Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r016-oct2-177944372900332.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.......................
=====================================================================
Generated by BenchKit 2-5973
Executing tool gold2025
Input is AutoFlight-PT-06b, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r016-oct2-177944372900332
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 520K
-rw-r--r-- 1 mcc users 7.2K Mar 5 16:35 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Mar 5 16:35 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Mar 5 16:35 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Mar 5 16:35 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 07:14 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 15 07:14 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Mar 15 07:14 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 07:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.1K Mar 5 16:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 91K Mar 5 16:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Mar 5 16:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 50K Mar 5 16:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 15 07:14 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 15 07:14 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 134K 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1779688918780

Invoking MCC driver with
GOLD_TOOL=
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AutoFlight-PT-06b
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202505121319
[2026-05-25 06:02:00] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2026-05-25 06:02:00] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-25 06:02:00] [INFO ] Load time of PNML (sax parser for PT used): 199 ms
[2026-05-25 06:02:00] [INFO ] Transformed 574 places.
[2026-05-25 06:02:00] [INFO ] Transformed 572 transitions.
[2026-05-25 06:02:00] [INFO ] Found NUPN structural information;
[2026-05-25 06:02:00] [INFO ] Parsed PT model containing 574 places and 572 transitions and 1334 arcs in 364 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 574/574 places, 572/572 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 226 transitions
Trivial Post-agglo rules discarded 226 transitions
Performed 226 trivial Post agglomeration. Transition count delta: 226
Iterating post reduction 0 with 226 rules applied. Total rules applied 226 place count 574 transition count 346
Reduce places removed 226 places and 0 transitions.
Ensure Unique test removed 30 transitions
Reduce isomorphic transitions removed 30 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 12 transitions
Trivial Post-agglo rules discarded 12 transitions
Performed 12 trivial Post agglomeration. Transition count delta: 12
Iterating post reduction 1 with 268 rules applied. Total rules applied 494 place count 348 transition count 304
Reduce places removed 12 places and 0 transitions.
Iterating post reduction 2 with 12 rules applied. Total rules applied 506 place count 336 transition count 304
Performed 79 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 79 Pre rules applied. Total rules applied 506 place count 336 transition count 225
Deduced a syphon composed of 79 places in 2 ms
Reduce places removed 79 places and 0 transitions.
Iterating global reduction 3 with 158 rules applied. Total rules applied 664 place count 257 transition count 225
Performed 110 Post agglomeration using F-continuation condition.Transition count delta: 110
Deduced a syphon composed of 110 places in 0 ms
Reduce places removed 110 places and 0 transitions.
Iterating global reduction 3 with 220 rules applied. Total rules applied 884 place count 147 transition count 115
Applied a total of 884 rules in 119 ms. Remains 147 /574 variables (removed 427) and now considering 115/572 (removed 457) transitions.
// Phase 1: matrix 115 rows 147 cols
[2026-05-25 06:02:01] [INFO ] Computed 40 invariants in 12 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:02:01] [INFO ] Implicit Places using invariants in 899 ms returned [45, 48, 51, 54, 57, 60, 146]
Discarding 7 places :
Implicit Place search using SMT only with invariants took 969 ms to find 7 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 140/574 places, 115/572 transitions.
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 6 Pre rules applied. Total rules applied 0 place count 140 transition count 109
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 12 place count 134 transition count 109
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 0 with 16 rules applied. Total rules applied 28 place count 126 transition count 101
Applied a total of 28 rules in 30 ms. Remains 126 /140 variables (removed 14) and now considering 101/115 (removed 14) transitions.
// Phase 1: matrix 101 rows 126 cols
[2026-05-25 06:02:01] [INFO ] Computed 33 invariants in 2 ms
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:02:02] [INFO ] Implicit Places using invariants in 666 ms returned []
[2026-05-25 06:02:02] [INFO ] Invariant cache hit.
Starting Z3 with timeout 160.0 s and query timeout 16000.0 ms
[2026-05-25 06:02:02] [INFO ] State equation strengthened by 30 read => feed constraints.
[2026-05-25 06:02:04] [INFO ] Implicit Places using invariants and state equation in 1365 ms returned []
Implicit Place search using SMT with State Equation took 2036 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 126/574 places, 101/572 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 3181 ms. Remains : 126/574 places, 101/572 transitions.
Discarding 24 transitions out of 101. Remains 77
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (1561 resets) in 1909 ms. (20 steps per ms) remains 16/76 properties
BEST_FIRST walk for 4003 steps (8 resets) in 38 ms. (102 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 16 ms. (235 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (10 resets) in 16 ms. (235 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (12 resets) in 36 ms. (108 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (12 resets) in 18 ms. (210 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (11 resets) in 13 ms. (286 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (9 resets) in 14 ms. (266 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (10 resets) in 12 ms. (308 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (12 resets) in 21 ms. (182 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (11 resets) in 17 ms. (222 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (11 resets) in 13 ms. (285 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (11 resets) in 15 ms. (250 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (12 resets) in 13 ms. (286 steps per ms) remains 15/16 properties
BEST_FIRST walk for 4004 steps (12 resets) in 14 ms. (266 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4003 steps (11 resets) in 14 ms. (266 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (10 resets) in 14 ms. (266 steps per ms) remains 15/15 properties
[2026-05-25 06:02:04] [INFO ] Invariant cache hit.
[2026-05-25 06:02:04] [INFO ] State equation strengthened by 30 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
[2026-05-25 06:02:04] [INFO ] Flatten gal took : 61 ms
[2026-05-25 06:02:04] [INFO ] Flatten gal took : 17 ms
[2026-05-25 06:02:04] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3392401598154612193.gal : 9 ms
[2026-05-25 06:02:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3087024449296755212.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3392401598154612193.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3087024449296755212.prop' '--nowitness' '--gen-order' 'FOLLOW'

At refinement iteration 0 (INCLUDED_ONLY) 0/23 variables, 23/23 constraints. Problems are: Problem set: 0 solved, 15 unsolved
its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality3087024449296755212.prop.
SDD proceeding with computation,15 properties remain. new max is 4
SDD size :1 after 4
At refinement iteration 1 (INCLUDED_ONLY) 0/23 variables, 0/23 constraints. Problems are: Problem set: 0 solved, 15 unsolved
SDD proceeding with computation,15 properties remain. new max is 8
SDD size :4 after 244
SDD proceeding with computation,15 properties remain. new max is 16
SDD size :244 after 93313
At refinement iteration 2 (OVERLAPS) 59/82 variables, 11/34 constraints. Problems are: Problem set: 0 solved, 15 unsolved
SDD proceeding with computation,15 properties remain. new max is 32
SDD size :93313 after 9.9532e+06
Reachability property qltransition_77 is true.
Reachability property qltransition_70 is true.
Reachability property qltransition_63 is true.
Reachability property qltransition_56 is true.
SDD proceeding with computation,11 properties remain. new max is 32
SDD size :9.9532e+06 after 9.95705e+06
Reachability property qltransition_93 is true.
Reachability property qltransition_49 is true.
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :9.95705e+06 after 9.97456e+06
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :9.97456e+06 after 1.00464e+07
SDD proceeding with computation,9 properties remain. new max is 128
SDD size :1.00464e+07 after 4.70292e+07
At refinement iteration 3 (INCLUDED_ONLY) 0/82 variables, 59/93 constraints. Problems are: Problem set: 0 solved, 15 unsolved
Reachability property qltransition_94 is true.
Reachability property qltransition_79 is true.
Reachability property qltransition_72 is true.
Reachability property qltransition_65 is true.
Reachability property qltransition_58 is true.
Reachability property qltransition_51 is true.
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :4.70292e+07 after 6.45019e+07
Reachability property qltransition_27 is true.
Reachability property qltransition_25 is true.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :6.45019e+07 after 1.16453e+08
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :1.16453e+08 after 2.62581e+08
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :2.62581e+08 after 5.61365e+08
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :5.61365e+08 after 3.3443e+09
[2026-05-25 06:02:05] [INFO ] Deduced a trap composed of 6 places in 40 ms of which 7 ms to minimize.
Reachability property qltransition_88 is true.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 1025 fixpoint passes
After SMT solving in domain Real declared 82/227 variables, and 94 constraints, problems are : Problem set: 15 solved, 0 unsolved in 387 ms.
Refiners :[Domain max(s): 82/126 constraints, Positive P Invariants (semi-flows): 11/33 constraints, State Equation: 0/126 constraints, ReadFeed: 0/30 constraints, PredecessorRefiner: 15/15 constraints, Known Traps: 1/1 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 424ms problems are : Problem set: 15 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Able to resolve query QuasiLiveness after proving 77 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 4901 ms.

BK_STOP 1779688925353

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -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_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -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="AutoFlight-PT-06b"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2025"
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 gold2025"
echo " Input is AutoFlight-PT-06b, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r016-oct2-177944372900332"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-06b.tgz
mv AutoFlight-PT-06b execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;