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.r024-smll-177946789500042.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 AutonomousCar-PT-05a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r024-smll-177946789500042
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 456K
-rw-r--r-- 1 mcc users 5.3K Mar 5 16:49 CTLCardinality.txt
-rw-r--r-- 1 mcc users 51K Mar 5 16:49 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K Mar 5 16:49 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Mar 5 16:49 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 07:19 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 07:19 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:19 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:19 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.1K Mar 5 16:49 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 5 16:49 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.8K Mar 5 16:49 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 5 16:49 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:19 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:19 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 114K 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1779472548739

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutonomousCar-PT-05a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-22 17:55:51] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-22 17:55:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 17:55:51] [INFO ] Load time of PNML (sax parser for PT used): 245 ms
[2026-05-22 17:55:51] [INFO ] Transformed 57 places.
[2026-05-22 17:55:51] [INFO ] Transformed 289 transitions.
[2026-05-22 17:55:51] [INFO ] Found NUPN structural information;
[2026-05-22 17:55:51] [INFO ] Parsed PT model containing 57 places and 289 transitions and 2123 arcs in 530 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 57/57 places, 289/289 transitions.
Ensure Unique test removed 113 transitions
Reduce isomorphic transitions removed 113 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 119 rules applied. Total rules applied 119 place count 57 transition count 170
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 125 place count 51 transition count 170
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 129 place count 49 transition count 168
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 131 place count 48 transition count 168
Applied a total of 131 rules in 123 ms. Remains 48 /57 variables (removed 9) and now considering 168/289 (removed 121) transitions.
[2026-05-22 17:55:52] [INFO ] Flow matrix only has 167 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6178747042929015676.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13125972643878005632.kers'
[2026-05-22 17:55:52] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6178747042929015676.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13125972643878005632.kers]
Normalized transition count is 166 out of 167 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 166 rows 47 cols 1080 entries
Finished phase 1 with 38 SingleSign rule and 0 generalized
[2026-05-22 17:55:52] [INFO ] Computed 10 invariants in 1 ms
Computed 10 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-13125972643878005632.kers
Total runtime 4 ms.
[2026-05-22 17:55:52] [INFO ] Implicit Places using invariants in 746 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 826 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 47/57 places, 168/289 transitions.
Applied a total of 0 rules in 7 ms. Remains 47 /47 variables (removed 0) and now considering 168/168 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 995 ms. Remains : 47/57 places, 168/289 transitions.
Discarding 29 transitions out of 168. Remains 139
Initial state reduction rules removed 1 formulas.
[2026-05-22 17:55:54] [INFO ] Flatten gal took : 225 ms
RANDOM walk for 40000 steps (2943 resets) in 4951 ms. (8 steps per ms) remains 5/138 properties
[2026-05-22 17:55:54] [INFO ] Flatten gal took : 79 ms
[2026-05-22 17:55:54] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality1370910929205486810.gal : 77 ms
BEST_FIRST walk for 40002 steps (301 resets) in 362 ms. (110 steps per ms) remains 4/5 properties
BEST_FIRST walk for 40004 steps (306 resets) in 206 ms. (193 steps per ms) remains 3/4 properties
BEST_FIRST walk for 40004 steps (363 resets) in 99 ms. (400 steps per ms) remains 3/3 properties
[2026-05-22 17:55:54] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5705077008607115609.prop : 6 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/ReachabilityCardinality1370910929205486810.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality5705077008607115609.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 ...328
BEST_FIRST walk for 40004 steps (309 resets) in 320 ms. (124 steps per ms) remains 3/3 properties
[2026-05-22 17:55:55] [INFO ] Flow matrix only has 167 transitions (discarded 1 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10505235220300155986.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-336373350781964184.kers'
[2026-05-22 17:55:55] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10505235220300155986.kers, --Pflows, --basisKERS=/tmp/petrispot-output-336373350781964184.kers]
Normalized transition count is 166 out of 167 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 166 rows 47 cols 1080 entries
Finished phase 1 with 38 SingleSign rule and 0 generalized
[2026-05-22 17:55:55] [INFO ] Computed 9 invariants in 1 ms
Computed 9 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-336373350781964184.kers
Total runtime 2 ms.
[2026-05-22 17:55:55] [INFO ] State equation strengthened by 1 read => feed constraints.
Loading property file /tmp/ReachabilityCardinality5705077008607115609.prop.
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :7 after 34
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :34 after 39
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :39 after 210
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :210 after 3648
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :3648 after 11810
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 6/6 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/6 variables, 0/6 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 21/27 variables, 5/11 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/27 variables, 21/32 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/27 variables, 0/32 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 20/47 variables, 4/36 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Reachability property qltransition_128 is true.
Reachability property qltransition_93 is true.
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :11810 after 33158
At refinement iteration 6 (INCLUDED_ONLY) 0/47 variables, 20/56 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/47 variables, 0/56 constraints. Problems are: Problem set: 2 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :33158 after 101017
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,440217,0.578102,11568,2,947,15,22628,7,0,357,28132,0
Total reachable state count : 440217

Verifying 3 reachability properties.
Reachability property qltransition_93 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
qltransition\_93,6,0.581725,11580,2,60,15,22628,8,0,365,28132,0
Reachability property qltransition_128 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
qltransition\_128,6,0.583124,11832,2,60,15,22628,9,0,369,28132,0
Reachability property qltransition_164 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
qltransition\_164,7776,0.584389,11832,2,195,15,22628,9,0,372,28132,0
After SMT solving in domain Real declared 213/214 variables, and 103 constraints, problems are : Problem set: 3 solved, 0 unsolved in 481 ms.
Refiners :[Domain max(s): 47/47 constraints, Positive P Invariants (semi-flows): 9/9 constraints, State Equation: 47/47 constraints, ReadFeed: 0/1 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 631ms problems are : Problem set: 3 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Able to resolve query QuasiLiveness after proving 139 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 4380 ms.

BK_STOP 1779472555844

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -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 QuasiLiveness -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="AutonomousCar-PT-05a"
export BK_EXAMINATION="QuasiLiveness"
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 AutonomousCar-PT-05a, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r024-smll-177946789500042"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-05a.tgz
mv AutonomousCar-PT-05a execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;