fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r344-smll-178021500800037
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for ErlangenMainframeV1-PT-bP02C02

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
233.396 3938.00 8092.00 63.10 T 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.r344-smll-178021500800037.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 ErlangenMainframeV1-PT-bP02C02, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r344-smll-178021500800037
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 540K
-rw-r--r-- 1 mcc users 7.6K May 27 08:42 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K May 27 08:42 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.8K May 27 08:41 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K May 27 08:41 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.4K May 27 10:31 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K May 27 10:31 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 27 10:31 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 27 10:31 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 12K May 27 08:42 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K May 27 08:42 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.6K May 27 08:42 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K May 27 08:42 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 27 10:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 27 10:31 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 8 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 64K May 26 18:17 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1780301030204

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=ErlangenMainframeV1-PT-bP02C02
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-06-01 08:03:52] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-06-01 08:03:52] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-01 08:03:52] [INFO ] Load time of PNML (sax parser for PT used): 119 ms
[2026-06-01 08:03:52] [INFO ] Transformed 193 places.
[2026-06-01 08:03:52] [INFO ] Transformed 255 transitions.
[2026-06-01 08:03:52] [INFO ] Found NUPN structural information;
[2026-06-01 08:03:52] [INFO ] Parsed PT model containing 193 places and 255 transitions and 805 arcs in 272 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 193/193 places, 255/255 transitions.
Graph (trivial) has 186 edges and 193 vertex of which 12 / 193 are part of one of the 5 SCC in 11 ms
Free SCC test removed 7 places
Ensure Unique test removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 83 transitions
Trivial Post-agglo rules discarded 83 transitions
Performed 83 trivial Post agglomeration. Transition count delta: 83
Iterating post reduction 0 with 83 rules applied. Total rules applied 84 place count 186 transition count 164
Reduce places removed 83 places and 0 transitions.
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 1 with 95 rules applied. Total rules applied 179 place count 103 transition count 152
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 182 place count 100 transition count 152
Performed 4 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 4 Pre rules applied. Total rules applied 182 place count 100 transition count 148
Deduced a syphon composed of 4 places in 1 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 3 with 8 rules applied. Total rules applied 190 place count 96 transition count 148
Performed 46 Post agglomeration using F-continuation condition.Transition count delta: 46
Deduced a syphon composed of 46 places in 1 ms
Reduce places removed 46 places and 0 transitions.
Iterating global reduction 3 with 92 rules applied. Total rules applied 282 place count 50 transition count 102
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: -16
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 3 with 12 rules applied. Total rules applied 294 place count 44 transition count 118
Applied a total of 294 rules in 89 ms. Remains 44 /193 variables (removed 149) and now considering 118/255 (removed 137) transitions.
[2026-06-01 08:03:52] [INFO ] Flow matrix only has 101 transitions (discarded 17 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7823203729477431906.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13745837311586132477.kers'
[2026-06-01 08:03:52] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7823203729477431906.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13745837311586132477.kers]
Normalized transition count is 100 out of 101 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 100 rows 44 cols 517 entries
Finished phase 1 with 31 SingleSign rule and 3 generalized
[2026-06-01 08:03:52] [INFO ] Computed 10 invariants in 1 ms
Computed 10 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-13745837311586132477.kers
Total runtime 3 ms.
[2026-06-01 08:03:52] [INFO ] Implicit Places using invariants in 448 ms returned [24]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 502 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 43/193 places, 118/255 transitions.
Applied a total of 0 rules in 4 ms. Remains 43 /43 variables (removed 0) and now considering 118/118 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 621 ms. Remains : 43/193 places, 118/255 transitions.
Discarding 48 transitions out of 118. Remains 70
Initial state reduction rules removed 1 formulas.
[2026-06-01 08:03:53] [INFO ] Flatten gal took : 184 ms
[2026-06-01 08:03:53] [INFO ] Flatten gal took : 47 ms
[2026-06-01 08:03:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13976341590099840963.gal : 25 ms
[2026-06-01 08:03:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11562779071852424912.prop : 6 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/ReachabilityCardinality13976341590099840963.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11562779071852424912.prop' '--nowitness' '--gen-order' 'FOLLOW'

RANDOM walk for 40000 steps (1464 resets) in 2800 ms. (14 steps per ms) remains 3/69 properties
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 ...330
Loading property file /tmp/ReachabilityCardinality11562779071852424912.prop.
Reachability property qltransition_16 is true.
Reachability property qltransition_15 is true.
Reachability property qltransition_14 is true.
Reachability property qltransition_3 is true.
Reachability property qltransition_0 is true.
SDD proceeding with computation,64 properties remain. new max is 2
SDD size :1 after 5
Reachability property qltransition_23 is true.
Reachability property qltransition_21 is true.
Reachability property qltransition_5 is true.
SDD proceeding with computation,61 properties remain. new max is 2
SDD size :5 after 13
SDD proceeding with computation,61 properties remain. new max is 4
SDD size :13 after 25
SDD proceeding with computation,61 properties remain. new max is 8
SDD size :25 after 28
Reachability property qltransition_19 is true.
Reachability property qltransition_17 is true.
Reachability property qltransition_2 is true.
SDD proceeding with computation,58 properties remain. new max is 8
SDD size :28 after 154
SDD proceeding with computation,58 properties remain. new max is 16
SDD size :154 after 229
Reachability property qltransition_116 is true.
Reachability property qltransition_114 is true.
Reachability property qltransition_112 is true.
Reachability property qltransition_110 is true.
Reachability property qltransition_108 is true.
Reachability property qltransition_106 is true.
Reachability property qltransition_104 is true.
Reachability property qltransition_102 is true.
Reachability property qltransition_100 is true.
Reachability property qltransition_96 is true.
Reachability property qltransition_94 is true.
Reachability property qltransition_92 is true.
Reachability property qltransition_90 is true.
Reachability property qltransition_88 is true.
Reachability property qltransition_86 is true.
Reachability property qltransition_84 is true.
Reachability property qltransition_82 is true.
Reachability property qltransition_80 is true.
Reachability property qltransition_29 is true.
Reachability property qltransition_28 is true.
Reachability property qltransition_26 is true.
Reachability property qltransition_25 is true.
SDD proceeding with computation,36 properties remain. new max is 16
SDD size :229 after 1609
Reachability property qltransition_33 is true.
Reachability property qltransition_32 is true.
Reachability property qltransition_31 is true.
Reachability property qltransition_30 is true.
Reachability property qltransition_27 is true.
SDD proceeding with computation,31 properties remain. new max is 16
SDD size :1609 after 1961
Reachability property qltransition_76 is true.
Reachability property qltransition_72 is true.
Reachability property qltransition_68 is true.
Reachability property qltransition_64 is true.
Reachability property qltransition_61 is true.
Reachability property qltransition_60 is true.
Reachability property qltransition_58 is true.
Reachability property qltransition_57 is true.
BEST_FIRST walk for 40001 steps (8 resets) in 488 ms. (81 steps per ms) remains 0/3 properties
Reachability property qltransition_52 is true.
Reachability property qltransition_51 is true.
Reachability property qltransition_49 is true.
ITS runner timed out or was interrupted.
Reachability property qltransition_48 is true.
SDD proceeding with computation,19 properties remain. new max is 16
SDD size :1961 after 58901
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,108001,0.125211,5540,2,360,59,4646,25,0,316,2233,0
Total reachable state count : 108001

Verifying 69 reachability properties.
Reachability property qltransition_0 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
qltransition\_0,200,0.127487,5672,2,230,59,4646,26,0,319,2233,0
Reachability property qltransition_2 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
qltransition\_2,250,0.128373,5672,2,234,59,4646,27,0,321,2233,0
Reachability property qltransition_3 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
qltransition\_3,50,0.129423,5672,2,127,59,4646,28,0,323,2233,0
Reachability property qltransition_5 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
qltransition\_5,1,0.129752,5672,2,44,59,4646,29,0,325,2233,0
Reachability property qltransition_14 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
qltransition\_14,7500,0.130134,5672,2,284,59,4646,30,0,327,2233,0
Reachability property qltransition_15 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
qltransition\_15,12500,0.130493,5672,2,293,59,4646,31,0,329,2233,0
Reachability property qltransition_16 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
qltransition\_16,6000,0.130825,5672,2,212,59,4646,32,0,331,2233,0
Reachability property qltransition_17 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
qltransition\_17,8,0.131611,5672,2,67,59,4646,33,0,342,2233,0
Reachability property qltransition_19 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
qltransition\_19,8,0.132395,5672,2,70,59,4646,34,0,347,2233,0
Reachability property qltransition_21 is true.

ITS tools runner thread asked to quit. Dying gracefully.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.ensureOpen(BufferedInputStream.java:206)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:411)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:405)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:350)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:393)
at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
at java.base/java.io.BufferedReader.implReadLine(BufferedReader.java:370)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:347)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:436)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:1583)
Able to resolve query QuasiLiveness after proving 70 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 2039 ms.

BK_STOP 1780301034142

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="ErlangenMainframeV1-PT-bP02C02"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 ErlangenMainframeV1-PT-bP02C02, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r344-smll-178021500800037"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ErlangenMainframeV1-PT-bP02C02.tgz
mv ErlangenMainframeV1-PT-bP02C02 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;