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.r144-smll-177955812600197.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)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is FlexibleBarrier-PT-04b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r144-smll-177955812600197
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 480K
-rw-r--r-- 1 mcc users 7.3K Mar 7 05:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 77K Mar 7 05:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Mar 7 05:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 45K Mar 7 05:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Mar 15 10:10 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 15 10:10 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Mar 15 10:10 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 10:10 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K Mar 7 05:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Mar 7 05:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 49K Mar 7 05:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 10:10 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:10 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 69K 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 1779635710529

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=FlexibleBarrier-PT-04b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-24 15:15:12] [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]
[2026-05-24 15:15:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-24 15:15:13] [INFO ] Load time of PNML (sax parser for PT used): 127 ms
[2026-05-24 15:15:13] [INFO ] Transformed 268 places.
[2026-05-24 15:15:13] [INFO ] Transformed 305 transitions.
[2026-05-24 15:15:13] [INFO ] Found NUPN structural information;
[2026-05-24 15:15:13] [INFO ] Parsed PT model containing 268 places and 305 transitions and 743 arcs in 272 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 268/268 places, 305/305 transitions.
Graph (trivial) has 254 edges and 268 vertex of which 26 / 268 are part of one of the 4 SCC in 21 ms
Free SCC test removed 22 places
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 77 transitions
Trivial Post-agglo rules discarded 77 transitions
Performed 77 trivial Post agglomeration. Transition count delta: 77
Iterating post reduction 0 with 77 rules applied. Total rules applied 78 place count 246 transition count 205
Reduce places removed 77 places and 0 transitions.
Iterating post reduction 1 with 77 rules applied. Total rules applied 155 place count 169 transition count 205
Performed 12 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 12 Pre rules applied. Total rules applied 155 place count 169 transition count 193
Deduced a syphon composed of 12 places in 1 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 2 with 24 rules applied. Total rules applied 179 place count 157 transition count 193
Performed 95 Post agglomeration using F-continuation condition.Transition count delta: 95
Deduced a syphon composed of 95 places in 1 ms
Reduce places removed 95 places and 0 transitions.
Iterating global reduction 2 with 190 rules applied. Total rules applied 369 place count 62 transition count 98
Applied a total of 369 rules in 105 ms. Remains 62 /268 variables (removed 206) and now considering 98/305 (removed 207) transitions.
[2026-05-24 15:15:13] [INFO ] Flow matrix only has 87 transitions (discarded 11 similar events)
// Phase 1: matrix 87 rows 62 cols
[2026-05-24 15:15:13] [INFO ] Computed 6 invariants in 14 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:15:13] [INFO ] Implicit Places using invariants in 453 ms returned []
[2026-05-24 15:15:13] [INFO ] Flow matrix only has 87 transitions (discarded 11 similar events)
[2026-05-24 15:15:13] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-24 15:15:13] [INFO ] State equation strengthened by 25 read => feed constraints.
[2026-05-24 15:15:14] [INFO ] Implicit Places using invariants and state equation in 269 ms returned []
Implicit Place search using SMT with State Equation took 773 ms to find 0 implicit places.
Running 97 sub problems to find dead transitions.
[2026-05-24 15:15:14] [INFO ] Flow matrix only has 87 transitions (discarded 11 similar events)
[2026-05-24 15:15:14] [INFO ] Invariant cache hit.
[2026-05-24 15:15:14] [INFO ] State equation strengthened by 25 read => feed constraints.
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/61 variables, 61/61 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/61 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 2 (OVERLAPS) 1/62 variables, 6/67 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/62 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/62 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 5 (OVERLAPS) 86/148 variables, 62/130 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/148 variables, 24/154 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/148 variables, 0/154 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 8 (OVERLAPS) 1/149 variables, 1/155 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/149 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 10 (OVERLAPS) 0/149 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 97 unsolved
No progress, stopping.
After SMT solving in domain Real declared 149/149 variables, and 155 constraints, problems are : Problem set: 0 solved, 97 unsolved in 6976 ms.
Refiners :[Domain max(s): 62/62 constraints, Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 62/62 constraints, ReadFeed: 25/25 constraints, PredecessorRefiner: 97/97 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 97 unsolved
Starting Z3 with timeout 30.0 s and query timeout 3000.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/61 variables, 61/61 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/61 variables, 0/61 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 2 (OVERLAPS) 1/62 variables, 6/67 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/62 variables, 1/68 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/62 variables, 0/68 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 5 (OVERLAPS) 86/148 variables, 62/130 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/148 variables, 24/154 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/148 variables, 97/251 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/148 variables, 0/251 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 9 (OVERLAPS) 1/149 variables, 1/252 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/149 variables, 0/252 constraints. Problems are: Problem set: 0 solved, 97 unsolved
At refinement iteration 11 (OVERLAPS) 0/149 variables, 0/252 constraints. Problems are: Problem set: 0 solved, 97 unsolved
No progress, stopping.
After SMT solving in domain Int declared 149/149 variables, and 252 constraints, problems are : Problem set: 0 solved, 97 unsolved in 9492 ms.
Refiners :[Domain max(s): 62/62 constraints, Positive P Invariants (semi-flows): 6/6 constraints, State Equation: 62/62 constraints, ReadFeed: 25/25 constraints, PredecessorRefiner: 97/97 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 16609ms problems are : Problem set: 0 solved, 97 unsolved
Search for dead transitions found 0 dead transitions in 16628ms
Starting structural reductions in LIVENESS mode, iteration 1 : 62/268 places, 98/305 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 17538 ms. Remains : 62/268 places, 98/305 transitions.
Discarding 51 transitions out of 98. Remains 47
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (3884 resets) in 2356 ms. (16 steps per ms) remains 8/46 properties
[2026-05-24 15:15:31] [INFO ] Flatten gal took : 66 ms
[2026-05-24 15:15:31] [INFO ] Flatten gal took : 47 ms
BEST_FIRST walk for 40004 steps (317 resets) in 287 ms. (138 steps per ms) remains 8/8 properties
[2026-05-24 15:15:31] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12820356584847135786.gal : 23 ms
[2026-05-24 15:15:31] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7681189390428260606.prop : 3 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/ReachabilityCardinality12820356584847135786.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7681189390428260606.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 ...329
BEST_FIRST walk for 40003 steps (318 resets) in 244 ms. (163 steps per ms) remains 8/8 properties
Loading property file /tmp/ReachabilityCardinality7681189390428260606.prop.
SDD proceeding with computation,8 properties remain. new max is 4
SDD size :1 after 289
SDD proceeding with computation,8 properties remain. new max is 8
SDD size :289 after 15121
SDD proceeding with computation,8 properties remain. new max is 16
SDD size :15121 after 24011
Reachability property qltransition_84 is true.
Reachability property qltransition_83 is true.
SDD proceeding with computation,6 properties remain. new max is 16
SDD size :24011 after 77295
SDD proceeding with computation,6 properties remain. new max is 32
SDD size :77295 after 79941
Reachability property qltransition_71 is true.
Reachability property qltransition_70 is true.
SDD proceeding with computation,4 properties remain. new max is 32
SDD size :79941 after 88117
Reachability property qltransition_85 is true.
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :88117 after 95537
Reachability property qltransition_72 is true.
SDD proceeding with computation,2 properties remain. new max is 32
SDD size :95537 after 182701
SDD proceeding with computation,2 properties remain. new max is 64
SDD size :182701 after 233171
Reachability property qltransition_82 is true.
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :311041 after 344161
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,449281,0.071936,5296,2,760,23,7121,7,0,347,4485,0
Total reachable state count : 449281

Verifying 8 reachability properties.
Reachability property qltransition_70 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_70,2520,0.07249,5424,2,160,23,7121,8,0,352,4485,0
Reachability property qltransition_71 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_71,4620,0.072925,5552,2,225,23,7121,9,0,355,4485,0
Reachability property qltransition_72 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_72,9240,0.073258,5552,2,333,23,7121,10,0,358,4485,0
Reachability property qltransition_73 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_73,12960,0.073631,5552,2,503,23,7121,10,0,359,4485,0
Reachability property qltransition_82 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_82,12960,0.074005,5552,2,503,23,7121,11,0,362,4485,0
Reachability property qltransition_83 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_83,4620,0.074332,5552,2,225,23,7121,12,0,365,4485,0
Reachability property qltransition_84 is true.
BEST_FIRST walk for 40004 steps (318 resets) in 212 ms. (187 steps per ms) remains 8/8 properties

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_84,2520,0.074673,5552,2,160,23,7121,13,0,368,4485,0
Reachability property qltransition_85 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_85,9240,0.075038,5552,2,333,23,7121,14,0,371,4485,0
BEST_FIRST walk for 40004 steps (317 resets) in 116 ms. (341 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (312 resets) in 135 ms. (294 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (315 resets) in 117 ms. (339 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (316 resets) in 115 ms. (344 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (312 resets) in 112 ms. (354 steps per ms) remains 8/8 properties
Able to resolve query QuasiLiveness after proving 47 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL INITIAL_STATE
Total runtime 19179 ms.

BK_STOP 1779635732130

--------------------
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="FlexibleBarrier-PT-04b"
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 FlexibleBarrier-PT-04b, 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 r144-smll-177955812600197"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-04b.tgz
mv FlexibleBarrier-PT-04b 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 ;