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.r056-smll-177946902900109.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 CircadianClock-PT-000001, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r056-smll-177946902900109
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 408K
-rw-r--r-- 1 mcc users 6.7K Mar 6 10:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Mar 6 10:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.4K Mar 6 10:52 CTLFireability.txt
-rw-r--r-- 1 mcc users 31K Mar 6 10:52 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K Mar 15 08:03 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 08:03 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 15 08:03 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Mar 15 08:03 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Mar 6 10:52 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 112K Mar 6 10:52 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 10:52 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 6 10:52 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 08:03 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 08:03 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 12K 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 Liveness

=== Now, execution of the tool begins

BK_START 1779473965269

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=CircadianClock-PT-000001
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
Liveness PT
Running Version 202604301425
[2026-05-22 18:19:27] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-22 18:19:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 18:19:27] [INFO ] Load time of PNML (sax parser for PT used): 80 ms
[2026-05-22 18:19:27] [INFO ] Transformed 14 places.
[2026-05-22 18:19:27] [INFO ] Transformed 16 transitions.
[2026-05-22 18:19:27] [INFO ] Found NUPN structural information;
[2026-05-22 18:19:27] [INFO ] Parsed PT model containing 14 places and 16 transitions and 58 arcs in 298 ms.
Discarding 4 transitions out of 16. Remains 12
Built sparse matrix representations for Structural reductions in 11 ms.14973KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 14/14 places, 16/16 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 25 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 53 ms. Remains : 14/14 places, 16/16 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 14/14 places, 16/16 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 5 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-22 18:19:27] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-10437120137473443487.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-7333306090372265173.kers'
[2026-05-22 18:19:27] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-10437120137473443487.kers, --Pflows, --basisKERS=/tmp/petrispot-output-7333306090372265173.kers]
Culling duplicate invariants (modulo rational): removing 7 columns.
Culled 7 columns in 0 ms.
// Phase 1: matrix 14 rows 7 cols 21 entries
Finished phase 1 with 7 SingleSign rule and 0 generalized
[2026-05-22 18:19:27] [INFO ] Computed 7 invariants in 0 ms
Computed 7 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-7333306090372265173.kers
Total runtime 2 ms.
[2026-05-22 18:19:28] [INFO ] Implicit Places using invariants in 319 ms returned []
[2026-05-22 18:19:28] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:28] [INFO ] Invariant cache hit.
[2026-05-22 18:19:28] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 18:19:28] [INFO ] Implicit Places using invariants and state equation in 90 ms returned []
Implicit Place search using SMT with State Equation took 485 ms to find 0 implicit places.
[2026-05-22 18:19:28] [INFO ] Redundant transitions in 47 ms returned []
Running 14 sub problems to find dead transitions.
[2026-05-22 18:19:28] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:28] [INFO ] Invariant cache hit.
[2026-05-22 18:19:28] [INFO ] State equation strengthened by 2 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 7/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 14/28 variables, 14/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 2/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (OVERLAPS) 0/28 variables, 0/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Real declared 28/28 variables, and 37 constraints, problems are : Problem set: 0 solved, 14 unsolved in 666 ms.
Refiners :[Domain max(s): 14/14 constraints, Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 14/14 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 14 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/14 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/14 variables, 7/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/14 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 3 (OVERLAPS) 14/28 variables, 14/35 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/28 variables, 2/37 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/28 variables, 14/51 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/28 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 14 unsolved
At refinement iteration 7 (OVERLAPS) 0/28 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 14 unsolved
No progress, stopping.
After SMT solving in domain Int declared 28/28 variables, and 51 constraints, problems are : Problem set: 0 solved, 14 unsolved in 472 ms.
Refiners :[Domain max(s): 14/14 constraints, Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 14/14 constraints, ReadFeed: 2/2 constraints, PredecessorRefiner: 14/14 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 1186ms problems are : Problem set: 0 solved, 14 unsolved
Search for dead transitions found 0 dead transitions in 1199ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 1796 ms. Remains : 14/14 places, 16/16 transitions.
Random walk for 1250000 steps, including 0 resets, run took 2000 ms (no deadlock found). (steps per millisecond=625 )
Random directed walk for 1250000 steps, including 0 resets, run took 875 ms (no deadlock found). (steps per millisecond=1428 )
[2026-05-22 18:19:32] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:32] [INFO ] Invariant cache hit.
[2026-05-22 18:19:32] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned unsat
Starting structural reductions in LIVENESS mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 1 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-22 18:19:32] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:32] [INFO ] Invariant cache hit.
[2026-05-22 18:19:32] [INFO ] Implicit Places using invariants in 59 ms returned []
[2026-05-22 18:19:32] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:32] [INFO ] Invariant cache hit.
[2026-05-22 18:19:32] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 18:19:32] [INFO ] Implicit Places using invariants and state equation in 101 ms returned []
Implicit Place search using SMT with State Equation took 193 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LIVENESS mode , in 1 iterations and 195 ms. Remains : 14/14 places, 16/16 transitions.
Discarding 4 transitions out of 16. Remains 12
Initial state reduction rules removed 2 formulas.
RANDOM walk for 260 steps (0 resets) in 35 ms. (7 steps per ms) remains 0/10 properties
[2026-05-22 18:19:33] [INFO ] Flatten gal took : 28 ms
[2026-05-22 18:19:33] [INFO ] Flatten gal took : 5 ms
[2026-05-22 18:19:33] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality8590408429971422350.gal : 6 ms
[2026-05-22 18:19:33] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10307524906490057560.prop : 0 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/ReachabilityCardinality8590408429971422350.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10307524906490057560.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.

ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 12 properties.
Starting structural reductions in LIVENESS mode, iteration 0 : 14/14 places, 16/16 transitions.
Applied a total of 0 rules in 2 ms. Remains 14 /14 variables (removed 0) and now considering 16/16 (removed 0) transitions.
[2026-05-22 18:19:33] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:33] [INFO ] Invariant cache hit.
[2026-05-22 18:19:33] [INFO ] Implicit Places using invariants in 54 ms returned []
[2026-05-22 18:19:33] [INFO ] Flow matrix only has 14 transitions (discarded 2 similar events)
[2026-05-22 18:19:33] [INFO ] Invariant cache hit.
[2026-05-22 18:19:33] [INFO ] State equation strengthened by 2 read => feed constraints.
[2026-05-22 18:19:33] [INFO ] Implicit Places using invariants and state equation in 57 ms returned []
Implicit Place search using SMT with State Equation took 113 ms to find 0 implicit places.
Skipped dead transition search.
Finished structural reductions in LIVENESS mode , in 1 iterations and 116 ms. Remains : 14/14 places, 16/16 transitions.
Discarding 4 transitions out of 16. Remains 12
Net is quasi-live, checking if it is reversible to establish liveness.
Net is conservative; using simplified expression for initial state.
[2026-05-22 18:19:33] [INFO ] Flatten gal took : 5 ms
[2026-05-22 18:19:33] [INFO ] Flatten gal took : 5 ms
[2026-05-22 18:19:33] [INFO ] Time to serialize gal into /tmp/CTLFireability1313570884152770669.gal : 2 ms
[2026-05-22 18:19:33] [INFO ] Time to serialize properties into /tmp/CTLFireability18285151361954981938.ctl : 2 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-ctl-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/CTLFireability1313570884152770669.gal' '-t' 'CGAL' '-ctl' '/tmp/CTLFireability18285151361954981938.ctl' '--gen-order' 'FOLLOW'

its-ctl command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -...284
No direction supplied, using forward translation only.
Parsed 1 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,128,0.033966,3768,2,22,5,256,6,0,75,210,0


Converting to forward existential form...Done !
original formula: AG(EF(((((da==1)&&(dr==1))&&((r_cap==1)&&(mr_cap==1)))&&(((ma_cap==1)&&(c_cap==1))&&(a_cap==1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((da==1)&&(dr==1))&&((r_cap==1)&&(mr_cap==1)))&&(((ma_cap==1)&&(c_cap==1))&&(a_...176
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,0.03987,4088,1,0,5,310,14,0,345,210,5
Formula is TRUE !

***************************************

Able to resolve query Liveness after proving 1 properties.
FORMULA Liveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS TOPOLOGICAL QUASI_LIVE_REVERSIBLE INITIAL_STATE
Total runtime 6039 ms.

BK_STOP 1779473973391

--------------------
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
+ [[ Liveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution Liveness -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 Liveness -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="CircadianClock-PT-000001"
export BK_EXAMINATION="Liveness"
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 CircadianClock-PT-000001, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r056-smll-177946902900109"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircadianClock-PT-000001.tgz
mv CircadianClock-PT-000001 execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;