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.r144-smll-177955812600242.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 FlexibleBarrier-PT-14a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r144-smll-177955812600242
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 532K
-rw-r--r-- 1 mcc users 7.0K Mar 7 05:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 75K Mar 7 05:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K Mar 7 05:46 CTLFireability.txt
-rw-r--r-- 1 mcc users 36K Mar 7 05:46 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 10:13 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 10:13 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 10:13 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:13 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.4K Mar 7 05:52 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 7 05:52 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Mar 7 05:52 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 40K Mar 7 05:52 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:13 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:13 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 169K 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 1779636460764

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FlexibleBarrier-PT-14a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-24 15:27:42] [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 15:27:42] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 15:27:43] [INFO ] Load time of PNML (sax parser for PT used): 150 ms
[2026-05-24 15:27:43] [INFO ] Transformed 171 places.
[2026-05-24 15:27:43] [INFO ] Transformed 578 transitions.
[2026-05-24 15:27:43] [INFO ] Found NUPN structural information;
[2026-05-24 15:27:43] [INFO ] Parsed PT model containing 171 places and 578 transitions and 2719 arcs in 307 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 171/171 places, 578/578 transitions.
Graph (trivial) has 141 edges and 171 vertex of which 42 / 171 are part of one of the 14 SCC in 4 ms
Free SCC test removed 28 places
Ensure Unique test removed 276 transitions
Reduce isomorphic transitions removed 276 transitions.
Performed 42 Post agglomeration using F-continuation condition.Transition count delta: 42
Deduced a syphon composed of 42 places in 1 ms
Reduce places removed 42 places and 0 transitions.
Iterating global reduction 0 with 84 rules applied. Total rules applied 85 place count 101 transition count 260
Applied a total of 85 rules in 68 ms. Remains 101 /171 variables (removed 70) and now considering 260/578 (removed 318) transitions.
[2026-05-24 15:27:43] [INFO ] Flow matrix only has 128 transitions (discarded 132 similar events)
// Phase 1: matrix 128 rows 101 cols
[2026-05-24 15:27:43] [INFO ] Computed 16 invariants in 10 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:27:44] [INFO ] Implicit Places using invariants in 772 ms returned [99, 100]
Discarding 2 places :
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Implicit Place search using SMT only with invariants took 829 ms to find 2 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 99/171 places, 246/578 transitions.
Graph (trivial) has 154 edges and 99 vertex of which 98 / 99 are part of one of the 14 SCC in 1 ms
Free SCC test removed 84 places
Ensure Unique test removed 140 transitions
Reduce isomorphic transitions removed 140 transitions.
Applied a total of 1 rules in 4 ms. Remains 15 /99 variables (removed 84) and now considering 106/246 (removed 140) transitions.
[2026-05-24 15:27:44] [INFO ] Flow matrix only has 2 transitions (discarded 104 similar events)
// Phase 1: matrix 2 rows 15 cols
[2026-05-24 15:27:44] [INFO ] Computed 14 invariants in 0 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:27:44] [INFO ] Implicit Places using invariants in 31 ms returned []
[2026-05-24 15:27:44] [INFO ] Flow matrix only has 2 transitions (discarded 104 similar events)
[2026-05-24 15:27:44] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:27:44] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-24 15:27:44] [INFO ] Implicit Places using invariants and state equation in 56 ms returned []
Implicit Place search using SMT with State Equation took 90 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 15/171 places, 106/578 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1014 ms. Remains : 15/171 places, 106/578 transitions.
Discarding 14 transitions out of 106. Remains 92
Initial state reduction rules removed 1 formulas.
RANDOM walk for 4 steps (0 resets) in 26 ms. (0 steps per ms) remains 0/91 properties
[2026-05-24 15:27:44] [INFO ] Flatten gal took : 36 ms
[2026-05-24 15:27:44] [INFO ] Flatten gal took : 10 ms
[2026-05-24 15:27:44] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9411177024333558716.gal : 9 ms
[2026-05-24 15:27:44] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1002971360644878886.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9411177024333558716.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1002971360644878886.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_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
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 92 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 1776 ms.

BK_STOP 1779636464573

--------------------
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="FlexibleBarrier-PT-14a"
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 FlexibleBarrier-PT-14a, 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 r144-smll-177955812600242"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-14a.tgz
mv FlexibleBarrier-PT-14a 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 ;