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.r032-smll-177946790700037.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)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is AutonomousCar-PT-04b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r032-smll-177946790700037
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 508K
-rw-r--r-- 1 mcc users 5.8K Mar 5 16:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 58K Mar 5 16:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.8K Mar 5 16:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 41K Mar 5 16:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 07:19 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:19 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 07:19 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 07:19 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 5 16:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 123K Mar 5 16:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 5 16:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 5 16:47 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 110K 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 1779472554845

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutonomousCar-PT-04b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-22 17:55:57] [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 17:55:57] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 17:55:57] [INFO ] Load time of PNML (sax parser for PT used): 194 ms
[2026-05-22 17:55:57] [INFO ] Transformed 221 places.
[2026-05-22 17:55:57] [INFO ] Transformed 368 transitions.
[2026-05-22 17:55:57] [INFO ] Found NUPN structural information;
[2026-05-22 17:55:57] [INFO ] Parsed PT model containing 221 places and 368 transitions and 1658 arcs in 417 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 221/221 places, 368/368 transitions.
Graph (trivial) has 211 edges and 221 vertex of which 4 / 221 are part of one of the 2 SCC in 7 ms
Free SCC test removed 2 places
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 103 transitions
Trivial Post-agglo rules discarded 103 transitions
Performed 103 trivial Post agglomeration. Transition count delta: 103
Iterating post reduction 0 with 103 rules applied. Total rules applied 104 place count 219 transition count 263
Reduce places removed 103 places and 0 transitions.
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 15 transitions
Trivial Post-agglo rules discarded 15 transitions
Performed 15 trivial Post agglomeration. Transition count delta: 15
Iterating post reduction 1 with 130 rules applied. Total rules applied 234 place count 116 transition count 236
Reduce places removed 15 places and 0 transitions.
Iterating post reduction 2 with 15 rules applied. Total rules applied 249 place count 101 transition count 236
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 5 Pre rules applied. Total rules applied 249 place count 101 transition count 231
Deduced a syphon composed of 5 places in 4 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 3 with 10 rules applied. Total rules applied 259 place count 96 transition count 231
Performed 48 Post agglomeration using F-continuation condition with reduction of 65 identical transitions.
Deduced a syphon composed of 48 places in 1 ms
Reduce places removed 48 places and 0 transitions.
Iterating global reduction 3 with 96 rules applied. Total rules applied 355 place count 48 transition count 118
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 357 place count 47 transition count 118
Applied a total of 357 rules in 130 ms. Remains 47 /221 variables (removed 174) and now considering 118/368 (removed 250) transitions.
[2026-05-22 17:55:58] [INFO ] Flow matrix only has 117 transitions (discarded 1 similar events)
// Phase 1: matrix 117 rows 47 cols
[2026-05-22 17:55:58] [INFO ] Computed 9 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 17:55:58] [INFO ] Implicit Places using invariants in 612 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 684 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 46/221 places, 118/368 transitions.
Applied a total of 0 rules in 3 ms. Remains 46 /46 variables (removed 0) and now considering 118/118 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 852 ms. Remains : 46/221 places, 118/368 transitions.
Discarding 25 transitions out of 118. Remains 93
Initial state reduction rules removed 1 formulas.
[2026-05-22 17:55:59] [INFO ] Flatten gal took : 145 ms
RANDOM walk for 40000 steps (3309 resets) in 2815 ms. (14 steps per ms) remains 1/92 properties
[2026-05-22 17:55:59] [INFO ] Flatten gal took : 71 ms
BEST_FIRST walk for 40004 steps (474 resets) in 253 ms. (157 steps per ms) remains 1/1 properties
[2026-05-22 17:55:59] [INFO ] Flow matrix only has 117 transitions (discarded 1 similar events)
// Phase 1: matrix 117 rows 46 cols
[2026-05-22 17:55:59] [INFO ] Computed 8 invariants in 4 ms
[2026-05-22 17:55:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16164447275220204619.gal : 42 ms
[2026-05-22 17:55:59] [INFO ] State equation strengthened by 2 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-22 17:55:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8160997106570100015.prop : 7 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16164447275220204619.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8160997106570100015.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
At refinement iteration 0 (INCLUDED_ONLY) 0/2 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Loading property file /tmp/ReachabilityCardinality8160997106570100015.prop.
At refinement iteration 1 (INCLUDED_ONLY) 0/2 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 7/9 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/9 variables, 7/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :7 after 8
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :8 after 50
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :50 after 1906
At refinement iteration 4 (INCLUDED_ONLY) 0/9 variables, 0/11 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :1906 after 2723
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :2723 after 4547
At refinement iteration 5 (OVERLAPS) 37/46 variables, 6/17 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :4547 after 13186
At refinement iteration 6 (INCLUDED_ONLY) 0/46 variables, 37/54 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/46 variables, 0/54 constraints. Problems are: Problem set: 0 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,130183,0.193498,7084,2,551,12,10745,7,0,301,12193,0
Total reachable state count : 130183

Verifying 1 reachability properties.
Reachability property qltransition_113 does not hold.
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL INITIAL_STATE
Problem qltransition_113 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING SMT_REFINEMENT TOPOLOGICAL INITIAL_STATE
SMT process timed out in 339ms, After SMT, problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 2 out of 46 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 46/46 places, 118/118 transitions.
Graph (complete) has 277 edges and 46 vertex of which 44 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.4 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions (Output transitions of discarded places.) removed 2 transitions
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 11 place count 34 transition count 77
Iterating global reduction 0 with 10 rules applied. Total rules applied 21 place count 34 transition count 77
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 25 place count 34 transition count 73
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -13
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 27 place count 33 transition count 86
Free-agglomeration rule applied 3 times.
Iterating global reduction 1 with 3 rules applied. Total rules applied 30 place count 33 transition count 83
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 1 with 3 rules applied. Total rules applied 33 place count 30 transition count 83
Applied a total of 33 rules in 55 ms. Remains 30 /46 variables (removed 16) and now considering 83/118 (removed 35) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 30/46 places, 83/118 transitions.
Total runtime 2847 ms.

BK_STOP 1779472560646

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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-04b"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2025"
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 gold2025"
echo " Input is AutonomousCar-PT-04b, 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 r032-smll-177946790700037"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-04b.tgz
mv AutonomousCar-PT-04b 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 ;