] [INFO ] Deduced a trap composed of 17 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:33:18] [INFO ] Deduced a trap composed of 19 places in 72 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 3/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 300 constraints, problems are : Problem set: 0 solved, 1 unsolved in 637 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
After SMT, in 904ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 18458 steps, including 62 resets, run visited all 1 properties in 46 ms. (steps per millisecond=401 )
Parikh walk visited 1 properties in 45 ms.
RANDOM walk for 40000 steps (530 resets) in 142 ms. (279 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (84 resets) in 60 ms. (655 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1288852 steps, run timeout after 3001 ms. (steps per millisecond=429 ) properties seen :0 out of 1
Probabilistic random walk after 1288852 steps, saw 179453 distinct states, run finished after 3001 ms. (steps per millisecond=429 ) properties seen :0
[2025-05-31 01:33:21] [INFO ] Invariant cache hit.
[2025-05-31 01:33:21] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:22] [INFO ] Deduced a trap composed of 16 places in 78 ms of which 3 ms to minimize.
[2025-05-31 01:33:22] [INFO ] Deduced a trap composed of 17 places in 73 ms of which 2 ms to minimize.
[2025-05-31 01:33:22] [INFO ] Deduced a trap composed of 19 places in 53 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 581 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 847ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 806 steps, including 2 resets, run visited all 1 properties in 3 ms. (steps per millisecond=268 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (553 resets) in 103 ms. (384 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (86 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1186059 steps, run timeout after 3001 ms. (steps per millisecond=395 ) properties seen :0 out of 1
Probabilistic random walk after 1186059 steps, saw 166084 distinct states, run finished after 3001 ms. (steps per millisecond=395 ) properties seen :0
[2025-05-31 01:33:25] [INFO ] Invariant cache hit.
[2025-05-31 01:33:25] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:25] [INFO ] Deduced a trap composed of 19 places in 65 ms of which 2 ms to minimize.
[2025-05-31 01:33:26] [INFO ] Deduced a trap composed of 21 places in 96 ms of which 2 ms to minimize.
[2025-05-31 01:33:26] [INFO ] Deduced a trap composed of 24 places in 65 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 3/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 513 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 733ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 455 steps, including 1 resets, run visited all 1 properties in 3 ms. (steps per millisecond=151 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (550 resets) in 110 ms. (360 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1180282 steps, run timeout after 3001 ms. (steps per millisecond=393 ) properties seen :0 out of 1
Probabilistic random walk after 1180282 steps, saw 165317 distinct states, run finished after 3001 ms. (steps per millisecond=393 ) properties seen :0
[2025-05-31 01:33:29] [INFO ] Invariant cache hit.
[2025-05-31 01:33:29] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:29] [INFO ] Deduced a trap composed of 10 places in 55 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:29] [INFO ] Deduced a trap composed of 12 places in 71 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 411 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 677ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 407 steps, including 1 resets, run visited all 1 properties in 2 ms. (steps per millisecond=203 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (540 resets) in 106 ms. (373 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (79 resets) in 53 ms. (740 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1197134 steps, run timeout after 3001 ms. (steps per millisecond=398 ) properties seen :0 out of 1
Probabilistic random walk after 1197134 steps, saw 167587 distinct states, run finished after 3001 ms. (steps per millisecond=398 ) properties seen :0
[2025-05-31 01:33:32] [INFO ] Invariant cache hit.
[2025-05-31 01:33:32] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 534ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1401 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=350 )
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 (533 resets) in 110 ms. (360 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (89 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1283506 steps, run timeout after 3001 ms. (steps per millisecond=427 ) properties seen :0 out of 1
Probabilistic random walk after 1283506 steps, saw 178791 distinct states, run finished after 3001 ms. (steps per millisecond=427 ) properties seen :0
[2025-05-31 01:33:36] [INFO ] Invariant cache hit.
[2025-05-31 01:33:36] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 225 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:37] [INFO ] Deduced a trap composed of 16 places in 60 ms of which 2 ms to minimize.
[2025-05-31 01:33:37] [INFO ] Deduced a trap composed of 18 places in 64 ms of which 1 ms to minimize.
[2025-05-31 01:33:37] [INFO ] Deduced a trap composed of 17 places in 64 ms of which 1 ms to minimize.
[2025-05-31 01:33:37] [INFO ] Deduced a trap composed of 18 places in 48 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 4/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 constraints, problems are : Problem set: 0 solved, 1 unsolved in 533 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 763ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 488 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 18 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 18 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (568 resets) in 105 ms. (377 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 53 ms. (740 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1247396 steps, run timeout after 3001 ms. (steps per millisecond=415 ) properties seen :0 out of 1
Probabilistic random walk after 1247396 steps, saw 174387 distinct states, run finished after 3001 ms. (steps per millisecond=415 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:33:40] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 01:33:40] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:41] [INFO ] Deduced a trap composed of 16 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:33:41] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 1 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:41] [INFO ] Deduced a trap composed of 18 places in 47 ms of which 2 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 491 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 745ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 19594 steps, including 95 resets, run visited all 1 properties in 50 ms. (steps per millisecond=391 )
Parikh walk visited 1 properties in 49 ms.
RANDOM walk for 40000 steps (537 resets) in 100 ms. (396 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (86 resets) in 62 ms. (634 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1229071 steps, run timeout after 3001 ms. (steps per millisecond=409 ) properties seen :0 out of 1
Probabilistic random walk after 1229071 steps, saw 171968 distinct states, run finished after 3002 ms. (steps per millisecond=409 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:33:44] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:33:44] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 231 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:45] [INFO ] Deduced a trap composed of 15 places in 37 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 280 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 518ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 306 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 15 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (539 resets) in 123 ms. (322 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (89 resets) in 49 ms. (800 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1284200 steps, run timeout after 3001 ms. (steps per millisecond=427 ) properties seen :0 out of 1
Probabilistic random walk after 1284200 steps, saw 178857 distinct states, run finished after 3001 ms. (steps per millisecond=427 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:33:48] [INFO ] Computed 60 invariants in 6 ms
[2025-05-31 01:33:48] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 251 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 262 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 533ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 59919 steps, including 112 resets, run visited all 1 properties in 146 ms. (steps per millisecond=410 )
Parikh walk visited 1 properties in 145 ms.
RANDOM walk for 40000 steps (546 resets) in 101 ms. (392 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (85 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1131977 steps, run timeout after 3001 ms. (steps per millisecond=377 ) properties seen :0 out of 1
Probabilistic random walk after 1131977 steps, saw 158472 distinct states, run finished after 3001 ms. (steps per millisecond=377 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:33:52] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:33:52] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:52] [INFO ] Deduced a trap composed of 15 places in 35 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:52] [INFO ] Deduced a trap composed of 16 places in 54 ms of which 1 ms to minimize.
[2025-05-31 01:33:52] [INFO ] Deduced a trap composed of 18 places in 55 ms of which 1 ms to minimize.
[2025-05-31 01:33:52] [INFO ] Deduced a trap composed of 18 places in 42 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 3/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 717ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 33740 steps, including 109 resets, run visited all 1 properties in 83 ms. (steps per millisecond=406 )
Parikh walk visited 1 properties in 83 ms.
RANDOM walk for 40000 steps (547 resets) in 105 ms. (377 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1297044 steps, run timeout after 3001 ms. (steps per millisecond=432 ) properties seen :0 out of 1
Probabilistic random walk after 1297044 steps, saw 180357 distinct states, run finished after 3008 ms. (steps per millisecond=431 ) properties seen :0
[2025-05-31 01:33:56] [INFO ] Invariant cache hit.
[2025-05-31 01:33:56] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:56] [INFO ] Deduced a trap composed of 19 places in 67 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:33:56] [INFO ] Deduced a trap composed of 9 places in 81 ms of which 2 ms to minimize.
[2025-05-31 01:33:56] [INFO ] Deduced a trap composed of 8 places in 87 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 604 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 887ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 345 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 15 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (552 resets) in 126 ms. (314 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1208529 steps, run timeout after 3001 ms. (steps per millisecond=402 ) properties seen :0 out of 1
Probabilistic random walk after 1208529 steps, saw 169263 distinct states, run finished after 3001 ms. (steps per millisecond=402 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:34:00] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:34:00] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 236 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:00] [INFO ] Deduced a trap composed of 16 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:34:01] [INFO ] Deduced a trap composed of 16 places in 54 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:01] [INFO ] Deduced a trap composed of 18 places in 43 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 455 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 697ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 19413 steps, including 64 resets, run visited all 1 properties in 48 ms. (steps per millisecond=404 )
Parikh walk visited 1 properties in 48 ms.
RANDOM walk for 40000 steps (539 resets) in 103 ms. (384 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (85 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1278843 steps, run timeout after 3001 ms. (steps per millisecond=426 ) properties seen :0 out of 1
Probabilistic random walk after 1278843 steps, saw 178280 distinct states, run finished after 3001 ms. (steps per millisecond=426 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:34:04] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:34:04] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:04] [INFO ] Deduced a trap composed of 15 places in 38 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 284 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 510ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 33070 steps, including 103 resets, run visited all 1 properties in 81 ms. (steps per millisecond=408 )
Parikh walk visited 1 properties in 81 ms.
RANDOM walk for 40000 steps (537 resets) in 101 ms. (392 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (86 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1214214 steps, run timeout after 3001 ms. (steps per millisecond=404 ) properties seen :0 out of 1
Probabilistic random walk after 1214214 steps, saw 170089 distinct states, run finished after 3001 ms. (steps per millisecond=404 ) properties seen :0
[2025-05-31 01:34:07] [INFO ] Invariant cache hit.
[2025-05-31 01:34:07] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:08] [INFO ] Deduced a trap composed of 19 places in 52 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:08] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 2 ms to minimize.
[2025-05-31 01:34:08] [INFO ] Deduced a trap composed of 17 places in 54 ms of which 2 ms to minimize.
[2025-05-31 01:34:08] [INFO ] Deduced a trap composed of 18 places in 40 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 3/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:08] [INFO ] Deduced a trap composed of 6 places in 54 ms of which 2 ms to minimize.
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 1/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 300 constraints, problems are : Problem set: 0 solved, 1 unsolved in 560 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
After SMT, in 793ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 272 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 14 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (545 resets) in 135 ms. (294 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (88 resets) in 54 ms. (727 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1286321 steps, run timeout after 3001 ms. (steps per millisecond=428 ) properties seen :0 out of 1
Probabilistic random walk after 1286321 steps, saw 179141 distinct states, run finished after 3001 ms. (steps per millisecond=428 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:34:12] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:34:12] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 255 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:12] [INFO ] Deduced a trap composed of 16 places in 53 ms of which 1 ms to minimize.
[2025-05-31 01:34:12] [INFO ] Deduced a trap composed of 16 places in 53 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:12] [INFO ] Deduced a trap composed of 18 places in 40 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 451 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 713ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 9620 steps, including 28 resets, run visited all 1 properties in 36 ms. (steps per millisecond=267 )
Parikh walk visited 1 properties in 37 ms.
RANDOM walk for 40000 steps (544 resets) in 148 ms. (268 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (89 resets) in 73 ms. (540 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1271889 steps, run timeout after 3001 ms. (steps per millisecond=423 ) properties seen :0 out of 1
Probabilistic random walk after 1271889 steps, saw 177516 distinct states, run finished after 3001 ms. (steps per millisecond=423 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:34:15] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:34:15] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:16] [INFO ] Deduced a trap composed of 15 places in 37 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 501ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 23315 steps, including 79 resets, run visited all 1 properties in 87 ms. (steps per millisecond=267 )
Parikh walk visited 1 properties in 91 ms.
RANDOM walk for 40000 steps (542 resets) in 122 ms. (325 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 54 ms. (727 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1203009 steps, run timeout after 3001 ms. (steps per millisecond=400 ) properties seen :0 out of 1
Probabilistic random walk after 1203009 steps, saw 168488 distinct states, run finished after 3001 ms. (steps per millisecond=400 ) properties seen :0
[2025-05-31 01:34:19] [INFO ] Invariant cache hit.
[2025-05-31 01:34:19] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:19] [INFO ] Deduced a trap composed of 16 places in 59 ms of which 1 ms to minimize.
[2025-05-31 01:34:19] [INFO ] Deduced a trap composed of 18 places in 97 ms of which 2 ms to minimize.
[2025-05-31 01:34:19] [INFO ] Deduced a trap composed of 19 places in 64 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 503 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:20] [INFO ] Deduced a trap composed of 19 places in 66 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 3/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/202 variables, 0/64 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 174/376 variables, 202/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:20] [INFO ] Deduced a trap composed of 8 places in 73 ms of which 2 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 1/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/376 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 30/406 variables, 30/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 300 constraints, problems are : Problem set: 0 solved, 1 unsolved in 435 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
After SMT, in 952ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 1097 steps, including 1 resets, run visited all 1 properties in 4 ms. (steps per millisecond=274 )
Parikh walk visited 1 properties in 3 ms.
RANDOM walk for 40000 steps (534 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (91 resets) in 63 ms. (625 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1198413 steps, run timeout after 3001 ms. (steps per millisecond=399 ) properties seen :0 out of 1
Probabilistic random walk after 1198413 steps, saw 167774 distinct states, run finished after 3001 ms. (steps per millisecond=399 ) properties seen :0
[2025-05-31 01:34:23] [INFO ] Invariant cache hit.
[2025-05-31 01:34:23] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:23] [INFO ] Deduced a trap composed of 17 places in 93 ms of which 1 ms to minimize.
[2025-05-31 01:34:23] [INFO ] Deduced a trap composed of 18 places in 84 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 419 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:24] [INFO ] Deduced a trap composed of 19 places in 52 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 2/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/202 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 174/376 variables, 202/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 2/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:24] [INFO ] Deduced a trap composed of 16 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:34:24] [INFO ] Deduced a trap composed of 18 places in 58 ms of which 1 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 2/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/376 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 30/406 variables, 30/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/406 variables, 0/300 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 300 constraints, problems are : Problem set: 0 solved, 1 unsolved in 442 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 5/5 constraints]
After SMT, in 866ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 243 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 14 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 14 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (523 resets) in 117 ms. (338 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (91 resets) in 49 ms. (800 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1187996 steps, run timeout after 3001 ms. (steps per millisecond=395 ) properties seen :0 out of 1
Probabilistic random walk after 1187996 steps, saw 166311 distinct states, run finished after 3001 ms. (steps per millisecond=395 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:34:27] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:34:27] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:28] [INFO ] Deduced a trap composed of 17 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:34:28] [INFO ] Deduced a trap composed of 17 places in 60 ms of which 1 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:34:28] [INFO ] Deduced a trap composed of 17 places in 67 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 518 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 814ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 201 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:34:28] [INFO ] Invariant cache hit.
[2025-05-31 01:34:28] [INFO ] Implicit Places using invariants in 258 ms returned []
[2025-05-31 01:34:28] [INFO ] Invariant cache hit.
[2025-05-31 01:34:29] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:34:29] [INFO ] Implicit Places using invariants and state equation in 495 ms returned []
Implicit Place search using SMT with State Equation took 760 ms to find 0 implicit places.
[2025-05-31 01:34:29] [INFO ] Redundant transitions in 2 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:34:29] [INFO ] Invariant cache hit.
[2025-05-31 01:34:29] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:34:33] [INFO ] Deduced a trap composed of 15 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:34:34] [INFO ] Deduced a trap composed of 8 places in 86 ms of which 3 ms to minimize.
[2025-05-31 01:34:34] [INFO ] Deduced a trap composed of 10 places in 97 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:34:36] [INFO ] Deduced a trap composed of 17 places in 96 ms of which 2 ms to minimize.
[2025-05-31 01:34:36] [INFO ] Deduced a trap composed of 16 places in 90 ms of which 1 ms to minimize.
[2025-05-31 01:34:36] [INFO ] Deduced a trap composed of 6 places in 38 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:34:38] [INFO ] Deduced a trap composed of 6 places in 18 ms of which 0 ms to minimize.
[2025-05-31 01:34:38] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:34:38] [INFO ] Deduced a trap composed of 12 places in 59 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 16299 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:34:54] [INFO ] Deduced a trap composed of 9 places in 74 ms of which 2 ms to minimize.
[2025-05-31 01:34:54] [INFO ] Deduced a trap composed of 14 places in 51 ms of which 1 ms to minimize.
[2025-05-31 01:34:56] [INFO ] Deduced a trap composed of 7 places in 64 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30012 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 46388ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 46391ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47177 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 12 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:35:15] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:35:15] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:35:16] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 19 ms returned sat
[2025-05-31 01:35:16] [INFO ] After 94ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:35:16] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:35:16] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:35:16] [INFO ] After 138ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:35:16] [INFO ] After 155ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:35:16] [INFO ] After 259ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 375 ms.
RANDOM walk for 40000 steps (536 resets) in 133 ms. (298 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 1283961 steps, run timeout after 3001 ms. (steps per millisecond=427 ) properties seen :0 out of 1
Probabilistic random walk after 1283961 steps, saw 178830 distinct states, run finished after 3001 ms. (steps per millisecond=427 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:35:19] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:35:19] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:35:19] [INFO ] Deduced a trap composed of 16 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:35:19] [INFO ] Deduced a trap composed of 18 places in 60 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 438 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:35:19] [INFO ] Deduced a trap composed of 15 places in 36 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 2/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/202 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 174/376 variables, 202/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 2/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 319 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 763ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 226 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 12 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (557 resets) in 110 ms. (360 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (84 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1292857 steps, run timeout after 3001 ms. (steps per millisecond=430 ) properties seen :0 out of 1
Probabilistic random walk after 1292857 steps, saw 179926 distinct states, run finished after 3001 ms. (steps per millisecond=430 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:35:23] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 01:35:23] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 373 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 623ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 9994 steps, including 19 resets, run visited all 1 properties in 38 ms. (steps per millisecond=263 )
Parikh walk visited 1 properties in 37 ms.
RANDOM walk for 40000 steps (540 resets) in 165 ms. (240 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (86 resets) in 85 ms. (465 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1223826 steps, run timeout after 3001 ms. (steps per millisecond=407 ) properties seen :0 out of 1
Probabilistic random walk after 1223826 steps, saw 171313 distinct states, run finished after 3002 ms. (steps per millisecond=407 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:35:27] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:35:27] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 230 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:35:27] [INFO ] Deduced a trap composed of 15 places in 34 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 256 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 504ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 75146 steps, including 247 resets, run visited all 1 properties in 182 ms. (steps per millisecond=412 )
Parikh walk visited 1 properties in 182 ms.
RANDOM walk for 40000 steps (534 resets) in 108 ms. (366 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (84 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1296827 steps, run timeout after 3001 ms. (steps per millisecond=432 ) properties seen :0 out of 1
Probabilistic random walk after 1296827 steps, saw 180336 distinct states, run finished after 3003 ms. (steps per millisecond=431 ) properties seen :0
[2025-05-31 01:35:30] [INFO ] Invariant cache hit.
[2025-05-31 01:35:30] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 225 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:35:31] [INFO ] Deduced a trap composed of 19 places in 52 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:35:31] [INFO ] Deduced a trap composed of 8 places in 62 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 374 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 604ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 290 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 12 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (556 resets) in 145 ms. (273 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (84 resets) in 50 ms. (784 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1286936 steps, run timeout after 3001 ms. (steps per millisecond=428 ) properties seen :0 out of 1
Probabilistic random walk after 1286936 steps, saw 179224 distinct states, run finished after 3001 ms. (steps per millisecond=428 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:35:34] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:35:34] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:35:35] [INFO ] Deduced a trap composed of 5 places in 53 ms of which 1 ms to minimize.
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 1/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/404 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/404 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 295 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: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 606ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 167 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 3 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:35:35] [INFO ] Invariant cache hit.
[2025-05-31 01:35:35] [INFO ] Implicit Places using invariants in 257 ms returned []
[2025-05-31 01:35:35] [INFO ] Invariant cache hit.
[2025-05-31 01:35:36] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:35:36] [INFO ] Implicit Places using invariants and state equation in 502 ms returned []
Implicit Place search using SMT with State Equation took 761 ms to find 0 implicit places.
[2025-05-31 01:35:36] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:35:36] [INFO ] Invariant cache hit.
[2025-05-31 01:35:36] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:35:40] [INFO ] Deduced a trap composed of 15 places in 77 ms of which 2 ms to minimize.
[2025-05-31 01:35:41] [INFO ] Deduced a trap composed of 8 places in 72 ms of which 2 ms to minimize.
[2025-05-31 01:35:41] [INFO ] Deduced a trap composed of 10 places in 83 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:35:43] [INFO ] Deduced a trap composed of 17 places in 83 ms of which 2 ms to minimize.
[2025-05-31 01:35:43] [INFO ] Deduced a trap composed of 16 places in 92 ms of which 3 ms to minimize.
[2025-05-31 01:35:43] [INFO ] Deduced a trap composed of 6 places in 35 ms of which 5 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:35:45] [INFO ] Deduced a trap composed of 6 places in 21 ms of which 0 ms to minimize.
[2025-05-31 01:35:45] [INFO ] Deduced a trap composed of 12 places in 59 ms of which 2 ms to minimize.
[2025-05-31 01:35:45] [INFO ] Deduced a trap composed of 12 places in 60 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 16254 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:36:01] [INFO ] Deduced a trap composed of 9 places in 72 ms of which 2 ms to minimize.
[2025-05-31 01:36:01] [INFO ] Deduced a trap composed of 14 places in 52 ms of which 1 ms to minimize.
[2025-05-31 01:36:03] [INFO ] Deduced a trap composed of 7 places in 78 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30019 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 46382ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 46385ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 47158 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 12 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:36:22] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:36:22] [INFO ] [Real]Absence check using 36 positive place invariants in 14 ms returned sat
[2025-05-31 01:36:22] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 25 ms returned sat
[2025-05-31 01:36:22] [INFO ] After 127ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:36:23] [INFO ] [Nat]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 01:36:23] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 26 ms returned sat
[2025-05-31 01:36:23] [INFO ] After 176ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:36:23] [INFO ] After 197ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:36:23] [INFO ] After 335ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 481 ms.
RANDOM walk for 40000 steps (531 resets) in 148 ms. (268 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (82 resets) in 72 ms. (548 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1228771 steps, run timeout after 3001 ms. (steps per millisecond=409 ) properties seen :0 out of 1
Probabilistic random walk after 1228771 steps, saw 171932 distinct states, run finished after 3001 ms. (steps per millisecond=409 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:36:26] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:36:26] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 225 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:26] [INFO ] Deduced a trap composed of 15 places in 36 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:26] [INFO ] Deduced a trap composed of 16 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:36:26] [INFO ] Deduced a trap composed of 18 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:36:26] [INFO ] Deduced a trap composed of 19 places in 43 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 3/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 constraints, problems are : Problem set: 0 solved, 1 unsolved in 471 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 703ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 184 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 13 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (549 resets) in 99 ms. (400 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1313238 steps, run timeout after 3001 ms. (steps per millisecond=437 ) properties seen :0 out of 1
Probabilistic random walk after 1313238 steps, saw 183092 distinct states, run finished after 3001 ms. (steps per millisecond=437 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:36:30] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:36:30] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 244 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:30] [INFO ] Deduced a trap composed of 16 places in 51 ms of which 1 ms to minimize.
[2025-05-31 01:36:30] [INFO ] Deduced a trap composed of 16 places in 53 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:30] [INFO ] Deduced a trap composed of 18 places in 38 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 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: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 768ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 15485 steps, including 52 resets, run visited all 1 properties in 36 ms. (steps per millisecond=430 )
Parikh walk visited 1 properties in 36 ms.
RANDOM walk for 40000 steps (528 resets) in 119 ms. (333 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (90 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1061972 steps, run timeout after 3001 ms. (steps per millisecond=353 ) properties seen :0 out of 1
Probabilistic random walk after 1061972 steps, saw 149420 distinct states, run finished after 3001 ms. (steps per millisecond=353 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:36:34] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:36:34] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:34] [INFO ] Deduced a trap composed of 16 places in 97 ms of which 3 ms to minimize.
[2025-05-31 01:36:34] [INFO ] Deduced a trap composed of 19 places in 94 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 296 constraints, problems are : Problem set: 0 solved, 1 unsolved in 550 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:34] [INFO ] Deduced a trap composed of 15 places in 52 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 2/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/202 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 174/376 variables, 202/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 2/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:35] [INFO ] Deduced a trap composed of 18 places in 79 ms of which 3 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 1/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 constraints, problems are : Problem set: 0 solved, 1 unsolved in 532 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 1091ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 49268 steps, including 127 resets, run visited all 1 properties in 198 ms. (steps per millisecond=248 )
Parikh walk visited 1 properties in 197 ms.
RANDOM walk for 40000 steps (540 resets) in 172 ms. (231 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (88 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1232916 steps, run timeout after 3001 ms. (steps per millisecond=410 ) properties seen :0 out of 1
Probabilistic random walk after 1232916 steps, saw 172510 distinct states, run finished after 3001 ms. (steps per millisecond=410 ) properties seen :0
[2025-05-31 01:36:38] [INFO ] Invariant cache hit.
[2025-05-31 01:36:38] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 340 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:38] [INFO ] Deduced a trap composed of 19 places in 70 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:39] [INFO ] Deduced a trap composed of 8 places in 64 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 441 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 787ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 212 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 13 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (543 resets) in 157 ms. (253 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (90 resets) in 67 ms. (588 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1318930 steps, run timeout after 3001 ms. (steps per millisecond=439 ) properties seen :0 out of 1
Probabilistic random walk after 1318930 steps, saw 184065 distinct states, run finished after 3001 ms. (steps per millisecond=439 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:36:42] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:36:42] [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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 325 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 122/123 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/123 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 35/158 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/158 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/183 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/183 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 7/190 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:43] [INFO ] Deduced a trap composed of 15 places in 102 ms of which 2 ms to minimize.
[2025-05-31 01:36:43] [INFO ] Deduced a trap composed of 17 places in 114 ms of which 2 ms to minimize.
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 2/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:43] [INFO ] Deduced a trap composed of 18 places in 86 ms of which 1 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/343 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 32/375 variables, 3/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/375 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 29/404 variables, 29/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 0/404 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 812 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 1161ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 2617 steps, including 11 resets, run visited all 1 properties in 12 ms. (steps per millisecond=218 )
Parikh walk visited 1 properties in 11 ms.
RANDOM walk for 40000 steps (542 resets) in 216 ms. (184 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 78 ms. (506 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1222515 steps, run timeout after 3001 ms. (steps per millisecond=407 ) properties seen :0 out of 1
Probabilistic random walk after 1222515 steps, saw 171162 distinct states, run finished after 3001 ms. (steps per millisecond=407 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:36:46] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:36:46] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:47] [INFO ] Deduced a trap composed of 15 places in 50 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:47] [INFO ] Deduced a trap composed of 17 places in 61 ms of which 2 ms to minimize.
[2025-05-31 01:36:47] [INFO ] Deduced a trap composed of 18 places in 65 ms of which 2 ms to minimize.
[2025-05-31 01:36:47] [INFO ] Deduced a trap composed of 19 places in 43 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 3/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 constraints, problems are : Problem set: 0 solved, 1 unsolved in 636 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 877ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 3449 steps, including 10 resets, run visited all 1 properties in 15 ms. (steps per millisecond=229 )
Parikh walk visited 1 properties in 15 ms.
RANDOM walk for 40000 steps (545 resets) in 193 ms. (206 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 82 ms. (481 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1120876 steps, run timeout after 3001 ms. (steps per millisecond=373 ) properties seen :0 out of 1
Probabilistic random walk after 1120876 steps, saw 156836 distinct states, run finished after 3001 ms. (steps per millisecond=373 ) properties seen :0
[2025-05-31 01:36:50] [INFO ] Invariant cache hit.
[2025-05-31 01:36:50] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:51] [INFO ] Deduced a trap composed of 19 places in 62 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:51] [INFO ] Deduced a trap composed of 16 places in 84 ms of which 2 ms to minimize.
[2025-05-31 01:36:51] [INFO ] Deduced a trap composed of 18 places in 96 ms of which 2 ms to minimize.
[2025-05-31 01:36:51] [INFO ] Deduced a trap composed of 18 places in 75 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 3/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/269 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/299 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 299 constraints, problems are : Problem set: 0 solved, 1 unsolved in 726 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 4/4 constraints]
After SMT, in 942ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 13145 steps, including 74 resets, run visited all 1 properties in 58 ms. (steps per millisecond=226 )
Parikh walk visited 1 properties in 58 ms.
RANDOM walk for 40000 steps (553 resets) in 199 ms. (200 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 84 ms. (470 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1231176 steps, run timeout after 3001 ms. (steps per millisecond=410 ) properties seen :0 out of 1
Probabilistic random walk after 1231176 steps, saw 172267 distinct states, run finished after 3001 ms. (steps per millisecond=410 ) properties seen :0
[2025-05-31 01:36:54] [INFO ] Invariant cache hit.
[2025-05-31 01:36:54] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 302 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:55] [INFO ] Deduced a trap composed of 19 places in 72 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:55] [INFO ] Deduced a trap composed of 7 places in 55 ms of which 2 ms to minimize.
At refinement iteration 13 (INCLUDED_ONLY) 0/406 variables, 1/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/297 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 297 constraints, problems are : Problem set: 0 solved, 1 unsolved in 526 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 2/2 constraints]
After SMT, in 832ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 9108 steps, including 308 resets, run visited all 1 properties in 38 ms. (steps per millisecond=239 )
Parikh walk visited 1 properties in 39 ms.
RANDOM walk for 40000 steps (538 resets) in 169 ms. (235 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (85 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1215788 steps, run timeout after 3001 ms. (steps per millisecond=405 ) properties seen :0 out of 1
Probabilistic random walk after 1215788 steps, saw 170281 distinct states, run finished after 3001 ms. (steps per millisecond=405 ) properties seen :0
[2025-05-31 01:36:58] [INFO ] Invariant cache hit.
[2025-05-31 01:36:58] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 225 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:59] [INFO ] Deduced a trap composed of 19 places in 70 ms of which 2 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:36:59] [INFO ] Deduced a trap composed of 17 places in 43 ms of which 2 ms to minimize.
[2025-05-31 01:36:59] [INFO ] Deduced a trap composed of 18 places in 42 ms of which 1 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 513 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 742ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 2829 steps, including 14 resets, run visited all 1 properties in 8 ms. (steps per millisecond=353 )
Parikh walk visited 1 properties in 7 ms.
RANDOM walk for 40000 steps (545 resets) in 135 ms. (294 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (92 resets) in 62 ms. (634 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1305556 steps, run timeout after 3001 ms. (steps per millisecond=435 ) properties seen :0 out of 1
Probabilistic random walk after 1305556 steps, saw 181764 distinct states, run finished after 3001 ms. (steps per millisecond=435 ) properties seen :0
[2025-05-31 01:37:02] [INFO ] Invariant cache hit.
[2025-05-31 01:37:02] [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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 0/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 18/202 variables, 17/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 123/124 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/124 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 60/184 variables, 36/43 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:37:03] [INFO ] Deduced a trap composed of 19 places in 73 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/184 variables, 1/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/184 variables, 0/44 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 18/202 variables, 17/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:37:03] [INFO ] Deduced a trap composed of 17 places in 61 ms of which 2 ms to minimize.
[2025-05-31 01:37:03] [INFO ] Deduced a trap composed of 19 places in 84 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 2/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 606 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 925ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 443 steps, including 1 resets, run visited all 1 properties in 2 ms. (steps per millisecond=221 )
Parikh walk visited 1 properties in 2 ms.
RANDOM walk for 40000 steps (535 resets) in 191 ms. (208 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (91 resets) in 80 ms. (493 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1303995 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1303995 steps, saw 181306 distinct states, run finished after 3004 ms. (steps per millisecond=434 ) properties seen :0
[2025-05-31 01:37:06] [INFO ] Invariant cache hit.
[2025-05-31 01:37:06] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:37:06] [INFO ] Deduced a trap composed of 12 places in 76 ms of which 2 ms to minimize.
[2025-05-31 01:37:07] [INFO ] Deduced a trap composed of 10 places in 58 ms of which 1 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 2/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 174/376 variables, 202/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 2/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/296 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 296 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: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:37:07] [INFO ] Deduced a trap composed of 12 places in 41 ms of which 1 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 1/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/177 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 25/202 variables, 23/61 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/202 variables, 2/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/202 variables, 0/63 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 174/376 variables, 202/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 2/267 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/376 variables, 1/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/376 variables, 0/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 30/406 variables, 30/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 0/406 variables, 0/298 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 298 constraints, problems are : Problem set: 0 solved, 1 unsolved in 444 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 3/3 constraints]
After SMT, in 1003ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 557 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 19 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 20 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (527 resets) in 178 ms. (223 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (89 resets) in 60 ms. (655 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1243604 steps, run timeout after 3001 ms. (steps per millisecond=414 ) properties seen :0 out of 1
Probabilistic random walk after 1243604 steps, saw 173889 distinct states, run finished after 3001 ms. (steps per millisecond=414 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:37:11] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:37:11] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2025-05-31 01:37:11] [INFO ] Deduced a trap composed of 7 places in 62 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/190 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 140/330 variables, 190/246 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 2/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 500 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 1/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/181 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 9/190 variables, 9/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/190 variables, 0/56 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 140/330 variables, 190/246 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 2/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/330 variables, 0/249 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 12/342 variables, 8/257 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 3/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/342 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (OVERLAPS) 1/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/343 variables, 0/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (OVERLAPS) 32/375 variables, 3/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 1/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/375 variables, 0/266 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 29/404 variables, 29/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/404 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 0/404 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 427 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 934ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 465 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 6 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 6 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:37:12] [INFO ] Invariant cache hit.
[2025-05-31 01:37:13] [INFO ] Implicit Places using invariants in 432 ms returned []
[2025-05-31 01:37:13] [INFO ] Invariant cache hit.
[2025-05-31 01:37:13] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:37:13] [INFO ] Implicit Places using invariants and state equation in 673 ms returned []
Implicit Place search using SMT with State Equation took 1119 ms to find 0 implicit places.
[2025-05-31 01:37:13] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:37:13] [INFO ] Invariant cache hit.
[2025-05-31 01:37:13] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:37:19] [INFO ] Deduced a trap composed of 15 places in 95 ms of which 2 ms to minimize.
[2025-05-31 01:37:19] [INFO ] Deduced a trap composed of 8 places in 91 ms of which 3 ms to minimize.
[2025-05-31 01:37:19] [INFO ] Deduced a trap composed of 10 places in 101 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:37:21] [INFO ] Deduced a trap composed of 17 places in 118 ms of which 3 ms to minimize.
[2025-05-31 01:37:21] [INFO ] Deduced a trap composed of 16 places in 138 ms of which 3 ms to minimize.
[2025-05-31 01:37:22] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:37:23] [INFO ] Deduced a trap composed of 6 places in 34 ms of which 1 ms to minimize.
[2025-05-31 01:37:24] [INFO ] Deduced a trap composed of 12 places in 84 ms of which 2 ms to minimize.
[2025-05-31 01:37:24] [INFO ] Deduced a trap composed of 12 places in 89 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 19297 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:37:43] [INFO ] Deduced a trap composed of 9 places in 86 ms of which 2 ms to minimize.
[2025-05-31 01:37:43] [INFO ] Deduced a trap composed of 14 places in 56 ms of which 2 ms to minimize.
[2025-05-31 01:37:45] [INFO ] Deduced a trap composed of 7 places in 70 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 49437ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 49440ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 50579 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 10 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:38:03] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:38:03] [INFO ] [Real]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 01:38:03] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 25 ms returned sat
[2025-05-31 01:38:03] [INFO ] After 145ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:38:03] [INFO ] [Nat]Absence check using 36 positive place invariants in 19 ms returned sat
[2025-05-31 01:38:03] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 42 ms returned sat
[2025-05-31 01:38:03] [INFO ] After 248ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:38:03] [INFO ] After 265ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:38:03] [INFO ] After 426ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 592 ms.
RANDOM walk for 4 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/1 properties
RANDOM walk for 40000 steps (512 resets) in 150 ms. (264 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (95 resets) in 66 ms. (597 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1227066 steps, run timeout after 3001 ms. (steps per millisecond=408 ) properties seen :0 out of 1
Probabilistic random walk after 1227066 steps, saw 171734 distinct states, run finished after 3002 ms. (steps per millisecond=408 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:38:07] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:38:07] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 335 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 632ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 294 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 12 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (550 resets) in 103 ms. (384 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (87 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1312299 steps, run timeout after 3001 ms. (steps per millisecond=437 ) properties seen :0 out of 1
Probabilistic random walk after 1312299 steps, saw 182916 distinct states, run finished after 3001 ms. (steps per millisecond=437 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:38:11] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:38:11] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 402 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 687ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 285 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:38:12] [INFO ] Invariant cache hit.
[2025-05-31 01:38:12] [INFO ] Implicit Places using invariants in 266 ms returned []
[2025-05-31 01:38:12] [INFO ] Invariant cache hit.
[2025-05-31 01:38:12] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:38:12] [INFO ] Implicit Places using invariants and state equation in 395 ms returned []
Implicit Place search using SMT with State Equation took 665 ms to find 0 implicit places.
[2025-05-31 01:38:12] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:38:12] [INFO ] Invariant cache hit.
[2025-05-31 01:38:12] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:38:16] [INFO ] Deduced a trap composed of 15 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:38:17] [INFO ] Deduced a trap composed of 8 places in 80 ms of which 1 ms to minimize.
[2025-05-31 01:38:17] [INFO ] Deduced a trap composed of 10 places in 87 ms of which 1 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:38:19] [INFO ] Deduced a trap composed of 17 places in 96 ms of which 2 ms to minimize.
[2025-05-31 01:38:19] [INFO ] Deduced a trap composed of 16 places in 145 ms of which 3 ms to minimize.
[2025-05-31 01:38:19] [INFO ] Deduced a trap composed of 6 places in 42 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:38:21] [INFO ] Deduced a trap composed of 6 places in 23 ms of which 1 ms to minimize.
[2025-05-31 01:38:22] [INFO ] Deduced a trap composed of 12 places in 80 ms of which 2 ms to minimize.
[2025-05-31 01:38:22] [INFO ] Deduced a trap composed of 12 places in 86 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 16060 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:38:36] [INFO ] Deduced a trap composed of 9 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:38:37] [INFO ] Deduced a trap composed of 14 places in 69 ms of which 1 ms to minimize.
[2025-05-31 01:38:38] [INFO ] Deduced a trap composed of 7 places in 75 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30017 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 46189ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 46192ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46867 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 14 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:38:58] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:38:58] [INFO ] [Real]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:38:59] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:38:59] [INFO ] After 103ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:38:59] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:38:59] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:38:59] [INFO ] After 143ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:38:59] [INFO ] After 164ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:38:59] [INFO ] After 277ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 402 ms.
RANDOM walk for 40000 steps (539 resets) in 130 ms. (305 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (91 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1315635 steps, run timeout after 3001 ms. (steps per millisecond=438 ) properties seen :0 out of 1
Probabilistic random walk after 1315635 steps, saw 183476 distinct states, run finished after 3001 ms. (steps per millisecond=438 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:39:02] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:39:02] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 223 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 574ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 406 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 15 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (565 resets) in 138 ms. (287 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (92 resets) in 73 ms. (540 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1276973 steps, run timeout after 3001 ms. (steps per millisecond=425 ) properties seen :0 out of 1
Probabilistic random walk after 1276973 steps, saw 178070 distinct states, run finished after 3001 ms. (steps per millisecond=425 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:39:06] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:39:06] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 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: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 579ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 395 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 5 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 5 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:39:07] [INFO ] Invariant cache hit.
[2025-05-31 01:39:07] [INFO ] Implicit Places using invariants in 379 ms returned []
[2025-05-31 01:39:07] [INFO ] Invariant cache hit.
[2025-05-31 01:39:08] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:39:08] [INFO ] Implicit Places using invariants and state equation in 668 ms returned []
Implicit Place search using SMT with State Equation took 1049 ms to find 0 implicit places.
[2025-05-31 01:39:08] [INFO ] Redundant transitions in 0 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:39:08] [INFO ] Invariant cache hit.
[2025-05-31 01:39:08] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:39:12] [INFO ] Deduced a trap composed of 15 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:39:13] [INFO ] Deduced a trap composed of 8 places in 80 ms of which 2 ms to minimize.
[2025-05-31 01:39:13] [INFO ] Deduced a trap composed of 10 places in 109 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:39:15] [INFO ] Deduced a trap composed of 17 places in 111 ms of which 3 ms to minimize.
[2025-05-31 01:39:15] [INFO ] Deduced a trap composed of 16 places in 91 ms of which 2 ms to minimize.
[2025-05-31 01:39:15] [INFO ] Deduced a trap composed of 6 places in 33 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:39:17] [INFO ] Deduced a trap composed of 6 places in 24 ms of which 1 ms to minimize.
[2025-05-31 01:39:18] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:39:18] [INFO ] Deduced a trap composed of 12 places in 56 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 16826 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:39:33] [INFO ] Deduced a trap composed of 9 places in 63 ms of which 1 ms to minimize.
[2025-05-31 01:39:34] [INFO ] Deduced a trap composed of 14 places in 57 ms of which 2 ms to minimize.
[2025-05-31 01:39:35] [INFO ] Deduced a trap composed of 7 places in 100 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 46945ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 46948ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48014 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 20 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:39:55] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:39:55] [INFO ] [Real]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:39:55] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 01:39:55] [INFO ] After 113ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:39:55] [INFO ] [Nat]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:39:55] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 01:39:55] [INFO ] After 129ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:39:55] [INFO ] After 146ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:39:55] [INFO ] After 260ms 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 (546 resets) in 138 ms. (287 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (95 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1335413 steps, run timeout after 3001 ms. (steps per millisecond=444 ) properties seen :0 out of 1
Probabilistic random walk after 1335413 steps, saw 186516 distinct states, run finished after 3001 ms. (steps per millisecond=444 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:39:58] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:39:58] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 218 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 252 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 498ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 263 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 26 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (548 resets) in 156 ms. (254 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (98 resets) in 68 ms. (579 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1184117 steps, run timeout after 3001 ms. (steps per millisecond=394 ) properties seen :0 out of 1
Probabilistic random walk after 1184117 steps, saw 165834 distinct states, run finished after 3001 ms. (steps per millisecond=394 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:40:02] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:40:02] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 282 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 568ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 247 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:40:03] [INFO ] Invariant cache hit.
[2025-05-31 01:40:03] [INFO ] Implicit Places using invariants in 303 ms returned []
[2025-05-31 01:40:03] [INFO ] Invariant cache hit.
[2025-05-31 01:40:04] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:40:04] [INFO ] Implicit Places using invariants and state equation in 500 ms returned []
Implicit Place search using SMT with State Equation took 807 ms to find 0 implicit places.
[2025-05-31 01:40:04] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:40:04] [INFO ] Invariant cache hit.
[2025-05-31 01:40:04] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:40:08] [INFO ] Deduced a trap composed of 15 places in 81 ms of which 2 ms to minimize.
[2025-05-31 01:40:08] [INFO ] Deduced a trap composed of 8 places in 57 ms of which 1 ms to minimize.
[2025-05-31 01:40:08] [INFO ] Deduced a trap composed of 10 places in 61 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:40:10] [INFO ] Deduced a trap composed of 17 places in 81 ms of which 2 ms to minimize.
[2025-05-31 01:40:10] [INFO ] Deduced a trap composed of 16 places in 96 ms of which 2 ms to minimize.
[2025-05-31 01:40:10] [INFO ] Deduced a trap composed of 6 places in 30 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:40:12] [INFO ] Deduced a trap composed of 6 places in 19 ms of which 1 ms to minimize.
[2025-05-31 01:40:12] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:40:12] [INFO ] Deduced a trap composed of 12 places in 74 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 15452 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:40:27] [INFO ] Deduced a trap composed of 9 places in 59 ms of which 2 ms to minimize.
[2025-05-31 01:40:28] [INFO ] Deduced a trap composed of 14 places in 48 ms of which 1 ms to minimize.
[2025-05-31 01:40:29] [INFO ] Deduced a trap composed of 7 places in 66 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30035 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 45558ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 45561ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46381 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 10 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:40:49] [INFO ] Computed 60 invariants in 4 ms
[2025-05-31 01:40:50] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:40:50] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:40:50] [INFO ] After 110ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:40:50] [INFO ] [Nat]Absence check using 36 positive place invariants in 13 ms returned sat
[2025-05-31 01:40:50] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 26 ms returned sat
[2025-05-31 01:40:50] [INFO ] After 133ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:40:50] [INFO ] Deduced a trap composed of 6 places in 31 ms of which 1 ms to minimize.
[2025-05-31 01:40:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 54 ms
TRAPS : Iteration 1
[2025-05-31 01:40:50] [INFO ] After 211ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:40:50] [INFO ] After 359ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 488 ms.
RANDOM walk for 40000 steps (548 resets) in 123 ms. (322 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (100 resets) in 51 ms. (769 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1328187 steps, run timeout after 3001 ms. (steps per millisecond=442 ) properties seen :0 out of 1
Probabilistic random walk after 1328187 steps, saw 185431 distinct states, run finished after 3001 ms. (steps per millisecond=442 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:40:53] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:40:53] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 475ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 247 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 11 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (566 resets) in 131 ms. (303 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 56 ms. (701 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1329917 steps, run timeout after 3001 ms. (steps per millisecond=443 ) properties seen :0 out of 1
Probabilistic random walk after 1329917 steps, saw 185678 distinct states, run finished after 3001 ms. (steps per millisecond=443 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:40:57] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:40:57] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 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: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 564ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 235 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:40:58] [INFO ] Invariant cache hit.
[2025-05-31 01:40:58] [INFO ] Implicit Places using invariants in 233 ms returned []
[2025-05-31 01:40:58] [INFO ] Invariant cache hit.
[2025-05-31 01:40:58] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:40:58] [INFO ] Implicit Places using invariants and state equation in 429 ms returned []
Implicit Place search using SMT with State Equation took 687 ms to find 0 implicit places.
[2025-05-31 01:40:58] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:40:58] [INFO ] Invariant cache hit.
[2025-05-31 01:40:58] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:41:02] [INFO ] Deduced a trap composed of 15 places in 89 ms of which 2 ms to minimize.
[2025-05-31 01:41:03] [INFO ] Deduced a trap composed of 8 places in 71 ms of which 1 ms to minimize.
[2025-05-31 01:41:03] [INFO ] Deduced a trap composed of 10 places in 70 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:41:05] [INFO ] Deduced a trap composed of 17 places in 91 ms of which 2 ms to minimize.
[2025-05-31 01:41:05] [INFO ] Deduced a trap composed of 16 places in 103 ms of which 2 ms to minimize.
[2025-05-31 01:41:05] [INFO ] Deduced a trap composed of 6 places in 32 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:41:06] [INFO ] Deduced a trap composed of 6 places in 22 ms of which 0 ms to minimize.
[2025-05-31 01:41:07] [INFO ] Deduced a trap composed of 12 places in 59 ms of which 2 ms to minimize.
[2025-05-31 01:41:07] [INFO ] Deduced a trap composed of 12 places in 59 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 15229 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:41:22] [INFO ] Deduced a trap composed of 9 places in 66 ms of which 2 ms to minimize.
[2025-05-31 01:41:22] [INFO ] Deduced a trap composed of 14 places in 58 ms of which 2 ms to minimize.
[2025-05-31 01:41:24] [INFO ] Deduced a trap composed of 7 places in 78 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30028 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 45333ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 45335ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46034 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 9 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:41:44] [INFO ] Computed 60 invariants in 12 ms
[2025-05-31 01:41:44] [INFO ] [Real]Absence check using 36 positive place invariants in 12 ms returned sat
[2025-05-31 01:41:44] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 23 ms returned sat
[2025-05-31 01:41:44] [INFO ] After 113ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:41:44] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:41:44] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:41:44] [INFO ] After 126ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:41:44] [INFO ] After 144ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:41:44] [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 389 ms.
RANDOM walk for 40000 steps (538 resets) in 103 ms. (384 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (90 resets) in 52 ms. (754 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1296858 steps, run timeout after 3001 ms. (steps per millisecond=432 ) properties seen :0 out of 1
Probabilistic random walk after 1296858 steps, saw 180340 distinct states, run finished after 3001 ms. (steps per millisecond=432 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:41:47] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:41:47] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 223 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 473ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 234 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 13 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 13 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (543 resets) in 110 ms. (360 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (91 resets) in 53 ms. (740 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1210341 steps, run timeout after 3001 ms. (steps per millisecond=403 ) properties seen :0 out of 1
Probabilistic random walk after 1210341 steps, saw 169512 distinct states, run finished after 3001 ms. (steps per millisecond=403 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:41:51] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:41:51] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 373 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 416 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 799ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 339 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 5 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 5 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:41:52] [INFO ] Invariant cache hit.
[2025-05-31 01:41:52] [INFO ] Implicit Places using invariants in 420 ms returned []
[2025-05-31 01:41:52] [INFO ] Invariant cache hit.
[2025-05-31 01:41:53] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:41:53] [INFO ] Implicit Places using invariants and state equation in 697 ms returned []
Implicit Place search using SMT with State Equation took 1120 ms to find 0 implicit places.
[2025-05-31 01:41:53] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:41:53] [INFO ] Invariant cache hit.
[2025-05-31 01:41:53] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:41:59] [INFO ] Deduced a trap composed of 15 places in 109 ms of which 3 ms to minimize.
[2025-05-31 01:42:00] [INFO ] Deduced a trap composed of 8 places in 91 ms of which 3 ms to minimize.
[2025-05-31 01:42:00] [INFO ] Deduced a trap composed of 10 places in 103 ms of which 3 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:42:03] [INFO ] Deduced a trap composed of 17 places in 152 ms of which 3 ms to minimize.
[2025-05-31 01:42:03] [INFO ] Deduced a trap composed of 16 places in 123 ms of which 4 ms to minimize.
[2025-05-31 01:42:03] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:42:05] [INFO ] Deduced a trap composed of 6 places in 31 ms of which 1 ms to minimize.
[2025-05-31 01:42:06] [INFO ] Deduced a trap composed of 12 places in 85 ms of which 3 ms to minimize.
[2025-05-31 01:42:06] [INFO ] Deduced a trap composed of 12 places in 99 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 22245 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:42:25] [INFO ] Deduced a trap composed of 9 places in 94 ms of which 3 ms to minimize.
[2025-05-31 01:42:26] [INFO ] Deduced a trap composed of 14 places in 64 ms of which 2 ms to minimize.
[2025-05-31 01:42:28] [INFO ] Deduced a trap composed of 7 places in 96 ms of which 3 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30021 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 52382ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 52385ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53524 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 14 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:42:46] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:42:46] [INFO ] [Real]Absence check using 36 positive place invariants in 15 ms returned sat
[2025-05-31 01:42:46] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 30 ms returned sat
[2025-05-31 01:42:46] [INFO ] After 146ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:42:46] [INFO ] [Nat]Absence check using 36 positive place invariants in 14 ms returned sat
[2025-05-31 01:42:46] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 31 ms returned sat
[2025-05-31 01:42:46] [INFO ] After 205ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:42:46] [INFO ] Deduced a trap composed of 12 places in 77 ms of which 2 ms to minimize.
[2025-05-31 01:42:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 108 ms
TRAPS : Iteration 1
[2025-05-31 01:42:46] [INFO ] After 354ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:42:46] [INFO ] After 512ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 681 ms.
RANDOM walk for 40000 steps (536 resets) in 216 ms. (184 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (88 resets) in 90 ms. (439 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1212996 steps, run timeout after 3001 ms. (steps per millisecond=404 ) properties seen :0 out of 1
Probabilistic random walk after 1212996 steps, saw 169904 distinct states, run finished after 3004 ms. (steps per millisecond=403 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:42:49] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:42:49] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 211 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 244 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 463ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 295 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 10 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 11 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (553 resets) in 132 ms. (300 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (79 resets) in 63 ms. (625 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1287010 steps, run timeout after 3001 ms. (steps per millisecond=428 ) properties seen :0 out of 1
Probabilistic random walk after 1287010 steps, saw 179233 distinct states, run finished after 3004 ms. (steps per millisecond=428 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:42:53] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:42:53] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 366 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 371 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 757ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 355 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 7 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 5 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:42:54] [INFO ] Invariant cache hit.
[2025-05-31 01:42:55] [INFO ] Implicit Places using invariants in 427 ms returned []
[2025-05-31 01:42:55] [INFO ] Invariant cache hit.
[2025-05-31 01:42:55] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:42:55] [INFO ] Implicit Places using invariants and state equation in 611 ms returned []
Implicit Place search using SMT with State Equation took 1040 ms to find 0 implicit places.
[2025-05-31 01:42:55] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:42:55] [INFO ] Invariant cache hit.
[2025-05-31 01:42:55] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:43:00] [INFO ] Deduced a trap composed of 15 places in 102 ms of which 2 ms to minimize.
[2025-05-31 01:43:00] [INFO ] Deduced a trap composed of 8 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:43:00] [INFO ] Deduced a trap composed of 10 places in 72 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:43:03] [INFO ] Deduced a trap composed of 17 places in 143 ms of which 3 ms to minimize.
[2025-05-31 01:43:03] [INFO ] Deduced a trap composed of 16 places in 140 ms of which 4 ms to minimize.
[2025-05-31 01:43:03] [INFO ] Deduced a trap composed of 6 places in 44 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:43:06] [INFO ] Deduced a trap composed of 6 places in 23 ms of which 0 ms to minimize.
[2025-05-31 01:43:07] [INFO ] Deduced a trap composed of 12 places in 65 ms of which 2 ms to minimize.
[2025-05-31 01:43:07] [INFO ] Deduced a trap composed of 12 places in 64 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 18500 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:43:22] [INFO ] Deduced a trap composed of 9 places in 69 ms of which 1 ms to minimize.
[2025-05-31 01:43:22] [INFO ] Deduced a trap composed of 14 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:43:24] [INFO ] Deduced a trap composed of 7 places in 73 ms of which 1 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30013 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 48583ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 48585ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 49638 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 6 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:43:44] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:43:44] [INFO ] [Real]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:43:44] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 19 ms returned sat
[2025-05-31 01:43:44] [INFO ] After 98ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:43:44] [INFO ] [Nat]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:43:44] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 18 ms returned sat
[2025-05-31 01:43:44] [INFO ] After 136ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:43:44] [INFO ] Deduced a trap composed of 20 places in 65 ms of which 1 ms to minimize.
[2025-05-31 01:43:44] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 86 ms
TRAPS : Iteration 1
[2025-05-31 01:43:44] [INFO ] After 248ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:43:44] [INFO ] After 429ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 543 ms.
RANDOM walk for 40000 steps (519 resets) in 141 ms. (281 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (87 resets) in 49 ms. (800 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1326172 steps, run timeout after 3001 ms. (steps per millisecond=441 ) properties seen :0 out of 1
Probabilistic random walk after 1326172 steps, saw 185137 distinct states, run finished after 3001 ms. (steps per millisecond=441 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:43:48] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:43:48] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 constraints, problems are : Problem set: 0 solved, 1 unsolved in 359 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 620ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 325 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 14 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (549 resets) in 171 ms. (232 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (84 resets) in 71 ms. (555 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1245451 steps, run timeout after 3001 ms. (steps per millisecond=415 ) properties seen :0 out of 1
Probabilistic random walk after 1245451 steps, saw 174102 distinct states, run finished after 3002 ms. (steps per millisecond=414 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:43:52] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:43:52] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 254 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 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: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 550ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 268 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 4 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 7 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:43:52] [INFO ] Invariant cache hit.
[2025-05-31 01:43:53] [INFO ] Implicit Places using invariants in 383 ms returned []
[2025-05-31 01:43:53] [INFO ] Invariant cache hit.
[2025-05-31 01:43:53] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:43:53] [INFO ] Implicit Places using invariants and state equation in 596 ms returned []
Implicit Place search using SMT with State Equation took 985 ms to find 0 implicit places.
[2025-05-31 01:43:53] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:43:53] [INFO ] Invariant cache hit.
[2025-05-31 01:43:53] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:43:58] [INFO ] Deduced a trap composed of 15 places in 81 ms of which 4 ms to minimize.
[2025-05-31 01:43:58] [INFO ] Deduced a trap composed of 8 places in 69 ms of which 2 ms to minimize.
[2025-05-31 01:43:58] [INFO ] Deduced a trap composed of 10 places in 70 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:44:00] [INFO ] Deduced a trap composed of 17 places in 93 ms of which 2 ms to minimize.
[2025-05-31 01:44:00] [INFO ] Deduced a trap composed of 16 places in 125 ms of which 3 ms to minimize.
[2025-05-31 01:44:00] [INFO ] Deduced a trap composed of 6 places in 55 ms of which 1 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:44:02] [INFO ] Deduced a trap composed of 6 places in 31 ms of which 1 ms to minimize.
[2025-05-31 01:44:03] [INFO ] Deduced a trap composed of 12 places in 85 ms of which 2 ms to minimize.
[2025-05-31 01:44:03] [INFO ] Deduced a trap composed of 12 places in 86 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 17335 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:44:20] [INFO ] Deduced a trap composed of 9 places in 70 ms of which 2 ms to minimize.
[2025-05-31 01:44:20] [INFO ] Deduced a trap composed of 14 places in 63 ms of which 2 ms to minimize.
[2025-05-31 01:44:22] [INFO ] Deduced a trap composed of 7 places in 81 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30015 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 47472ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 47475ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48476 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 6 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:44:41] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:44:41] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:44:41] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 21 ms returned sat
[2025-05-31 01:44:41] [INFO ] After 97ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:44:41] [INFO ] [Nat]Absence check using 36 positive place invariants in 9 ms returned sat
[2025-05-31 01:44:41] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 19 ms returned sat
[2025-05-31 01:44:41] [INFO ] After 125ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:44:41] [INFO ] After 142ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:44:41] [INFO ] After 246ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 357 ms.
RANDOM walk for 40000 steps (551 resets) in 180 ms. (220 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40003 steps (91 resets) in 64 ms. (615 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1293416 steps, run timeout after 3001 ms. (steps per millisecond=430 ) properties seen :0 out of 1
Probabilistic random walk after 1293416 steps, saw 179990 distinct states, run finished after 3004 ms. (steps per millisecond=430 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:44:44] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:44:44] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 212 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 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: 232/232 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 203 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 10 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (524 resets) in 131 ms. (303 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (90 resets) in 59 ms. (666 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1293166 steps, run timeout after 3001 ms. (steps per millisecond=430 ) properties seen :0 out of 1
Probabilistic random walk after 1293166 steps, saw 179959 distinct states, run finished after 3001 ms. (steps per millisecond=430 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:44:48] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:44:48] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 constraints, problems are : Problem set: 0 solved, 1 unsolved in 238 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 254 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 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 189 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 3 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 3 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 3 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:44:49] [INFO ] Invariant cache hit.
[2025-05-31 01:44:49] [INFO ] Implicit Places using invariants in 260 ms returned []
[2025-05-31 01:44:49] [INFO ] Invariant cache hit.
[2025-05-31 01:44:49] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:44:49] [INFO ] Implicit Places using invariants and state equation in 458 ms returned []
Implicit Place search using SMT with State Equation took 720 ms to find 0 implicit places.
[2025-05-31 01:44:49] [INFO ] Redundant transitions in 1 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:44:49] [INFO ] Invariant cache hit.
[2025-05-31 01:44:49] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:44:54] [INFO ] Deduced a trap composed of 15 places in 71 ms of which 2 ms to minimize.
[2025-05-31 01:44:54] [INFO ] Deduced a trap composed of 8 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:44:54] [INFO ] Deduced a trap composed of 10 places in 69 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:44:56] [INFO ] Deduced a trap composed of 17 places in 77 ms of which 1 ms to minimize.
[2025-05-31 01:44:56] [INFO ] Deduced a trap composed of 16 places in 86 ms of which 2 ms to minimize.
[2025-05-31 01:44:56] [INFO ] Deduced a trap composed of 6 places in 35 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:44:58] [INFO ] Deduced a trap composed of 6 places in 20 ms of which 1 ms to minimize.
[2025-05-31 01:44:58] [INFO ] Deduced a trap composed of 12 places in 56 ms of which 2 ms to minimize.
[2025-05-31 01:44:58] [INFO ] Deduced a trap composed of 12 places in 59 ms of which 1 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 11 (OVERLAPS) 1/404 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 13 (OVERLAPS) 0/404 variables, 0/302 constraints. Problems are: Problem set: 0 solved, 170 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 302 constraints, problems are : Problem set: 0 solved, 170 unsolved in 15404 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 9/9 constraints]
Escalating to Integer solving :Problem set: 0 solved, 170 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/228 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (OVERLAPS) 2/230 variables, 7/67 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/230 variables, 2/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/230 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 7 (OVERLAPS) 173/403 variables, 230/299 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 2/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 170/471 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:45:13] [INFO ] Deduced a trap composed of 9 places in 69 ms of which 1 ms to minimize.
[2025-05-31 01:45:14] [INFO ] Deduced a trap composed of 14 places in 47 ms of which 1 ms to minimize.
[2025-05-31 01:45:15] [INFO ] Deduced a trap composed of 7 places in 69 ms of which 2 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/403 variables, 3/474 constraints. Problems are: Problem set: 0 solved, 170 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 403/404 variables, and 474 constraints, problems are : Problem set: 0 solved, 170 unsolved in 30012 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 230/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 170/170 constraints, Known Traps: 12/12 constraints]
After SMT, in 45490ms problems are : Problem set: 0 solved, 170 unsolved
Search for dead transitions found 0 dead transitions in 45492ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 46221 ms. Remains : 231/231 places, 173/173 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 231 transition count 173
Applied a total of 1 rules in 7 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:45:35] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:45:35] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2025-05-31 01:45:35] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 19 ms returned sat
[2025-05-31 01:45:35] [INFO ] After 91ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2025-05-31 01:45:35] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2025-05-31 01:45:35] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 20 ms returned sat
[2025-05-31 01:45:35] [INFO ] After 126ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2025-05-31 01:45:35] [INFO ] Deduced a trap composed of 16 places in 67 ms of which 2 ms to minimize.
[2025-05-31 01:45:35] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 88 ms
TRAPS : Iteration 1
[2025-05-31 01:45:35] [INFO ] After 240ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2025-05-31 01:45:35] [INFO ] After 341ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 444 ms.
RANDOM walk for 40000 steps (535 resets) in 102 ms. (388 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40002 steps (98 resets) in 58 ms. (678 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1183840 steps, run timeout after 3001 ms. (steps per millisecond=394 ) properties seen :0 out of 1
Probabilistic random walk after 1183840 steps, saw 165800 distinct states, run finished after 3001 ms. (steps per millisecond=394 ) properties seen :0
// Phase 1: matrix 174 rows 232 cols
[2025-05-31 01:45:38] [INFO ] Computed 60 invariants in 2 ms
[2025-05-31 01:45:38] [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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 30/406 variables, 30/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 0/406 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 406/406 variables, and 294 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: 232/232 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) 107/108 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/108 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 69/177 variables, 36/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/177 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 25/202 variables, 23/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/202 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 174/376 variables, 202/262 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/376 variables, 2/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/376 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/376 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 30/406 variables, 30/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/406 variables, 0/295 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 406/406 variables, and 295 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: 232/232 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 446ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 187 ms.
Support contains 1 out of 232 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 232/232 places, 174/174 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 232 transition count 174
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 231 transition count 173
Applied a total of 2 rules in 9 ms. Remains 231 /232 variables (removed 1) and now considering 173/174 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 231/232 places, 173/174 transitions.
RANDOM walk for 40000 steps (542 resets) in 108 ms. (366 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (94 resets) in 49 ms. (800 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1302999 steps, run timeout after 3001 ms. (steps per millisecond=434 ) properties seen :0 out of 1
Probabilistic random walk after 1302999 steps, saw 181024 distinct states, run finished after 3003 ms. (steps per millisecond=433 ) properties seen :0
// Phase 1: matrix 173 rows 231 cols
[2025-05-31 01:45:42] [INFO ] Computed 60 invariants in 3 ms
[2025-05-31 01:45:42] [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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 0/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/342 variables, 8/255 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/342 variables, 3/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 0/258 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/343 variables, 1/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 32/375 variables, 3/263 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/375 variables, 1/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 0/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 29/404 variables, 29/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/404 variables, 0/293 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 404/404 variables, and 293 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: 231/231 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) 106/107 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/107 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/147 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/147 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/181 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/181 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/190 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/190 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 140/330 variables, 190/245 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/330 variables, 2/247 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/330 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/330 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/342 variables, 8/256 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/342 variables, 3/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/342 variables, 0/259 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/343 variables, 1/260 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/343 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/343 variables, 0/261 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 32/375 variables, 3/264 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/375 variables, 1/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/375 variables, 0/265 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 29/404 variables, 29/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/404 variables, 0/294 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 404/404 variables, and 294 constraints, problems are : Problem set: 0 solved, 1 unsolved in 271 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 231/231 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 526ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 182 ms.
Support contains 1 out of 231 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 3 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 4 ms. Remains : 231/231 places, 173/173 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 231/231 places, 173/173 transitions.
Applied a total of 0 rules in 3 ms. Remains 231 /231 variables (removed 0) and now considering 173/173 (removed 0) transitions.
[2025-05-31 01:45:43] [INFO ] Invariant cache hit.
[2025-05-31 01:45:43] [INFO ] Implicit Places using invariants in 239 ms returned []
[2025-05-31 01:45:43] [INFO ] Invariant cache hit.
[2025-05-31 01:45:43] [INFO ] State equation strengthened by 2 read => feed constraints.
[2025-05-31 01:45:44] [INFO ] Implicit Places using invariants and state equation in 452 ms returned []
Implicit Place search using SMT with State Equation took 693 ms to find 0 implicit places.
[2025-05-31 01:45:44] [INFO ] Redundant transitions in 0 ms returned []
Running 170 sub problems to find dead transitions.
[2025-05-31 01:45:44] [INFO ] Invariant cache hit.
[2025-05-31 01:45:44] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/228 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/228 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/228 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 170 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/230 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/230 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 5 (OVERLAPS) 173/403 variables, 230/290 constraints. Problems are: Problem set: 0 solved, 170 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/403 variables, 2/292 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:45:47] [INFO ] Deduced a trap composed of 15 places in 91 ms of which 2 ms to minimize.
[2025-05-31 01:45:48] [INFO ] Deduced a trap composed of 8 places in 70 ms of which 2 ms to minimize.
[2025-05-31 01:45:48] [INFO ] Deduced a trap composed of 10 places in 71 ms of which 2 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/403 variables, 3/295 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:45:50] [INFO ] Deduced a trap composed of 17 places in 80 ms of which 2 ms to minimize.
[2025-05-31 01:45:50] [INFO ] Deduced a trap composed of 16 places in 79 ms of which 2 ms to minimize.
[2025-05-31 01:45:50] [INFO ] Deduced a trap composed of 6 places in 32 ms of which 0 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/403 variables, 3/298 constraints. Problems are: Problem set: 0 solved, 170 unsolved
[2025-05-31 01:45:51] [INFO ] Deduced a trap composed of 6 places in 19 ms of which 1 ms to minimize.
[2025-05-31 01:45:52] [INFO ] Deduced a trap composed of 12 places in 62 ms of which 1 ms to minimize.
[2025-05-31 01:45:52] [INFO ] Deduced a trap composed of 12 places in 58 ms of which 2 ms to minimize.
At refinement iteration 9 (INCLUDED_ONLY) 0/403 variables, 3/301 constraints. Problems are: Problem set: 0 solved, 170 unsolved

BK_TIME_CONFINEMENT_REACHED

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
++ perl -pe 's/.*\.//g'
+ 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-30a"
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-30a, 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-174854076400197"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DES-PT-30a.tgz
mv DES-PT-30a 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 ;