Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r015-oct2-177944372400018.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 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 AirplaneLD-PT-4000, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r015-oct2-177944372400018
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 76M
-rw-r--r-- 1 mcc users 1.9M Mar 4 17:07 CTLCardinality.txt
-rw-r--r-- 1 mcc users 6.3M Mar 4 17:07 CTLCardinality.xml
-rw-r--r-- 1 mcc users 1.1M Mar 4 17:05 CTLFireability.txt
-rw-r--r-- 1 mcc users 5.8M Mar 4 17:05 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 1.4M Mar 15 07:01 LTLCardinality.txt
-rw-r--r-- 1 mcc users 3.1M Mar 15 07:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 726K Mar 15 07:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 2.9M Mar 15 07:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.5M Mar 4 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 15M Mar 4 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.7M Mar 4 17:13 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14M Mar 4 17:13 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 188K Mar 15 07:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 354K Mar 15 07:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 18M 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 positive values
NUM_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-00
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-01
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-02
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-03
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-04
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-05
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-06
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-07
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-08
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-09
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-10
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-11
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-12
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-13
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-14
FORMULA_NAME AirplaneLD-PT-4000-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779685451507

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AirplaneLD-PT-4000
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 05:04:12] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-25 05:04:13] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 05:04:14] [INFO ] Load time of PNML (sax parser for PT used): 1202 ms
[2026-05-25 05:04:14] [INFO ] Transformed 28019 places.
[2026-05-25 05:04:14] [INFO ] Transformed 32008 transitions.
[2026-05-25 05:04:14] [INFO ] Found NUPN structural information;
[2026-05-25 05:04:14] [INFO ] Parsed PT model containing 28019 places and 32008 transitions and 122028 arcs in 1529 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 46 ms.
Reduction of identical properties reduced properties to check from 16 to 14
Reduce places removed 12002 places and 0 transitions.
FORMULA AirplaneLD-PT-4000-UpperBounds-03 2 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AirplaneLD-PT-4000-UpperBounds-05 4000 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0] Max Struct:[4000, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1]
FORMULA AirplaneLD-PT-4000-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AirplaneLD-PT-4000-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA AirplaneLD-PT-4000-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4000, 1, 1, 2, 2, 1, 1, 1, 1, 1]
// Phase 1: matrix 32008 rows 16017 cols
[2026-05-25 05:04:41] [INFO ] Computed 3 invariants in 26366 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[4000, 1, 1, 2, 2, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (1260 resets) in 24267 ms. (0 steps per ms)
FORMULA AirplaneLD-PT-4000-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 60006 steps (0 resets) in 385 ms. (155 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1, 0, 0, 0] Max Struct:[4000, 2, 2, 1, 1, 1]
[2026-05-25 05:05:06] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1, 0, 0, 0] Max Struct:[4000, 2, 2, 1, 1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1, 1, 0, 0, 0] Max Struct:[4000, 2, 2, 1, 1, 1]
Support contains 4006 out of 16017 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 16017/16017 places, 32008/32008 transitions.
Graph (complete) has 42023 edges and 16017 vertex of which 8017 are kept as prefixes of interest. Removing 8000 places using SCC suffix rule.66 ms
Discarding 8000 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 15994 transitions
Reduce isomorphic transitions removed 15994 transitions.
Iterating post reduction 0 with 15994 rules applied. Total rules applied 15995 place count 8017 transition count 16014
Discarding 4000 places :
Symmetric choice reduction at 1 with 4000 rule applications. Total rules 19995 place count 4017 transition count 12014
Iterating global reduction 1 with 4000 rules applied. Total rules applied 23995 place count 4017 transition count 12014
Ensure Unique test removed 4000 transitions
Reduce isomorphic transitions removed 4000 transitions.
Iterating post reduction 1 with 4000 rules applied. Total rules applied 27995 place count 4017 transition count 8014
Free-agglomeration rule applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 27996 place count 4017 transition count 8013
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 27997 place count 4016 transition count 8013
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 27998 place count 4016 transition count 8012
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 27999 place count 4015 transition count 8012
Applied a total of 27999 rules in 796 ms. Remains 4015 /16017 variables (removed 12002) and now considering 8012/32008 (removed 23996) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 824 ms. Remains : 4015/16017 places, 8012/32008 transitions.
// Phase 1: matrix 8012 rows 4015 cols
[2026-05-25 05:05:31] [INFO ] Computed 1 invariants in 2191 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1, 1, 0, 0, 0] Max Struct:[4000, 2, 2, 1, 1, 1]
RANDOM walk for 62329 steps (8043 resets) in 30004 ms. (2 steps per ms)
FORMULA AirplaneLD-PT-4000-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 2154177 steps (286 resets) in 6414 ms. (335 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[1, 1, 1] Max Struct:[4000, 2, 2]
[2026-05-25 05:06:07] [INFO ] Invariant cache hit.
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:06:08] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 41 ms returned sat
[2026-05-25 05:06:12] [INFO ] [Real]Absence check using state equation in 4698 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:06:13] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 71 ms returned sat
[2026-05-25 05:06:16] [INFO ] [Real]Absence check using state equation in 2487 ms returned unsat
Starting Z3 with timeout 45.0 s and query timeout 4500.0 ms
[2026-05-25 05:06:17] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 37 ms returned sat
[2026-05-25 05:06:19] [INFO ] [Real]Absence check using state equation in 2377 ms returned unsat
Current structural bounds on expressions (after SMT) : Max Seen:[1, 1, 1] Max Struct:[1, 1, 1]
FORMULA AirplaneLD-PT-4000-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA AirplaneLD-PT-4000-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 26 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2026-05-25 05:06:20] [INFO ] Flatten gal took : 366 ms
[2026-05-25 05:06:20] [INFO ] Flatten gal took : 197 ms
[2026-05-25 05:06:20] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15815547075813864458.gal : 99 ms
[2026-05-25 05:06:20] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6366054734704888061.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality15815547075813864458.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6366054734704888061.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
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
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 127891 ms.

BK_STOP 1779685580928

--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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 UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="AirplaneLD-PT-4000"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2025"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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 AirplaneLD-PT-4000, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r015-oct2-177944372400018"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AirplaneLD-PT-4000.tgz
mv AirplaneLD-PT-4000 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;