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.r080-tall-177946972500287.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 gold2025
Input is CopsAndRobbers-PT-CRL015X005, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r080-tall-177946972500287
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 516K
-rw-r--r-- 1 mcc users 8.2K Mar 6 13:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 13:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.6K Mar 6 13:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 6 13:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 15 08:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 15 08:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Mar 15 08:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 6 13:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 125K Mar 6 13:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Mar 6 13:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 6 13:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 15 08:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 11 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 80K 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 1779559247952

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CopsAndRobbers-PT-CRL015X005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-23 18:00:49] [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 18:00:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 18:00:49] [INFO ] Load time of PNML (sax parser for PT used): 52 ms
[2026-05-23 18:00:49] [INFO ] Transformed 85 places.
[2026-05-23 18:00:49] [INFO ] Transformed 109 transitions.
[2026-05-23 18:00:49] [INFO ] Parsed PT model containing 85 places and 109 transitions and 504 arcs in 132 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 85/85 places, 109/109 transitions.
Reduce places removed 15 places and 0 transitions.
Iterating post reduction 0 with 15 rules applied. Total rules applied 15 place count 70 transition count 109
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 15 place count 70 transition count 108
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 17 place count 69 transition count 108
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 19 place count 68 transition count 107
Applied a total of 19 rules in 32 ms. Remains 68 /85 variables (removed 17) and now considering 107/109 (removed 2) transitions.
Running 77 sub problems to find dead transitions.
// Phase 1: matrix 107 rows 68 cols
[2026-05-23 18:00:49] [INFO ] Computed 18 invariants in 11 ms
[2026-05-23 18:00:49] [INFO ] State equation strengthened by 30 read => feed constraints.
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/66 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/66 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/68 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/68 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 107/175 variables, 68/86 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 30/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2026-05-23 18:00:51] [INFO ] Deduced a trap composed of 33 places in 86 ms of which 5 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 1/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 9 (OVERLAPS) 0/175 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Real declared 175/175 variables, and 117 constraints, problems are : Problem set: 0 solved, 77 unsolved in 6699 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 68/68 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 77 unsolved
Starting Z3 with timeout 20.0 s and query timeout 2000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/66 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/66 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 1/17 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/66 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (OVERLAPS) 2/68 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/68 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (OVERLAPS) 107/175 variables, 68/87 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 30/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 77/194 constraints. Problems are: Problem set: 0 solved, 77 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 175/175 variables, and 194 constraints, problems are : Problem set: 0 solved, 77 unsolved in 20031 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 68/68 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 26849ms problems are : Problem set: 0 solved, 77 unsolved
Search for dead transitions found 0 dead transitions in 26864ms
[2026-05-23 18:01:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 18:01:16] [INFO ] Implicit Places using invariants in 95 ms returned []
[2026-05-23 18:01:16] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-23 18:01:16] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 18:01:16] [INFO ] Implicit Places using invariants and state equation in 380 ms returned []
Implicit Place search using SMT with State Equation took 481 ms to find 0 implicit places.
Running 77 sub problems to find dead transitions.
[2026-05-23 18:01:16] [INFO ] Invariant cache hit.
[2026-05-23 18:01:16] [INFO ] State equation strengthened by 30 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/66 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/66 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/68 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/68 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 107/175 variables, 68/86 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 30/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (OVERLAPS) 0/175 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Real declared 175/175 variables, and 116 constraints, problems are : Problem set: 0 solved, 77 unsolved in 4130 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 68/68 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 77 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/66 variables, 15/15 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/66 variables, 1/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/66 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (OVERLAPS) 2/68 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/68 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 107/175 variables, 68/86 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 30/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 77/193 constraints. Problems are: Problem set: 0 solved, 77 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 175/175 variables, and 193 constraints, problems are : Problem set: 0 solved, 77 unsolved in 30007 ms.
Refiners :[Positive P Invariants (semi-flows): 17/17 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 68/68 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 34167ms problems are : Problem set: 0 solved, 77 unsolved
Search for dead transitions found 0 dead transitions in 34168ms
Starting structural reductions in LIVENESS mode, iteration 1 : 68/85 places, 107/109 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 61594 ms. Remains : 68/85 places, 107/109 transitions.
Discarding 14 transitions out of 107. Remains 93
Initial state reduction rules removed 16 formulas.
RANDOM walk for 40000 steps (8 resets) in 983 ms. (40 steps per ms) remains 28/77 properties
BEST_FIRST walk for 4004 steps (26 resets) in 19 ms. (200 steps per ms) remains 26/28 properties
BEST_FIRST walk for 4004 steps (25 resets) in 20 ms. (190 steps per ms) remains 24/26 properties
BEST_FIRST walk for 4003 steps (25 resets) in 27 ms. (142 steps per ms) remains 22/24 properties
BEST_FIRST walk for 4004 steps (25 resets) in 25 ms. (154 steps per ms) remains 20/22 properties
BEST_FIRST walk for 4003 steps (25 resets) in 12 ms. (307 steps per ms) remains 18/20 properties
BEST_FIRST walk for 4004 steps (24 resets) in 15 ms. (250 steps per ms) remains 16/18 properties
BEST_FIRST walk for 4002 steps (11 resets) in 51 ms. (76 steps per ms) remains 15/16 properties
BEST_FIRST walk for 4003 steps (24 resets) in 12 ms. (307 steps per ms) remains 13/15 properties
BEST_FIRST walk for 4004 steps (25 resets) in 9 ms. (400 steps per ms) remains 11/13 properties
BEST_FIRST walk for 4004 steps (25 resets) in 25 ms. (154 steps per ms) remains 10/11 properties
BEST_FIRST walk for 4004 steps (25 resets) in 23 ms. (166 steps per ms) remains 8/10 properties
[2026-05-23 18:01:51] [INFO ] Flatten gal took : 59 ms
BEST_FIRST walk for 4004 steps (24 resets) in 8 ms. (444 steps per ms) remains 6/8 properties
BEST_FIRST walk for 4004 steps (24 resets) in 10 ms. (364 steps per ms) remains 4/6 properties
BEST_FIRST walk for 4003 steps (26 resets) in 19 ms. (200 steps per ms) remains 2/4 properties
BEST_FIRST walk for 1250 steps (5 resets) in 5 ms. (208 steps per ms) remains 0/2 properties
[2026-05-23 18:01:51] [INFO ] Flatten gal took : 31 ms
[2026-05-23 18:01:51] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6684170250567066384.gal : 9 ms
[2026-05-23 18:01:51] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11012493790444879683.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6684170250567066384.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11012493790444879683.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 93 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 62383 ms.

BK_STOP 1779559311688

--------------------
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="CopsAndRobbers-PT-CRL015X005"
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 CopsAndRobbers-PT-CRL015X005, 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 r080-tall-177946972500287"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CopsAndRobbers-PT-CRL015X005.tgz
mv CopsAndRobbers-PT-CRL015X005 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 ;