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.r024-smll-177946789600196.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 itstools
Input is BlocksWorld-PT-04, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r024-smll-177946789600196
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 932K
-rw-r--r-- 1 mcc users 7.2K Mar 5 16:51 CTLCardinality.txt
-rw-r--r-- 1 mcc users 65K Mar 5 16:51 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Mar 5 16:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Mar 5 16:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.3K Mar 15 07:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 07:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 15 07:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 07:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.7K Mar 5 16:51 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 58K Mar 5 16:51 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Mar 5 16:51 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 97K Mar 5 16:51 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:26 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 07:26 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 532K 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 1779474932139

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=BlocksWorld-PT-04
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityDeadlock PT
Running Version 202604301425
[2026-05-22 18:35:34] [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]
[2026-05-22 18:35:34] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 18:35:35] [INFO ] Load time of PNML (sax parser for PT used): 349 ms
[2026-05-22 18:35:35] [INFO ] Transformed 599 places.
[2026-05-22 18:35:35] [INFO ] Transformed 1105 transitions.
[2026-05-22 18:35:35] [INFO ] Found NUPN structural information;
[2026-05-22 18:35:35] [INFO ] Completing missing partition info from NUPN : creating a component with [pred_on_table_0, pred_arm_empty_0, pred_on_table_1, pred_on_table_2, pred_on_table_3, pred_on_table_4, pred_on_table_5, pred_on_table_6, pred_on_table_7, pred_on_table_8, pred_on_table_9, pred_on_table_10, pred_on_table_11, pred_on_table_12, pred_on_table_13, pred_on_table_14, pred_on_table_15, pred_on_table_16, pred_on_table_17, pred_on_table_18, pred_on_table_19, pred_on_table_20, pred_on_table_21, pred_on_table_22]
[2026-05-22 18:35:35] [INFO ] Parsed PT model containing 599 places and 1105 transitions and 5512 arcs in 583 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 6 ms.
Working with output stream class java.io.PrintStream
Built sparse matrix representations for Structural reductions in 13 ms.19146KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 599/599 places, 1105/1105 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 465 ms. Remains 599 /599 variables (removed 0) and now considering 1105/1105 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 495 ms. Remains : 599/599 places, 1105/1105 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 599/599 places, 1105/1105 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 198 ms. Remains 599 /599 variables (removed 0) and now considering 1105/1105 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-18226942777801057568.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-16959580919372890648.kers'
[2026-05-22 18:35:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-18226942777801057568.kers, --Pflows, --basisKERS=/tmp/petrispot-output-16959580919372890648.kers]
Normalized transition count is 1104 out of 1105 initially.
Culled 0 columns in 1 ms.
// Phase 1: matrix 1104 rows 599 cols 5382 entries
Finished phase 1 with 552 SingleSign rule and 0 generalized
[2026-05-22 18:35:36] [INFO ] Computed 47 invariants in 9 ms
Computed 47 P flows in 11 ms.
Exported basis to /tmp/petrispot-output-16959580919372890648.kers
Total runtime 13 ms.
[2026-05-22 18:35:38] [INFO ] Implicit Places using invariants in 1881 ms returned []
[2026-05-22 18:35:38] [INFO ] Invariant cache hit.
[2026-05-22 18:35:39] [INFO ] State equation strengthened by 41 read => feed constraints.
[2026-05-22 18:35:40] [INFO ] Implicit Places using invariants and state equation in 2445 ms returned []
Implicit Place search using SMT with State Equation took 4397 ms to find 0 implicit places.
[2026-05-22 18:35:40] [INFO ] Redundant transitions in 113 ms returned []
Running 1102 sub problems to find dead transitions.
[2026-05-22 18:35:40] [INFO ] Invariant cache hit.
[2026-05-22 18:35:40] [INFO ] State equation strengthened by 41 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Problem TDEAD1 is UNSAT
Problem TDEAD24 is UNSAT
Problem TDEAD70 is UNSAT
Problem TDEAD94 is UNSAT
Problem TDEAD118 is UNSAT
Problem TDEAD142 is UNSAT
Problem TDEAD166 is UNSAT
Problem TDEAD190 is UNSAT
Problem TDEAD214 is UNSAT
Problem TDEAD238 is UNSAT
Problem TDEAD262 is UNSAT
Problem TDEAD310 is UNSAT
Problem TDEAD334 is UNSAT
Problem TDEAD358 is UNSAT
Problem TDEAD382 is UNSAT
Problem TDEAD430 is UNSAT
Problem TDEAD454 is UNSAT
Problem TDEAD478 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD550 is UNSAT
Problem TDEAD574 is UNSAT
Problem TDEAD598 is UNSAT
Problem TDEAD642 is UNSAT
Problem TDEAD684 is UNSAT
Problem TDEAD724 is UNSAT
Problem TDEAD762 is UNSAT
Problem TDEAD798 is UNSAT
Problem TDEAD832 is UNSAT
Problem TDEAD864 is UNSAT
Problem TDEAD894 is UNSAT
Problem TDEAD948 is UNSAT
Problem TDEAD972 is UNSAT
Problem TDEAD994 is UNSAT
Problem TDEAD1014 is UNSAT
Problem TDEAD1048 is UNSAT
Problem TDEAD1062 is UNSAT
Problem TDEAD1074 is UNSAT
Problem TDEAD1084 is UNSAT
Problem TDEAD1098 is UNSAT
Problem TDEAD1102 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/596 variables, 41/41 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 596/1704 variables, and 41 constraints, problems are : Problem set: 40 solved, 1062 unsolved in 30078 ms.
Refiners :[Positive P Invariants (semi-flows): 41/47 constraints, State Equation: 0/599 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 1082/553 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 40 solved, 1062 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/576 variables, 4/4 constraints. Problems are: Problem set: 40 solved, 1062 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 576/1704 variables, and 4 constraints, problems are : Problem set: 40 solved, 1062 unsolved in 30058 ms.
Refiners :[Positive P Invariants (semi-flows): 4/47 constraints, State Equation: 0/599 constraints, ReadFeed: 0/41 constraints, PredecessorRefiner: 529/553 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62658ms problems are : Problem set: 40 solved, 1062 unsolved
Search for dead transitions found 40 dead transitions in 62701ms
Found 40 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 40 transitions
Dead transitions reduction (with SMT) removed 40 transitions
Starting structural reductions in DEADLOCK mode, iteration 1 : 599/599 places, 1065/1105 transitions.
Computed a total of 20 stabilizing places and 0 stable transitions
Graph (complete) has 3090 edges and 599 vertex of which 579 are kept as prefixes of interest. Removing 20 places using SCC suffix rule.14 ms
Discarding 20 places :
Also discarding 0 output transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 1 rules in 203 ms. Remains 579 /599 variables (removed 20) and now considering 1065/1065 (removed 0) transitions.
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-14111586983221178657.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-15877648655753442049.kers'
[2026-05-22 18:36:43] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-14111586983221178657.kers, --Pflows, --basisKERS=/tmp/petrispot-output-15877648655753442049.kers]
Normalized transition count is 1064 out of 1065 initially.
Culled 0 columns in 1 ms.
// Phase 1: matrix 1064 rows 579 cols 5262 entries
Finished phase 1 with 532 SingleSign rule and 0 generalized
[2026-05-22 18:36:43] [INFO ] Computed 47 invariants in 9 ms
Computed 47 P flows in 14 ms.
Exported basis to /tmp/petrispot-output-15877648655753442049.kers
Total runtime 17 ms.
[2026-05-22 18:36:44] [INFO ] Implicit Places using invariants in 1104 ms returned []
[2026-05-22 18:36:44] [INFO ] Invariant cache hit.
[2026-05-22 18:36:45] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-22 18:36:46] [INFO ] Implicit Places using invariants and state equation in 1626 ms returned []
Implicit Place search using SMT with State Equation took 2733 ms to find 0 implicit places.
Starting structural reductions in DEADLOCK mode, iteration 2 : 579/599 places, 1065/1105 transitions.
Finished structural reductions in DEADLOCK mode , in 2 iterations and 70425 ms. Remains : 579/599 places, 1065/1105 transitions.
Random walk for 1250000 steps, including 0 resets, run took 26899 ms (no deadlock found). (steps per millisecond=46 )
Random directed walk for 1250000 steps, including 0 resets, run took 19413 ms (no deadlock found). (steps per millisecond=64 )
[2026-05-22 18:37:32] [INFO ] Invariant cache hit.
[2026-05-22 18:37:33] [INFO ] [Real]Absence check using 47 positive place invariants in 351 ms returned sat
[2026-05-22 18:37:36] [INFO ] [Real]Absence check using state equation in 3111 ms returned sat
[2026-05-22 18:37:36] [INFO ] Solution in real domain found non-integer solution.
[2026-05-22 18:37:37] [INFO ] [Nat]Absence check using 47 positive place invariants in 283 ms returned sat
[2026-05-22 18:37:47] [INFO ] [Nat]Absence check using state equation in 10713 ms returned sat
[2026-05-22 18:37:47] [INFO ] State equation strengthened by 7 read => feed constraints.
[2026-05-22 18:37:47] [INFO ] [Nat]Added 7 Read/Feed constraints in 49 ms returned sat
[2026-05-22 18:37:48] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 1046 ms
FORMULA ReachabilityDeadlock FALSE TECHNIQUES TOPOLOGICAL SAT_SMT STRUCTURAL_REDUCTION
Total runtime 134315 ms.

BK_STOP 1779475069051

--------------------
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="BlocksWorld-PT-04"
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 BlocksWorld-PT-04, 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 r024-smll-177946789600196"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

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