fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r354-tall-178024402800127
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for LastZero-PT-N18

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
449.932 3479.00 9856.00 45.60 TFTTFFFTFFFFFFFT 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-178024402800127.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-N18, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800127
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.3M
-rw-r--r-- 1 mcc users 9.6K May 27 10:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 97K May 27 10:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K May 27 10:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K May 27 10:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 109K May 27 10:53 LTLCardinality.txt
-rw-r--r-- 1 mcc users 411K May 27 10:53 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 27 10:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 27 10:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 9.2K May 27 10:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 82K May 27 10:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K May 27 10:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 47K May 27 10:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 21K May 27 10:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 54K May 27 10:54 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 2.4M 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-N18-ReachabilityFireability-2024-00
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-01
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-02
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-03
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-04
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-05
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-06
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-07
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-08
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-09
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-10
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-11
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-12
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-13
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-14
FORMULA_NAME LastZero-PT-N18-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1781099891143

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-PT-N18
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-06-10 13:58:12] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-06-10 13:58:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-10 13:58:12] [INFO ] Load time of PNML (sax parser for PT used): 264 ms
[2026-06-10 13:58:12] [INFO ] Transformed 760 places.
[2026-06-10 13:58:12] [INFO ] Transformed 7507 transitions.
[2026-06-10 13:58:12] [INFO ] Parsed PT model containing 760 places and 7507 transitions and 23169 arcs in 391 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 362 places in 46 ms
Reduce places removed 362 places and 4885 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (724 resets) in 1369 ms. (29 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (80 resets) in 249 ms. (160 steps per ms) remains 5/6 properties
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (80 resets) in 239 ms. (166 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40002 steps (79 resets) in 211 ms. (188 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (77 resets) in 152 ms. (261 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (80 resets) in 166 ms. (239 steps per ms) remains 5/5 properties
[2026-06-10 13:58:13] [INFO ] Flow matrix only has 2469 transitions (discarded 153 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10952591517980233643.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14244637508231441325.kers'
[2026-06-10 13:58:13] [INFO ] Flatten gal took : 370 ms
[2026-06-10 13:58:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10952591517980233643.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14244637508231441325.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 2469 rows 396 cols 6875 entries
Finished phase 1 with 378 SingleSign rule and 0 generalized
[2026-06-10 13:58:13] [INFO ] Computed 19 invariants in 6 ms
Computed 19 P flows in 10 ms.
Exported basis to /tmp/petrispot-output-14244637508231441325.kers
Total runtime 12 ms.
[2026-06-10 13:58:13] [INFO ] State equation strengthened by 342 read => feed constraints.
[2026-06-10 13:58:13] [INFO ] Flatten gal took : 129 ms
[2026-06-10 13:58:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7486046534445862823.gal : 85 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/10 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 5 unsolved
[2026-06-10 13:58:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9790095194169861915.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/ReachabilityCardinality7486046534445862823.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9790095194169861915.prop' '--nowitness' '--gen-order' 'FOLLOW'
At refinement iteration 1 (OVERLAPS) 43/53 variables, 4/4 constraints. Problems are: Problem set: 0 solved, 5 unsolved

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
At refinement iteration 2 (INCLUDED_ONLY) 0/53 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 3 (OVERLAPS) 598/651 variables, 53/57 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/651 variables, 5/62 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Loading property file /tmp/ReachabilityCardinality9790095194169861915.prop.
At refinement iteration 5 (INCLUDED_ONLY) 0/651 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Problem LastZero-PT-N18-ReachabilityFireability-2024-03 is UNSAT
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-03 TRUE TECHNIQUES SMT_REFINEMENT
Problem LastZero-PT-N18-ReachabilityFireability-2024-07 is UNSAT
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-07 TRUE TECHNIQUES SMT_REFINEMENT
Problem LastZero-PT-N18-ReachabilityFireability-2024-12 is UNSAT
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-12 FALSE TECHNIQUES SMT_REFINEMENT
Problem LastZero-PT-N18-ReachabilityFireability-2024-13 is UNSAT
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-13 FALSE TECHNIQUES SMT_REFINEMENT
Problem LastZero-PT-N18-ReachabilityFireability-2024-14 is UNSAT
FORMULA LastZero-PT-N18-ReachabilityFireability-2024-14 FALSE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Real declared 772/2866 variables, and 105 constraints, problems are : Problem set: 5 solved, 0 unsolved in 644 ms.
Refiners :[Positive P Invariants (semi-flows): 4/19 constraints, State Equation: 96/397 constraints, ReadFeed: 5/342 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 822ms problems are : Problem set: 5 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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 2213 ms.

BK_STOP 1781099894622

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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 ReachabilityFireability -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-N18"
export BK_EXAMINATION="ReachabilityFireability"
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-N18, examination is ReachabilityFireability"
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-178024402800127"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N18.tgz
mv LastZero-PT-N18 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;