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.r031-smll-177946790600016.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 AutonomousCar-PT-08b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r031-smll-177946790600016
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 964K
-rw-r--r-- 1 mcc users 6.2K Mar 5 16:50 CTLCardinality.txt
-rw-r--r-- 1 mcc users 63K Mar 5 16:50 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Mar 5 16:50 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 5 16:50 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 15 07:21 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Mar 15 07:21 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:21 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:21 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 5 16:50 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 123K Mar 5 16:50 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K Mar 5 16:50 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Mar 5 16:50 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:21 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:21 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 517K 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 AutonomousCar-PT-08b-UpperBounds-00
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-01
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-02
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-03
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-04
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-05
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-06
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-07
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-08
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-09
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-10
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-11
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-12
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-13
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-14
FORMULA_NAME AutonomousCar-PT-08b-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779472389950

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutonomousCar-PT-08b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-22 17:53:12] [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]
[2026-05-22 17:53:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 17:53:12] [INFO ] Load time of PNML (sax parser for PT used): 375 ms
[2026-05-22 17:53:12] [INFO ] Transformed 357 places.
[2026-05-22 17:53:12] [INFO ] Transformed 1128 transitions.
[2026-05-22 17:53:12] [INFO ] Found NUPN structural information;
[2026-05-22 17:53:12] [INFO ] Parsed PT model containing 357 places and 1128 transitions and 9454 arcs in 624 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 14 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 1128 rows 357 cols
[2026-05-22 17:53:13] [INFO ] Computed 13 invariants in 84 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 (89 resets) in 135 ms. (73 steps per ms)
FORMULA AutonomousCar-PT-08b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 30003 steps (43 resets) in 88 ms. (337 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
[2026-05-22 17:53:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 17:53:14] [INFO ] [Real]Absence check using 13 positive place invariants in 39 ms returned sat
[2026-05-22 17:53:14] [INFO ] [Real]Absence check using state equation in 888 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:16] [INFO ] Deduced a trap composed of 12 places in 1086 ms of which 76 ms to minimize.
[2026-05-22 17:53:16] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 17:53:16] [INFO ] [Nat]Absence check using 13 positive place invariants in 28 ms returned sat
[2026-05-22 17:53:17] [INFO ] [Nat]Absence check using state equation in 729 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:18] [INFO ] Deduced a trap composed of 12 places in 843 ms of which 49 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:19] [INFO ] Deduced a trap composed of 24 places in 873 ms of which 56 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:20] [INFO ] Deduced a trap composed of 23 places in 960 ms of which 68 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:21] [INFO ] Deduced a trap composed of 28 places in 834 ms of which 64 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:21] [INFO ] Deduced a trap composed of 25 places in 799 ms of which 64 ms to minimize.
[2026-05-22 17:53:21] [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 0
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
[2026-05-22 17:53:22] [INFO ] [Real]Absence check using 13 positive place invariants in 22 ms returned sat
[2026-05-22 17:53:22] [INFO ] [Real]Absence check using state equation in 637 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:23] [INFO ] Deduced a trap composed of 7 places in 939 ms of which 63 ms to minimize.
[2026-05-22 17:53:23] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 17:53:24] [INFO ] [Nat]Absence check using 13 positive place invariants in 14 ms returned sat
[2026-05-22 17:53:24] [INFO ] [Nat]Absence check using state equation in 591 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:25] [INFO ] Deduced a trap composed of 7 places in 858 ms of which 55 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:26] [INFO ] Deduced a trap composed of 18 places in 757 ms of which 49 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:27] [INFO ] Deduced a trap composed of 22 places in 692 ms of which 40 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:27] [INFO ] Deduced a trap composed of 35 places in 640 ms of which 73 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:28] [INFO ] Deduced a trap composed of 35 places in 671 ms of which 65 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:29] [INFO ] Deduced a trap composed of 46 places in 585 ms of which 58 ms to minimize.
[2026-05-22 17:53:29] [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 1
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
[2026-05-22 17:53:29] [INFO ] [Real]Absence check using 13 positive place invariants in 18 ms returned sat
[2026-05-22 17:53:29] [INFO ] [Real]Absence check using state equation in 588 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:30] [INFO ] Deduced a trap composed of 35 places in 703 ms of which 48 ms to minimize.
[2026-05-22 17:53:30] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 17:53:30] [INFO ] [Nat]Absence check using 13 positive place invariants in 25 ms returned sat
[2026-05-22 17:53:31] [INFO ] [Nat]Absence check using state equation in 568 ms returned sat
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:32] [INFO ] Deduced a trap composed of 35 places in 843 ms of which 68 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-22 17:53:33] [INFO ] Deduced a trap composed of 35 places in 737 ms of which 60 ms to minimize.
[2026-05-22 17:53:33] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 1757 ms
[2026-05-22 17:53:33] [INFO ] Computed and/alt/rep : 289/332/289 causal constraints (skipped 838 transitions) in 681 ms.
[2026-05-22 17:53:35] [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)
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
Support contains 3 out of 357 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 357/357 places, 1128/1128 transitions.
Graph (trivial) has 338 edges and 357 vertex of which 4 / 357 are part of one of the 2 SCC in 7 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Graph (complete) has 1428 edges and 355 vertex of which 348 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.26 ms
Discarding 7 places :
Also discarding 5 output transitions
Drop transitions (Output transitions of discarded places.) removed 5 transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 154 transitions
Trivial Post-agglo rules discarded 154 transitions
Performed 154 trivial Post agglomeration. Transition count delta: 154
Iterating post reduction 0 with 156 rules applied. Total rules applied 158 place count 348 transition count 963
Reduce places removed 154 places and 0 transitions.
Ensure Unique test removed 19 transitions
Reduce isomorphic transitions removed 19 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 25 transitions
Trivial Post-agglo rules discarded 25 transitions
Performed 25 trivial Post agglomeration. Transition count delta: 25
Iterating post reduction 1 with 198 rules applied. Total rules applied 356 place count 194 transition count 919
Reduce places removed 25 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 2 with 26 rules applied. Total rules applied 382 place count 169 transition count 918
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 383 place count 168 transition count 918
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 6 Pre rules applied. Total rules applied 383 place count 168 transition count 912
Deduced a syphon composed of 6 places in 6 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 4 with 12 rules applied. Total rules applied 395 place count 162 transition count 912
Discarding 30 places :
Symmetric choice reduction at 4 with 30 rule applications. Total rules 425 place count 132 transition count 882
Iterating global reduction 4 with 30 rules applied. Total rules applied 455 place count 132 transition count 882
Ensure Unique test removed 256 transitions
Reduce isomorphic transitions removed 256 transitions.
Iterating post reduction 4 with 256 rules applied. Total rules applied 711 place count 132 transition count 626
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 2 Pre rules applied. Total rules applied 711 place count 132 transition count 624
Deduced a syphon composed of 2 places in 3 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 5 with 4 rules applied. Total rules applied 715 place count 130 transition count 624
Discarding 9 places :
Symmetric choice reduction at 5 with 9 rule applications. Total rules 724 place count 121 transition count 559
Iterating global reduction 5 with 9 rules applied. Total rules applied 733 place count 121 transition count 559
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 8 transitions
Trivial Post-agglo rules discarded 8 transitions
Performed 8 trivial Post agglomeration. Transition count delta: 8
Iterating post reduction 5 with 16 rules applied. Total rules applied 749 place count 121 transition count 543
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 6 with 8 rules applied. Total rules applied 757 place count 113 transition count 543
Performed 41 Post agglomeration using F-continuation condition.Transition count delta: 41
Deduced a syphon composed of 41 places in 1 ms
Reduce places removed 41 places and 0 transitions.
Iterating global reduction 7 with 82 rules applied. Total rules applied 839 place count 72 transition count 502
Discarding 8 places :
Symmetric choice reduction at 7 with 8 rule applications. Total rules 847 place count 64 transition count 430
Iterating global reduction 7 with 8 rules applied. Total rules applied 855 place count 64 transition count 430
Free-agglomeration rule applied 8 times.
Iterating global reduction 7 with 8 rules applied. Total rules applied 863 place count 64 transition count 422
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 7 with 8 rules applied. Total rules applied 871 place count 56 transition count 422
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 8 with 1 rules applied. Total rules applied 872 place count 55 transition count 421
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 873 place count 54 transition count 421
Applied a total of 873 rules in 622 ms. Remains 54 /357 variables (removed 303) and now considering 421/1128 (removed 707) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 638 ms. Remains : 54/357 places, 421/1128 transitions.
// Phase 1: matrix 421 rows 54 cols
[2026-05-22 17:53:36] [INFO ] Computed 12 invariants in 17 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[1, 1, 1]
RANDOM walk for 1000000 steps (3115 resets) in 7179 ms. (139 steps per ms)
FORMULA AutonomousCar-PT-08b-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-08b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (399 resets) in 1503 ms. (664 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 )
[2026-05-22 17:53:45] [INFO ] Flatten gal took : 262 ms
[2026-05-22 17:53:45] [INFO ] Flatten gal took : 172 ms
[2026-05-22 17:53:45] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11333721463855467389.gal : 84 ms
[2026-05-22 17:53:45] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9037794171977564182.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/ReachabilityCardinality11333721463855467389.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9037794171977564182.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:188)
at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:343)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:420)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:405)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:350)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:393)
at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
at java.base/java.io.BufferedReader.implReadLine(BufferedReader.java:370)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:347)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:436)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:1583)
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 33769 ms.

BK_STOP 1779472426098

--------------------
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="AutonomousCar-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 AutonomousCar-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 r031-smll-177946790600016"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-08b.tgz
mv AutonomousCar-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 ;