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.r072-tall-177946970400327.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 CopsAndRobbers-PT-KFL028N008K002X005, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r072-tall-177946970400327
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 11K Mar 6 13:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 95K Mar 6 13:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 13:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Mar 6 13:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 5.1K Mar 15 08:37 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Mar 15 08:37 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:37 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:37 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 13:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 102K Mar 6 13:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Mar 6 13:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 76K Mar 6 13:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:37 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K Mar 15 08:37 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 19 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 762K 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 1779524017172

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CopsAndRobbers-PT-KFL028N008K002X005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-23 08:13:38] [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 08:13:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 08:13:38] [INFO ] Load time of PNML (sax parser for PT used): 115 ms
[2026-05-23 08:13:38] [INFO ] Transformed 146 places.
[2026-05-23 08:13:38] [INFO ] Transformed 927 transitions.
[2026-05-23 08:13:38] [INFO ] Parsed PT model containing 146 places and 927 transitions and 5438 arcs in 216 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 146/146 places, 927/927 transitions.
Reduce places removed 28 places and 0 transitions.
Iterating post reduction 0 with 28 rules applied. Total rules applied 28 place count 118 transition count 927
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 28 place count 118 transition count 926
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 30 place count 117 transition count 926
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 15 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 32 place count 116 transition count 925
Applied a total of 32 rules in 83 ms. Remains 116 /146 variables (removed 30) and now considering 925/927 (removed 2) transitions.
Running 850 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9069766620877457173.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15391515164028522108.kers'
[2026-05-23 08:13:38] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9069766620877457173.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15391515164028522108.kers]
Culling duplicate invariants (modulo rational): removing 28 columns.
Culled 28 columns in 0 ms.
// Phase 1: matrix 925 rows 88 cols 3530 entries
Finished phase 1 with 86 SingleSign rule and 0 generalized
[2026-05-23 08:13:38] [INFO ] Computed 30 invariants in 3 ms
Computed 30 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-15391515164028522108.kers
Total runtime 5 ms.
[2026-05-23 08:13:38] [INFO ] State equation strengthened by 70 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
At refinement iteration 0 (INCLUDED_ONLY) 0/116 variables, 30/30 constraints. Problems are: Problem set: 0 solved, 850 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/116 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 850 unsolved
At refinement iteration 2 (OVERLAPS) 925/1041 variables, 116/146 constraints. Problems are: Problem set: 0 solved, 850 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 3 (INCLUDED_ONLY) 0/1041 variables, 70/216 constraints. Problems are: Problem set: 0 solved, 850 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 1041/1041 variables, and 216 constraints, problems are : Problem set: 0 solved, 850 unsolved in 20054 ms.
Refiners :[Positive P Invariants (semi-flows): 30/30 constraints, State Equation: 116/116 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 850/85 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 850 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/116 variables, 30/30 constraints. Problems are: Problem set: 0 solved, 850 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/116 variables, 0/30 constraints. Problems are: Problem set: 0 solved, 850 unsolved
At refinement iteration 2 (OVERLAPS) 925/1041 variables, 116/146 constraints. Problems are: Problem set: 0 solved, 850 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1041 variables, 70/216 constraints. Problems are: Problem set: 0 solved, 850 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1041/1041 variables, and 301 constraints, problems are : Problem set: 0 solved, 850 unsolved in 20069 ms.
Refiners :[Positive P Invariants (semi-flows): 30/30 constraints, State Equation: 116/116 constraints, ReadFeed: 70/70 constraints, PredecessorRefiner: 850/85 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 41547ms problems are : Problem set: 0 solved, 850 unsolved
Search for dead transitions found 0 dead transitions in 41582ms
[2026-05-23 08:14:20] [INFO ] Invariant cache hit.
[2026-05-23 08:14:20] [INFO ] Implicit Places using invariants in 201 ms returned []
[2026-05-23 08:14:20] [INFO ] Invariant cache hit.
[2026-05-23 08:14:20] [INFO ] State equation strengthened by 70 read => feed constraints.
[2026-05-23 08:14:21] [INFO ] Implicit Places using invariants and state equation in 1042 ms returned []
Implicit Place search using SMT with State Equation took 1248 ms to find 0 implicit places.
Skipped dead transition search.
Starting structural reductions in LIVENESS mode, iteration 1 : 116/146 places, 925/927 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 42979 ms. Remains : 116/146 places, 925/927 transitions.
Discarding 392 transitions out of 925. Remains 533
Initial state reduction rules removed 5 formulas.
[2026-05-23 08:14:22] [INFO ] Flatten gal took : 244 ms
[2026-05-23 08:14:22] [INFO ] Flatten gal took : 110 ms
RANDOM walk for 40001 steps (755 resets) in 2696 ms. (14 steps per ms) remains 0/528 properties
[2026-05-23 08:14:22] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality18239554663564790117.gal : 29 ms
[2026-05-23 08:14:22] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17980512446830582731.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/ReachabilityCardinality18239554663564790117.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17980512446830582731.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 533 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 44282 ms.

BK_STOP 1779524062631

--------------------
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="CopsAndRobbers-PT-KFL028N008K002X005"
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 CopsAndRobbers-PT-KFL028N008K002X005, 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 r072-tall-177946970400327"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CopsAndRobbers-PT-KFL028N008K002X005.tgz
mv CopsAndRobbers-PT-KFL028N008K002X005 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 ;