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.r223-smll-177969946300011.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 Philosophers-COL-010000, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r223-smll-177969946300011
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 856K
-rw-r--r-- 1 mcc users 6.1K Mar 5 11:32 CTLCardinality.txt
-rw-r--r-- 1 mcc users 58K Mar 5 11:32 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.5K Mar 5 11:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 36K Mar 5 11:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.2K Mar 16 08:38 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Mar 16 08:38 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 16 08:38 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 16 08:38 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 5 12:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 109K Mar 5 12:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.1K Mar 5 11:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 68K Mar 5 11:56 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 16 08:38 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 16 08:38 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 7 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 447K 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 Philosophers-COL-010000-UpperBounds-00
FORMULA_NAME Philosophers-COL-010000-UpperBounds-01
FORMULA_NAME Philosophers-COL-010000-UpperBounds-02
FORMULA_NAME Philosophers-COL-010000-UpperBounds-03
FORMULA_NAME Philosophers-COL-010000-UpperBounds-04
FORMULA_NAME Philosophers-COL-010000-UpperBounds-05
FORMULA_NAME Philosophers-COL-010000-UpperBounds-06
FORMULA_NAME Philosophers-COL-010000-UpperBounds-07
FORMULA_NAME Philosophers-COL-010000-UpperBounds-08
FORMULA_NAME Philosophers-COL-010000-UpperBounds-09
FORMULA_NAME Philosophers-COL-010000-UpperBounds-10
FORMULA_NAME Philosophers-COL-010000-UpperBounds-11
FORMULA_NAME Philosophers-COL-010000-UpperBounds-12
FORMULA_NAME Philosophers-COL-010000-UpperBounds-13
FORMULA_NAME Philosophers-COL-010000-UpperBounds-14
FORMULA_NAME Philosophers-COL-010000-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779788461016

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Philosophers-COL-010000
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202505121319
[2026-05-26 09:41:03] [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]
[2026-05-26 09:41:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 09:41:03] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2026-05-26 09:41:04] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-26 09:41:05] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1558 ms
[2026-05-26 09:41:05] [INFO ] Imported 5 HL places and 5 HL transitions for a total of 50000 PT places and 50000.0 transition bindings in 36 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 8 ms.
Reduction of identical properties reduced properties to check from 16 to 5
[2026-05-26 09:41:05] [INFO ] Built PT skeleton of HLPN with 5 places and 5 transitions 15 arcs in 9 ms.
[2026-05-26 09:41:05] [INFO ] Skeletonized 5 HLPN properties in 0 ms.
// Phase 1: matrix 5 rows 5 cols
[2026-05-26 09:41:05] [INFO ] Computed 2 invariants in 4 ms
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[10000, 0, 10000, 0, 0] Max Struct:[10000, 5000, 10000, 10000, 10000]
FORMULA Philosophers-COL-010000-UpperBounds-06 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-010000-UpperBounds-09 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-010000-UpperBounds-10 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-010000-UpperBounds-13 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-010000-UpperBounds-15 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-010000-UpperBounds-02 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-010000-UpperBounds-00 10000 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2026-05-26 09:41:05] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-26 09:41:05] [INFO ] [Real]Absence check using 2 positive place invariants in 8 ms returned sat
[2026-05-26 09:41:05] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-26 09:41:05] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-26 09:41:05] [INFO ] Added : 1 causal constraints over 1 iterations in 36 ms. Result :sat
Minimization took 16 ms.
[2026-05-26 09:41:05] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-26 09:41:06] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-26 09:41:06] [INFO ] [Nat]Absence check using state equation in 7 ms returned sat
[2026-05-26 09:41:06] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-26 09:41:06] [INFO ] Added : 1 causal constraints over 1 iterations in 10 ms. Result :sat
Minimization took 5 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-26 09:41:06] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-26 09:41:06] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2026-05-26 09:41:06] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-26 09:41:06] [INFO ] Added : 0 causal constraints over 0 iterations in 5 ms. Result :sat
Minimization took 3 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-26 09:41:06] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2026-05-26 09:41:06] [INFO ] [Real]Absence check using state equation in 8 ms returned sat
[2026-05-26 09:41:06] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 1 ms.
[2026-05-26 09:41:06] [INFO ] Added : 0 causal constraints over 0 iterations in 5 ms. Result :sat
Minimization took 4 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 0] Max Struct:[5000, 10000, 10000]
Arc [1:1*[(MOD (ADD (MOD (MINUS $x 1) 10000) 10000) 10000)]] contains successor/predecessor on variables of sort Philo
[2026-05-26 09:41:06] [INFO ] Unfolded HLPN to a Petri net with 50000 places and 50000 transitions 160000 arcs in 513 ms.
[2026-05-26 09:41:06] [INFO ] Unfolded 3 HLPN properties in 24 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0] Max Struct:[+inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 0, 0] Max Struct:[5000, 10000, 10000]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0] Max Struct:[5000, 10000, 10000]
// Phase 1: matrix 50000 rows 50000 cols
[2026-05-26 09:41:07] [INFO ] Computed 20000 invariants in 372 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[5000, 10000, 10000]
RANDOM walk for 6252 steps (1 resets) in 30005 ms. (0 steps per ms)
BEST_FIRST walk for 20003 steps (0 resets) in 16485 ms. (1 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[240, 1437, 1332] Max Struct:[5000, 10000, 10000]
[2026-05-26 09:41:54] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-26 09:41:59] [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: Broken pipe ... 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: Broken pipe ...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:829)
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
[2026-05-26 09:42:04] [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 1
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.verifyPossible(DeadlockTester.java:829)
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
[2026-05-26 09:42:09] [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: Broken pipe ... 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: Broken pipe ...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:301)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:829)
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)
Current structural bounds on expressions (after SMT) : Max Seen:[240, 1437, 1332] Max Struct:[5000, 10000, 10000]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[240, 1437, 1332] Max Struct:[5000, 10000, 10000]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 588 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 610 ms. Remains : 50000/50000 places, 50000/50000 transitions.
[2026-05-26 09:42:10] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[240, 1437, 1332] Max Struct:[5000, 10000, 10000]
RANDOM walk for 6641 steps (0 resets) in 30002 ms. (0 steps per ms)
BEST_FIRST walk for 21003 steps (0 resets) in 16395 ms. (1 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[870, 2087, 2264] Max Struct:[5000, 10000, 10000]
[2026-05-26 09:42:56] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Current structural bounds on expressions (after SMT) : Max Seen:[870, 2087, 2264] Max Struct:[5000, 10000, 10000]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[870, 2087, 2264] Max Struct:[5000, 10000, 10000]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 402 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 403 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 296 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2026-05-26 09:43:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-26 09:44:54] [INFO ] Performed 3891/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-05-26 09:45:24] [INFO ] Performed 7572/50000 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2026-05-26 09:45:54] [INFO ] Performed 11643/50000 implicitness test of which 0 returned IMPLICIT in 90 seconds.
[2026-05-26 09:46:15] [INFO ] Implicit Places using invariants in 160062 ms returned []
Implicit Place search using SMT only with invariants took 160064 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2026-05-26 09:46:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 215004ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 215338ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 375884 ms. Remains : 50000/50000 places, 50000/50000 transitions.
[2026-05-26 09:49:51] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[870, 2087, 2264] Max Struct:[5000, 10000, 10000]
RANDOM walk for 6718 steps (0 resets) in 30001 ms. (0 steps per ms)
BEST_FIRST walk for 21003 steps (0 resets) in 15729 ms. (1 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[870, 2301, 2264] Max Struct:[5000, 10000, 10000]
[2026-05-26 09:50:37] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Current structural bounds on expressions (after SMT) : Max Seen:[870, 2301, 2264] Max Struct:[5000, 10000, 10000]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[870, 2301, 2264] Max Struct:[5000, 10000, 10000]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 368 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 369 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 386 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2026-05-26 09:51:17] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-26 09:52:37] [INFO ] Performed 4605/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-05-26 09:53:07] [INFO ] Performed 9449/50000 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2026-05-26 09:53:37] [INFO ] Performed 13659/50000 implicitness test of which 0 returned IMPLICIT in 90 seconds.
[2026-05-26 09:53:57] [INFO ] Implicit Places using invariants in 160059 ms returned []
Implicit Place search using SMT only with invariants took 160060 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2026-05-26 09:53:57] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 221082ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 221259ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 381784 ms. Remains : 50000/50000 places, 50000/50000 transitions.
[2026-05-26 09:57:38] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[870, 2301, 2264] Max Struct:[5000, 10000, 10000]
RANDOM walk for 6726 steps (0 resets) in 30002 ms. (0 steps per ms)
BEST_FIRST walk for 21003 steps (0 resets) in 16534 ms. (1 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
[2026-05-26 09:58:25] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Current structural bounds on expressions (after SMT) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 250 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 250 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 235 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2026-05-26 09:59:03] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-26 10:00:18] [INFO ] Performed 4343/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-05-26 10:00:48] [INFO ] Performed 8606/50000 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2026-05-26 10:01:18] [INFO ] Performed 13579/50000 implicitness test of which 0 returned IMPLICIT in 90 seconds.
[2026-05-26 10:01:43] [INFO ] Implicit Places using invariants in 160048 ms returned []
Implicit Place search using SMT only with invariants took 160049 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2026-05-26 10:01:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 219923ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 220033ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 380400 ms. Remains : 50000/50000 places, 50000/50000 transitions.
[2026-05-26 10:05:24] [INFO ] Invariant cache hit.
Current structural bounds on expressions (after invariants) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
RANDOM walk for 6735 steps (0 resets) in 30003 ms. (0 steps per ms)
BEST_FIRST walk for 21003 steps (0 resets) in 15799 ms. (1 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
[2026-05-26 10:06:09] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
Current structural bounds on expressions (after SMT) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[879, 2301, 2264] Max Struct:[5000, 10000, 10000]
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 234 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 235 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 232 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
[2026-05-26 10:06:51] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-26 10:08:05] [INFO ] Performed 4302/50000 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-05-26 10:08:35] [INFO ] Performed 9498/50000 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2026-05-26 10:09:05] [INFO ] Performed 14231/50000 implicitness test of which 0 returned IMPLICIT in 90 seconds.
[2026-05-26 10:09:31] [INFO ] Implicit Places using invariants in 160044 ms returned []
Implicit Place search using SMT only with invariants took 160046 ms to find 0 implicit places.
Running 30000 sub problems to find dead transitions.
[2026-05-26 10:09:31] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
SMT process timed out in 211080ms, After SMT, problems are : Problem set: 0 solved, 30000 unsolved
Search for dead transitions found 0 dead transitions in 211189ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 371501 ms. Remains : 50000/50000 places, 50000/50000 transitions.
[2026-05-26 10:13:07] [INFO ] Flatten gal took : 3066 ms
[2026-05-26 10:13:10] [INFO ] Flatten gal took : 2258 ms
[2026-05-26 10:13:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13303789405316979999.gal : 624 ms
[2026-05-26 10:13:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16605744259073304413.prop : 77 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/ReachabilityCardinality13303789405316979999.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16605744259073304413.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
RANDOM walk for 13489 steps (3 resets) in 120024 ms. (0 steps per ms) remains 6/6 properties
BEST_FIRST walk for 17004 steps (0 resets) in 21058 ms. (0 steps per ms) remains 6/6 properties
BEST_FIRST walk for 17004 steps (0 resets) in 22815 ms. (0 steps per ms) remains 6/6 properties
BEST_FIRST walk for 17004 steps (0 resets) in 20861 ms. (0 steps per ms) remains 6/6 properties
BEST_FIRST walk for 16004 steps (0 resets) in 21566 ms. (0 steps per ms) remains 6/6 properties
Detected timeout of ITS tools.
BEST_FIRST walk for 17004 steps (0 resets) in 22382 ms. (0 steps per ms) remains 6/6 properties
[2026-05-26 10:14:04] [INFO ] Flatten gal took : 2525 ms
[2026-05-26 10:14:04] [INFO ] Applying decomposition
[2026-05-26 10:14:06] [INFO ] Flatten gal took : 2079 ms
BEST_FIRST walk for 16004 steps (0 resets) in 23015 ms. (0 steps per ms) remains 6/6 properties
Probabilistic random walk after 6999 steps, saw 7001 distinct states, run finished after 249464 ms. (steps per millisecond=0 ) properties seen :0
[2026-05-26 10:18:19] [INFO ] Invariant cache hit.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
SMT process timed out in 149452ms, After SMT, problems are : Problem set: 0 solved, 6 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 30000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 21736 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 21744 ms. Remains : 50000/50000 places, 50000/50000 transitions.

BK_TIME_CONFINEMENT_REACHED

--------------------
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="Philosophers-COL-010000"
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 Philosophers-COL-010000, 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 r223-smll-177969946300011"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-COL-010000.tgz
mv Philosophers-COL-010000 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 ;