fond
Model Checking Contest 2019
9th edition, Prague, Czech Republic, April 7, 2019 (TOOLympics)
Execution of r107-oct2-155272230100066
Last Updated
Apr 15, 2019

About the Execution of ITS-Tools for NQueens-PT-30

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15902.610 2297294.00 9095168.00 143.10 [undef] Cannot compute

Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2019-input.r107-oct2-155272230100066.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2019-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................
=====================================================================
Generated by BenchKit 2-3954
Executing tool itstools
Input is NQueens-PT-30, examination is GlobalProperties
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r107-oct2-155272230100066
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 896K
-rw-r--r-- 1 mcc users 3.1K Feb 11 23:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 17K Feb 11 23:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 7 23:57 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 7 23:57 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 100 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 338 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.2K Feb 5 00:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 8.9K Feb 5 00:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 4 22:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.7K Feb 4 22:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.3K Feb 4 06:33 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Feb 4 06:33 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.6K Feb 1 00:08 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 21K Feb 1 00:08 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 4 22:21 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 4 22:21 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 equiv_col

-rw-r--r-- 1 mcc users 3 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 735K Mar 10 17:31 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 NQueens-PT-30-GlobalProperties-0

=== Now, execution of the tool begins

BK_START 1552910859798

Working with output stream class java.io.PrintStream
Flatten gal took : 342 ms
Constant places removed 900 places and 0 transitions.
Iterating post reduction 0 with 900 rules applied. Total rules applied 900 place count 178 transition count 900
Applied a total of 900 rules in 26 ms. Remains 178 /1078 variables (removed 900) and now considering 900/900 (removed 0) transitions.
// Phase 1: matrix 900 rows 178 cols
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_1.0.0.201903111103/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/GlobalProperties.pnml.gal, -t, CGAL, -ctl, DEADLOCK], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903111103/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/GlobalProperties.pnml.gal -t CGAL -ctl DEADLOCK
No direction supplied, using forward translation only.
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 900 rows 178 cols
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit//lts_install_dir//include, -I., -std=c99, -fPIC, -O2, model.c], workingDir=/home/mcc/execution]
Compilation finished in 9547 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/home/mcc/execution]
Link finished in 70 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=8, -p, --pins-guards, --when, -d], workingDir=/home/mcc/execution]
sparsehash FATAL ERROR: failed to allocate 32 groups
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=8, -p, --pins-guards, --when, -d], workingDir=/home/mcc/execution]
255

BK_STOP 1552913157092

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ GlobalProperties = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution GlobalProperties -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination GlobalProperties -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss8m -Xms40m -Xmx8192m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
Mar 18, 2019 12:07:41 PM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, GlobalProperties, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -smt]
Mar 18, 2019 12:07:41 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Mar 18, 2019 12:07:41 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 288 ms
Mar 18, 2019 12:07:41 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 1080 places.
Mar 18, 2019 12:07:41 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 900 transitions.
Mar 18, 2019 12:07:42 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 42 ms
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.DomainAnalyzer computeVariableDomains
INFO: Found a total of 2 fixed domain variables (out of 1080 variables) in GAL type NQueens_PT_30
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: Found a total of 2 constant array cells/variables (out of 1080 variables) in type NQueens_PT_30
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: L_59,R_0,
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.DomainAnalyzer computeVariableDomains
INFO: Found a total of 2 fixed domain variables (out of 1080 variables) in GAL type NQueens_PT_30
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: Found a total of 2 constant array cells/variables (out of 1080 variables) in type NQueens_PT_30
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: L_59,R_0,
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.Simplifier simplifyConstantVariables
INFO: Removed 2 constant variables :L_59=1, R_0=1
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.PropertySimplifier evalInInitialState
WARNING: Unexpected boolean logic operator in evalInInitialState fr.lip6.move.gal.impl.EXImpl
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.PropertySimplifier rewriteWithInitialState
INFO: Reachable property NQueens-PT-30-GlobalProperties-0 is trivially true : it is verified in initial state.
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 340 ms
Mar 18, 2019 12:07:42 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.simple.gal : 12 ms
Mar 18, 2019 12:07:42 PM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 900 transitions.
Mar 18, 2019 12:07:43 PM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 900 transitions.
Mar 18, 2019 12:07:43 PM fr.lip6.move.gal.instantiate.PropertySimplifier rewriteWithInitialState
INFO: Reachable property NQueens-PT-30-GlobalProperties-0 is trivially true : it is verified in initial state.
Mar 18, 2019 12:07:43 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 282 ms
Mar 18, 2019 12:07:43 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/GlobalProperties.pnml.gal : 7 ms
Mar 18, 2019 12:07:43 PM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 0 place invariants in 28 ms
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver init
INFO: Proved 178 variables to be positive in 756 ms
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may disable matrix : 900 transitions.
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of disable matrix completed :0/900 took 1 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Complete disable matrix. took 118 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeAblingMatrix
INFO: Computing symmetric may enable matrix : 900 transitions.
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Complete enable matrix. took 34 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Mar 18, 2019 12:07:44 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeCoEnablingMatrix
INFO: Computing symmetric co enabling matrix : 900 transitions.
Mar 18, 2019 12:07:47 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(72/900) took 3007 ms. Total solver calls (SAT/UNSAT): 5708(5708/0)
Mar 18, 2019 12:07:50 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(159/900) took 6017 ms. Total solver calls (SAT/UNSAT): 11725(11725/0)
Mar 18, 2019 12:07:53 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(256/900) took 9022 ms. Total solver calls (SAT/UNSAT): 17783(17783/0)
Mar 18, 2019 12:07:56 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(356/900) took 12049 ms. Total solver calls (SAT/UNSAT): 23506(23506/0)
Mar 18, 2019 12:07:59 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(468/900) took 15070 ms. Total solver calls (SAT/UNSAT): 29329(29329/0)
Mar 18, 2019 12:08:02 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(592/900) took 18076 ms. Total solver calls (SAT/UNSAT): 35022(35022/0)
Mar 18, 2019 12:08:05 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of co-enabling matrix(734/900) took 21085 ms. Total solver calls (SAT/UNSAT): 40063(40063/0)
Mar 18, 2019 12:08:08 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Finished co-enabling matrix. took 23639 ms. Total solver calls (SAT/UNSAT): 43210(43210/0)
Mar 18, 2019 12:08:08 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver computeDoNotAccord
INFO: Computing Do-Not-Accords matrix : 900 transitions.
Mar 18, 2019 12:08:08 PM fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver printStats
INFO: Computation of Completed DNA matrix. took 73 ms. Total solver calls (SAT/UNSAT): 0(0/0)
Mar 18, 2019 12:08:08 PM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Built C files in 25674ms conformant to PINS in folder :/home/mcc/execution
ITS-tools command line returned an error code 1
pins2lts-mc, 0.000: Registering PINS so language module
pins2lts-mc( 0/ 8), 0.025: Loading model from ./gal.so
pins2lts-mc( 4/ 8), 0.025: library has no initializer
pins2lts-mc( 2/ 8), 0.026: library has no initializer
pins2lts-mc( 2/ 8), 0.026: loading model GAL
pins2lts-mc( 3/ 8), 0.025: library has no initializer
pins2lts-mc( 3/ 8), 0.025: loading model GAL
pins2lts-mc( 5/ 8), 0.025: library has no initializer
pins2lts-mc( 5/ 8), 0.025: loading model GAL
pins2lts-mc( 0/ 8), 0.025: library has no initializer
pins2lts-mc( 0/ 8), 0.026: loading model GAL
pins2lts-mc( 7/ 8), 0.000: library has no initializer
pins2lts-mc( 7/ 8), 0.001: loading model GAL
pins2lts-mc( 6/ 8), 0.025: library has no initializer
pins2lts-mc( 4/ 8), 0.025: loading model GAL
pins2lts-mc( 6/ 8), 0.041: loading model GAL
pins2lts-mc( 1/ 8), 0.026: library has no initializer
pins2lts-mc( 1/ 8), 0.054: loading model GAL
pins2lts-mc( 5/ 8), 1.047: completed loading model GAL
pins2lts-mc( 6/ 8), 1.355: completed loading model GAL
pins2lts-mc( 2/ 8), 1.566: completed loading model GAL
pins2lts-mc( 1/ 8), 1.582: completed loading model GAL
pins2lts-mc( 3/ 8), 1.878: completed loading model GAL
pins2lts-mc( 4/ 8), 2.027: completed loading model GAL
pins2lts-mc( 7/ 8), 2.044: completed loading model GAL
pins2lts-mc( 0/ 8), 3.014: completed loading model GAL
pins2lts-mc( 0/ 8), 3.139: Initializing POR dependencies: labels 901, guards 900
pins2lts-mc( 0/ 8), 6.561: There are 901 state labels and 1 edge labels
pins2lts-mc( 0/ 8), 6.562: State length is 178, there are 900 groups
pins2lts-mc( 0/ 8), 6.562: Running bfs using 8 cores
pins2lts-mc( 0/ 8), 6.562: Using a non-indexing tree table with 2^27 elements
pins2lts-mc( 0/ 8), 6.562: Successor permutation: none
pins2lts-mc( 0/ 8), 6.562: Visible groups: 0 / 900, labels: 0 / 901
pins2lts-mc( 0/ 8), 6.562: POR cycle proviso: none
pins2lts-mc( 0/ 8), 6.562: Global bits: 0, count bits: 0, local bits: 0
pins2lts-mc( 0/ 8), 79.463: ~3 levels ~960 states ~773224 transitions
pins2lts-mc( 0/ 8), 132.297: ~3 levels ~1920 states ~1469072 transitions
pins2lts-mc( 4/ 8), 209.127: ~1 levels ~3840 states ~2775312 transitions
pins2lts-mc( 4/ 8), 340.834: ~1 levels ~7680 states ~5468264 transitions
pins2lts-mc( 0/ 8), 620.216: ~3 levels ~15360 states ~11151392 transitions
pins2lts-mc( 0/ 8), 1178.135: ~3 levels ~30720 states ~22208032 transitions
pins2lts-mc( 4/ 8), 2246.206: Error: tree leafs table full! Change -s/--ratio.
pins2lts-mc( 0/ 8), 2257.336:
pins2lts-mc( 0/ 8), 2257.346: mean standard work distribution: 1.4% (states) 1.3% (transitions)
pins2lts-mc( 0/ 8), 2257.357:
pins2lts-mc( 0/ 8), 2257.357: Explored 53370 states 38265321 transitions, fanout: 716.982
pins2lts-mc( 0/ 8), 2257.357: Total exploration time 2250.760 sec (2241.110 sec minimum, 2246.009 sec on average)
pins2lts-mc( 0/ 8), 2257.357: States per second: 24, Transitions per second: 17001
pins2lts-mc( 0/ 8), 2257.357:
pins2lts-mc( 0/ 8), 2257.357: Queue width: 8B, total height: 27673702, memory: 211.13MB
pins2lts-mc( 0/ 8), 2257.357: Tree memory: 467.6MB, 17.7 B/state, compr.: 2.5%
pins2lts-mc( 0/ 8), 2257.357: Tree fill ratio (roots/leafs): 20.0%/100.0%
pins2lts-mc( 0/ 8), 2257.357: Stored 907 string chucks using 0MB
pins2lts-mc( 0/ 8), 2257.360: Total memory used for chunk indexing: 0MB
pins2lts-mc( 0/ 8), 2257.360: Est. total memory use: 678.7MB (~1235.1MB paged-in)
java.lang.RuntimeException: Unexpected exception when executing ltsmin :CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=8, -p, --pins-guards, --when, -d], 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="NQueens-PT-30"
export BK_EXAMINATION="GlobalProperties"
export BK_TOOL="itstools"
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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3954"
echo " Executing tool itstools"
echo " Input is NQueens-PT-30, examination is GlobalProperties"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r107-oct2-155272230100066"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/NQueens-PT-30.tgz
mv NQueens-PT-30 execution
cd execution
if [ "GlobalProperties" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "GlobalProperties" = "UpperBounds" ] ; 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 [ "GlobalProperties" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "GlobalProperties" != "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 "GlobalProperties.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property GlobalProperties.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "GlobalProperties.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 '' GlobalProperties.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 ;