fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r162-smll-177961107800368
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for LamportFastMutEx-COL-5

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
4342.800 478734.00 502942.00 1541.80 5.3068E+0008 ? 1 32 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.r162-smll-177961107800368.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 LamportFastMutEx-COL-5, examination is StateSpace
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r162-smll-177961107800368
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 460K
-rw-r--r-- 1 mcc users 8.4K Mar 7 16:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 7 16:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 7 16:44 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K Mar 7 16:44 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 11:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 11:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 15 11:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 11:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.1K Mar 7 16:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 59K Mar 7 16:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Mar 7 16:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 100K Mar 7 16:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 11:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 11:12 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 2 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 41K Mar 3 18:30 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

no data necessary for post analysis


=== Now, execution of the tool begins

BK_START 1779846735130

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=StateSpace
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LamportFastMutEx-COL-5
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
StateSpace COL
Running Version 202604301425
[2026-05-27 01:52:17] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StateSpace, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-27 01:52:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-27 01:52:18] [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.
[2026-05-27 01:52:18] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-27 01:52:19] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1323 ms
[2026-05-27 01:52:19] [INFO ] Imported 18 HL places and 17 HL transitions for a total of 174 PT places and 396.0 transition bindings in 37 ms.
[2026-05-27 01:52:19] [INFO ] Unfolded HLPN to a Petri net with 174 places and 318 transitions 1380 arcs in 59 ms.
[2026-05-27 01:52:19] [INFO ] Unfolded 0 HLPN properties in 1 ms.
Deduced a syphon composed of 37 places in 3 ms
Reduce places removed 37 places and 58 transitions.
Starting structural reductions in STATESPACE mode, iteration 0 : 137/137 places, 260/260 transitions.
[2026-05-27 01:52:19] [INFO ] Redundant transitions in 26 ms returned []
Running 255 sub problems to find dead transitions.
[2026-05-27 01:52:19] [INFO ] Flow matrix only has 200 transitions (discarded 60 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3039421602570673733.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8856092214845540953.kers'
[2026-05-27 01:52:20] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3039421602570673733.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8856092214845540953.kers]
Culling duplicate invariants (modulo rational): removing 5 columns.
Culled 5 columns in 0 ms.
// Phase 1: matrix 200 rows 132 cols 620 entries
Finished phase 1 with 100 SingleSign rule and 0 generalized
[2026-05-27 01:52:20] [INFO ] Computed 37 invariants in 2 ms
Computed 37 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-8856092214845540953.kers
Total runtime 3 ms.
[2026-05-27 01:52:20] [INFO ] State equation strengthened by 55 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/137 variables, 37/37 constraints. Problems are: Problem set: 0 solved, 255 unsolved
Problem TDEAD5 is UNSAT
Problem TDEAD6 is UNSAT
Problem TDEAD7 is UNSAT
Problem TDEAD8 is UNSAT
Problem TDEAD9 is UNSAT
Problem TDEAD40 is UNSAT
Problem TDEAD46 is UNSAT
Problem TDEAD52 is UNSAT
Problem TDEAD58 is UNSAT
Problem TDEAD64 is UNSAT
Problem TDEAD65 is UNSAT
Problem TDEAD66 is UNSAT
Problem TDEAD67 is UNSAT
Problem TDEAD68 is UNSAT
Problem TDEAD69 is UNSAT
Problem TDEAD5 is UNSAT
Problem TDEAD6 is UNSAT
Problem TDEAD7 is UNSAT
Problem TDEAD8 is UNSAT
Problem TDEAD9 is UNSAT
Problem TDEAD40 is UNSAT
Problem TDEAD46 is UNSAT
Problem TDEAD52 is UNSAT
Problem TDEAD58 is UNSAT
Problem TDEAD64 is UNSAT
Problem TDEAD65 is UNSAT
Problem TDEAD66 is UNSAT
Problem TDEAD67 is UNSAT
Problem TDEAD68 is UNSAT
Problem TDEAD69 is UNSAT
Problem TDEAD86 is UNSAT
Problem TDEAD93 is UNSAT
Problem TDEAD100 is UNSAT
Problem TDEAD107 is UNSAT
Problem TDEAD114 is UNSAT
Problem TDEAD135 is UNSAT
Problem TDEAD140 is UNSAT
Problem TDEAD141 is UNSAT
Problem TDEAD142 is UNSAT
Problem TDEAD143 is UNSAT
Problem TDEAD144 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/137 variables, 20/57 constraints. Problems are: Problem set: 26 solved, 229 unsolved
Problem TDEAD115 is UNSAT
Problem TDEAD120 is UNSAT
Problem TDEAD125 is UNSAT
Problem TDEAD130 is UNSAT
Problem TDEAD115 is UNSAT
Problem TDEAD120 is UNSAT
Problem TDEAD125 is UNSAT
Problem TDEAD130 is UNSAT
At refinement iteration 2 (INCLUDED_ONLY) 0/137 variables, 20/77 constraints. Problems are: Problem set: 30 solved, 225 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/137 variables, 14/91 constraints. Problems are: Problem set: 30 solved, 225 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/137 variables, 4/95 constraints. Problems are: Problem set: 30 solved, 225 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/137 variables, 1/96 constraints. Problems are: Problem set: 30 solved, 225 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/137 variables, 2/98 constraints. Problems are: Problem set: 30 solved, 225 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/137 variables, 5/103 constraints. Problems are: Problem set: 30 solved, 225 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/137 variables, 1/104 constraints. Problems are: Problem set: 30 solved, 225 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 9 (INCLUDED_ONLY) 0/137 variables, 0/104 constraints. Problems are: Problem set: 30 solved, 225 unsolved
SMT process timed out in 30401ms, After SMT, problems are : Problem set: 30 solved, 225 unsolved
Search for dead transitions found 30 dead transitions in 30440ms
Found 30 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 30 transitions
Dead transitions reduction (with SMT) removed 30 transitions
Starting structural reductions in STATESPACE mode, iteration 1 : 137/137 places, 230/260 transitions.
[2026-05-27 01:52:50] [INFO ] Redundant transitions in 6 ms returned []
Finished structural reductions in STATESPACE mode , in 2 iterations and 30880 ms. Remains : 137/137 places, 230/260 transitions.
Final net has 137 places and 230 transitions.
[2026-05-27 01:52:50] [INFO ] Flatten gal took : 109 ms
[2026-05-27 01:52:50] [INFO ] Applying decomposition
[2026-05-27 01:52:50] [INFO ] Flatten gal took : 52 ms
Converted graph to binary with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/convert-linux64' '-i' '/tmp/graph6116802768019568116.txt' '-o' '/tmp/graph6116802768019568116.bin' '-w' '/tmp/graph6116802768019568116.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph6116802768019568116.bin' '-l' '-1' '-v' '-w' '/tmp/graph6116802768019568116.weights' '-q' '0' '-e' '0.001'
[2026-05-27 01:52:51] [INFO ] Decomposing Gal with order
[2026-05-27 01:52:51] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-27 01:52:51] [INFO ] Removed a total of 268 redundant transitions.
[2026-05-27 01:52:51] [INFO ] Flatten gal took : 141 ms
[2026-05-27 01:52:51] [INFO ] Fuse similar labels procedure discarded/fused a total of 77 labels/synchronizations in 20 ms.
[2026-05-27 01:52:51] [INFO ] Time to serialize gal into /tmp/StateSpace9284941282474747831.gal : 15 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/StateSpace9284941282474747831.gal' '-t' 'CGAL' '--stats'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...219
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,5.30682e+08,440.847,3983164,17353,157,2.04018e+06,1318,568,4.46198e+07,99,13580,0
Total reachable state count : 530682432

Max variable value : 1
STATE_SPACE MAX_TOKEN_IN_PLACE 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Maximum sum along a path : 32
STATE_SPACE MAX_TOKEN_PER_MARKING 32 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Exact state count : 530682432
STATE_SPACE STATES 530682432 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Total runtime 476071 ms.

BK_STOP 1779847213864

--------------------
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
+ [[ StateSpace = StateSpace ]]
+ [[ -f modelMain.xml ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StateSpace -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 StateSpace -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="LamportFastMutEx-COL-5"
export BK_EXAMINATION="StateSpace"
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 LamportFastMutEx-COL-5, examination is StateSpace"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r162-smll-177961107800368"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-COL-5.tgz
mv LamportFastMutEx-COL-5 execution
cd execution
if [ "StateSpace" = "ReachabilityDeadlock" ] || [ "StateSpace" = "UpperBounds" ] || [ "StateSpace" = "QuasiLiveness" ] || [ "StateSpace" = "StableMarking" ] || [ "StateSpace" = "Liveness" ] || [ "StateSpace" = "OneSafe" ] || [ "StateSpace" = "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 [ "StateSpace" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StateSpace" != "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 "StateSpace.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 '' StateSpace.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StateSpace" = "ReachabilityDeadlock" ] || [ "StateSpace" = "QuasiLiveness" ] || [ "StateSpace" = "StableMarking" ] || [ "StateSpace" = "Liveness" ] || [ "StateSpace" = "OneSafe" ] ; then
echo "FORMULA_NAME StateSpace"
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 ;