Execution Chart

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Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r091-smll-174860108200297.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5832
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 r091-smll-174860108200297
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1000K
-rw-r--r-- 1 mcc users 7.3K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 78K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.8K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 160K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.9K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 536K May 29 14:32 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1748654552414

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 202505121319
[2025-05-31 01:22:34] [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]
[2025-05-31 01:22:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-05-31 01:22:35] [INFO ] Load time of PNML (sax parser for PT used): 414 ms
[2025-05-31 01:22:35] [INFO ] Transformed 1988 places.
[2025-05-31 01:22:35] [INFO ] Transformed 2289 transitions.
[2025-05-31 01:22:35] [INFO ] Found NUPN structural information;
[2025-05-31 01:22:35] [INFO ] Parsed PT model containing 1988 places and 2289 transitions and 5727 arcs in 648 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 15 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 15 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 478 ms. Remains 462 /1988 variables (removed 1526) and now considering 762/2289 (removed 1527) transitions.
[2025-05-31 01:22:36] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
// Phase 1: matrix 727 rows 462 cols
[2025-05-31 01:22:36] [INFO ] Computed 14 invariants in 38 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-31 01:22:37] [INFO ] Implicit Places using invariants in 1789 ms returned []
[2025-05-31 01:22:37] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
[2025-05-31 01:22:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2025-05-31 01:22:38] [INFO ] State equation strengthened by 73 read => feed constraints.
[2025-05-31 01:22:41] [INFO ] Implicit Places using invariants and state equation in 3190 ms returned []
Implicit Place search using SMT with State Equation took 5039 ms to find 0 implicit places.
Running 761 sub problems to find dead transitions.
[2025-05-31 01:22:41] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
[2025-05-31 01:22:41] [INFO ] Invariant cache hit.
[2025-05-31 01:22:41] [INFO ] State equation strengthened by 73 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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 Real declared 462/1189 variables, and 476 constraints, problems are : Problem set: 0 solved, 761 unsolved in 30084 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
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
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
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
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 30031 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 61786ms problems are : Problem set: 0 solved, 761 unsolved
Search for dead transitions found 0 dead transitions in 61828ms
Starting structural reductions in LIVENESS mode, iteration 1 : 462/1988 places, 762/2289 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 67399 ms. Remains : 462/1988 places, 762/2289 transitions.
Discarding 435 transitions out of 762. Remains 327
Initial state reduction rules removed 1 formulas.
[2025-05-31 01:23:44] [INFO ] Flatten gal took : 376 ms
[2025-05-31 01:23:44] [INFO ] Flatten gal took : 210 ms
[2025-05-31 01:23:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6339447653966194475.gal : 91 ms
[2025-05-31 01:23:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8101112922146476457.prop : 11 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6339447653966194475.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8101112922146476457.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality8101112922146476457.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 (2264 resets) in 7983 ms. (5 steps per ms) remains 269/326 properties
BEST_FIRST walk for 404 steps (0 resets) in 9 ms. (40 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 25 ms. (15 steps per ms) remains 269/269 properties
SDD proceeding with computation,314 properties remain. new max is 8
SDD size :290 after 5441
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 7 ms. (50 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 6 ms. (57 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 5 ms. (67 steps per ms) remains 269/269 properties
BEST_FIRST walk for 404 steps (0 resets) in 4 ms. (80 steps per ms) remains 269/269 properties
[2025-05-31 01:23:45] [INFO ] Flow matrix only has 727 transitions (discarded 35 similar events)
[2025-05-31 01:23:45] [INFO ] Invariant cache hit.
[2025-05-31 01:23:45] [INFO ] State equation strengthened by 73 read => feed constraints.
SDD proceeding with computation,314 properties remain. new max is 16
SDD size :5441 after 125401
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SDD proceeding with computation,314 properties remain. new max is 32
SDD size :125401 after 4.98326e+07
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) 0/402 variables, 402/402 constraints. Problems are: Problem set: 0 solved, 269 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 "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 402/1189 variables, and 402 constraints, problems are : Problem set: 23 solved, 246 unsolved in 5017 ms.
Refiners :[Domain max(s): 402/462 constraints, Positive P Invariants (semi-flows): 0/14 constraints, State Equation: 0/462 constraints, ReadFeed: 0/73 constraints, PredecessorRefiner: 269/269 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 23 solved, 246 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/367 variables, 367/367 constraints. Problems are: Problem set: 23 solved, 246 unsolved
Reachability property qltransition_490 is true.
Error getting values : (error "ParserException while parsing response: ((s1 1)
(s2 1)
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(s23 1)
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(s27 1)
(s29 1)
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(s44 1)
(s45 1)
(s46 1)
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(s50 1)
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(s52 1)
(s55 1)
(s57 1)
(s58 1)
(s59 1)
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(s61 1)
(s62 1)
(s63 1)
(s64 1)
(s66 1)
(s67 1)
(s68 1)
(s69 1)
(s70 1)
(s71 1)
(s72 1)
(s73 1)
(s74 1)
(s75 1)
(s76 1)
(s78 1)
(s79 1)
(s80 1)
(s83 1)
(s85 1)
(s86 1)
(s87 1)
(s88 1)
(s89 1)
(s90 1)
(s91 1)
(s92 1)
(s93 1)
(s94 1)
(s95 1)
(s96 1)
(s97 1)
(s98 1)
(s99 1)
(s100 1)
(s101 1)
(s102 1)
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(s104 1)
(s106 1)
(s107 1)
(s108 1)
(s111 1)
(s113 1)
(s114 1)
(s115 1)
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(s117 1)
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(s139 1)
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(s160 1)
(s162 1)
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(s164 1)
(s167 1)
(s181 1)
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(s183 1)
(s184 1)
(s185 1)
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(s198 1)
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(s200 1)
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(s202 1)
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(s206 1)
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(s228 1)
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(s240 1)
(s241 1)
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(s248 1)
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(s253 1)
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(s256 1)
(s257 1)
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(s260 1)
(s261 1)
(s263 1)
(s264 1)
(s265 1)
(s266 1)
(s267 1)
(s268 1)
(s269 1)
(s270 1)
(s271 1)
(s272 1)
(s274 1)
(s275 1)
(s276 1)
(s279 1)
(s281 1)
(s282 1)
(s284 1)
(s285 1)
(s286 1)
(s287 1)
(s288 1)
(s289 1)
(s290 1)
(s291 1)
(s292 1)
(s293 1)
(s294 1)
(s295 1)
(s296 1)
(s297 1)
(s298 1)
(s299 1)
(s300 1)
(s302 1)
(s303 1)
(s304 1)
(s307 1)
(s309 1)
(s310 1)
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(s322 1)timeout

(s323 org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 367/1189 variables, and 367 constraints, problems are : Problem set: 24 solved, 245 unsolved in 5018 ms.
Refiners :[Domain max(s): 367/462 constraints, Positive P Invariants (semi-flows): 0/14 constraints, State Equation: 0/462 constraints, ReadFeed: 0/73 constraints, PredecessorRefiner: 0/269 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10192ms problems are : Problem set: 24 solved, 245 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 366 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 13 places :
Symmetric choice reduction at 1 with 13 rule applications. Total rules 49 place count 449 transition count 713
Iterating global reduction 1 with 13 rules applied. Total rules applied 62 place count 449 transition count 713
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Iterating post reduction 1 with 13 rules applied. Total rules applied 75 place count 449 transition count 700
Free-agglomeration rule applied 32 times.
Iterating global reduction 2 with 32 rules applied. Total rules applied 107 place count 449 transition count 668
Reduce places removed 32 places and 0 transitions.
Iterating post reduction 2 with 32 rules applied. Total rules applied 139 place count 417 transition count 668
Applied a total of 139 rules in 271 ms. Remains 417 /462 variables (removed 45) and now considering 668/762 (removed 94) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 271 ms. Remains : 417/462 places, 668/762 transitions.
Reachability property qltransition_489 is true.
RANDOM walk for 4000000 steps (247883 resets) in 112962 ms. (35 steps per ms) remains 30/245 properties
BEST_FIRST walk for 400004 steps (125 resets) in 693 ms. (576 steps per ms) remains 29/30 properties
BEST_FIRST walk for 400004 steps (125 resets) in 687 ms. (581 steps per ms) remains 27/29 properties
BEST_FIRST walk for 400004 steps (125 resets) in 573 ms. (696 steps per ms) remains 27/27 properties
BEST_FIRST walk for 400004 steps (124 resets) in 459 ms. (869 steps per ms) remains 25/27 properties
BEST_FIRST walk for 400004 steps (207 resets) in 459 ms. (869 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 349 ms. (1142 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 325 ms. (1227 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 353 ms. (1129 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (204 resets) in 345 ms. (1156 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (207 resets) in 311 ms. (1282 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (206 resets) in 280 ms. (1423 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (209 resets) in 263 ms. (1515 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (210 resets) in 265 ms. (1503 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (205 resets) in 237 ms. (1680 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (206 resets) in 268 ms. (1487 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (209 resets) in 351 ms. (1136 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 374 ms. (1066 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 459 ms. (869 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 410 ms. (973 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (209 resets) in 373 ms. (1069 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (205 resets) in 315 ms. (1265 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (209 resets) in 285 ms. (1398 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (207 resets) in 325 ms. (1227 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (208 resets) in 280 ms. (1423 steps per ms) remains 25/25 properties
BEST_FIRST walk for 400004 steps (209 resets) in 351 ms. (1136 steps per ms) remains 25/25 properties
// Phase 1: matrix 668 rows 417 cols
[2025-05-31 01:24:28] [INFO ] Computed 14 invariants in 16 ms
[2025-05-31 01:24:28] [INFO ] State equation strengthened by 92 read => feed constraints.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/27 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 1 (OVERLAPS) 363/390 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/390 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 3 (OVERLAPS) 27/417 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/417 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 5 (OVERLAPS) 668/1085 variables, 417/431 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1085 variables, 92/523 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1085 variables, 0/523 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 8 (OVERLAPS) 0/1085 variables, 0/523 constraints. Problems are: Problem set: 0 solved, 25 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1085/1085 variables, and 523 constraints, problems are : Problem set: 0 solved, 25 unsolved in 4351 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 417/417 constraints, ReadFeed: 92/92 constraints, PredecessorRefiner: 25/25 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 25 unsolved
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/27 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 1 (OVERLAPS) 363/390 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/390 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 3 (OVERLAPS) 27/417 variables, 1/14 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/417 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 5 (OVERLAPS) 668/1085 variables, 417/431 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1085 variables, 92/523 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/1085 variables, 25/548 constraints. Problems are: Problem set: 0 solved, 25 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/1085 variables, 0/548 constraints. Problems are: Problem set: 0 solved, 25 unsolved
Reachability property qltransition_488 is true.
At refinement iteration 9 (OVERLAPS) 0/1085 variables, 0/548 constraints. Problems are: Problem set: 0 solved, 25 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1085/1085 variables, and 548 constraints, problems are : Problem set: 0 solved, 25 unsolved in 24650 ms.
Refiners :[Positive P Invariants (semi-flows): 14/14 constraints, State Equation: 417/417 constraints, ReadFeed: 92/92 constraints, PredecessorRefiner: 25/25 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 29049ms problems are : Problem set: 0 solved, 25 unsolved
Fused 25 Parikh solutions to 24 different solutions.
Finished Parikh walk after 1859 steps, including 58 resets, run visited all 2 properties in 34 ms. (steps per millisecond=54 )
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 3 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 2 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 25 properties in 1967 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 144336 ms.

BK_STOP 1748654699285

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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 2-5832"
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 r091-smll-174860108200297"
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 ;