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-174915605300086.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-b04, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r252-tall-174915605300086
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.1M
-rw-r--r-- 1 mcc users 8.3K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 97K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K 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 2.2K 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 11K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 106K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.0K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K 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 4.0K 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 1749196626184

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-b04
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2025-06-06 07:57:07] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -timeout, 180, -rebuildPNML]
[2025-06-06 07:57:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-06 07:57:07] [INFO ] Load time of PNML (sax parser for PT used): 360 ms
[2025-06-06 07:57:07] [INFO ] Transformed 568 places.
[2025-06-06 07:57:07] [INFO ] Transformed 8320 transitions.
[2025-06-06 07:57:07] [INFO ] Parsed PT model containing 568 places and 8320 transitions and 33408 arcs in 498 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 19 ms
Reduce places removed 260 places and 256 transitions.
Built sparse matrix representations for Structural reductions in 19 ms.28395KB 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.59 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 557 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 570 ms. Remains : 305/308 places, 7936/8064 transitions.
Random walk for 1250001 steps, including 0 resets, run took 2067 ms (no deadlock found). (steps per millisecond=604 )
Random directed walk for 1250002 steps, including 0 resets, run took 3006 ms (no deadlock found). (steps per millisecond=415 )
[2025-06-06 07:57:13] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
// Phase 1: matrix 2732 rows 305 cols
[2025-06-06 07:57:13] [INFO ] Computed 1 invariants in 45 ms
[2025-06-06 07:57:14] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 8 ms returned sat
[2025-06-06 07:57:15] [INFO ] [Real]Absence check using state equation in 415 ms returned sat
[2025-06-06 07:57:15] [INFO ] Solution in real domain found non-integer solution.
[2025-06-06 07:57:15] [INFO ] [Nat]Absence check using 0 positive and 1 generalized place invariants in 7 ms returned sat
[2025-06-06 07:57:16] [INFO ] [Nat]Absence check using state equation in 519 ms returned sat
[2025-06-06 07:57:16] [INFO ] State equation strengthened by 147 read => feed constraints.
[2025-06-06 07:57:24] [INFO ] [Nat]Added 147 Read/Feed constraints in 7814 ms returned sat
[2025-06-06 07:57:24] [INFO ] Computed and/alt/rep : 9/11/9 causal constraints (skipped 2721 transitions) in 536 ms.
[2025-06-06 07:57:25] [INFO ] Added : 1 causal constraints over 1 iterations in 806 ms. Result :sat
Parikh directed walk for 4900 steps, including 4900 resets, run took 570 ms. (steps per millisecond=8 )
Random directed walk for 500001 steps, including 0 resets, run took 1276 ms (no deadlock found). (steps per millisecond=391 )
Random walk for 500000 steps, including 0 resets, run took 739 ms (no deadlock found). (steps per millisecond=676 )
Random directed walk for 500003 steps, including 0 resets, run took 1229 ms (no deadlock found). (steps per millisecond=406 )
Random walk for 500001 steps, including 0 resets, run took 736 ms (no deadlock found). (steps per millisecond=679 )
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 330 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
[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 07:57:30] [INFO ] Implicit Places using invariants in 466 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 07:57:54] [INFO ] Implicit Places using invariants and state equation in 24122 ms returned []
Implicit Place search using SMT with State Equation took 24591 ms to find 0 implicit places.
[2025-06-06 07:57:55] [INFO ] Redundant transitions in 914 ms returned []
Running 7934 sub problems to find dead transitions.
[2025-06-06 07:57:55] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2025-06-06 07:57:55] [INFO ] Invariant cache hit.
[2025-06-06 07:57:55] [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 30188 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 "Error writing to Z3 solver: java.io.IOException: Broken pipe")
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 30085 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 87796ms problems are : Problem set: 0 solved, 7934 unsolved
Search for dead transitions found 0 dead transitions in 87895ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 113780 ms. Remains : 305/305 places, 7936/7936 transitions.
Random walk for 1250002 steps, including 0 resets, run took 1837 ms (no deadlock found). (steps per millisecond=680 )
Random directed walk for 1250001 steps, including 0 resets, run took 2907 ms (no deadlock found). (steps per millisecond=429 )
[2025-06-06 07:59:28] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2025-06-06 07:59:28] [INFO ] Invariant cache hit.
[2025-06-06 07:59:28] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 5 ms returned sat
[2025-06-06 07:59:29] [INFO ] [Real]Absence check using state equation in 442 ms returned sat
[2025-06-06 07:59:29] [INFO ] Solution in real domain found non-integer solution.
[2025-06-06 07:59:29] [INFO ] [Nat]Absence check using 0 positive and 1 generalized place invariants in 5 ms returned sat
[2025-06-06 07:59:30] [INFO ] [Nat]Absence check using state equation in 515 ms returned sat
[2025-06-06 07:59:30] [INFO ] State equation strengthened by 147 read => feed constraints.
[2025-06-06 07:59:38] [INFO ] [Nat]Added 147 Read/Feed constraints in 7751 ms returned sat
[2025-06-06 07:59:39] [INFO ] Computed and/alt/rep : 9/11/9 causal constraints (skipped 2721 transitions) in 878 ms.
[2025-06-06 07:59:39] [INFO ] Added : 1 causal constraints over 1 iterations in 1136 ms. Result :sat
Parikh directed walk for 4900 steps, including 4900 resets, run took 536 ms. (steps per millisecond=9 )
Finished random directed walk after 332 steps, including 0 resets, run found a deadlock after 4 ms. (steps per millisecond=83 )
FORMULA ReachabilityDeadlock TRUE TECHNIQUES TOPOLOGICAL STRUCTURAL_REDUCTION RANDOM_WALK
Total runtime 152728 ms.
ITS solved all properties within timeout

BK_STOP 1749196780148

--------------------
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-b04"
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-b04, 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-174915605300086"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Szymanski-PT-b04.tgz
mv Szymanski-PT-b04 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 ;