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.r136-smll-177955811100258.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 FlexibleBarrier-PT-16b, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r136-smll-177955811100258
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.4M
-rw-r--r-- 1 mcc users 6.2K Mar 7 05:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 63K Mar 7 05:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Mar 7 05:52 CTLFireability.txt
-rw-r--r-- 1 mcc users 41K Mar 7 05:52 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 10:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 10:14 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 10:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 10:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 7 05:52 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 137K Mar 7 05:52 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Mar 7 05:52 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 7 05:52 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:14 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 945K 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 StableMarking

=== Now, execution of the tool begins

BK_START 1779618318021

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FlexibleBarrier-PT-16b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202604301425
[2026-05-24 10:25:20] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-24 10:25:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 10:25:21] [INFO ] Load time of PNML (sax parser for PT used): 576 ms
[2026-05-24 10:25:21] [INFO ] Transformed 3472 places.
[2026-05-24 10:25:21] [INFO ] Transformed 4001 transitions.
[2026-05-24 10:25:21] [INFO ] Found NUPN structural information;
[2026-05-24 10:25:21] [INFO ] Parsed PT model containing 3472 places and 4001 transitions and 10043 arcs in 886 ms.
Graph (trivial) has 3422 edges and 3472 vertex of which 98 / 3472 are part of one of the 16 SCC in 50 ms
Free SCC test removed 82 places
Structural test allowed to assert that 894 places are NOT stable. Took 104 ms.
Ensure Unique test removed 83 transitions
Reduce redundant transitions removed 83 transitions.
[2026-05-24 10:25:23] [INFO ] Flatten gal took : 816 ms
[2026-05-24 10:25:23] [INFO ] Flatten gal took : 331 ms
[2026-05-24 10:25:23] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5117705479593766531.gal : 182 ms
[2026-05-24 10:25:24] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10220164549537530744.prop : 36 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/ReachabilityCardinality5117705479593766531.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10220164549537530744.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 ...329
Loading property file /tmp/ReachabilityCardinality10220164549537530744.prop.
RANDOM walk for 40000 steps (503 resets) in 14112 ms. (2 steps per ms) remains 2401/2578 properties
BEST_FIRST walk for 121 steps (8 resets) in 25 ms. (4 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 38 ms. (3 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 20 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 58 ms. (2 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 13 ms. (8 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 31 ms. (3 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 124 steps (8 resets) in 20 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 31 ms. (3 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 25 ms. (4 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 16 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 124 steps (8 resets) in 25 ms. (4 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 13 ms. (8 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 32 ms. (3 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 34 ms. (3 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 20 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 15 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 20 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 14 ms. (8 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 25 ms. (4 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 15 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 15 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 14 ms. (8 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 16 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 22 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 120 steps (8 resets) in 10 ms. (10 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 22 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 24 ms. (4 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 20 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 16 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 23 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 22 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 123 steps (8 resets) in 28 ms. (4 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 16 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 21 ms. (5 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 16 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 18 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 17 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 19 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 16 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 120 steps (8 resets) in 19 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 18 ms. (6 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 15 ms. (7 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 122 steps (8 resets) in 14 ms. (8 steps per ms) remains 2401/2401 properties
BEST_FIRST walk for 121 steps (8 resets) in 13 ms. (8 steps per ms) remains 2401/2401 properties
Probabilistic random walk after 30001 steps, saw 12428 distinct states, run finished after 4692 ms. (steps per millisecond=6 ) properties seen :0
[2026-05-24 10:25:30] [INFO ] Flow matrix only has 3903 transitions (discarded 15 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17980249089840951190.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16997418779472816805.kers'
[2026-05-24 10:25:30] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17980249089840951190.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16997418779472816805.kers]
Normalized transition count is 3902 out of 3903 initially.
Culled 0 columns in 5 ms.
// Phase 1: matrix 3902 rows 3390 cols 9845 entries
Finished phase 1 with 3372 SingleSign rule and 0 generalized
[2026-05-24 10:25:31] [INFO ] Computed 18 invariants in 43 ms
Computed 18 P flows in 46 ms.
Exported basis to /tmp/petrispot-output-16997418779472816805.kers
Total runtime 54 ms.
[2026-05-24 10:25:31] [INFO ] State equation strengthened by 1 read => feed constraints.
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 0 (INCLUDED_ONLY) 0/2401 variables, 2401/2401 constraints. Problems are: Problem set: 0 solved, 2401 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2401/7293 variables, and 2401 constraints, problems are : Problem set: 0 solved, 2401 unsolved in 5211 ms.
Refiners :[Domain max(s): 2401/3390 constraints, Positive P Invariants (semi-flows): 0/18 constraints, State Equation: 0/3390 constraints, ReadFeed: 0/1 constraints, PredecessorRefiner: 2401/2401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 2401 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/2401 variables, 2401/2401 constraints. Problems are: Problem set: 0 solved, 2401 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2401/7293 variables, and 2401 constraints, problems are : Problem set: 0 solved, 2401 unsolved in 5068 ms.
Refiners :[Domain max(s): 2401/3390 constraints, Positive P Invariants (semi-flows): 0/18 constraints, State Equation: 0/3390 constraints, ReadFeed: 0/1 constraints, PredecessorRefiner: 0/2401 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 12016ms problems are : Problem set: 0 solved, 2401 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 2401 out of 3390 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3390/3390 places, 3918/3918 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 129 transitions
Trivial Post-agglo rules discarded 129 transitions
Performed 129 trivial Post agglomeration. Transition count delta: 129
Iterating post reduction 0 with 145 rules applied. Total rules applied 145 place count 3390 transition count 3773
Reduce places removed 129 places and 0 transitions.
Iterating post reduction 1 with 129 rules applied. Total rules applied 274 place count 3261 transition count 3773
Discarding 19 places :
Symmetric choice reduction at 2 with 19 rule applications. Total rules 293 place count 3242 transition count 3754
Iterating global reduction 2 with 19 rules applied. Total rules applied 312 place count 3242 transition count 3754
Performed 64 Post agglomeration using F-continuation condition.Transition count delta: 64
Deduced a syphon composed of 64 places in 3 ms
Reduce places removed 64 places and 0 transitions.
Iterating global reduction 2 with 128 rules applied. Total rules applied 440 place count 3178 transition count 3690
Drop transitions (Empty/Sink Transition effects.) removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Iterating post reduction 2 with 12 rules applied. Total rules applied 452 place count 3178 transition count 3678
Free-agglomeration rule applied 707 times.
Iterating global reduction 3 with 707 rules applied. Total rules applied 1159 place count 3178 transition count 2971
Reduce places removed 707 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 708 rules applied. Total rules applied 1867 place count 2471 transition count 2970
Partial Free-agglomeration rule applied 3 times.
Drop transitions (Partial Free agglomeration) removed 3 transitions
Iterating global reduction 4 with 3 rules applied. Total rules applied 1870 place count 2471 transition count 2970
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 4 with 3 rules applied. Total rules applied 1873 place count 2471 transition count 2967
Partial Post-agglomeration rule applied 1 times.
Drop transitions (Partial Post agglomeration) removed 1 transitions
Iterating global reduction 5 with 1 rules applied. Total rules applied 1874 place count 2471 transition count 2967
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 1875 place count 2470 transition count 2966
Applied a total of 1875 rules in 1820 ms. Remains 2470 /3390 variables (removed 920) and now considering 2966/3918 (removed 952) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1833 ms. Remains : 2470/3390 places, 2966/3918 transitions.
SDD proceeding with computation,2578 properties remain. new max is 4
SDD size :1 after 5
RANDOM walk for 911027 steps (0 resets) in 42506 ms. (21 steps per ms) remains 0/2401 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query StableMarking after proving 2580 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK MARKED_SUFFIX_TEST TRIVIAL_UNMARKED_SCC_TEST TOPOLOGICAL
Total runtime 35298 ms.

BK_STOP 1779618355873

--------------------
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
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -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 StableMarking -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="FlexibleBarrier-PT-16b"
export BK_EXAMINATION="StableMarking"
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 FlexibleBarrier-PT-16b, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r136-smll-177955811100258"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-16b.tgz
mv FlexibleBarrier-PT-16b execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;