fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r354-tall-178024402800094
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for LastZero-PT-N10

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
322.640 2280.00 6333.00 30.30 TTFTFTTTFTTFTFFT 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-178024402800094.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-PT-N10, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800094
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 6.1K May 27 10:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 56K May 27 10:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K May 27 10:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K May 27 10:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 28K May 27 10:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 115K May 27 10:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 27 10:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 27 10:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 12K May 27 10:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K May 27 10:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.5K May 27 10:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K May 27 10:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 8.9K May 27 10:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 24K May 27 10:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 4 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 486K Jun 10 11:58 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-PT-N10-ReachabilityCardinality-2024-00
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-01
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-02
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-03
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-04
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-05
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-06
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-07
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-08
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-09
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-10
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-11
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-12
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-13
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-14
FORMULA_NAME LastZero-PT-N10-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1781099687112

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-PT-N10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-06-10 13:54:48] [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 13:54:48] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-10 13:54:48] [INFO ] Load time of PNML (sax parser for PT used): 106 ms
[2026-06-10 13:54:48] [INFO ] Transformed 264 places.
[2026-06-10 13:54:48] [INFO ] Transformed 1531 transitions.
[2026-06-10 13:54:48] [INFO ] Parsed PT model containing 264 places and 1531 transitions and 4793 arcs in 205 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 14 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 122 places in 8 ms
Reduce places removed 122 places and 981 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (1288 resets) in 1232 ms. (32 steps per ms) remains 4/9 properties
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40002 steps (225 resets) in 190 ms. (209 steps per ms) remains 4/4 properties
[2026-06-10 13:54:49] [INFO ] Flatten gal took : 149 ms
BEST_FIRST walk for 40003 steps (227 resets) in 152 ms. (261 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40003 steps (228 resets) in 132 ms. (300 steps per ms) remains 4/4 properties
[2026-06-10 13:54:49] [INFO ] Flatten gal took : 72 ms
BEST_FIRST walk for 40002 steps (240 resets) in 195 ms. (204 steps per ms) remains 4/4 properties
[2026-06-10 13:54:49] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1262586622695703963.gal : 40 ms
[2026-06-10 13:54:49] [INFO ] Flow matrix only has 505 transitions (discarded 45 similar events)
[2026-06-10 13:54:49] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7035363673900552217.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/ReachabilityCardinality1262586622695703963.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7035363673900552217.prop' '--nowitness' '--gen-order' 'FOLLOW'
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15098682009075504200.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-4684298838032952012.kers'
[2026-06-10 13:54:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15098682009075504200.kers, --Pflows, --basisKERS=/tmp/petrispot-output-4684298838032952012.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 505 rows 140 cols 1339 entries
Finished phase 1 with 130 SingleSign rule and 0 generalized
[2026-06-10 13:54:49] [INFO ] Computed 11 invariants in 1 ms
Computed 11 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-4684298838032952012.kers
Total runtime 2 ms.

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
[2026-06-10 13:54:49] [INFO ] State equation strengthened by 110 read => feed constraints.
Loading property file /tmp/ReachabilityCardinality7035363673900552217.prop.
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :6 after 18
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :18 after 26
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :26 after 305
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :305 after 2131
SDD proceeding with computation,4 properties remain. new max is 128
SDD size :2131 after 69446
Reachability property LastZero-PT-N10-ReachabilityCardinality-2024-09 is true.
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :69446 after 579243
SDD proceeding with computation,3 properties remain. new max is 256
SDD size :579243 after 579714
SDD proceeding with computation,3 properties remain. new max is 512
SDD size :579714 after 587532
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,738761,0.12221,8264,2,1936,15,5265,9,0,1104,2320,0
Total reachable state count : 738761

Verifying 4 reachability properties.
Invariant property LastZero-PT-N10-ReachabilityCardinality-2024-01 is true.
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

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-PT-N10-ReachabilityCardinality-2024-01,0,0.122923,8264,1,0,15,5265,9,0,1105,2320,0
Invariant property LastZero-PT-N10-ReachabilityCardinality-2024-07 is true.
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

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-PT-N10-ReachabilityCardinality-2024-07,0,0.123183,8264,1,0,15,5265,9,0,1105,2320,0
Reachability property LastZero-PT-N10-ReachabilityCardinality-2024-09 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-PT-N10-ReachabilityCardinality-2024-09,25,0.123357,8264,2,239,15,5265,10,0,1106,2320,0
Invariant property LastZero-PT-N10-ReachabilityCardinality-2024-15 is true.
FORMULA LastZero-PT-N10-ReachabilityCardinality-2024-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

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-PT-N10-ReachabilityCardinality-2024-15,0,0.124542,8264,1,0,15,5265,10,0,1114,2320,0
After SMT solving in domain Real declared 10/646 variables, and 0 constraints, problems are : Problem set: 4 solved, 0 unsolved in 83 ms.
Refiners :[Positive P Invariants (semi-flows): 0/11 constraints, State Equation: 0/141 constraints, ReadFeed: 0/110 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 173ms problems are : Problem set: 4 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
All properties solved without resorting to model-checking.
Total runtime 1130 ms.

BK_STOP 1781099689392

--------------------
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-PT-N10"
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-PT-N10, 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-178024402800094"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N10.tgz
mv LastZero-PT-N10 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 ;