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-177955812400048.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-12b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r143-smll-177955812400048
=====================================================================

--------------------
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 positive values
NUM_VECTOR

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

=== Now, execution of the tool begins

BK_START 1779626888801

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FlexibleBarrier-PT-12b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-24 12:48:11] [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 12:48:11] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 12:48:11] [INFO ] Load time of PNML (sax parser for PT used): 301 ms
[2026-05-24 12:48:11] [INFO ] Transformed 1988 places.
[2026-05-24 12:48:11] [INFO ] Transformed 2289 transitions.
[2026-05-24 12:48:11] [INFO ] Found NUPN structural information;
[2026-05-24 12:48:11] [INFO ] Parsed PT model containing 1988 places and 2289 transitions and 5727 arcs in 522 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 13 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 2289 rows 1988 cols
[2026-05-24 12:48:12] [INFO ] Computed 14 invariants in 107 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 (116 resets) in 83 ms. (119 steps per ms)
FORMULA FlexibleBarrier-PT-12b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 110008 steps (126 resets) in 141 ms. (774 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2026-05-24 12:48:12] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:48:13] [INFO ] [Real]Absence check using 14 positive place invariants in 76 ms returned sat
[2026-05-24 12:48:15] [INFO ] [Real]Absence check using state equation in 1523 ms returned sat
[2026-05-24 12:48:15] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 281 ms.
[2026-05-24 12:48:16] [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 12:48:17] [INFO ] [Nat]Absence check using 14 positive place invariants in 67 ms returned sat
[2026-05-24 12:48:18] [INFO ] [Nat]Absence check using state equation in 1376 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:19] [INFO ] Deduced a trap composed of 70 places in 598 ms of which 86 ms to minimize.
[2026-05-24 12:48:19] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 906 ms
[2026-05-24 12:48:20] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 427 ms.
[2026-05-24 12:48:21] [INFO ] Added : 30 causal constraints over 6 iterations in 1793 ms. Result :unknown
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:48:22] [INFO ] [Real]Absence check using 14 positive place invariants in 62 ms returned sat
[2026-05-24 12:48:23] [INFO ] [Real]Absence check using state equation in 1300 ms returned sat
[2026-05-24 12:48:23] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 226 ms.
[2026-05-24 12:48:24] [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 12:48:25] [INFO ] [Nat]Absence check using 14 positive place invariants in 62 ms returned sat
[2026-05-24 12:48:26] [INFO ] [Nat]Absence check using state equation in 1129 ms returned sat
[2026-05-24 12:48:26] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 193 ms.
Maximisation of solution failed !
Minimization took 13 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:48:30] [INFO ] [Real]Absence check using 14 positive place invariants in 100 ms returned sat
[2026-05-24 12:48:31] [INFO ] [Real]Absence check using state equation in 1339 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:32] [INFO ] Deduced a trap composed of 72 places in 599 ms of which 73 ms to minimize.
[2026-05-24 12:48:32] [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 12:48:33] [INFO ] [Nat]Absence check using 14 positive place invariants in 72 ms returned sat
[2026-05-24 12:48:35] [INFO ] [Nat]Absence check using state equation in 1505 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:35] [INFO ] Deduced a trap composed of 72 places in 340 ms of which 45 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:36] [INFO ] Deduced a trap composed of 24 places in 401 ms of which 30 ms to minimize.
[2026-05-24 12:48:36] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1171 ms
[2026-05-24 12:48:36] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 353 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 12:48:38] [INFO ] [Real]Absence check using 14 positive place invariants in 120 ms returned sat
[2026-05-24 12:48:40] [INFO ] [Real]Absence check using state equation in 1410 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:42] [INFO ] Deduced a trap composed of 202 places in 2580 ms of which 718 ms to minimize.
[2026-05-24 12:48:42] [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 3
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.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:871)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2252)
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 12:48:43] [INFO ] [Real]Absence check using 14 positive place invariants in 58 ms returned sat
[2026-05-24 12:48:44] [INFO ] [Real]Absence check using state equation in 1565 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:47] [INFO ] Deduced a trap composed of 635 places in 2763 ms of which 957 ms to minimize.
[2026-05-24 12:48:47] [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 4
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.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:871)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2252)
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 12:48:48] [INFO ] [Real]Absence check using 14 positive place invariants in 59 ms returned sat
[2026-05-24 12:48:49] [INFO ] [Real]Absence check using state equation in 1399 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:50] [INFO ] Deduced a trap composed of 70 places in 734 ms of which 118 ms to minimize.
[2026-05-24 12:48:51] [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 12:48:51] [INFO ] [Nat]Absence check using 14 positive place invariants in 96 ms returned sat
[2026-05-24 12:48:53] [INFO ] [Nat]Absence check using state equation in 1648 ms returned sat
[2026-05-24 12:48:54] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 379 ms.
Maximisation of solution failed !
Minimization took 1 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:48:56] [INFO ] [Real]Absence check using 14 positive place invariants in 99 ms returned sat
[2026-05-24 12:48:58] [INFO ] [Real]Absence check using state equation in 1834 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:48:59] [INFO ] Deduced a trap composed of 70 places in 799 ms of which 119 ms to minimize.
[2026-05-24 12:48:59] [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 12:49:00] [INFO ] [Nat]Absence check using 14 positive place invariants in 74 ms returned sat
[2026-05-24 12:49:01] [INFO ] [Nat]Absence check using state equation in 1555 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:49:02] [INFO ] Deduced a trap composed of 112 places in 456 ms of which 93 ms to minimize.
[2026-05-24 12:49:02] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 720 ms
[2026-05-24 12:49:03] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 285 ms.
Maximisation of solution failed !
Minimization took 1 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-24 12:49:05] [INFO ] [Real]Absence check using 14 positive place invariants in 61 ms returned sat
[2026-05-24 12:49:07] [INFO ] [Real]Absence check using state equation in 1506 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:49:09] [INFO ] Deduced a trap composed of 635 places in 2053 ms of which 788 ms to minimize.
[2026-05-24 12:49:09] [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 12:49:10] [INFO ] [Nat]Absence check using 14 positive place invariants in 69 ms returned sat
[2026-05-24 12:49:11] [INFO ] [Nat]Absence check using state equation in 1452 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:49:13] [INFO ] Deduced a trap composed of 633 places in 2309 ms of which 1049 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:49:15] [INFO ] Deduced a trap composed of 635 places in 1804 ms of which 774 ms to minimize.
[2026-05-24 12:49:15] [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 7
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.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:871)
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 12:49:16] [INFO ] [Real]Absence check using 14 positive place invariants in 87 ms returned sat
[2026-05-24 12:49:18] [INFO ] [Real]Absence check using state equation in 1799 ms returned sat
[2026-05-24 12:49:18] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 274 ms.
[2026-05-24 12:49:19] [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 12:49:20] [INFO ] [Nat]Absence check using 14 positive place invariants in 66 ms returned sat
[2026-05-24 12:49:21] [INFO ] [Nat]Absence check using state equation in 1498 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:49:24] [INFO ] Deduced a trap composed of 635 places in 2350 ms of which 790 ms to minimize.
[2026-05-24 12:49:24] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 2641 ms
[2026-05-24 12:49:24] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")... while checking expression at index 8
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:957)
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 12:49:25] [INFO ] [Real]Absence check using 14 positive place invariants in 60 ms returned sat
[2026-05-24 12:49:26] [INFO ] [Real]Absence check using state equation in 1104 ms returned sat
[2026-05-24 12:49:26] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 187 ms.
[2026-05-24 12:49:27] [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 12:49:28] [INFO ] [Nat]Absence check using 14 positive place invariants in 96 ms returned sat
[2026-05-24 12:49:29] [INFO ] [Nat]Absence check using state equation in 1369 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-24 12:49:31] [INFO ] Deduced a trap composed of 639 places in 2101 ms of which 668 ms to minimize.
[2026-05-24 12:49:31] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 2339 ms
[2026-05-24 12:49:31] [INFO ] Computed and/alt/rep : 2101/3349/2101 causal constraints (skipped 187 transitions) in 150 ms.
[2026-05-24 12:49:32] [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 9
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, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Support contains 10 out of 1988 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1988/1988 places, 2289/2289 transitions.
Graph (trivial) has 1935 edges and 1988 vertex of which 74 / 1988 are part of one of the 12 SCC in 18 ms
Free SCC test removed 62 places
Drop transitions (Empty/Sink Transition effects.) removed 75 transitions
Reduce isomorphic transitions removed 75 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 496 transitions
Trivial Post-agglo rules discarded 496 transitions
Performed 496 trivial Post agglomeration. Transition count delta: 496
Iterating post reduction 0 with 496 rules applied. Total rules applied 497 place count 1926 transition count 1718
Reduce places removed 496 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 498 rules applied. Total rules applied 995 place count 1430 transition count 1716
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 997 place count 1428 transition count 1716
Performed 125 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 125 Pre rules applied. Total rules applied 997 place count 1428 transition count 1591
Deduced a syphon composed of 125 places in 4 ms
Reduce places removed 125 places and 0 transitions.
Iterating global reduction 3 with 250 rules applied. Total rules applied 1247 place count 1303 transition count 1591
Discarding 748 places :
Symmetric choice reduction at 3 with 748 rule applications. Total rules 1995 place count 555 transition count 843
Iterating global reduction 3 with 748 rules applied. Total rules applied 2743 place count 555 transition count 843
Performed 11 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 11 Pre rules applied. Total rules applied 2743 place count 555 transition count 832
Deduced a syphon composed of 11 places in 2 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 3 with 22 rules applied. Total rules applied 2765 place count 544 transition count 832
Discarding 118 places :
Symmetric choice reduction at 3 with 118 rule applications. Total rules 2883 place count 426 transition count 714
Iterating global reduction 3 with 118 rules applied. Total rules applied 3001 place count 426 transition count 714
Ensure Unique test removed 113 transitions
Reduce isomorphic transitions removed 113 transitions.
Iterating post reduction 3 with 113 rules applied. Total rules applied 3114 place count 426 transition count 601
Performed 63 Post agglomeration using F-continuation condition.Transition count delta: 63
Deduced a syphon composed of 63 places in 0 ms
Reduce places removed 63 places and 0 transitions.
Iterating global reduction 4 with 126 rules applied. Total rules applied 3240 place count 363 transition count 538
Drop transitions (Empty/Sink Transition effects.) removed 24 transitions
Reduce isomorphic transitions removed 24 transitions.
Iterating post reduction 4 with 24 rules applied. Total rules applied 3264 place count 363 transition count 514
Discarding 11 places :
Symmetric choice reduction at 5 with 11 rule applications. Total rules 3275 place count 352 transition count 503
Iterating global reduction 5 with 11 rules applied. Total rules applied 3286 place count 352 transition count 503
Free-agglomeration rule applied 274 times.
Iterating global reduction 5 with 274 rules applied. Total rules applied 3560 place count 352 transition count 229
Reduce places removed 274 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 120 transitions
Reduce isomorphic transitions removed 120 transitions.
Graph (complete) has 214 edges and 78 vertex of which 68 are kept as prefixes of interest. Removing 10 places using SCC suffix rule.1 ms
Discarding 10 places :
Also discarding 0 output transitions
Iterating post reduction 5 with 395 rules applied. Total rules applied 3955 place count 68 transition count 109
Drop transitions (Empty/Sink Transition effects.) removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 6 with 14 rules applied. Total rules applied 3969 place count 68 transition count 95
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 7 with 1 rules applied. Total rules applied 3970 place count 67 transition count 94
Discarding 1 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Remove reverse transitions (loop back) rule discarded transition t2.t3.t4.t1986.t719.t720 and 1 places that fell out of Prefix Of Interest.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Graph (trivial) has 48 edges and 65 vertex of which 18 / 65 are part of one of the 9 SCC in 0 ms
Free SCC test removed 9 places
Iterating post reduction 7 with 3 rules applied. Total rules applied 3973 place count 56 transition count 92
Drop transitions (Empty/Sink Transition effects.) removed 18 transitions
Reduce isomorphic transitions removed 18 transitions.
Iterating post reduction 8 with 18 rules applied. Total rules applied 3991 place count 56 transition count 74
Performed 11 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 9 with 11 Pre rules applied. Total rules applied 3991 place count 56 transition count 63
Deduced a syphon composed of 11 places in 0 ms
Reduce places removed 11 places and 0 transitions.
Iterating global reduction 9 with 22 rules applied. Total rules applied 4013 place count 45 transition count 63
Drop transitions (Empty/Sink Transition effects.) removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 9 with 10 rules applied. Total rules applied 4023 place count 45 transition count 53
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Deduced a syphon composed of 9 places in 0 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 10 with 18 rules applied. Total rules applied 4041 place count 36 transition count 44
Free-agglomeration rule applied 10 times.
Iterating global reduction 10 with 10 rules applied. Total rules applied 4051 place count 36 transition count 34
Reduce places removed 13 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 10 with 22 rules applied. Total rules applied 4073 place count 23 transition count 25
Applied a total of 4073 rules in 575 ms. Remains 23 /1988 variables (removed 1965) and now considering 25/2289 (removed 2264) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 589 ms. Remains : 23/1988 places, 25/2289 transitions.
// Phase 1: matrix 25 rows 23 cols
[2026-05-24 12:49:33] [INFO ] Computed 8 invariants in 1 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 1000000 steps (2 resets) in 1250 ms. (799 steps per ms)
FORMULA FlexibleBarrier-PT-12b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA FlexibleBarrier-PT-12b-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (2 resets) in 350 ms. (2849 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 5 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 12:49:34] [INFO ] Flatten gal took : 40 ms
[2026-05-24 12:49:34] [INFO ] Flatten gal took : 9 ms
[2026-05-24 12:49:34] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4712483276629713900.gal : 7 ms
[2026-05-24 12:49:34] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4215586894024144644.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/ReachabilityCardinality4712483276629713900.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4215586894024144644.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
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
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 83649 ms.

BK_STOP 1779626975082

--------------------
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-12b"
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-12b, 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-177955812400048"
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 [ "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 ;