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.r147-tall-162089138100357.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 Peterson-COL-4, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r147-tall-162089138100357
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 444K
-rw-r--r-- 1 mcc users 22K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 168K May 10 09:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 11K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 74K May 10 09:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K Mar 28 16:25 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Mar 28 16:25 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Mar 28 16:25 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Mar 28 16:25 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Mar 27 07:00 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 27 07:00 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 25 08:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14K Mar 25 08:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 22 09:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 22 09:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 5 16:51 equiv_pt
-rw-r--r-- 1 mcc users 2 May 5 16:51 instance
-rw-r--r-- 1 mcc users 5 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 44K May 5 16:51 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1620948548134

Running Version 0
[2021-05-13 23:29:09] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -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, 1800]
[2021-05-13 23:29:09] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-13 23:29:09] [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.
[2021-05-13 23:29:10] [WARNING] Using fallBack plugin, rng conformance not checked
[2021-05-13 23:29:10] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 579 ms
[2021-05-13 23:29:10] [INFO ] Imported 11 HL places and 14 HL transitions for a total of 500 PT places and 795.0 transition bindings in 18 ms.
[2021-05-13 23:29:10] [INFO ] Unfolded HLPN to a Petri net with 500 places and 730 transitions in 26 ms.
[2021-05-13 23:29:10] [INFO ] Unfolded HLPN properties in 0 ms.
[2021-05-13 23:29:10] [INFO ] Unfolded HLPN to a Petri net with 500 places and 730 transitions in 8 ms.
[2021-05-13 23:29:10] [INFO ] Unfolded HLPN properties in 1 ms.
Successfully produced net in file /tmp/petri1000_151743649595077924.dot
[2021-05-13 23:29:10] [INFO ] Initial state test concluded for 1 properties.
Deduced a syphon composed of 20 places in 6 ms
Reduce places removed 20 places and 40 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 75 ms. (steps per millisecond=133 ) properties (out of 13) seen :12
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2021-05-13 23:29:10] [INFO ] Flow matrix only has 630 transitions (discarded 60 similar events)
// Phase 1: matrix 630 rows 480 cols
[2021-05-13 23:29:10] [INFO ] Computed 19 place invariants in 13 ms
[2021-05-13 23:29:10] [INFO ] [Real]Absence check using 14 positive place invariants in 16 ms returned sat
[2021-05-13 23:29:10] [INFO ] [Real]Absence check using 14 positive and 5 generalized place invariants in 4 ms returned sat
[2021-05-13 23:29:10] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-13 23:29:10] [INFO ] [Real]Absence check using state equation in 190 ms returned sat
[2021-05-13 23:29:11] [INFO ] State equation strengthened by 132 read => feed constraints.
[2021-05-13 23:29:11] [INFO ] [Real]Added 132 Read/Feed constraints in 23 ms returned sat
[2021-05-13 23:29:11] [INFO ] Solution in real domain found non-integer solution.
[2021-05-13 23:29:11] [INFO ] [Nat]Absence check using 14 positive place invariants in 10 ms returned sat
[2021-05-13 23:29:11] [INFO ] [Nat]Absence check using 14 positive and 5 generalized place invariants in 5 ms returned sat
[2021-05-13 23:29:11] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-13 23:29:11] [INFO ] [Nat]Absence check using state equation in 196 ms returned sat
[2021-05-13 23:29:11] [INFO ] [Nat]Added 132 Read/Feed constraints in 27 ms returned sat
[2021-05-13 23:29:11] [INFO ] Deduced a trap composed of 14 places in 171 ms of which 4 ms to minimize.
[2021-05-13 23:29:11] [INFO ] Deduced a trap composed of 14 places in 139 ms of which 2 ms to minimize.
[2021-05-13 23:29:11] [INFO ] Deduced a trap composed of 58 places in 124 ms of which 2 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 43 places in 132 ms of which 2 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 25 places in 123 ms of which 0 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 54 places in 137 ms of which 1 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 41 places in 133 ms of which 0 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 18 places in 118 ms of which 1 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 79 places in 117 ms of which 1 ms to minimize.
[2021-05-13 23:29:12] [INFO ] Deduced a trap composed of 78 places in 117 ms of which 0 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 67 places in 87 ms of which 0 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 10 places in 120 ms of which 0 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 56 places in 108 ms of which 0 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 40 places in 102 ms of which 0 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 19 places in 130 ms of which 1 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 40 places in 120 ms of which 1 ms to minimize.
[2021-05-13 23:29:13] [INFO ] Deduced a trap composed of 105 places in 119 ms of which 1 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 86 places in 112 ms of which 1 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 17 places in 86 ms of which 0 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 76 places in 123 ms of which 0 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 93 places in 99 ms of which 0 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 130 places in 119 ms of which 1 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 47 places in 116 ms of which 1 ms to minimize.
[2021-05-13 23:29:14] [INFO ] Deduced a trap composed of 55 places in 112 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 115 places in 116 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 111 places in 115 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 72 places in 114 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 97 places in 113 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 116 places in 114 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 10 places in 115 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 35 places in 81 ms of which 0 ms to minimize.
[2021-05-13 23:29:15] [INFO ] Deduced a trap composed of 54 places in 103 ms of which 0 ms to minimize.
[2021-05-13 23:29:16] [INFO ] Deduced a trap composed of 69 places in 92 ms of which 0 ms to minimize.
[2021-05-13 23:29:16] [INFO ] Deduced a trap composed of 2 places in 179 ms of which 9 ms to minimize.
[2021-05-13 23:29:16] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close... while checking expression at index 0
Support contains 20 out of 480 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 480/480 places, 690/690 transitions.
Drop transitions removed 192 transitions
Trivial Post-agglo rules discarded 192 transitions
Performed 192 trivial Post agglomeration. Transition count delta: 192
Iterating post reduction 0 with 192 rules applied. Total rules applied 192 place count 480 transition count 498
Reduce places removed 192 places and 0 transitions.
Iterating post reduction 1 with 192 rules applied. Total rules applied 384 place count 288 transition count 498
Performed 104 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 104 Pre rules applied. Total rules applied 384 place count 288 transition count 394
Deduced a syphon composed of 104 places in 1 ms
Reduce places removed 104 places and 0 transitions.
Iterating global reduction 2 with 208 rules applied. Total rules applied 592 place count 184 transition count 394
Applied a total of 592 rules in 54 ms. Remains 184 /480 variables (removed 296) and now considering 394/690 (removed 296) transitions.
Finished structural reductions, in 1 iterations. Remains : 184/480 places, 394/690 transitions.
[2021-05-13 23:29:16] [INFO ] Flatten gal took : 59 ms
[2021-05-13 23:29:16] [INFO ] Flatten gal took : 29 ms
[2021-05-13 23:29:16] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16666895508927646343.gal : 12 ms
[2021-05-13 23:29:16] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality5894950979493522364.prop : 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-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality16666895508927646343.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality5894950979493522364.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality16666895508927646343.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality5894950979493522364.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality5894950979493522364.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :3 after 4
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :4 after 15
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :15 after 21
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :21 after 33
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :33 after 40
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :40 after 231
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :231 after 492
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :492 after 1438
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1438 after 4062
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :4062 after 8879
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :8879 after 12658
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :12658 after 113330
SDD proceeding with computation,1 properties remain. new max is 32768
SDD size :113330 after 193428
SDD proceeding with computation,1 properties remain. new max is 65536
SDD size :193428 after 325660
Detected timeout of ITS tools.
[2021-05-13 23:29:31] [INFO ] Flatten gal took : 25 ms
[2021-05-13 23:29:31] [INFO ] Applying decomposition
[2021-05-13 23:29:31] [INFO ] Flatten gal took : 23 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/graph9477729503630807116.txt, -o, /tmp/graph9477729503630807116.bin, -w, /tmp/graph9477729503630807116.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/graph9477729503630807116.bin, -l, -1, -v, -w, /tmp/graph9477729503630807116.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-13 23:29:31] [INFO ] Decomposing Gal with order
[2021-05-13 23:29:31] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-13 23:29:31] [INFO ] Removed a total of 410 redundant transitions.
[2021-05-13 23:29:31] [INFO ] Flatten gal took : 91 ms
[2021-05-13 23:29:31] [INFO ] Fuse similar labels procedure discarded/fused a total of 221 labels/synchronizations in 37 ms.
[2021-05-13 23:29:31] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14708794341248174695.gal : 34 ms
[2021-05-13 23:29:31] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7442256882326816992.prop : 1 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-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality14708794341248174695.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality7442256882326816992.prop, --nowitness], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality14708794341248174695.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality7442256882326816992.prop --nowitness
Loading property file /tmp/ReachabilityCardinality7442256882326816992.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 4
Reachability property qltransition_13 is true.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 5 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst\_mod\_flat,94,0.062066,7116,198,54,482,247,792,934,181,310,0
Total reachable state count : 94

Verifying 1 reachability properties.
Reachability property qltransition_13 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
qltransition\_13,1,0.063418,7116,47,36,482,247,877,934,183,310,0
Able to resolve query QuasiLiveness after proving 14 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL INITIAL_STATE USE_NUPN

BK_STOP 1620948573036

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 QuasiLiveness -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 1800 -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="Peterson-COL-4"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
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 2-4028"
echo " Executing tool itstools"
echo " Input is Peterson-COL-4, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r147-tall-162089138100357"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Peterson-COL-4.tgz
mv Peterson-COL-4 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;