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.r098-tall-177955695500415.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 DLCflexbar-PT-3a, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r098-tall-177955695500415
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.5M
-rw-r--r-- 1 mcc users 6.4K Mar 6 15:20 CTLCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 6 15:20 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Mar 6 15:19 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 6 15:19 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Mar 15 09:17 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 15 09:17 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 09:17 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 09:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 6 15:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 131K Mar 6 15:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Mar 6 15:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 98K Mar 6 15:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:17 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 09:17 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 996K 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 DLCflexbar-PT-3a-ReachabilityFireability-2024-00
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-01
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-02
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-03
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-04
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-05
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-06
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-07
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-08
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-09
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-10
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-11
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-12
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-13
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-14
FORMULA_NAME DLCflexbar-PT-3a-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779608967020

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DLCflexbar-PT-3a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-24 07:49:28] [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]
[2026-05-24 07:49:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 07:49:28] [INFO ] Load time of PNML (sax parser for PT used): 192 ms
[2026-05-24 07:49:28] [INFO ] Transformed 581 places.
[2026-05-24 07:49:28] [INFO ] Transformed 3891 transitions.
[2026-05-24 07:49:28] [INFO ] Found NUPN structural information;
[2026-05-24 07:49:28] [INFO ] Parsed PT model containing 581 places and 3891 transitions and 14956 arcs in 314 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 26 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 455 transitions
Reduce redundant transitions removed 455 transitions.
RANDOM walk for 40000 steps (8 resets) in 2608 ms. (15 steps per ms) remains 3/16 properties
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 1556 ms. (25 steps per ms) remains 3/3 properties
[2026-05-24 07:49:30] [INFO ] Flatten gal took : 690 ms
BEST_FIRST walk for 40004 steps (8 resets) in 1092 ms. (36 steps per ms) remains 3/3 properties
BEST_FIRST walk for 40003 steps (8 resets) in 676 ms. (59 steps per ms) remains 3/3 properties
[2026-05-24 07:49:30] [INFO ] Flatten gal took : 304 ms
[2026-05-24 07:49:30] [INFO ] Flow matrix only has 382 transitions (discarded 3054 similar events)
[2026-05-24 07:49:30] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15914178291164503612.gal : 103 ms
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10662765465690041996.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-14828055670324024425.kers'
[2026-05-24 07:49:30] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10829300707705448444.prop : 1 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/ReachabilityCardinality15914178291164503612.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10829300707705448444.prop' '--nowitness' '--gen-order' 'FOLLOW'
[2026-05-24 07:49:30] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10662765465690041996.kers, --Pflows, --basisKERS=/tmp/petrispot-output-14828055670324024425.kers]

Normalized transition count is 381 out of 382 initially.
Culling duplicate invariants (modulo rational): removing 320 columns.
Culled 320 columns in 0 ms.
// Phase 1: matrix 381 rows 261 cols 796 entries
Finished phase 1 with 226 SingleSign rule and 0 generalized
[2026-05-24 07:49:30] [INFO ] Computed 355 invariants in 2 ms
Computed 355 P flows in 3 ms.
Exported basis to /tmp/petrispot-output-14828055670324024425.kers
Total runtime 4 ms.
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
[2026-05-24 07:49:31] [INFO ] State equation strengthened by 91 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Loading property file /tmp/ReachabilityCardinality10829300707705448444.prop.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/158 variables, 158/158 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/158 variables, 0/158 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem DLCflexbar-PT-3a-ReachabilityFireability-2024-03 is UNSAT
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-03 FALSE TECHNIQUES SMT_REFINEMENT
Problem DLCflexbar-PT-3a-ReachabilityFireability-2024-12 is UNSAT
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-12 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 175/333 variables, 119/277 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/333 variables, 175/452 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/333 variables, 0/452 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 248/581 variables, 236/688 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/581 variables, 248/936 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/581 variables, 0/936 constraints. Problems are: Problem set: 2 solved, 1 unsolved
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :4 after 7
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :7 after 10
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :10 after 11
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :11 after 381
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :381 after 2941
At refinement iteration 8 (OVERLAPS) 381/962 variables, 581/1517 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/962 variables, 90/1607 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/962 variables, 0/1607 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 1/963 variables, 1/1608 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/963 variables, 0/1608 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/963 variables, 0/1608 constraints. Problems are: Problem set: 2 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 963/963 variables, and 1608 constraints, problems are : Problem set: 2 solved, 1 unsolved in 2061 ms.
Refiners :[Domain max(s): 581/581 constraints, Positive P Invariants (semi-flows): 355/355 constraints, State Equation: 581/581 constraints, ReadFeed: 91/91 constraints, PredecessorRefiner: 3/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 1 unsolved
SDD proceeding with computation,3 properties remain. new max is 256
SDD size :2941 after 138741
At refinement iteration 0 (INCLUDED_ONLY) 0/71 variables, 71/71 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/71 variables, 0/71 constraints. Problems are: Problem set: 2 solved, 1 unsolved
Problem DLCflexbar-PT-3a-ReachabilityFireability-2024-07 is UNSAT
FORMULA DLCflexbar-PT-3a-ReachabilityFireability-2024-07 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 210/963 variables, and 127 constraints, problems are : Problem set: 3 solved, 0 unsolved in 1106 ms.
Refiners :[Domain max(s): 71/581 constraints, Positive P Invariants (semi-flows): 56/355 constraints, State Equation: 0/581 constraints, ReadFeed: 0/91 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3441ms problems are : Problem set: 3 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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 5844 ms.

BK_STOP 1779608974368

--------------------
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="DLCflexbar-PT-3a"
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 DLCflexbar-PT-3a, 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 r098-tall-177955695500415"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DLCflexbar-PT-3a.tgz
mv DLCflexbar-PT-3a 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 ;