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.r136-smll-177955811000227.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)
...................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is FlexibleBarrier-PT-10b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r136-smll-177955811000227
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 804K
-rw-r--r-- 1 mcc users 7.6K Mar 7 06:45 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 7 06:45 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Mar 7 06:45 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 7 06:45 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 10:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 15 10:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.3K Mar 7 06:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 91K Mar 7 06:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K Mar 7 06:45 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Mar 7 06:45 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:12 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 374K 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 1779617847248

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FlexibleBarrier-PT-10b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-24 10:17:29] [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]
[2026-05-24 10:17:29] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 10:17:30] [INFO ] Load time of PNML (sax parser for PT used): 311 ms
[2026-05-24 10:17:30] [INFO ] Transformed 1402 places.
[2026-05-24 10:17:30] [INFO ] Transformed 1613 transitions.
[2026-05-24 10:17:30] [INFO ] Found NUPN structural information;
[2026-05-24 10:17:30] [INFO ] Parsed PT model containing 1402 places and 1613 transitions and 4025 arcs in 502 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 1402/1402 places, 1613/1613 transitions.
Graph (trivial) has 1370 edges and 1402 vertex of which 62 / 1402 are part of one of the 10 SCC in 28 ms
Free SCC test removed 52 places
Ensure Unique test removed 53 transitions
Reduce isomorphic transitions removed 53 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 359 transitions
Trivial Post-agglo rules discarded 359 transitions
Performed 359 trivial Post agglomeration. Transition count delta: 359
Iterating post reduction 0 with 359 rules applied. Total rules applied 360 place count 1350 transition count 1201
Reduce places removed 359 places and 0 transitions.
Iterating post reduction 1 with 359 rules applied. Total rules applied 719 place count 991 transition count 1201
Performed 90 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 90 Pre rules applied. Total rules applied 719 place count 991 transition count 1111
Deduced a syphon composed of 90 places in 8 ms
Reduce places removed 90 places and 0 transitions.
Iterating global reduction 2 with 180 rules applied. Total rules applied 899 place count 901 transition count 1111
Performed 575 Post agglomeration using F-continuation condition.Transition count delta: 575
Deduced a syphon composed of 575 places in 1 ms
Reduce places removed 575 places and 0 transitions.
Iterating global reduction 2 with 1150 rules applied. Total rules applied 2049 place count 326 transition count 536
Applied a total of 2049 rules in 282 ms. Remains 326 /1402 variables (removed 1076) and now considering 536/1613 (removed 1077) transitions.
[2026-05-24 10:17:30] [INFO ] Flow matrix only has 507 transitions (discarded 29 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3615063761102333660.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14185619161883043847.kers'
[2026-05-24 10:17:30] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3615063761102333660.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14185619161883043847.kers]
Normalized transition count is 506 out of 507 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 506 rows 326 cols 1711 entries
Finished phase 1 with 314 SingleSign rule and 0 generalized
[2026-05-24 10:17:30] [INFO ] Computed 12 invariants in 3 ms
Computed 12 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-14185619161883043847.kers
Total runtime 4 ms.
[2026-05-24 10:17:31] [INFO ] Implicit Places using invariants in 1404 ms returned []
[2026-05-24 10:17:31] [INFO ] Flow matrix only has 507 transitions (discarded 29 similar events)
[2026-05-24 10:17:31] [INFO ] Invariant cache hit.
[2026-05-24 10:17:32] [INFO ] State equation strengthened by 61 read => feed constraints.
[2026-05-24 10:17:33] [INFO ] Implicit Places using invariants and state equation in 1879 ms returned []
Implicit Place search using SMT with State Equation took 3337 ms to find 0 implicit places.
Running 535 sub problems to find dead transitions.
[2026-05-24 10:17:33] [INFO ] Flow matrix only has 507 transitions (discarded 29 similar events)
[2026-05-24 10:17:33] [INFO ] Invariant cache hit.
[2026-05-24 10:17:33] [INFO ] State equation strengthened by 61 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/325 variables, 325/325 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/325 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 2 (OVERLAPS) 1/326 variables, 12/337 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/326 variables, 1/338 constraints. Problems are: Problem set: 0 solved, 535 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 326/833 variables, and 338 constraints, problems are : Problem set: 0 solved, 535 unsolved in 30048 ms.
Refiners :[Domain max(s): 326/326 constraints, Positive P Invariants (semi-flows): 12/12 constraints, State Equation: 0/326 constraints, ReadFeed: 0/61 constraints, PredecessorRefiner: 535/535 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 535 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/325 variables, 325/325 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/325 variables, 0/325 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 2 (OVERLAPS) 1/326 variables, 12/337 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/326 variables, 1/338 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/326 variables, 0/338 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 5 (OVERLAPS) 506/832 variables, 326/664 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/832 variables, 60/724 constraints. Problems are: Problem set: 0 solved, 535 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/832 variables, 535/1259 constraints. Problems are: Problem set: 0 solved, 535 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 832/833 variables, and 1259 constraints, problems are : Problem set: 0 solved, 535 unsolved in 30027 ms.
Refiners :[Domain max(s): 326/326 constraints, Positive P Invariants (semi-flows): 12/12 constraints, State Equation: 326/326 constraints, ReadFeed: 60/61 constraints, PredecessorRefiner: 535/535 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61054ms problems are : Problem set: 0 solved, 535 unsolved
Search for dead transitions found 0 dead transitions in 61094ms
Starting structural reductions in LIVENESS mode, iteration 1 : 326/1402 places, 536/1613 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 64799 ms. Remains : 326/1402 places, 536/1613 transitions.
Discarding 303 transitions out of 536. Remains 233
Initial state reduction rules removed 1 formulas.
[2026-05-24 10:18:35] [INFO ] Flatten gal took : 267 ms
[2026-05-24 10:18:35] [INFO ] Flatten gal took : 77 ms
[2026-05-24 10:18:35] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5385382200149486477.gal : 32 ms
[2026-05-24 10:18:35] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality612117102095851518.prop : 8 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/ReachabilityCardinality5385382200149486477.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality612117102095851518.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 ...327
RANDOM walk for 40000 steps (2554 resets) in 3572 ms. (11 steps per ms) remains 172/232 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 9 ms. (40 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
Loading property file /tmp/ReachabilityCardinality612117102095851518.prop.
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 172/172 properties
[2026-05-24 10:18:36] [INFO ] Flow matrix only has 507 transitions (discarded 29 similar events)
[2026-05-24 10:18:36] [INFO ] Invariant cache hit.
[2026-05-24 10:18:36] [INFO ] State equation strengthened by 61 read => feed constraints.
Reachability property qltransition_444 is true.
Reachability property qltransition_443 is true.
Reachability property qltransition_442 is true.
Reachability property qltransition_441 is true.
Reachability property qltransition_440 is true.
Reachability property qltransition_439 is true.
Reachability property qltransition_438 is true.
Reachability property qltransition_437 is true.
Reachability property qltransition_436 is true.
Reachability property qltransition_435 is true.
SDD proceeding with computation,222 properties remain. new max is 2
SDD size :1 after 16
SDD proceeding with computation,222 properties remain. new max is 4
SDD size :16 after 225
SDD proceeding with computation,222 properties remain. new max is 8
SDD size :225 after 3457
SDD proceeding with computation,222 properties remain. new max is 16
SDD size :3457 after 68041
Reachability property qltransition_362 is true.
Reachability property qltransition_361 is true.
Reachability property qltransition_360 is true.
Reachability property qltransition_359 is true.
Reachability property qltransition_358 is true.
Reachability property qltransition_357 is true.
Reachability property qltransition_356 is true.
Reachability property qltransition_355 is true.
Reachability property qltransition_354 is true.
Reachability property qltransition_353 is true.
Reachability property qltransition_346 is true.
Reachability property qltransition_345 is true.
Reachability property qltransition_344 is true.
Reachability property qltransition_343 is true.
Reachability property qltransition_342 is true.
Reachability property qltransition_341 is true.
Reachability property qltransition_340 is true.
Reachability property qltransition_339 is true.
Reachability property qltransition_338 is true.
Reachability property qltransition_337 is true.
At refinement iteration 0 (INCLUDED_ONLY) 0/261 variables, 261/261 constraints. Problems are: Problem set: 0 solved, 172 unsolved
Reachability property qltransition_330 is true.
At refinement iteration 1 (INCLUDED_ONLY) 0/261 variables, 0/261 constraints. Problems are: Problem set: 19 solved, 153 unsolved
At refinement iteration 2 (OVERLAPS) 65/326 variables, 12/273 constraints. Problems are: Problem set: 19 solved, 153 unsolved
Reachability property qltransition_329 is true.
At refinement iteration 3 (INCLUDED_ONLY) 0/326 variables, 65/338 constraints. Problems are: Problem set: 19 solved, 153 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 326/833 variables, and 338 constraints, problems are : Problem set: 20 solved, 152 unsolved in 5015 ms.
Refiners :[Domain max(s): 326/326 constraints, Positive P Invariants (semi-flows): 12/12 constraints, State Equation: 0/326 constraints, ReadFeed: 0/61 constraints, PredecessorRefiner: 172/172 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 20 solved, 152 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/230 variables, 230/230 constraints. Problems are: Problem set: 20 solved, 152 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/230 variables, 0/230 constraints. Problems are: Problem set: 20 solved, 152 unsolved
At refinement iteration 2 (OVERLAPS) 96/326 variables, 12/242 constraints. Problems are: Problem set: 20 solved, 152 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/326 variables, 96/338 constraints. Problems are: Problem set: 20 solved, 152 unsolved
Reachability property qltransition_328 is true.
At refinement iteration 4 (INCLUDED_ONLY) 0/326 variables, 0/338 constraints. Problems are: Problem set: 21 solved, 151 unsolved
At refinement iteration 5 (OVERLAPS) 506/832 variables, 326/664 constraints. Problems are: Problem set: 21 solved, 151 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/832 variables, 60/724 constraints. Problems are: Problem set: 21 solved, 151 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/832 variables, 151/875 constraints. Problems are: Problem set: 21 solved, 151 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 832/833 variables, and 875 constraints, problems are : Problem set: 21 solved, 151 unsolved in 5012 ms.
Refiners :[Domain max(s): 326/326 constraints, Positive P Invariants (semi-flows): 12/12 constraints, State Equation: 326/326 constraints, ReadFeed: 60/61 constraints, PredecessorRefiner: 151/172 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10128ms problems are : Problem set: 21 solved, 151 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 229 out of 326 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 326/326 places, 536/536 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 30 transitions
Reduce isomorphic transitions removed 30 transitions.
Iterating post reduction 0 with 30 rules applied. Total rules applied 30 place count 326 transition count 506
Discarding 14 places :
Symmetric choice reduction at 1 with 14 rule applications. Total rules 44 place count 312 transition count 492
Iterating global reduction 1 with 14 rules applied. Total rules applied 58 place count 312 transition count 492
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 1 with 14 rules applied. Total rules applied 72 place count 312 transition count 478
Free-agglomeration rule applied 36 times.
Iterating global reduction 2 with 36 rules applied. Total rules applied 108 place count 312 transition count 442
Reduce places removed 36 places and 0 transitions.
Iterating post reduction 2 with 36 rules applied. Total rules applied 144 place count 276 transition count 442
Applied a total of 144 rules in 129 ms. Remains 276 /326 variables (removed 50) and now considering 442/536 (removed 94) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 129 ms. Remains : 276/326 places, 442/536 transitions.
Reachability property qltransition_327 is true.
Reachability property qltransition_326 is true.
RANDOM walk for 4000000 steps (280354 resets) in 62796 ms. (63 steps per ms) remains 18/151 properties
BEST_FIRST walk for 400002 steps (392 resets) in 487 ms. (819 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400003 steps (391 resets) in 510 ms. (782 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (395 resets) in 422 ms. (945 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (396 resets) in 409 ms. (975 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (394 resets) in 443 ms. (900 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (391 resets) in 460 ms. (867 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (396 resets) in 483 ms. (826 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400003 steps (394 resets) in 682 ms. (585 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (396 resets) in 346 ms. (1152 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (399 resets) in 397 ms. (1005 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (394 resets) in 390 ms. (1023 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (395 resets) in 311 ms. (1282 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (398 resets) in 254 ms. (1568 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (392 resets) in 246 ms. (1619 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (391 resets) in 234 ms. (1702 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (391 resets) in 264 ms. (1509 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (398 resets) in 353 ms. (1129 steps per ms) remains 18/18 properties
BEST_FIRST walk for 400004 steps (390 resets) in 409 ms. (975 steps per ms) remains 18/18 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-8231682325372127792.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2046329621026721975.kers'
[2026-05-24 10:19:04] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-8231682325372127792.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2046329621026721975.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 442 rows 276 cols 1475 entries
Finished phase 1 with 264 SingleSign rule and 0 generalized
[2026-05-24 10:19:04] [INFO ] Computed 12 invariants in 3 ms
Computed 12 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-2046329621026721975.kers
Total runtime 4 ms.
[2026-05-24 10:19:04] [INFO ] State equation strengthened by 86 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 1 (OVERLAPS) 164/183 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/183 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 3 (OVERLAPS) 93/276 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/276 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 5 (OVERLAPS) 442/718 variables, 276/288 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/718 variables, 86/374 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/718 variables, 0/374 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 8 (OVERLAPS) 0/718 variables, 0/374 constraints. Problems are: Problem set: 0 solved, 18 unsolved
No progress, stopping.
Reachability property qltransition_325 is true.
After SMT solving in domain Real declared 718/718 variables, and 374 constraints, problems are : Problem set: 0 solved, 18 unsolved in 2023 ms.
Refiners :[Positive P Invariants (semi-flows): 12/12 constraints, State Equation: 276/276 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 18/18 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 18 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/19 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 1 (OVERLAPS) 164/183 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/183 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 3 (OVERLAPS) 93/276 variables, 2/12 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/276 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 5 (OVERLAPS) 442/718 variables, 276/288 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/718 variables, 86/374 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/718 variables, 18/392 constraints. Problems are: Problem set: 0 solved, 18 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/718 variables, 0/392 constraints. Problems are: Problem set: 0 solved, 18 unsolved
Reachability property qltransition_324 is true.
At refinement iteration 9 (OVERLAPS) 0/718 variables, 0/392 constraints. Problems are: Problem set: 0 solved, 18 unsolved
No progress, stopping.
After SMT solving in domain Int declared 718/718 variables, and 392 constraints, problems are : Problem set: 0 solved, 18 unsolved in 2169 ms.
Refiners :[Positive P Invariants (semi-flows): 12/12 constraints, State Equation: 276/276 constraints, ReadFeed: 86/86 constraints, PredecessorRefiner: 18/18 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4222ms problems are : Problem set: 0 solved, 18 unsolved
Finished Parikh walk after 5311 steps, including 124 resets, run visited all 6 properties in 77 ms. (steps per millisecond=68 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Parikh walk visited 18 properties in 117 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 233 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PARIKH_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL INITIAL_STATE
Total runtime 99392 ms.

BK_STOP 1779617949049

--------------------
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="FlexibleBarrier-PT-10b"
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 FlexibleBarrier-PT-10b, 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 r136-smll-177955811000227"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-10b.tgz
mv FlexibleBarrier-PT-10b 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 ;