fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r095-smll-177946996300003
Last Updated
Jun 17, 2026

About the Execution of 2025-gold for DatabaseWithMutex-COL-10

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
476.023 72617.00 95274.00 424.30 90 90 10 90 90 90 10 90 10 10 90 10 10 10 10 10 normal

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.r095-smll-177946996300003.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 DatabaseWithMutex-COL-10, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r095-smll-177946996300003
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 472K
-rw-r--r-- 1 mcc users 8.3K Mar 5 14:34 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K Mar 5 14:34 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Mar 5 14:34 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 5 14:34 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 15 08:43 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 08:43 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 08:43 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:43 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.2K Mar 5 14:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 5 14:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 5 14:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 92K Mar 5 14:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 08:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 08:43 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 27K 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-10-UpperBounds-00
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-01
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-02
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-03
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-04
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-05
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-06
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-07
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-08
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-09
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-10
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-11
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-12
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-13
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-14
FORMULA_NAME DatabaseWithMutex-COL-10-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779521180289

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DatabaseWithMutex-COL-10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202505121319
[2026-05-23 07:26:22] [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 07:26:22] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 07:26:23] [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 07:26:23] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-23 07:26:24] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1308 ms
[2026-05-23 07:26:24] [INFO ] Imported 11 HL places and 8 HL transitions for a total of 830 PT places and 800.0 transition bindings in 37 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 15 ms.
Reduction of identical properties reduced properties to check from 16 to 9
[2026-05-23 07:26:24] [INFO ] Built PT skeleton of HLPN with 11 places and 8 transitions 22 arcs in 10 ms.
[2026-05-23 07:26:24] [INFO ] Skeletonized 9 HLPN properties in 0 ms.
// Phase 1: matrix 8 rows 11 cols
[2026-05-23 07:26:24] [INFO ] Computed 4 invariants in 7 ms
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[0, 0, 0, 0, 10, 10, 10, 0, 0] Max Struct:[90, 90, 10, 90, 10, 20, 10, 10, 10]
FORMULA DatabaseWithMutex-COL-10-UpperBounds-11 10 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-10-UpperBounds-13 10 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA DatabaseWithMutex-COL-10-UpperBounds-08 10 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2026-05-23 07:26:24] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive place invariants in 9 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using state equation in 24 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-23 07:26:25] [INFO ] Added : 6 causal constraints over 2 iterations in 63 ms. Result :sat
Minimization took 29 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-23 07:26:25] [INFO ] Added : 5 causal constraints over 1 iterations in 23 ms. Result :sat
Minimization took 10 ms.
[2026-05-23 07:26:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using state equation in 17 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 5 ms.
[2026-05-23 07:26:25] [INFO ] Added : 5 causal constraints over 1 iterations in 21 ms. Result :sat
Minimization took 21 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using state equation in 20 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 07:26:25] [INFO ] Added : 5 causal constraints over 1 iterations in 16 ms. Result :sat
Minimization took 13 ms.
[2026-05-23 07:26:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 07:26:25] [INFO ] Added : 5 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 9 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using state equation in 14 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 07:26:25] [INFO ] Added : 5 causal constraints over 1 iterations in 15 ms. Result :sat
Minimization took 11 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive place invariants in 20 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 4 ms returned unsat
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 6 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Real]Absence check using state equation in 26 ms returned sat
[2026-05-23 07:26:25] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 4 ms.
[2026-05-23 07:26:25] [INFO ] Added : 5 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 17 ms.
[2026-05-23 07:26:25] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 07:26:25] [INFO ] [Nat]Absence check using state equation in 14 ms returned sat
[2026-05-23 07:26:26] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-23 07:26:26] [INFO ] Added : 5 causal constraints over 1 iterations in 17 ms. Result :sat
Minimization took 7 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:26] [INFO ] [Real]Absence check using 3 positive place invariants in 22 ms returned sat
[2026-05-23 07:26:26] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 29 ms returned sat
[2026-05-23 07:26:26] [INFO ] [Real]Absence check using state equation in 159 ms returned sat
[2026-05-23 07:26:26] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 8 ms.
[2026-05-23 07:26:26] [INFO ] Added : 5 causal constraints over 1 iterations in 100 ms. Result :sat
Minimization took 30 ms.
[2026-05-23 07:26:26] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:26] [INFO ] [Nat]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-23 07:26:26] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-23 07:26:26] [INFO ] [Nat]Absence check using state equation in 11 ms returned sat
[2026-05-23 07:26:26] [INFO ] Computed and/alt/rep : 7/8/7 causal constraints (skipped 0 transitions) in 2 ms.
[2026-05-23 07:26:26] [INFO ] Added : 5 causal constraints over 1 iterations in 13 ms. Result :sat
Minimization took 7 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 0, 0, 10, 0, 0] Max Struct:[90, 90, 10, 90, 10, 10, 10]
FORMULA DatabaseWithMutex-COL-10-UpperBounds-09 10 TECHNIQUES TOPOLOGICAL SAT_SMT CPN_APPROX INITIAL_STATE
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 07:26:26] [INFO ] Unfolded HLPN to a Petri net with 830 places and 800 transitions 3800 arcs in 78 ms.
[2026-05-23 07:26:26] [INFO ] Unfolded 6 HLPN properties in 1 ms.
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Adding known information on max bounds.) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[90, 90, 10, 90, 10, 10]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[90, 90, 10, 90, 10, 10]
// Phase 1: matrix 800 rows 830 cols
[2026-05-23 07:26:26] [INFO ] Computed 130 invariants in 98 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0] Max Struct:[90, 90, 10, 90, 10, 10]
RANDOM walk for 10000 steps (2 resets) in 436 ms. (22 steps per ms)
FORMULA DatabaseWithMutex-COL-10-UpperBounds-14 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-12 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 225 ms. (177 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[60, 54, 8, 17] Max Struct:[90, 90, 10, 90]
[2026-05-23 07:26:27] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:27] [INFO ] [Real]Absence check using 29 positive place invariants in 40 ms returned sat
[2026-05-23 07:26:27] [INFO ] [Real]Absence check using 29 positive and 101 generalized place invariants in 132 ms returned sat
[2026-05-23 07:26:28] [INFO ] [Real]Absence check using state equation in 1027 ms returned sat
[2026-05-23 07:26:29] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 108 ms.
[2026-05-23 07:26:29] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:29] [INFO ] [Nat]Absence check using 29 positive place invariants in 26 ms returned sat
[2026-05-23 07:26:29] [INFO ] [Nat]Absence check using 29 positive and 101 generalized place invariants in 89 ms returned sat
[2026-05-23 07:26:30] [INFO ] [Nat]Absence check using state equation in 683 ms returned sat
[2026-05-23 07:26:30] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 126 ms.
Maximisation of solution failed !
Minimization took 2 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:34] [INFO ] [Real]Absence check using 29 positive place invariants in 34 ms returned sat
[2026-05-23 07:26:34] [INFO ] [Real]Absence check using 29 positive and 101 generalized place invariants in 121 ms returned sat
[2026-05-23 07:26:35] [INFO ] [Real]Absence check using state equation in 718 ms returned sat
[2026-05-23 07:26:35] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:35] [INFO ] [Nat]Absence check using 29 positive place invariants in 23 ms returned sat
[2026-05-23 07:26:35] [INFO ] [Nat]Absence check using 29 positive and 101 generalized place invariants in 75 ms returned sat
[2026-05-23 07:26:36] [INFO ] [Nat]Absence check using state equation in 524 ms returned sat
[2026-05-23 07:26:36] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 88 ms.
[2026-05-23 07:26:38] [INFO ] Added : 73 causal constraints over 15 iterations in 1575 ms. Result :sat
Minimization took 583 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:38] [INFO ] [Real]Absence check using 29 positive place invariants in 24 ms returned sat
[2026-05-23 07:26:38] [INFO ] [Real]Absence check using 29 positive and 101 generalized place invariants in 58 ms returned sat
[2026-05-23 07:26:39] [INFO ] [Real]Absence check using state equation in 488 ms returned sat
[2026-05-23 07:26:39] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 95 ms.
[2026-05-23 07:26:39] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:40] [INFO ] [Nat]Absence check using 29 positive place invariants in 39 ms returned sat
[2026-05-23 07:26:40] [INFO ] [Nat]Absence check using 29 positive and 101 generalized place invariants in 91 ms returned sat
[2026-05-23 07:26:40] [INFO ] [Nat]Absence check using state equation in 656 ms returned sat
[2026-05-23 07:26:41] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 79 ms.
[2026-05-23 07:26:44] [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.refineWithCausalOrder(DeadlockTester.java:1140)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:878)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2254)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:219)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:927)
at fr.lip6.move.gal.application.Application.start(Application.java:193)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:208)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:607)
at org.eclipse.equinox.launcher.Main.run(Main.java:1492)
at org.eclipse.equinox.launcher.Main.main(Main.java:1465)
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:45] [INFO ] [Real]Absence check using 29 positive place invariants in 36 ms returned sat
[2026-05-23 07:26:45] [INFO ] [Real]Absence check using 29 positive and 101 generalized place invariants in 96 ms returned sat
[2026-05-23 07:26:46] [INFO ] [Real]Absence check using state equation in 679 ms returned sat
[2026-05-23 07:26:46] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 59 ms.
[2026-05-23 07:26:46] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-23 07:26:46] [INFO ] [Nat]Absence check using 29 positive place invariants in 38 ms returned sat
[2026-05-23 07:26:46] [INFO ] [Nat]Absence check using 29 positive and 101 generalized place invariants in 97 ms returned sat
[2026-05-23 07:26:47] [INFO ] [Nat]Absence check using state equation in 677 ms returned sat
[2026-05-23 07:26:47] [INFO ] Computed and/alt/rep : 600/1400/600 causal constraints (skipped 100 transitions) in 57 ms.
[2026-05-23 07:26:50] [INFO ] Added : 182 causal constraints over 37 iterations in 3043 ms. Result :sat
Minimization took 572 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[60, 54, 8, 17] Max Struct:[90, 90, 10, 90]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[60, 54, 8, 17] Max Struct:[90, 90, 10, 90]
Support contains 400 out of 830 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 830/830 places, 800/800 transitions.
Free-agglomeration rule applied 100 times.
Iterating global reduction 0 with 100 rules applied. Total rules applied 100 place count 830 transition count 700
Reduce places removed 100 places and 0 transitions.
Iterating post reduction 0 with 100 rules applied. Total rules applied 200 place count 730 transition count 700
Free-agglomeration rule (complex) applied 200 times.
Iterating global reduction 1 with 200 rules applied. Total rules applied 400 place count 730 transition count 500
Reduce places removed 210 places and 0 transitions.
Iterating post reduction 1 with 210 rules applied. Total rules applied 610 place count 520 transition count 500
Applied a total of 610 rules in 268 ms. Remains 520 /830 variables (removed 310) and now considering 500/800 (removed 300) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 285 ms. Remains : 520/830 places, 500/800 transitions.
// Phase 1: matrix 500 rows 520 cols
[2026-05-23 07:26:51] [INFO ] Computed 120 invariants in 27 ms
Current structural bounds on expressions (after invariants) : Max Seen:[60, 54, 8, 17] Max Struct:[90, 90, 10, 90]
RANDOM walk for 1000000 steps (2 resets) in 18103 ms. (55 steps per ms)
FORMULA DatabaseWithMutex-COL-10-UpperBounds-06 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-15 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-02 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-07 90 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-00 90 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1581456 steps (4 resets) in 10002 ms. (158 steps per ms)
FORMULA DatabaseWithMutex-COL-10-UpperBounds-03 90 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-10 90 TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DatabaseWithMutex-COL-10-UpperBounds-01 90 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Current structural bounds on expressions (after WALK) : Max Seen:[32] Max Struct:[90]
[2026-05-23 07:27:19] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 07:27:19] [INFO ] [Real]Absence check using 18 positive place invariants in 11 ms returned sat
[2026-05-23 07:27:19] [INFO ] [Real]Absence check using 18 positive and 102 generalized place invariants in 38 ms returned sat
[2026-05-23 07:27:19] [INFO ] [Real]Absence check using state equation in 343 ms returned sat
[2026-05-23 07:27:20] [INFO ] Computed and/alt/rep : 300/1100/300 causal constraints (skipped 100 transitions) in 56 ms.
[2026-05-23 07:27:20] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-23 07:27:20] [INFO ] [Nat]Absence check using 18 positive place invariants in 16 ms returned sat
[2026-05-23 07:27:20] [INFO ] [Nat]Absence check using 18 positive and 102 generalized place invariants in 59 ms returned sat
[2026-05-23 07:27:20] [INFO ] [Nat]Absence check using state equation in 422 ms returned sat
[2026-05-23 07:27:21] [INFO ] Computed and/alt/rep : 300/1100/300 causal constraints (skipped 100 transitions) in 53 ms.
[2026-05-23 07:27:23] [INFO ] Added : 270 causal constraints over 54 iterations in 2663 ms. Result :sat
Minimization took 323 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[32] Max Struct:[90]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[90] Max Struct:[90]
Support contains 100 out of 520 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 520/520 places, 500/500 transitions.
Performed 100 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 100 Pre rules applied. Total rules applied 0 place count 520 transition count 400
Deduced a syphon composed of 100 places in 1 ms
Reduce places removed 100 places and 0 transitions.
Iterating global reduction 0 with 200 rules applied. Total rules applied 200 place count 420 transition count 400
Applied a total of 200 rules in 55 ms. Remains 420 /520 variables (removed 100) and now considering 400/500 (removed 100) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 420/520 places, 400/500 transitions.
// Phase 1: matrix 400 rows 420 cols
[2026-05-23 07:27:26] [INFO ] Computed 120 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[90] Max Struct:[90]
FORMULA DatabaseWithMutex-COL-10-UpperBounds-05 90 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DatabaseWithMutex-COL-10-UpperBounds-04 90 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (2 resets) in 5893 ms. (169 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 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 )
[2026-05-23 07:27:32] [INFO ] Flatten gal took : 147 ms
[2026-05-23 07:27:32] [INFO ] Flatten gal took : 88 ms
[2026-05-23 07:27:32] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10155229473751906128.gal : 53 ms
[2026-05-23 07:27:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9350106396168160865.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/ReachabilityCardinality10155229473751906128.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9350106396168160865.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 69926 ms.

BK_STOP 1779521252906

--------------------
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="DatabaseWithMutex-COL-10"
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 DatabaseWithMutex-COL-10, 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 r095-smll-177946996300003"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DatabaseWithMutex-COL-10.tgz
mv DatabaseWithMutex-COL-10 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 ;