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-177946789600191.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-03, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r024-smll-177946789600191
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 804K
-rw-r--r-- 1 mcc users 8.2K Mar 5 16:55 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 5 16:55 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Mar 5 16:55 CTLFireability.txt
-rw-r--r-- 1 mcc users 58K Mar 5 16:55 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 15 07:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 07:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 15 07:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 07:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Mar 5 16:55 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 143K Mar 5 16:55 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.7K Mar 5 16:55 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 64K Mar 5 16:55 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 330K 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 1779474729317

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-03
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityDeadlock PT
Running Version 202604301425
[2026-05-22 18:32:11] [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 18:32:11] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 18:32:12] [INFO ] Load time of PNML (sax parser for PT used): 268 ms
[2026-05-22 18:32:12] [INFO ] Transformed 379 places.
[2026-05-22 18:32:12] [INFO ] Transformed 685 transitions.
[2026-05-22 18:32:12] [INFO ] Found NUPN structural information;
[2026-05-22 18:32:12] [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]
[2026-05-22 18:32:12] [INFO ] Parsed PT model containing 379 places and 685 transitions and 3412 arcs in 511 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 11 ms.16922KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 379/379 places, 685/685 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 314 ms. Remains 379 /379 variables (removed 0) and now considering 685/685 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 342 ms. Remains : 379/379 places, 685/685 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 379/379 places, 685/685 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 121 ms. Remains 379 /379 variables (removed 0) and now considering 685/685 (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-11461138136112107758.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9806331707621190270.kers'
[2026-05-22 18:32:13] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-11461138136112107758.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9806331707621190270.kers]
Normalized transition count is 684 out of 685 initially.
Culled 0 columns in 1 ms.
// Phase 1: matrix 684 rows 379 cols 3312 entries
Finished phase 1 with 342 SingleSign rule and 0 generalized
[2026-05-22 18:32:13] [INFO ] Computed 37 invariants in 6 ms
Computed 37 P flows in 8 ms.
Exported basis to /tmp/petrispot-output-9806331707621190270.kers
Total runtime 9 ms.
[2026-05-22 18:32:14] [INFO ] Implicit Places using invariants in 1401 ms returned []
[2026-05-22 18:32:14] [INFO ] Invariant cache hit.
[2026-05-22 18:32:15] [INFO ] State equation strengthened by 27 read => feed constraints.
[2026-05-22 18:32:15] [INFO ] Implicit Places using invariants and state equation in 1568 ms returned []
Implicit Place search using SMT with State Equation took 3039 ms to find 0 implicit places.
[2026-05-22 18:32:16] [INFO ] Redundant transitions in 74 ms returned []
Running 680 sub problems to find dead transitions.
[2026-05-22 18:32:16] [INFO ] Invariant cache hit.
[2026-05-22 18:32:16] [INFO ] State equation strengthened by 27 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Problem TDEAD1 is UNSAT
Problem TDEAD19 is UNSAT
Problem TDEAD55 is UNSAT
Problem TDEAD74 is UNSAT
Problem TDEAD112 is UNSAT
Problem TDEAD131 is UNSAT
Problem TDEAD150 is UNSAT
Problem TDEAD226 is UNSAT
Problem TDEAD245 is UNSAT
Problem TDEAD264 is UNSAT
Problem TDEAD283 is UNSAT
Problem TDEAD302 is UNSAT
Problem TDEAD321 is UNSAT
Problem TDEAD359 is UNSAT
Problem TDEAD378 is UNSAT
Problem TDEAD412 is UNSAT
Problem TDEAD474 is UNSAT
Problem TDEAD502 is UNSAT
Problem TDEAD528 is UNSAT
Problem TDEAD612 is UNSAT
Problem TDEAD628 is UNSAT
Problem TDEAD642 is UNSAT
Problem TDEAD654 is UNSAT
Problem TDEAD664 is UNSAT
Problem TDEAD672 is UNSAT
Problem TDEAD682 is UNSAT
At refinement iteration 0 (INCLUDED_ONLY) 0/374 variables, 27/27 constraints. Problems are: Problem set: 26 solved, 654 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/374 variables, 1/28 constraints. Problems are: Problem set: 26 solved, 654 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/374 variables, 0/28 constraints. Problems are: Problem set: 26 solved, 654 unsolved
Problem TDEAD93 is UNSAT
Problem TDEAD169 is UNSAT
Problem TDEAD188 is UNSAT
Problem TDEAD207 is UNSAT
Problem TDEAD340 is UNSAT
Problem TDEAD444 is UNSAT
Problem TDEAD552 is UNSAT
Problem TDEAD574 is UNSAT
Problem TDEAD594 is UNSAT
Problem TDEAD678 is UNSAT
At refinement iteration 3 (OVERLAPS) 5/379 variables, 10/38 constraints. Problems are: Problem set: 36 solved, 644 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 379/1064 variables, and 38 constraints, problems are : Problem set: 36 solved, 644 unsolved in 30057 ms.
Refiners :[Positive P Invariants (semi-flows): 37/37 constraints, State Equation: 0/379 constraints, ReadFeed: 0/27 constraints, PredecessorRefiner: 667/343 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 36 solved, 644 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/356 variables, 1/1 constraints. Problems are: Problem set: 36 solved, 644 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/356 variables, 1/2 constraints. Problems are: Problem set: 36 solved, 644 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/356 variables, 0/2 constraints. Problems are: Problem set: 36 solved, 644 unsolved
At refinement iteration 3 (OVERLAPS) 23/379 variables, 36/38 constraints. Problems are: Problem set: 36 solved, 644 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/379 variables, 0/38 constraints. Problems are: Problem set: 36 solved, 644 unsolved
At refinement iteration 5 (OVERLAPS) 684/1063 variables, 379/417 constraints. Problems are: Problem set: 36 solved, 644 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/1063 variables, 26/443 constraints. Problems are: Problem set: 36 solved, 644 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 1063/1064 variables, and 768 constraints, problems are : Problem set: 36 solved, 644 unsolved in 30288 ms.
Refiners :[Positive P Invariants (semi-flows): 37/37 constraints, State Equation: 379/379 constraints, ReadFeed: 26/27 constraints, PredecessorRefiner: 644/343 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 62137ms problems are : Problem set: 36 solved, 644 unsolved
Search for dead transitions found 36 dead transitions in 62178ms
Found 36 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 36 transitions
Dead transitions reduction (with SMT) removed 36 transitions
Starting structural reductions in DEADLOCK mode, iteration 1 : 379/379 places, 649/685 transitions.
Computed a total of 18 stabilizing places and 0 stable transitions
Graph (complete) has 1870 edges and 379 vertex of which 361 are kept as prefixes of interest. Removing 18 places using SCC suffix rule.8 ms
Discarding 18 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 83 ms. Remains 361 /379 variables (removed 18) and now considering 649/649 (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-4097434673520319825.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3190017931271168917.kers'
[2026-05-22 18:33:18] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-4097434673520319825.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3190017931271168917.kers]
Normalized transition count is 648 out of 649 initially.
Culled 0 columns in 1 ms.
// Phase 1: matrix 648 rows 361 cols 3204 entries
Finished phase 1 with 324 SingleSign rule and 0 generalized
[2026-05-22 18:33:18] [INFO ] Computed 37 invariants in 6 ms
Computed 37 P flows in 7 ms.
Exported basis to /tmp/petrispot-output-3190017931271168917.kers
Total runtime 9 ms.
[2026-05-22 18:33:18] [INFO ] Implicit Places using invariants in 585 ms returned []
[2026-05-22 18:33:18] [INFO ] Invariant cache hit.
[2026-05-22 18:33:19] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-22 18:33:19] [INFO ] Implicit Places using invariants and state equation in 908 ms returned []
Implicit Place search using SMT with State Equation took 1497 ms to find 0 implicit places.
Starting structural reductions in DEADLOCK mode, iteration 2 : 361/379 places, 649/685 transitions.
Finished structural reductions in DEADLOCK mode , in 2 iterations and 67076 ms. Remains : 361/379 places, 649/685 transitions.
Random walk for 1250000 steps, including 0 resets, run took 17459 ms (no deadlock found). (steps per millisecond=71 )
Random directed walk for 1250002 steps, including 0 resets, run took 12261 ms (no deadlock found). (steps per millisecond=101 )
[2026-05-22 18:33:49] [INFO ] Invariant cache hit.
[2026-05-22 18:33:49] [INFO ] [Real]Absence check using 37 positive place invariants in 143 ms returned sat
[2026-05-22 18:33:51] [INFO ] [Real]Absence check using state equation in 1832 ms returned sat
[2026-05-22 18:33:51] [INFO ] Solution in real domain found non-integer solution.
[2026-05-22 18:33:52] [INFO ] [Nat]Absence check using 37 positive place invariants in 124 ms returned sat
[2026-05-22 18:33:56] [INFO ] [Nat]Absence check using state equation in 4287 ms returned sat
[2026-05-22 18:33:56] [INFO ] State equation strengthened by 1 read => feed constraints.
[2026-05-22 18:33:56] [INFO ] [Nat]Added 1 Read/Feed constraints in 26 ms returned sat
[2026-05-22 18:33:57] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 476 ms
FORMULA ReachabilityDeadlock FALSE TECHNIQUES TOPOLOGICAL SAT_SMT STRUCTURAL_REDUCTION
Total runtime 105203 ms.

BK_STOP 1779474837211

--------------------
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-03"
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-03, 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-177946789600191"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BlocksWorld-PT-03.tgz
mv BlocksWorld-PT-03 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 ;