fond
Model Checking Contest 2026
16th edition, Hamburg, Germany, June 23, 2026
Execution of r176-smll-177961112000323
Last Updated
Jun 17, 2026

About the Execution of 2025-gold for LeafsetExtension-PT-S32C4

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
638.548 22352.00 68377.00 196.20 F normal

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.r176-smll-177961112000323.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 LeafsetExtension-PT-S32C4, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r176-smll-177961112000323
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.9M
-rw-r--r-- 1 mcc users 14K Mar 7 16:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 102K Mar 7 16:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 9.8K Mar 7 16:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Mar 7 16:53 CTLFireability.xml
-rw-r--r-- 1 mcc users 6.3K Mar 15 11:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 11:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 4.8K Mar 15 11:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 22K Mar 15 11:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Mar 7 16:53 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 97K Mar 7 16:53 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K Mar 7 16:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 67K Mar 7 16:53 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 11:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.3K Mar 15 11:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 3.4M 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 StableMarking

=== Now, execution of the tool begins

BK_START 1779772912871

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=LeafsetExtension-PT-S32C4
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
StableMarking PT
Running Version 202505121319
[2026-05-26 05:21:55] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-26 05:21:55] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-26 05:21:56] [INFO ] Load time of PNML (sax parser for PT used): 552 ms
[2026-05-26 05:21:56] [INFO ] Transformed 5622 places.
[2026-05-26 05:21:56] [INFO ] Transformed 5449 transitions.
[2026-05-26 05:21:56] [INFO ] Parsed PT model containing 5622 places and 5449 transitions and 17500 arcs in 783 ms.
[2026-05-26 05:21:58] [INFO ] Flatten gal took : 1159 ms
[2026-05-26 05:21:59] [INFO ] Flatten gal took : 414 ms
[2026-05-26 05:21:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11015311685704677982.gal : 272 ms
[2026-05-26 05:21:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14320312308517517063.prop : 99 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/ReachabilityCardinality11015311685704677982.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14320312308517517063.prop' '--nowitness' '--gen-order' 'FOLLOW'

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
Loading property file /tmp/ReachabilityCardinality14320312308517517063.prop.
RANDOM walk for 40000 steps (1198 resets) in 20894 ms. (1 steps per ms) remains 42/5622 properties
BEST_FIRST walk for 4004 steps (8 resets) in 30 ms. (129 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 42/42 properties
BEST_FIRST walk for 4004 steps (8 resets) in 55 ms. (71 steps per ms) remains 41/42 properties
BEST_FIRST walk for 4004 steps (8 resets) in 48 ms. (81 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4002 steps (8 resets) in 31 ms. (125 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 21 ms. (181 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 27 ms. (143 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 13 ms. (285 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 79 ms. (50 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4003 steps (8 resets) in 12 ms. (307 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 41/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 39/41 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 39/39 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 39/39 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 39/39 properties
BEST_FIRST walk for 4004 steps (8 resets) in 33 ms. (117 steps per ms) remains 39/39 properties
BEST_FIRST walk for 4004 steps (8 resets) in 22 ms. (174 steps per ms) remains 38/39 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4003 steps (8 resets) in 26 ms. (148 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (8 resets) in 19 ms. (200 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 38/38 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 38/38 properties
// Phase 1: matrix 5449 rows 5622 cols
[2026-05-26 05:22:04] [INFO ] Computed 173 invariants in 690 ms
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/38 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 1 (OVERLAPS) 5010/5048 variables, 29/29 constraints. Problems are: Problem set: 0 solved, 38 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 5048/11071 variables, and 29 constraints, problems are : Problem set: 0 solved, 38 unsolved in 5146 ms.
Refiners :[Positive P Invariants (semi-flows): 0/35 constraints, Generalized P Invariants (flows): 29/138 constraints, State Equation: 0/5622 constraints, PredecessorRefiner: 38/38 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 38 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/38 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 38 unsolved
At refinement iteration 1 (OVERLAPS) 5010/5048 variables, 29/29 constraints. Problems are: Problem set: 0 solved, 38 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 5048/11071 variables, and 29 constraints, problems are : Problem set: 0 solved, 38 unsolved in 5023 ms.
Refiners :[Positive P Invariants (semi-flows): 0/35 constraints, Generalized P Invariants (flows): 29/138 constraints, State Equation: 0/5622 constraints, PredecessorRefiner: 0/38 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 11159ms problems are : Problem set: 0 solved, 38 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 38 out of 5622 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 5622/5622 places, 5449/5449 transitions.
Graph (complete) has 11001 edges and 5622 vertex of which 489 are kept as prefixes of interest. Removing 5133 places using SCC suffix rule.16 ms
Discarding 5133 places :
Also discarding 2894 output transitions
Drop transitions (Output transitions of discarded places.) removed 2894 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1102 transitions
Reduce isomorphic transitions removed 1102 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 154 transitions
Trivial Post-agglo rules discarded 154 transitions
Performed 154 trivial Post agglomeration. Transition count delta: 154
Iterating post reduction 0 with 1256 rules applied. Total rules applied 1257 place count 489 transition count 1299
Reduce places removed 156 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 1 with 166 rules applied. Total rules applied 1423 place count 333 transition count 1289
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 2 with 10 rules applied. Total rules applied 1433 place count 323 transition count 1289
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 10 Pre rules applied. Total rules applied 1433 place count 323 transition count 1279
Deduced a syphon composed of 10 places in 0 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 3 with 20 rules applied. Total rules applied 1453 place count 313 transition count 1279
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 3 with 1 rules applied. Total rules applied 1454 place count 313 transition count 1278
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 1455 place count 312 transition count 1278
Partial Free-agglomeration rule applied 120 times.
Drop transitions (Partial Free agglomeration) removed 120 transitions
Iterating global reduction 4 with 120 rules applied. Total rules applied 1575 place count 312 transition count 1278
Discarding 8 places :
Implicit places reduction removed 8 places
Iterating post reduction 4 with 8 rules applied. Total rules applied 1583 place count 304 transition count 1278
Free-agglomeration rule (complex) applied 4 times.
Iterating global reduction 5 with 4 rules applied. Total rules applied 1587 place count 304 transition count 1274
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 5 with 4 rules applied. Total rules applied 1591 place count 300 transition count 1274
Applied a total of 1591 rules in 315 ms. Remains 300 /5622 variables (removed 5322) and now considering 1274/5449 (removed 4175) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 326 ms. Remains : 300/5622 places, 1274/5449 transitions.
RANDOM walk for 7796 steps (756 resets) in 329 ms. (23 steps per ms) remains 0/38 properties
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query StableMarking after proving 5622 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL
Total runtime 19684 ms.

BK_STOP 1779772935223

--------------------
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
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution StableMarking -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 StableMarking -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="LeafsetExtension-PT-S32C4"
export BK_EXAMINATION="StableMarking"
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 LeafsetExtension-PT-S32C4, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r176-smll-177961112000323"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LeafsetExtension-PT-S32C4.tgz
mv LeafsetExtension-PT-S32C4 execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;