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.r128-smll-177955743900102.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 gold2025
Input is Echo-PT-d02r19, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r128-smll-177955743900102
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.0M
-rw-r--r-- 1 mcc users 6.7K Mar 7 05:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 7 05:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Mar 7 05:21 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K Mar 7 05:21 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 09:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 09:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 09:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 09:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 7 05:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 114K Mar 7 05:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.1K Mar 7 05:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 67K Mar 7 05:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:44 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 09:44 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 1.5M 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 1779570545257

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Echo-PT-d02r19
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-23 21:09:07] [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]
[2026-05-23 21:09:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 21:09:08] [INFO ] Load time of PNML (sax parser for PT used): 702 ms
[2026-05-23 21:09:08] [INFO ] Transformed 3455 places.
[2026-05-23 21:09:08] [INFO ] Transformed 2730 transitions.
[2026-05-23 21:09:08] [INFO ] Found NUPN structural information;
[2026-05-23 21:09:08] [INFO ] Parsed PT model containing 3455 places and 2730 transitions and 15940 arcs in 991 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 3455/3455 places, 2730/2730 transitions.
Reduce places removed 361 places and 0 transitions.
Iterating post reduction 0 with 361 rules applied. Total rules applied 361 place count 3094 transition count 2730
Applied a total of 361 rules in 182 ms. Remains 3094 /3455 variables (removed 361) and now considering 2730/2730 (removed 0) transitions.
// Phase 1: matrix 2730 rows 3094 cols
[2026-05-23 21:09:17] [INFO ] Computed 1368 invariants in 8058 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 21:10:08] [INFO ] Performed 344/3094 implicitness test of which 0 returned IMPLICIT in 40 seconds.
[2026-05-23 21:10:38] [INFO ] Performed 447/3094 implicitness test of which 0 returned IMPLICIT in 70 seconds.
[2026-05-23 21:11:08] [INFO ] Performed 1403/3094 implicitness test of which 0 returned IMPLICIT in 100 seconds.
[2026-05-23 21:11:28] [INFO ] Implicit Places using invariants in 139015 ms returned []
[2026-05-23 21:11:28] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 21:12:35] [INFO ] Performed 1358/3094 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-05-23 21:12:58] [INFO ] Implicit Places using invariants and state equation in 90619 ms returned []
Implicit Place search using SMT with State Equation took 229689 ms to find 0 implicit places.
Running 2729 sub problems to find dead transitions.
[2026-05-23 21:12:59] [INFO ] Invariant cache hit.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/3093 variables, 3093/3093 constraints. Problems are: Problem set: 0 solved, 2729 unsolved
SMT process timed out in 32081ms, After SMT, problems are : Problem set: 0 solved, 2729 unsolved
Search for dead transitions found 0 dead transitions in 32167ms
Starting structural reductions in LIVENESS mode, iteration 1 : 3094/3455 places, 2730/2730 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 262129 ms. Remains : 3094/3455 places, 2730/2730 transitions.
Initial state reduction rules removed 1 formulas.
[2026-05-23 21:13:33] [INFO ] Flatten gal took : 1024 ms
[2026-05-23 21:13:33] [INFO ] Flatten gal took : 356 ms
[2026-05-23 21:13:33] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9914539612926975993.gal : 210 ms
[2026-05-23 21:13:34] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality15945238432099717855.prop : 69 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality9914539612926975993.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality15945238432099717855.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
RANDOM walk for 40000 steps (52 resets) in 13436 ms. (2 steps per ms) remains 21/2729 properties
BEST_FIRST walk for 4004 steps (8 resets) in 112 ms. (35 steps per ms) remains 19/21 properties
Loading property file /tmp/ReachabilityCardinality15945238432099717855.prop.
BEST_FIRST walk for 4004 steps (8 resets) in 125 ms. (31 steps per ms) remains 18/19 properties
BEST_FIRST walk for 4003 steps (8 resets) in 97 ms. (40 steps per ms) remains 17/18 properties
BEST_FIRST walk for 4004 steps (8 resets) in 95 ms. (41 steps per ms) remains 16/17 properties
BEST_FIRST walk for 4004 steps (8 resets) in 67 ms. (58 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 105 ms. (37 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 97 ms. (40 steps per ms) remains 15/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 80 ms. (49 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 74 ms. (53 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 65 ms. (60 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 63 ms. (62 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 64 ms. (61 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 88 ms. (44 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 215 ms. (18 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 68 ms. (58 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 71 ms. (55 steps per ms) remains 14/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 73 ms. (54 steps per ms) remains 14/14 properties
BEST_FIRST walk for 4004 steps (8 resets) in 74 ms. (53 steps per ms) remains 14/14 properties
BEST_FIRST walk for 4003 steps (8 resets) in 91 ms. (43 steps per ms) remains 14/14 properties
BEST_FIRST walk for 4004 steps (8 resets) in 73 ms. (54 steps per ms) remains 13/14 properties
[2026-05-23 21:13:35] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 52/52 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 13 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2447/5824 variables, and 822 constraints, problems are : Problem set: 0 solved, 13 unsolved in 5011 ms.
Refiners :[Domain max(s): 52/3094 constraints, Generalized P Invariants (flows): 770/1368 constraints, State Equation: 0/3094 constraints, PredecessorRefiner: 13/13 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 13 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/52 variables, 52/52 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/52 variables, 0/52 constraints. Problems are: Problem set: 0 solved, 13 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2447/5824 variables, and 822 constraints, problems are : Problem set: 0 solved, 13 unsolved in 5008 ms.
Refiners :[Domain max(s): 52/3094 constraints, Generalized P Invariants (flows): 770/1368 constraints, State Equation: 0/3094 constraints, PredecessorRefiner: 0/13 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 10376ms problems are : Problem set: 0 solved, 13 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 52 out of 3094 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3094/3094 places, 2730/2730 transitions.
Graph (complete) has 9333 edges and 3094 vertex of which 3085 are kept as prefixes of interest. Removing 9 places using SCC suffix rule.23 ms
Discarding 9 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 5 place count 3085 transition count 2725
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 6 place count 3084 transition count 2724
Applied a total of 6 rules in 885 ms. Remains 3084 /3094 variables (removed 10) and now considering 2724/2730 (removed 6) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 886 ms. Remains : 3084/3094 places, 2724/2730 transitions.
Reachability property qltransition_2692 is true.
Reachability property qltransition_2661 is true.
Reachability property qltransition_2656 is true.
Reachability property qltransition_2652 is true.
Reachability property qltransition_2579 is true.
Reachability property qltransition_2573 is true.
Reachability property qltransition_2570 is true.
Reachability property qltransition_2496 is true.
Reachability property qltransition_2491 is true.
Reachability property qltransition_2487 is true.
RANDOM walk for 169161 steps (235 resets) in 7297 ms. (23 steps per ms) remains 0/13 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 2730 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 281363 ms.

BK_STOP 1779570829310

--------------------
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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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="Echo-PT-d02r19"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2025"
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 gold2025"
echo " Input is Echo-PT-d02r19, 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 r128-smll-177955743900102"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Echo-PT-d02r19.tgz
mv Echo-PT-d02r19 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 ;