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.r354-tall-178024402800093.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 LastZero-PT-N10, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800093
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 904K
-rw-r--r-- 1 mcc users 6.1K May 27 10:27 CTLCardinality.txt
-rw-r--r-- 1 mcc users 56K May 27 10:27 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K May 27 10:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K May 27 10:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Jun 16 12:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Jun 16 12:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Jun 16 12:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Jun 16 12:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 12K May 27 10:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K May 27 10:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.5K May 27 10:27 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K May 27 10:27 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 16 12:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 16 12:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 4 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 486K Jun 10 11:58 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 LastZero-PT-N10-UpperBounds-00
FORMULA_NAME LastZero-PT-N10-UpperBounds-01
FORMULA_NAME LastZero-PT-N10-UpperBounds-02
FORMULA_NAME LastZero-PT-N10-UpperBounds-03
FORMULA_NAME LastZero-PT-N10-UpperBounds-04
FORMULA_NAME LastZero-PT-N10-UpperBounds-05
FORMULA_NAME LastZero-PT-N10-UpperBounds-06
FORMULA_NAME LastZero-PT-N10-UpperBounds-07
FORMULA_NAME LastZero-PT-N10-UpperBounds-08
FORMULA_NAME LastZero-PT-N10-UpperBounds-09
FORMULA_NAME LastZero-PT-N10-UpperBounds-10
FORMULA_NAME LastZero-PT-N10-UpperBounds-11
FORMULA_NAME LastZero-PT-N10-UpperBounds-12
FORMULA_NAME LastZero-PT-N10-UpperBounds-13
FORMULA_NAME LastZero-PT-N10-UpperBounds-14
FORMULA_NAME LastZero-PT-N10-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1781643528127

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-PT-N10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-06-16 20:58:49] [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]
[2026-06-16 20:58:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-16 20:58:49] [INFO ] Load time of PNML (sax parser for PT used): 106 ms
[2026-06-16 20:58:49] [INFO ] Transformed 264 places.
[2026-06-16 20:58:49] [INFO ] Transformed 1531 transitions.
[2026-06-16 20:58:49] [INFO ] Parsed PT model containing 264 places and 1531 transitions and 4793 arcs in 204 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Deduced a syphon composed of 122 places in 7 ms
Reduce places removed 122 places and 981 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA LastZero-PT-N10-UpperBounds-00 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-UpperBounds-07 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-UpperBounds-10 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-UpperBounds-11 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-UpperBounds-12 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N10-UpperBounds-14 0 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initially) : Max Seen:[0, 0, 0, 0, 0, 1, 0, 0, 0, 1] Max Struct:[+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, 1, 0, 0, 0, 1] Max Struct:[+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-1724221498375670273.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15178459445047323477.kers'
[2026-06-16 20:58:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1724221498375670273.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15178459445047323477.kers]
Normalized transition count is 505 out of 550 initially.
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 505 rows 140 cols 1339 entries
Finished phase 1 with 130 SingleSign rule and 0 generalized
[2026-06-16 20:58:49] [INFO ] Computed 11 invariants in 1 ms
Computed 11 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-15178459445047323477.kers
Total runtime 2 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 1, 0, 0, 0, 1] Max Struct:[+inf, 1, +inf, 1, 1, +inf, +inf, +inf, 1, 1]
FORMULA LastZero-PT-N10-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10000 steps (322 resets) in 64 ms. (153 steps per ms)
FORMULA LastZero-PT-N10-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA LastZero-PT-N10-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 70006 steps (392 resets) in 84 ms. (823 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 0, 1, 1, 1, 0, 0] Max Struct:[+inf, 1, +inf, +inf, +inf, +inf, 1]
[2026-06-16 20:58:49] [INFO ] Flow matrix only has 505 transitions (discarded 45 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-394193868824147039.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3283803353006235860.kers'
[2026-06-16 20:58:49] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-394193868824147039.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3283803353006235860.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 505 rows 140 cols 1339 entries
Finished phase 1 with 130 SingleSign rule and 0 generalized
[2026-06-16 20:58:49] [INFO ] Computed 11 invariants in 1 ms
Computed 11 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-3283803353006235860.kers
Total runtime 2 ms.
[2026-06-16 20:58:49] [INFO ] [Real]Absence check using 11 positive place invariants in 11 ms returned sat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using state equation in 124 ms returned unsat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using state equation in 87 ms returned sat
[2026-06-16 20:58:50] [INFO ] State equation strengthened by 110 read => feed constraints.
[2026-06-16 20:58:50] [INFO ] [Real]Added 110 Read/Feed constraints in 17 ms returned sat
[2026-06-16 20:58:50] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:58:50] [INFO ] [Nat]Absence check using 11 positive place invariants in 2 ms returned sat
[2026-06-16 20:58:50] [INFO ] [Nat]Absence check using state equation in 81 ms returned sat
[2026-06-16 20:58:50] [INFO ] [Nat]Added 110 Read/Feed constraints in 15 ms returned sat
[2026-06-16 20:58:50] [INFO ] Computed and/alt/rep : 307/1848/306 causal constraints (skipped 189 transitions) in 41 ms.
[2026-06-16 20:58:50] [INFO ] Added : 9 causal constraints over 2 iterations in 149 ms. Result :sat
Minimization took 44 ms.
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using state equation in 73 ms returned unsat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using state equation in 69 ms returned unsat
[2026-06-16 20:58:50] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Real]Absence check using state equation in 73 ms returned unsat
[2026-06-16 20:58:51] [INFO ] [Real]Absence check using 11 positive place invariants in 3 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Real]Absence check using state equation in 76 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Real]Added 110 Read/Feed constraints in 13 ms returned sat
[2026-06-16 20:58:51] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:58:51] [INFO ] [Nat]Absence check using 11 positive place invariants in 6 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Nat]Absence check using state equation in 69 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Nat]Added 110 Read/Feed constraints in 16 ms returned sat
[2026-06-16 20:58:51] [INFO ] Computed and/alt/rep : 307/1848/306 causal constraints (skipped 189 transitions) in 32 ms.
[2026-06-16 20:58:51] [INFO ] Added : 14 causal constraints over 3 iterations in 144 ms. Result :sat
Minimization took 41 ms.
[2026-06-16 20:58:51] [INFO ] [Real]Absence check using 11 positive place invariants in 4 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Real]Absence check using state equation in 239 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Real]Added 110 Read/Feed constraints in 13 ms returned sat
[2026-06-16 20:58:51] [INFO ] Solution in real domain found non-integer solution.
[2026-06-16 20:58:51] [INFO ] [Nat]Absence check using 11 positive place invariants in 2 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Nat]Absence check using state equation in 86 ms returned sat
[2026-06-16 20:58:51] [INFO ] [Nat]Added 110 Read/Feed constraints in 11 ms returned sat
[2026-06-16 20:58:52] [INFO ] Computed and/alt/rep : 307/1848/306 causal constraints (skipped 189 transitions) in 45 ms.
[2026-06-16 20:58:52] [INFO ] Added : 13 causal constraints over 3 iterations in 149 ms. Result :sat
Minimization took 41 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[1, 0, 1, 1, 1, 0, 0] Max Struct:[1, 1, 1, 1, 1, +inf, 1]
FORMULA LastZero-PT-N10-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N10-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N10-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N10-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA LastZero-PT-N10-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1] Max Struct:[1, +inf]
FORMULA LastZero-PT-N10-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL PARIKH_GUIDED_WALK
Support contains 1 out of 141 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 141/141 places, 550/550 transitions.
Graph (complete) has 614 edges and 141 vertex of which 108 are kept as prefixes of interest. Removing 33 places using SCC suffix rule.2 ms
Discarding 33 places :
Also discarding 120 output transitions
Drop transitions (Output transitions of discarded places.) removed 120 transitions
Drop transitions (Empty/Sink Transition effects.) removed 55 transitions
Reduce isomorphic transitions removed 55 transitions.
Iterating post reduction 0 with 55 rules applied. Total rules applied 56 place count 108 transition count 375
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 56 place count 108 transition count 374
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 58 place count 107 transition count 374
Applied a total of 58 rules in 44 ms. Remains 107 /141 variables (removed 34) and now considering 374/550 (removed 176) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 107/141 places, 374/550 transitions.
findPositiveTsemiflow completed in 144 ms - Net is bounded UNSAT
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-3418383522425044227.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9977015657388841344.kers'
[2026-06-16 20:58:52] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-3418383522425044227.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9977015657388841344.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 374 rows 106 cols 987 entries
Finished phase 1 with 98 SingleSign rule and 0 generalized
[2026-06-16 20:58:52] [INFO ] Computed 9 invariants in 0 ms
Computed 9 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-9977015657388841344.kers
Total runtime 1 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[1] Max Struct:[+inf]
RANDOM walk for 1000000 steps (55555 resets) in 1381 ms. (723 steps per ms)
BEST_FIRST walk for 1000001 steps (8641 resets) in 479 ms. (2083 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1] Max Struct:[+inf]
[2026-06-16 20:58:54] [INFO ] Invariant cache hit.
[2026-06-16 20:58:54] [INFO ] [Real]Absence check using 9 positive place invariants in 2 ms returned sat
[2026-06-16 20:58:54] [INFO ] [Real]Absence check using state equation in 47 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1] Max Struct:[1]
FORMULA LastZero-PT-N10-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 5188 ms.

BK_STOP 1781643534493

--------------------
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="LastZero-PT-N10"
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 LastZero-PT-N10, 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 r354-tall-178024402800093"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N10.tgz
mv LastZero-PT-N10 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 ;