fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r162-smll-177961107800344
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for LamportFastMutEx-COL-2

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
374.844 11957.00 21413.00 176.40 380 ? 1 8 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-177961107800344.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-2, examination is StateSpace
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r162-smll-177961107800344
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 500K
-rw-r--r-- 1 mcc users 7.8K Mar 7 16:43 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 7 16:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.4K Mar 7 16:43 CTLFireability.txt
-rw-r--r-- 1 mcc users 75K Mar 7 16:43 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 15 11:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 15 11:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 15 11:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 11:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 7 16:43 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K Mar 7 16:43 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.3K Mar 7 16:43 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 70K Mar 7 16:43 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 11:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 11:11 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 38K 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 1779840414278

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-2
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
StateSpace COL
Running Version 202604301425
[2026-05-27 00:06:56] [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 00:06:56] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-27 00:06:56] [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 00:06:56] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-27 00:06:57] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1320 ms
[2026-05-27 00:06:57] [INFO ] Imported 18 HL places and 17 HL transitions for a total of 69 PT places and 117.0 transition bindings in 41 ms.
[2026-05-27 00:06:57] [INFO ] Unfolded HLPN to a Petri net with 69 places and 96 transitions 402 arcs in 46 ms.
[2026-05-27 00:06:57] [INFO ] Unfolded 0 HLPN properties in 0 ms.
Deduced a syphon composed of 25 places in 1 ms
Reduce places removed 25 places and 34 transitions.
Starting structural reductions in STATESPACE mode, iteration 0 : 44/44 places, 62/62 transitions.
[2026-05-27 00:06:57] [INFO ] Redundant transitions in 2 ms returned []
Running 60 sub problems to find dead transitions.
[2026-05-27 00:06:58] [INFO ] Flow matrix only has 56 transitions (discarded 6 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-460474704185933757.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8424995435875660184.kers'
[2026-05-27 00:06:58] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-460474704185933757.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8424995435875660184.kers]
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 56 rows 42 cols 152 entries
Finished phase 1 with 34 SingleSign rule and 0 generalized
[2026-05-27 00:06:58] [INFO ] Computed 10 invariants in 0 ms
Computed 10 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-8424995435875660184.kers
Total runtime 2 ms.
[2026-05-27 00:06:58] [INFO ] State equation strengthened by 16 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 10/10 constraints. Problems are: Problem set: 0 solved, 60 unsolved
Problem TDEAD3 is UNSAT
Problem TDEAD10 is UNSAT
Problem TDEAD13 is UNSAT
Problem TDEAD14 is UNSAT
Problem TDEAD15 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD27 is UNSAT
Problem TDEAD28 is UNSAT
Problem TDEAD29 is UNSAT
Problem TDEAD32 is UNSAT
Problem TDEAD33 is UNSAT
Problem TDEAD2 is UNSAT
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 18/28 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/44 variables, 2/30 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/44 variables, 0/30 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 4 (OVERLAPS) 56/100 variables, 44/74 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/100 variables, 16/90 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/100 variables, 1/91 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/100 variables, 0/91 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 8 (OVERLAPS) 0/100 variables, 0/91 constraints. Problems are: Problem set: 12 solved, 48 unsolved
No progress, stopping.
After SMT solving in domain Real declared 100/100 variables, and 91 constraints, problems are : Problem set: 12 solved, 48 unsolved in 4235 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 44/44 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 60/60 constraints, Known Traps: 21/21 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 12 solved, 48 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 4/4 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 12/16 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/42 variables, 0/16 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 3 (OVERLAPS) 2/44 variables, 6/22 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/44 variables, 9/31 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/44 variables, 0/31 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 6 (OVERLAPS) 56/100 variables, 44/75 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/100 variables, 16/91 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/100 variables, 48/139 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/100 variables, 1/140 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/100 variables, 0/140 constraints. Problems are: Problem set: 12 solved, 48 unsolved
At refinement iteration 11 (OVERLAPS) 0/100 variables, 0/140 constraints. Problems are: Problem set: 12 solved, 48 unsolved
No progress, stopping.
After SMT solving in domain Int declared 100/100 variables, and 140 constraints, problems are : Problem set: 12 solved, 48 unsolved in 3143 ms.
Refiners :[Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 44/44 constraints, ReadFeed: 16/16 constraints, PredecessorRefiner: 48/60 constraints, Known Traps: 21/21 constraints, Known Traps Along Path: 1/1 constraints]
After SMT, in 7552ms problems are : Problem set: 12 solved, 48 unsolved
Search for dead transitions found 12 dead transitions in 7584ms
Found 12 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 12 transitions
Dead transitions reduction (with SMT) removed 12 transitions
Starting structural reductions in STATESPACE mode, iteration 1 : 44/44 places, 50/62 transitions.
[2026-05-27 00:07:05] [INFO ] Redundant transitions in 1 ms returned []
Finished structural reductions in STATESPACE mode , in 2 iterations and 7821 ms. Remains : 44/44 places, 50/62 transitions.
Final net has 44 places and 50 transitions.
[2026-05-27 00:07:05] [INFO ] Flatten gal took : 36 ms
[2026-05-27 00:07:05] [INFO ] Applying decomposition
[2026-05-27 00:07:05] [INFO ] Flatten gal took : 19 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/graph11425201114066553191.txt' '-o' '/tmp/graph11425201114066553191.bin' '-w' '/tmp/graph11425201114066553191.weights'
Built communities with : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202604301425/bin/louvain-linux64' '/tmp/graph11425201114066553191.bin' '-l' '-1' '-v' '-w' '/tmp/graph11425201114066553191.weights' '-q' '0' '-e' '0.001'
[2026-05-27 00:07:05] [INFO ] Decomposing Gal with order
[2026-05-27 00:07:05] [INFO ] Rewriting arrays to variables to allow decomposition.
[2026-05-27 00:07:05] [INFO ] Removed a total of 21 redundant transitions.
[2026-05-27 00:07:06] [INFO ] Flatten gal took : 88 ms
[2026-05-27 00:07:06] [INFO ] Fuse similar labels procedure discarded/fused a total of 12 labels/synchronizations in 12 ms.
[2026-05-27 00:07:06] [INFO ] Time to serialize gal into /tmp/StateSpace15641480480445552026.gal : 9 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/StateSpace15641480480445552026.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 ...220
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,380,0.059099,5188,234,103,1950,398,210,3128,71,1835,0
Total reachable state count : 380

Max variable value : 1
STATE_SPACE MAX_TOKEN_IN_PLACE 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Maximum sum along a path : 8
STATE_SPACE MAX_TOKEN_PER_MARKING 8 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Exact state count : 380
STATE_SPACE STATES 380 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Total runtime 10122 ms.

BK_STOP 1779840426235

--------------------
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-2"
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-2, 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-177961107800344"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-COL-2.tgz
mv LamportFastMutEx-COL-2 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 ;