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.r120-smll-177955742400117.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 itstools
Input is Echo-PT-d03r07, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r120-smll-177955742400117
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.7M
-rw-r--r-- 1 mcc users 7.5K Mar 7 05:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K Mar 7 05:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Mar 7 05:21 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 7 05:21 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 09:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 09:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 09:45 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 09:45 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 7 05:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 136K Mar 7 05:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 10K Mar 7 05:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 87K Mar 7 05:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:45 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 09:45 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 2.2M 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 1779571031336

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Echo-PT-d03r07
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-23 21:17:13] [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]
[2026-05-23 21:17:13] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 21:17:14] [INFO ] Load time of PNML (sax parser for PT used): 598 ms
[2026-05-23 21:17:14] [INFO ] Transformed 4209 places.
[2026-05-23 21:17:14] [INFO ] Transformed 3518 transitions.
[2026-05-23 21:17:14] [INFO ] Found NUPN structural information;
[2026-05-23 21:17:14] [INFO ] Parsed PT model containing 4209 places and 3518 transitions and 25540 arcs in 834 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 4209/4209 places, 3518/3518 transitions.
Reduce places removed 343 places and 0 transitions.
Iterating post reduction 0 with 343 rules applied. Total rules applied 343 place count 3866 transition count 3518
Applied a total of 343 rules in 213 ms. Remains 3866 /4209 variables (removed 343) and now considering 3518/3518 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17972443495299001472.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-13319400297124389902.kers'
[2026-05-23 21:17:14] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17972443495299001472.kers, --Pflows, --basisKERS=/tmp/petrispot-output-13319400297124389902.kers]
Culled 0 columns in 7 ms.
// Phase 1: matrix 3518 rows 3866 cols 23781 entries
[2026-05-23 21:17:42] [INFO ] Invariants computation overflowed in 27237 ms
Computed 0 P flows in 27239 ms.
Exported basis to /tmp/petrispot-output-13319400297124389902.kers
Total runtime 27243 ms.
[2026-05-23 21:17:48] [INFO ] Implicit Places using invariants in 34300 ms returned []
[2026-05-23 21:17:49] [INFO ] Invariant cache hit.
[2026-05-23 21:20:29] [INFO ] Implicit Places using invariants and state equation in 160038 ms returned []
Implicit Place search using SMT with State Equation took 194434 ms to find 0 implicit places.
Running 3517 sub problems to find dead transitions.
[2026-05-23 21:20:29] [INFO ] Invariant cache hit.
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 0 (INCLUDED_ONLY) 0/3865 variables, 3865/3865 constraints. Problems are: Problem set: 0 solved, 3517 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 3865/7384 variables, and 3865 constraints, problems are : Problem set: 0 solved, 3517 unsolved in 30225 ms.
Refiners :[Domain max(s): 3865/3866 constraints, State Equation: 0/3866 constraints, PredecessorRefiner: 3517/3517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3517 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3865 variables, 3865/3865 constraints. Problems are: Problem set: 0 solved, 3517 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 3865/7384 variables, and 3865 constraints, problems are : Problem set: 0 solved, 3517 unsolved in 30130 ms.
Refiners :[Domain max(s): 3865/3866 constraints, State Equation: 0/3866 constraints, PredecessorRefiner: 0/3517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 63831ms problems are : Problem set: 0 solved, 3517 unsolved
Search for dead transitions found 0 dead transitions in 63947ms
Starting structural reductions in LIVENESS mode, iteration 1 : 3866/4209 places, 3518/3518 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 258707 ms. Remains : 3866/4209 places, 3518/3518 transitions.
Initial state reduction rules removed 1 formulas.
[2026-05-23 21:21:35] [INFO ] Flatten gal took : 918 ms
[2026-05-23 21:21:35] [INFO ] Flatten gal took : 350 ms
[2026-05-23 21:21:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17903839075602768503.gal : 201 ms
[2026-05-23 21:21:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16032589220142993768.prop : 75 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/ReachabilityCardinality17903839075602768503.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16032589220142993768.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 ...330
RANDOM walk for 40000 steps (56 resets) in 16916 ms. (2 steps per ms) remains 21/3517 properties
BEST_FIRST walk for 4004 steps (8 resets) in 101 ms. (39 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 98 ms. (40 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 199 ms. (20 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 100 ms. (39 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4003 steps (8 resets) in 102 ms. (38 steps per ms) remains 20/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 113 ms. (35 steps per ms) remains 20/20 properties
Loading property file /tmp/ReachabilityCardinality16032589220142993768.prop.
BEST_FIRST walk for 4004 steps (8 resets) in 108 ms. (36 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 99 ms. (40 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 90 ms. (44 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 79 ms. (50 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 92 ms. (43 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 108 ms. (36 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 75 ms. (52 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 63 ms. (62 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 78 ms. (50 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 111 ms. (35 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 72 ms. (54 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 60 ms. (65 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 93 ms. (42 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 98 ms. (40 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (8 resets) in 93 ms. (42 steps per ms) remains 20/20 properties
[2026-05-23 21:21:38] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/117 variables, 117/117 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/117 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (OVERLAPS) 626/743 variables, 117/234 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/743 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (OVERLAPS) 2625/3368 variables, 1103/1337 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/3368 variables, 1103/2440 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 3368/7384 variables, and 2440 constraints, problems are : Problem set: 0 solved, 20 unsolved in 5019 ms.
Refiners :[Domain max(s): 1220/3866 constraints, State Equation: 1220/3866 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 20 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/117 variables, 117/117 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/117 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 2 (OVERLAPS) 626/743 variables, 117/234 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/743 variables, 0/234 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 4 (OVERLAPS) 2625/3368 variables, 1103/1337 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/3368 variables, 1103/2440 constraints. Problems are: Problem set: 0 solved, 20 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/3368 variables, 20/2460 constraints. Problems are: Problem set: 0 solved, 20 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 3368/7384 variables, and 2460 constraints, problems are : Problem set: 0 solved, 20 unsolved in 5011 ms.
Refiners :[Domain max(s): 1220/3866 constraints, State Equation: 1220/3866 constraints, PredecessorRefiner: 20/20 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10105ms problems are : Problem set: 0 solved, 20 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 117 out of 3866 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3866/3866 places, 3518/3518 transitions.
Graph (complete) has 14527 edges and 3866 vertex of which 3858 are kept as prefixes of interest. Removing 8 places using SCC suffix rule.61 ms
Discarding 8 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 3858 transition count 3516
Applied a total of 2 rules in 978 ms. Remains 3858 /3866 variables (removed 8) and now considering 3516/3518 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 979 ms. Remains : 3858/3866 places, 3516/3518 transitions.
RANDOM walk for 239435 steps (348 resets) in 13879 ms. (17 steps per ms) remains 0/20 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 3518 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 281778 ms.

BK_STOP 1779571315337

--------------------
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="Echo-PT-d03r07"
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 Echo-PT-d03r07, 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 r120-smll-177955742400117"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Echo-PT-d03r07.tgz
mv Echo-PT-d03r07 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 ;