fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r002-oct2-177944366400542
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for AutoFlight-PT-12a

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
415.552 5345.00 14836.00 113.30 FTTFTFFFTTFTTFTT normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r002-oct2-177944366400542.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 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 AutoFlight-PT-12a, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r002-oct2-177944366400542
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 500K
-rw-r--r-- 1 mcc users 8.0K Mar 5 16:34 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K Mar 5 16:34 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 5 16:33 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Mar 5 16:33 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 07:15 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 07:15 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 07:15 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 07:15 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.0K Mar 5 16:34 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 5 16:34 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.5K Mar 5 16:34 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K Mar 5 16:34 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 85K Mar 3 18:30 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 AutoFlight-PT-12a-ReachabilityCardinality-2024-00
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-01
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-02
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-03
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-04
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-05
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-06
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-07
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-08
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-09
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-10
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-11
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-12
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-13
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-14
FORMULA_NAME AutoFlight-PT-12a-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779493538298

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutoFlight-PT-12a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-05-22 23:45:40] [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]
[2026-05-22 23:45:40] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 23:45:40] [INFO ] Load time of PNML (sax parser for PT used): 105 ms
[2026-05-22 23:45:40] [INFO ] Transformed 307 places.
[2026-05-22 23:45:40] [INFO ] Transformed 305 transitions.
[2026-05-22 23:45:40] [INFO ] Found NUPN structural information;
[2026-05-22 23:45:40] [INFO ] Parsed PT model containing 307 places and 305 transitions and 980 arcs in 231 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 21 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 60 transitions
Reduce redundant transitions removed 60 transitions.
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2026-05-22 23:45:41] [INFO ] Flatten gal took : 65 ms
[2026-05-22 23:45:41] [INFO ] Flatten gal took : 48 ms
RANDOM walk for 40000 steps (769 resets) in 1754 ms. (22 steps per ms) remains 3/13 properties
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2026-05-22 23:45:41] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17052768050410352828.gal : 55 ms
[2026-05-22 23:45:41] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8901222912163725319.prop : 13 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/ReachabilityCardinality17052768050410352828.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8901222912163725319.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (8 resets) in 742 ms. (53 steps per ms) remains 3/3 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
Loading property file /tmp/ReachabilityCardinality8901222912163725319.prop.
BEST_FIRST walk for 40003 steps (44 resets) in 278 ms. (143 steps per ms) remains 3/3 properties
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :3 after 33
BEST_FIRST walk for 40004 steps (44 resets) in 263 ms. (151 steps per ms) remains 3/3 properties
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :33 after 513
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :513 after 65537
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :65537 after 8.38861e+06
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :8.38861e+06 after 1.59565e+08
SDD proceeding with computation,3 properties remain. new max is 256
SDD size :1.59565e+08 after 1.59711e+08
SDD proceeding with computation,3 properties remain. new max is 512
SDD size :1.59711e+08 after 1.85074e+08
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-12552014144531336008.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7284935221454902534.kers'
[2026-05-22 23:45:41] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-12552014144531336008.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7284935221454902534.kers]
Culling duplicate invariants (modulo rational): removing 24 columns.
Culled 24 columns in 12 ms.
// Phase 1: matrix 245 rows 283 cols 716 entries
Finished phase 1 with 217 SingleSign rule and 14 generalized
[2026-05-22 23:45:41] [INFO ] Computed 76 invariants in 13 ms
Computed 76 P flows in 14 ms.
Exported basis to /tmp/petrispot-output-7284935221454902534.kers
Total runtime 14 ms.
SDD proceeding with computation,3 properties remain. new max is 1024
SDD size :1.85074e+08 after 2.07946e+08
[2026-05-22 23:45:41] [INFO ] State equation strengthened by 60 read => feed constraints.
SDD proceeding with computation,3 properties remain. new max is 2048
SDD size :2.07946e+08 after 2.62537e+08
SDD proceeding with computation,3 properties remain. new max is 4096
SDD size :2.62537e+08 after 4.25329e+08
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/47 variables, 47/47 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/47 variables, 0/47 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Reachability property AutoFlight-PT-12a-ReachabilityCardinality-2024-08 is true.
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,2 properties remain. new max is 4096
SDD size :4.25329e+08 after 4.13445e+09
At refinement iteration 2 (OVERLAPS) 165/212 variables, 24/71 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/212 variables, 165/236 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/212 variables, 0/236 constraints. Problems are: Problem set: 1 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 8192
At refinement iteration 5 (OVERLAPS) 94/306 variables, 51/287 constraints. Problems are: Problem set: 1 solved, 2 unsolved
SDD size :4.13445e+09 after 5.63197e+09
At refinement iteration 6 (INCLUDED_ONLY) 0/306 variables, 94/381 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/306 variables, 0/381 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 1/307 variables, 1/382 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/307 variables, 1/383 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/307 variables, 0/383 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 245/552 variables, 307/690 constraints. Problems are: Problem set: 1 solved, 2 unsolved
SDD proceeding with computation,2 properties remain. new max is 16384
SDD size :5.63197e+09 after 2.58766e+10
At refinement iteration 12 (INCLUDED_ONLY) 0/552 variables, 60/750 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/552 variables, 0/750 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 14 (OVERLAPS) 0/552 variables, 0/750 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 552/552 variables, and 750 constraints, problems are : Problem set: 1 solved, 2 unsolved in 1569 ms.
Refiners :[Domain max(s): 307/307 constraints, Positive P Invariants (semi-flows): 75/75 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 307/307 constraints, ReadFeed: 60/60 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 2 unsolved
Problem AutoFlight-PT-12a-ReachabilityCardinality-2024-14 is UNSAT
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-14 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 0 (INCLUDED_ONLY) 0/46 variables, 46/46 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/46 variables, 0/46 constraints. Problems are: Problem set: 2 solved, 1 unsolved
Problem AutoFlight-PT-12a-ReachabilityCardinality-2024-01 is UNSAT
FORMULA AutoFlight-PT-12a-ReachabilityCardinality-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 211/552 variables, and 69 constraints, problems are : Problem set: 3 solved, 0 unsolved in 119 ms.
Refiners :[Domain max(s): 46/307 constraints, Positive P Invariants (semi-flows): 23/75 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/307 constraints, ReadFeed: 0/60 constraints, PredecessorRefiner: 0/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1791ms problems are : Problem set: 3 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 3286 ms.

BK_STOP 1779493543643

--------------------
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="AutoFlight-PT-12a"
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 AutoFlight-PT-12a, 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 r002-oct2-177944366400542"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-12a.tgz
mv AutoFlight-PT-12a 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 ;