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.r114-smll-177955740300029.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 DoubleLock-PT-p2s1, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r114-smll-177955740300029
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 540K
-rw-r--r-- 1 mcc users 6.7K Mar 6 18:11 CTLCardinality.txt
-rw-r--r-- 1 mcc users 73K Mar 6 18:11 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K Mar 6 18:10 CTLFireability.txt
-rw-r--r-- 1 mcc users 40K Mar 6 18:10 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 09:39 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K Mar 15 09:39 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 09:39 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:39 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.4K Mar 6 18:11 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 97K Mar 6 18:11 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 6 18:11 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 104K Mar 6 18:11 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:39 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 09:39 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 97K 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 positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-00
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-01
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-02
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-03
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-04
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-05
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-06
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-07
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-08
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-09
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-10
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-11
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-12
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-13
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-14
FORMULA_NAME DoubleLock-PT-p2s1-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779597716287

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DoubleLock-PT-p2s1
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-24 04:41:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-24 04:41:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 04:41:59] [INFO ] Load time of PNML (sax parser for PT used): 176 ms
[2026-05-24 04:41:59] [INFO ] Transformed 64 places.
[2026-05-24 04:41:59] [INFO ] Transformed 212 transitions.
[2026-05-24 04:41:59] [INFO ] Parsed PT model containing 64 places and 212 transitions and 860 arcs in 371 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 13 ms.
Deduced a syphon composed of 8 places in 2 ms
Reduce places removed 8 places and 8 transitions.
FORMULA DoubleLock-PT-p2s1-UpperBounds-02 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-7761738160814087945.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-10155813932118547864.kers'
[2026-05-24 04:41:59] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-7761738160814087945.kers, --Pflows, --basisKERS=/tmp/petrispot-output-10155813932118547864.kers]
Normalized transition count is 152 out of 204 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 152 rows 55 cols 550 entries
Finished phase 1 with 52 SingleSign rule and 0 generalized
[2026-05-24 04:41:59] [INFO ] Computed 4 invariants in 1 ms
Computed 4 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-10155813932118547864.kers
Total runtime 3 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10] Max Struct:[10, 1, 1, +inf, 1, 1, 1, +inf, 1, 1, 1, +inf, +inf, 1, 10]
FORMULA DoubleLock-PT-p2s1-UpperBounds-15 10 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10006 steps (59 resets) in 98 ms. (101 steps per ms)
FORMULA DoubleLock-PT-p2s1-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-00 10 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (32 resets) in 131 ms. (303 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[17, 5, 7, 8] Max Struct:[+inf, +inf, +inf, +inf]
[2026-05-24 04:41:59] [INFO ] Flow matrix only has 152 transitions (discarded 52 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1441817852912723318.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9052851749129195551.kers'
[2026-05-24 04:41:59] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1441817852912723318.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9052851749129195551.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 152 rows 55 cols 550 entries
Finished phase 1 with 52 SingleSign rule and 0 generalized
[2026-05-24 04:41:59] [INFO ] Computed 4 invariants in 1 ms
Computed 4 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-9052851749129195551.kers
Total runtime 2 ms.
[2026-05-24 04:42:00] [INFO ] [Real]Absence check using 3 positive place invariants in 13 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 5 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Real]Absence check using state equation in 145 ms returned sat
[2026-05-24 04:42:00] [INFO ] State equation strengthened by 27 read => feed constraints.
[2026-05-24 04:42:00] [INFO ] [Real]Added 27 Read/Feed constraints in 37 ms returned sat
[2026-05-24 04:42:00] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:42:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 4 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 2 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Nat]Absence check using state equation in 112 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Nat]Added 27 Read/Feed constraints in 19 ms returned sat
[2026-05-24 04:42:00] [INFO ] Computed and/alt/rep : 67/466/67 causal constraints (skipped 83 transitions) in 62 ms.
[2026-05-24 04:42:00] [INFO ] Added : 9 causal constraints over 2 iterations in 156 ms. Result :sat
Minimization took 59 ms.
[2026-05-24 04:42:00] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Real]Absence check using state equation in 92 ms returned sat
[2026-05-24 04:42:00] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:42:00] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 04:42:00] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Nat]Absence check using state equation in 80 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Nat]Added 27 Read/Feed constraints in 15 ms returned sat
[2026-05-24 04:42:01] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 271 ms
[2026-05-24 04:42:01] [INFO ] Computed and/alt/rep : 67/466/67 causal constraints (skipped 83 transitions) in 27 ms.
[2026-05-24 04:42:01] [INFO ] Added : 19 causal constraints over 4 iterations in 142 ms. Result :sat
Minimization took 84 ms.
[2026-05-24 04:42:01] [INFO ] [Real]Absence check using 3 positive place invariants in 2 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Real]Absence check using state equation in 79 ms returned sat
[2026-05-24 04:42:01] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:42:01] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Nat]Absence check using state equation in 74 ms returned sat
[2026-05-24 04:42:01] [INFO ] [Nat]Added 27 Read/Feed constraints in 12 ms returned sat
[2026-05-24 04:42:01] [INFO ] Computed and/alt/rep : 67/466/67 causal constraints (skipped 83 transitions) in 24 ms.
[2026-05-24 04:42:01] [INFO ] Added : 17 causal constraints over 4 iterations in 124 ms. Result :sat
Minimization took 90 ms.
[2026-05-24 04:42:02] [INFO ] [Real]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 04:42:02] [INFO ] [Real]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-24 04:42:02] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2026-05-24 04:42:02] [INFO ] [Real]Added 27 Read/Feed constraints in 12 ms returned sat
[2026-05-24 04:42:02] [INFO ] Solution in real domain found non-integer solution.
[2026-05-24 04:42:02] [INFO ] [Nat]Absence check using 3 positive place invariants in 3 ms returned sat
[2026-05-24 04:42:02] [INFO ] [Nat]Absence check using 3 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-24 04:42:02] [INFO ] [Nat]Absence check using state equation in 66 ms returned sat
[2026-05-24 04:42:02] [INFO ] [Nat]Added 27 Read/Feed constraints in 14 ms returned sat
[2026-05-24 04:42:02] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 244 ms
[2026-05-24 04:42:02] [INFO ] Computed and/alt/rep : 67/466/67 causal constraints (skipped 83 transitions) in 26 ms.
[2026-05-24 04:42:02] [INFO ] Added : 8 causal constraints over 3 iterations in 114 ms. Result :sat
Minimization took 81 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[17, 5, 7, 8] Max Struct:[+inf, +inf, +inf, +inf]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[17, 5, 7, 8] Max Struct:[+inf, +inf, +inf, +inf]
Support contains 4 out of 56 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 56/56 places, 204/204 transitions.
Graph (complete) has 357 edges and 56 vertex of which 52 are kept as prefixes of interest. Removing 4 places using SCC suffix rule.2 ms
Discarding 4 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 3 place count 52 transition count 202
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 4 place count 51 transition count 198
Iterating global reduction 1 with 1 rules applied. Total rules applied 5 place count 51 transition count 198
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 6 place count 50 transition count 194
Iterating global reduction 1 with 1 rules applied. Total rules applied 7 place count 50 transition count 194
Applied a total of 7 rules in 47 ms. Remains 50 /56 variables (removed 6) and now considering 194/204 (removed 10) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 59 ms. Remains : 50/56 places, 194/204 transitions.
[2026-05-24 04:42:02] [INFO ] Flow matrix only has 145 transitions (discarded 49 similar events)
findPositiveTsemiflow completed in 74 ms - Found solution {12=1, 25=1, 87=1, 88=1, 133=2} and attempted to minimize in 0 ms success -> {12=1, 25=1, 93=1, 94=1, 141=2}
FORMULA DoubleLock-PT-p2s1-UpperBounds-13 +inf TECHNIQUES TOPOLOGICAL COVER_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-12 +inf TECHNIQUES TOPOLOGICAL COVER_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-04 +inf TECHNIQUES TOPOLOGICAL COVER_WALK
FORMULA DoubleLock-PT-p2s1-UpperBounds-08 +inf TECHNIQUES TOPOLOGICAL COVER_WALK
Current structural bounds on expressions (after cover walk) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 5422 ms.

BK_STOP 1779597724244

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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 UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="DoubleLock-PT-p2s1"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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 DoubleLock-PT-p2s1, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r114-smll-177955740300029"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DoubleLock-PT-p2s1.tgz
mv DoubleLock-PT-p2s1 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;