fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r354-tall-178024402800102
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for LastZero-PT-N12

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
302.344 3068.00 6698.00 25.30 TFTFFFTFFTFFFTTT 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-178024402800102.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-N12, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800102
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.5M
-rw-r--r-- 1 mcc users 6.0K May 27 10:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 54K May 27 10:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.3K May 27 10:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 71K May 27 10:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 65K May 27 10:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 249K May 27 10:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 27 10:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 27 10:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 11K May 27 10:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 103K May 27 10:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K May 27 10:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 75K May 27 10:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 4.9K May 27 10:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 13K 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 787K 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-N12-ReachabilityCardinality-2024-00
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-01
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-02
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-03
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-04
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-05
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-06
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-07
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-08
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-09
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-10
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-11
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-12
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-13
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-14
FORMULA_NAME LastZero-PT-N12-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1781099725729

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-N12
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-06-10 13:55:26] [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 13:55:26] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-10 13:55:27] [INFO ] Load time of PNML (sax parser for PT used): 128 ms
[2026-06-10 13:55:27] [INFO ] Transformed 364 places.
[2026-06-10 13:55:27] [INFO ] Transformed 2485 transitions.
[2026-06-10 13:55:27] [INFO ] Parsed PT model containing 364 places and 2485 transitions and 7743 arcs in 233 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 16 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 170 places in 14 ms
Reduce places removed 170 places and 1601 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (1080 resets) in 1341 ms. (29 steps per ms) remains 6/7 properties
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2026-06-10 13:55:27] [INFO ] Flatten gal took : 174 ms
BEST_FIRST walk for 40004 steps (164 resets) in 343 ms. (116 steps per ms) remains 6/6 properties
[2026-06-10 13:55:27] [INFO ] Flatten gal took : 117 ms
BEST_FIRST walk for 40003 steps (166 resets) in 261 ms. (152 steps per ms) remains 5/6 properties
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (165 resets) in 252 ms. (158 steps per ms) remains 5/5 properties
[2026-06-10 13:55:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6806840509437922144.gal : 72 ms
[2026-06-10 13:55:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality13387372878276177537.prop : 2 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/ReachabilityCardinality6806840509437922144.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality13387372878276177537.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40002 steps (165 resets) in 174 ms. (228 steps per ms) remains 5/5 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 ...329
BEST_FIRST walk for 40003 steps (166 resets) in 224 ms. (177 steps per ms) remains 4/5 properties
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (166 resets) in 203 ms. (196 steps per ms) remains 4/4 properties
Loading property file /tmp/ReachabilityCardinality13387372878276177537.prop.
[2026-06-10 13:55:28] [INFO ] Flow matrix only has 818 transitions (discarded 66 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10268874495179421204.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11662642802274552596.kers'
[2026-06-10 13:55:28] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10268874495179421204.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11662642802274552596.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 818 rows 192 cols 2207 entries
Finished phase 1 with 180 SingleSign rule and 0 generalized
[2026-06-10 13:55:28] [INFO ] Computed 13 invariants in 2 ms
Computed 13 P flows in 6 ms.
Exported basis to /tmp/petrispot-output-11662642802274552596.kers
Total runtime 7 ms.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 6
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :6 after 18
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :18 after 40
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :40 after 250
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :250 after 2129
Reachability property LastZero-PT-N12-ReachabilityCardinality-2024-13 is true.
[2026-06-10 13:55:28] [INFO ] State equation strengthened by 156 read => feed constraints.
SDD proceeding with computation,4 properties remain. new max is 64
SDD size :2129 after 59362
Invariant property LastZero-PT-N12-ReachabilityCardinality-2024-01 does not hold.
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :59362 after 826805
Invariant property LastZero-PT-N12-ReachabilityCardinality-2024-08 does not hold.
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/7 variables, 0/0 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Problem LastZero-PT-N12-ReachabilityCardinality-2024-14 is UNSAT
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-14 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (OVERLAPS) 30/37 variables, 3/3 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/37 variables, 0/3 constraints. Problems are: Problem set: 3 solved, 1 unsolved
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :826805 after 8.07066e+06
SDD proceeding with computation,2 properties remain. new max is 128
SDD size :8.07066e+06 after 8.07069e+06
At refinement iteration 3 (OVERLAPS) 225/262 variables, 37/40 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/262 variables, 5/45 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/262 variables, 0/45 constraints. Problems are: Problem set: 3 solved, 1 unsolved
SDD proceeding with computation,2 properties remain. new max is 256
SDD size :8.07069e+06 after 8.07118e+06
SDD proceeding with computation,2 properties remain. new max is 512
SDD size :8.07118e+06 after 8.07878e+06
At refinement iteration 6 (OVERLAPS) 204/466 variables, 39/84 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/466 variables, 2/86 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/466 variables, 31/117 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/466 variables, 0/117 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 28/494 variables, 15/132 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/494 variables, 13/145 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/494 variables, 0/145 constraints. Problems are: Problem set: 3 solved, 1 unsolved
SDD proceeding with computation,2 properties remain. new max is 1024
SDD size :8.07878e+06 after 8.18931e+06
At refinement iteration 13 (OVERLAPS) 354/848 variables, 54/199 constraints. Problems are: Problem set: 3 solved, 1 unsolved
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,1.02964e+07,0.601734,10760,2,3192,20,9392,8,0,1637,3504,0
Total reachable state count : 10296391

Verifying 5 reachability properties.
Invariant property LastZero-PT-N12-ReachabilityCardinality-2024-01 does not hold.

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-N12-ReachabilityCardinality-2024-01,571,0.602844,10896,2,336,20,9392,9,0,1640,3504,0
Reachability property LastZero-PT-N12-ReachabilityCardinality-2024-03 does not hold.
FORMULA LastZero-PT-N12-ReachabilityCardinality-2024-03 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : LastZero-PT-N12-ReachabilityCardinality-2024-03

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-N12-ReachabilityCardinality-2024-03,0,0.604629,10932,1,0,20,9392,9,0,1647,3504,0
Invariant property LastZero-PT-N12-ReachabilityCardinality-2024-08 does not hold.

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-N12-ReachabilityCardinality-2024-08,31,0.604932,10932,2,335,20,9392,10,0,1649,3504,0
Reachability property LastZero-PT-N12-ReachabilityCardinality-2024-13 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-N12-ReachabilityCardinality-2024-13,191,0.605216,10932,2,310,20,9392,11,0,1650,3504,0
Invariant property LastZero-PT-N12-ReachabilityCardinality-2024-14 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
LastZero-PT-N12-ReachabilityCardinality-2024-14,0,0.605777,10932,1,0,20,9392,11,0,1650,3504,0
After SMT solving in domain Real declared 848/1011 variables, and 199 constraints, problems are : Problem set: 4 solved, 0 unsolved in 459 ms.
Refiners :[Positive P Invariants (semi-flows): 5/13 constraints, State Equation: 91/193 constraints, ReadFeed: 103/156 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 539ms 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 1890 ms.

BK_STOP 1781099728797

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
+ 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-N12"
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-N12, 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-178024402800102"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N12.tgz
mv LastZero-PT-N12 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 ;