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Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r056-smll-177946903000322
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for CloudDeployment-PT-7a

Execution Summary
Max Memory
Used (MB)		 Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
1378.439 171269.00 391568.00 1543.90 T normal

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.r056-smll-177946903000322.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 itstools
Input is CloudDeployment-PT-7a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r056-smll-177946903000322
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 916K
-rw-r--r-- 1 mcc users 8.6K Mar 6 11:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 98K Mar 6 11:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Mar 6 11:19 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Mar 6 11:19 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 08:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 11:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 118K Mar 6 11:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 6 11:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K Mar 6 11:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 420K 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1779479643132

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CloudDeployment-PT-7a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-22 19:54:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-22 19:54:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 19:54:05] [INFO ] Load time of PNML (sax parser for PT used): 220 ms
[2026-05-22 19:54:05] [INFO ] Transformed 264 places.
[2026-05-22 19:54:05] [INFO ] Transformed 1174 transitions.
[2026-05-22 19:54:05] [INFO ] Found NUPN structural information;
[2026-05-22 19:54:05] [INFO ] Parsed PT model containing 264 places and 1174 transitions and 7331 arcs in 391 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 264/264 places, 1174/1174 transitions.
Graph (trivial) has 309 edges and 264 vertex of which 70 / 264 are part of one of the 21 SCC in 11 ms
Free SCC test removed 49 places
Ensure Unique test removed 301 transitions
Reduce isomorphic transitions removed 301 transitions.
Ensure Unique test removed 14 places
Iterating post reduction 0 with 14 rules applied. Total rules applied 15 place count 201 transition count 873
Performed 21 Post agglomeration using F-continuation condition.Transition count delta: -91
Deduced a syphon composed of 21 places in 5 ms
Reduce places removed 21 places and 0 transitions.
Iterating global reduction 1 with 42 rules applied. Total rules applied 57 place count 180 transition count 964
Applied a total of 57 rules in 127 ms. Remains 180 /264 variables (removed 84) and now considering 964/1174 (removed 210) transitions.
[2026-05-22 19:54:05] [INFO ] Flow matrix only has 412 transitions (discarded 552 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-5779308211459061364.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-6832935263696609379.kers'
[2026-05-22 19:54:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-5779308211459061364.kers, --Pflows, --basisKERS=/tmp/petrispot-output-6832935263696609379.kers]
Normalized transition count is 411 out of 412 initially.
Culling duplicate invariants (modulo rational): removing 13 columns.
Culled 13 columns in 0 ms.
// Phase 1: matrix 411 rows 167 cols 1285 entries
Finished phase 1 with 151 SingleSign rule and 1 generalized
[2026-05-22 19:54:05] [INFO ] Computed 28 invariants in 2 ms
Computed 28 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-6832935263696609379.kers
Total runtime 4 ms.
[2026-05-22 19:54:06] [INFO ] Implicit Places using invariants in 826 ms returned []
[2026-05-22 19:54:06] [INFO ] Flow matrix only has 412 transitions (discarded 552 similar events)
[2026-05-22 19:54:06] [INFO ] Invariant cache hit.
[2026-05-22 19:54:06] [INFO ] State equation strengthened by 282 read => feed constraints.
[2026-05-22 19:54:09] [INFO ] Implicit Places using invariants and state equation in 3040 ms returned []
Implicit Place search using SMT with State Equation took 3920 ms to find 0 implicit places.
Running 963 sub problems to find dead transitions.
[2026-05-22 19:54:09] [INFO ] Flow matrix only has 412 transitions (discarded 552 similar events)
[2026-05-22 19:54:09] [INFO ] Invariant cache hit.
[2026-05-22 19:54:09] [INFO ] State equation strengthened by 282 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
At refinement iteration 0 (INCLUDED_ONLY) 0/179 variables, 179/179 constraints. Problems are: Problem set: 0 solved, 963 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/179 variables, 28/207 constraints. Problems are: Problem set: 0 solved, 963 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/179 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 963 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 3 (OVERLAPS) 411/590 variables, 179/386 constraints. Problems are: Problem set: 0 solved, 963 unsolved
SMT process timed out in 31453ms, After SMT, problems are : Problem set: 0 solved, 963 unsolved
Search for dead transitions found 0 dead transitions in 31500ms
Starting structural reductions in LIVENESS mode, iteration 1 : 180/264 places, 964/1174 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 35635 ms. Remains : 180/264 places, 964/1174 transitions.
Discarding 736 transitions out of 964. Remains 228
Initial state reduction rules removed 1 formulas.
[2026-05-22 19:54:41] [INFO ] Flatten gal took : 325 ms
[2026-05-22 19:54:42] [INFO ] Flatten gal took : 286 ms
RANDOM walk for 40000 steps (714 resets) in 4570 ms. (8 steps per ms) remains 15/227 properties
[2026-05-22 19:54:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11073661096618285406.gal : 186 ms
BEST_FIRST walk for 4004 steps (8 resets) in 56 ms. (70 steps per ms) remains 15/15 properties
[2026-05-22 19:54:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18009752674190210770.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11073661096618285406.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18009752674190210770.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 4004 steps (8 resets) in 54 ms. (72 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 15/15 properties

BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 30 ms. (129 steps per ms) remains 15/15 properties
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4003 steps (8 resets) in 25 ms. (153 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 21 ms. (182 steps per ms) remains 15/15 properties
[2026-05-22 19:54:42] [INFO ] Flow matrix only has 412 transitions (discarded 552 similar events)
[2026-05-22 19:54:42] [INFO ] Invariant cache hit.
[2026-05-22 19:54:42] [INFO ] State equation strengthened by 282 read => feed constraints.
Loading property file /tmp/ReachabilityCardinality18009752674190210770.prop.
At refinement iteration 0 (INCLUDED_ONLY) 0/45 variables, 45/45 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/45 variables, 14/59 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/45 variables, 0/59 constraints. Problems are: Problem set: 0 solved, 15 unsolved
SDD proceeding with computation,15 properties remain. new max is 4
SDD size :1 after 8
SDD proceeding with computation,15 properties remain. new max is 8
SDD size :8 after 10
SDD proceeding with computation,15 properties remain. new max is 16
SDD size :10 after 17
SDD proceeding with computation,15 properties remain. new max is 32
SDD size :17 after 19
SDD proceeding with computation,15 properties remain. new max is 64
SDD size :19 after 29
SDD proceeding with computation,15 properties remain. new max is 128
SDD size :29 after 193
SDD proceeding with computation,15 properties remain. new max is 256
SDD size :193 after 826
SDD proceeding with computation,15 properties remain. new max is 512
SDD size :826 after 203513
At refinement iteration 3 (OVERLAPS) 134/179 variables, 14/73 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/179 variables, 134/207 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/179 variables, 0/207 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 6 (OVERLAPS) 411/590 variables, 179/386 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/590 variables, 281/667 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/590 variables, 0/667 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 9 (OVERLAPS) 1/591 variables, 1/668 constraints. Problems are: Problem set: 0 solved, 15 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/591 variables, 1/669 constraints. Problems are: Problem set: 0 solved, 15 unsolved
Reachability property qltransition_172 is true.
Reachability property qltransition_135 is true.
Reachability property qltransition_124 is true.
Reachability property qltransition_123 is true.
Reachability property qltransition_114 is true.
At refinement iteration 11 (INCLUDED_ONLY) 0/591 variables, 0/669 constraints. Problems are: Problem set: 5 solved, 10 unsolved
Reachability property qltransition_113 is true.
SDD proceeding with computation,9 properties remain. new max is 512
SDD size :203513 after 2.68063e+06
SDD proceeding with computation,9 properties remain. new max is 1024
SDD size :2.68063e+06 after 3.99394e+06
At refinement iteration 12 (OVERLAPS) 1/592 variables, 1/670 constraints. Problems are: Problem set: 6 solved, 9 unsolved
Reachability property qltransition_106 is true.
SDD proceeding with computation,8 properties remain. new max is 1024
SDD size :3.99394e+06 after 1.33904e+07
At refinement iteration 13 (INCLUDED_ONLY) 0/592 variables, 0/670 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 14 (OVERLAPS) 0/592 variables, 0/670 constraints. Problems are: Problem set: 7 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Real declared 592/592 variables, and 670 constraints, problems are : Problem set: 7 solved, 8 unsolved in 4532 ms.
Refiners :[Domain max(s): 180/180 constraints, Generalized P Invariants (flows): 28/28 constraints, State Equation: 180/180 constraints, ReadFeed: 282/282 constraints, PredecessorRefiner: 15/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 7 solved, 8 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/38 variables, 38/38 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/38 variables, 14/52 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/38 variables, 0/52 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 3 (OVERLAPS) 141/179 variables, 14/66 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/179 variables, 141/207 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/179 variables, 0/207 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 6 (OVERLAPS) 411/590 variables, 179/386 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/590 variables, 281/667 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/590 variables, 7/674 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/590 variables, 0/674 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 10 (OVERLAPS) 1/591 variables, 1/675 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/591 variables, 1/676 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/591 variables, 0/676 constraints. Problems are: Problem set: 7 solved, 8 unsolved
At refinement iteration 13 (OVERLAPS) 1/592 variables, 1/677 constraints. Problems are: Problem set: 7 solved, 8 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 592/592 variables, and 677 constraints, problems are : Problem set: 7 solved, 8 unsolved in 5013 ms.
Refiners :[Domain max(s): 180/180 constraints, Generalized P Invariants (flows): 28/28 constraints, State Equation: 180/180 constraints, ReadFeed: 282/282 constraints, PredecessorRefiner: 8/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 9610ms problems are : Problem set: 7 solved, 8 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 38 out of 180 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 180/180 places, 964/964 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 161 transitions
Reduce isomorphic transitions removed 161 transitions.
Iterating post reduction 0 with 161 rules applied. Total rules applied 161 place count 180 transition count 803
Discarding 9 places :
Symmetric choice reduction at 1 with 9 rule applications. Total rules 170 place count 171 transition count 766
Iterating global reduction 1 with 9 rules applied. Total rules applied 179 place count 171 transition count 766
Discarding 4 places :
Symmetric choice reduction at 1 with 4 rule applications. Total rules 183 place count 167 transition count 762
Iterating global reduction 1 with 4 rules applied. Total rules applied 187 place count 167 transition count 762
Discarding 3 places :
Symmetric choice reduction at 1 with 3 rule applications. Total rules 190 place count 164 transition count 759
Iterating global reduction 1 with 3 rules applied. Total rules applied 193 place count 164 transition count 759
Discarding 2 places :
Symmetric choice reduction at 1 with 2 rule applications. Total rules 195 place count 162 transition count 757
Iterating global reduction 1 with 2 rules applied. Total rules applied 197 place count 162 transition count 757
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 198 place count 161 transition count 756
Iterating global reduction 1 with 1 rules applied. Total rules applied 199 place count 161 transition count 756
Drop transitions (Redundant composition of simpler transitions.) removed 140 transitions
Redundant transition composition rules discarded 140 transitions
Iterating global reduction 1 with 140 rules applied. Total rules applied 339 place count 161 transition count 616
Applied a total of 339 rules in 187 ms. Remains 161 /180 variables (removed 19) and now considering 616/964 (removed 348) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 188 ms. Remains : 161/180 places, 616/964 transitions.
RANDOM walk for 4000000 steps (56434 resets) in 33444 ms. (119 steps per ms) remains 4/8 properties
BEST_FIRST walk for 4000004 steps (7994 resets) in 7558 ms. (529 steps per ms) remains 4/4 properties
BEST_FIRST walk for 4000004 steps (5917 resets) in 9189 ms. (435 steps per ms) remains 3/4 properties
BEST_FIRST walk for 4000004 steps (4170 resets) in 4943 ms. (809 steps per ms) remains 1/3 properties
[2026-05-22 19:55:07] [INFO ] Flow matrix only has 252 transitions (discarded 364 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2221524156687949400.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2614579416869905608.kers'
[2026-05-22 19:55:07] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2221524156687949400.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2614579416869905608.kers]
Culling duplicate invariants (modulo rational): removing 13 columns.
Culled 13 columns in 0 ms.
// Phase 1: matrix 252 rows 148 cols 771 entries
Finished phase 1 with 132 SingleSign rule and 1 generalized
[2026-05-22 19:55:07] [INFO ] Computed 28 invariants in 1 ms
Computed 28 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-2614579416869905608.kers
Total runtime 3 ms.
[2026-05-22 19:55:07] [INFO ] State equation strengthened by 168 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 88/96 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/96 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/160 variables, 21/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 252/412 variables, 160/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
All remaining problems are real, not stopping.
At refinement iteration 6 (INCLUDED_ONLY) 0/412 variables, 168/356 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/412 variables, 0/356 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/413 variables, 1/357 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/413 variables, 0/357 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 0/413 variables, 0/357 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 413/413 variables, and 357 constraints, problems are : Problem set: 0 solved, 1 unsolved in 307 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 161/161 constraints, ReadFeed: 168/168 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
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 88/96 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/96 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/160 variables, 21/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/160 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 252/412 variables, 160/188 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/412 variables, 168/356 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/412 variables, 1/357 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/412 variables, 0/357 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 1/413 variables, 1/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/413 variables, 0/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/413 variables, 0/358 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 413/413 variables, and 358 constraints, problems are : Problem set: 0 solved, 1 unsolved in 544 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 161/161 constraints, ReadFeed: 168/168 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 896ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 60 ms.
Support contains 8 out of 161 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 161/161 places, 616/616 transitions.
Discarding 3 places :
Symmetric choice reduction at 0 with 3 rule applications. Total rules 3 place count 158 transition count 592
Iterating global reduction 0 with 3 rules applied. Total rules applied 6 place count 158 transition count 592
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 7 place count 158 transition count 592
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 8 place count 157 transition count 591
Applied a total of 8 rules in 77 ms. Remains 157 /161 variables (removed 4) and now considering 591/616 (removed 25) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 78 ms. Remains : 157/161 places, 591/616 transitions.
RANDOM walk for 4000000 steps (48233 resets) in 15682 ms. (255 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000004 steps (6871 resets) in 5185 ms. (771 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2681282 steps, run timeout after 15001 ms. (steps per millisecond=178 ) properties seen :0 out of 1
Probabilistic random walk after 2681282 steps, saw 449408 distinct states, run finished after 15010 ms. (steps per millisecond=178 ) properties seen :0
[2026-05-22 19:55:29] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11981886702507202020.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10843482237242235774.kers'
[2026-05-22 19:55:29] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11981886702507202020.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10843482237242235774.kers]
Culling duplicate invariants (modulo rational): removing 13 columns.
Culled 13 columns in 0 ms.
// Phase 1: matrix 248 rows 144 cols 750 entries
Finished phase 1 with 128 SingleSign rule and 1 generalized
[2026-05-22 19:55:29] [INFO ] Computed 28 invariants in 1 ms
Computed 28 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-10843482237242235774.kers
Total runtime 2 ms.
[2026-05-22 19:55:29] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 85/93 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/93 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/157 variables, 21/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/157 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 248/405 variables, 157/185 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/405 variables, 9/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/405 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/405 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 405/405 variables, and 194 constraints, problems are : Problem set: 0 solved, 1 unsolved in 236 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 157/157 constraints, ReadFeed: 9/9 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
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 85/93 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/93 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/157 variables, 21/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/157 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 248/405 variables, 157/185 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/405 variables, 9/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/405 variables, 1/195 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/405 variables, 0/195 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/405 variables, 0/195 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 405/405 variables, and 195 constraints, problems are : Problem set: 0 solved, 1 unsolved in 318 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 157/157 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 570ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 31 ms.
Support contains 8 out of 157 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 157/157 places, 591/591 transitions.
Applied a total of 0 rules in 16 ms. Remains 157 /157 variables (removed 0) and now considering 591/591 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 16 ms. Remains : 157/157 places, 591/591 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 157/157 places, 591/591 transitions.
Applied a total of 0 rules in 17 ms. Remains 157 /157 variables (removed 0) and now considering 591/591 (removed 0) transitions.
[2026-05-22 19:55:29] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
[2026-05-22 19:55:29] [INFO ] Invariant cache hit.
[2026-05-22 19:55:30] [INFO ] Implicit Places using invariants in 203 ms returned []
[2026-05-22 19:55:30] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
[2026-05-22 19:55:30] [INFO ] Invariant cache hit.
[2026-05-22 19:55:30] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 19:55:30] [INFO ] Implicit Places using invariants and state equation in 441 ms returned []
Implicit Place search using SMT with State Equation took 655 ms to find 0 implicit places.
[2026-05-22 19:55:30] [INFO ] Redundant transitions in 50 ms returned []
Running 542 sub problems to find dead transitions.
[2026-05-22 19:55:30] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
[2026-05-22 19:55:30] [INFO ] Invariant cache hit.
[2026-05-22 19:55:30] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/150 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/150 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 2 (OVERLAPS) 7/157 variables, 7/28 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/157 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 4 (OVERLAPS) 248/405 variables, 157/185 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/405 variables, 9/194 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/405 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 542 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 405/405 variables, and 194 constraints, problems are : Problem set: 0 solved, 542 unsolved in 30041 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 157/157 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 542/542 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 542 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/150 variables, 21/21 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/150 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 2 (OVERLAPS) 7/157 variables, 7/28 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/157 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 4 (OVERLAPS) 248/405 variables, 157/185 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/405 variables, 9/194 constraints. Problems are: Problem set: 0 solved, 542 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/405 variables, 542/736 constraints. Problems are: Problem set: 0 solved, 542 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 405/405 variables, and 736 constraints, problems are : Problem set: 0 solved, 542 unsolved in 30024 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 157/157 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 542/542 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60554ms problems are : Problem set: 0 solved, 542 unsolved
Search for dead transitions found 0 dead transitions in 60557ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 61295 ms. Remains : 157/157 places, 591/591 transitions.
RANDOM walk for 4000000 steps (48277 resets) in 14503 ms. (275 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000003 steps (6861 resets) in 5090 ms. (785 steps per ms) remains 1/1 properties
Interrupted probabilistic random walk after 2694659 steps, run timeout after 15001 ms. (steps per millisecond=179 ) properties seen :0 out of 1
Probabilistic random walk after 2694659 steps, saw 451820 distinct states, run finished after 15001 ms. (steps per millisecond=179 ) properties seen :0
[2026-05-22 19:56:51] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
[2026-05-22 19:56:51] [INFO ] Invariant cache hit.
[2026-05-22 19:56:51] [INFO ] State equation strengthened by 9 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 85/93 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/93 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/157 variables, 21/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/157 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 248/405 variables, 157/185 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/405 variables, 9/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/405 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/405 variables, 0/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 405/405 variables, and 194 constraints, problems are : Problem set: 0 solved, 1 unsolved in 316 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 157/157 constraints, ReadFeed: 9/9 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
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 85/93 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/93 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 64/157 variables, 21/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/157 variables, 0/28 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 248/405 variables, 157/185 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/405 variables, 9/194 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/405 variables, 1/195 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/405 variables, 0/195 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 0/405 variables, 0/195 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 405/405 variables, and 195 constraints, problems are : Problem set: 0 solved, 1 unsolved in 366 ms.
Refiners :[Generalized P Invariants (flows): 28/28 constraints, State Equation: 157/157 constraints, ReadFeed: 9/9 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 690ms problems are : Problem set: 0 solved, 1 unsolved
Parikh walk visited 0 properties in 29 ms.
Support contains 8 out of 157 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 157/157 places, 591/591 transitions.
Applied a total of 0 rules in 15 ms. Remains 157 /157 variables (removed 0) and now considering 591/591 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 15 ms. Remains : 157/157 places, 591/591 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 157/157 places, 591/591 transitions.
Applied a total of 0 rules in 13 ms. Remains 157 /157 variables (removed 0) and now considering 591/591 (removed 0) transitions.
[2026-05-22 19:56:52] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
[2026-05-22 19:56:52] [INFO ] Invariant cache hit.
[2026-05-22 19:56:52] [INFO ] Implicit Places using invariants in 170 ms returned []
[2026-05-22 19:56:52] [INFO ] Flow matrix only has 248 transitions (discarded 343 similar events)
[2026-05-22 19:56:52] [INFO ] Invariant cache hit.
[2026-05-22 19:56:52] [INFO ] State equation strengthened by 9 read => feed constraints.
[2026-05-22 19:56:52] [INFO ] Implicit Places using invariants and state equation in 360 ms returned []
Implicit Place search using SMT with State Equation took 535 ms to find 0 implicit places.
[2026-05-22 19:56:52] [INFO ] Redundant transitions in 6 ms returned []
Skipped dead transition search.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 564 ms. Remains : 157/157 places, 591/591 transitions.
Attempting over-approximation, by ignoring read arcs.
Graph (trivial) has 111 edges and 157 vertex of which 49 / 157 are part of one of the 7 SCC in 1 ms
Free SCC test removed 42 places
Drop transitions (Empty/Sink Transition effects.) removed 56 transitions
Ensure Unique test removed 343 transitions
Reduce isomorphic transitions removed 399 transitions.
Ensure Unique test removed 13 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 29 transitions
Trivial Post-agglo rules discarded 29 transitions
Performed 29 trivial Post agglomeration. Transition count delta: 29
Iterating post reduction 0 with 42 rules applied. Total rules applied 43 place count 102 transition count 163
Reduce places removed 29 places and 0 transitions.
Iterating post reduction 1 with 29 rules applied. Total rules applied 72 place count 73 transition count 163
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 12 Pre rules applied. Total rules applied 72 place count 73 transition count 151
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 2 with 24 rules applied. Total rules applied 96 place count 61 transition count 151
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 102 place count 55 transition count 145
Iterating global reduction 2 with 6 rules applied. Total rules applied 108 place count 55 transition count 145
Discarding 6 places :
Symmetric choice reduction at 2 with 6 rule applications. Total rules 114 place count 49 transition count 103
Iterating global reduction 2 with 6 rules applied. Total rules applied 120 place count 49 transition count 103
Ensure Unique test removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 2 with 6 rules applied. Total rules applied 126 place count 49 transition count 97
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 128 place count 48 transition count 96
Drop transitions (Redundant composition of simpler transitions.) removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 3 with 14 rules applied. Total rules applied 142 place count 48 transition count 82
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 7 Pre rules applied. Total rules applied 142 place count 48 transition count 75
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 3 with 14 rules applied. Total rules applied 156 place count 41 transition count 75
Applied a total of 156 rules in 31 ms. Remains 41 /157 variables (removed 116) and now considering 75/591 (removed 516) transitions.
Running SMT prover for 1 properties.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7801633022267786675.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2572321725169964120.kers'
[2026-05-22 19:56:52] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7801633022267786675.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2572321725169964120.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 75 rows 41 cols 280 entries
Finished phase 1 with 25 SingleSign rule and 1 generalized
[2026-05-22 19:56:52] [INFO ] Computed 15 invariants in 0 ms
Computed 15 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-2572321725169964120.kers
Total runtime 2 ms.
[2026-05-22 19:56:52] [INFO ] [Real]Absence check using 0 positive and 15 generalized place invariants in 3 ms returned sat
[2026-05-22 19:56:52] [INFO ] After 73ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2026-05-22 19:56:52] [INFO ] [Nat]Absence check using 0 positive and 15 generalized place invariants in 4 ms returned sat
[2026-05-22 19:56:52] [INFO ] After 33ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
TRAPS : Iteration 0
[2026-05-22 19:56:52] [INFO ] After 43ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
[2026-05-22 19:56:52] [INFO ] After 79ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2026-05-22 19:56:52] [INFO ] Flatten gal took : 8 ms
[2026-05-22 19:56:52] [INFO ] Flatten gal took : 6 ms
[2026-05-22 19:56:52] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3353589018328028942.gal : 2 ms
[2026-05-22 19:56:52] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5772802294926196397.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3353589018328028942.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5772802294926196397.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality5772802294926196397.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :7 after 8
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :8 after 31
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :31 after 150
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :150 after 190
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :190 after 3173
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,107495,0.032331,4940,2,612,11,4650,7,0,243,2921,0
Total reachable state count : 107495

Verifying 1 reachability properties.
Reachability property qltransition_94 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_94,1,0.033262,4968,2,42,11,4650,7,0,252,2921,0
Over-approximation ignoring read arcs solved 0 properties in 269 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
[2026-05-22 19:56:53] [INFO ] Flatten gal took : 71 ms
[2026-05-22 19:56:53] [INFO ] Applying decomposition
[2026-05-22 19:56:53] [INFO ] Flatten gal took : 58 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/convert-linux64' '-i' '/tmp/graph4154795205018303214.txt' '-o' '/tmp/graph4154795205018303214.bin' '-w' '/tmp/graph4154795205018303214.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph4154795205018303214.bin' '-l' '-1' '-v' '-w' '/tmp/graph4154795205018303214.weights' '-q' '0' '-e' '0.001'
[2026-05-22 19:56:53] [INFO ] Decomposing Gal with order
[2026-05-22 19:56:53] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-22 19:56:53] [INFO ] Removed a total of 1609 redundant transitions.
[2026-05-22 19:56:53] [INFO ] Flatten gal took : 361 ms
[2026-05-22 19:56:54] [INFO ] Fuse similar labels procedure discarded/fused a total of 205 labels/synchronizations in 41 ms.
[2026-05-22 19:56:54] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16307103510086897287.gal : 13 ms
[2026-05-22 19:56:54] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11766136280388191097.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16307103510086897287.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11766136280388191097.prop' '--nowitness'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...309
Loading property file /tmp/ReachabilityCardinality11766136280388191097.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 16
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :16 after 997
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :997 after 13139
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :13139 after 4.81758e+07
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,6.63848e+09,0.243939,10096,272,110,9565,1031,857,17446,241,3656,0
Total reachable state count : 6638479029

Verifying 1 reachability properties.
Reachability property qltransition_94 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_94,1,0.245757,10316,48,29,9565,1031,878,17446,245,3656,81
Able to resolve query QuasiLiveness after proving 228 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE USE_NUPN
Total runtime 169372 ms.

BK_STOP 1779479814401

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -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="CloudDeployment-PT-7a"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
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 itstools"
echo " Input is CloudDeployment-PT-7a, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r056-smll-177946903000322"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudDeployment-PT-7a.tgz
mv CloudDeployment-PT-7a execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

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