Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2020-input.r179-tajo-158987887300091.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2020-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
....................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itslola
Input is DNAwalker-PT-09ringLR, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r179-tajo-158987887300091
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 284K
-rw-r--r-- 1 mcc users 3.4K Mar 31 04:57 CTLCardinality.txt
-rw-r--r-- 1 mcc users 19K Mar 31 04:57 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 29 20:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 15K Mar 29 20:53 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.2K Apr 8 14:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Apr 28 14:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Apr 8 14:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 28 14:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 28 13:42 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 28 13:42 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.2K Mar 27 06:26 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 21K Mar 27 06:26 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 28 14:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 28 14:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 9 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 112K Mar 24 05:37 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 1591280826745

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-04 14:27:08] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 1800, -rebuildPNML]
[2020-06-04 14:27:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-04 14:27:08] [INFO ] Load time of PNML (sax parser for PT used): 54 ms
[2020-06-04 14:27:08] [INFO ] Transformed 27 places.
[2020-06-04 14:27:08] [INFO ] Transformed 260 transitions.
[2020-06-04 14:27:08] [INFO ] Parsed PT model containing 27 places and 260 transitions in 94 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 8 ms.
Working with output stream class java.io.PrintStream
Built sparse matrix representations for Structural reductions in 4 ms.15447KB memory used
Starting structural reductions, iteration 0 : 27/27 places, 260/260 transitions.
Applied a total of 0 rules in 21 ms. Remains 27 /27 variables (removed 0) and now considering 260/260 (removed 0) transitions.
[2020-06-04 14:27:08] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2020-06-04 14:27:08] [INFO ] Computed 0 place invariants in 6 ms
[2020-06-04 14:27:08] [INFO ] Dead Transitions using invariants and state equation in 272 ms returned []
Finished structural reductions, in 1 iterations. Remains : 27/27 places, 260/260 transitions.
Starting structural reductions, iteration 0 : 27/27 places, 260/260 transitions.
Applied a total of 0 rules in 9 ms. Remains 27 /27 variables (removed 0) and now considering 260/260 (removed 0) transitions.
[2020-06-04 14:27:08] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2020-06-04 14:27:08] [INFO ] Computed 0 place invariants in 9 ms
[2020-06-04 14:27:08] [INFO ] Implicit Places using invariants in 57 ms returned []
[2020-06-04 14:27:08] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2020-06-04 14:27:08] [INFO ] Computed 0 place invariants in 7 ms
[2020-06-04 14:27:08] [INFO ] State equation strengthened by 70 read => feed constraints.
[2020-06-04 14:27:09] [INFO ] Implicit Places using invariants and state equation in 251 ms returned []
Implicit Place search using SMT with State Equation took 311 ms to find 0 implicit places.
[2020-06-04 14:27:09] [INFO ] Redundant transitions in 33 ms returned []
[2020-06-04 14:27:09] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2020-06-04 14:27:09] [INFO ] Computed 0 place invariants in 2 ms
[2020-06-04 14:27:09] [INFO ] Dead Transitions using invariants and state equation in 141 ms returned []
Finished structural reductions, in 1 iterations. Remains : 27/27 places, 260/260 transitions.
Random walk for 1250000 steps, including 100238 resets, run took 5145 ms (no deadlock found). (steps per millisecond=242 )
Random directed walk for 1250012 steps, including 23054 resets, run took 3314 ms (no deadlock found). (steps per millisecond=377 )
[2020-06-04 14:27:17] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2020-06-04 14:27:17] [INFO ] Computed 0 place invariants in 2 ms
[2020-06-04 14:27:17] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-04 14:27:17] [INFO ] [Real]Absence check using state equation in 53 ms returned sat
[2020-06-04 14:27:17] [INFO ] Solution in real domain found non-integer solution.
[2020-06-04 14:27:17] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2020-06-04 14:27:18] [INFO ] [Nat]Absence check using state equation in 59 ms returned sat
[2020-06-04 14:27:18] [INFO ] State equation strengthened by 70 read => feed constraints.
[2020-06-04 14:27:18] [INFO ] [Nat]Added 70 Read/Feed constraints in 101 ms returned sat
[2020-06-04 14:27:18] [INFO ] Computed and/alt/rep : 234/3628/233 causal constraints in 38 ms.
[2020-06-04 14:27:18] [INFO ] Added : 26 causal constraints over 6 iterations in 243 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 17 ms.
Parikh directed walk for 2600 steps, including 167 resets, run took 20 ms. (steps per millisecond=130 )
Random directed walk for 500026 steps, including 9205 resets, run took 1315 ms (no deadlock found). (steps per millisecond=380 )
Random walk for 500000 steps, including 40250 resets, run took 1742 ms (no deadlock found). (steps per millisecond=287 )
Random directed walk for 500003 steps, including 9195 resets, run took 1169 ms (no deadlock found). (steps per millisecond=427 )
Random walk for 500000 steps, including 40219 resets, run took 1705 ms (no deadlock found). (steps per millisecond=293 )
[2020-06-04 14:27:24] [INFO ] Flatten gal took : 107 ms
[2020-06-04 14:27:24] [INFO ] Export to MCC properties in file /home/mcc/execution/ReachabilityDeadlock.sr.xml took 13 ms.
[2020-06-04 14:27:24] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 5 ms.
info: Time: 1800 - MCC
vrfy: Checking ReachabilityDeadlock @ DNAwalker-PT-09ringLR @ 1770 seconds

FORMULA ReachabilityDeadlock FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS SYMMETRIES TOPOLOGICAL USE_NUPN UNFOLDING_TO_PT
vrfy: finished
info: timeLeft: 1672
rslt: Output for ReachabilityDeadlock @ DNAwalker-PT-09ringLR

{
"build":
{
"architecture": 64,
"assertions": false,
"build_hostname": "mcc2019",
"build_system": "x86_64-unknown-linux-gnu",
"optimizations": true,
"package_version": "2.0",
"svn_version": "3189M"
},
"call":
{
"exec_host": "mcc2020",
"markinglimit": null,
"parameters":
[
"--pnmlnet",
"model.pnml",
"--xmlformula",
"--formula=ReachabilityDeadlock.xml",
"--mcc",
"--donotcomputecapacities",
"--encoder=simplecompressed",
"--check=modelchecking",
"--stubborn=combined",
"--siphontrap=par",
"--siphondepth=10",
"--findpath=par",
"--retrylimit=0",
"--depthlimit=1000000",
"--symmetry",
"--symmtimelimit=300",
"--threads=2",
"--symmetrydepth=1073741824",
"--timelimit=1770",
"--json=ReachabilityDeadlock.json",
"--jsoninclude=formula,formulastat,net"
],
"starttime": "Thu Jun 4 14:27:25 2020
",
"timelimit": 1770
},
"child": null,
"exit":
{
"error": null,
"memory": 123656,
"runtime": 98.000000,
"signal": null,
"timelimitreached": false
},
"files":
{
"formula": "ReachabilityDeadlock.xml",
"net": "model.pnml"
},
"formula":
{
"count":
{
"A": 0,
"E": 1,
"F": 1,
"G": 0,
"U": 0,
"X": 0,
"aconj": 0,
"adisj": 0,
"aneg": 0,
"comp": 0,
"cont": 0,
"dl": 1,
"fir": 0,
"nodl": 0,
"place_references": 0,
"taut": 0,
"tconj": 0,
"tdisj": 0,
"tneg": 0,
"transition_references": 0,
"unfir": 0,
"visible_places": 0,
"visible_transitions": 0
},
"processed": "E (F (DEADLOCK))",
"processed_size": 16,
"rewrites": 1,
"skeleton": "E(F(**))"
},
"net":
{
"arcs": 760,
"conflict_clusters": 7,
"places": 27,
"places_significant": 27,
"singleton_clusters": 0,
"transitions": 260
},
"result":
{
"edges": 14962948,
"markings": 2801293,
"produced_by": "state space",
"value": false
},
"task":
{
"findpath":
{
"depthlimit": 1000000,
"retrylimit": null,
"stubborn":
{
"type": "reachability preserving/insertion"
},
"threads": 2
},
"search":
{
"store":
{
"encoder": "simple compression",
"type": "prefix"
},
"stubborn":
{
"type": "reachability preserving/insertion"
},
"symmetry":
{
"card": 1.000000,
"composed": 0,
"dead_branches": 0,
"generators": 0,
"interrupted": false,
"real_computed": 0,
"timelimit": 300
},
"threads": 2,
"type": "dfs"
},
"type": "reachability",
"workflow": "findpath||search"
}
}
lola: LoLA will run for 1770 seconds at most (--timelimit)
lola: NET
lola: input: PNML file (--pnml)
lola: reading net from model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file model.pnml
lola: 287/268435456 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 864
lola: finding significant places
lola: 27 places, 260 transitions, 27 significant places
lola: compute conflict clusters
lola: computed conflict clusters
lola: Computing conflicting sets
lola: Computing back conflicting sets
lola: TASK
lola: Reading formula in XML format (--xmlformula)
lola: reading pnml
lola: reading formula from ReachabilityDeadlock.xml
lola: E (F (DEADLOCK))
lola: checking reachability
lola: Planning: workflow for reachability check: findpath||search (--findpath=par)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: processed formula: E (F (DEADLOCK))
lola: processed formula length: 16
lola: 1 rewrites
lola: closed formula file ReachabilityDeadlock.xml
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: SEARCH (state space)
lola: state space: using reachability graph (--search=depth)
lola: state space: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: rewrite Frontend/Parser/formula_rewrite.k:711
lola: SEARCH (findpath)
lola: findpath: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: findpath: starting randomized, memory-less exploration (--findpath)
lola: findpath: searching for paths with maximal depth 1000000 (--depthlimit)
lola: computing symmetries (--symmetry)
lola: time limit for symmetry computation of 300 seconds given (--symmtimelimit)
lola: findpath: no retry limit given (--retrylimit)
lola: findpath: transitions are chosen hash-driven
lola: computed 0 generators (0 in search tree, 0 by composition)
lola: representing 1 symmetries
lola: 0 dead branches visited in search tree
lola: 10 tries, 9295492 fired transitions, 0 secs || 220857 markings, 864089 edges, 44171 markings/sec, 0 secs
lola: 20 tries, 19468453 fired transitions, 5 secs || 372606 markings, 1510127 edges, 30350 markings/sec, 5 secs
lola: 31 tries, 30530681 fired transitions, 10 secs || 523085 markings, 2204190 edges, 30096 markings/sec, 10 secs
lola: 42 tries, 41543568 fired transitions, 15 secs || 669988 markings, 2891516 edges, 29381 markings/sec, 15 secs
lola: 53 tries, 52039933 fired transitions, 20 secs || 813291 markings, 3558154 edges, 28661 markings/sec, 20 secs
lola: 64 tries, 63027028 fired transitions, 25 secs || 960258 markings, 4285967 edges, 29393 markings/sec, 25 secs
lola: 74 tries, 73820894 fired transitions, 30 secs || 1099567 markings, 4985138 edges, 27862 markings/sec, 30 secs
lola: 85 tries, 84689471 fired transitions, 35 secs || 1238723 markings, 5701148 edges, 27831 markings/sec, 35 secs
lola: 96 tries, 95751614 fired transitions, 40 secs || 1381127 markings, 6444581 edges, 28481 markings/sec, 40 secs
lola: 105 tries, 104494059 fired transitions, 45 secs || 1531848 markings, 7247440 edges, 30144 markings/sec, 45 secs
lola: 114 tries, 113153878 fired transitions, 50 secs || 1683649 markings, 8085024 edges, 30360 markings/sec, 50 secs
lola: 122 tries, 121822923 fired transitions, 55 secs || 1835720 markings, 8954065 edges, 30414 markings/sec, 55 secs
lola: 131 tries, 130670203 fired transitions, 60 secs || 1978916 markings, 9835895 edges, 28639 markings/sec, 60 secs
lola: 140 tries, 139372792 fired transitions, 65 secs || 2129595 markings, 10692217 edges, 30136 markings/sec, 65 secs
lola: 149 tries, 148233201 fired transitions, 70 secs || 2275014 markings, 11567586 edges, 29084 markings/sec, 70 secs
lola: 158 tries, 157135595 fired transitions, 75 secs || 2417412 markings, 12449960 edges, 28480 markings/sec, 75 secs
lola: 167 tries, 166571077 fired transitions, 80 secs || 2549329 markings, 13284882 edges, 26383 markings/sec, 80 secs
lola: 178 tries, 177663701 fired transitions, 85 secs || 2678178 markings, 14110804 edges, 25770 markings/sec, 85 secs
lola: RESULT
lola: result: no
lola: produced by: state space
lola: The predicate is unreachable.
lola: 2801293 markings, 14962948 edges
lola: memory consumption: 123656 KB
lola: time consumption: 98 seconds
lola: print data as JSON (--json)
lola: writing JSON to ReachabilityDeadlock.json
lola: closed JSON file ReachabilityDeadlock.json
rslt: finished

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

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="DNAwalker-PT-09ringLR"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="itslola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
export BK_MEMORY_CONFINEMENT="16384"

# 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 2-4028"
echo " Executing tool itslola"
echo " Input is DNAwalker-PT-09ringLR, 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 r179-tajo-158987887300091"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-09ringLR.tgz
mv DNAwalker-PT-09ringLR 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 ;