Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r252-tall-174915605300081.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool gold2024
Input is Szymanski-PT-b02, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r252-tall-174915605300081
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.1M
-rw-r--r-- 1 mcc users 8.0K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 38K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.0K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 77K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:33 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:33 instance
-rw-r--r-- 1 mcc users 6 May 29 14:33 iscolored
-rw-r--r-- 1 mcc users 3.7M May 29 14:33 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 1749196617167

Invoking MCC driver with
BK_TOOL=gold2024
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Szymanski-PT-b02
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2025-06-06 07:56:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -timeout, 180, -rebuildPNML]
[2025-06-06 07:56:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-06 07:56:58] [INFO ] Load time of PNML (sax parser for PT used): 319 ms
[2025-06-06 07:56:58] [INFO ] Transformed 568 places.
[2025-06-06 07:56:58] [INFO ] Transformed 8320 transitions.
[2025-06-06 07:56:58] [INFO ] Parsed PT model containing 568 places and 8320 transitions and 33408 arcs in 456 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 4 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 260 places in 17 ms
Reduce places removed 260 places and 256 transitions.
Built sparse matrix representations for Structural reductions in 16 ms.28549KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 308/308 places, 8064/8064 transitions.
Computed a total of 12 stabilizing places and 2432 stable transitions
Graph (complete) has 12652 edges and 308 vertex of which 306 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.55 ms
Discarding 2 places :
Also discarding 0 output transitions
Computed a total of 12 stabilizing places and 2432 stable transitions
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 2 place count 305 transition count 7936
Iterating global reduction 0 with 1 rules applied. Total rules applied 3 place count 305 transition count 7936
Computed a total of 11 stabilizing places and 2304 stable transitions
Computed a total of 11 stabilizing places and 2304 stable transitions
Applied a total of 3 rules in 581 ms. Remains 305 /308 variables (removed 3) and now considering 7936/8064 (removed 128) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 595 ms. Remains : 305/308 places, 7936/8064 transitions.
Random walk for 1250000 steps, including 0 resets, run took 3504 ms (no deadlock found). (steps per millisecond=356 )
Random directed walk for 1250000 steps, including 0 resets, run took 4322 ms (no deadlock found). (steps per millisecond=289 )
[2025-06-06 07:57:07] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
// Phase 1: matrix 2732 rows 305 cols
[2025-06-06 07:57:07] [INFO ] Computed 1 invariants in 45 ms
[2025-06-06 07:57:08] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 12 ms returned sat
[2025-06-06 07:57:08] [INFO ] [Real]Absence check using state equation in 440 ms returned sat
[2025-06-06 07:57:08] [INFO ] Solution in real domain found non-integer solution.
[2025-06-06 07:57:09] [INFO ] [Nat]Absence check using 0 positive and 1 generalized place invariants in 10 ms returned sat
[2025-06-06 07:57:10] [INFO ] [Nat]Absence check using state equation in 784 ms returned sat
[2025-06-06 07:57:10] [INFO ] State equation strengthened by 147 read => feed constraints.
[2025-06-06 07:57:20] [INFO ] [Nat]Added 147 Read/Feed constraints in 10013 ms returned sat
[2025-06-06 07:57:21] [INFO ] Computed and/alt/rep : 9/11/9 causal constraints (skipped 2721 transitions) in 595 ms.
[2025-06-06 07:57:21] [INFO ] Added : 1 causal constraints over 1 iterations in 880 ms. Result :sat
Parikh directed walk for 4000 steps, including 4000 resets, run took 502 ms. (steps per millisecond=7 )
Random directed walk for 500000 steps, including 0 resets, run took 2237 ms (no deadlock found). (steps per millisecond=223 )
Random walk for 500000 steps, including 0 resets, run took 1455 ms (no deadlock found). (steps per millisecond=343 )
Random directed walk for 500000 steps, including 0 resets, run took 1878 ms (no deadlock found). (steps per millisecond=266 )
Random walk for 500000 steps, including 0 resets, run took 1774 ms (no deadlock found). (steps per millisecond=281 )
Starting structural reductions in DEADLOCK mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Computed a total of 11 stabilizing places and 2304 stable transitions
Computed a total of 11 stabilizing places and 2304 stable transitions
Computed a total of 11 stabilizing places and 2304 stable transitions
Applied a total of 0 rules in 359 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
[2025-06-06 07:57:29] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2025-06-06 07:57:29] [INFO ] Invariant cache hit.
[2025-06-06 07:57:30] [INFO ] Implicit Places using invariants in 575 ms returned []
[2025-06-06 07:57:30] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2025-06-06 07:57:30] [INFO ] Invariant cache hit.
[2025-06-06 07:57:31] [INFO ] State equation strengthened by 147 read => feed constraints.
[2025-06-06 07:58:01] [INFO ] Performed 295/305 implicitness test of which 0 returned IMPLICIT in 30 seconds.
[2025-06-06 07:58:04] [INFO ] Implicit Places using invariants and state equation in 34415 ms returned []
Implicit Place search using SMT with State Equation took 34992 ms to find 0 implicit places.
[2025-06-06 07:58:05] [INFO ] Redundant transitions in 879 ms returned []
Running 7934 sub problems to find dead transitions.
[2025-06-06 07:58:05] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2025-06-06 07:58:05] [INFO ] Invariant cache hit.
[2025-06-06 07:58:05] [INFO ] State equation strengthened by 147 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/305 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 7934 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 305/3037 variables, and 1 constraints, problems are : Problem set: 0 solved, 7934 unsolved in 30156 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 0/305 constraints, ReadFeed: 0/147 constraints, PredecessorRefiner: 7934/7934 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 7934 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/305 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 7934 unsolved
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 305/3037 variables, and 1 constraints, problems are : Problem set: 0 solved, 7934 unsolved in 30123 ms.
Refiners :[Generalized P Invariants (flows): 1/1 constraints, State Equation: 0/305 constraints, ReadFeed: 0/147 constraints, PredecessorRefiner: 0/7934 constraints, Known Traps: 0/0 constraints]
After SMT, in 88787ms problems are : Problem set: 0 solved, 7934 unsolved
Search for dead transitions found 0 dead transitions in 88878ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 125157 ms. Remains : 305/305 places, 7936/7936 transitions.
Random walk for 1250000 steps, including 0 resets, run took 3560 ms (no deadlock found). (steps per millisecond=351 )
Random directed walk for 1250000 steps, including 0 resets, run took 4390 ms (no deadlock found). (steps per millisecond=284 )
[2025-06-06 07:59:42] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2025-06-06 07:59:42] [INFO ] Invariant cache hit.
[2025-06-06 07:59:43] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 5 ms returned sat
[2025-06-06 07:59:43] [INFO ] [Real]Absence check using state equation in 429 ms returned sat
[2025-06-06 07:59:43] [INFO ] Solution in real domain found non-integer solution.
[2025-06-06 07:59:44] [INFO ] [Nat]Absence check using 0 positive and 1 generalized place invariants in 5 ms returned sat
[2025-06-06 07:59:45] [INFO ] [Nat]Absence check using state equation in 743 ms returned sat
[2025-06-06 07:59:45] [INFO ] State equation strengthened by 147 read => feed constraints.
[2025-06-06 07:59:55] [INFO ] [Nat]Added 147 Read/Feed constraints in 10038 ms returned sat
[2025-06-06 07:59:56] [INFO ] Computed and/alt/rep : 9/11/9 causal constraints (skipped 2721 transitions) in 900 ms.
[2025-06-06 07:59:56] [INFO ] Added : 1 causal constraints over 1 iterations in 1168 ms. Result :sat
Parikh directed walk for 4000 steps, including 4000 resets, run took 443 ms. (steps per millisecond=9 )
Random directed walk for 500001 steps, including 0 resets, run took 1739 ms (no deadlock found). (steps per millisecond=287 )
Finished random walk after 63 steps, including 0 resets, run found a deadlock after 1 ms. (steps per millisecond=63 )
FORMULA ReachabilityDeadlock TRUE TECHNIQUES TOPOLOGICAL STRUCTURAL_REDUCTION RANDOM_WALK
Total runtime 180127 ms.
ITS solved all properties within timeout

BK_STOP 1749196798640

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityDeadlock -timeout 180 -rebuildPNML

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="Szymanski-PT-b02"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="gold2024"
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 2-5832"
echo " Executing tool gold2024"
echo " Input is Szymanski-PT-b02, 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 r252-tall-174915605300081"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Szymanski-PT-b02.tgz
mv Szymanski-PT-b02 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 ;