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.r159-tall-177961079800063.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 GPUForwardProgress-PT-32b, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r159-tall-177961079800063
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 552K
-rw-r--r-- 1 mcc users 6.9K Mar 7 11:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 72K Mar 7 11:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Mar 7 11:38 CTLFireability.txt
-rw-r--r-- 1 mcc users 59K Mar 7 11:38 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:39 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 10:39 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 15 10:39 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 10:39 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.0K Mar 7 11:38 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 75K Mar 7 11:38 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K Mar 7 11:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Mar 7 11:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 10:39 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:39 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 160K 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 GPUForwardProgress-PT-32b-UpperBounds-00
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-01
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-02
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-03
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-04
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-05
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-06
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-07
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-08
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-09
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-10
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-11
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-12
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-13
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-14
FORMULA_NAME GPUForwardProgress-PT-32b-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1779707447808

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=GPUForwardProgress-PT-32b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202505121319
[2026-05-25 11:10:49] [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 11:10:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 11:10:49] [INFO ] Load time of PNML (sax parser for PT used): 95 ms
[2026-05-25 11:10:49] [INFO ] Transformed 644 places.
[2026-05-25 11:10:49] [INFO ] Transformed 677 transitions.
[2026-05-25 11:10:49] [INFO ] Found NUPN structural information;
[2026-05-25 11:10:49] [INFO ] Parsed PT model containing 644 places and 677 transitions and 1677 arcs in 192 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
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 677 rows 644 cols
[2026-05-25 11:10:49] [INFO ] Computed 34 invariants in 29 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 (33 resets) in 59 ms. (166 steps per ms)
FORMULA GPUForwardProgress-PT-32b-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA GPUForwardProgress-PT-32b-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 20002 steps (7 resets) in 24 ms. (800 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2026-05-25 11:10:49] [INFO ] Invariant cache hit.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:10:50] [INFO ] [Real]Absence check using 0 positive and 34 generalized place invariants in 25 ms returned sat
[2026-05-25 11:10:50] [INFO ] [Real]Absence check using state equation in 362 ms returned sat
[2026-05-25 11:10:50] [INFO ] Computed and/alt/rep : 671/1221/671 causal constraints (skipped 5 transitions) in 65 ms.
[2026-05-25 11:10:51] [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 11:10:51] [INFO ] [Nat]Absence check using 0 positive and 34 generalized place invariants in 248 ms returned sat
[2026-05-25 11:10:51] [INFO ] [Nat]Absence check using state equation in 403 ms returned sat
[2026-05-25 11:10:52] [INFO ] Computed and/alt/rep : 671/1221/671 causal constraints (skipped 5 transitions) in 137 ms.
[2026-05-25 11:10:52] [INFO ] Added : 79 causal constraints over 16 iterations in 993 ms. Result :sat
Minimization took 571 ms.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 11:10:53] [INFO ] [Real]Absence check using 0 positive and 34 generalized place invariants in 24 ms returned sat
[2026-05-25 11:10:53] [INFO ] [Real]Absence check using state equation in 183 ms returned sat
[2026-05-25 11:10:54] [INFO ] Computed and/alt/rep : 671/1221/671 causal constraints (skipped 5 transitions) in 77 ms.
[2026-05-25 11:10:54] [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 11:10:54] [INFO ] [Nat]Absence check using 0 positive and 34 generalized place invariants in 28 ms returned sat
[2026-05-25 11:10:54] [INFO ] [Nat]Absence check using state equation in 165 ms returned sat
[2026-05-25 11:10:54] [INFO ] Computed and/alt/rep : 671/1221/671 causal constraints (skipped 5 transitions) in 34 ms.
[2026-05-25 11:10:56] [INFO ] Added : 175 causal constraints over 35 iterations in 1694 ms. Result :sat
Minimization took 507 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 0] Max Struct:[1, 1]
Support contains 2 out of 644 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 644/644 places, 677/677 transitions.
Graph (trivial) has 574 edges and 644 vertex of which 7 / 644 are part of one of the 1 SCC in 4 ms
Free SCC test removed 6 places
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Ensure Unique test removed 1 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 363 transitions
Trivial Post-agglo rules discarded 363 transitions
Performed 363 trivial Post agglomeration. Transition count delta: 363
Iterating post reduction 0 with 364 rules applied. Total rules applied 365 place count 637 transition count 306
Reduce places removed 363 places and 0 transitions.
Ensure Unique test removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 396 rules applied. Total rules applied 761 place count 274 transition count 273
Reduce places removed 1 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 2 with 3 rules applied. Total rules applied 764 place count 273 transition count 271
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 3 with 2 rules applied. Total rules applied 766 place count 271 transition count 271
Performed 65 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 65 Pre rules applied. Total rules applied 766 place count 271 transition count 206
Deduced a syphon composed of 65 places in 1 ms
Reduce places removed 65 places and 0 transitions.
Iterating global reduction 4 with 130 rules applied. Total rules applied 896 place count 206 transition count 206
Discarding 4 places :
Symmetric choice reduction at 4 with 4 rule applications. Total rules 900 place count 202 transition count 202
Iterating global reduction 4 with 4 rules applied. Total rules applied 904 place count 202 transition count 202
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 905 place count 202 transition count 201
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 2 Pre rules applied. Total rules applied 905 place count 202 transition count 199
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 5 with 4 rules applied. Total rules applied 909 place count 200 transition count 199
Performed 96 Post agglomeration using F-continuation condition.Transition count delta: 96
Deduced a syphon composed of 96 places in 0 ms
Reduce places removed 96 places and 0 transitions.
Iterating global reduction 5 with 192 rules applied. Total rules applied 1101 place count 104 transition count 103
Drop transitions (Empty/Sink Transition effects.) removed 31 transitions
Reduce isomorphic transitions removed 31 transitions.
Iterating post reduction 5 with 31 rules applied. Total rules applied 1132 place count 104 transition count 72
Free-agglomeration rule applied 2 times.
Iterating global reduction 6 with 2 rules applied. Total rules applied 1134 place count 104 transition count 70
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 6 with 2 rules applied. Total rules applied 1136 place count 102 transition count 70
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 7 with 1 rules applied. Total rules applied 1137 place count 101 transition count 69
Applied a total of 1137 rules in 158 ms. Remains 101 /644 variables (removed 543) and now considering 69/677 (removed 608) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 165 ms. Remains : 101/644 places, 69/677 transitions.
// Phase 1: matrix 69 rows 101 cols
[2026-05-25 11:10:56] [INFO ] Computed 33 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 0] Max Struct:[1, 1]
FORMULA GPUForwardProgress-PT-32b-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (9806 resets) in 3351 ms. (298 steps per ms)
FORMULA GPUForwardProgress-PT-32b-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (644 resets) in 856 ms. (1166 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 11:11:01] [INFO ] Flatten gal took : 38 ms
[2026-05-25 11:11:01] [INFO ] Flatten gal took : 12 ms
[2026-05-25 11:11:01] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13872100940756061083.gal : 8 ms
[2026-05-25 11:11:01] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality12445094902728751562.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/ReachabilityCardinality13872100940756061083.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality12445094902728751562.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 ...330
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 12260 ms.

BK_STOP 1779707461524

--------------------
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="GPUForwardProgress-PT-32b"
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 GPUForwardProgress-PT-32b, 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 r159-tall-177961079800063"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/GPUForwardProgress-PT-32b.tgz
mv GPUForwardProgress-PT-32b 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 ;