fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r210-smll-177969941900021
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for Philosophers-COL-000020

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
263.728 5174.00 10240.00 129.90 20 20 20 20 20 20 20 20 20 10 20 20 20 20 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.r210-smll-177969941900021.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)
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is Philosophers-COL-000020, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r210-smll-177969941900021
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 468K
-rw-r--r-- 1 mcc users 8.4K Mar 5 13:09 CTLCardinality.txt
-rw-r--r-- 1 mcc users 89K Mar 5 13:09 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K Mar 5 13:09 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 5 13:09 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K Mar 16 08:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 16 08:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 16 08:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 16 08:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.9K Mar 5 13:10 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 98K Mar 5 13:10 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 13:09 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 94K Mar 5 13:09 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 16 08:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 16 08:36 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 11K 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-000020-UpperBounds-00
FORMULA_NAME Philosophers-COL-000020-UpperBounds-01
FORMULA_NAME Philosophers-COL-000020-UpperBounds-02
FORMULA_NAME Philosophers-COL-000020-UpperBounds-03
FORMULA_NAME Philosophers-COL-000020-UpperBounds-04
FORMULA_NAME Philosophers-COL-000020-UpperBounds-05
FORMULA_NAME Philosophers-COL-000020-UpperBounds-06
FORMULA_NAME Philosophers-COL-000020-UpperBounds-07
FORMULA_NAME Philosophers-COL-000020-UpperBounds-08
FORMULA_NAME Philosophers-COL-000020-UpperBounds-09
FORMULA_NAME Philosophers-COL-000020-UpperBounds-10
FORMULA_NAME Philosophers-COL-000020-UpperBounds-11
FORMULA_NAME Philosophers-COL-000020-UpperBounds-12
FORMULA_NAME Philosophers-COL-000020-UpperBounds-13
FORMULA_NAME Philosophers-COL-000020-UpperBounds-14
FORMULA_NAME Philosophers-COL-000020-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779782473236

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Philosophers-COL-000020
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
UpperBounds COL
Running Version 202604301425
[2026-05-26 08:01:15] [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 08:01:15] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 08:01:15] [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 08:01:15] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-26 08:01:16] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1079 ms
[2026-05-26 08:01:16] [INFO ] Imported 5 HL places and 5 HL transitions for a total of 100 PT places and 100.0 transition bindings in 41 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 5
[2026-05-26 08:01:16] [INFO ] Built PT skeleton of HLPN with 5 places and 5 transitions 15 arcs in 10 ms.
[2026-05-26 08:01:16] [INFO ] Skeletonized 5 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-134411898920405590.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7506111538956925578.kers'
[2026-05-26 08:01:16] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-134411898920405590.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7506111538956925578.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 5 rows 5 cols 15 entries
Finished phase 1 with 3 SingleSign rule and 0 generalized
[2026-05-26 08:01:16] [INFO ] Computed 2 invariants in 0 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-7506111538956925578.kers
Total runtime 2 ms.
Current structural bounds on expressions (after Invariants on skeleton) : Max Seen:[20, 0, 0, 20, 0] Max Struct:[20, 20, 20, 20, 10]
FORMULA Philosophers-COL-000020-UpperBounds-06 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-11 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-05 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-02 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-07 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-08 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-10 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
FORMULA Philosophers-COL-000020-UpperBounds-00 20 TECHNIQUES TOPOLOGICAL CPN_APPROX INITIAL_STATE
[2026-05-26 08:01:16] [INFO ] Invariant cache hit.
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using 2 positive place invariants in 6 ms returned sat
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2026-05-26 08:01:17] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 6 ms.
[2026-05-26 08:01:17] [INFO ] Added : 0 causal constraints over 0 iterations in 24 ms. Result :sat
Minimization took 22 ms.
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2026-05-26 08:01:17] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-26 08:01:17] [INFO ] Added : 0 causal constraints over 0 iterations in 10 ms. Result :sat
Minimization took 6 ms.
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using 2 positive place invariants in 2 ms returned sat
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using state equation in 9 ms returned sat
[2026-05-26 08:01:17] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 3 ms.
[2026-05-26 08:01:17] [INFO ] Added : 1 causal constraints over 1 iterations in 12 ms. Result :sat
Minimization took 4 ms.
[2026-05-26 08:01:17] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 08:01:17] [INFO ] [Nat]Absence check using 2 positive place invariants in 3 ms returned sat
[2026-05-26 08:01:17] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2026-05-26 08:01:17] [INFO ] Computed and/alt/rep : 3/4/3 causal constraints (skipped 0 transitions) in 9 ms.
[2026-05-26 08:01:17] [INFO ] Added : 1 causal constraints over 1 iterations in 31 ms. Result :sat
Minimization took 5 ms.
Current structural bounds on expressions (after SMT on skeleton) : Max Seen:[0, 0, 0] Max Struct:[20, 20, 10]
Arc [1:1*[(MOD (ADD (MOD (MINUS $x 1) 20) 20) 20)]] contains successor/predecessor on variables of sort Philo
[2026-05-26 08:01:17] [INFO ] Unfolded HLPN to a Petri net with 100 places and 100 transitions 320 arcs in 39 ms.
[2026-05-26 08:01:17] [INFO ] Unfolded 3 HLPN properties in 0 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:[20, 20, 10]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0] Max Struct:[20, 20, 10]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3493052022710985479.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8359413449938669439.kers'
[2026-05-26 08:01:17] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3493052022710985479.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8359413449938669439.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 100 rows 100 cols 320 entries
Finished phase 1 with 60 SingleSign rule and 0 generalized
[2026-05-26 08:01:17] [INFO ] Computed 40 invariants in 0 ms
Computed 40 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-8359413449938669439.kers
Total runtime 3 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0] Max Struct:[20, 20, 10]
RANDOM walk for 10000 steps (12 resets) in 106 ms. (93 steps per ms)
FORMULA Philosophers-COL-000020-UpperBounds-03 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Philosophers-COL-000020-UpperBounds-04 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Philosophers-COL-000020-UpperBounds-12 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Philosophers-COL-000020-UpperBounds-13 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Philosophers-COL-000020-UpperBounds-01 20 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 10001 steps (22 resets) in 32 ms. (303 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[7] Max Struct:[10]
[2026-05-26 08:01:17] [INFO ] Invariant cache hit.
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using 40 positive place invariants in 33 ms returned sat
[2026-05-26 08:01:17] [INFO ] [Real]Absence check using state equation in 129 ms returned sat
[2026-05-26 08:01:17] [INFO ] Computed and/alt/rep : 60/80/60 causal constraints (skipped 0 transitions) in 18 ms.
[2026-05-26 08:01:18] [INFO ] Added : 8 causal constraints over 2 iterations in 64 ms. Result :sat
Minimization took 16 ms.
[2026-05-26 08:01:18] [INFO ] Solution in real domain found non-integer solution.
[2026-05-26 08:01:18] [INFO ] [Nat]Absence check using 40 positive place invariants in 31 ms returned sat
[2026-05-26 08:01:18] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2026-05-26 08:01:18] [INFO ] Computed and/alt/rep : 60/80/60 causal constraints (skipped 0 transitions) in 13 ms.
[2026-05-26 08:01:18] [INFO ] Added : 8 causal constraints over 2 iterations in 52 ms. Result :sat
Minimization took 17 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[7] Max Struct:[10]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[10] Max Struct:[10]
FORMULA Philosophers-COL-000020-UpperBounds-14 10 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
FORMULA Philosophers-COL-000020-UpperBounds-15 10 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
FORMULA Philosophers-COL-000020-UpperBounds-09 10 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
All properties solved without resorting to model-checking.
Total runtime 3099 ms.

BK_STOP 1779782478410

--------------------
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="Philosophers-COL-000020"
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 Philosophers-COL-000020, 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 r210-smll-177969941900021"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-COL-000020.tgz
mv Philosophers-COL-000020 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 ;