fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r354-tall-178024402800062
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for LastZero-COL-N22

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
412.432 3572.00 9237.00 22.70 TFTTFFTFFFFTTFTF 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.r354-tall-178024402800062.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 LastZero-COL-N22, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800062
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 452K
-rw-r--r-- 1 mcc users 5.4K May 27 10:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 48K May 27 10:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.7K May 27 10:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 76K May 27 10:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K May 27 10:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 27 10:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 27 10:55 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 27 10:55 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 8.6K May 27 10:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 80K May 27 10:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.6K May 27 10:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 83K May 27 10:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 27 10:55 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 27 10:55 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 26 18:17 equiv_pt
-rw-r--r-- 1 mcc users 4 May 26 18:17 instance
-rw-r--r-- 1 mcc users 5 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 42K Jun 10 17:28 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-00
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-01
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-02
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-03
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-04
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-05
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-06
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-07
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-08
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-09
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-10
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-11
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-12
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-13
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-14
FORMULA_NAME LastZero-COL-N22-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1781119542192

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-COL-N22
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
ReachabilityCardinality COL
Running Version 202604301425
[2026-06-10 19:25:43] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-06-10 19:25:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-10 19:25:43] [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.
[2026-06-10 19:25:43] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-06-10 19:25:43] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 511 ms
[2026-06-10 19:25:43] [INFO ] Imported 4 HL places and 3 HL transitions for a total of 1104 PT places and 13225.0 transition bindings in 17 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 20 ms.
Working with output stream class java.io.PrintStream
[2026-06-10 19:25:44] [INFO ] Built PT skeleton of HLPN with 4 places and 3 transitions 11 arcs in 4 ms.
[2026-06-10 19:25:44] [INFO ] Skeletonized 16 HLPN properties in 2 ms.
Remains 16 properties that can be checked using skeleton over-approximation.
Initial state reduction rules removed 9 formulas.
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Reduce places removed 2 places and 0 transitions.
[2026-06-10 19:25:44] [INFO ] Flatten gal took : 18 ms
[2026-06-10 19:25:44] [INFO ] Flatten gal took : 1 ms
[2026-06-10 19:25:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality404411868056600321.gal : 5 ms
RANDOM walk for 40040 steps (848 resets) in 279 ms. (143 steps per ms) remains 3/6 properties
[2026-06-10 19:25:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12520031077648384221.prop : 1 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/ReachabilityCardinality404411868056600321.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12520031077648384221.prop' '--nowitness' '--gen-order' 'FOLLOW'

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 ...328
BEST_FIRST walk for 40004 steps (452 resets) in 260 ms. (153 steps per ms) remains 3/3 properties
Loading property file /tmp/ReachabilityCardinality12520031077648384221.prop.
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :6 after 9
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :25 after 30
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :90 after 100
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :246 after 251
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,276,0.016842,4104,2,25,13,964,8,0,33,1418,0
Total reachable state count : 276

Verifying 3 reachability properties.
Reachability property LastZero-COL-N22-ReachabilityCardinality-2024-01 does not hold.
No reachable states exhibit your property : LastZero-COL-N22-ReachabilityCardinality-2024-01

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
LastZero-COL-N22-ReachabilityCardinality-2024-01,0,0.017488,4208,1,0,13,964,8,0,40,1418,0
Reachability property LastZero-COL-N22-ReachabilityCardinality-2024-05 does not hold.
No reachable states exhibit your property : LastZero-COL-N22-ReachabilityCardinality-2024-05

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
LastZero-COL-N22-ReachabilityCardinality-2024-05,0,0.017921,4372,1,0,13,964,8,0,40,1418,0
Invariant property LastZero-COL-N22-ReachabilityCardinality-2024-11 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
LastZero-COL-N22-ReachabilityCardinality-2024-11,0,0.018204,4372,1,0,13,964,8,0,41,1418,0
BEST_FIRST walk for 40004 steps (456 resets) in 282 ms. (141 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40004 steps (452 resets) in 210 ms. (189 steps per ms) remains 3/3 properties
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2026-06-10 19:25:44] [INFO ] Flatten gal took : 1 ms
[2026-06-10 19:25:44] [INFO ] Flatten gal took : 0 ms
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2026-06-10 19:25:44] [INFO ] Flatten gal took : 1 ms
[2026-06-10 19:25:44] [INFO ] Flatten gal took : 0 ms
[2026-06-10 19:25:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8681827390967037220.gal : 0 ms
[2026-06-10 19:25:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18178443180532047920.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality8681827390967037220.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18178443180532047920.prop' '--nowitness' '--gen-order' 'FOLLOW'
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )

its-reach command run as :

ITS runner timed out or was interrupted.
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality18178443180532047920.prop.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 fixpoint passes
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,9,0.002083,3848,2,7,6,38,5,0,11,33,0
Total reachable state count : 9

FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-01 FALSE TECHNIQUES CPN_APPROX
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-05 FALSE TECHNIQUES CPN_APPROX
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-11 TRUE TECHNIQUES CPN_APPROX
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-15 FALSE TECHNIQUES CPN_APPROX
Domain [ID(23), ID(23)] of place array breaks symmetries in sort ID
[2026-06-10 19:25:44] [INFO ] Unfolded HLPN to a Petri net with 1104 places and 13135 transitions 40373 arcs in 142 ms.
[2026-06-10 19:25:44] [INFO ] Unfolded 7 HLPN properties in 4 ms.
Deduced a syphon composed of 530 places in 54 ms
Reduce places removed 530 places and 8581 transitions.
Reduce places removed 1 places and 0 transitions.
RANDOM walk for 40000 steps (596 resets) in 1947 ms. (20 steps per ms) remains 1/3 properties
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 2024 steps (0 resets) in 61 ms. (32 steps per ms) remains 0/1 properties
FORMULA LastZero-COL-N22-ReachabilityCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2026-06-10 19:25:45] [INFO ] Flatten gal took : 555 ms
[2026-06-10 19:25:45] [INFO ] Flatten gal took : 192 ms
[2026-06-10 19:25:45] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9723036317329081125.gal : 61 ms
[2026-06-10 19:25:45] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16165277200239955858.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9723036317329081125.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16165277200239955858.prop' '--nowitness' '--gen-order' 'FOLLOW'

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 ...329
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 2397 ms.

BK_STOP 1781119545764

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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 ReachabilityCardinality -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="LastZero-COL-N22"
export BK_EXAMINATION="ReachabilityCardinality"
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 LastZero-COL-N22, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r354-tall-178024402800062"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-COL-N22.tgz
mv LastZero-COL-N22 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;