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.r152-tall-177961077400262.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 GPUForwardProgress-PT-12b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r152-tall-177961077400262
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 544K
-rw-r--r-- 1 mcc users 8.8K Mar 7 11:29 CTLCardinality.txt
-rw-r--r-- 1 mcc users 102K Mar 7 11:29 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Mar 7 11:28 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Mar 7 11:28 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 10:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 10:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 7 11:29 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 125K Mar 7 11:29 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Mar 7 11:29 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 70K Mar 7 11:29 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:36 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 65K 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 1779700931730

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=GPUForwardProgress-PT-12b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202604301425
[2026-05-25 09:22:12] [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]
[2026-05-25 09:22:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 09:22:13] [INFO ] Load time of PNML (sax parser for PT used): 77 ms
[2026-05-25 09:22:13] [INFO ] Transformed 264 places.
[2026-05-25 09:22:13] [INFO ] Transformed 277 transitions.
[2026-05-25 09:22:13] [INFO ] Found NUPN structural information;
[2026-05-25 09:22:13] [INFO ] Parsed PT model containing 264 places and 277 transitions and 677 arcs in 165 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 264/264 places, 277/277 transitions.
Graph (trivial) has 238 edges and 264 vertex of which 7 / 264 are part of one of the 1 SCC in 6 ms
Free SCC test removed 6 places
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Ensure Unique test removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 146 transitions
Trivial Post-agglo rules discarded 146 transitions
Performed 146 trivial Post agglomeration. Transition count delta: 146
Iterating post reduction 0 with 147 rules applied. Total rules applied 148 place count 257 transition count 124
Reduce places removed 146 places and 0 transitions.
Ensure Unique test removed 13 transitions
Reduce isomorphic transitions removed 13 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 160 rules applied. Total rules applied 308 place count 111 transition count 110
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 309 place count 110 transition count 110
Performed 26 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 26 Pre rules applied. Total rules applied 309 place count 110 transition count 84
Deduced a syphon composed of 26 places in 1 ms
Reduce places removed 26 places and 0 transitions.
Iterating global reduction 3 with 52 rules applied. Total rules applied 361 place count 84 transition count 84
Performed 41 Post agglomeration using F-continuation condition.Transition count delta: 41
Deduced a syphon composed of 41 places in 0 ms
Reduce places removed 41 places and 0 transitions.
Iterating global reduction 3 with 82 rules applied. Total rules applied 443 place count 43 transition count 43
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -10
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 445 place count 42 transition count 53
Applied a total of 445 rules in 54 ms. Remains 42 /264 variables (removed 222) and now considering 53/277 (removed 224) transitions.
[2026-05-25 09:22:13] [INFO ] Flow matrix only has 42 transitions (discarded 11 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-6822653651577168999.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2934101226798622035.kers'
[2026-05-25 09:22:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-6822653651577168999.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2934101226798622035.kers]
Normalized transition count is 41 out of 42 initially.
Culled 0 columns in 0 ms.
// Phase 1: matrix 41 rows 42 cols 155 entries
Finished phase 1 with 28 SingleSign rule and 1 generalized
[2026-05-25 09:22:13] [INFO ] Computed 13 invariants in 0 ms
Computed 13 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-2934101226798622035.kers
Total runtime 1 ms.
[2026-05-25 09:22:13] [INFO ] Implicit Places using invariants in 244 ms returned []
[2026-05-25 09:22:13] [INFO ] Flow matrix only has 42 transitions (discarded 11 similar events)
[2026-05-25 09:22:13] [INFO ] Invariant cache hit.
[2026-05-25 09:22:13] [INFO ] State equation strengthened by 38 read => feed constraints.
[2026-05-25 09:22:13] [INFO ] Implicit Places using invariants and state equation in 116 ms returned []
Implicit Place search using SMT with State Equation took 391 ms to find 0 implicit places.
Running 52 sub problems to find dead transitions.
[2026-05-25 09:22:13] [INFO ] Flow matrix only has 42 transitions (discarded 11 similar events)
[2026-05-25 09:22:13] [INFO ] Invariant cache hit.
[2026-05-25 09:22:13] [INFO ] State equation strengthened by 38 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 41/41 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 13/54 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/95 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 37/132 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 0/132 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 6 (OVERLAPS) 1/83 variables, 1/133 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/83 variables, 1/134 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/83 variables, 0/134 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 9 (OVERLAPS) 1/84 variables, 1/135 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/84 variables, 0/135 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 11 (OVERLAPS) 0/84 variables, 0/135 constraints. Problems are: Problem set: 0 solved, 52 unsolved
No progress, stopping.
After SMT solving in domain Real declared 84/84 variables, and 135 constraints, problems are : Problem set: 0 solved, 52 unsolved in 1603 ms.
Refiners :[Domain max(s): 42/42 constraints, Generalized P Invariants (flows): 13/13 constraints, State Equation: 42/42 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 52/52 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 52 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 41/41 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/41 variables, 13/54 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/41 variables, 0/54 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 3 (OVERLAPS) 41/82 variables, 41/95 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/82 variables, 37/132 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/82 variables, 52/184 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/82 variables, 0/184 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 7 (OVERLAPS) 1/83 variables, 1/185 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/83 variables, 1/186 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/83 variables, 0/186 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 10 (OVERLAPS) 1/84 variables, 1/187 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/84 variables, 0/187 constraints. Problems are: Problem set: 0 solved, 52 unsolved
At refinement iteration 12 (OVERLAPS) 0/84 variables, 0/187 constraints. Problems are: Problem set: 0 solved, 52 unsolved
No progress, stopping.
After SMT solving in domain Int declared 84/84 variables, and 187 constraints, problems are : Problem set: 0 solved, 52 unsolved in 3477 ms.
Refiners :[Domain max(s): 42/42 constraints, Generalized P Invariants (flows): 13/13 constraints, State Equation: 42/42 constraints, ReadFeed: 38/38 constraints, PredecessorRefiner: 52/52 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 5160ms problems are : Problem set: 0 solved, 52 unsolved
Search for dead transitions found 0 dead transitions in 5175ms
Starting structural reductions in LIVENESS mode, iteration 1 : 42/264 places, 53/277 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 5653 ms. Remains : 42/264 places, 53/277 transitions.
Discarding 26 transitions out of 53. Remains 27
Initial state reduction rules removed 1 formulas.
RANDOM walk for 34033 steps (2893 resets) in 1177 ms. (28 steps per ms) remains 0/26 properties
[2026-05-25 09:22:19] [INFO ] Flatten gal took : 40 ms
[2026-05-25 09:22:19] [INFO ] Flatten gal took : 8 ms
[2026-05-25 09:22:19] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality4288528471859575380.gal : 5 ms
[2026-05-25 09:22:19] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7106083461095629854.prop : 0 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/ReachabilityCardinality4288528471859575380.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7106083461095629854.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 27 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 6305 ms.

BK_STOP 1779700939304

--------------------
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//
++ 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 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="GPUForwardProgress-PT-12b"
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 GPUForwardProgress-PT-12b, 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 r152-tall-177961077400262"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/GPUForwardProgress-PT-12b.tgz
mv GPUForwardProgress-PT-12b 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 ;