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.r162-smll-177961107800359.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 itstools
Input is LamportFastMutEx-COL-4, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r162-smll-177961107800359
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 552K
-rw-r--r-- 1 mcc users 7.4K Mar 7 16:44 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K Mar 7 16:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Mar 7 16:44 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Mar 7 16:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K Mar 15 11:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 11:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 11:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 11:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 18K Mar 7 16:44 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 178K Mar 7 16:44 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.8K Mar 7 16:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K Mar 7 16:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 11:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 11:11 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 equiv_pt
-rw-r--r-- 1 mcc users 2 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 5 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 40K 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

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-00
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-01
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-02
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-03
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-04
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-05
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-06
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-07
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-08
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-09
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-10
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-11
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-12
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-13
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-14
FORMULA_NAME LamportFastMutEx-COL-4-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779842640411

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LamportFastMutEx-COL-4
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
ReachabilityFireability COL
Running Version 202604301425
[2026-05-27 00:44:02] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-05-27 00:44:02] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-27 00:44:02] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2026-05-27 00:44:03] [WARNING] Using fallBack plugin, rng conformance not checked
[2026-05-27 00:44:04] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1324 ms
[2026-05-27 00:44:04] [INFO ] Imported 18 HL places and 17 HL transitions for a total of 135 PT places and 285.0 transition bindings in 39 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 40 ms.
Reduction of identical properties reduced properties to check from 16 to 11
Working with output stream class java.io.PrintStream
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2026-05-27 00:44:04] [INFO ] Built PT skeleton of HLPN with 18 places and 17 transitions 68 arcs in 9 ms.
[2026-05-27 00:44:04] [INFO ] Skeletonized 9 HLPN properties in 0 ms.
All 9 properties of the HLPN use transition enablings in a way that makes the skeleton too coarse.
Domain [pid(5), pid(5)] of place P_wait breaks symmetries in sort pid
Symmetric sort wr.t. initial and guards and successors and join/free detected :P_bool
Arc [3:1*[$i, 1]] contains constants of sort P_bool
Transition T_setbi_2 : constants on arcs in [[3:1*[$i, 1]]] introduces in P_bool(2) partition with 1 elements that refines current partition to 2 subsets.
[2026-05-27 00:44:04] [INFO ] Unfolded HLPN to a Petri net with 135 places and 230 transitions 990 arcs in 75 ms.
[2026-05-27 00:44:04] [INFO ] Unfolded 9 HLPN properties in 2 ms.
Deduced a syphon composed of 33 places in 3 ms
Reduce places removed 33 places and 50 transitions.
[2026-05-27 00:44:04] [INFO ] Flatten gal took : 144 ms
[2026-05-27 00:44:05] [INFO ] Flatten gal took : 239 ms
[2026-05-27 00:44:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17792266309259062032.gal : 75 ms
[2026-05-27 00:44:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18307473359902528456.prop : 58 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17792266309259062032.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18307473359902528456.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality18307473359902528456.prop.
RANDOM walk for 40000 steps (8 resets) in 3512 ms. (11 steps per ms) remains 2/9 properties
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
SDD proceeding with computation,9 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,9 properties remain. new max is 8
SDD size :5 after 7
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :7 after 9
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :9 after 62
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :62 after 105
Reachability property LamportFastMutEx-COL-4-ReachabilityFireability-2024-04 is true.
Invariant property LamportFastMutEx-COL-4-ReachabilityFireability-2024-02 does not hold.
SDD proceeding with computation,7 properties remain. new max is 64
SDD size :105 after 197
SDD proceeding with computation,7 properties remain. new max is 128
SDD size :197 after 260
SDD proceeding with computation,7 properties remain. new max is 256
SDD size :260 after 1148
SDD proceeding with computation,7 properties remain. new max is 512
SDD size :1148 after 1805
BEST_FIRST walk for 40004 steps (8 resets) in 2883 ms. (13 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 593 ms. (67 steps per ms) remains 2/2 properties
SDD proceeding with computation,7 properties remain. new max is 1024
SDD size :1805 after 3016
[2026-05-27 00:44:06] [INFO ] Flow matrix only has 144 transitions (discarded 36 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-12574407253372472718.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2079727661473627319.kers'
[2026-05-27 00:44:06] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-12574407253372472718.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2079727661473627319.kers]
Culling duplicate invariants (modulo rational): removing 4 columns.
Culled 4 columns in 0 ms.
// Phase 1: matrix 144 rows 98 cols 432 entries
Finished phase 1 with 76 SingleSign rule and 0 generalized
[2026-05-27 00:44:06] [INFO ] Computed 26 invariants in 1 ms
Computed 26 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-2079727661473627319.kers
Total runtime 2 ms.
[2026-05-27 00:44:06] [INFO ] State equation strengthened by 40 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Problem LamportFastMutEx-COL-4-ReachabilityFireability-2024-05 is UNSAT
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-05 TRUE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/102 variables, 26/26 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/102 variables, 0/26 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 144/246 variables, 102/128 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/246 variables, 40/168 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/246 variables, 0/168 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 0/246 variables, 0/168 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 246/246 variables, and 168 constraints, problems are : Problem set: 1 solved, 1 unsolved in 522 ms.
Refiners :[Positive P Invariants (semi-flows): 26/26 constraints, State Equation: 102/102 constraints, ReadFeed: 40/40 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/97 variables, 5/5 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/97 variables, 0/5 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 5/102 variables, 21/26 constraints. Problems are: Problem set: 1 solved, 1 unsolved
Invariant property LamportFastMutEx-COL-4-ReachabilityFireability-2024-14 does not hold.
Reachability property LamportFastMutEx-COL-4-ReachabilityFireability-2024-07 is true.
Invariant property LamportFastMutEx-COL-4-ReachabilityFireability-2024-03 does not hold.
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :3016 after 21370
Problem LamportFastMutEx-COL-4-ReachabilityFireability-2024-01 is UNSAT
FORMULA LamportFastMutEx-COL-4-ReachabilityFireability-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 102/246 variables, and 45 constraints, problems are : Problem set: 2 solved, 0 unsolved in 2918 ms.
Refiners :[Positive P Invariants (semi-flows): 26/26 constraints, State Equation: 0/102 constraints, ReadFeed: 0/40 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 19/19 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 3558ms problems are : Problem set: 2 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 7614 ms.

BK_STOP 1779842650253

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -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="LamportFastMutEx-COL-4"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
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 itstools"
echo " Input is LamportFastMutEx-COL-4, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r162-smll-177961107800359"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LamportFastMutEx-COL-4.tgz
mv LamportFastMutEx-COL-4 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;