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.r056-smll-177946903000272.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 CloudDeployment-PT-2a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r056-smll-177946903000272
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 452K
-rw-r--r-- 1 mcc users 6.5K Mar 6 11:14 CTLCardinality.txt
-rw-r--r-- 1 mcc users 66K Mar 6 11:14 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Mar 6 11:14 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 6 11:14 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 08:13 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 08:13 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:13 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:13 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.1K Mar 6 11:14 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 94K Mar 6 11:14 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.7K Mar 6 11:14 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 65K Mar 6 11:14 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:13 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:13 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 51K 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 1779477902878

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CloudDeployment-PT-2a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-22 19:25:05] [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]
[2026-05-22 19:25:05] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 19:25:05] [INFO ] Load time of PNML (sax parser for PT used): 143 ms
[2026-05-22 19:25:05] [INFO ] Transformed 69 places.
[2026-05-22 19:25:05] [INFO ] Transformed 174 transitions.
[2026-05-22 19:25:05] [INFO ] Found NUPN structural information;
[2026-05-22 19:25:05] [INFO ] Parsed PT model containing 69 places and 174 transitions and 821 arcs in 366 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 69/69 places, 174/174 transitions.
Graph (trivial) has 89 edges and 69 vertex of which 20 / 69 are part of one of the 6 SCC in 13 ms
Free SCC test removed 14 places
Ensure Unique test removed 46 transitions
Reduce isomorphic transitions removed 46 transitions.
Ensure Unique test removed 4 places
Iterating post reduction 0 with 4 rules applied. Total rules applied 5 place count 51 transition count 128
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 1 with 12 rules applied. Total rules applied 17 place count 45 transition count 134
Applied a total of 17 rules in 88 ms. Remains 45 /69 variables (removed 24) and now considering 134/174 (removed 40) transitions.
[2026-05-22 19:25:05] [INFO ] Flow matrix only has 72 transitions (discarded 62 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-12565487423867237008.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16688959475688780637.kers'
[2026-05-22 19:25:06] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-12565487423867237008.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16688959475688780637.kers]
Normalized transition count is 71 out of 72 initially.
Culling duplicate invariants (modulo rational): removing 3 columns.
Culled 3 columns in 0 ms.
// Phase 1: matrix 71 rows 42 cols 195 entries
Finished phase 1 with 36 SingleSign rule and 1 generalized
[2026-05-22 19:25:06] [INFO ] Computed 8 invariants in 0 ms
Computed 8 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-16688959475688780637.kers
Total runtime 2 ms.
[2026-05-22 19:25:06] [INFO ] Implicit Places using invariants in 478 ms returned []
[2026-05-22 19:25:06] [INFO ] Flow matrix only has 72 transitions (discarded 62 similar events)
[2026-05-22 19:25:06] [INFO ] Invariant cache hit.
[2026-05-22 19:25:06] [INFO ] State equation strengthened by 32 read => feed constraints.
[2026-05-22 19:25:06] [INFO ] Implicit Places using invariants and state equation in 276 ms returned []
Implicit Place search using SMT with State Equation took 826 ms to find 0 implicit places.
Running 133 sub problems to find dead transitions.
[2026-05-22 19:25:06] [INFO ] Flow matrix only has 72 transitions (discarded 62 similar events)
[2026-05-22 19:25:06] [INFO ] Invariant cache hit.
[2026-05-22 19:25:06] [INFO ] State equation strengthened by 32 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 44/44 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 8/52 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/44 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 3 (OVERLAPS) 71/115 variables, 44/96 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/115 variables, 31/127 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/115 variables, 0/127 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 6 (OVERLAPS) 1/116 variables, 1/128 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/116 variables, 1/129 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/116 variables, 0/129 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 9 (OVERLAPS) 1/117 variables, 1/130 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/117 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 11 (OVERLAPS) 0/117 variables, 0/130 constraints. Problems are: Problem set: 0 solved, 133 unsolved
No progress, stopping.
After SMT solving in domain Real declared 117/117 variables, and 130 constraints, problems are : Problem set: 0 solved, 133 unsolved in 10501 ms.
Refiners :[Domain max(s): 45/45 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 45/45 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 133/133 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 133 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/44 variables, 44/44 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/44 variables, 8/52 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/44 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 3 (OVERLAPS) 71/115 variables, 44/96 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/115 variables, 31/127 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/115 variables, 133/260 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/115 variables, 0/260 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 7 (OVERLAPS) 1/116 variables, 1/261 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/116 variables, 1/262 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/116 variables, 0/262 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 10 (OVERLAPS) 1/117 variables, 1/263 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/117 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 133 unsolved
At refinement iteration 12 (OVERLAPS) 0/117 variables, 0/263 constraints. Problems are: Problem set: 0 solved, 133 unsolved
No progress, stopping.
After SMT solving in domain Int declared 117/117 variables, and 263 constraints, problems are : Problem set: 0 solved, 133 unsolved in 13873 ms.
Refiners :[Domain max(s): 45/45 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 45/45 constraints, ReadFeed: 32/32 constraints, PredecessorRefiner: 133/133 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 24574ms problems are : Problem set: 0 solved, 133 unsolved
Search for dead transitions found 0 dead transitions in 24605ms
Starting structural reductions in LIVENESS mode, iteration 1 : 45/69 places, 134/174 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 25601 ms. Remains : 45/69 places, 134/174 transitions.
Discarding 96 transitions out of 134. Remains 38
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (2098 resets) in 1585 ms. (25 steps per ms) remains 2/37 properties
[2026-05-22 19:25:31] [INFO ] Flatten gal took : 73 ms
BEST_FIRST walk for 1595 steps (12 resets) in 41 ms. (37 steps per ms) remains 0/2 properties
[2026-05-22 19:25:31] [INFO ] Flatten gal took : 33 ms
[2026-05-22 19:25:31] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16138808486807519104.gal : 16 ms
[2026-05-22 19:25:32] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15969320796713261706.prop : 1 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/ReachabilityCardinality16138808486807519104.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15969320796713261706.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 38 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 26738 ms.

BK_STOP 1779477932091

--------------------
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="CloudDeployment-PT-2a"
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 CloudDeployment-PT-2a, 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 r056-smll-177946903000272"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudDeployment-PT-2a.tgz
mv CloudDeployment-PT-2a 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 ;