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.r130-smll-177955809100439.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 FlexibleBarrier-PT-20a, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r130-smll-177955809100439
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 748K
-rw-r--r-- 1 mcc users 6.4K Mar 7 07:04 CTLCardinality.txt
-rw-r--r-- 1 mcc users 66K Mar 7 07:04 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.4K Mar 7 06:56 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 7 06:56 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:15 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 10:15 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:15 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 10:15 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.7K Mar 7 07:04 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 89K Mar 7 07:04 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.6K Mar 7 07:04 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 83K Mar 7 07:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:15 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 321K 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

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-00
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-01
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-02
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-03
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-04
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-05
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-06
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-07
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-08
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-09
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-10
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-11
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-12
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-13
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-14
FORMULA_NAME FlexibleBarrier-PT-20a-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779924646741

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FlexibleBarrier-PT-20a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-27 23:30:48] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-27 23:30:48] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-27 23:30:49] [INFO ] Load time of PNML (sax parser for PT used): 281 ms
[2026-05-27 23:30:49] [INFO ] Transformed 243 places.
[2026-05-27 23:30:49] [INFO ] Transformed 1064 transitions.
[2026-05-27 23:30:49] [INFO ] Found NUPN structural information;
[2026-05-27 23:30:49] [INFO ] Parsed PT model containing 243 places and 1064 transitions and 5317 arcs in 525 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 34 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 1 formulas.
Ensure Unique test removed 362 transitions
Reduce redundant transitions removed 362 transitions.
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2026-05-27 23:30:50] [INFO ] Flatten gal took : 235 ms
[2026-05-27 23:30:50] [INFO ] Flatten gal took : 128 ms
[2026-05-27 23:30:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15682844995976488538.gal : 104 ms
[2026-05-27 23:30:50] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7573978981183065848.prop : 22 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/ReachabilityCardinality15682844995976488538.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7573978981183065848.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
RANDOM walk for 40000 steps (8 resets) in 4015 ms. (9 steps per ms) remains 6/15 properties
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Loading property file /tmp/ReachabilityCardinality7573978981183065848.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 683 ms. (58 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 148 ms. (268 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 174 ms. (228 steps per ms) remains 5/6 properties
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Invariant property FlexibleBarrier-PT-20a-ReachabilityFireability-2024-15 does not hold.
SDD proceeding with computation,14 properties remain. new max is 2
SDD size :1 after 5
SDD proceeding with computation,14 properties remain. new max is 4
SDD size :5 after 15
SDD proceeding with computation,14 properties remain. new max is 8
SDD size :15 after 17
SDD proceeding with computation,14 properties remain. new max is 16
SDD size :17 after 53
SDD proceeding with computation,14 properties remain. new max is 32
SDD size :53 after 57
SDD proceeding with computation,14 properties remain. new max is 64
SDD size :57 after 65
SDD proceeding with computation,14 properties remain. new max is 128
SDD size :65 after 233
BEST_FIRST walk for 40004 steps (8 resets) in 805 ms. (49 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 214 ms. (186 steps per ms) remains 5/5 properties
SDD proceeding with computation,14 properties remain. new max is 256
SDD size :233 after 881
BEST_FIRST walk for 40004 steps (8 resets) in 275 ms. (144 steps per ms) remains 4/5 properties
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
[2026-05-27 23:30:51] [INFO ] Flow matrix only has 682 transitions (discarded 20 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10709833487955167682.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7352969839229916107.kers'
[2026-05-27 23:30:51] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10709833487955167682.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7352969839229916107.kers]
Culling duplicate invariants (modulo rational): removing 2 columns.
Culled 2 columns in 0 ms.
// Phase 1: matrix 682 rows 241 cols 2105 entries
Finished phase 1 with 221 SingleSign rule and 0 generalized
[2026-05-27 23:30:51] [INFO ] Computed 22 invariants in 3 ms
Computed 22 P flows in 4 ms.
Exported basis to /tmp/petrispot-output-7352969839229916107.kers
Total runtime 5 ms.
[2026-05-27 23:30:51] [INFO ] State equation strengthened by 481 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
SDD proceeding with computation,14 properties remain. new max is 512
SDD size :881 after 3489
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/61 variables, 61/61 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/61 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem FlexibleBarrier-PT-20a-ReachabilityFireability-2024-00 is UNSAT
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-00 FALSE TECHNIQUES SMT_REFINEMENT
Problem FlexibleBarrier-PT-20a-ReachabilityFireability-2024-01 is UNSAT
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-01 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 182/243 variables, 22/83 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/243 variables, 182/265 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/243 variables, 0/265 constraints. Problems are: Problem set: 2 solved, 2 unsolved
SDD proceeding with computation,14 properties remain. new max is 1024
SDD size :3489 after 22529
At refinement iteration 5 (OVERLAPS) 682/925 variables, 243/508 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/925 variables, 481/989 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/925 variables, 0/989 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 0/925 variables, 0/989 constraints. Problems are: Problem set: 2 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Real declared 925/925 variables, and 989 constraints, problems are : Problem set: 2 solved, 2 unsolved in 1788 ms.
Refiners :[Domain max(s): 243/243 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 243/243 constraints, ReadFeed: 481/481 constraints, PredecessorRefiner: 4/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 41/41 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 0/41 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Problem FlexibleBarrier-PT-20a-ReachabilityFireability-2024-05 is UNSAT
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-05 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 202/243 variables, 22/63 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/243 variables, 202/265 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/243 variables, 0/265 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 682/925 variables, 243/508 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/925 variables, 481/989 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/925 variables, 0/989 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/925 variables, 0/989 constraints. Problems are: Problem set: 3 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 925/925 variables, and 989 constraints, problems are : Problem set: 3 solved, 1 unsolved in 746 ms.
Refiners :[Domain max(s): 243/243 constraints, Positive P Invariants (semi-flows): 22/22 constraints, State Equation: 243/243 constraints, ReadFeed: 481/481 constraints, PredecessorRefiner: 2/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2767ms problems are : Problem set: 3 solved, 1 unsolved
Finished Parikh walk after 21 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=21 )
FORMULA FlexibleBarrier-PT-20a-ReachabilityFireability-2024-07 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 9 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 5551 ms.

BK_STOP 1779924654441

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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 ReachabilityFireability -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="FlexibleBarrier-PT-20a"
export BK_EXAMINATION="ReachabilityFireability"
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 FlexibleBarrier-PT-20a, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r130-smll-177955809100439"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-20a.tgz
mv FlexibleBarrier-PT-20a execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;