fond
Model Checking Contest 2021
11th edition, Paris, France, June 23, 2021
Execution of r254-tall-162106745500076
Last Updated
Jun 28, 2021

About the Execution of ITS-Tools for SmallOperatingSystem-PT-MT0512DC0128

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
604.815 67368.00 74825.00 430.00 FTTFTFFFFFFFFTFT normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r254-tall-162106745500076.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2021-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 itstools
Input is SmallOperatingSystem-PT-MT0512DC0128, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r254-tall-162106745500076
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 392K
-rw-r--r-- 1 mcc users 18K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 114K May 10 09:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 11K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 77K May 10 09:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.7K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.2K Mar 28 16:42 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 28 16:42 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 28 16:42 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 28 16:42 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.7K Mar 27 13:40 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 21K Mar 27 13:40 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.3K Mar 25 19:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 25 19:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.0K Mar 22 08:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K Mar 22 08:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:52 equiv_col
-rw-r--r-- 1 mcc users 13 May 5 16:52 instance
-rw-r--r-- 1 mcc users 6 May 5 16:52 iscolored
-rw-r--r-- 1 mcc users 8.2K May 5 16:52 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-00
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-01
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-02
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-03
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-04
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-05
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-06
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-07
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-08
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-09
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-10
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-11
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-12
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-13
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-14
FORMULA_NAME SmallOperatingSystem-PT-MT0512DC0128-15

=== Now, execution of the tool begins

BK_START 1621149657181

Running Version 0
[2021-05-16 07:20:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2021-05-16 07:20:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-16 07:20:58] [INFO ] Load time of PNML (sax parser for PT used): 19 ms
[2021-05-16 07:20:58] [INFO ] Transformed 9 places.
[2021-05-16 07:20:58] [INFO ] Transformed 8 transitions.
[2021-05-16 07:20:58] [INFO ] Parsed PT model containing 9 places and 8 transitions in 56 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 10 ms.
Working with output stream class java.io.PrintStream
[2021-05-16 07:20:58] [INFO ] Initial state test concluded for 6 properties.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT0512DC0128-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT0512DC0128-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT0512DC0128-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 9 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Applied a total of 0 rules in 8 ms. Remains 9 /9 variables (removed 0) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 9 cols
[2021-05-16 07:20:58] [INFO ] Computed 4 place invariants in 4 ms
[2021-05-16 07:20:58] [INFO ] Implicit Places using invariants in 57 ms returned []
// Phase 1: matrix 8 rows 9 cols
[2021-05-16 07:20:58] [INFO ] Computed 4 place invariants in 1 ms
[2021-05-16 07:20:58] [INFO ] Implicit Places using invariants and state equation in 25 ms returned []
Implicit Place search using SMT with State Equation took 107 ms to find 0 implicit places.
// Phase 1: matrix 8 rows 9 cols
[2021-05-16 07:20:58] [INFO ] Computed 4 place invariants in 1 ms
[2021-05-16 07:20:59] [INFO ] Dead Transitions using invariants and state equation in 17 ms returned []
Finished structural reductions, in 1 iterations. Remains : 9/9 places, 8/8 transitions.
[2021-05-16 07:20:59] [INFO ] Initial state reduction rules for LTL removed 3 formulas.
[2021-05-16 07:20:59] [INFO ] Flatten gal took : 16 ms
FORMULA SmallOperatingSystem-PT-MT0512DC0128-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT0512DC0128-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT0512DC0128-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2021-05-16 07:20:59] [INFO ] Flatten gal took : 3 ms
[2021-05-16 07:20:59] [INFO ] Input system was already deterministic with 8 transitions.
Incomplete random walk after 100081 steps, including 2 resets, run finished after 47 ms. (steps per millisecond=2129 ) properties (out of 17) seen :13
Running SMT prover for 4 properties.
// Phase 1: matrix 8 rows 9 cols
[2021-05-16 07:20:59] [INFO ] Computed 4 place invariants in 1 ms
[2021-05-16 07:20:59] [INFO ] [Real]Absence check using 4 positive place invariants in 2 ms returned unsat
[2021-05-16 07:20:59] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned unsat
[2021-05-16 07:20:59] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned unsat
[2021-05-16 07:20:59] [INFO ] [Real]Absence check using 4 positive place invariants in 1 ms returned unsat
Successfully simplified 4 atomic propositions for a total of 9 simplifications.
[2021-05-16 07:20:59] [INFO ] Initial state test concluded for 1 properties.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT0512DC0128-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(X((p0&&X((p1 U (p2||G(p1)))))))], workingDir=/home/mcc/execution]
Support contains 4 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Applied a total of 1 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:20:59] [INFO ] Computed 3 place invariants in 1 ms
[2021-05-16 07:20:59] [INFO ] Implicit Places using invariants in 10 ms returned []
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:20:59] [INFO ] Computed 3 place invariants in 1 ms
[2021-05-16 07:20:59] [INFO ] Implicit Places using invariants and state equation in 34 ms returned []
Implicit Place search using SMT with State Equation took 46 ms to find 0 implicit places.
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:20:59] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:20:59] [INFO ] Dead Transitions using invariants and state equation in 16 ms returned []
Finished structural reductions, in 1 iterations. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 219 ms :[true, (OR (NOT p0) (AND (NOT p1) (NOT p2))), (OR (NOT p0) (AND (NOT p1) (NOT p2))), (AND (NOT p2) (NOT p1))]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-00 automaton TGBA [mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=(NOT p0), acceptance={} source=2 dest: 0}, { cond=p0, acceptance={} source=2 dest: 3}], [{ cond=(AND (NOT p2) (NOT p1)), acceptance={} source=3 dest: 0}, { cond=(AND (NOT p2) p1), acceptance={} source=3 dest: 3}]], initial=1, aps=[p0:(GT s2 s1), p2:(AND (GT s2 s7) (GT s2 s5)), p1:(GT s2 s5)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 1 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-00 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-00 finished in 321 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(X(p0))], workingDir=/home/mcc/execution]
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 7 transition count 7
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 7 transition count 7
Applied a total of 3 rules in 2 ms. Remains 7 /9 variables (removed 2) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:20:59] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:20:59] [INFO ] Implicit Places using invariants in 11 ms returned []
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:20:59] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:20:59] [INFO ] Implicit Places using invariants and state equation in 19 ms returned []
Implicit Place search using SMT with State Equation took 35 ms to find 0 implicit places.
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:20:59] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:20:59] [INFO ] Dead Transitions using invariants and state equation in 23 ms returned []
Finished structural reductions, in 1 iterations. Remains : 7/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 55 ms :[(NOT p0), (NOT p0), true]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-01 automaton TGBA [mat=[[{ cond=(NOT p0), acceptance={} source=0 dest: 2}], [{ cond=true, acceptance={} source=1 dest: 0}], [{ cond=true, acceptance={0} source=2 dest: 2}]], initial=1, aps=[p0:(LEQ s4 s1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 168 ms.
Product exploration explored 100000 steps with 50000 reset in 106 ms.
Knowledge obtained : [p0]
Stuttering acceptance computed with spot in 54 ms :[(NOT p0), (NOT p0), true]
Product exploration explored 100000 steps with 50000 reset in 84 ms.
Product exploration explored 100000 steps with 50000 reset in 160 ms.
Applying partial POR strategy [true, false, true]
Stuttering acceptance computed with spot in 58 ms :[(NOT p0), (NOT p0), true]
Support contains 2 out of 7 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions, iteration 0 : 7/7 places, 7/7 transitions.
Applied a total of 0 rules in 3 ms. Remains 7 /7 variables (removed 0) and now considering 7/7 (removed 0) transitions.
[2021-05-16 07:21:00] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:21:00] [INFO ] Computed 3 place invariants in 1 ms
[2021-05-16 07:21:00] [INFO ] Dead Transitions using invariants and state equation in 10 ms returned []
Finished structural reductions, in 1 iterations. Remains : 7/7 places, 7/7 transitions.
Product exploration explored 100000 steps with 50000 reset in 249 ms.
Product exploration explored 100000 steps with 50000 reset in 214 ms.
[2021-05-16 07:21:01] [INFO ] Flatten gal took : 2 ms
[2021-05-16 07:21:01] [INFO ] Flatten gal took : 2 ms
[2021-05-16 07:21:01] [INFO ] Time to serialize gal into /tmp/LTL2919250410042464517.gal : 1 ms
[2021-05-16 07:21:01] [INFO ] Time to serialize properties into /tmp/LTL6428154054127732950.ltl : 0 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTL2919250410042464517.gal, -t, CGAL, -LTL, /tmp/LTL6428154054127732950.ltl, -c, -stutter-deadlock, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTL2919250410042464517.gal -t CGAL -LTL /tmp/LTL6428154054127732950.ltl -c -stutter-deadlock --gen-order FOLLOW
Read 1 LTL properties
Checking formula 0 : !((X("(TaskSuspended<=DiskControllerUnit)")))
Formula 0 simplified : !X"(TaskSuspended<=DiskControllerUnit)"
Detected timeout of ITS tools.
[2021-05-16 07:21:16] [INFO ] Flatten gal took : 1 ms
[2021-05-16 07:21:16] [INFO ] Applying decomposition
[2021-05-16 07:21:16] [INFO ] Flatten gal took : 1 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph10108239077759482253.txt, -o, /tmp/graph10108239077759482253.bin, -w, /tmp/graph10108239077759482253.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph10108239077759482253.bin, -l, -1, -v, -w, /tmp/graph10108239077759482253.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-16 07:21:16] [INFO ] Decomposing Gal with order
[2021-05-16 07:21:16] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-16 07:21:16] [INFO ] Removed a total of 1 redundant transitions.
[2021-05-16 07:21:16] [INFO ] Flatten gal took : 21 ms
[2021-05-16 07:21:16] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2021-05-16 07:21:16] [INFO ] Time to serialize gal into /tmp/LTL11918154819382292619.gal : 1 ms
[2021-05-16 07:21:16] [INFO ] Time to serialize properties into /tmp/LTL6248162513438687930.ltl : 0 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTL11918154819382292619.gal, -t, CGAL, -LTL, /tmp/LTL6248162513438687930.ltl, -c, -stutter-deadlock, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTL11918154819382292619.gal -t CGAL -LTL /tmp/LTL6248162513438687930.ltl -c -stutter-deadlock --gen-order FOLLOW
Read 1 LTL properties
Checking formula 0 : !((X("(gu1.TaskSuspended<=gu1.DiskControllerUnit)")))
Formula 0 simplified : !X"(gu1.TaskSuspended<=gu1.DiskControllerUnit)"
Detected timeout of ITS tools.
Built C files in :
/tmp/ltsmin6085128994410773773
[2021-05-16 07:21:31] [INFO ] Built C files in 13ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin6085128994410773773
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin6085128994410773773]
Compilation finished in 165 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/tmp/ltsmin6085128994410773773]
Link finished in 46 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/pins2lts-mc-linux64, ./gal.so, --threads=8, --when, --ltl, X((LTLAPp0==true)), --buchi-type=spotba], workingDir=/tmp/ltsmin6085128994410773773]
LTSmin run took 149 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-01 TRUE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-01 finished in 31908 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(G(F(p0)))], workingDir=/home/mcc/execution]
Support contains 1 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 7
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 2 place count 7 transition count 7
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 3 rules applied. Total rules applied 5 place count 5 transition count 6
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 7 place count 4 transition count 6
Applied a total of 7 rules in 5 ms. Remains 4 /9 variables (removed 5) and now considering 6/8 (removed 2) transitions.
[2021-05-16 07:21:31] [INFO ] Flow matrix only has 5 transitions (discarded 1 similar events)
// Phase 1: matrix 5 rows 4 cols
[2021-05-16 07:21:31] [INFO ] Computed 2 place invariants in 0 ms
[2021-05-16 07:21:31] [INFO ] Implicit Places using invariants in 9 ms returned []
[2021-05-16 07:21:31] [INFO ] Flow matrix only has 5 transitions (discarded 1 similar events)
// Phase 1: matrix 5 rows 4 cols
[2021-05-16 07:21:31] [INFO ] Computed 2 place invariants in 1 ms
[2021-05-16 07:21:31] [INFO ] State equation strengthened by 1 read => feed constraints.
[2021-05-16 07:21:31] [INFO ] Implicit Places using invariants and state equation in 11 ms returned []
Implicit Place search using SMT with State Equation took 20 ms to find 0 implicit places.
[2021-05-16 07:21:31] [INFO ] Redundant transitions in 0 ms returned []
[2021-05-16 07:21:31] [INFO ] Flow matrix only has 5 transitions (discarded 1 similar events)
// Phase 1: matrix 5 rows 4 cols
[2021-05-16 07:21:31] [INFO ] Computed 2 place invariants in 0 ms
[2021-05-16 07:21:31] [INFO ] Dead Transitions using invariants and state equation in 15 ms returned []
Finished structural reductions, in 1 iterations. Remains : 4/9 places, 6/8 transitions.
Stuttering acceptance computed with spot in 53 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-06 automaton TGBA [mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(LEQ 1 s2)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 0 steps with 0 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-06 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-06 finished in 107 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !((F(G(p0))||G((p1 U p2))))], workingDir=/home/mcc/execution]
Support contains 4 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Applied a total of 0 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:21:31] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:21:31] [INFO ] Implicit Places using invariants in 9 ms returned []
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:21:31] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:21:31] [INFO ] Implicit Places using invariants and state equation in 16 ms returned []
Implicit Place search using SMT with State Equation took 26 ms to find 0 implicit places.
[2021-05-16 07:21:31] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:21:31] [INFO ] Computed 3 place invariants in 1 ms
[2021-05-16 07:21:31] [INFO ] Dead Transitions using invariants and state equation in 11 ms returned []
Finished structural reductions, in 1 iterations. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 77 ms :[(AND (NOT p0) (NOT p2)), (NOT p0), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-08 automaton TGBA [mat=[[{ cond=(OR p2 p1), acceptance={} source=0 dest: 0}, { cond=(AND (NOT p2) (NOT p1)), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p2) p1 (NOT p0)), acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}, { cond=p0, acceptance={} source=1 dest: 1}], [{ cond=(AND (NOT p2) (NOT p1)), acceptance={} source=2 dest: 1}, { cond=(AND (NOT p2) p1 (NOT p0)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p2) p1 p0), acceptance={} source=2 dest: 2}]], initial=0, aps=[p2:(LEQ 1 s0), p1:(LEQ s3 s7), p0:(LEQ 2 s6)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant], stateDesc=[null, null, null][true, true, true]]
Product exploration explored 100000 steps with 0 reset in 134 ms.
Product exploration explored 100000 steps with 0 reset in 257 ms.
Knowledge obtained : [p2, p1, (NOT p0)]
Stuttering acceptance computed with spot in 77 ms :[(AND (NOT p0) (NOT p2)), (NOT p0), (AND (NOT p0) (NOT p2))]
Product exploration explored 100000 steps with 0 reset in 91 ms.
Product exploration explored 100000 steps with 0 reset in 245 ms.
[2021-05-16 07:21:32] [INFO ] Flatten gal took : 2 ms
[2021-05-16 07:21:32] [INFO ] Flatten gal took : 1 ms
[2021-05-16 07:21:32] [INFO ] Time to serialize gal into /tmp/LTL4332413934854621901.gal : 0 ms
[2021-05-16 07:21:32] [INFO ] Time to serialize properties into /tmp/LTL13116783532877955353.ltl : 0 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTL4332413934854621901.gal, -t, CGAL, -LTL, /tmp/LTL13116783532877955353.ltl, -c, -stutter-deadlock, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTL4332413934854621901.gal -t CGAL -LTL /tmp/LTL13116783532877955353.ltl -c -stutter-deadlock --gen-order FOLLOW
Read 1 LTL properties
Checking formula 0 : !(((F(G("(ExecutingTask>=2)")))||(G(("(TaskReady<=LoadingMem)")U("(FreeMemSegment>=1)")))))
Formula 0 simplified : !(FG"(ExecutingTask>=2)" | G("(TaskReady<=LoadingMem)" U "(FreeMemSegment>=1)"))
Detected timeout of ITS tools.
[2021-05-16 07:21:47] [INFO ] Flatten gal took : 1 ms
[2021-05-16 07:21:47] [INFO ] Applying decomposition
[2021-05-16 07:21:47] [INFO ] Flatten gal took : 1 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph16927061762419613181.txt, -o, /tmp/graph16927061762419613181.bin, -w, /tmp/graph16927061762419613181.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph16927061762419613181.bin, -l, -1, -v, -w, /tmp/graph16927061762419613181.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-16 07:21:47] [INFO ] Decomposing Gal with order
[2021-05-16 07:21:47] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-16 07:21:47] [INFO ] Flatten gal took : 2 ms
[2021-05-16 07:21:47] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 0 ms.
[2021-05-16 07:21:47] [INFO ] Time to serialize gal into /tmp/LTL10943772472380405749.gal : 1 ms
[2021-05-16 07:21:47] [INFO ] Time to serialize properties into /tmp/LTL7613823037362798224.ltl : 0 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /tmp/LTL10943772472380405749.gal, -t, CGAL, -LTL, /tmp/LTL7613823037362798224.ltl, -c, -stutter-deadlock, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ltl-linux64 --gc-threshold 2000000 -i /tmp/LTL10943772472380405749.gal -t CGAL -LTL /tmp/LTL7613823037362798224.ltl -c -stutter-deadlock --gen-order FOLLOW
Read 1 LTL properties
Checking formula 0 : !(((F(G("(gi0.gu1.ExecutingTask>=2)")))||(G(("(gu2.TaskReady<=gu2.LoadingMem)")U("(gu2.FreeMemSegment>=1)")))))
Formula 0 simplified : !(FG"(gi0.gu1.ExecutingTask>=2)" | G("(gu2.TaskReady<=gu2.LoadingMem)" U "(gu2.FreeMemSegment>=1)"))
Detected timeout of ITS tools.
Built C files in :
/tmp/ltsmin73742119250151519
[2021-05-16 07:22:02] [INFO ] Built C files in 1ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin73742119250151519
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/include/, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/tmp/ltsmin73742119250151519]
Compilation finished in 100 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/tmp/ltsmin73742119250151519]
Link finished in 37 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.ltsmin.binaries_1.0.0.202104292328/bin/pins2lts-mc-linux64, ./gal.so, --threads=8, --when, --ltl, (<>([]((LTLAPp0==true)))||[](((LTLAPp1==true) U (LTLAPp2==true)))), --buchi-type=spotba], workingDir=/tmp/ltsmin73742119250151519]
LTSmin run took 211 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-08 FALSE TECHNIQUES EXPLICIT LTSMIN SAT_SMT
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-08 finished in 31480 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(F(G(p0)))], workingDir=/home/mcc/execution]
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Discarding 1 places :
Symmetric choice reduction at 0 with 1 rule applications. Total rules 1 place count 7 transition count 7
Iterating global reduction 0 with 1 rules applied. Total rules applied 2 place count 7 transition count 7
Applied a total of 2 rules in 2 ms. Remains 7 /9 variables (removed 2) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 3 ms
[2021-05-16 07:22:03] [INFO ] Implicit Places using invariants in 17 ms returned []
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 2 ms
[2021-05-16 07:22:03] [INFO ] Implicit Places using invariants and state equation in 16 ms returned []
Implicit Place search using SMT with State Equation took 33 ms to find 0 implicit places.
[2021-05-16 07:22:03] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 1 ms
[2021-05-16 07:22:03] [INFO ] Dead Transitions using invariants and state equation in 10 ms returned []
Finished structural reductions, in 1 iterations. Remains : 7/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 24 ms :[(NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-10 automaton TGBA [mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={} source=0 dest: 0}]], initial=0, aps=[p0:(LEQ s5 s1)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-invariant], stateDesc=[null][true]]
Product exploration explored 100000 steps with 0 reset in 84 ms.
Stack based approach found an accepted trace after 3 steps with 0 reset with depth 4 and stack size 4 in 0 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-10 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-10 finished in 164 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(X((p0&&F(G(p0)))))], workingDir=/home/mcc/execution]
Support contains 2 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Applied a total of 1 rules in 1 ms. Remains 8 /9 variables (removed 1) and now considering 8/8 (removed 0) transitions.
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:22:03] [INFO ] Implicit Places using invariants in 10 ms returned []
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:22:03] [INFO ] Implicit Places using invariants and state equation in 11 ms returned []
Implicit Place search using SMT with State Equation took 21 ms to find 0 implicit places.
// Phase 1: matrix 8 rows 8 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:22:03] [INFO ] Dead Transitions using invariants and state equation in 12 ms returned []
Finished structural reductions, in 1 iterations. Remains : 8/9 places, 8/8 transitions.
Stuttering acceptance computed with spot in 74 ms :[(NOT p0), (NOT p0), true, (NOT p0)]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-11 automaton TGBA [mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={} source=1 dest: 2}, { cond=p0, acceptance={} source=1 dest: 3}], [{ cond=true, acceptance={0} source=2 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=3 dest: 3}, { cond=p0, acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(LEQ s7 s2)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic], stateDesc=[null, null, null, null][false, false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-11 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-11 finished in 118 ms.
Running Spot : CommandLine [args=[/home/mcc/BenchKit/bin//..//ltl2tgba, --hoaf=tv, -f, !(X(G(!p0)))], workingDir=/home/mcc/execution]
Support contains 1 out of 9 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 9/9 places, 8/8 transitions.
Ensure Unique test removed 1 places
Iterating post reduction 0 with 1 rules applied. Total rules applied 1 place count 8 transition count 8
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 2 place count 7 transition count 7
Iterating global reduction 1 with 1 rules applied. Total rules applied 3 place count 7 transition count 7
Applied a total of 3 rules in 1 ms. Remains 7 /9 variables (removed 2) and now considering 7/8 (removed 1) transitions.
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:22:03] [INFO ] Implicit Places using invariants in 8 ms returned []
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:22:03] [INFO ] Implicit Places using invariants and state equation in 16 ms returned []
Implicit Place search using SMT with State Equation took 24 ms to find 0 implicit places.
// Phase 1: matrix 7 rows 7 cols
[2021-05-16 07:22:03] [INFO ] Computed 3 place invariants in 0 ms
[2021-05-16 07:22:03] [INFO ] Dead Transitions using invariants and state equation in 13 ms returned []
Finished structural reductions, in 1 iterations. Remains : 7/9 places, 7/8 transitions.
Stuttering acceptance computed with spot in 48 ms :[true, p0, p0]
Running random walk in product with property : SmallOperatingSystem-PT-MT0512DC0128-14 automaton TGBA [mat=[[{ cond=true, acceptance={0} source=0 dest: 0}], [{ cond=true, acceptance={} source=1 dest: 2}], [{ cond=p0, acceptance={} source=2 dest: 0}, { cond=(NOT p0), acceptance={} source=2 dest: 2}]], initial=1, aps=[p0:(GT 1 s4)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, complete, deterministic, no-univ-branch, unambiguous, semi-deterministic, terminal, very-weak, weak, inherently-weak], stateDesc=[null, null, null][false, false, false]]
Entered a terminal (fully accepting) state of product in 1 steps with 0 reset in 0 ms.
FORMULA SmallOperatingSystem-PT-MT0512DC0128-14 FALSE TECHNIQUES STUTTER_TEST
Treatment of property SmallOperatingSystem-PT-MT0512DC0128-14 finished in 92 ms.
All properties solved without resorting to model-checking.

BK_STOP 1621149724549

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination LTLCardinality -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="SmallOperatingSystem-PT-MT0512DC0128"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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 2-4028"
echo " Executing tool itstools"
echo " Input is SmallOperatingSystem-PT-MT0512DC0128, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r254-tall-162106745500076"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SmallOperatingSystem-PT-MT0512DC0128.tgz
mv SmallOperatingSystem-PT-MT0512DC0128 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;