Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r096-smll-177946996500228.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool gold2025
Input is DES-PT-10a, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r096-smll-177946996500228
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 7.3K Mar 6 18:25 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Mar 6 18:25 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 6 18:25 CTLFireability.txt
-rw-r--r-- 1 mcc users 44K Mar 6 18:25 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.2K Mar 15 08:56 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 15 08:56 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:56 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:56 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 18:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 148K Mar 6 18:25 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Mar 6 18:25 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 87K Mar 6 18:25 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:56 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:56 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 43K Mar 3 18:30 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 StableMarking

=== Now, execution of the tool begins

BK_START 1779533027177

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DES-PT-10a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202505121319
[2026-05-23 10:43:49] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-23 10:43:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 10:43:49] [INFO ] Load time of PNML (sax parser for PT used): 139 ms
[2026-05-23 10:43:49] [INFO ] Transformed 155 places.
[2026-05-23 10:43:49] [INFO ] Transformed 112 transitions.
[2026-05-23 10:43:49] [INFO ] Found NUPN structural information;
[2026-05-23 10:43:49] [INFO ] Parsed PT model containing 155 places and 112 transitions and 552 arcs in 349 ms.
Structural test allowed to assert that 44 places are NOT stable. Took 13 ms.
Ensure Unique test removed 14 transitions
Reduce redundant transitions removed 14 transitions.
[2026-05-23 10:43:50] [INFO ] Flatten gal took : 184 ms
[2026-05-23 10:43:50] [INFO ] Flatten gal took : 66 ms
[2026-05-23 10:43:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14506228037442805970.gal : 54 ms
[2026-05-23 10:43:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5252961357618445312.prop : 4 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality14506228037442805970.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5252961357618445312.prop' '--nowitness' '--gen-order' 'FOLLOW'
RANDOM walk for 40000 steps (896 resets) in 2629 ms. (15 steps per ms) remains 20/111 properties
BEST_FIRST walk for 4004 steps (18 resets) in 74 ms. (53 steps per ms) remains 20/20 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality5252961357618445312.prop.
BEST_FIRST walk for 4004 steps (17 resets) in 58 ms. (67 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4003 steps (21 resets) in 88 ms. (44 steps per ms) remains 20/20 properties
Invariant property smplace_47 does not hold.
Invariant property smplace_40 does not hold.
SDD proceeding with computation,109 properties remain. new max is 2
SDD size :1 after 3
Invariant property smplace_71 does not hold.
Invariant property smplace_30 does not hold.
SDD proceeding with computation,107 properties remain. new max is 2
SDD size :3 after 5
Invariant property smplace_51 does not hold.
Invariant property smplace_49 does not hold.
Invariant property smplace_46 does not hold.
Invariant property smplace_44 does not hold.
BEST_FIRST walk for 4003 steps (18 resets) in 102 ms. (38 steps per ms) remains 20/20 properties
Invariant property smplace_42 does not hold.
Invariant property smplace_39 does not hold.
SDD proceeding with computation,101 properties remain. new max is 2
SDD size :5 after 9
SDD proceeding with computation,101 properties remain. new max is 4
SDD size :9 after 18
SDD proceeding with computation,101 properties remain. new max is 8
SDD size :18 after 20
Invariant property smplace_69 does not hold.
Invariant property smplace_57 does not hold.
BEST_FIRST walk for 4002 steps (22 resets) in 86 ms. (46 steps per ms) remains 20/20 properties
SDD proceeding with computation,99 properties remain. new max is 8
SDD size :20 after 54
Invariant property smplace_56 does not hold.
Invariant property smplace_29 does not hold.
SDD proceeding with computation,97 properties remain. new max is 8
SDD size :54 after 56
SDD proceeding with computation,97 properties remain. new max is 16
SDD size :56 after 60
BEST_FIRST walk for 4003 steps (18 resets) in 64 ms. (61 steps per ms) remains 20/20 properties
SDD proceeding with computation,97 properties remain. new max is 32
SDD size :60 after 73
Invariant property smplace_67 does not hold.
Invariant property smplace_65 does not hold.
Invariant property smplace_63 does not hold.
Invariant property smplace_60 does not hold.
Invariant property smplace_58 does not hold.
SDD proceeding with computation,92 properties remain. new max is 32
SDD size :73 after 159
BEST_FIRST walk for 4004 steps (19 resets) in 38 ms. (102 steps per ms) remains 20/20 properties
Invariant property smplace_153 does not hold.
Invariant property smplace_151 does not hold.
Invariant property smplace_149 does not hold.
Invariant property smplace_136 does not hold.
Invariant property smplace_129 does not hold.
Invariant property smplace_61 does not hold.
BEST_FIRST walk for 4004 steps (18 resets) in 46 ms. (85 steps per ms) remains 20/20 properties
Invariant property smplace_54 does not hold.
BEST_FIRST walk for 4002 steps (16 resets) in 45 ms. (87 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4002 steps (17 resets) in 39 ms. (100 steps per ms) remains 20/20 properties
Invariant property smplace_20 does not hold.
SDD proceeding with computation,84 properties remain. new max is 32
SDD size :159 after 1305
Invariant property smplace_59 does not hold.
Invariant property smplace_28 does not hold.
BEST_FIRST walk for 4003 steps (18 resets) in 42 ms. (93 steps per ms) remains 20/20 properties
SDD proceeding with computation,82 properties remain. new max is 32
SDD size :1305 after 1481
SDD proceeding with computation,82 properties remain. new max is 64
SDD size :1481 after 1613
Invariant property smplace_38 does not hold.
SDD proceeding with computation,81 properties remain. new max is 64
SDD size :1613 after 1945
SDD proceeding with computation,81 properties remain. new max is 128
SDD size :1945 after 2293
BEST_FIRST walk for 4003 steps (17 resets) in 98 ms. (40 steps per ms) remains 20/20 properties
SDD proceeding with computation,81 properties remain. new max is 256
SDD size :2293 after 3433
BEST_FIRST walk for 4003 steps (20 resets) in 42 ms. (93 steps per ms) remains 20/20 properties
Invariant property smplace_154 does not hold.
Invariant property smplace_152 does not hold.
Invariant property smplace_148 does not hold.
Invariant property smplace_143 does not hold.
Invariant property smplace_142 does not hold.
Invariant property smplace_141 does not hold.
Invariant property smplace_133 does not hold.
Invariant property smplace_131 does not hold.
Invariant property smplace_126 does not hold.
Invariant property smplace_124 does not hold.
Invariant property smplace_122 does not hold.
Invariant property smplace_120 does not hold.
Invariant property smplace_118 does not hold.
Invariant property smplace_117 does not hold.
Invariant property smplace_116 does not hold.
Invariant property smplace_115 does not hold.
Invariant property smplace_114 does not hold.
Invariant property smplace_113 does not hold.
Invariant property smplace_112 does not hold.
BEST_FIRST walk for 4002 steps (17 resets) in 43 ms. (90 steps per ms) remains 20/20 properties
Invariant property smplace_101 does not hold.
Invariant property smplace_99 does not hold.
Invariant property smplace_97 does not hold.
Invariant property smplace_85 does not hold.
Invariant property smplace_83 does not hold.
Invariant property smplace_81 does not hold.
Invariant property smplace_79 does not hold.
BEST_FIRST walk for 4003 steps (20 resets) in 43 ms. (90 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (20 resets) in 37 ms. (105 steps per ms) remains 20/20 properties
Invariant property smplace_19 does not hold.
BEST_FIRST walk for 4004 steps (15 resets) in 41 ms. (95 steps per ms) remains 20/20 properties
SDD proceeding with computation,54 properties remain. new max is 256
SDD size :3433 after 87697
BEST_FIRST walk for 4004 steps (19 resets) in 17 ms. (222 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (16 resets) in 17 ms. (222 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (15 resets) in 20 ms. (190 steps per ms) remains 20/20 properties
Invariant property smplace_121 does not hold.
Invariant property smplace_119 does not hold.
Invariant property smplace_105 does not hold.
Invariant property smplace_103 does not hold.
Invariant property smplace_89 does not hold.
Invariant property smplace_87 does not hold.
SDD proceeding with computation,48 properties remain. new max is 256
SDD size :87697 after 224273
// Phase 1: matrix 98 rows 155 cols
[2026-05-23 10:43:51] [INFO ] Computed 59 invariants in 28 ms
Invariant property smplace_123 does not hold.
Invariant property smplace_107 does not hold.
[2026-05-23 10:43:51] [INFO ] State equation strengthened by 1 read => feed constraints.
Invariant property smplace_91 does not hold.
SDD proceeding with computation,45 properties remain. new max is 256
SDD size :224273 after 526993
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Invariant property smplace_125 does not hold.
Invariant property smplace_109 does not hold.
Invariant property smplace_93 does not hold.
SDD proceeding with computation,42 properties remain. new max is 256
SDD size :526993 after 1.2507e+06
SDD proceeding with computation,42 properties remain. new max is 512
SDD size :1.2507e+06 after 1.50274e+06
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/20 variables, 20/20 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/20 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 20 unsolved
SDD proceeding with computation,42 properties remain. new max is 1024
SDD size :1.50274e+06 after 1.74773e+06
At refinement iteration 2 (OVERLAPS) 50/70 variables, 7/27 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/70 variables, 50/77 constraints. Problems are: Problem set: 0 solved, 20 unsolved
SDD proceeding with computation,42 properties remain. new max is 2048
SDD size :1.74773e+06 after 3.13742e+06
At refinement iteration 4 (INCLUDED_ONLY) 0/70 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (OVERLAPS) 55/125 variables, 34/111 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/125 variables, 55/166 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/125 variables, 0/166 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (OVERLAPS) 22/147 variables, 18/184 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/147 variables, 22/206 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/147 variables, 0/206 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 11 (OVERLAPS) 97/244 variables, 147/353 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/244 variables, 1/354 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/244 variables, 0/354 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Invariant property smplace_127 does not hold.
Invariant property smplace_111 does not hold.
Invariant property smplace_95 does not hold.
Invariant property smplace_77 does not hold.
At refinement iteration 14 (OVERLAPS) 9/253 variables, 8/362 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/253 variables, 8/370 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/253 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 17 (OVERLAPS) 0/253 variables, 0/370 constraints. Problems are: Problem set: 0 solved, 20 unsolved
No progress, stopping.
After SMT solving in domain Real declared 253/253 variables, and 370 constraints, problems are : Problem set: 0 solved, 20 unsolved in 3182 ms.
Refiners :[Domain max(s): 155/155 constraints, Positive P Invariants (semi-flows): 34/34 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 155/155 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/20 variables, 20/20 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/20 variables, 0/20 constraints. Problems are: Problem set: 0 solved, 20 unsolved
SDD proceeding with computation,38 properties remain. new max is 2048
SDD size :3.13742e+06 after 9.62104e+06
At refinement iteration 2 (OVERLAPS) 50/70 variables, 7/27 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/70 variables, 50/77 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/70 variables, 0/77 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (OVERLAPS) 55/125 variables, 34/111 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/125 variables, 55/166 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:43:55] [INFO ] Deduced a trap composed of 9 places in 61 ms of which 12 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/125 variables, 1/167 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/125 variables, 0/167 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 9 (OVERLAPS) 22/147 variables, 18/185 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/147 variables, 22/207 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/147 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 12 (OVERLAPS) 97/244 variables, 147/354 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/244 variables, 1/355 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/244 variables, 20/375 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:43:56] [INFO ] Deduced a trap composed of 10 places in 82 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:43:56] [INFO ] Deduced a trap composed of 9 places in 62 ms of which 5 ms to minimize.
SDD proceeding with computation,38 properties remain. new max is 4096
SDD size :9.62104e+06 after 9.70816e+06
At refinement iteration 15 (INCLUDED_ONLY) 0/244 variables, 2/377 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/244 variables, 0/377 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 17 (OVERLAPS) 9/253 variables, 8/385 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/253 variables, 8/393 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:43:58] [INFO ] Deduced a trap composed of 12 places in 144 ms of which 5 ms to minimize.
At refinement iteration 19 (INCLUDED_ONLY) 0/253 variables, 1/394 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 253/253 variables, and 394 constraints, problems are : Problem set: 0 solved, 20 unsolved in 5046 ms.
Refiners :[Domain max(s): 155/155 constraints, Positive P Invariants (semi-flows): 34/34 constraints, Generalized P Invariants (flows): 25/25 constraints, State Equation: 155/155 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 8345ms problems are : Problem set: 0 solved, 20 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 20 out of 155 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 155/155 places, 98/98 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 155 transition count 96
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 154 transition count 95
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 154 transition count 95
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 154 transition count 95
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 9 place count 153 transition count 94
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 10 place count 152 transition count 94
Applied a total of 10 rules in 97 ms. Remains 152 /155 variables (removed 3) and now considering 94/98 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 111 ms. Remains : 152/155 places, 94/98 transitions.
SDD proceeding with computation,38 properties remain. new max is 8192
SDD size :9.70816e+06 after 1.59397e+07
RANDOM walk for 4000000 steps (54637 resets) in 27168 ms. (147 steps per ms) remains 9/20 properties
BEST_FIRST walk for 4000004 steps (9168 resets) in 8063 ms. (496 steps per ms) remains 9/9 properties
Invariant property smplace_147 does not hold.
Invariant property smplace_146 does not hold.
Invariant property smplace_144 does not hold.
BEST_FIRST walk for 4000004 steps (9049 resets) in 8157 ms. (490 steps per ms) remains 9/9 properties
Invariant property smplace_75 does not hold.
BEST_FIRST walk for 4000004 steps (9008 resets) in 7225 ms. (553 steps per ms) remains 9/9 properties
Invariant property smplace_27 does not hold.
BEST_FIRST walk for 4000004 steps (9132 resets) in 8738 ms. (457 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000003 steps (9138 resets) in 7005 ms. (570 steps per ms) remains 9/9 properties
BEST_FIRST walk for 4000004 steps (9140 resets) in 6113 ms. (654 steps per ms) remains 9/9 properties
SDD proceeding with computation,33 properties remain. new max is 8192
SDD size :1.26571e+08 after 1.27569e+08
BEST_FIRST walk for 4000003 steps (9044 resets) in 6266 ms. (638 steps per ms) remains 9/9 properties
Invariant property smplace_135 does not hold.
Invariant property smplace_73 does not hold.
BEST_FIRST walk for 4000004 steps (9086 resets) in 6282 ms. (636 steps per ms) remains 9/9 properties
Invariant property smplace_10 does not hold.
SDD proceeding with computation,30 properties remain. new max is 8192
SDD size :1.27569e+08 after 1.6788e+08
BEST_FIRST walk for 4000003 steps (9085 resets) in 6121 ms. (653 steps per ms) remains 9/9 properties
// Phase 1: matrix 94 rows 152 cols
[2026-05-23 10:44:25] [INFO ] Computed 60 invariants in 7 ms
[2026-05-23 10:44:25] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 55/64 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (OVERLAPS) 35/99 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/99 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (OVERLAPS) 25/124 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/124 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 7/131 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 12 (OVERLAPS) 11/223 variables, 8/196 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/223 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/223 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 15 (OVERLAPS) 1/224 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/224 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/224 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 18 (OVERLAPS) 12/236 variables, 2/203 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/236 variables, 1/204 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/236 variables, 0/204 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 21 (OVERLAPS) 10/246 variables, 10/214 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 23 (OVERLAPS) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 214 constraints, problems are : Problem set: 0 solved, 9 unsolved in 640 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 1 (OVERLAPS) 55/64 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 3 (OVERLAPS) 35/99 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/99 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 5 (OVERLAPS) 25/124 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/124 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 7 (OVERLAPS) 7/131 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 9/197 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/212 variables, 0/197 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 13 (OVERLAPS) 11/223 variables, 8/205 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/223 variables, 3/208 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/223 variables, 0/208 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 16 (OVERLAPS) 1/224 variables, 1/209 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/224 variables, 1/210 constraints. Problems are: Problem set: 0 solved, 9 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:44:26] [INFO ] Deduced a trap composed of 11 places in 48 ms of which 5 ms to minimize.
SDD proceeding with computation,30 properties remain. new max is 16384
SDD size :1.6788e+08 after 2.16653e+08
At refinement iteration 18 (INCLUDED_ONLY) 0/224 variables, 1/211 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/224 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 20 (OVERLAPS) 12/236 variables, 2/213 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/236 variables, 1/214 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/236 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 23 (OVERLAPS) 10/246 variables, 10/224 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/246 variables, 0/224 constraints. Problems are: Problem set: 0 solved, 9 unsolved
At refinement iteration 25 (OVERLAPS) 0/246 variables, 0/224 constraints. Problems are: Problem set: 0 solved, 9 unsolved
No progress, stopping.
After SMT solving in domain Int declared 246/246 variables, and 224 constraints, problems are : Problem set: 0 solved, 9 unsolved in 2142 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 9/9 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2801ms problems are : Problem set: 0 solved, 9 unsolved
SDD proceeding with computation,30 properties remain. new max is 32768
SDD size :2.16653e+08 after 3.30004e+08
Parikh walk visited 5 properties in 5742 ms.
Support contains 4 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 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 152 transition count 94
Applied a total of 1 rules in 16 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 152/152 places, 94/94 transitions.
RANDOM walk for 4000000 steps (54538 resets) in 13328 ms. (300 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (9027 resets) in 5751 ms. (695 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000003 steps (9024 resets) in 5253 ms. (761 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (9075 resets) in 6105 ms. (655 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (9100 resets) in 6588 ms. (607 steps per ms) remains 4/4 properties
Invariant property smplace_139 does not hold.
Invariant property smplace_138 does not hold.
Invariant property smplace_137 does not hold.
Invariant property smplace_37 does not hold.
Invariant property smplace_26 does not hold.
SDD proceeding with computation,25 properties remain. new max is 32768
SDD size :3.30004e+08 after 6.56181e+08
Invariant property smplace_140 does not hold.
Interrupted probabilistic random walk after 7573548 steps, run timeout after 30001 ms. (steps per millisecond=252 ) properties seen :0 out of 4
Probabilistic random walk after 7573548 steps, saw 971912 distinct states, run finished after 30013 ms. (steps per millisecond=252 ) properties seen :0
// Phase 1: matrix 94 rows 152 cols
[2026-05-23 10:45:14] [INFO ] Computed 60 invariants in 7 ms
[2026-05-23 10:45:14] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 60/64 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 35/99 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/99 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 25/124 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/124 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 7/131 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (OVERLAPS) 12/224 variables, 8/196 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/224 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 1/225 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 18 (OVERLAPS) 12/237 variables, 3/204 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/237 variables, 1/205 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 21 (OVERLAPS) 9/246 variables, 9/214 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 23 (OVERLAPS) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 214 constraints, problems are : Problem set: 0 solved, 4 unsolved in 379 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 75.0 s and query timeout 7500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 60/64 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/64 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 35/99 variables, 24/31 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/99 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 25/124 variables, 17/48 constraints. Problems are: Problem set: 0 solved, 4 unsolved
SDD proceeding with computation,24 properties remain. new max is 32768
At refinement iteration 6 (INCLUDED_ONLY) 0/124 variables, 0/48 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (OVERLAPS) 7/131 variables, 7/55 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 4/192 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD size :6.56181e+08 after 1.01109e+09
[2026-05-23 10:45:15] [INFO ] Deduced a trap composed of 12 places in 67 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:15] [INFO ] Deduced a trap composed of 11 places in 60 ms of which 6 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/212 variables, 2/194 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/212 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (OVERLAPS) 12/224 variables, 8/202 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/224 variables, 3/205 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/224 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (OVERLAPS) 1/225 variables, 1/206 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/225 variables, 1/207 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/225 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 20 (OVERLAPS) 12/237 variables, 3/210 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/237 variables, 1/211 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/237 variables, 0/211 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 23 (OVERLAPS) 9/246 variables, 9/220 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/246 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 25 (OVERLAPS) 0/246 variables, 0/220 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 246/246 variables, and 220 constraints, problems are : Problem set: 0 solved, 4 unsolved in 1209 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1607ms problems are : Problem set: 0 solved, 4 unsolved
Fused 4 Parikh solutions to 3 different solutions.
Parikh walk visited 3 properties in 934 ms.
Support contains 1 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 12 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 12 ms. Remains : 152/152 places, 94/94 transitions.
RANDOM walk for 4000000 steps (54565 resets) in 10060 ms. (397 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000004 steps (9120 resets) in 4841 ms. (826 steps per ms) remains 1/1 properties
SDD proceeding with computation,24 properties remain. new max is 65536
SDD size :1.01109e+09 after 1.24696e+09
Interrupted probabilistic random walk after 5806854 steps, run timeout after 12001 ms. (steps per millisecond=483 ) properties seen :0 out of 1
Probabilistic random walk after 5806854 steps, saw 748841 distinct states, run finished after 12001 ms. (steps per millisecond=483 ) properties seen :0
[2026-05-23 10:45:33] [INFO ] Invariant cache hit.
[2026-05-23 10:45:33] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/224 variables, 8/196 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/224 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/225 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 12/237 variables, 3/204 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/237 variables, 1/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 9/246 variables, 9/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 214 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: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 90.0 s and query timeout 9000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/212 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/224 variables, 8/197 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 3/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/224 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 1/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/225 variables, 0/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 12/237 variables, 3/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 1/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/237 variables, 0/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 9/246 variables, 9/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 246/246 variables, and 215 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: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 650ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 46 ms.
Support contains 1 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 8 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 152/152 places, 94/94 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 8 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
[2026-05-23 10:45:33] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 10:45:34] [INFO ] Implicit Places using invariants in 351 ms returned []
[2026-05-23 10:45:34] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 10:45:34] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 10:45:34] [INFO ] Implicit Places using invariants and state equation in 623 ms returned []
Implicit Place search using SMT with State Equation took 1002 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 10:45:34] [INFO ] Redundant transitions in 3 ms returned []
Running 91 sub problems to find dead transitions.
[2026-05-23 10:45:34] [INFO ] Invariant cache hit.
[2026-05-23 10:45:34] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/149 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/149 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/151 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/151 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 5 (OVERLAPS) 94/245 variables, 151/211 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/245 variables, 2/213 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:37] [INFO ] Deduced a trap composed of 12 places in 80 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:37] [INFO ] Deduced a trap composed of 10 places in 70 ms of which 4 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/245 variables, 2/215 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/245 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (OVERLAPS) 1/246 variables, 1/216 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:39] [INFO ] Deduced a trap composed of 6 places in 62 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:39] [INFO ] Deduced a trap composed of 8 places in 92 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:39] [INFO ] Deduced a trap composed of 8 places in 68 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:39] [INFO ] Deduced a trap composed of 7 places in 64 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:39] [INFO ] Deduced a trap composed of 15 places in 77 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:39] [INFO ] Deduced a trap composed of 16 places in 82 ms of which 9 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/246 variables, 6/222 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:40] [INFO ] Deduced a trap composed of 7 places in 53 ms of which 4 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/246 variables, 1/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/246 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 13 (OVERLAPS) 0/246 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 223 constraints, problems are : Problem set: 0 solved, 91 unsolved in 7614 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/149 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/149 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 9/62 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/149 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (OVERLAPS) 2/151 variables, 7/69 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:43] [INFO ] Deduced a trap composed of 11 places in 62 ms of which 5 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/151 variables, 1/70 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:44] [INFO ] Deduced a trap composed of 8 places in 42 ms of which 2 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 1/71 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/151 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (OVERLAPS) 94/245 variables, 151/222 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/245 variables, 2/224 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/245 variables, 91/315 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:46] [INFO ] Deduced a trap composed of 6 places in 33 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/245 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:45:55] [INFO ] Deduced a trap composed of 14 places in 79 ms of which 7 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/245 variables, 1/317 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Invariant property smplace_25 does not hold.
At refinement iteration 13 (INCLUDED_ONLY) 0/245 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 91 unsolved
SDD proceeding with computation,23 properties remain. new max is 65536
SDD size :1.24696e+09 after 1.73023e+09
At refinement iteration 14 (OVERLAPS) 1/246 variables, 1/318 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 246/246 variables, and 318 constraints, problems are : Problem set: 0 solved, 91 unsolved in 30015 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 13/13 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37720ms problems are : Problem set: 0 solved, 91 unsolved
Search for dead transitions found 0 dead transitions in 37725ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38758 ms. Remains : 152/152 places, 94/94 transitions.
RANDOM walk for 400000 steps (5429 resets) in 3446 ms. (116 steps per ms) remains 1/1 properties
Running SMT prover for 1 properties.
[2026-05-23 10:46:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 10:46:13] [INFO ] [Real]Absence check using 36 positive place invariants in 11 ms returned sat
[2026-05-23 10:46:13] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 12 ms returned sat
[2026-05-23 10:46:13] [INFO ] After 78ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-23 10:46:13] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 10:46:13] [INFO ] After 3ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-23 10:46:13] [INFO ] After 18ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2026-05-23 10:46:13] [INFO ] After 212ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
RANDOM walk for 4000000 steps (54609 resets) in 11257 ms. (355 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000004 steps (9126 resets) in 4779 ms. (836 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 5952523 steps, run timeout after 12001 ms. (steps per millisecond=496 ) properties seen :0 out of 1
Probabilistic random walk after 5952523 steps, saw 764060 distinct states, run finished after 12002 ms. (steps per millisecond=495 ) properties seen :0
[2026-05-23 10:46:30] [INFO ] Invariant cache hit.
[2026-05-23 10:46:30] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/224 variables, 8/196 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/224 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/225 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 12/237 variables, 3/204 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/237 variables, 1/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 9/246 variables, 9/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 214 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: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 105.0 s and query timeout 10500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/212 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/224 variables, 8/197 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 3/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/224 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 1/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/225 variables, 0/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 12/237 variables, 3/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 1/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/237 variables, 0/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 9/246 variables, 9/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 246/246 variables, and 215 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: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 508ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 48 ms.
Support contains 1 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 7 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 9 ms. Remains : 152/152 places, 94/94 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 7 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
[2026-05-23 10:46:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 10:46:30] [INFO ] Implicit Places using invariants in 172 ms returned []
[2026-05-23 10:46:30] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 10:46:31] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 10:46:31] [INFO ] Implicit Places using invariants and state equation in 362 ms returned []
Implicit Place search using SMT with State Equation took 537 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 10:46:31] [INFO ] Redundant transitions in 2 ms returned []
Running 91 sub problems to find dead transitions.
[2026-05-23 10:46:31] [INFO ] Invariant cache hit.
[2026-05-23 10:46:31] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/149 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/149 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/151 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/151 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 5 (OVERLAPS) 94/245 variables, 151/211 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/245 variables, 2/213 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:33] [INFO ] Deduced a trap composed of 12 places in 87 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:33] [INFO ] Deduced a trap composed of 10 places in 73 ms of which 5 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/245 variables, 2/215 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/245 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (OVERLAPS) 1/246 variables, 1/216 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:34] [INFO ] Deduced a trap composed of 6 places in 61 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:35] [INFO ] Deduced a trap composed of 8 places in 61 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:35] [INFO ] Deduced a trap composed of 8 places in 70 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:35] [INFO ] Deduced a trap composed of 7 places in 61 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:35] [INFO ] Deduced a trap composed of 15 places in 76 ms of which 9 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:35] [INFO ] Deduced a trap composed of 16 places in 72 ms of which 9 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/246 variables, 6/222 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:36] [INFO ] Deduced a trap composed of 7 places in 57 ms of which 6 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/246 variables, 1/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/246 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 13 (OVERLAPS) 0/246 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 223 constraints, problems are : Problem set: 0 solved, 91 unsolved in 6934 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/149 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/149 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 9/62 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/149 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (OVERLAPS) 2/151 variables, 7/69 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:39] [INFO ] Deduced a trap composed of 11 places in 42 ms of which 4 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/151 variables, 1/70 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:39] [INFO ] Deduced a trap composed of 8 places in 45 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 1/71 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/151 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (OVERLAPS) 94/245 variables, 151/222 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/245 variables, 2/224 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/245 variables, 91/315 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:42] [INFO ] Deduced a trap composed of 6 places in 29 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/245 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:46:50] [INFO ] Deduced a trap composed of 14 places in 54 ms of which 6 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/245 variables, 1/317 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/245 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 14 (OVERLAPS) 1/246 variables, 1/318 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Invariant property smplace_24 does not hold.
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 246/246 variables, and 318 constraints, problems are : Problem set: 0 solved, 91 unsolved in 30014 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 13/13 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 36981ms problems are : Problem set: 0 solved, 91 unsolved
Search for dead transitions found 0 dead transitions in 36982ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 37540 ms. Remains : 152/152 places, 94/94 transitions.
RANDOM walk for 400000 steps (5423 resets) in 1031 ms. (387 steps per ms) remains 1/1 properties
Running SMT prover for 1 properties.
[2026-05-23 10:47:08] [INFO ] Invariant cache hit.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 10:47:08] [INFO ] [Real]Absence check using 36 positive place invariants in 17 ms returned sat
[2026-05-23 10:47:08] [INFO ] [Real]Absence check using 36 positive and 24 generalized place invariants in 14 ms returned sat
[2026-05-23 10:47:08] [INFO ] After 85ms SMT Verify possible using state equation in real domain returned unsat :0 sat :1
[2026-05-23 10:47:08] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 10:47:08] [INFO ] After 3ms SMT Verify possible using 2 Read/Feed constraints in real domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-23 10:47:08] [INFO ] After 16ms SMT Verify possible using trap constraints in real domain returned unsat :0 sat :1
[2026-05-23 10:47:08] [INFO ] After 181ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :1
RANDOM walk for 40000 steps (547 resets) in 121 ms. (327 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (79 resets) in 57 ms. (689 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1496291 steps, run timeout after 3001 ms. (steps per millisecond=498 ) properties seen :0 out of 1
Probabilistic random walk after 1496291 steps, saw 208589 distinct states, run finished after 3001 ms. (steps per millisecond=498 ) properties seen :0
[2026-05-23 10:47:11] [INFO ] Invariant cache hit.
[2026-05-23 10:47:11] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/224 variables, 8/196 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/224 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/225 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 12/237 variables, 3/204 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/237 variables, 1/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 9/246 variables, 9/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 214 constraints, problems are : Problem set: 0 solved, 1 unsolved in 182 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/212 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/224 variables, 8/197 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 3/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/224 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 1/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/225 variables, 0/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 12/237 variables, 3/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 1/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/237 variables, 0/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 9/246 variables, 9/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 246/246 variables, and 215 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: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 435ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 46 ms.
Support contains 1 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 8 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 152/152 places, 94/94 transitions.
RANDOM walk for 40000 steps (541 resets) in 148 ms. (268 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (88 resets) in 71 ms. (555 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 1499535 steps, run timeout after 3001 ms. (steps per millisecond=499 ) properties seen :0 out of 1
Probabilistic random walk after 1499535 steps, saw 209234 distinct states, run finished after 3001 ms. (steps per millisecond=499 ) properties seen :0
[2026-05-23 10:47:15] [INFO ] Invariant cache hit.
[2026-05-23 10:47:15] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 0/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 12/224 variables, 8/196 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/224 variables, 3/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 0/199 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/225 variables, 1/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 0/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 12/237 variables, 3/204 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/237 variables, 1/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 0/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 9/246 variables, 9/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (OVERLAPS) 0/246 variables, 0/214 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 214 constraints, problems are : Problem set: 0 solved, 1 unsolved in 186 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/1 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 47/48 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/48 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 40/88 variables, 22/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/88 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 34/122 variables, 23/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/122 variables, 0/46 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 9/131 variables, 9/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/131 variables, 0/55 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 81/212 variables, 131/186 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/212 variables, 2/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/212 variables, 1/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,22 properties remain. new max is 65536
At refinement iteration 12 (INCLUDED_ONLY) 0/212 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 12/224 variables, 8/197 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/224 variables, 3/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/224 variables, 0/200 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 1/225 variables, 1/201 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/225 variables, 1/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/225 variables, 0/202 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (OVERLAPS) 12/237 variables, 3/205 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/237 variables, 1/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/237 variables, 0/206 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 9/246 variables, 9/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 0/246 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 246/246 variables, and 215 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: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 430ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 46 ms.
Support contains 1 out of 152 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 15 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 152/152 places, 94/94 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 152/152 places, 94/94 transitions.
Applied a total of 0 rules in 8 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
[2026-05-23 10:47:15] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 10:47:16] [INFO ] Implicit Places using invariants in 166 ms returned []
[2026-05-23 10:47:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 10:47:16] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-23 10:47:16] [INFO ] Implicit Places using invariants and state equation in 287 ms returned []
Implicit Place search using SMT with State Equation took 455 ms to find 0 implicit places.
Starting Z3 with timeout 200.0 s and query timeout 20000.0 ms
[2026-05-23 10:47:16] [INFO ] Redundant transitions in 3 ms returned []
Running 91 sub problems to find dead transitions.
[2026-05-23 10:47:16] [INFO ] Invariant cache hit.
[2026-05-23 10:47:16] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/149 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/149 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
SDD size :1.73023e+09 after 1.99282e+09
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 0/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
All remaining problems are real, not stopping.
At refinement iteration 3 (OVERLAPS) 2/151 variables, 7/60 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/151 variables, 0/60 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 5 (OVERLAPS) 94/245 variables, 151/211 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/245 variables, 2/213 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:18] [INFO ] Deduced a trap composed of 12 places in 77 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:18] [INFO ] Deduced a trap composed of 10 places in 73 ms of which 4 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/245 variables, 2/215 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/245 variables, 0/215 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (OVERLAPS) 1/246 variables, 1/216 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:20] [INFO ] Deduced a trap composed of 6 places in 66 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:20] [INFO ] Deduced a trap composed of 8 places in 75 ms of which 5 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:20] [INFO ] Deduced a trap composed of 8 places in 72 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:20] [INFO ] Deduced a trap composed of 7 places in 72 ms of which 3 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:20] [INFO ] Deduced a trap composed of 15 places in 89 ms of which 8 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:20] [INFO ] Deduced a trap composed of 16 places in 88 ms of which 9 ms to minimize.
At refinement iteration 10 (INCLUDED_ONLY) 0/246 variables, 6/222 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:21] [INFO ] Deduced a trap composed of 7 places in 48 ms of which 3 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/246 variables, 1/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/246 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 13 (OVERLAPS) 0/246 variables, 0/223 constraints. Problems are: Problem set: 0 solved, 91 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 223 constraints, problems are : Problem set: 0 solved, 91 unsolved in 7564 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 9/9 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/149 variables, 36/36 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/149 variables, 17/53 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/149 variables, 9/62 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/149 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 4 (OVERLAPS) 2/151 variables, 7/69 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:24] [INFO ] Deduced a trap composed of 11 places in 44 ms of which 5 ms to minimize.
At refinement iteration 5 (INCLUDED_ONLY) 0/151 variables, 1/70 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:25] [INFO ] Deduced a trap composed of 8 places in 40 ms of which 3 ms to minimize.
At refinement iteration 6 (INCLUDED_ONLY) 0/151 variables, 1/71 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/151 variables, 0/71 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 8 (OVERLAPS) 94/245 variables, 151/222 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/245 variables, 2/224 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/245 variables, 91/315 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:28] [INFO ] Deduced a trap composed of 6 places in 31 ms of which 2 ms to minimize.
At refinement iteration 11 (INCLUDED_ONLY) 0/245 variables, 1/316 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:36] [INFO ] Deduced a trap composed of 14 places in 57 ms of which 5 ms to minimize.
At refinement iteration 12 (INCLUDED_ONLY) 0/245 variables, 1/317 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/245 variables, 0/317 constraints. Problems are: Problem set: 0 solved, 91 unsolved
At refinement iteration 14 (OVERLAPS) 1/246 variables, 1/318 constraints. Problems are: Problem set: 0 solved, 91 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 246/246 variables, and 318 constraints, problems are : Problem set: 0 solved, 91 unsolved in 30018 ms.
Refiners :[Positive P Invariants (semi-flows): 36/36 constraints, Generalized P Invariants (flows): 24/24 constraints, State Equation: 152/152 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 91/91 constraints, Known Traps: 13/13 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 37607ms problems are : Problem set: 0 solved, 91 unsolved
Search for dead transitions found 0 dead transitions in 37608ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 38082 ms. Remains : 152/152 places, 94/94 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 152 transition count 94
Applied a total of 1 rules in 20 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 94 rows 152 cols
[2026-05-23 10:47:53] [INFO ] Computed 60 invariants in 3 ms
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-23 10:47:54] [INFO ] After 61ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-23 10:47:54] [INFO ] [Nat]Absence check using 36 positive place invariants in 11 ms returned sat
[2026-05-23 10:47:54] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 14 ms returned sat
[2026-05-23 10:47:54] [INFO ] After 86ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:54] [INFO ] Deduced a trap composed of 5 places in 82 ms of which 6 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 10:47:54] [INFO ] Deduced a trap composed of 9 places in 64 ms of which 5 ms to minimize.
[2026-05-23 10:47:54] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 176 ms
TRAPS : Iteration 1
[2026-05-23 10:47:54] [INFO ] After 291ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-23 10:47:54] [INFO ] After 388ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Over-approximation ignoring read arcs solved 0 properties in 483 ms.
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 152 transition count 94
Applied a total of 1 rules in 13 ms. Remains 152 /152 variables (removed 0) and now considering 94/94 (removed 0) transitions.
Running SMT prover for 1 properties.
[2026-05-23 10:47:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-23 10:47:54] [INFO ] After 42ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
Starting Z3 with timeout 450.0 s and query timeout 45000.0 ms
[2026-05-23 10:47:54] [INFO ] [Nat]Absence check using 36 positive place invariants in 10 ms returned sat
[2026-05-23 10:47:54] [INFO ] [Nat]Absence check using 36 positive and 24 generalized place invariants in 13 ms returned sat
[2026-05-23 10:47:54] [INFO ] After 77ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-23 10:47:54] [INFO ] After 90ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-23 10:47:54] [INFO ] After 170ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-23 10:47:54] [INFO ] Flatten gal took : 22 ms
[2026-05-23 10:47:54] [INFO ] Flatten gal took : 17 ms
[2026-05-23 10:47:54] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11264292439159675596.gal : 6 ms
[2026-05-23 10:47:54] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4213333090382029879.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11264292439159675596.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4213333090382029879.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality4213333090382029879.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :4 after 14
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :14 after 31
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :31 after 124
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :124 after 1048
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :1048 after 2168
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :2168 after 17432
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :83996 after 91636
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :455944 after 643848
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :643848 after 1.8881e+07
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :1.8881e+07 after 7.19966e+07
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :7.19966e+07 after 8.64278e+07
Invariant property smplace_23 does not hold.
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :8.64278e+07 after 2.2663e+08
SDD proceeding with computation,21 properties remain. new max is 65536
SDD size :1.99282e+09 after 2.51553e+09
SDD proceeding with computation,1 properties remain. new max is 32768
SDD size :2.2663e+08 after 5.31138e+08
Detected timeout of ITS tools.
[2026-05-23 10:48:09] [INFO ] Flatten gal took : 16 ms
[2026-05-23 10:48:09] [INFO ] Applying decomposition
[2026-05-23 10:48:09] [INFO ] Flatten gal took : 14 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph7432579362043231775.txt' '-o' '/tmp/graph7432579362043231775.bin' '-w' '/tmp/graph7432579362043231775.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph7432579362043231775.bin' '-l' '-1' '-v' '-w' '/tmp/graph7432579362043231775.weights' '-q' '0' '-e' '0.001'
[2026-05-23 10:48:10] [INFO ] Decomposing Gal with order
[2026-05-23 10:48:10] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 10:48:10] [INFO ] Removed a total of 19 redundant transitions.
[2026-05-23 10:48:10] [INFO ] Flatten gal took : 132 ms
[2026-05-23 10:48:10] [INFO ] Fuse similar labels procedure discarded/fused a total of 4 labels/synchronizations in 10 ms.
[2026-05-23 10:48:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12572683017824170697.gal : 8 ms
[2026-05-23 10:48:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9868348171231548357.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality12572683017824170697.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9868348171231548357.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...308
Loading property file /tmp/ReachabilityCardinality9868348171231548357.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :2 after 4
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :4 after 726
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :10748 after 47644
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :47644 after 9.40653e+07
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :3.40239e+10 after 4.48406e+10
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,8.75105e+11,0.919512,28536,2580,680,55256,1882,247,81087,137,7625,0
Total reachable state count : 875104699030

Verifying 1 reachability properties.
Invariant property smplace_32 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_32,4464,0.922402,28664,67,100,55256,1882,250,81087,140,7625,0
ITS tools runner thread asked to quit. Dying gracefully.
Over-approximation ignoring read arcs solved 0 properties in 16797 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-23 10:48:11] [INFO ] Flatten gal took : 14 ms
[2026-05-23 10:48:11] [INFO ] Applying decomposition
[2026-05-23 10:48:11] [INFO ] Flatten gal took : 15 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/convert-linux64' '-i' '/tmp/graph2747106883661320521.txt' '-o' '/tmp/graph2747106883661320521.bin' '-w' '/tmp/graph2747106883661320521.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202505121319/bin/louvain-linux64' '/tmp/graph2747106883661320521.bin' '-l' '-1' '-v' '-w' '/tmp/graph2747106883661320521.weights' '-q' '0' '-e' '0.001'
[2026-05-23 10:48:11] [INFO ] Decomposing Gal with order
[2026-05-23 10:48:11] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-23 10:48:11] [INFO ] Removed a total of 20 redundant transitions.
[2026-05-23 10:48:11] [INFO ] Flatten gal took : 49 ms
[2026-05-23 10:48:11] [INFO ] Fuse similar labels procedure discarded/fused a total of 13 labels/synchronizations in 7 ms.
[2026-05-23 10:48:11] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6188829924015866264.gal : 9 ms
[2026-05-23 10:48:11] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7559025681187340583.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6188829924015866264.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7559025681187340583.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...307
Loading property file /tmp/ReachabilityCardinality7559025681187340583.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :2 after 3
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :3 after 5
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :5 after 1069
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :1069 after 213765
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1.24411e+09 after 1.26391e+09
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :1.66805e+11 after 1.69145e+11
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,1.60031e+12,1.64916,40720,1714,433,95082,1414,329,79152,145,6139,0
Total reachable state count : 1600305869653

Verifying 1 reachability properties.
Invariant property smplace_32 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_32,240,1.65369,40720,61,74,95082,1414,332,79152,148,6139,0
Able to resolve query StableMarking after proving 112 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK PARIKH_WALK MARKED_SUFFIX_TEST DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL USE_NUPN
Total runtime 263840 ms.

BK_STOP 1779533293447

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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-10a"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="gold2025"
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 2-5973"
echo " Executing tool gold2025"
echo " Input is DES-PT-10a, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r096-smll-177946996500228"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DES-PT-10a.tgz
mv DES-PT-10a execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;