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-oct2-177944372500072.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 AutoFlight-PT-48a, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r015-oct2-177944372500072
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 752K
-rw-r--r-- 1 mcc users 6.9K Mar 5 16:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 75K Mar 5 16:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Mar 5 16:43 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 5 16:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 07:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.5K Mar 5 16:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 96K Mar 5 16:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 5 16:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 94K Mar 5 16:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:16 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 309K 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 AutoFlight-PT-48a-UpperBounds-00
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-01
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-02
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-03
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-04
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-05
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-06
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-07
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-08
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-09
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-10
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-11
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-12
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-13
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-14
FORMULA_NAME AutoFlight-PT-48a-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779685739225

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutoFlight-PT-48a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 05:09:00] [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 05:09:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 05:09:01] [INFO ] Load time of PNML (sax parser for PT used): 136 ms
[2026-05-25 05:09:01] [INFO ] Transformed 1127 places.
[2026-05-25 05:09:01] [INFO ] Transformed 1113 transitions.
[2026-05-25 05:09:01] [INFO ] Found NUPN structural information;
[2026-05-25 05:09:01] [INFO ] Parsed PT model containing 1127 places and 1113 transitions and 3458 arcs in 246 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Ensure Unique test removed 192 transitions
Reduce redundant transitions removed 192 transitions.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 921 rows 1127 cols
[2026-05-25 05:09:01] [INFO ] Computed 258 invariants in 26 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (67 resets) in 127 ms. (78 steps per ms)
FORMULA AutoFlight-PT-48a-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutoFlight-PT-48a-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 10001 steps (2 resets) in 49 ms. (200 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0] Max Struct:[1]
[2026-05-25 05:09:01] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:09:01] [INFO ] [Real]Absence check using 257 positive place invariants in 117 ms returned sat
[2026-05-25 05:09:01] [INFO ] [Real]Absence check using 257 positive and 1 generalized place invariants in 7 ms returned sat
[2026-05-25 05:09:02] [INFO ] [Real]Absence check using state equation in 517 ms returned sat
[2026-05-25 05:09:02] [INFO ] State equation strengthened by 192 read => feed constraints.
[2026-05-25 05:09:02] [INFO ] [Real]Added 192 Read/Feed constraints in 25 ms returned sat
[2026-05-25 05:09:02] [INFO ] Solution in real domain found non-integer solution.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 05:09:02] [INFO ] [Nat]Absence check using 257 positive place invariants in 110 ms returned sat
[2026-05-25 05:09:03] [INFO ] [Nat]Absence check using 257 positive and 1 generalized place invariants in 6 ms returned sat
[2026-05-25 05:09:03] [INFO ] [Nat]Absence check using state equation in 340 ms returned sat
[2026-05-25 05:09:03] [INFO ] [Nat]Added 192 Read/Feed constraints in 81 ms returned sat
[2026-05-25 05:09:03] [INFO ] Computed and/alt/rep : 816/1536/816 causal constraints (skipped 104 transitions) in 84 ms.
Maximisation of solution failed !
Minimization took 3 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0] Max Struct:[1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[0] Max Struct:[1]
Support contains 1 out of 1127 places. Attempting structural reductions.
Drop transitions (Removing consumers from one bounded place p945) removed 1 transitions
Starting structural reductions in REACHABILITY mode, iteration 0 : 1127/1127 places, 920/920 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 220 transitions
Trivial Post-agglo rules discarded 220 transitions
Performed 220 trivial Post agglomeration. Transition count delta: 220
Iterating post reduction 0 with 220 rules applied. Total rules applied 220 place count 1127 transition count 700
Reduce places removed 220 places and 0 transitions.
Iterating post reduction 1 with 220 rules applied. Total rules applied 440 place count 907 transition count 700
Performed 68 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 68 Pre rules applied. Total rules applied 440 place count 907 transition count 632
Deduced a syphon composed of 68 places in 2 ms
Reduce places removed 68 places and 0 transitions.
Iterating global reduction 2 with 136 rules applied. Total rules applied 576 place count 839 transition count 632
Performed 72 Post agglomeration using F-continuation condition.Transition count delta: 72
Deduced a syphon composed of 72 places in 2 ms
Reduce places removed 72 places and 0 transitions.
Iterating global reduction 2 with 144 rules applied. Total rules applied 720 place count 767 transition count 560
Free-agglomeration rule applied 72 times.
Iterating global reduction 2 with 72 rules applied. Total rules applied 792 place count 767 transition count 488
Reduce places removed 72 places and 0 transitions.
Iterating post reduction 2 with 72 rules applied. Total rules applied 864 place count 695 transition count 488
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 3 with 1 rules applied. Total rules applied 865 place count 694 transition count 487
Reduce places removed 204 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 331 transitions
Trivial Post-agglo rules discarded 331 transitions
Performed 331 trivial Post agglomeration. Transition count delta: 331
Iterating post reduction 3 with 535 rules applied. Total rules applied 1400 place count 490 transition count 156
Reduce places removed 331 places and 0 transitions.
Iterating post reduction 4 with 331 rules applied. Total rules applied 1731 place count 159 transition count 156
Performed 52 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 52 Pre rules applied. Total rules applied 1731 place count 159 transition count 104
Deduced a syphon composed of 52 places in 0 ms
Reduce places removed 52 places and 0 transitions.
Iterating global reduction 5 with 104 rules applied. Total rules applied 1835 place count 107 transition count 104
Applied a total of 1835 rules in 330 ms. Remains 107 /1127 variables (removed 1020) and now considering 104/920 (removed 816) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 341 ms. Remains : 107/1127 places, 104/920 transitions.
// Phase 1: matrix 104 rows 107 cols
[2026-05-25 05:09:08] [INFO ] Computed 54 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0] Max Struct:[1]
RANDOM walk for 1000000 steps (9506 resets) in 7648 ms. (130 steps per ms)
FORMULA AutoFlight-PT-48a-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (356 resets) in 1428 ms. (699 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 5 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 05:09:17] [INFO ] Flatten gal took : 42 ms
[2026-05-25 05:09:17] [INFO ] Flatten gal took : 15 ms
[2026-05-25 05:09:17] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8345229313503348835.gal : 8 ms
[2026-05-25 05:09:17] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality16598834515855305758.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/ReachabilityCardinality8345229313503348835.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality16598834515855305758.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

its-reach command run as :

ITS tools runner thread asked to quit. Dying gracefully.
/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
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.ensureOpen(BufferedInputStream.java:206)
at java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:411)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:405)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:350)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:393)
at java.base/sun.nio.cs.StreamDecoder.lockedRead(StreamDecoder.java:217)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:171)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:188)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:160)
at java.base/java.io.BufferedReader.implReadLine(BufferedReader.java:370)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:347)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:436)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:1583)
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 16759 ms.

BK_STOP 1779685757563

--------------------
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
++ 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 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="AutoFlight-PT-48a"
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 AutoFlight-PT-48a, 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-oct2-177944372500072"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-48a.tgz
mv AutoFlight-PT-48a 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 ;