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.r354-tall-178024402800156.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 LastZero-PT-N26, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r354-tall-178024402800156
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 6.9M
-rw-r--r-- 1 mcc users 8.0K May 27 10:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K May 27 10:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 27 10:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K May 27 10:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jun 16 12:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Jun 16 12:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Jun 16 12:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Jun 16 12:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 26 18:17 NewModel
-rw-r--r-- 1 mcc users 8.0K May 27 10:26 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 68K May 27 10:26 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.4K May 27 10:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 79K May 27 10:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 16 12:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 16 12:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 26 18:17 equiv_col
-rw-r--r-- 1 mcc users 4 May 26 18:17 instance
-rw-r--r-- 1 mcc users 6 May 26 18:17 iscolored
-rw-r--r-- 1 mcc users 6.5M Jun 10 11:58 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 LastZero-PT-N26-LTLFireability-00
FORMULA_NAME LastZero-PT-N26-LTLFireability-01
FORMULA_NAME LastZero-PT-N26-LTLFireability-02
FORMULA_NAME LastZero-PT-N26-LTLFireability-03
FORMULA_NAME LastZero-PT-N26-LTLFireability-04
FORMULA_NAME LastZero-PT-N26-LTLFireability-05
FORMULA_NAME LastZero-PT-N26-LTLFireability-06
FORMULA_NAME LastZero-PT-N26-LTLFireability-07
FORMULA_NAME LastZero-PT-N26-LTLFireability-08
FORMULA_NAME LastZero-PT-N26-LTLFireability-09
FORMULA_NAME LastZero-PT-N26-LTLFireability-10
FORMULA_NAME LastZero-PT-N26-LTLFireability-11
FORMULA_NAME LastZero-PT-N26-LTLFireability-12
FORMULA_NAME LastZero-PT-N26-LTLFireability-13
FORMULA_NAME LastZero-PT-N26-LTLFireability-14
FORMULA_NAME LastZero-PT-N26-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1781643422726

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=LastZero-PT-N26
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
LTLFireability PT
Running Version 202604301425
[2026-06-16 20:57:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2026-06-16 20:57:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-06-16 20:57:04] [INFO ] Load time of PNML (sax parser for PT used): 389 ms
[2026-06-16 20:57:04] [INFO ] Transformed 1512 places.
[2026-06-16 20:57:04] [INFO ] Transformed 21035 transitions.
[2026-06-16 20:57:04] [INFO ] Parsed PT model containing 1512 places and 21035 transitions and 64457 arcs in 547 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 52 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Deduced a syphon composed of 730 places in 99 ms
Reduce places removed 730 places and 13781 transitions.
Reduce places removed 1 places and 0 transitions.
Initial state reduction rules removed 2 formulas.
FORMULA LastZero-PT-N26-LTLFireability-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 22 out of 781 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 781/781 places, 7254/7254 transitions.
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 780 transition count 7254
Applied a total of 1 rules in 82 ms. Remains 780 /781 variables (removed 1) and now considering 7254/7254 (removed 0) transitions.
[2026-06-16 20:57:05] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-17943072566060790446.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-2110234768934911446.kers'
[2026-06-16 20:57:05] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-17943072566060790446.kers, --Pflows, --basisKERS=/tmp/petrispot-output-2110234768934911446.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 2 ms.
// Phase 1: matrix 6929 rows 779 cols 19706 entries
Finished phase 1 with 754 SingleSign rule and 0 generalized
[2026-06-16 20:57:05] [INFO ] Computed 26 invariants in 16 ms
Computed 26 P flows in 17 ms.
Exported basis to /tmp/petrispot-output-2110234768934911446.kers
Total runtime 21 ms.
[2026-06-16 20:57:06] [INFO ] Implicit Places using invariants in 965 ms returned []
[2026-06-16 20:57:06] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
[2026-06-16 20:57:06] [INFO ] Invariant cache hit.
[2026-06-16 20:57:07] [INFO ] State equation strengthened by 702 read => feed constraints.
[2026-06-16 20:57:37] [INFO ] Performed 485/780 implicitness test of which 1 returned IMPLICIT in 30 seconds.
[2026-06-16 20:58:02] [INFO ] Implicit Places using invariants and state equation in 56291 ms returned [306]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 57309 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 779/781 places, 7254/7254 transitions.
Applied a total of 0 rules in 35 ms. Remains 779 /779 variables (removed 0) and now considering 7254/7254 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 57443 ms. Remains : 779/781 places, 7254/7254 transitions.
Starting structural reductions in LTL mode, iteration 0 : 779/779 places, 7254/7254 transitions.
Applied a total of 0 rules in 34 ms. Remains 779 /779 variables (removed 0) and now considering 7254/7254 (removed 0) transitions.
[2026-06-16 20:58:02] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-12070799133969656211.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-3076873620310752682.kers'
[2026-06-16 20:58:02] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-12070799133969656211.kers, --Pflows, --basisKERS=/tmp/petrispot-output-3076873620310752682.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 2 ms.
// Phase 1: matrix 6929 rows 778 cols 19680 entries
Finished phase 1 with 754 SingleSign rule and 0 generalized
[2026-06-16 20:58:02] [INFO ] Computed 25 invariants in 19 ms
Computed 25 P flows in 19 ms.
Exported basis to /tmp/petrispot-output-3076873620310752682.kers
Total runtime 24 ms.
[2026-06-16 20:58:03] [INFO ] Implicit Places using invariants in 625 ms returned []
[2026-06-16 20:58:03] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
[2026-06-16 20:58:03] [INFO ] Invariant cache hit.
[2026-06-16 20:58:04] [INFO ] State equation strengthened by 702 read => feed constraints.
[2026-06-16 20:58:35] [INFO ] Performed 255/779 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2026-06-16 20:59:05] [INFO ] Performed 476/779 implicitness test of which 0 returned IMPLICIT in 60 seconds.
[2026-06-16 20:59:32] [INFO ] Implicit Places using invariants and state equation in 89173 ms returned []
Implicit Place search using SMT with State Equation took 89804 ms to find 0 implicit places.
Running 7228 sub problems to find dead transitions.
[2026-06-16 20:59:32] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
[2026-06-16 20:59:32] [INFO ] Invariant cache hit.
[2026-06-16 20:59:32] [INFO ] State equation strengthened by 702 read => feed constraints.
Error getting values : (error "Timeout of Z3 solver reached")
At refinement iteration 0 (INCLUDED_ONLY) 0/778 variables, 25/25 constraints. Problems are: Problem set: 0 solved, 7228 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 778/7708 variables, and 25 constraints, problems are : Problem set: 0 solved, 7228 unsolved in 30143 ms.
Refiners :[Positive P Invariants (semi-flows): 25/25 constraints, State Equation: 0/779 constraints, ReadFeed: 0/702 constraints, PredecessorRefiner: 7228/7228 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 7228 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/778 variables, 25/25 constraints. Problems are: Problem set: 0 solved, 7228 unsolved
Error getting values : (error "Timeout of Z3 solver reached")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 778/7708 variables, and 25 constraints, problems are : Problem set: 0 solved, 7228 unsolved in 30102 ms.
Refiners :[Positive P Invariants (semi-flows): 25/25 constraints, State Equation: 0/779 constraints, ReadFeed: 0/702 constraints, PredecessorRefiner: 0/7228 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 66806ms problems are : Problem set: 0 solved, 7228 unsolved
Search for dead transitions found 0 dead transitions in 66874ms
Finished structural reductions in LTL mode , in 1 iterations and 156779 ms. Remains : 779/779 places, 7254/7254 transitions.
Support contains 22 out of 779 places after structural reductions.
[2026-06-16 21:00:39] [INFO ] Flatten gal took : 364 ms
[2026-06-16 21:00:39] [INFO ] Flatten gal took : 220 ms
[2026-06-16 21:00:40] [INFO ] Input system was already deterministic with 7254 transitions.
RANDOM walk for 40000 steps (504 resets) in 1782 ms. (22 steps per ms) remains 11/12 properties
BEST_FIRST walk for 40004 steps (40 resets) in 183 ms. (217 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 135 ms. (294 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 147 ms. (270 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (39 resets) in 131 ms. (303 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 135 ms. (294 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 142 ms. (279 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 126 ms. (314 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 98 ms. (404 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 103 ms. (384 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40004 steps (40 resets) in 109 ms. (363 steps per ms) remains 11/11 properties
BEST_FIRST walk for 40003 steps (40 resets) in 110 ms. (360 steps per ms) remains 11/11 properties
Interrupted probabilistic random walk after 85580 steps, run timeout after 3001 ms. (steps per millisecond=28 ) properties seen :0 out of 11
Probabilistic random walk after 85580 steps, saw 19072 distinct states, run finished after 3004 ms. (steps per millisecond=28 ) properties seen :0
[2026-06-16 21:00:44] [INFO ] Flow matrix only has 6929 transitions (discarded 325 similar events)
[2026-06-16 21:00:44] [INFO ] Invariant cache hit.
[2026-06-16 21:00:44] [INFO ] State equation strengthened by 702 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/20 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 122/142 variables, 7/7 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/142 variables, 0/7 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 3 (OVERLAPS) 2474/2616 variables, 142/149 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2616 variables, 12/161 constraints. Problems are: Problem set: 0 solved, 11 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/2616 variables, 0/161 constraints. Problems are: Problem set: 0 solved, 11 unsolved
Problem AtomicPropp0 is UNSAT
Problem AtomicPropp1 is UNSAT
Problem AtomicPropp2 is UNSAT
Problem AtomicPropp3 is UNSAT
Problem AtomicPropp4 is UNSAT
Problem AtomicPropp5 is UNSAT
Problem AtomicPropp6 is UNSAT
Problem AtomicPropp7 is UNSAT
Problem AtomicPropp9 is UNSAT
Problem AtomicPropp10 is UNSAT
Problem AtomicPropp11 is UNSAT
After SMT solving in domain Real declared 3669/7708 variables, and 334 constraints, problems are : Problem set: 11 solved, 0 unsolved in 1737 ms.
Refiners :[Positive P Invariants (semi-flows): 7/25 constraints, State Equation: 315/779 constraints, ReadFeed: 12/702 constraints, PredecessorRefiner: 11/11 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1783ms problems are : Problem set: 11 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
Successfully simplified 11 atomic propositions for a total of 6 simplifications.
FORMULA LastZero-PT-N26-LTLFireability-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA LastZero-PT-N26-LTLFireability-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 779 stabilizing places and 7254 stable transitions
Complete graph has no SCC; deadlocks are unavoidable. place count 779 transition count 7254
Detected that all paths lead to deadlock. Applying this knowledge to assert that all AP eventually converge (and all enablings converge to false).
FORMULA LastZero-PT-N26-LTLFireability-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
All properties solved by simple procedures.
Total runtime 222365 ms.

BK_STOP 1781643646277

--------------------
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
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -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 LTLFireability -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="LastZero-PT-N26"
export BK_EXAMINATION="LTLFireability"
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 LastZero-PT-N26, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r354-tall-178024402800156"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/LastZero-PT-N26.tgz
mv LastZero-PT-N26 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;