fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r213-smll-152732263800054
Last Updated
June 26, 2018

About the Execution of ITS-Tools.L for ClientsAndServers-PT-N5000P0

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15751.940 93550.00 95842.00 751.60 [undef] Cannot compute

Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
..................
/home/mcc/execution
total 168K
-rw-r--r-- 1 mcc users 3.4K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 12K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:49 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K May 15 18:49 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.4K May 26 09:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 9.8K May 26 09:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 26 09:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.0K May 26 09:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 119 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 357 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.1K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:49 equiv_col
-rw-r--r-- 1 mcc users 8 May 15 18:49 instance
-rw-r--r-- 1 mcc users 6 May 15 18:49 iscolored
-rw-r--r-- 1 mcc users 9.2K May 15 18:49 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is ClientsAndServers-PT-N5000P0, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r213-smll-152732263800054
=====================================================================


--------------------
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 ClientsAndServers-PT-N5000P0-LTLFireability-00
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-01
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-02
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-03
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-04
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-05
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-06
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-07
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-08
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-09
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-10
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-11
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-12
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-13
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-14
FORMULA_NAME ClientsAndServers-PT-N5000P0-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1527815160427

Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.201805241334/bin/convert-linux64, -i, /tmp/graph2034160134094666067.txt, -o, /tmp/graph2034160134094666067.bin, -w, /tmp/graph2034160134094666067.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.201805241334/bin/louvain-linux64, /tmp/graph2034160134094666067.bin, -l, -1, -v, -w, /tmp/graph2034160134094666067.weights, -q, 0, -e, 0.001], workingDir=null]
Using solver Z3 to compute partial order matrices.
Built C files in :
/home/mcc/execution
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805241334/bin/its-ltl-linux64, --gc-threshold, 2000000, -i, /home/mcc/execution/LTLFireability.pnml.gal, -t, CGAL, -LTL, /home/mcc/execution/LTLFireability.ltl, -c, -stutter-deadlock], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805241334/bin/its-ltl-linux64 --gc-threshold 2000000 -i /home/mcc/execution/LTLFireability.pnml.gal -t CGAL -LTL /home/mcc/execution/LTLFireability.ltl -c -stutter-deadlock
Read 16 LTL properties
Checking formula 0 : !((X(F(F(("(i2.u6.StR>=1)")U("(i0.u5.MtF>=1)"))))))
Formula 0 simplified : !XF("(i2.u6.StR>=1)" U "(i0.u5.MtF>=1)")
built 10 ordering constraints for composite.
built 8 ordering constraints for composite.
built 5 ordering constraints for composite.
terminate called after throwing an instance of 'char const*'
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 18 rows 25 cols
invariant :i0:u0:Uf + -1'i0:u4:SR + -1'i0:u4:MwU + i0:u5:MtF + -1'i1:u8:Ci + -1'i2:u6:CR + -1'i2:u6:StR + i3:u2:SF + -1'i3:u2:SwA + -1'i3:u7:CA + -1'i3:u7:SpA = -20000
invariant :i0:u0:SG + i0:u4:SR + -1'i0:u5:Mi + -1'i2:u6:SwG + i3:u2:SF + -1'i3:u2:SwA + i3:u7:SA = -15000
invariant :i1:u1:CF + -1'i1:u8:CwA + i3:u2:StF + i3:u2:SwA + i3:u7:CA + i3:u7:SpA = 0
invariant :i0:u5:MpA + i0:u5:MtF + i3:u2:SF + -1'i3:u2:SwA + i3:u7:SA = 0
invariant :i1:u1:CwG + -1'i2:u3:CG + -1'i2:u3:SpG + -1'i2:u6:CR + -1'i2:u6:StR + -1'i2:u6:SwG = 0
invariant :i2:u3:Si + i2:u3:SpG + i2:u6:StR + i2:u6:SwG + i3:u2:StF + i3:u2:SwA + i3:u7:SpA = 10000
invariant :i0:u0:MpG + i0:u4:MwU + i0:u5:Mi + -1'i3:u2:SF + i3:u2:SwA + -1'i3:u7:SA = 15000
invariant :i1:u1:Cb + i1:u8:CwA + i1:u8:Ci + i2:u3:CG + i2:u3:SpG + i2:u6:CR + i2:u6:StR + i2:u6:SwG = 40000
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit//lts_install_dir//include, -I., -std=c99, -fPIC, -O3, model.c], workingDir=/home/mcc/execution]
Compilation finished in 957 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/home/mcc/execution]
Link finished in 40 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, X(<>(<>(((LTLAP0==true))U((LTLAP1==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Unexpected exception when executing ltsmin :CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, X(<>(<>(((LTLAP0==true))U((LTLAP1==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
255

BK_STOP 1527815253977

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -louvain -smt
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -consoleLog -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination LTLFireability -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -louvain -smt -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss8m -Xms40m -Xmx8192m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -louvain, -smt]
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 33 ms
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 25 places.
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 18 transitions.
Jun 01, 2018 1:06:02 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 7 ms
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 26 ms
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 11 ms
Begin: Fri Jun 1 01:06:02 2018

Computation of communities with the Newman-Girvan Modularity quality function

level 0:
start computation: Fri Jun 1 01:06:02 2018
network size: 25 nodes, 72 links, 36 weight
quality increased from -0.0443673 to 0.356096
end computation: Fri Jun 1 01:06:02 2018
level 1:
start computation: Fri Jun 1 01:06:02 2018
network size: 9 nodes, 41 links, 36 weight
quality increased from 0.356096 to 0.46142
end computation: Fri Jun 1 01:06:02 2018
level 2:
start computation: Fri Jun 1 01:06:02 2018
network size: 4 nodes, 14 links, 36 weight
quality increased from 0.46142 to 0.46142
end computation: Fri Jun 1 01:06:02 2018
End: Fri Jun 1 01:06:02 2018
Total duration: 0 sec
0.46142
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 9 ms
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
Jun 01, 2018 1:06:02 AM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 1 redundant transitions.
Jun 01, 2018 1:06:03 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/LTLFireability.pnml.gal : 3 ms
Jun 01, 2018 1:06:03 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSLTLTools
INFO: Time to serialize properties into /home/mcc/execution/LTLFireability.ltl : 2 ms
ITS-tools command line returned an error code 134
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 18 transitions.
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 8 place invariants in 12 ms
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver init
INFO: Proved 25 variables to be positive in 98 ms
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may disable matrix : 18 transitions.
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of disable matrix completed :0/18 took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Complete disable matrix. took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may enable matrix : 18 transitions.
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Complete enable matrix. took 0 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Jun 01, 2018 1:06:03 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeCoEnablingMatrix
INFO: Computing symmetric co enabling matrix : 18 transitions.
Jun 01, 2018 1:06:04 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Finished co-enabling matrix. took 354 ms. Total solver calls (SAT/UNSAT): 95(95/0)
Jun 01, 2018 1:06:04 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeDoNotAccord
INFO: Computing Do-Not-Accords matrix : 18 transitions.
Jun 01, 2018 1:06:04 AM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Completed DNA matrix. took 291 ms. Total solver calls (SAT/UNSAT): 33(0/33)
Jun 01, 2018 1:06:04 AM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Built C files in 1266ms conformant to PINS in folder :/home/mcc/execution
pins2lts-mc, 0.000: Registering PINS so language module
pins2lts-mc, 0.001: Loading model from ./gal.so
pins2lts-mc, 0.001: library has no initializer
pins2lts-mc, 0.001: loading model GAL
pins2lts-mc, 0.001: completed loading model GAL
pins2lts-mc, 0.001: LTL layer: formula: X(<>(<>(((LTLAP0==true))U((LTLAP1==true)))))
pins2lts-mc, 0.001: "X(<>(<>(((LTLAP0==true))U((LTLAP1==true)))))" is not a file, parsing as formula...
pins2lts-mc, 0.001: Using Spin LTL semantics
pins2lts-mc, 0.016: buchi has 2 states
pins2lts-mc, 0.016: Weak Buchi automaton detected, adding non-accepting as progress label.
pins2lts-mc, 0.019: DFS-FIFO for weak LTL, using special progress label 33
pins2lts-mc, 0.019: There are 34 state labels and 1 edge labels
pins2lts-mc, 0.019: State length is 26, there are 20 groups
pins2lts-mc, 0.019: Running dfsfifo using 1 core (sequential)
pins2lts-mc, 0.019: Using a tree table with 2^27 elements
pins2lts-mc, 0.019: Successor permutation: rr
pins2lts-mc, 0.019: Global bits: 2, count bits: 0, local bits: 0
pins2lts-mc, 0.102: 927 levels 1000 states 9313 transitions
pins2lts-mc, 0.182: 1854 levels 2000 states 20283 transitions
pins2lts-mc, 0.306: 3702 levels 4000 states 42235 transitions
pins2lts-mc, 0.490: 7401 levels 8000 states 87111 transitions
pins2lts-mc, 0.781: 14817 levels 16000 states 180333 transitions
pins2lts-mc, 1.234: 29596 levels 32000 states 367642 transitions
pins2lts-mc, 1.907: 59298 levels 64000 states 744208 transitions
pins2lts-mc, 3.007: 118668 levels 128000 states 1503061 transitions
pins2lts-mc, 3.509: 152225 levels 256000 states 1706585 transitions
pins2lts-mc, 4.537: 152225 levels 512000 states 2102146 transitions
pins2lts-mc, 6.875: 152225 levels 1024000 states 3038249 transitions
pins2lts-mc, 11.666: 152225 levels 2048000 states 5020072 transitions
pins2lts-mc, 20.979: 152297 levels 4096000 states 8752954 transitions
pins2lts-mc, 38.019: 152513 levels 8192000 states 15136565 transitions
pins2lts-mc, 83.467: 153008 levels 16384000 states 27979805 transitions
pins2lts-mc, 86.996: Error: tree leafs table full! Change -s/--ratio.
pins2lts-mc, 86.997:
pins2lts-mc, 86.997:
pins2lts-mc, 86.997: Explored 16406227 states 27995473 transitions, fanout: 1.706
pins2lts-mc, 86.997: Total exploration time 86.980 sec (86.980 sec minimum, 86.980 sec on average)
pins2lts-mc, 86.997: States per second: 188621, Transitions per second: 321861
pins2lts-mc, 86.997:
pins2lts-mc, 86.997: Progress states detected: 0
pins2lts-mc, 86.997: Redundant explorations: -7.9564
pins2lts-mc, 86.997:
pins2lts-mc, 86.997: Queue width: 8B, total height: 153009, memory: 1.17MB
pins2lts-mc, 86.997: Tree memory: 392.0MB, 23.1 B/state, compr.: 21.8%
pins2lts-mc, 86.997: Tree fill ratio (roots/leafs): 13.0%/99.0%
pins2lts-mc, 86.997: Stored 18 string chucks using 0MB
pins2lts-mc, 86.997: Total memory used for chunk indexing: 0MB
pins2lts-mc, 86.997: Est. total memory use: 393.2MB (~1025.2MB paged-in)
java.lang.RuntimeException: Unexpected exception when executing ltsmin :CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, X(<>(<>(((LTLAP0==true))U((LTLAP1==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
255
at fr.lip6.move.gal.application.LTSminRunner.checkProperty(LTSminRunner.java:167)
at fr.lip6.move.gal.application.LTSminRunner.access$9(LTSminRunner.java:122)
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:91)
at java.lang.Thread.run(Thread.java:748)

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="ClientsAndServers-PT-N5000P0"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstoolsl"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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

tar xzf /home/mcc/BenchKit/INPUTS/ClientsAndServers-PT-N5000P0.tgz
mv ClientsAndServers-PT-N5000P0 execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool itstoolsl"
echo " Input is ClientsAndServers-PT-N5000P0, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r213-smll-152732263800054"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
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 ;