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.r040-tall-177946844700422.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 CANConstruction-PT-080, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r040-tall-177946844700422
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 10M
-rw-r--r-- 1 mcc users 9.2K Mar 6 09:02 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 6 09:02 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.1K Mar 6 08:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 59K Mar 6 08:59 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.7K Mar 15 07:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 07:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Mar 15 07:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 07:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 18K Mar 6 09:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 141K Mar 6 09:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 6 09:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K Mar 6 09:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Mar 15 07:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 15 07:52 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 9.5M 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 1779481803253

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CANConstruction-PT-080
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-22 20:30:04] [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 20:30:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 20:30:05] [INFO ] Load time of PNML (sax parser for PT used): 562 ms
[2026-05-22 20:30:05] [INFO ] Transformed 13762 places.
[2026-05-22 20:30:05] [INFO ] Transformed 26240 transitions.
[2026-05-22 20:30:05] [INFO ] Parsed PT model containing 13762 places and 26240 transitions and 78400 arcs in 749 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 13762/13762 places, 26240/26240 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 560 transitions
Trivial Post-agglo rules discarded 560 transitions
Performed 560 trivial Post agglomeration. Transition count delta: 560
Iterating post reduction 0 with 560 rules applied. Total rules applied 560 place count 13762 transition count 25680
Reduce places removed 560 places and 0 transitions.
Iterating post reduction 1 with 560 rules applied. Total rules applied 1120 place count 13202 transition count 25680
Performed 6400 Post agglomeration using F-continuation condition.Transition count delta: 6400
Deduced a syphon composed of 6400 places in 31 ms
Reduce places removed 6400 places and 0 transitions.
Iterating global reduction 2 with 12800 rules applied. Total rules applied 13920 place count 6802 transition count 19280
Applied a total of 13920 rules in 3190 ms. Remains 6802 /13762 variables (removed 6960) and now considering 19280/26240 (removed 6960) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-15449404445830571943.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8351605956321551709.kers'
[2026-05-22 20:30:08] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-15449404445830571943.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8351605956321551709.kers]
Culled 0 columns in 7 ms.
// Phase 1: matrix 19280 rows 6802 cols 38960 entries
Finished phase 1 with 6561 SingleSign rule and 80 generalized
[2026-05-22 20:30:08] [INFO ] Computed 161 invariants in 66 ms
Computed 161 P flows in 67 ms.
Exported basis to /tmp/petrispot-output-8351605956321551709.kers
Total runtime 81 ms.
[2026-05-22 20:30:20] [INFO ] Implicit Places using invariants in 11767 ms returned [5, 11, 17, 23, 29, 35, 41, 47, 53, 59, 65, 71, 77, 83, 89, 95, 101, 107, 113, 119, 125, 131, 137, 143, 149, 155, 161, 167, 173, 179, 185, 191, 197, 203, 209, 215, 221, 227, 233, 239, 245, 251, 257, 263, 269, 275, 281, 287, 293, 299, 305, 311, 317, 323, 329, 335, 341, 347, 353, 359, 365, 371, 377, 383, 389, 395, 401, 407, 413, 419, 425, 431, 437, 443, 449, 455, 461, 467, 473, 479]
Discarding 80 places :
Implicit Place search using SMT only with invariants took 11919 ms to find 80 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 6722/13762 places, 19280/26240 transitions.
Performed 160 Post agglomeration using F-continuation condition.Transition count delta: 160
Deduced a syphon composed of 160 places in 14 ms
Reduce places removed 160 places and 0 transitions.
Iterating global reduction 0 with 320 rules applied. Total rules applied 320 place count 6562 transition count 19120
Applied a total of 320 rules in 556 ms. Remains 6562 /6722 variables (removed 160) and now considering 19120/19280 (removed 160) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-2758553960907726282.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-8955506313317614695.kers'
[2026-05-22 20:30:20] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-2758553960907726282.kers, --Pflows, --basisKERS=/tmp/petrispot-output-8955506313317614695.kers]
Culled 0 columns in 8 ms.
// Phase 1: matrix 19120 rows 6562 cols 44720 entries
Finished phase 1 with 6481 SingleSign rule and 0 generalized
[2026-05-22 20:30:21] [INFO ] Computed 81 invariants in 404 ms
Computed 81 P flows in 405 ms.
Exported basis to /tmp/petrispot-output-8955506313317614695.kers
Total runtime 421 ms.
[2026-05-22 20:30:32] [INFO ] Implicit Places using invariants in 11349 ms returned []
Implicit Place search using SMT only with invariants took 11353 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 6562/13762 places, 19120/26240 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 27038 ms. Remains : 6562/13762 places, 19120/26240 transitions.
Discarding 6320 transitions out of 19120. Remains 12800
Initial state reduction rules removed 80 formulas.
RANDOM walk for 40000 steps (99 resets) in 6927 ms. (5 steps per ms) remains 2132/12720 properties
BEST_FIRST walk for 124 steps (0 resets) in 12 ms. (9 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 14 ms. (8 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 32 ms. (3 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 17 ms. (6 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 16 ms. (7 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 32 ms. (3 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 10 ms. (11 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 16 ms. (7 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 29 ms. (4 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 9 ms. (12 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 8 ms. (13 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 12 ms. (9 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 33 ms. (3 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 16 ms. (7 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 18 ms. (6 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 10 ms. (11 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 12 ms. (9 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 13 ms. (8 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 36 ms. (3 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 10 ms. (11 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 10 ms. (11 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 4 ms. (24 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 4 ms. (24 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 26 ms. (4 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 6 ms. (17 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 11 ms. (10 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 16 ms. (7 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 9 ms. (12 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 10 ms. (11 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 11 ms. (10 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 5 ms. (20 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 7 ms. (15 steps per ms) remains 2132/2132 properties
BEST_FIRST walk for 124 steps (0 resets) in 8 ms. (13 steps per ms) remains 2132/2132 properties
[2026-05-22 20:30:35] [INFO ] Invariant cache hit.
[2026-05-22 20:30:35] [INFO ] Flatten gal took : 823 ms
[2026-05-22 20:30:36] [INFO ] Flatten gal took : 400 ms
[2026-05-22 20:30:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality10738619247684030016.gal : 173 ms
[2026-05-22 20:30:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14235426459258160327.prop : 8 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/ReachabilityCardinality10738619247684030016.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14235426459258160327.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
[2026-05-22 20:30:36] [INFO ] State equation strengthened by 19040 read => feed constraints.
Loading property file /tmp/ReachabilityCardinality14235426459258160327.prop.
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2164/25682 variables, and 0 constraints, problems are : Problem set: 0 solved, 2132 unsolved in 5061 ms.
Refiners :[Positive P Invariants (semi-flows): 0/81 constraints, State Equation: 0/6562 constraints, ReadFeed: 0/19040 constraints, PredecessorRefiner: 2132/2132 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2132 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2164/25682 variables, and 0 constraints, problems are : Problem set: 0 solved, 2132 unsolved in 5039 ms.
Refiners :[Positive P Invariants (semi-flows): 0/81 constraints, State Equation: 0/6562 constraints, ReadFeed: 0/19040 constraints, PredecessorRefiner: 0/2132 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 16149ms problems are : Problem set: 0 solved, 2132 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 2164 out of 6562 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 6562/6562 places, 19120/19120 transitions.
Applied a total of 0 rules in 57083 ms. Remains 6562 /6562 variables (removed 0) and now considering 19120/19120 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 57088 ms. Remains : 6562/6562 places, 19120/19120 transitions.
RANDOM walk for 507160 steps (1277 resets) in 42975 ms. (11 steps per ms) remains 0/2132 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 12800 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 116053 ms.

BK_STOP 1779481920534

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
+ 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="CANConstruction-PT-080"
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 CANConstruction-PT-080, 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 r040-tall-177946844700422"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CANConstruction-PT-080.tgz
mv CANConstruction-PT-080 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 ;