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-177946903000292.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 CloudDeployment-PT-4a, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r056-smll-177946903000292
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 544K
-rw-r--r-- 1 mcc users 7.5K Mar 6 11:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K Mar 6 11:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Mar 6 11:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K Mar 6 11:02 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 08:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Mar 15 08:14 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 08:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.5K Mar 6 11:04 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 72K Mar 6 11:04 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Mar 6 11:04 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 6 11:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:14 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 156K 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 1779478209733

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-4a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-22 19:30:12] [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 19:30:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 19:30:12] [INFO ] Load time of PNML (sax parser for PT used): 212 ms
[2026-05-22 19:30:12] [INFO ] Transformed 141 places.
[2026-05-22 19:30:12] [INFO ] Transformed 475 transitions.
[2026-05-22 19:30:12] [INFO ] Found NUPN structural information;
[2026-05-22 19:30:12] [INFO ] Parsed PT model containing 141 places and 475 transitions and 2657 arcs in 446 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 141/141 places, 475/475 transitions.
Graph (trivial) has 177 edges and 141 vertex of which 40 / 141 are part of one of the 12 SCC in 14 ms
Free SCC test removed 28 places
Ensure Unique test removed 124 transitions
Reduce isomorphic transitions removed 124 transitions.
Ensure Unique test removed 8 places
Iterating post reduction 0 with 8 rules applied. Total rules applied 9 place count 105 transition count 351
Performed 12 Post agglomeration using F-continuation condition.Transition count delta: -28
Deduced a syphon composed of 12 places in 3 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 1 with 24 rules applied. Total rules applied 33 place count 93 transition count 379
Applied a total of 33 rules in 118 ms. Remains 93 /141 variables (removed 48) and now considering 379/475 (removed 96) transitions.
[2026-05-22 19:30:13] [INFO ] Flow matrix only has 178 transitions (discarded 201 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10664593230748101468.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1779465959611971140.kers'
[2026-05-22 19:30:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10664593230748101468.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1779465959611971140.kers]
Normalized transition count is 177 out of 178 initially.
Culling duplicate invariants (modulo rational): removing 7 columns.
Culled 7 columns in 0 ms.
// Phase 1: matrix 177 rows 86 cols 523 entries
Finished phase 1 with 76 SingleSign rule and 1 generalized
[2026-05-22 19:30:13] [INFO ] Computed 16 invariants in 1 ms
Computed 16 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-1779465959611971140.kers
Total runtime 3 ms.
[2026-05-22 19:30:13] [INFO ] Implicit Places using invariants in 632 ms returned []
[2026-05-22 19:30:13] [INFO ] Flow matrix only has 178 transitions (discarded 201 similar events)
[2026-05-22 19:30:13] [INFO ] Invariant cache hit.
[2026-05-22 19:30:13] [INFO ] State equation strengthened by 102 read => feed constraints.
[2026-05-22 19:30:14] [INFO ] Implicit Places using invariants and state equation in 666 ms returned []
Implicit Place search using SMT with State Equation took 1372 ms to find 0 implicit places.
Running 378 sub problems to find dead transitions.
[2026-05-22 19:30:14] [INFO ] Flow matrix only has 178 transitions (discarded 201 similar events)
[2026-05-22 19:30:14] [INFO ] Invariant cache hit.
[2026-05-22 19:30:14] [INFO ] State equation strengthened by 102 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/92 variables, 92/92 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/92 variables, 16/108 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/92 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 3 (OVERLAPS) 177/269 variables, 92/200 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/269 variables, 101/301 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/269 variables, 0/301 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 6 (OVERLAPS) 1/270 variables, 1/302 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/270 variables, 1/303 constraints. Problems are: Problem set: 0 solved, 378 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 270/271 variables, and 303 constraints, problems are : Problem set: 0 solved, 378 unsolved in 30059 ms.
Refiners :[Domain max(s): 93/93 constraints, Generalized P Invariants (flows): 16/16 constraints, State Equation: 93/93 constraints, ReadFeed: 101/102 constraints, PredecessorRefiner: 378/378 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 378 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/92 variables, 92/92 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/92 variables, 16/108 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/92 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 3 (OVERLAPS) 177/269 variables, 92/200 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/269 variables, 101/301 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/269 variables, 378/679 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/269 variables, 0/679 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 7 (OVERLAPS) 1/270 variables, 1/680 constraints. Problems are: Problem set: 0 solved, 378 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/270 variables, 1/681 constraints. Problems are: Problem set: 0 solved, 378 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 270/271 variables, and 681 constraints, problems are : Problem set: 0 solved, 378 unsolved in 30037 ms.
Refiners :[Domain max(s): 93/93 constraints, Generalized P Invariants (flows): 16/16 constraints, State Equation: 93/93 constraints, ReadFeed: 101/102 constraints, PredecessorRefiner: 378/378 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 60656ms problems are : Problem set: 0 solved, 378 unsolved
Search for dead transitions found 0 dead transitions in 60699ms
Starting structural reductions in LIVENESS mode, iteration 1 : 93/141 places, 379/475 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 62285 ms. Remains : 93/141 places, 379/475 transitions.
Discarding 283 transitions out of 379. Remains 96
Initial state reduction rules removed 1 formulas.
[2026-05-22 19:31:16] [INFO ] Flatten gal took : 289 ms
RANDOM walk for 40000 steps (1194 resets) in 3549 ms. (11 steps per ms) remains 5/95 properties
[2026-05-22 19:31:16] [INFO ] Flatten gal took : 89 ms
BEST_FIRST walk for 40004 steps (232 resets) in 297 ms. (134 steps per ms) remains 5/5 properties
[2026-05-22 19:31:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9322790357599050843.gal : 73 ms
BEST_FIRST walk for 40003 steps (118 resets) in 118 ms. (336 steps per ms) remains 1/5 properties
[2026-05-22 19:31:16] [INFO ] Flow matrix only has 178 transitions (discarded 201 similar events)
[2026-05-22 19:31:16] [INFO ] Invariant cache hit.
[2026-05-22 19:31:16] [INFO ] State equation strengthened by 102 read => feed constraints.
[2026-05-22 19:31:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6734497044036552111.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/ReachabilityCardinality9322790357599050843.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6734497044036552111.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 ...328
At refinement iteration 0 (INCLUDED_ONLY) 0/5 variables, 5/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/5 variables, 0/5 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 53/58 variables, 4/9 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Loading property file /tmp/ReachabilityCardinality6734497044036552111.prop.
At refinement iteration 3 (INCLUDED_ONLY) 0/58 variables, 53/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/58 variables, 0/62 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 11
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :11 after 17
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :17 after 19
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :19 after 25
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :25 after 198
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :198 after 240
At refinement iteration 5 (OVERLAPS) 34/92 variables, 12/74 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :240 after 5498
At refinement iteration 6 (INCLUDED_ONLY) 0/92 variables, 34/108 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/92 variables, 0/108 constraints. Problems are: Problem set: 0 solved, 1 unsolved
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :5498 after 72743
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,860473,0.173857,7992,2,712,13,9109,7,0,728,7473,0
Total reachable state count : 860473

Verifying 1 reachability properties.
Reachability property qltransition_55 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_55,1,0.17582,8168,2,94,13,9109,7,0,737,7473,0
After SMT solving in domain Real declared 269/271 variables, and 200 constraints, problems are : Problem set: 1 solved, 0 unsolved in 215 ms.
Refiners :[Domain max(s): 92/93 constraints, Generalized P Invariants (flows): 16/16 constraints, State Equation: 92/93 constraints, ReadFeed: 0/102 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 229ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Able to resolve query QuasiLiveness after proving 96 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 64356 ms.

BK_STOP 1779478276706

--------------------
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-4a"
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-4a, 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-177946903000292"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudDeployment-PT-4a.tgz
mv CloudDeployment-PT-4a 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 ;