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.r104-tall-177955698600212.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 DiscoveryGPU-PT-12b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r104-tall-177955698600212
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 524K
-rw-r--r-- 1 mcc users 8.1K Mar 6 16:15 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K Mar 6 16:15 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Mar 6 16:15 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K Mar 6 16:15 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 09:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 09:14 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 09:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 09:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.9K Mar 6 16:15 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K Mar 6 16:15 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.0K Mar 6 16:15 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 57K Mar 6 16:15 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 09:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:14 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 89K 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 1779608264744

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=DiscoveryGPU-PT-12b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-24 07:37:45] [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]
[2026-05-24 07:37:45] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 07:37:46] [INFO ] Load time of PNML (sax parser for PT used): 79 ms
[2026-05-24 07:37:46] [INFO ] Transformed 352 places.
[2026-05-24 07:37:46] [INFO ] Transformed 374 transitions.
[2026-05-24 07:37:46] [INFO ] Found NUPN structural information;
[2026-05-24 07:37:46] [INFO ] Parsed PT model containing 352 places and 374 transitions and 977 arcs in 167 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 352/352 places, 374/374 transitions.
Reduce places removed 24 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 90 transitions
Trivial Post-agglo rules discarded 90 transitions
Performed 90 trivial Post agglomeration. Transition count delta: 90
Iterating post reduction 0 with 114 rules applied. Total rules applied 114 place count 328 transition count 284
Reduce places removed 90 places and 0 transitions.
Iterating post reduction 1 with 90 rules applied. Total rules applied 204 place count 238 transition count 284
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 12 Pre rules applied. Total rules applied 204 place count 238 transition count 272
Deduced a syphon composed of 12 places in 2 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 2 with 24 rules applied. Total rules applied 228 place count 226 transition count 272
Performed 115 Post agglomeration using F-continuation condition.Transition count delta: 115
Deduced a syphon composed of 115 places in 1 ms
Reduce places removed 115 places and 0 transitions.
Iterating global reduction 2 with 230 rules applied. Total rules applied 458 place count 111 transition count 157
Applied a total of 458 rules in 66 ms. Remains 111 /352 variables (removed 241) and now considering 157/374 (removed 217) transitions.
[2026-05-24 07:37:46] [INFO ] Flow matrix only has 134 transitions (discarded 23 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17846834158119164184.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10427791955517478653.kers'
[2026-05-24 07:37:46] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17846834158119164184.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10427791955517478653.kers]
Normalized transition count is 133 out of 134 initially.
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 133 rows 109 cols 253 entries
Finished phase 1 with 109 SingleSign rule and 0 generalized
[2026-05-24 07:37:46] [INFO ] Computed 2 invariants in 0 ms
Computed 2 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-10427791955517478653.kers
Total runtime 1 ms.
[2026-05-24 07:37:46] [INFO ] Implicit Places using invariants in 288 ms returned []
[2026-05-24 07:37:46] [INFO ] Flow matrix only has 134 transitions (discarded 23 similar events)
[2026-05-24 07:37:46] [INFO ] Invariant cache hit.
[2026-05-24 07:37:46] [INFO ] State equation strengthened by 133 read => feed constraints.
[2026-05-24 07:37:47] [INFO ] Implicit Places using invariants and state equation in 685 ms returned [109, 110]
Discarding 2 places :
Implicit Place search using SMT with State Equation took 1007 ms to find 2 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 109/352 places, 157/374 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 36 transitions
Trivial Post-agglo rules discarded 36 transitions
Performed 36 trivial Post agglomeration. Transition count delta: 36
Iterating post reduction 0 with 36 rules applied. Total rules applied 36 place count 109 transition count 121
Reduce places removed 36 places and 0 transitions.
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 24 transitions
Trivial Post-agglo rules discarded 24 transitions
Performed 24 trivial Post agglomeration. Transition count delta: 24
Iterating post reduction 1 with 72 rules applied. Total rules applied 108 place count 73 transition count 85
Reduce places removed 24 places and 0 transitions.
Iterating post reduction 2 with 24 rules applied. Total rules applied 132 place count 49 transition count 85
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Deduced a syphon composed of 24 places in 1 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 3 with 48 rules applied. Total rules applied 180 place count 25 transition count 61
Applied a total of 180 rules in 5 ms. Remains 25 /109 variables (removed 84) and now considering 61/157 (removed 96) transitions.
[2026-05-24 07:37:47] [INFO ] Flow matrix only has 38 transitions (discarded 23 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-786540751277623511.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14341847156944694918.kers'
[2026-05-24 07:37:47] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-786540751277623511.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14341847156944694918.kers]
Normalized transition count is 37 out of 38 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 37 rows 25 cols 61 entries
Finished phase 1 with 25 SingleSign rule and 0 generalized
[2026-05-24 07:37:47] [INFO ] Computed 0 invariants in 0 ms
Computed 0 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-14341847156944694918.kers
Total runtime 2 ms.
[2026-05-24 07:37:47] [INFO ] Implicit Places using invariants in 29 ms returned []
[2026-05-24 07:37:47] [INFO ] Flow matrix only has 38 transitions (discarded 23 similar events)
[2026-05-24 07:37:47] [INFO ] Invariant cache hit.
[2026-05-24 07:37:47] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-24 07:37:47] [INFO ] Implicit Places using invariants and state equation in 33 ms returned []
Implicit Place search using SMT with State Equation took 64 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 25/352 places, 61/374 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1156 ms. Remains : 25/352 places, 61/374 transitions.
Discarding 36 transitions out of 61. Remains 25
Initial state reduction rules removed 1 formulas.
RANDOM walk for 374 steps (17 resets) in 37 ms. (9 steps per ms) remains 0/24 properties
[2026-05-24 07:37:47] [INFO ] Flatten gal took : 119 ms
[2026-05-24 07:37:47] [INFO ] Flatten gal took : 4 ms
[2026-05-24 07:37:47] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3110783447351136238.gal : 4 ms
[2026-05-24 07:37:47] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11241729480410397933.prop : 0 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/ReachabilityCardinality3110783447351136238.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11241729480410397933.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

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
ITS tools runner thread asked to quit. Dying gracefully.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.ensureOpen(BufferedInputStream.java:206)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:411)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:405)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:350)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:393)
at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
at java.base/java.io.BufferedReader.implReadLine(BufferedReader.java:370)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:347)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:436)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:1583)
Able to resolve query QuasiLiveness after proving 25 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 1587 ms.

BK_STOP 1779608267538

--------------------
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
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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="DiscoveryGPU-PT-12b"
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 DiscoveryGPU-PT-12b, 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 r104-tall-177955698600212"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DiscoveryGPU-PT-12b.tgz
mv DiscoveryGPU-PT-12b 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 ;