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.r082-smll-177946993500029.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 itstools
Input is DatabaseWithMutex-COL-20, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r082-smll-177946993500029
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 484K
-rw-r--r-- 1 mcc users 9.3K Mar 5 14:37 CTLCardinality.txt
-rw-r--r-- 1 mcc users 97K Mar 5 14:37 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.9K Mar 5 14:36 CTLFireability.txt
-rw-r--r-- 1 mcc users 63K Mar 5 14:36 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.3K Mar 15 08:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 08:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 08:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.3K Mar 5 14:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 71K Mar 5 14:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.0K Mar 5 14:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 70K Mar 5 14:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 08:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 38K 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 DatabaseWithMutex-COL-20-UpperBounds-00
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-01
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-02
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-03
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-04
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-05
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-06
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-07
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-08
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-09
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-10
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-11
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-12
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-13
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-14
FORMULA_NAME DatabaseWithMutex-COL-20-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779500117072

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DatabaseWithMutex-COL-20
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202604301425
[2026-05-23 01:35:19] [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]
[2026-05-23 01:35:19] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 01:35:19] [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.
[2026-05-23 01:35:20] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-23 01:35:21] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1281 ms
[2026-05-23 01:35:21] [INFO ] Imported 11 HL places and 8 HL transitions for a total of 3260 PT places and 3200.0 transition bindings in 35 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 16 ms.
Reduction of identical properties reduced properties to check from 16 to 7
[2026-05-23 01:35:21] [INFO ] Built PT skeleton of HLPN with 11 places and 8 transitions 22 arcs in 9 ms.
[2026-05-23 01:35:21] [INFO ] Skeletonized 7 HLPN properties in 0 ms.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17916594519822259413.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2474954911383065614.kers'
[2026-05-23 01:35:21] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17916594519822259413.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2474954911383065614.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 8 rows 10 cols 20 entries
Finished phase 1 with 5 SingleSign rule and 2 generalized
[2026-05-23 01:35:21] [INFO ] Computed 4 invariants in 0 ms
Computed 4 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-2474954911383065614.kers
Total runtime 1 ms.
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[20, 0, 20, 0, 0, 0, 0] Max Struct:[20, 380, 20, 380, 20, 20, 20]
FORMULA DatabaseWithMutex-COL-20-UpperBounds-07 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-20-UpperBounds-09 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-20-UpperBounds-10 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-20-UpperBounds-15 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-20-UpperBounds-02 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-20-UpperBounds-14 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-20-UpperBounds-00 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2026-05-23 01:35:21] [INFO ] Invariant cache hit.
[2026-05-23 01:35:21] [INFO ] [Real]Absence check using 3 positive place invariants in 8 ms returned sat
[2026-05-23 01:35:21] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 5 ms returned sat
[2026-05-23 01:35:21] [INFO ] [Real]Absence check using state equation in 22 ms returned sat
[2026-05-23 01:35:21] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 01:35:21] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 01:35:21] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 01:35:21] [INFO ] [Nat]Absence check using state equation in 30 ms returned sat
[2026-05-23 01:35:21] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-23 01:35:22] [INFO ] Added : 4 causal constraints over 1 iterations in 37 ms. Result :sat
Minimization took 33 ms.
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2026-05-23 01:35:22] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-23 01:35:22] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-23 01:35:22] [INFO ] Added : 4 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 28 ms.
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using state equation in 25 ms returned sat
[2026-05-23 01:35:22] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 01:35:22] [INFO ] Added : 1 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 7 ms.
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using state equation in 16 ms returned sat
[2026-05-23 01:35:22] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 01:35:22] [INFO ] Added : 4 causal constraints over 1 iterations in 14 ms. Result :sat
Minimization took 7 ms.
[2026-05-23 01:35:22] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2026-05-23 01:35:22] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-23 01:35:22] [INFO ] Added : 4 causal constraints over 1 iterations in 20 ms. Result :sat
Minimization took 7 ms.
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Real]Absence check using state equation in 10 ms returned sat
[2026-05-23 01:35:22] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 01:35:22] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2026-05-23 01:35:22] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 01:35:22] [INFO ] Added : 4 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 9 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[380, 380, 20, 20, 20]
Transition Release forces synchronizations/join behavior on parameter s of sort site
Transition Acquire forces synchronizations/join behavior on parameter f of sort file
[2026-05-23 01:35:22] [INFO ] Unfolded HLPN to a Petri net with 3260 places and 3200 transitions 23200 arcs in 230 ms.
[2026-05-23 01:35:22] [INFO ] Unfolded 5 HLPN properties in 1 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[380, 380, 20, 20, 20]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[380, 380, 20, 20, 20]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14298070012748735687.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16389308299437641743.kers'
[2026-05-23 01:35:22] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14298070012748735687.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16389308299437641743.kers]
Culled 0 columns in 8 ms.
// Phase 1: matrix 3200 rows 3260 cols 23200 entries
Finished phase 1 with 2400 SingleSign rule and 400 generalized
[2026-05-23 01:35:23] [INFO ] Computed 460 invariants in 75 ms
Computed 460 P flows in 76 ms.
Exported basis to /tmp/petrispot-output-16389308299437641743.kers
Total runtime 88 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0] Max Struct:[380, 380, 20, 20, 20]
RANDOM walk for 10000 steps (2 resets) in 1103 ms. (9 steps per ms)
FORMULA DatabaseWithMutex-COL-20-UpperBounds-12 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 372 ms. (107 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[141, 121, 7, 14] Max Struct:[380, 380, 20, 20]
[2026-05-23 01:35:24] [INFO ] Invariant cache hit.
[2026-05-23 01:35:25] [INFO ] [Real]Absence check using 79 positive place invariants in 225 ms returned sat
[2026-05-23 01:35:26] [INFO ] [Real]Absence check using 79 positive and 381 generalized place invariants in 671 ms returned sat
[2026-05-23 01:35:29] [INFO ] [Real]Absence check using state equation in 3260 ms returned unknown
[2026-05-23 01:35:30] [INFO ] [Real]Absence check using 79 positive place invariants in 211 ms returned sat
[2026-05-23 01:35:31] [INFO ] [Real]Absence check using 79 positive and 381 generalized place invariants in 427 ms returned sat
[2026-05-23 01:35:34] [INFO ] [Real]Absence check using state equation in 3652 ms returned unknown
[2026-05-23 01:35:35] [INFO ] [Real]Absence check using 79 positive place invariants in 219 ms returned sat
[2026-05-23 01:35:35] [INFO ] [Real]Absence check using 79 positive and 381 generalized place invariants in 222 ms returned sat
[2026-05-23 01:35:38] [INFO ] [Real]Absence check using state equation in 2683 ms returned sat
[2026-05-23 01:35:39] [INFO ] Computed and/alt/rep : 2000/2000/2000 causal constraints (skipped 800 transitions) in 334 ms.
[2026-05-23 01:35:39] [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:308)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1143)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:881)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2278)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:207)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:803)
at fr.lip6.move.gal.application.Application.start(Application.java:195)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
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:615)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
at org.eclipse.equinox.launcher.Main.run(Main.java:1415)
at org.eclipse.equinox.launcher.Main.main(Main.java:1387)
[2026-05-23 01:35:40] [INFO ] [Real]Absence check using 79 positive place invariants in 217 ms returned sat
[2026-05-23 01:35:40] [INFO ] [Real]Absence check using 79 positive and 381 generalized place invariants in 264 ms returned sat
[2026-05-23 01:35:43] [INFO ] [Real]Absence check using state equation in 2929 ms returned sat
[2026-05-23 01:35:44] [INFO ] Computed and/alt/rep : 2000/2000/2000 causal constraints (skipped 800 transitions) in 378 ms.
[2026-05-23 01:35:44] [INFO ] Added : 0 causal constraints over 0 iterations in 390 ms. Result :unknown
Current structural bounds on expressions (after SMT) : Max Seen:[141, 121, 7, 14] Max Struct:[380, 380, 20, 20]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[141, 212, 12, 15] Max Struct:[380, 380, 20, 20]
Support contains 1600 out of 3260 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3260/3260 places, 3200/3200 transitions.
Performed 400 Post agglomeration using F-continuation condition.Transition count delta: 400
Iterating post reduction 0 with 400 rules applied. Total rules applied 400 place count 3260 transition count 2800
Reduce places removed 420 places and 0 transitions.
Performed 400 Post agglomeration using F-continuation condition.Transition count delta: 400
Iterating post reduction 1 with 820 rules applied. Total rules applied 1220 place count 2840 transition count 2400
Reduce places removed 400 places and 0 transitions.
Iterating post reduction 2 with 400 rules applied. Total rules applied 1620 place count 2440 transition count 2400
Free-agglomeration rule applied 400 times.
Iterating global reduction 3 with 400 rules applied. Total rules applied 2020 place count 2440 transition count 2000
Reduce places removed 400 places and 0 transitions.
Iterating post reduction 3 with 400 rules applied. Total rules applied 2420 place count 2040 transition count 2000
Applied a total of 2420 rules in 1302 ms. Remains 2040 /3260 variables (removed 1220) and now considering 2000/3200 (removed 1200) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1316 ms. Remains : 2040/3260 places, 2000/3200 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-12244993293544895584.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11730551231306183634.kers'
[2026-05-23 01:35:48] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-12244993293544895584.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11730551231306183634.kers]
Culled 0 columns in 5 ms.
// Phase 1: matrix 2000 rows 2040 cols 20000 entries
Finished phase 1 with 1200 SingleSign rule and 400 generalized
[2026-05-23 01:35:48] [INFO ] Computed 440 invariants in 46 ms
Computed 440 P flows in 46 ms.
Exported basis to /tmp/petrispot-output-11730551231306183634.kers
Total runtime 54 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[141, 212, 12, 15] Max Struct:[380, 380, 20, 20]
RANDOM walk for 433271 steps (1 resets) in 30001 ms. (14 steps per ms)
FORMULA DatabaseWithMutex-COL-20-UpperBounds-06 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-20-UpperBounds-08 380 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-20-UpperBounds-01 380 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 391101 steps (0 resets) in 10007 ms. (39 steps per ms)
FORMULA DatabaseWithMutex-COL-20-UpperBounds-05 380 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DatabaseWithMutex-COL-20-UpperBounds-03 380 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Current structural bounds on expressions (after WALK) : Max Seen:[16] Max Struct:[20]
[2026-05-23 01:36:28] [INFO ] Invariant cache hit.
[2026-05-23 01:36:28] [INFO ] [Real]Absence check using 59 positive place invariants in 170 ms returned sat
[2026-05-23 01:36:28] [INFO ] [Real]Absence check using 59 positive and 381 generalized place invariants in 218 ms returned sat
[2026-05-23 01:36:31] [INFO ] [Real]Absence check using state equation in 2507 ms returned sat
[2026-05-23 01:36:31] [INFO ] Computed and/alt/rep : 800/800/800 causal constraints (skipped 800 transitions) in 162 ms.
[2026-05-23 01:36:32] [INFO ] Added : 2 causal constraints over 1 iterations in 819 ms. Result :sat
Minimization took 5218 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[16] Max Struct:[20]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[16] Max Struct:[20]
Support contains 400 out of 2040 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2040/2040 places, 2000/2000 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 400 transitions
Trivial Post-agglo rules discarded 400 transitions
Performed 400 trivial Post agglomeration. Transition count delta: 400
Iterating post reduction 0 with 400 rules applied. Total rules applied 400 place count 2040 transition count 1600
Reduce places removed 400 places and 0 transitions.
Iterating post reduction 1 with 400 rules applied. Total rules applied 800 place count 1640 transition count 1600
Performed 400 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 400 Pre rules applied. Total rules applied 800 place count 1640 transition count 1200
Renaming transitions due to excessive name length > 1024 char.
Deduced a syphon composed of 400 places in 1 ms
Reduce places removed 400 places and 0 transitions.
Iterating global reduction 2 with 800 rules applied. Total rules applied 1600 place count 1240 transition count 1200
Applied a total of 1600 rules in 305 ms. Remains 1240 /2040 variables (removed 800) and now considering 1200/2000 (removed 800) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 307 ms. Remains : 1240/2040 places, 1200/2000 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14741751302114110052.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1627809155759590482.kers'
[2026-05-23 01:36:38] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14741751302114110052.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1627809155759590482.kers]
Culled 0 columns in 3 ms.
// Phase 1: matrix 1200 rows 1240 cols 18400 entries
Finished phase 1 with 400 SingleSign rule and 400 generalized
[2026-05-23 01:36:38] [INFO ] Computed 440 invariants in 30 ms
Computed 440 P flows in 31 ms.
Exported basis to /tmp/petrispot-output-1627809155759590482.kers
Total runtime 36 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[16] Max Struct:[20]
RANDOM walk for 910146 steps (2 resets) in 30001 ms. (30 steps per ms)
BEST_FIRST walk for 520514 steps (1 resets) in 5001 ms. (104 steps per ms)
FORMULA DatabaseWithMutex-COL-20-UpperBounds-11 20 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DatabaseWithMutex-COL-20-UpperBounds-13 20 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DatabaseWithMutex-COL-20-UpperBounds-04 20 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 113744 ms.

BK_STOP 1779500233318

--------------------
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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="DatabaseWithMutex-COL-20"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
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 itstools"
echo " Input is DatabaseWithMutex-COL-20, 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 r082-smll-177946993500029"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DatabaseWithMutex-COL-20.tgz
mv DatabaseWithMutex-COL-20 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 ;