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.r032-smll-177946790700047.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 AutonomousCar-PT-05b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r032-smll-177946790700047
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 640K
-rw-r--r-- 1 mcc users 8.7K Mar 5 16:49 CTLCardinality.txt
-rw-r--r-- 1 mcc users 98K Mar 5 16:49 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 5 16:49 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 5 16:49 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 07:19 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:19 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:19 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:19 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 5 16:49 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 113K Mar 5 16:49 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 16:49 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Mar 5 16:49 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:19 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:19 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 159K 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 1779472635175

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutonomousCar-PT-05b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-22 17:57:17] [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]
[2026-05-22 17:57:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 17:57:17] [INFO ] Load time of PNML (sax parser for PT used): 210 ms
[2026-05-22 17:57:17] [INFO ] Transformed 255 places.
[2026-05-22 17:57:17] [INFO ] Transformed 490 transitions.
[2026-05-22 17:57:17] [INFO ] Found NUPN structural information;
[2026-05-22 17:57:17] [INFO ] Parsed PT model containing 255 places and 490 transitions and 2527 arcs in 426 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 255/255 places, 490/490 transitions.
Graph (trivial) has 244 edges and 255 vertex of which 4 / 255 are part of one of the 2 SCC in 7 ms
Free SCC test removed 2 places
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 118 transitions
Trivial Post-agglo rules discarded 118 transitions
Performed 118 trivial Post agglomeration. Transition count delta: 118
Iterating post reduction 0 with 118 rules applied. Total rules applied 119 place count 253 transition count 370
Reduce places removed 118 places and 0 transitions.
Ensure Unique test removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 18 transitions
Trivial Post-agglo rules discarded 18 transitions
Performed 18 trivial Post agglomeration. Transition count delta: 18
Iterating post reduction 1 with 150 rules applied. Total rules applied 269 place count 135 transition count 338
Reduce places removed 18 places and 0 transitions.
Iterating post reduction 2 with 18 rules applied. Total rules applied 287 place count 117 transition count 338
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 5 Pre rules applied. Total rules applied 287 place count 117 transition count 333
Deduced a syphon composed of 5 places in 4 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 3 with 10 rules applied. Total rules applied 297 place count 112 transition count 333
Performed 56 Post agglomeration using F-continuation condition with reduction of 101 identical transitions.
Deduced a syphon composed of 56 places in 2 ms
Reduce places removed 56 places and 0 transitions.
Iterating global reduction 3 with 112 rules applied. Total rules applied 409 place count 56 transition count 176
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 411 place count 55 transition count 176
Applied a total of 411 rules in 143 ms. Remains 55 /255 variables (removed 200) and now considering 176/490 (removed 314) transitions.
[2026-05-22 17:57:18] [INFO ] Flow matrix only has 175 transitions (discarded 1 similar events)
// Phase 1: matrix 175 rows 55 cols
[2026-05-22 17:57:18] [INFO ] Computed 10 invariants in 21 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-22 17:57:18] [INFO ] Implicit Places using invariants in 584 ms returned [1]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 673 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 54/255 places, 176/490 transitions.
Applied a total of 0 rules in 4 ms. Remains 54 /54 variables (removed 0) and now considering 176/176 (removed 0) transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 852 ms. Remains : 54/255 places, 176/490 transitions.
Discarding 30 transitions out of 176. Remains 146
Initial state reduction rules removed 1 formulas.
[2026-05-22 17:57:19] [INFO ] Flatten gal took : 260 ms
[2026-05-22 17:57:20] [INFO ] Flatten gal took : 58 ms
RANDOM walk for 40000 steps (3287 resets) in 3205 ms. (12 steps per ms) remains 20/145 properties
BEST_FIRST walk for 4004 steps (35 resets) in 23 ms. (166 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4004 steps (33 resets) in 22 ms. (174 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4003 steps (30 resets) in 21 ms. (181 steps per ms) remains 20/20 properties
[2026-05-22 17:57:20] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5235617151307752171.gal : 43 ms
BEST_FIRST walk for 4004 steps (31 resets) in 38 ms. (102 steps per ms) remains 20/20 properties
BEST_FIRST walk for 4003 steps (36 resets) in 41 ms. (95 steps per ms) remains 20/20 properties
[2026-05-22 17:57:20] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1017296577208211821.prop : 4 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/ReachabilityCardinality5235617151307752171.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1017296577208211821.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 4003 steps (35 resets) in 36 ms. (108 steps per ms) remains 19/20 properties

BEST_FIRST walk for 4004 steps (26 resets) in 20 ms. (190 steps per ms) remains 18/19 properties
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 ...328
BEST_FIRST walk for 4004 steps (33 resets) in 57 ms. (69 steps per ms) remains 18/18 properties
BEST_FIRST walk for 4004 steps (32 resets) in 13 ms. (286 steps per ms) remains 17/18 properties
BEST_FIRST walk for 4004 steps (36 resets) in 18 ms. (210 steps per ms) remains 17/17 properties
BEST_FIRST walk for 4004 steps (34 resets) in 8 ms. (444 steps per ms) remains 17/17 properties
BEST_FIRST walk for 4004 steps (34 resets) in 17 ms. (222 steps per ms) remains 17/17 properties
Loading property file /tmp/ReachabilityCardinality1017296577208211821.prop.
BEST_FIRST walk for 4003 steps (30 resets) in 19 ms. (200 steps per ms) remains 17/17 properties
BEST_FIRST walk for 4004 steps (30 resets) in 12 ms. (308 steps per ms) remains 16/17 properties
BEST_FIRST walk for 4004 steps (35 resets) in 20 ms. (190 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (26 resets) in 18 ms. (210 steps per ms) remains 13/16 properties
SDD proceeding with computation,20 properties remain. new max is 4
SDD size :1 after 8
BEST_FIRST walk for 4004 steps (28 resets) in 20 ms. (190 steps per ms) remains 12/13 properties
SDD proceeding with computation,20 properties remain. new max is 8
SDD size :8 after 10
SDD proceeding with computation,20 properties remain. new max is 16
SDD size :10 after 56
BEST_FIRST walk for 4003 steps (35 resets) in 13 ms. (285 steps per ms) remains 12/12 properties
SDD proceeding with computation,20 properties remain. new max is 32
SDD size :56 after 354
[2026-05-22 17:57:20] [INFO ] Flow matrix only has 175 transitions (discarded 1 similar events)
// Phase 1: matrix 175 rows 54 cols
SDD proceeding with computation,20 properties remain. new max is 64
SDD size :354 after 14538
[2026-05-22 17:57:20] [INFO ] Computed 9 invariants in 7 ms
[2026-05-22 17:57:20] [INFO ] State equation strengthened by 2 read => feed constraints.
SDD proceeding with computation,20 properties remain. new max is 128
SDD size :14538 after 17255
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/13 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 12 unsolved
Reachability property qltransition_125 is true.
Reachability property qltransition_111 is true.
Reachability property qltransition_110 is true.
Reachability property qltransition_106 is true.
Reachability property qltransition_96 is true.
Reachability property qltransition_95 is true.
Reachability property qltransition_86 is true.
Reachability property qltransition_85 is true.
Reachability property qltransition_76 is true.
Reachability property qltransition_71 is true.
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :17255 after 23634
At refinement iteration 1 (INCLUDED_ONLY) 0/13 variables, 0/13 constraints. Problems are: Problem set: 5 solved, 7 unsolved
At refinement iteration 2 (OVERLAPS) 41/54 variables, 9/22 constraints. Problems are: Problem set: 5 solved, 7 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/54 variables, 41/63 constraints. Problems are: Problem set: 5 solved, 7 unsolved
Reachability property qltransition_146 is true.
Reachability property qltransition_145 is true.
Reachability property qltransition_136 is true.
Reachability property qltransition_135 is true.
Reachability property qltransition_131 is true.
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :23634 after 51818
At refinement iteration 4 (INCLUDED_ONLY) 0/54 variables, 0/63 constraints. Problems are: Problem set: 8 solved, 4 unsolved
Problem qltransition_171 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING SMT_REFINEMENT BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
SMT process timed out in 583ms, After SMT, problems are : Problem set: 9 solved, 3 unsolved
Fused 3 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 7 out of 54 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 54/54 places, 176/176 transitions.
Graph (complete) has 387 edges and 54 vertex of which 52 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.4 ms
Discarding 2 places :
Also discarding 2 output transitions
Drop transitions (Output transitions of discarded places.) removed 2 transitions
Discarding 10 places :
Symmetric choice reduction at 0 with 10 rule applications. Total rules 11 place count 42 transition count 127
Iterating global reduction 0 with 10 rules applied. Total rules applied 21 place count 42 transition count 127
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 25 place count 42 transition count 123
Free-agglomeration rule applied 5 times.
Iterating global reduction 1 with 5 rules applied. Total rules applied 30 place count 42 transition count 118
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 1 with 5 rules applied. Total rules applied 35 place count 37 transition count 118
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :51818 after 78208
Applied a total of 35 rules in 55 ms. Remains 37 /54 variables (removed 17) and now considering 118/176 (removed 58) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 55 ms. Remains : 37/54 places, 118/176 transitions.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Total runtime 3429 ms.

BK_STOP 1779472641325

--------------------
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="AutonomousCar-PT-05b"
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 AutonomousCar-PT-05b, 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 r032-smll-177946790700047"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-05b.tgz
mv AutonomousCar-PT-05b 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 ;