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.r143-smll-177955812400044.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is FlexibleBarrier-PT-08b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r143-smll-177955812400044
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 652K
-rw-r--r-- 1 mcc users 7.5K Mar 7 05:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Mar 7 05:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K Mar 7 05:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 34K Mar 7 05:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 10:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 10:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Mar 7 05:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 7 05:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 52K Mar 7 05:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:11 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 241K 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 positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-00
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-01
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-02
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-03
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-04
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-05
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-06
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-07
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-08
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-09
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-10
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-11
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-12
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-13
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-14
FORMULA_NAME FlexibleBarrier-PT-08b-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779626665959

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FlexibleBarrier-PT-08b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 12:44:28] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-24 12:44:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 12:44:29] [INFO ] Load time of PNML (sax parser for PT used): 268 ms
[2026-05-24 12:44:29] [INFO ] Transformed 920 places.
[2026-05-24 12:44:29] [INFO ] Transformed 1057 transitions.
[2026-05-24 12:44:29] [INFO ] Found NUPN structural information;
[2026-05-24 12:44:29] [INFO ] Parsed PT model containing 920 places and 1057 transitions and 2627 arcs in 516 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 17 ms.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 1057 rows 920 cols
[2026-05-24 12:44:29] [INFO ] Computed 10 invariants in 79 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (158 resets) in 94 ms. (105 steps per ms)
FORMULA FlexibleBarrier-PT-08b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 90008 steps (174 resets) in 194 ms. (461 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 12:44:29] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:30] [INFO ] [Real]Absence check using 10 positive place invariants in 42 ms returned sat
[2026-05-24 12:44:31] [INFO ] [Real]Absence check using state equation in 853 ms returned sat
[2026-05-24 12:44:32] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 188 ms.
[2026-05-24 12:44:32] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:32] [INFO ] [Nat]Absence check using 10 positive place invariants in 36 ms returned sat
[2026-05-24 12:44:33] [INFO ] [Nat]Absence check using state equation in 628 ms returned sat
[2026-05-24 12:44:33] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 166 ms.
Maximisation of solution failed !
Minimization took 2 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:37] [INFO ] [Real]Absence check using 10 positive place invariants in 49 ms returned sat
[2026-05-24 12:44:38] [INFO ] [Real]Absence check using state equation in 703 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:44:39] [INFO ] Deduced a trap composed of 275 places in 903 ms of which 335 ms to minimize.
[2026-05-24 12:44:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:40] [INFO ] [Nat]Absence check using 10 positive place invariants in 52 ms returned sat
[2026-05-24 12:44:40] [INFO ] [Nat]Absence check using state equation in 785 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:44:41] [INFO ] Deduced a trap composed of 83 places in 255 ms of which 49 ms to minimize.
[2026-05-24 12:44:41] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 369 ms
[2026-05-24 12:44:41] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 79 ms.
Maximisation of solution failed !
Minimization took 0 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:45] [INFO ] [Real]Absence check using 10 positive place invariants in 48 ms returned sat
[2026-05-24 12:44:45] [INFO ] [Real]Absence check using state equation in 805 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:44:46] [INFO ] Deduced a trap composed of 161 places in 661 ms of which 232 ms to minimize.
[2026-05-24 12:44:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:47] [INFO ] [Nat]Absence check using 10 positive place invariants in 51 ms returned sat
[2026-05-24 12:44:48] [INFO ] [Nat]Absence check using state equation in 740 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:44:49] [INFO ] Deduced a trap composed of 273 places in 1134 ms of which 427 ms to minimize.
[2026-05-24 12:44:49] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 1241 ms
[2026-05-24 12:44:49] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 122 ms.
[2026-05-24 12:44:51] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 2
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1140)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:878)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2254)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:927)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:52] [INFO ] [Real]Absence check using 10 positive place invariants in 55 ms returned sat
[2026-05-24 12:44:53] [INFO ] [Real]Absence check using state equation in 772 ms returned sat
[2026-05-24 12:44:53] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 135 ms.
[2026-05-24 12:44:53] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:54] [INFO ] [Nat]Absence check using 10 positive place invariants in 58 ms returned sat
[2026-05-24 12:44:54] [INFO ] [Nat]Absence check using state equation in 730 ms returned sat
[2026-05-24 12:44:54] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 129 ms.
[2026-05-24 12:44:58] [INFO ] Added : 195 causal constraints over 39 iterations in 3794 ms. Result :unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:44:59] [INFO ] [Real]Absence check using 10 positive place invariants in 48 ms returned sat
[2026-05-24 12:44:59] [INFO ] [Real]Absence check using state equation in 723 ms returned sat
[2026-05-24 12:44:59] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 119 ms.
[2026-05-24 12:45:00] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:00] [INFO ] [Nat]Absence check using 10 positive place invariants in 31 ms returned sat
[2026-05-24 12:45:01] [INFO ] [Nat]Absence check using state equation in 471 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:45:01] [INFO ] Deduced a trap composed of 138 places in 828 ms of which 192 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:45:02] [INFO ] Deduced a trap composed of 161 places in 793 ms of which 210 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:45:03] [INFO ] Deduced a trap composed of 273 places in 772 ms of which 247 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:45:04] [INFO ] Deduced a trap composed of 275 places in 746 ms of which 235 ms to minimize.
[2026-05-24 12:45:04] [INFO ] Trap strengthening (SAT) tested/added 5/4 trap constraints in 3373 ms
[2026-05-24 12:45:04] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 79 ms.
[2026-05-24 12:45:05] [INFO ] Added : 60 causal constraints over 12 iterations in 841 ms. Result :unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:05] [INFO ] [Real]Absence check using 10 positive place invariants in 36 ms returned sat
[2026-05-24 12:45:06] [INFO ] [Real]Absence check using state equation in 475 ms returned sat
[2026-05-24 12:45:06] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 73 ms.
[2026-05-24 12:45:06] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:06] [INFO ] [Nat]Absence check using 10 positive place invariants in 29 ms returned sat
[2026-05-24 12:45:07] [INFO ] [Nat]Absence check using state equation in 466 ms returned sat
[2026-05-24 12:45:07] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 69 ms.
Maximisation of solution failed !
Minimization took 0 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:11] [INFO ] [Real]Absence check using 10 positive place invariants in 32 ms returned sat
[2026-05-24 12:45:12] [INFO ] [Real]Absence check using state equation in 707 ms returned sat
[2026-05-24 12:45:12] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 102 ms.
[2026-05-24 12:45:12] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:13] [INFO ] [Nat]Absence check using 10 positive place invariants in 49 ms returned sat
[2026-05-24 12:45:14] [INFO ] [Nat]Absence check using state equation in 665 ms returned sat
[2026-05-24 12:45:14] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 69 ms.
[2026-05-24 12:45:17] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 6
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1140)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:878)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2254)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:927)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:18] [INFO ] [Real]Absence check using 10 positive place invariants in 46 ms returned sat
[2026-05-24 12:45:19] [INFO ] [Real]Absence check using state equation in 752 ms returned sat
[2026-05-24 12:45:19] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 72 ms.
[2026-05-24 12:45:19] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:19] [INFO ] [Nat]Absence check using 10 positive place invariants in 50 ms returned sat
[2026-05-24 12:45:20] [INFO ] [Nat]Absence check using state equation in 765 ms returned sat
[2026-05-24 12:45:20] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 70 ms.
Maximisation of solution failed !
Minimization took 0 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:24] [INFO ] [Real]Absence check using 10 positive place invariants in 47 ms returned sat
[2026-05-24 12:45:25] [INFO ] [Real]Absence check using state equation in 759 ms returned sat
[2026-05-24 12:45:25] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 87 ms.
[2026-05-24 12:45:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:45:26] [INFO ] [Nat]Absence check using 10 positive place invariants in 50 ms returned sat
[2026-05-24 12:45:27] [INFO ] [Nat]Absence check using state equation in 751 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:45:27] [INFO ] Deduced a trap composed of 273 places in 593 ms of which 237 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:45:28] [INFO ] Deduced a trap composed of 275 places in 868 ms of which 252 ms to minimize.
[2026-05-24 12:45:28] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1622 ms
[2026-05-24 12:45:28] [INFO ] Computed and/alt/rep : 968/1629/968 causal constraints (skipped 88 transitions) in 125 ms.
[2026-05-24 12:45:30] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 8
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1140)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:878)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2254)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:927)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1]
FORMULA FlexibleBarrier-PT-08b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 1, 0, 1, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1]
Support contains 8 out of 920 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 920/920 places, 1057/1057 transitions.
Graph (trivial) has 880 edges and 920 vertex of which 50 / 920 are part of one of the 8 SCC in 6 ms
Free SCC test removed 42 places
Drop transitions (Empty/Sink Transition effects.) removed 51 transitions
Reduce isomorphic transitions removed 51 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 235 transitions
Trivial Post-agglo rules discarded 235 transitions
Performed 235 trivial Post agglomeration. Transition count delta: 235
Iterating post reduction 0 with 235 rules applied. Total rules applied 236 place count 878 transition count 771
Reduce places removed 235 places and 0 transitions.
Iterating post reduction 1 with 235 rules applied. Total rules applied 471 place count 643 transition count 771
Performed 54 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 54 Pre rules applied. Total rules applied 471 place count 643 transition count 717
Deduced a syphon composed of 54 places in 2 ms
Reduce places removed 54 places and 0 transitions.
Iterating global reduction 2 with 108 rules applied. Total rules applied 579 place count 589 transition count 717
Discarding 310 places :
Symmetric choice reduction at 2 with 310 rule applications. Total rules 889 place count 279 transition count 407
Iterating global reduction 2 with 310 rules applied. Total rules applied 1199 place count 279 transition count 407
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 7 Pre rules applied. Total rules applied 1199 place count 279 transition count 400
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 1213 place count 272 transition count 400
Discarding 47 places :
Symmetric choice reduction at 2 with 47 rule applications. Total rules 1260 place count 225 transition count 353
Iterating global reduction 2 with 47 rules applied. Total rules applied 1307 place count 225 transition count 353
Ensure Unique test removed 45 transitions
Reduce isomorphic transitions removed 45 transitions.
Iterating post reduction 2 with 45 rules applied. Total rules applied 1352 place count 225 transition count 308
Performed 42 Post agglomeration using F-continuation condition.Transition count delta: 42
Deduced a syphon composed of 42 places in 0 ms
Reduce places removed 42 places and 0 transitions.
Iterating global reduction 3 with 84 rules applied. Total rules applied 1436 place count 183 transition count 266
Drop transitions (Empty/Sink Transition effects.) removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 3 with 15 rules applied. Total rules applied 1451 place count 183 transition count 251
Discarding 7 places :
Symmetric choice reduction at 4 with 7 rule applications. Total rules 1458 place count 176 transition count 244
Iterating global reduction 4 with 7 rules applied. Total rules applied 1465 place count 176 transition count 244
Free-agglomeration rule applied 118 times.
Iterating global reduction 4 with 118 rules applied. Total rules applied 1583 place count 176 transition count 126
Reduce places removed 118 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 46 transitions
Reduce isomorphic transitions removed 46 transitions.
Graph (complete) has 153 edges and 58 vertex of which 53 are kept as prefixes of interest. Removing 5 places using SCC suffix rule.1 ms
Discarding 5 places :
Also discarding 0 output transitions
Iterating post reduction 4 with 165 rules applied. Total rules applied 1748 place count 53 transition count 80
Drop transitions (Empty/Sink Transition effects.) removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 5 with 7 rules applied. Total rules applied 1755 place count 53 transition count 73
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 6 with 1 rules applied. Total rules applied 1756 place count 53 transition count 73
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 6 with 1 rules applied. Total rules applied 1757 place count 52 transition count 72
Reduce places removed 1 places and 0 transitions.
Graph (trivial) has 37 edges and 51 vertex of which 14 / 51 are part of one of the 7 SCC in 0 ms
Free SCC test removed 7 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 6 with 3 rules applied. Total rules applied 1760 place count 44 transition count 71
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 7 with 15 rules applied. Total rules applied 1775 place count 43 transition count 57
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 7 Pre rules applied. Total rules applied 1775 place count 43 transition count 50
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 8 with 14 rules applied. Total rules applied 1789 place count 36 transition count 50
Drop transitions (Empty/Sink Transition effects.) removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 8 with 7 rules applied. Total rules applied 1796 place count 36 transition count 43
Performed 7 Post agglomeration using F-continuation condition.Transition count delta: 7
Deduced a syphon composed of 7 places in 0 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 9 with 14 rules applied. Total rules applied 1810 place count 29 transition count 36
Free-agglomeration rule applied 8 times.
Iterating global reduction 9 with 8 rules applied. Total rules applied 1818 place count 29 transition count 28
Reduce places removed 11 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 9 with 18 rules applied. Total rules applied 1836 place count 18 transition count 21
Free-agglomeration rule applied 1 times.
Iterating global reduction 10 with 1 rules applied. Total rules applied 1837 place count 18 transition count 20
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 10 with 1 rules applied. Total rules applied 1838 place count 17 transition count 20
Applied a total of 1838 rules in 275 ms. Remains 17 /920 variables (removed 903) and now considering 20/1057 (removed 1037) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 296 ms. Remains : 17/920 places, 20/1057 transitions.
// Phase 1: matrix 20 rows 17 cols
[2026-05-24 12:45:31] [INFO ] Computed 5 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 1, 0, 1, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1]
FORMULA FlexibleBarrier-PT-08b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-08b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (2 resets) in 1075 ms. (929 steps per ms)
FORMULA FlexibleBarrier-PT-08b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-08b-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000000 steps (2 resets) in 435 ms. (2293 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2026-05-24 12:45:33] [INFO ] Flatten gal took : 31 ms
[2026-05-24 12:45:33] [INFO ] Flatten gal took : 4 ms
[2026-05-24 12:45:33] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14332621108550922306.gal : 6 ms
[2026-05-24 12:45:33] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9056890266074881811.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality14332621108550922306.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9056890266074881811.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 64997 ms.

BK_STOP 1779626733754

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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 UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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-08b"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-5973"
echo " Executing tool gold2025"
echo " Input is FlexibleBarrier-PT-08b, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r143-smll-177955812400044"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-08b.tgz
mv FlexibleBarrier-PT-08b execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;