Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2022-input.r198-tajo-165281579300091.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2022-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2021
Input is RERS17pb115-PT-1, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r198-tajo-165281579300091
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 70M
-rw-r--r-- 1 mcc users 7.6K Apr 30 06:33 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K Apr 30 06:33 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Apr 30 06:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Apr 30 06:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K May 9 08:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 9 08:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K May 9 08:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 9 08:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 9 08:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 9 08:33 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 2 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 69M May 10 09:34 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME ReachabilityDeadlock

=== Now, execution of the tool begins

BK_START 1653292104219

Running Version 0
[2022-05-23 07:48:26] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -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]
[2022-05-23 07:48:26] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-23 07:48:28] [INFO ] Load time of PNML (sax parser for PT used): 2732 ms
[2022-05-23 07:48:29] [INFO ] Transformed 1399 places.
[2022-05-23 07:48:29] [INFO ] Transformed 144369 transitions.
[2022-05-23 07:48:29] [INFO ] Found NUPN structural information;
[2022-05-23 07:48:29] [INFO ] Parsed PT model containing 1399 places and 144369 transitions in 3382 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 4 ms.
Working with output stream class java.io.PrintStream
Built sparse matrix representations for Structural reductions in 100 ms.316378KB memory used
Starting structural reductions, iteration 0 : 1399/1399 places, 144369/144369 transitions.
Ensure Unique test removed 18 places
Iterating post reduction 0 with 18 rules applied. Total rules applied 18 place count 1381 transition count 144369
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 19 place count 1380 transition count 144368
Applied a total of 19 rules in 5406 ms. Remains 1380 /1399 variables (removed 19) and now considering 144368/144369 (removed 1) transitions.
Finished structural reductions, in 1 iterations. Remains : 1380/1399 places, 144368/144369 transitions.
Interrupted Random walk after 192980 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=6 )
[2022-05-23 07:49:06] [INFO ] Flow matrix only has 81237 transitions (discarded 63131 similar events)
// Phase 1: matrix 81237 rows 1380 cols
[2022-05-23 07:49:07] [INFO ] Computed 19 place invariants in 593 ms
[2022-05-23 07:49:34] [INFO ] [Real]Absence check using 19 positive place invariants in 206 ms returned sat
[2022-05-23 07:49:34] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-23 07:49:52] [INFO ] [Real]Absence check using state equation in 17995 ms returned sat
[2022-05-23 07:49:54] [INFO ] Solution in real domain found non-integer solution.
[2022-05-23 07:50:21] [INFO ] [Nat]Absence check using 19 positive place invariants in 47 ms returned sat
[2022-05-23 07:50:21] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-23 07:50:39] [INFO ] [Nat]Absence check using state equation in 18307 ms returned sat
[2022-05-23 07:50:43] [INFO ] State equation strengthened by 2245 read => feed constraints.
[2022-05-23 07:51:24] [INFO ] SMT solver returned unknown. Retrying;
[2022-05-23 07:51:27] [INFO ] [Nat]Added 2245 Read/Feed constraints in 43664 ms returned unknown
Interrupted Random directed walk after 145743 steps, including 0 resets, run timeout after 30003 ms. (steps per millisecond=4 )
Interrupted Random walk after 255415 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=8 )
Interrupted Random directed walk after 145503 steps, including 0 resets, run timeout after 30002 ms. (steps per millisecond=4 )
Interrupted Random walk after 268556 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=8 )
Starting structural reductions, iteration 0 : 1380/1380 places, 144368/144368 transitions.
Applied a total of 0 rules in 1956 ms. Remains 1380 /1380 variables (removed 0) and now considering 144368/144368 (removed 0) transitions.
[2022-05-23 07:53:29] [INFO ] Flow matrix only has 81237 transitions (discarded 63131 similar events)
// Phase 1: matrix 81237 rows 1380 cols
[2022-05-23 07:53:29] [INFO ] Computed 19 place invariants in 323 ms
[2022-05-23 07:53:37] [INFO ] Implicit Places using invariants in 7740 ms returned []
Implicit Place search using SMT only with invariants took 7742 ms to find 0 implicit places.
[2022-05-23 07:53:37] [INFO ] Flow matrix only has 81237 transitions (discarded 63131 similar events)
// Phase 1: matrix 81237 rows 1380 cols
[2022-05-23 07:53:37] [INFO ] Computed 19 place invariants in 244 ms
[2022-05-23 07:54:07] [INFO ] Performed 88552/144368 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2022-05-23 07:54:27] [INFO ] Dead Transitions using invariants and state equation in 50387 ms returned []
Finished structural reductions, in 1 iterations. Remains : 1380/1380 places, 144368/144368 transitions.
Interrupted Random walk after 181572 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=6 )
[2022-05-23 07:54:58] [INFO ] Flow matrix only has 81237 transitions (discarded 63131 similar events)
// Phase 1: matrix 81237 rows 1380 cols
[2022-05-23 07:54:58] [INFO ] Computed 19 place invariants in 356 ms
[2022-05-23 07:55:24] [INFO ] [Real]Absence check using 19 positive place invariants in 196 ms returned sat
[2022-05-23 07:55:24] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-23 07:55:41] [INFO ] [Real]Absence check using state equation in 17023 ms returned sat
[2022-05-23 07:55:42] [INFO ] Solution in real domain found non-integer solution.
[2022-05-23 07:56:10] [INFO ] [Nat]Absence check using 19 positive place invariants in 53 ms returned sat
[2022-05-23 07:56:10] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-23 07:56:28] [INFO ] [Nat]Absence check using state equation in 18692 ms returned sat
[2022-05-23 07:56:33] [INFO ] State equation strengthened by 2245 read => feed constraints.
[2022-05-23 07:57:10] [INFO ] SMT solver returned unknown. Retrying;
[2022-05-23 07:57:13] [INFO ] [Nat]Added 2245 Read/Feed constraints in 40699 ms returned unknown
Interrupted Random directed walk after 133925 steps, including 0 resets, run timeout after 30002 ms. (steps per millisecond=4 )
Interrupted Random walk after 213550 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=7 )
Interrupted Random directed walk after 132974 steps, including 0 resets, run timeout after 30002 ms. (steps per millisecond=4 )
Interrupted Random walk after 251912 steps, including 0 resets, run timeout after 30001 ms. (steps per millisecond=8 )
[2022-05-23 07:59:19] [INFO ] Flatten gal took : 4375 ms
Using solver Z3 to compute partial order matrices.
Built C files in :
/tmp/ltsmin8170429261978554951
[2022-05-23 07:59:23] [INFO ] Too many transitions (144369) to apply POR reductions. Disabling POR matrices.
[2022-05-23 07:59:24] [INFO ] Built C files in 1852ms conformant to PINS (ltsmin variant)in folder :/tmp/ltsmin8170429261978554951
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/ltsmin8170429261978554951]
[2022-05-23 07:59:26] [INFO ] Applying decomposition
[2022-05-23 07:59:31] [INFO ] Flatten gal took : 4698 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/graph8016967210013314746.txt, -o, /tmp/graph8016967210013314746.bin, -w, /tmp/graph8016967210013314746.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/graph8016967210013314746.bin, -l, -1, -v, -w, /tmp/graph8016967210013314746.weights, -q, 0, -e, 0.001], workingDir=null]
[2022-05-23 07:59:40] [INFO ] Decomposing Gal with order
[2022-05-23 07:59:40] [INFO ] Rewriting arrays to variables to allow decomposition.
[2022-05-23 07:59:52] [INFO ] Removed a total of 435221 redundant transitions.
[2022-05-23 07:59:54] [INFO ] Flatten gal took : 7665 ms
[2022-05-23 08:00:17] [INFO ] Fuse similar labels procedure discarded/fused a total of 2180 labels/synchronizations in 18782 ms.
[2022-05-23 08:00:17] [INFO ] Time to serialize gal into /tmp/ReachabilityDeadlock17991026794884007240.gal : 393 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-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityDeadlock17991026794884007240.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_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityDeadlock17991026794884007240.gal -t CGAL -ctl DEADLOCK
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running 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/ltsmin8170429261978554951] killed by timeout after 180 SECONDS
java.lang.RuntimeException: Compilation or link of executable timed out.java.util.concurrent.TimeoutException: Subprocess running 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/ltsmin8170429261978554951] killed by timeout after 180 SECONDS
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:79)
at java.base/java.lang.Thread.run(Thread.java:834)
No direction supplied, using forward translation only.
ITS-tools command line returned an error code 137
[2022-05-23 08:06:58] [INFO ] Applying decomposition
[2022-05-23 08:07:07] [INFO ] Flatten gal took : 8343 ms
[2022-05-23 08:07:10] [INFO ] Decomposing Gal with order
[2022-05-23 08:07:10] [INFO ] Rewriting arrays to variables to allow decomposition.
[2022-05-23 08:08:37] [INFO ] Removed a total of 281491 redundant transitions.
[2022-05-23 08:08:40] [INFO ] Flatten gal took : 83610 ms
[2022-05-23 08:09:26] [INFO ] Fuse similar labels procedure discarded/fused a total of 7033 labels/synchronizations in 44576 ms.
[2022-05-23 08:09:26] [INFO ] Time to serialize gal into /tmp/ReachabilityDeadlock6847568084434737274.gal : 63 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-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityDeadlock6847568084434737274.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_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityDeadlock6847568084434737274.gal -t CGAL -ctl DEADLOCK
No direction supplied, using forward translation only.
ITS-tools command line returned an error code 137
[2022-05-23 08:12:01] [INFO ] Flatten gal took : 6237 ms
[2022-05-23 08:12:11] [INFO ] Input system was already deterministic with 144369 transitions.
[2022-05-23 08:12:12] [INFO ] Transformed 1399 places.
[2022-05-23 08:12:13] [INFO ] Transformed 144369 transitions.
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit/bin//..//greatspn//bin/pinvar, /home/mcc/execution/gspn], workingDir=/home/mcc/execution]
P-invariant computation with GreatSPN timed out. Skipping.
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit/bin//..//greatspn//bin/RGMEDD2, /home/mcc/execution/gspn, -META, -varord-only], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
java.lang.NullPointerException
at fr.lip6.move.gal.application.Application.computeOrderWithGreatSPN(Application.java:889)
at fr.lip6.move.gal.application.Application.runMultiITS(Application.java:835)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:515)
at fr.lip6.move.gal.application.Application.start(Application.java:140)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:43)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1461)
at org.eclipse.equinox.launcher.Main.main(Main.java:1434)
[2022-05-23 08:12:48] [INFO ] Time to serialize gal into /tmp/ReachabilityDeadlock9280701735954107655.gal : 345 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-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityDeadlock9280701735954107655.gal, -t, CGAL, -ctl, DEADLOCK, --load-order, /home/mcc/execution/model.ord, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityDeadlock9280701735954107655.gal -t CGAL -ctl DEADLOCK --load-order /home/mcc/execution/model.ord --gen-order FOLLOW
ITS-tools command line returned an error code 137

BK_STOP 1653293573290

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityDeadlock = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityDeadlock -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 ReachabilityDeadlock -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="RERS17pb115-PT-1"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="gold2021"
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 gold2021"
echo " Input is RERS17pb115-PT-1, examination is ReachabilityDeadlock"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r198-tajo-165281579300091"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/RERS17pb115-PT-1.tgz
mv RERS17pb115-PT-1 execution
cd execution
if [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "UpperBounds" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] || [ "ReachabilityDeadlock" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityDeadlock" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityDeadlock" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityDeadlock.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityDeadlock.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityDeadlock.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' ReachabilityDeadlock.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityDeadlock"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;