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-177955743900117.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-d03r07, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r128-smll-177955743900117
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.7M
-rw-r--r-- 1 mcc users 7.5K Mar 7 05:21 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K Mar 7 05:21 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Mar 7 05:21 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K 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 4.0K Mar 15 09:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 09:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 09:45 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 09:45 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Mar 7 05:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 136K Mar 7 05:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 10K Mar 7 05:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 87K Mar 7 05:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 09:45 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 09:45 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 2.2M 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 1779570913878

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Echo-PT-d03r07
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-23 21:15:16] [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 21:15:16] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 21:15:17] [INFO ] Load time of PNML (sax parser for PT used): 877 ms
[2026-05-23 21:15:17] [INFO ] Transformed 4209 places.
[2026-05-23 21:15:17] [INFO ] Transformed 3518 transitions.
[2026-05-23 21:15:17] [INFO ] Found NUPN structural information;
[2026-05-23 21:15:17] [INFO ] Parsed PT model containing 4209 places and 3518 transitions and 25540 arcs in 1192 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 4209/4209 places, 3518/3518 transitions.
Reduce places removed 343 places and 0 transitions.
Iterating post reduction 0 with 343 rules applied. Total rules applied 343 place count 3866 transition count 3518
Applied a total of 343 rules in 168 ms. Remains 3866 /4209 variables (removed 343) and now considering 3518/3518 (removed 0) transitions.
// Phase 1: matrix 3518 rows 3866 cols
[2026-05-23 21:15:30] [INFO ] Invariants computation overflowed in 12492 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 21:15:37] [INFO ] Implicit Places using invariants in 19738 ms returned []
// Phase 1: matrix 3518 rows 3866 cols
[2026-05-23 21:15:49] [INFO ] Invariants computation overflowed in 11640 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 21:18:29] [INFO ] Implicit Places using invariants and state equation in 171699 ms returned []
Implicit Place search using SMT with State Equation took 191493 ms to find 0 implicit places.
Running 3517 sub problems to find dead transitions.
// Phase 1: matrix 3518 rows 3866 cols
[2026-05-23 21:18:39] [INFO ] Invariants computation overflowed in 9841 ms
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/3865 variables, 3865/3865 constraints. Problems are: Problem set: 0 solved, 3517 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 3865/7384 variables, and 3865 constraints, problems are : Problem set: 0 solved, 3517 unsolved in 30252 ms.
Refiners :[Domain max(s): 3865/3866 constraints, State Equation: 0/3866 constraints, PredecessorRefiner: 3517/3517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3517 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/3865 variables, 3865/3865 constraints. Problems are: Problem set: 0 solved, 3517 unsolved
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(s1493 timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 3865/7384 variables, and 3865 constraints, problems are : Problem set: 0 solved, 3517 unsolved in 30123 ms.
Refiners :[Domain max(s): 3865/3866 constraints, State Equation: 0/3866 constraints, PredecessorRefiner: 0/3517 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 72909ms problems are : Problem set: 0 solved, 3517 unsolved
Search for dead transitions found 0 dead transitions in 73004ms
Starting structural reductions in LIVENESS mode, iteration 1 : 3866/4209 places, 3518/3518 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 264736 ms. Remains : 3866/4209 places, 3518/3518 transitions.
Initial state reduction rules removed 1 formulas.
[2026-05-23 21:19:44] [INFO ] Flatten gal took : 1113 ms
[2026-05-23 21:19:45] [INFO ] Flatten gal took : 478 ms
[2026-05-23 21:19:45] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14586737859911675784.gal : 240 ms
[2026-05-23 21:19:45] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12738821727970262054.prop : 101 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/ReachabilityCardinality14586737859911675784.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12738821727970262054.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 ...330
RANDOM walk for 40000 steps (56 resets) in 17209 ms. (2 steps per ms) remains 21/3517 properties
BEST_FIRST walk for 4004 steps (8 resets) in 128 ms. (31 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 95 ms. (41 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 90 ms. (44 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 76 ms. (52 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 80 ms. (49 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 65 ms. (60 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 60 ms. (65 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 65 ms. (60 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 62 ms. (63 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 61 ms. (64 steps per ms) remains 21/21 properties
Loading property file /tmp/ReachabilityCardinality12738821727970262054.prop.
BEST_FIRST walk for 4004 steps (8 resets) in 61 ms. (64 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4003 steps (8 resets) in 61 ms. (64 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 57 ms. (69 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 66 ms. (59 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 188 ms. (21 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 89 ms. (44 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 101 ms. (39 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 109 ms. (36 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 110 ms. (36 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 104 ms. (38 steps per ms) remains 21/21 properties
BEST_FIRST walk for 4004 steps (8 resets) in 116 ms. (34 steps per ms) remains 21/21 properties
// Phase 1: matrix 3518 rows 3866 cols
[2026-05-23 21:19:58] [INFO ] Invariants computation overflowed in 10275 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/125 variables, 125/125 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/125 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 2 (OVERLAPS) 640/765 variables, 125/250 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/765 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 4 (OVERLAPS) 2745/3510 variables, 1127/1377 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/3510 variables, 1127/2504 constraints. Problems are: Problem set: 0 solved, 21 unsolved
Error getting values : (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 3510/7384 variables, and 2504 constraints, problems are : Problem set: 0 solved, 21 unsolved in 5014 ms.
Refiners :[Domain max(s): 1252/3866 constraints, State Equation: 1252/3866 constraints, PredecessorRefiner: 21/21 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 21 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/125 variables, 125/125 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/125 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 2 (OVERLAPS) 640/765 variables, 125/250 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/765 variables, 0/250 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 4 (OVERLAPS) 2745/3510 variables, 1127/1377 constraints. Problems are: Problem set: 0 solved, 21 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/3510 variables, 1127/2504 constraints. Problems are: Problem set: 0 solved, 21 unsolved
Reachability property qltransition_3514 is true.
At refinement iteration 6 (INCLUDED_ONLY) 0/3510 variables, 21/2525 constraints. Problems are: Problem set: 0 solved, 21 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 3510/7384 variables, and 2525 constraints, problems are : Problem set: 0 solved, 21 unsolved in 5028 ms.
Refiners :[Domain max(s): 1252/3866 constraints, State Equation: 1252/3866 constraints, PredecessorRefiner: 21/21 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 20409ms problems are : Problem set: 0 solved, 21 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 125 out of 3866 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 3866/3866 places, 3518/3518 transitions.
Graph (complete) has 14527 edges and 3866 vertex of which 3856 are kept as prefixes of interest. Removing 10 places using SCC suffix rule.29 ms
Discarding 10 places :
Also discarding 1 output transitions
Drop transitions (Output transitions of discarded places.) removed 1 transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 0 with 3 rules applied. Total rules applied 4 place count 3856 transition count 3514
Reachability property qltransition_3352 is true.
Reachability property qltransition_3216 is true.
Reachability property qltransition_3134 is true.
Applied a total of 4 rules in 743 ms. Remains 3856 /3866 variables (removed 10) and now considering 3514/3518 (removed 4) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 745 ms. Remains : 3856/3866 places, 3514/3518 transitions.
Reachability property qltransition_2999 is true.
Reachability property qltransition_2958 is true.
Reachability property qltransition_2841 is true.
Reachability property qltransition_2224 is true.
Reachability property qltransition_1679 is true.
RANDOM walk for 268062 steps (390 resets) in 15417 ms. (17 steps per ms) remains 0/21 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 3518 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 297072 ms.

BK_STOP 1779571213386

--------------------
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-d03r07"
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-d03r07, 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-177955743900117"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Echo-PT-d03r07.tgz
mv Echo-PT-d03r07 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 ;