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.r152-tall-177961077400247.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 GPUForwardProgress-PT-08a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r152-tall-177961077400247
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 608K
-rw-r--r-- 1 mcc users 6.2K Mar 7 11:28 CTLCardinality.txt
-rw-r--r-- 1 mcc users 63K Mar 7 11:28 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Mar 7 11:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 69K Mar 7 11:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 10:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 10:35 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:35 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Mar 7 11:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 195K Mar 7 11:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Mar 7 11:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 132K Mar 7 11:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:35 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:35 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 14K 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 1779700902811

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=GPUForwardProgress-PT-08a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-25 09:21:43] [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]
[2026-05-25 09:21:43] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 09:21:44] [INFO ] Load time of PNML (sax parser for PT used): 39 ms
[2026-05-25 09:21:44] [INFO ] Transformed 40 places.
[2026-05-25 09:21:44] [INFO ] Transformed 49 transitions.
[2026-05-25 09:21:44] [INFO ] Found NUPN structural information;
[2026-05-25 09:21:44] [INFO ] Parsed PT model containing 40 places and 49 transitions and 181 arcs in 210 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 40/40 places, 49/49 transitions.
Ensure Unique test removed 1 places
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 0 with 11 rules applied. Total rules applied 11 place count 39 transition count 39
Performed 8 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 8 Pre rules applied. Total rules applied 11 place count 39 transition count 31
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 1 with 16 rules applied. Total rules applied 27 place count 31 transition count 31
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
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 29 place count 30 transition count 30
Applied a total of 29 rules in 27 ms. Remains 30 /40 variables (removed 10) and now considering 30/49 (removed 19) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3678421466198869421.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8674792267956459844.kers'
[2026-05-25 09:21:44] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3678421466198869421.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8674792267956459844.kers]
Normalized transition count is 29 out of 30 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 29 rows 30 cols 107 entries
Finished phase 1 with 20 SingleSign rule and 1 generalized
[2026-05-25 09:21:44] [INFO ] Computed 9 invariants in 0 ms
Computed 9 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-8674792267956459844.kers
Total runtime 2 ms.
[2026-05-25 09:21:44] [INFO ] Implicit Places using invariants in 206 ms returned []
[2026-05-25 09:21:44] [INFO ] Invariant cache hit.
[2026-05-25 09:21:44] [INFO ] State equation strengthened by 17 read => feed constraints.
[2026-05-25 09:21:44] [INFO ] Implicit Places using invariants and state equation in 76 ms returned []
Implicit Place search using SMT with State Equation took 320 ms to find 0 implicit places.
Running 29 sub problems to find dead transitions.
[2026-05-25 09:21:44] [INFO ] Invariant cache hit.
[2026-05-25 09:21:44] [INFO ] State equation strengthened by 17 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/29 variables, 29/29 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/29 variables, 9/38 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/29 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 3 (OVERLAPS) 29/58 variables, 29/67 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 16/83 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/58 variables, 0/83 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 6 (OVERLAPS) 1/59 variables, 1/84 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/59 variables, 1/85 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/59 variables, 0/85 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 9 (OVERLAPS) 1/60 variables, 1/86 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/60 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 11 (OVERLAPS) 0/60 variables, 0/86 constraints. Problems are: Problem set: 0 solved, 29 unsolved
No progress, stopping.
After SMT solving in domain Real declared 60/60 variables, and 86 constraints, problems are : Problem set: 0 solved, 29 unsolved in 798 ms.
Refiners :[Domain max(s): 30/30 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 30/30 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 29/29 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 29 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/29 variables, 29/29 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/29 variables, 9/38 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/29 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 3 (OVERLAPS) 29/58 variables, 29/67 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 16/83 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/58 variables, 29/112 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/58 variables, 0/112 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 7 (OVERLAPS) 1/59 variables, 1/113 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/59 variables, 1/114 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/59 variables, 0/114 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 10 (OVERLAPS) 1/60 variables, 1/115 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/60 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 12 (OVERLAPS) 0/60 variables, 0/115 constraints. Problems are: Problem set: 0 solved, 29 unsolved
No progress, stopping.
After SMT solving in domain Int declared 60/60 variables, and 115 constraints, problems are : Problem set: 0 solved, 29 unsolved in 1338 ms.
Refiners :[Domain max(s): 30/30 constraints, Generalized P Invariants (flows): 9/9 constraints, State Equation: 30/30 constraints, ReadFeed: 17/17 constraints, PredecessorRefiner: 29/29 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2184ms problems are : Problem set: 0 solved, 29 unsolved
Search for dead transitions found 0 dead transitions in 2196ms
Starting structural reductions in LIVENESS mode, iteration 1 : 30/40 places, 30/49 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 2573 ms. Remains : 30/40 places, 30/49 transitions.
Discarding 10 transitions out of 30. Remains 20
Initial state reduction rules removed 1 formulas.
RANDOM walk for 29559 steps (456 resets) in 503 ms. (58 steps per ms) remains 0/19 properties
[2026-05-25 09:21:46] [INFO ] Flatten gal took : 20 ms
[2026-05-25 09:21:46] [INFO ] Flatten gal took : 7 ms
[2026-05-25 09:21:46] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7860799758741708907.gal : 4 ms
[2026-05-25 09:21:46] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9505277100057093492.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/ReachabilityCardinality7860799758741708907.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9505277100057093492.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 ...328
Loading property file /tmp/ReachabilityCardinality9505277100057093492.prop.
ITS tools runner thread asked to quit. Dying gracefully.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:188)
at java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:343)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:420)
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 20 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 3055 ms.

BK_STOP 1779700906995

--------------------
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="GPUForwardProgress-PT-08a"
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 GPUForwardProgress-PT-08a, 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 r152-tall-177961077400247"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/GPUForwardProgress-PT-08a.tgz
mv GPUForwardProgress-PT-08a 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 ;