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-177955811000237.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 FlexibleBarrier-PT-12b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r136-smll-177955811000237
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1008K
-rw-r--r-- 1 mcc users 7.3K Mar 7 05:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 7 05:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 7 05:52 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 7 05:52 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 10:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:13 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 10:13 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Mar 7 05:52 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 148K Mar 7 05:52 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.9K Mar 7 05:52 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 65K Mar 7 05:52 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:13 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:13 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 536K 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 1779617985878

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-12b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-24 10:19:48] [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 10:19:48] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 10:19:49] [INFO ] Load time of PNML (sax parser for PT used): 414 ms
[2026-05-24 10:19:49] [INFO ] Transformed 1988 places.
[2026-05-24 10:19:49] [INFO ] Transformed 2289 transitions.
[2026-05-24 10:19:49] [INFO ] Found NUPN structural information;
[2026-05-24 10:19:49] [INFO ] Parsed PT model containing 1988 places and 2289 transitions and 5727 arcs in 700 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 1988/1988 places, 2289/2289 transitions.
Graph (trivial) has 1950 edges and 1988 vertex of which 74 / 1988 are part of one of the 12 SCC in 36 ms
Free SCC test removed 62 places
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 501 transitions
Trivial Post-agglo rules discarded 501 transitions
Performed 501 trivial Post agglomeration. Transition count delta: 501
Iterating post reduction 0 with 501 rules applied. Total rules applied 502 place count 1926 transition count 1725
Reduce places removed 501 places and 0 transitions.
Iterating post reduction 1 with 501 rules applied. Total rules applied 1003 place count 1425 transition count 1725
Performed 132 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 132 Pre rules applied. Total rules applied 1003 place count 1425 transition count 1593
Deduced a syphon composed of 132 places in 21 ms
Reduce places removed 132 places and 0 transitions.
Iterating global reduction 2 with 264 rules applied. Total rules applied 1267 place count 1293 transition count 1593
Performed 831 Post agglomeration using F-continuation condition.Transition count delta: 831
Deduced a syphon composed of 831 places in 1 ms
Reduce places removed 831 places and 0 transitions.
Iterating global reduction 2 with 1662 rules applied. Total rules applied 2929 place count 462 transition count 762
Applied a total of 2929 rules in 690 ms. Remains 462 /1988 variables (removed 1526) and now considering 762/2289 (removed 1527) transitions.
[2026-05-24 10:19:49] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-877716245990584695.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5116626108588694198.kers'
[2026-05-24 10:19:50] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-877716245990584695.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5116626108588694198.kers]
Normalized transition count is 726 out of 727 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 726 rows 462 cols 2481 entries
Finished phase 1 with 448 SingleSign rule and 0 generalized
[2026-05-24 10:19:50] [INFO ] Computed 14 invariants in 6 ms
Computed 14 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-5116626108588694198.kers
Total runtime 9 ms.
[2026-05-24 10:19:52] [INFO ] Implicit Places using invariants in 2300 ms returned []
[2026-05-24 10:19:52] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
[2026-05-24 10:19:52] [INFO ] Invariant cache hit.
[2026-05-24 10:19:53] [INFO ] State equation strengthened by 73 read => feed constraints.
[2026-05-24 10:19:55] [INFO ] Implicit Places using invariants and state equation in 3100 ms returned []
Implicit Place search using SMT with State Equation took 5469 ms to find 0 implicit places.
Running 761 sub problems to find dead transitions.
[2026-05-24 10:19:55] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
[2026-05-24 10:19:55] [INFO ] Invariant cache hit.
[2026-05-24 10:19:55] [INFO ] State equation strengthened by 73 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/461 variables, 461/461 constraints. Problems are: Problem set: 0 solved, 761 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/461 variables, 0/461 constraints. Problems are: Problem set: 0 solved, 761 unsolved
At refinement iteration 2 (OVERLAPS) 1/462 variables, 14/475 constraints. Problems are: Problem set: 0 solved, 761 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 3 (INCLUDED_ONLY) 0/462 variables, 1/476 constraints. Problems are: Problem set: 0 solved, 761 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 462/1189 variables, and 476 constraints, problems are : Problem set: 0 solved, 761 unsolved in 30072 ms.
Refiners :[Domain max(s): 462/462 constraints, Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 0/462 constraints, ReadFeed: 0/73 constraints, PredecessorRefiner: 761/761 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 761 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/461 variables, 461/461 constraints. Problems are: Problem set: 0 solved, 761 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/461 variables, 0/461 constraints. Problems are: Problem set: 0 solved, 761 unsolved
At refinement iteration 2 (OVERLAPS) 1/462 variables, 14/475 constraints. Problems are: Problem set: 0 solved, 761 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/462 variables, 1/476 constraints. Problems are: Problem set: 0 solved, 761 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 462/1189 variables, and 476 constraints, problems are : Problem set: 0 solved, 761 unsolved in 30048 ms.
Refiners :[Domain max(s): 462/462 constraints, Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 0/462 constraints, ReadFeed: 0/73 constraints, PredecessorRefiner: 0/761 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 61543ms problems are : Problem set: 0 solved, 761 unsolved
Search for dead transitions found 0 dead transitions in 61590ms
Starting structural reductions in LIVENESS mode, iteration 1 : 462/1988 places, 762/2289 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 67874 ms. Remains : 462/1988 places, 762/2289 transitions.
Discarding 435 transitions out of 762. Remains 327
Initial state reduction rules removed 1 formulas.
[2026-05-24 10:20:58] [INFO ] Flatten gal took : 376 ms
[2026-05-24 10:20:58] [INFO ] Flatten gal took : 271 ms
[2026-05-24 10:20:58] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4654069508205141252.gal : 105 ms
[2026-05-24 10:20:58] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2668763124036952557.prop : 15 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/ReachabilityCardinality4654069508205141252.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2668763124036952557.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/ReachabilityCardinality2668763124036952557.prop.
Reachability property qltransition_652 is true.
Reachability property qltransition_651 is true.
Reachability property qltransition_650 is true.
Reachability property qltransition_649 is true.
Reachability property qltransition_648 is true.
Reachability property qltransition_647 is true.
Reachability property qltransition_646 is true.
Reachability property qltransition_645 is true.
Reachability property qltransition_644 is true.
Reachability property qltransition_643 is true.
Reachability property qltransition_642 is true.
Reachability property qltransition_641 is true.
SDD proceeding with computation,314 properties remain. new max is 2
SDD size :1 after 18
SDD proceeding with computation,314 properties remain. new max is 4
SDD size :18 after 290
RANDOM walk for 40000 steps (2274 resets) in 8801 ms. (4 steps per ms) remains 274/326 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 8 ms. (44 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
SDD proceeding with computation,314 properties remain. new max is 8
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
SDD size :290 after 5401
BEST_FIRST walk for 404 steps (0 resets) in 8 ms. (44 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 274/274 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 274/274 properties
[2026-05-24 10:20:59] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
[2026-05-24 10:20:59] [INFO ] Invariant cache hit.
[2026-05-24 10:20:59] [INFO ] State equation strengthened by 73 read => feed constraints.
SDD proceeding with computation,314 properties remain. new max is 16
SDD size :5401 after 118801
SDD proceeding with computation,314 properties remain. new max is 32
SDD size :118801 after 3.83328e+06
Reachability property qltransition_530 is true.
Reachability property qltransition_529 is true.
Reachability property qltransition_528 is true.
Reachability property qltransition_527 is true.
Reachability property qltransition_526 is true.
Reachability property qltransition_525 is true.
Reachability property qltransition_524 is true.
Reachability property qltransition_523 is true.
Reachability property qltransition_522 is true.
Reachability property qltransition_521 is true.
Reachability property qltransition_520 is true.
Reachability property qltransition_519 is true.
Reachability property qltransition_510 is true.
Reachability property qltransition_509 is true.
Reachability property qltransition_508 is true.
Reachability property qltransition_507 is true.
At refinement iteration 0 (INCLUDED_ONLY) 0/408 variables, 408/408 constraints. Problems are: Problem set: 0 solved, 274 unsolved
Reachability property qltransition_506 is true.
Reachability property qltransition_505 is true.
Reachability property qltransition_504 is true.
Reachability property qltransition_503 is true.
Reachability property qltransition_502 is true.
Reachability property qltransition_501 is true.
Reachability property qltransition_500 is true.
Reachability property qltransition_499 is true.
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 408/1189 variables, and 408 constraints, problems are : Problem set: 24 solved, 250 unsolved in 5020 ms.
Refiners :[Domain max(s): 408/462 constraints, Positive P Invariants (semi-flows): 0/14 constraints, State Equation: 0/462 constraints, ReadFeed: 0/73 constraints, PredecessorRefiner: 274/274 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 24 solved, 250 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/372 variables, 372/372 constraints. Problems are: Problem set: 24 solved, 250 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/372 variables, 0/372 constraints. Problems are: Problem set: 24 solved, 250 unsolved
At refinement iteration 2 (OVERLAPS) 90/462 variables, 14/386 constraints. Problems are: Problem set: 24 solved, 250 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/462 variables, 90/476 constraints. Problems are: Problem set: 24 solved, 250 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 462/1189 variables, and 476 constraints, problems are : Problem set: 24 solved, 250 unsolved in 5019 ms.
Refiners :[Domain max(s): 462/462 constraints, Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 0/462 constraints, ReadFeed: 0/73 constraints, PredecessorRefiner: 0/274 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10257ms problems are : Problem set: 24 solved, 250 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 372 out of 462 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 462/462 places, 762/762 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 36 transitions
Reduce isomorphic transitions removed 36 transitions.
Iterating post reduction 0 with 36 rules applied. Total rules applied 36 place count 462 transition count 726
Discarding 12 places :
Symmetric choice reduction at 1 with 12 rule applications. Total rules 48 place count 450 transition count 714
Iterating global reduction 1 with 12 rules applied. Total rules applied 60 place count 450 transition count 714
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 1 with 12 rules applied. Total rules applied 72 place count 450 transition count 702
Free-agglomeration rule applied 28 times.
Iterating global reduction 2 with 28 rules applied. Total rules applied 100 place count 450 transition count 674
Reduce places removed 28 places and 0 transitions.
Iterating post reduction 2 with 28 rules applied. Total rules applied 128 place count 422 transition count 674
Applied a total of 128 rules in 274 ms. Remains 422 /462 variables (removed 40) and now considering 674/762 (removed 88) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 279 ms. Remains : 422/462 places, 674/762 transitions.
Reachability property qltransition_490 is true.
Reachability property qltransition_489 is true.
RANDOM walk for 4000000 steps (247943 resets) in 116088 ms. (34 steps per ms) remains 33/250 properties
BEST_FIRST walk for 400004 steps (8 resets) in 667 ms. (598 steps per ms) remains 31/33 properties
BEST_FIRST walk for 400004 steps (124 resets) in 505 ms. (790 steps per ms) remains 31/31 properties
BEST_FIRST walk for 400004 steps (124 resets) in 305 ms. (1307 steps per ms) remains 30/31 properties
BEST_FIRST walk for 400004 steps (124 resets) in 402 ms. (992 steps per ms) remains 29/30 properties
BEST_FIRST walk for 400004 steps (124 resets) in 353 ms. (1129 steps per ms) remains 27/29 properties
BEST_FIRST walk for 400004 steps (123 resets) in 289 ms. (1379 steps per ms) remains 25/27 properties
BEST_FIRST walk for 400004 steps (124 resets) in 245 ms. (1626 steps per ms) remains 23/25 properties
BEST_FIRST walk for 400004 steps (204 resets) in 267 ms. (1492 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (204 resets) in 286 ms. (1393 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (202 resets) in 269 ms. (1481 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (205 resets) in 283 ms. (1408 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (202 resets) in 273 ms. (1459 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (200 resets) in 295 ms. (1351 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (204 resets) in 273 ms. (1459 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (203 resets) in 271 ms. (1470 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (200 resets) in 277 ms. (1438 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (204 resets) in 241 ms. (1652 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (205 resets) in 385 ms. (1036 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (203 resets) in 406 ms. (982 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (204 resets) in 421 ms. (947 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (203 resets) in 399 ms. (1000 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (201 resets) in 346 ms. (1152 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (203 resets) in 298 ms. (1337 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (202 resets) in 313 ms. (1273 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (202 resets) in 314 ms. (1269 steps per ms) remains 23/23 properties
BEST_FIRST walk for 400004 steps (202 resets) in 288 ms. (1384 steps per ms) remains 23/23 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2242243395578039054.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-12775718053587587720.kers'
[2026-05-24 10:21:42] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2242243395578039054.kers, --Pflows, --basisKERS=/tmp/petrispot-output-12775718053587587720.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 674 rows 422 cols 2297 entries
Finished phase 1 with 408 SingleSign rule and 0 generalized
[2026-05-24 10:21:42] [INFO ] Computed 14 invariants in 4 ms
Computed 14 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-12775718053587587720.kers
Total runtime 6 ms.
[2026-05-24 10:21:42] [INFO ] State equation strengthened by 88 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/25 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 1 (OVERLAPS) 367/392 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/392 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 3 (OVERLAPS) 30/422 variables, 2/14 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/422 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 5 (OVERLAPS) 674/1096 variables, 422/436 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1096 variables, 88/524 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1096 variables, 0/524 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 8 (OVERLAPS) 0/1096 variables, 0/524 constraints. Problems are: Problem set: 0 solved, 23 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1096/1096 variables, and 524 constraints, problems are : Problem set: 0 solved, 23 unsolved in 3278 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 422/422 constraints, ReadFeed: 88/88 constraints, PredecessorRefiner: 23/23 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 23 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/25 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 1 (OVERLAPS) 367/392 variables, 12/12 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/392 variables, 0/12 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 3 (OVERLAPS) 30/422 variables, 2/14 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/422 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 5 (OVERLAPS) 674/1096 variables, 422/436 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1096 variables, 88/524 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1096 variables, 23/547 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1096 variables, 0/547 constraints. Problems are: Problem set: 0 solved, 23 unsolved
At refinement iteration 9 (OVERLAPS) 0/1096 variables, 0/547 constraints. Problems are: Problem set: 0 solved, 23 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1096/1096 variables, and 547 constraints, problems are : Problem set: 0 solved, 23 unsolved in 6598 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 422/422 constraints, ReadFeed: 88/88 constraints, PredecessorRefiner: 23/23 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 9916ms problems are : Problem set: 0 solved, 23 unsolved
Fused 23 Parikh solutions to 22 different solutions.
Finished Parikh walk after 14519 steps, including 538 resets, run visited all 1 properties in 83 ms. (steps per millisecond=174 )
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 23 properties in 1507 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 327 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PARIKH_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 125760 ms.

BK_STOP 1779618114198

--------------------
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-12b"
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-12b, 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-177955811000237"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-12b.tgz
mv FlexibleBarrier-PT-12b 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 ;