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.r072-tall-177946970400286.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 CopsAndRobbers-PT-CRL015X005, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r072-tall-177946970400286
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 516K
-rw-r--r-- 1 mcc users 8.2K Mar 6 13:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 13:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.6K Mar 6 13:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 6 13:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 15 08:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 15 08:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Mar 15 08:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 6 13:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 125K Mar 6 13:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Mar 6 13:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 6 13:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 15 08:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 11 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 80K 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 ReachabilityDeadlock

=== Now, execution of the tool begins

BK_START 1779523852376

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CopsAndRobbers-PT-CRL015X005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityDeadlock PT
Running Version 202604301425
[2026-05-23 08:10:53] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-23 08:10:53] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 08:10:53] [INFO ] Load time of PNML (sax parser for PT used): 56 ms
[2026-05-23 08:10:53] [INFO ] Transformed 85 places.
[2026-05-23 08:10:53] [INFO ] Transformed 109 transitions.
[2026-05-23 08:10:53] [INFO ] Parsed PT model containing 85 places and 109 transitions and 504 arcs in 141 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 3 ms.
Working with output stream class java.io.PrintStream
Built sparse matrix representations for Structural reductions in 5 ms.14565KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 85/85 places, 109/109 transitions.
Computed a total of 4 stabilizing places and 31 stable transitions
Graph (complete) has 490 edges and 85 vertex of which 70 are kept as prefixes of interest. Removing 15 places using SCC suffix rule.4 ms
Discarding 15 places :
Also discarding 0 output transitions
Computed a total of 4 stabilizing places and 31 stable transitions
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 1 place count 70 transition count 108
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 3 place count 69 transition count 108
Computed a total of 4 stabilizing places and 31 stable transitions
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 5 place count 68 transition count 107
Computed a total of 4 stabilizing places and 31 stable transitions
Computed a total of 4 stabilizing places and 31 stable transitions
Applied a total of 5 rules in 47 ms. Remains 68 /85 variables (removed 17) and now considering 107/109 (removed 2) transitions.
Running 77 sub problems to find dead transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-9667505230926736652.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-1462065543789594051.kers'
[2026-05-23 08:10:53] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-9667505230926736652.kers, --Pflows, --basisKERS=/tmp/petrispot-output-1462065543789594051.kers]
Culling duplicate invariants (modulo rational): removing 15 columns.
Culled 15 columns in 0 ms.
// Phase 1: matrix 107 rows 53 cols 305 entries
Finished phase 1 with 50 SingleSign rule and 0 generalized
[2026-05-23 08:10:53] [INFO ] Computed 18 invariants in 0 ms
Computed 18 P flows in 1 ms.
Exported basis to /tmp/petrispot-output-1462065543789594051.kers
Total runtime 1 ms.
[2026-05-23 08:10:53] [INFO ] State equation strengthened by 30 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/66 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/66 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (OVERLAPS) 2/68 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/68 variables, 0/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (OVERLAPS) 107/175 variables, 68/86 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/175 variables, 30/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 0/116 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (OVERLAPS) 0/175 variables, 1/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/175 variables, 0/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 9 (OVERLAPS) 0/175 variables, 1/118 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/175 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 11 (OVERLAPS) 0/175 variables, 0/118 constraints. Problems are: Problem set: 0 solved, 77 unsolved
No progress, stopping.
After SMT solving in domain Real declared 175/175 variables, and 118 constraints, problems are : Problem set: 0 solved, 77 unsolved in 10434 ms.
Refiners :[Positive P Invariants (semi-flows): 18/18 constraints, State Equation: 68/68 constraints, ReadFeed: 30/30 constraints, PredecessorRefiner: 77/77 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 1/1 constraints]
Escalating to Integer solving :Problem set: 0 solved, 77 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/66 variables, 16/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/66 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 2 (OVERLAPS) 2/68 variables, 2/18 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/68 variables, 1/19 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/68 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 5 (OVERLAPS) 107/175 variables, 68/87 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/175 variables, 30/117 constraints. Problems are: Problem set: 0 solved, 77 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/175 variables, 77/194 constraints. Problems are: Problem set: 0 solved, 77 unsolved
SMT process timed out in 30610ms, After SMT, problems are : Problem set: 0 solved, 77 unsolved
Search for dead transitions found 0 dead transitions in 30624ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 30724 ms. Remains : 68/85 places, 107/109 transitions.
Random walk for 1250004 steps, including 0 resets, run took 893 ms (no deadlock found). (steps per millisecond=1399 )
Random directed walk for 1250000 steps, including 0 resets, run took 718 ms (no deadlock found). (steps per millisecond=1740 )
[2026-05-23 08:11:26] [INFO ] Invariant cache hit.
[2026-05-23 08:11:26] [INFO ] [Real]Absence check using 18 positive place invariants in 3 ms returned sat
[2026-05-23 08:11:26] [INFO ] [Real]Absence check using state equation in 30 ms returned sat
[2026-05-23 08:11:26] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 08:11:26] [INFO ] [Nat]Absence check using 18 positive place invariants in 4 ms returned sat
[2026-05-23 08:11:26] [INFO ] [Nat]Absence check using state equation in 38 ms returned sat
[2026-05-23 08:11:26] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 08:11:26] [INFO ] [Nat]Added 30 Read/Feed constraints in 46 ms returned sat
[2026-05-23 08:11:26] [INFO ] Computed and/alt/rep : 45/135/45 causal constraints (skipped 32 transitions) in 9 ms.
[2026-05-23 08:11:26] [INFO ] Added : 6 causal constraints over 2 iterations in 90 ms. Result :sat
Parikh directed walk for 2400 steps, including 152 resets, run took 7 ms. (steps per millisecond=342 )
Random directed walk for 500003 steps, including 0 resets, run took 280 ms (no deadlock found). (steps per millisecond=1785 )
Random walk for 500003 steps, including 0 resets, run took 285 ms (no deadlock found). (steps per millisecond=1754 )
Random directed walk for 500004 steps, including 0 resets, run took 279 ms (no deadlock found). (steps per millisecond=1792 )
Random walk for 500003 steps, including 0 resets, run took 272 ms (no deadlock found). (steps per millisecond=1838 )
Starting structural reductions in DEADLOCK mode, iteration 0 : 68/68 places, 107/107 transitions.
Computed a total of 4 stabilizing places and 31 stable transitions
Computed a total of 4 stabilizing places and 31 stable transitions
Computed a total of 4 stabilizing places and 31 stable transitions
Applied a total of 0 rules in 7 ms. Remains 68 /68 variables (removed 0) and now considering 107/107 (removed 0) transitions.
[2026-05-23 08:11:27] [INFO ] Invariant cache hit.
[2026-05-23 08:11:27] [INFO ] Implicit Places using invariants in 70 ms returned []
[2026-05-23 08:11:27] [INFO ] Invariant cache hit.
[2026-05-23 08:11:27] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 08:11:27] [INFO ] Implicit Places using invariants and state equation in 284 ms returned []
Implicit Place search using SMT with State Equation took 357 ms to find 0 implicit places.
[2026-05-23 08:11:27] [INFO ] Redundant transitions in 6 ms returned []
Skipped dead transition search.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 377 ms. Remains : 68/68 places, 107/107 transitions.
Random walk for 1250004 steps, including 0 resets, run took 684 ms (no deadlock found). (steps per millisecond=1827 )
Random directed walk for 1250000 steps, including 0 resets, run took 680 ms (no deadlock found). (steps per millisecond=1838 )
[2026-05-23 08:11:29] [INFO ] Invariant cache hit.
[2026-05-23 08:11:29] [INFO ] [Real]Absence check using 18 positive place invariants in 4 ms returned sat
[2026-05-23 08:11:29] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2026-05-23 08:11:29] [INFO ] Solution in real domain found non-integer solution.
[2026-05-23 08:11:29] [INFO ] [Nat]Absence check using 18 positive place invariants in 4 ms returned sat
[2026-05-23 08:11:29] [INFO ] [Nat]Absence check using state equation in 37 ms returned sat
[2026-05-23 08:11:29] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-23 08:11:29] [INFO ] [Nat]Added 30 Read/Feed constraints in 46 ms returned sat
[2026-05-23 08:11:29] [INFO ] Computed and/alt/rep : 45/135/45 causal constraints (skipped 32 transitions) in 8 ms.
[2026-05-23 08:11:29] [INFO ] Added : 6 causal constraints over 2 iterations in 90 ms. Result :sat
Parikh directed walk for 2400 steps, including 151 resets, run took 8 ms. (steps per millisecond=300 )
Random directed walk for 500000 steps, including 0 resets, run took 276 ms (no deadlock found). (steps per millisecond=1811 )
Finished random walk after 14 steps, including 0 resets, run found a deadlock after 1 ms. (steps per millisecond=14 )
FORMULA ReachabilityDeadlock TRUE TECHNIQUES TOPOLOGICAL STRUCTURAL_REDUCTION RANDOM_WALK
Total runtime 36310 ms.

BK_STOP 1779523889868

--------------------
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
+ [[ ReachabilityDeadlock = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityDeadlock -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_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityDeadlock -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="CopsAndRobbers-PT-CRL015X005"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="itstools"
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 itstools"
echo " Input is CopsAndRobbers-PT-CRL015X005, examination is ReachabilityDeadlock"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r072-tall-177946970400286"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CopsAndRobbers-PT-CRL015X005.tgz
mv CopsAndRobbers-PT-CRL015X005 execution
cd execution
if [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "UpperBounds" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] || [ "ReachabilityDeadlock" = "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 [ "ReachabilityDeadlock" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityDeadlock" != "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 "ReachabilityDeadlock.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 '' ReachabilityDeadlock.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityDeadlock"
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 ;