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.r002-oct2-177944366400557.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)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is AutoFlight-PT-24a, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r002-oct2-177944366400557
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 636K
-rw-r--r-- 1 mcc users 7.9K Mar 5 16:32 CTLCardinality.txt
-rw-r--r-- 1 mcc users 89K Mar 5 16:32 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Mar 5 16:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 5 16:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 07:15 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:15 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:15 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 07:15 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 5 16:32 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 131K Mar 5 16:32 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.4K Mar 5 16:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 60K Mar 5 16:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 169K 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 AutoFlight-PT-24a-UpperBounds-00
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-01
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-02
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-03
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-04
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-05
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-06
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-07
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-08
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-09
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-10
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-11
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-12
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-13
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-14
FORMULA_NAME AutoFlight-PT-24a-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779494828820

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutoFlight-PT-24a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202604301425
[2026-05-23 00:07:09] [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]
[2026-05-23 00:07:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 00:07:10] [INFO ] Load time of PNML (sax parser for PT used): 105 ms
[2026-05-23 00:07:10] [INFO ] Transformed 607 places.
[2026-05-23 00:07:10] [INFO ] Transformed 605 transitions.
[2026-05-23 00:07:10] [INFO ] Found NUPN structural information;
[2026-05-23 00:07:10] [INFO ] Parsed PT model containing 607 places and 605 transitions and 1940 arcs in 200 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 6 ms.
Ensure Unique test removed 120 transitions
Reduce redundant transitions removed 120 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2257799307049148003.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-5283089342228724369.kers'
[2026-05-23 00:07:10] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2257799307049148003.kers, --Pflows, --basisKERS=/tmp/petrispot-output-5283089342228724369.kers]
Culling duplicate invariants (modulo rational): removing 48 columns.
Culled 48 columns in 0 ms.
// Phase 1: matrix 485 rows 559 cols 1412 entries
Finished phase 1 with 433 SingleSign rule and 26 generalized
[2026-05-23 00:07:10] [INFO ] Computed 148 invariants in 3 ms
Computed 148 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-5283089342228724369.kers
Total runtime 5 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (110 resets) in 107 ms. (92 steps per ms)
FORMULA AutoFlight-PT-24a-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-24a-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 10001 steps (3 resets) in 32 ms. (303 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-23 00:07:10] [INFO ] Invariant cache hit.
[2026-05-23 00:07:10] [INFO ] [Real]Absence check using 147 positive place invariants in 38 ms returned sat
[2026-05-23 00:07:10] [INFO ] [Real]Absence check using 147 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 00:07:10] [INFO ] [Real]Absence check using state equation in 180 ms returned sat
[2026-05-23 00:07:11] [INFO ] State equation strengthened by 120 read => feed constraints.
[2026-05-23 00:07:11] [INFO ] [Real]Added 120 Read/Feed constraints in 11 ms returned sat
[2026-05-23 00:07:11] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 00:07:11] [INFO ] [Nat]Absence check using 147 positive place invariants in 34 ms returned sat
[2026-05-23 00:07:11] [INFO ] [Nat]Absence check using 147 positive and 1 generalized place invariants in 1 ms returned sat
[2026-05-23 00:07:11] [INFO ] [Nat]Absence check using state equation in 148 ms returned sat
[2026-05-23 00:07:11] [INFO ] [Nat]Added 120 Read/Feed constraints in 13 ms returned sat
[2026-05-23 00:07:11] [INFO ] Computed and/alt/rep : 432/888/432 causal constraints (skipped 52 transitions) in 24 ms.
[2026-05-23 00:07:16] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 0
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:308)
at fr.lip6.move.gal.structural.smt.SMTTrapUtils.refineWithTraps(SMTTrapUtils.java:177)
at fr.lip6.move.gal.structural.smt.DeadlockTester.refineWithCausalOrder(DeadlockTester.java:1134)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:881)
at fr.lip6.move.gal.structural.smt.DeadlockTester.findStructuralMaxWithSMT(DeadlockTester.java:2280)
at fr.lip6.move.gal.application.solver.UpperBoundsSolver.applyReductions(UpperBoundsSolver.java:207)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:803)
at fr.lip6.move.gal.application.Application.start(Application.java:195)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:44)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:219)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:149)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:115)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:467)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:298)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:615)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:563)
at org.eclipse.equinox.launcher.Main.run(Main.java:1415)
at org.eclipse.equinox.launcher.Main.main(Main.java:1387)
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 607 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p47) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 607/607 places, 484/484 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 70 transitions
Trivial Post-agglo rules discarded 70 transitions
Performed 70 trivial Post agglomeration. Transition count delta: 70
Iterating post reduction 0 with 70 rules applied. Total rules applied 70 place count 607 transition count 414
Reduce places removed 70 places and 0 transitions.
Iterating post reduction 1 with 70 rules applied. Total rules applied 140 place count 537 transition count 414
Performed 26 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 26 Pre rules applied. Total rules applied 140 place count 537 transition count 388
Deduced a syphon composed of 26 places in 0 ms
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 2 with 52 rules applied. Total rules applied 192 place count 511 transition count 388
Performed 47 Post agglomeration using F-continuation condition.Transition count delta: 47
Deduced a syphon composed of 47 places in 1 ms
Reduce places removed 47 places and 0 transitions.
Iterating global reduction 2 with 94 rules applied. Total rules applied 286 place count 464 transition count 341
Free-agglomeration rule applied 48 times.
Iterating global reduction 2 with 48 rules applied. Total rules applied 334 place count 464 transition count 293
Reduce places removed 48 places and 0 transitions.
Iterating post reduction 2 with 48 rules applied. Total rules applied 382 place count 416 transition count 293
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 3 with 1 rules applied. Total rules applied 383 place count 415 transition count 292
Reduce places removed 119 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 210 transitions
Trivial Post-agglo rules discarded 210 transitions
Performed 210 trivial Post agglomeration. Transition count delta: 210
Iterating post reduction 3 with 329 rules applied. Total rules applied 712 place count 296 transition count 82
Reduce places removed 210 places and 0 transitions.
Iterating post reduction 4 with 210 rules applied. Total rules applied 922 place count 86 transition count 82
Performed 28 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 28 Pre rules applied. Total rules applied 922 place count 86 transition count 54
Deduced a syphon composed of 28 places in 1 ms
Reduce places removed 28 places and 0 transitions.
Iterating global reduction 5 with 56 rules applied. Total rules applied 978 place count 58 transition count 54
Applied a total of 978 rules in 177 ms. Remains 58 /607 variables (removed 549) and now considering 54/484 (removed 430) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 187 ms. Remains : 58/607 places, 54/484 transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13306090251515702683.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7778554203884865069.kers'
[2026-05-23 00:07:16] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13306090251515702683.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7778554203884865069.kers]
Culling duplicate invariants (modulo rational): removing 26 columns.
Culled 26 columns in 0 ms.
// Phase 1: matrix 54 rows 32 cols 113 entries
Finished phase 1 with 29 SingleSign rule and 0 generalized
[2026-05-23 00:07:16] [INFO ] Computed 29 invariants in 0 ms
Computed 29 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-7778554203884865069.kers
Total runtime 1 ms.
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (12531 resets) in 3314 ms. (301 steps per ms)
FORMULA AutoFlight-PT-24a-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (918 resets) in 781 ms. (1278 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 10481 ms.

BK_STOP 1779494840548

--------------------
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="AutoFlight-PT-24a"
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 AutoFlight-PT-24a, 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 r002-oct2-177944366400557"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-24a.tgz
mv AutoFlight-PT-24a 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 ;