Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r184-oct2-177969023300127.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 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 MedleyA-PT-14, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-oct2-177969023300127
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 376K
-rw-r--r-- 1 mcc users 6.4K Mar 7 18:18 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 7 18:18 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K Mar 7 18:18 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K Mar 7 18:18 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 11:29 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 11:29 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 11:29 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 11:29 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.7K Mar 7 18:18 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 49K Mar 7 18:18 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Mar 7 18:18 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 53K Mar 7 18:18 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 11:29 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 11:29 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 46K 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 1779857445966

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=MedleyA-PT-14
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-27 04:50:47] [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]
[2026-05-27 04:50:47] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-27 04:50:47] [INFO ] Load time of PNML (sax parser for PT used): 84 ms
[2026-05-27 04:50:47] [INFO ] Transformed 184 places.
[2026-05-27 04:50:47] [INFO ] Transformed 178 transitions.
[2026-05-27 04:50:47] [INFO ] Found NUPN structural information;
[2026-05-27 04:50:47] [INFO ] Parsed PT model containing 184 places and 178 transitions and 492 arcs in 205 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 184/184 places, 178/178 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 6 transitions
Trivial Post-agglo rules discarded 6 transitions
Performed 6 trivial Post agglomeration. Transition count delta: 6
Iterating post reduction 0 with 6 rules applied. Total rules applied 6 place count 184 transition count 172
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 1 with 6 rules applied. Total rules applied 12 place count 178 transition count 172
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 7 Pre rules applied. Total rules applied 12 place count 178 transition count 165
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 2 with 14 rules applied. Total rules applied 26 place count 171 transition count 165
Performed 69 Post agglomeration using F-continuation condition.Transition count delta: 69
Deduced a syphon composed of 69 places in 1 ms
Reduce places removed 69 places and 0 transitions.
Iterating global reduction 2 with 138 rules applied. Total rules applied 164 place count 102 transition count 96
Performed 13 Post agglomeration using F-continuation condition.Transition count delta: -40
Deduced a syphon composed of 13 places in 1 ms
Reduce places removed 13 places and 0 transitions.
Iterating global reduction 2 with 26 rules applied. Total rules applied 190 place count 89 transition count 136
Applied a total of 190 rules in 79 ms. Remains 89 /184 variables (removed 95) and now considering 136/178 (removed 42) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-11634143259806999779.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11328274720579615443.kers'
[2026-05-27 04:50:47] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11634143259806999779.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11328274720579615443.kers]
Normalized transition count is 135 out of 136 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 135 rows 88 cols 614 entries
Finished phase 1 with 50 SingleSign rule and 15 generalized
[2026-05-27 04:50:47] [INFO ] Computed 24 invariants in 1 ms
Computed 24 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-11328274720579615443.kers
Total runtime 1 ms.
[2026-05-27 04:50:48] [INFO ] Implicit Places using invariants in 405 ms returned [8, 23, 33, 48, 58, 73, 76]
Discarding 7 places :
Implicit Place search using SMT only with invariants took 442 ms to find 7 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 82/184 places, 136/178 transitions.
Graph (trivial) has 7 edges and 82 vertex of which 4 / 82 are part of one of the 2 SCC in 2 ms
Free SCC test removed 2 places
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 3 Pre rules applied. Total rules applied 1 place count 80 transition count 131
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 7 place count 77 transition count 131
Performed 4 Post agglomeration using F-continuation condition.Transition count delta: 4
Deduced a syphon composed of 4 places in 0 ms
Reduce places removed 4 places and 0 transitions.
Iterating global reduction 0 with 8 rules applied. Total rules applied 15 place count 73 transition count 127
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -6
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 21 place count 70 transition count 133
Applied a total of 21 rules in 10 ms. Remains 70 /82 variables (removed 12) and now considering 133/136 (removed 3) transitions.
[2026-05-27 04:50:48] [INFO ] Flow matrix only has 131 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1515832937415947320.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11207116068988085675.kers'
[2026-05-27 04:50:48] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1515832937415947320.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11207116068988085675.kers]
Normalized transition count is 130 out of 131 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 130 rows 69 cols 605 entries
Finished phase 1 with 47 SingleSign rule and 6 generalized
[2026-05-27 04:50:48] [INFO ] Computed 17 invariants in 0 ms
Computed 17 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-11207116068988085675.kers
Total runtime 1 ms.
[2026-05-27 04:50:48] [INFO ] Implicit Places using invariants in 190 ms returned []
[2026-05-27 04:50:48] [INFO ] Flow matrix only has 131 transitions (discarded 2 similar events)
[2026-05-27 04:50:48] [INFO ] Invariant cache hit.
[2026-05-27 04:50:48] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-27 04:50:48] [INFO ] Implicit Places using invariants and state equation in 330 ms returned []
Implicit Place search using SMT with State Equation took 522 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 70/184 places, 133/178 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 1092 ms. Remains : 70/184 places, 133/178 transitions.
Discarding 78 transitions out of 133. Remains 55
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (3752 resets) in 1360 ms. (29 steps per ms) remains 6/54 properties
BEST_FIRST walk for 40004 steps (786 resets) in 302 ms. (132 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (783 resets) in 215 ms. (185 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40003 steps (783 resets) in 232 ms. (171 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (807 resets) in 220 ms. (181 steps per ms) remains 6/6 properties
[2026-05-27 04:50:49] [INFO ] Flatten gal took : 149 ms
BEST_FIRST walk for 40004 steps (788 resets) in 171 ms. (232 steps per ms) remains 6/6 properties
[2026-05-27 04:50:49] [INFO ] Flatten gal took : 21 ms
[2026-05-27 04:50:49] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13113311840144521276.gal : 30 ms
BEST_FIRST walk for 40004 steps (782 resets) in 137 ms. (289 steps per ms) remains 6/6 properties
[2026-05-27 04:50:50] [INFO ] Flow matrix only has 131 transitions (discarded 2 similar events)
[2026-05-27 04:50:50] [INFO ] Invariant cache hit.
[2026-05-27 04:50:50] [INFO ] State equation strengthened by 12 read => feed constraints.
[2026-05-27 04:50:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14830314621784063930.prop : 2 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/ReachabilityCardinality13113311840144521276.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14830314621784063930.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
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 9/9 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Loading property file /tmp/ReachabilityCardinality14830314621784063930.prop.
SDD proceeding with computation,6 properties remain. new max is 4
SDD size :1 after 9
SDD proceeding with computation,6 properties remain. new max is 8
SDD size :9 after 92
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :92 after 101
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :101 after 151
SDD proceeding with computation,6 properties remain. new max is 64
SDD size :151 after 305
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :305 after 597
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :597 after 3993
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :3993 after 15617
At refinement iteration 1 (INCLUDED_ONLY) 0/9 variables, 0/9 constraints. Problems are: Problem set: 0 solved, 6 unsolved
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,145377,0.13479,7528,2,1218,13,11138,12,0,427,11560,0
Total reachable state count : 145377

Verifying 6 reachability properties.
Reachability property qltransition_26 does not hold.
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL INITIAL_STATE
At refinement iteration 2 (OVERLAPS) 25/34 variables, 6/15 constraints. Problems are: Problem set: 0 solved, 6 unsolved
ITS tools runner thread asked to quit. Dying gracefully.
At refinement iteration 3 (INCLUDED_ONLY) 0/34 variables, 25/40 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/34 variables, 0/40 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 5 (OVERLAPS) 22/56 variables, 7/47 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/56 variables, 22/69 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/56 variables, 0/69 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 8 (OVERLAPS) 14/70 variables, 4/73 constraints. Problems are: Problem set: 0 solved, 6 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/70 variables, 14/87 constraints. Problems are: Problem set: 0 solved, 6 unsolved
Problem qltransition_26 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING SMT_REFINEMENT TOPOLOGICAL INITIAL_STATE
SMT process timed out in 820ms, After SMT, problems are : Problem set: 1 solved, 5 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 9 out of 70 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 70/70 places, 133/133 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 3 place count 70 transition count 130
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 3 place count 70 transition count 129
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 5 place count 69 transition count 129
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 11 place count 63 transition count 111
Iterating global reduction 1 with 6 rules applied. Total rules applied 17 place count 63 transition count 111
Free-agglomeration rule applied 1 times.
Iterating global reduction 1 with 1 rules applied. Total rules applied 18 place count 63 transition count 110
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 19 place count 62 transition count 110
Partial Free-agglomeration rule applied 6 times.
Drop transitions (Partial Free agglomeration) removed 6 transitions
Iterating global reduction 2 with 6 rules applied. Total rules applied 25 place count 62 transition count 110
Applied a total of 25 rules in 33 ms. Remains 62 /70 variables (removed 8) and now considering 110/133 (removed 23) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 34 ms. Remains : 62/70 places, 110/133 transitions.
Total runtime 3359 ms.

BK_STOP 1779857451310

--------------------
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="MedleyA-PT-14"
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 MedleyA-PT-14, 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 r184-oct2-177969023300127"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/MedleyA-PT-14.tgz
mv MedleyA-PT-14 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 ;