Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r373-smll-167891824400131.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.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 2-5348
Executing tool lolaxred
Input is SafeBus-COL-06, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r373-smll-167891824400131
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 444K
-rw-r--r-- 1 mcc users 6.8K Feb 26 01:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K Feb 26 01:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Feb 26 01:29 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Feb 26 01:29 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:49 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 16:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 16:49 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.0K Feb 26 01:38 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 76K Feb 26 01:38 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 26 01:37 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 92K Feb 26 01:37 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 3 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 42K Mar 5 18:23 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 1679041430865

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=lolaxred
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=SafeBus-COL-06
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-17 08:23:53] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -timeout, 180, -rebuildPNML]
[2023-03-17 08:23:53] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 08:23:54] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2023-03-17 08:23:54] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-17 08:23:55] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1141 ms
[2023-03-17 08:23:55] [INFO ] Detected 1 constant HL places corresponding to 6 PT places.
[2023-03-17 08:23:55] [INFO ] Imported 20 HL places and 14 HL transitions for a total of 150 PT places and 2029.0 transition bindings in 28 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 2 ms.
Working with output stream class java.io.PrintStream
[2023-03-17 08:23:55] [INFO ] Built PT skeleton of HLPN with 20 places and 14 transitions 68 arcs in 5 ms.
[2023-03-17 08:23:55] [INFO ] Skeletonized 1 HLPN properties in 0 ms.
Reduce places removed 3 places and 0 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Prefix of Interest using HLPN skeleton for deadlock discarded 0 places and 0 transitions.
Domain [It(6), It(6)] of place AMC breaks symmetries in sort It
[2023-03-17 08:23:55] [INFO ] Unfolded HLPN to a Petri net with 150 places and 463 transitions 2962 arcs in 48 ms.
[2023-03-17 08:23:55] [INFO ] Unfolded 1 HLPN properties in 0 ms.
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 12 places and 12 transitions.
Built sparse matrix representations for Structural reductions in 1 ms.19699KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 138/138 places, 451/451 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 86 ms. Remains 138 /138 variables (removed 0) and now considering 451/451 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 86 ms. Remains : 138/138 places, 451/451 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 138/138 places, 451/451 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 52 ms. Remains 138 /138 variables (removed 0) and now considering 451/451 (removed 0) transitions.
[2023-03-17 08:23:55] [INFO ] Flow matrix only has 242 transitions (discarded 209 similar events)
// Phase 1: matrix 242 rows 138 cols
[2023-03-17 08:23:55] [INFO ] Computed 29 place invariants in 51 ms
[2023-03-17 08:23:56] [INFO ] Implicit Places using invariants in 808 ms returned [91, 92, 93, 94, 95, 96]
Discarding 6 places :
Implicit Place search using SMT only with invariants took 850 ms to find 6 implicit places.
Starting structural reductions in DEADLOCK mode, iteration 1 : 132/138 places, 451/451 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable 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 132 transition count 445
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 12 place count 126 transition count 445
Computed a total of 0 stabilizing places and 0 stable transitions
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: -114
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 24 place count 120 transition count 559
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 24 rules in 62 ms. Remains 120 /132 variables (removed 12) and now considering 559/451 (removed -108) transitions.
[2023-03-17 08:23:56] [INFO ] Flow matrix only has 350 transitions (discarded 209 similar events)
// Phase 1: matrix 350 rows 120 cols
[2023-03-17 08:23:56] [INFO ] Computed 23 place invariants in 10 ms
[2023-03-17 08:23:56] [INFO ] Implicit Places using invariants in 363 ms returned []
[2023-03-17 08:23:56] [INFO ] Flow matrix only has 350 transitions (discarded 209 similar events)
[2023-03-17 08:23:56] [INFO ] Invariant cache hit.
[2023-03-17 08:23:57] [INFO ] State equation strengthened by 43 read => feed constraints.
[2023-03-17 08:23:58] [INFO ] Implicit Places using invariants and state equation in 1225 ms returned []
Implicit Place search using SMT with State Equation took 1595 ms to find 0 implicit places.
Starting structural reductions in DEADLOCK mode, iteration 2 : 120/138 places, 559/451 transitions.
Finished structural reductions in DEADLOCK mode , in 2 iterations and 2560 ms. Remains : 120/138 places, 559/451 transitions.
Random walk for 1250000 steps, including 0 resets, run took 5166 ms (no deadlock found). (steps per millisecond=241 )
Random directed walk for 1250000 steps, including 0 resets, run took 3945 ms (no deadlock found). (steps per millisecond=316 )
[2023-03-17 08:24:07] [INFO ] Flow matrix only has 350 transitions (discarded 209 similar events)
[2023-03-17 08:24:07] [INFO ] Invariant cache hit.
[2023-03-17 08:24:07] [INFO ] [Real]Absence check using 11 positive place invariants in 8 ms returned sat
[2023-03-17 08:24:07] [INFO ] [Real]Absence check using 11 positive and 12 generalized place invariants in 78 ms returned sat
[2023-03-17 08:24:07] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 08:24:07] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2023-03-17 08:24:07] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 08:24:07] [INFO ] [Nat]Absence check using 11 positive place invariants in 9 ms returned sat
[2023-03-17 08:24:07] [INFO ] [Nat]Absence check using 11 positive and 12 generalized place invariants in 16 ms returned sat
[2023-03-17 08:24:07] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 08:24:07] [INFO ] [Nat]Absence check using state equation in 184 ms returned sat
[2023-03-17 08:24:07] [INFO ] State equation strengthened by 43 read => feed constraints.
[2023-03-17 08:24:08] [INFO ] [Nat]Added 43 Read/Feed constraints in 51 ms returned sat
[2023-03-17 08:24:08] [INFO ] Deduced a trap composed of 19 places in 91 ms of which 6 ms to minimize.
[2023-03-17 08:24:08] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 174 ms
[2023-03-17 08:24:08] [INFO ] Computed and/alt/rep : 36/66/36 causal constraints (skipped 308 transitions) in 125 ms.
[2023-03-17 08:24:08] [INFO ] Added : 3 causal constraints over 2 iterations in 252 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 4 ms.
Parikh directed walk for 13700 steps, including 965 resets, run took 158 ms. (steps per millisecond=86 )
Random directed walk for 500003 steps, including 0 resets, run took 1895 ms (no deadlock found). (steps per millisecond=263 )
Random walk for 500000 steps, including 0 resets, run took 2393 ms (no deadlock found). (steps per millisecond=208 )
Random directed walk for 500000 steps, including 0 resets, run took 2208 ms (no deadlock found). (steps per millisecond=226 )
Random walk for 500000 steps, including 0 resets, run took 2193 ms (no deadlock found). (steps per millisecond=227 )
Starting structural reductions in DEADLOCK mode, iteration 0 : 120/120 places, 559/559 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 54 ms. Remains 120 /120 variables (removed 0) and now considering 559/559 (removed 0) transitions.
[2023-03-17 08:24:17] [INFO ] Flow matrix only has 350 transitions (discarded 209 similar events)
[2023-03-17 08:24:17] [INFO ] Invariant cache hit.
[2023-03-17 08:24:17] [INFO ] Implicit Places using invariants in 394 ms returned []
[2023-03-17 08:24:17] [INFO ] Flow matrix only has 350 transitions (discarded 209 similar events)
[2023-03-17 08:24:17] [INFO ] Invariant cache hit.
[2023-03-17 08:24:18] [INFO ] State equation strengthened by 43 read => feed constraints.
[2023-03-17 08:24:18] [INFO ] Implicit Places using invariants and state equation in 1026 ms returned []
Implicit Place search using SMT with State Equation took 1426 ms to find 0 implicit places.
[2023-03-17 08:24:18] [INFO ] Redundant transitions in 65 ms returned []
[2023-03-17 08:24:18] [INFO ] Flow matrix only has 350 transitions (discarded 209 similar events)
[2023-03-17 08:24:18] [INFO ] Invariant cache hit.
[2023-03-17 08:24:19] [INFO ] Dead Transitions using invariants and state equation in 729 ms found 36 transitions.
Found 36 dead transitions using SMT.
Drop transitions removed 36 transitions
Dead transitions reduction (with SMT) removed 36 transitions
Starting structural reductions in DEADLOCK mode, iteration 1 : 120/120 places, 523/559 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 50 ms. Remains 120 /120 variables (removed 0) and now considering 523/523 (removed 0) transitions.
[2023-03-17 08:24:19] [INFO ] Redundant transitions in 20 ms returned []
Finished structural reductions in DEADLOCK mode , in 2 iterations and 2379 ms. Remains : 120/120 places, 523/559 transitions.
Random walk for 1250000 steps, including 0 resets, run took 4800 ms (no deadlock found). (steps per millisecond=260 )
Random directed walk for 1250000 steps, including 0 resets, run took 4190 ms (no deadlock found). (steps per millisecond=298 )
[2023-03-17 08:24:28] [INFO ] Flow matrix only has 350 transitions (discarded 173 similar events)
[2023-03-17 08:24:28] [INFO ] Invariant cache hit.
[2023-03-17 08:24:28] [INFO ] [Real]Absence check using 11 positive place invariants in 7 ms returned sat
[2023-03-17 08:24:28] [INFO ] [Real]Absence check using 11 positive and 12 generalized place invariants in 72 ms returned sat
[2023-03-17 08:24:28] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-17 08:24:29] [INFO ] [Real]Absence check using state equation in 142 ms returned sat
[2023-03-17 08:24:29] [INFO ] Solution in real domain found non-integer solution.
[2023-03-17 08:24:29] [INFO ] [Nat]Absence check using 11 positive place invariants in 8 ms returned sat
[2023-03-17 08:24:29] [INFO ] [Nat]Absence check using 11 positive and 12 generalized place invariants in 36 ms returned sat
[2023-03-17 08:24:29] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-17 08:24:29] [INFO ] [Nat]Absence check using state equation in 193 ms returned sat
[2023-03-17 08:24:29] [INFO ] State equation strengthened by 43 read => feed constraints.
[2023-03-17 08:24:29] [INFO ] [Nat]Added 43 Read/Feed constraints in 47 ms returned sat
[2023-03-17 08:24:29] [INFO ] Computed and/alt/rep : 36/66/36 causal constraints (skipped 308 transitions) in 108 ms.
[2023-03-17 08:24:29] [INFO ] Added : 0 causal constraints over 0 iterations in 164 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 6 ms.
Parikh directed walk for 3400 steps, including 621 resets, run took 31 ms. (steps per millisecond=109 )
Random directed walk for 500000 steps, including 0 resets, run took 1918 ms (no deadlock found). (steps per millisecond=260 )
Random walk for 500000 steps, including 0 resets, run took 1879 ms (no deadlock found). (steps per millisecond=266 )
Random directed walk for 500000 steps, including 0 resets, run took 1691 ms (no deadlock found). (steps per millisecond=295 )
Random walk for 500000 steps, including 0 resets, run took 1851 ms (no deadlock found). (steps per millisecond=270 )
[2023-03-17 08:24:37] [INFO ] Flatten gal took : 199 ms
[2023-03-17 08:24:37] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityDeadlock.sr.xml took 2 ms.
[2023-03-17 08:24:37] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 138 places, 451 transitions and 2908 arcs took 10 ms.
Total runtime 43454 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT SafeBus-COL-06
BK_EXAMINATION: ReachabilityDeadlock
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/364
GlobalProperty: ReachabilityDeadlock

FORMULA ReachabilityDeadlock FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1679041549085

--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityDeadlock -timeout 180 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/364/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/364/model.pnml
lola: STP: formula with 82775 variables and 507710 clauses shipped to Minisat
lola: SIPHON RESULT 1
lola: No deadlock is reachable.

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="SafeBus-COL-06"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="lolaxred"
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 2-5348"
echo " Executing tool lolaxred"
echo " Input is SafeBus-COL-06, 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 r373-smll-167891824400131"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SafeBus-COL-06.tgz
mv SafeBus-COL-06 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityDeadlock.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 ;