fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r008-oct2-177944369900353
Last Updated
Jun 17, 2026

About the Execution of ITS-Tools for AutoFlight-PT-24b

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
887.655 15481.00 43700.00 49.70 F 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.r008-oct2-177944369900353.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-24b, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r008-oct2-177944369900353
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 8.5K Mar 5 16:35 CTLCardinality.txt
-rw-r--r-- 1 mcc users 96K Mar 5 16:35 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 5 16:35 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Mar 5 16:35 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 07:15 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 07:15 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 5 16:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 139K Mar 5 16:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 16:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 89K Mar 5 16:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:16 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 538K 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

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1779656155767

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutoFlight-PT-24b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202604301425
[2026-05-24 20:55:57] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-24 20:55:57] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 20:55:57] [INFO ] Load time of PNML (sax parser for PT used): 205 ms
[2026-05-24 20:55:57] [INFO ] Transformed 2230 places.
[2026-05-24 20:55:57] [INFO ] Transformed 2228 transitions.
[2026-05-24 20:55:57] [INFO ] Found NUPN structural information;
[2026-05-24 20:55:57] [INFO ] Parsed PT model containing 2230 places and 2228 transitions and 5186 arcs in 353 ms.
Structural test allowed to assert that 1331 places are NOT stable. Took 41 ms.
[2026-05-24 20:55:58] [INFO ] Flatten gal took : 334 ms
[2026-05-24 20:55:58] [INFO ] Flatten gal took : 162 ms
[2026-05-24 20:55:58] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality974795078296055875.gal : 76 ms
[2026-05-24 20:55:58] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality363086316243676077.prop : 8 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/ReachabilityCardinality974795078296055875.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality363086316243676077.prop' '--nowitness' '--gen-order' 'FOLLOW'

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 ...326
RANDOM walk for 40000 steps (36 resets) in 4615 ms. (8 steps per ms) remains 805/899 properties
BEST_FIRST walk for 123 steps (8 resets) in 12 ms. (9 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 16 ms. (7 steps per ms) remains 805/805 properties
BEST_FIRST walk for 124 steps (8 resets) in 16 ms. (7 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 37 ms. (3 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 13 ms. (8 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
Loading property file /tmp/ReachabilityCardinality363086316243676077.prop.
BEST_FIRST walk for 123 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 121 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 11 ms. (10 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 124 steps (8 resets) in 9 ms. (12 steps per ms) remains 805/805 properties
BEST_FIRST walk for 124 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 11 ms. (10 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 9 ms. (12 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 11 ms. (10 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 19 ms. (6 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 12 ms. (9 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 15 ms. (7 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 11 ms. (10 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 12 ms. (9 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 20 ms. (5 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 121 steps (8 resets) in 9 ms. (12 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 9 ms. (12 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
BEST_FIRST walk for 121 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 121 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 6 ms. (17 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 19 ms. (6 steps per ms) remains 805/805 properties
BEST_FIRST walk for 123 steps (8 resets) in 10 ms. (11 steps per ms) remains 805/805 properties
BEST_FIRST walk for 122 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 124 steps (8 resets) in 20 ms. (5 steps per ms) remains 805/805 properties
BEST_FIRST walk for 121 steps (8 resets) in 7 ms. (15 steps per ms) remains 805/805 properties
BEST_FIRST walk for 120 steps (8 resets) in 8 ms. (13 steps per ms) remains 805/805 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-5524790854273264999.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16070149305321169966.kers'
[2026-05-24 20:55:59] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-5524790854273264999.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16070149305321169966.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 2228 rows 2230 cols 5186 entries
Finished phase 1 with 2056 SingleSign rule and 26 generalized
[2026-05-24 20:55:59] [INFO ] Computed 148 invariants in 13 ms
Computed 148 P flows in 14 ms.
Exported basis to /tmp/petrispot-output-16070149305321169966.kers
Total runtime 15 ms.
SDD proceeding with computation,899 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,899 properties remain. new max is 8
SDD size :3 after 8
At refinement iteration 0 (INCLUDED_ONLY) 0/805 variables, 805/805 constraints. Problems are: Problem set: 0 solved, 805 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 805/4458 variables, and 805 constraints, problems are : Problem set: 0 solved, 805 unsolved in 5112 ms.
Refiners :[Domain max(s): 805/2230 constraints, Positive P Invariants (semi-flows): 0/147 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2230 constraints, PredecessorRefiner: 805/805 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 805 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/805 variables, 805/805 constraints. Problems are: Problem set: 0 solved, 805 unsolved
SDD proceeding with computation,899 properties remain. new max is 16
SDD size :8 after 17
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 805/4458 variables, and 805 constraints, problems are : Problem set: 0 solved, 805 unsolved in 5047 ms.
Refiners :[Domain max(s): 805/2230 constraints, Positive P Invariants (semi-flows): 0/147 constraints, Generalized P Invariants (flows): 0/1 constraints, State Equation: 0/2230 constraints, PredecessorRefiner: 0/805 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10545ms problems are : Problem set: 0 solved, 805 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 805 out of 2230 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2230/2230 places, 2228/2228 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 670 transitions
Trivial Post-agglo rules discarded 670 transitions
Performed 670 trivial Post agglomeration. Transition count delta: 670
Iterating post reduction 0 with 670 rules applied. Total rules applied 670 place count 2230 transition count 1558
Reduce places removed 670 places and 0 transitions.
Ensure Unique test removed 74 transitions
Reduce isomorphic transitions removed 74 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 48 transitions
Trivial Post-agglo rules discarded 48 transitions
Performed 48 trivial Post agglomeration. Transition count delta: 48
Iterating post reduction 1 with 792 rules applied. Total rules applied 1462 place count 1560 transition count 1436
Reduce places removed 48 places and 0 transitions.
Iterating post reduction 2 with 48 rules applied. Total rules applied 1510 place count 1512 transition count 1436
Performed 141 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 141 Pre rules applied. Total rules applied 1510 place count 1512 transition count 1295
Deduced a syphon composed of 141 places in 10 ms
Reduce places removed 141 places and 0 transitions.
Iterating global reduction 3 with 282 rules applied. Total rules applied 1792 place count 1371 transition count 1295
Discarding 9 places :
Symmetric choice reduction at 3 with 9 rule applications. Total rules 1801 place count 1362 transition count 1286
Iterating global reduction 3 with 9 rules applied. Total rules applied 1810 place count 1362 transition count 1286
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 7 Pre rules applied. Total rules applied 1810 place count 1362 transition count 1279
Deduced a syphon composed of 7 places in 29 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 3 with 14 rules applied. Total rules applied 1824 place count 1355 transition count 1279
Performed 261 Post agglomeration using F-continuation condition.Transition count delta: 261
Deduced a syphon composed of 261 places in 0 ms
Reduce places removed 261 places and 0 transitions.
Iterating global reduction 3 with 522 rules applied. Total rules applied 2346 place count 1094 transition count 1018
Renaming transitions due to excessive name length > 1024 char.
Drop transitions (Redundant composition of simpler transitions.) removed 46 transitions
Redundant transition composition rules discarded 46 transitions
Iterating global reduction 3 with 46 rules applied. Total rules applied 2392 place count 1094 transition count 972
Free-agglomeration rule applied 96 times.
Iterating global reduction 3 with 96 rules applied. Total rules applied 2488 place count 1094 transition count 876
Reduce places removed 96 places and 0 transitions.
Iterating post reduction 3 with 96 rules applied. Total rules applied 2584 place count 998 transition count 876
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 4 with 1 rules applied. Total rules applied 2585 place count 997 transition count 875
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 4 with 8 rules applied. Total rules applied 2593 place count 989 transition count 875
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 8 Pre rules applied. Total rules applied 2593 place count 989 transition count 867
Deduced a syphon composed of 8 places in 1 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 5 with 16 rules applied. Total rules applied 2609 place count 981 transition count 867
Applied a total of 2609 rules in 683 ms. Remains 981 /2230 variables (removed 1249) and now considering 867/2228 (removed 1361) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 692 ms. Remains : 981/2230 places, 867/2228 transitions.
RANDOM walk for 11584 steps (0 resets) in 1083 ms. (10 steps per ms) remains 0/805 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query StableMarking after proving 900 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK MARKED_SUFFIX_TEST TOPOLOGICAL
Total runtime 14008 ms.

BK_STOP 1779656171248

--------------------
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
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -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 StableMarking -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="AutoFlight-PT-24b"
export BK_EXAMINATION="StableMarking"
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 AutoFlight-PT-24b, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r008-oct2-177944369900353"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-24b.tgz
mv AutoFlight-PT-24b execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;