Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r022-smll-171620128700182.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool gold2023
Input is AirplaneLD-PT-1000, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r022-smll-171620128700182
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 26M
-rw-r--r-- 1 mcc users 740K Apr 12 04:40 CTLCardinality.txt
-rw-r--r-- 1 mcc users 2.5M Apr 12 04:40 CTLCardinality.xml
-rw-r--r-- 1 mcc users 493K Apr 12 04:09 CTLFireability.txt
-rw-r--r-- 1 mcc users 2.7M Apr 12 04:09 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 279K Apr 22 14:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 700K Apr 22 14:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 262K Apr 22 14:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 1.1M Apr 22 14:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 677K Apr 12 06:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 2.2M Apr 12 06:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 1.5M Apr 12 05:48 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 8.6M Apr 12 05:48 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 48K Apr 22 14:27 UpperBounds.txt
-rw-r--r-- 1 mcc users 91K Apr 22 14:27 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 5 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 4.3M May 18 16:42 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 1716289089028

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=gold2023
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=AirplaneLD-PT-1000
Not applying reductions.
Model is PT
QuasiLiveness PT
Running Version 202304061127
[2024-05-21 10:58:12] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2024-05-21 10:58:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 10:58:13] [INFO ] Load time of PNML (sax parser for PT used): 1073 ms
[2024-05-21 10:58:13] [INFO ] Transformed 7019 places.
[2024-05-21 10:58:13] [INFO ] Transformed 8008 transitions.
[2024-05-21 10:58:13] [INFO ] Found NUPN structural information;
[2024-05-21 10:58:13] [INFO ] Parsed PT model containing 7019 places and 8008 transitions and 30528 arcs in 1300 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 7019/7019 places, 8008/8008 transitions.
Reduce places removed 3005 places and 0 transitions.
Iterating post reduction 0 with 3005 rules applied. Total rules applied 3005 place count 4014 transition count 8008
Applied a total of 3005 rules in 221 ms. Remains 4014 /7019 variables (removed 3005) and now considering 8008/8008 (removed 0) transitions.
// Phase 1: matrix 8008 rows 4014 cols
[2024-05-21 10:58:16] [INFO ] Computed 1 invariants in 2347 ms
[2024-05-21 10:58:18] [INFO ] SMT solver returned unknown. Retrying;
[2024-05-21 10:58:18] [INFO ] Implicit Places using invariants in 4575 ms returned []
[2024-05-21 10:58:18] [INFO ] Invariant cache hit.
[2024-05-21 10:58:19] [INFO ] SMT solver returned unknown. Retrying;
[2024-05-21 10:58:19] [INFO ] Implicit Places using invariants and state equation in 1203 ms returned []
Implicit Place search using SMT with State Equation took 5818 ms to find 0 implicit places.
[2024-05-21 10:58:19] [INFO ] Invariant cache hit.
[2024-05-21 10:58:20] [INFO ] SMT solver returned unknown. Retrying;
[2024-05-21 10:58:20] [INFO ] Dead Transitions using invariants and state equation in 1092 ms found 0 transitions.
Starting structural reductions in LIVENESS mode, iteration 1 : 4014/7019 places, 8008/8008 transitions.
Finished structural reductions in LIVENESS mode , in 1 iterations and 7136 ms. Remains : 4014/7019 places, 8008/8008 transitions.
Discarding 3999 transitions out of 8008. Remains 4009
Initial state reduction rules removed 5 formulas.
[2024-05-21 10:58:22] [INFO ] Flatten gal took : 663 ms
[2024-05-21 10:58:23] [INFO ] Flatten gal took : 339 ms
[2024-05-21 10:58:23] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality90774034022344594.gal : 183 ms
[2024-05-21 10:58:23] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality2702394865810414026.prop : 32 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202304061127/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality90774034022344594.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality2702394865810414026.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202304061127/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...326
Loading property file /tmp/ReachabilityCardinality2702394865810414026.prop.
Incomplete random walk after 10000 steps, including 1257 resets, run finished after 6348 ms. (steps per millisecond=1 ) properties (out of 4004) seen :505
Running SMT prover for 3499 properties.
[2024-05-21 10:58:27] [INFO ] Invariant cache hit.
SDD proceeding with computation,4004 properties remain. new max is 4
SDD size :1 after 561
SDD proceeding with computation,4004 properties remain. new max is 8
SDD size :561 after 566
SDD proceeding with computation,4004 properties remain. new max is 16
SDD size :566 after 575
SDD proceeding with computation,4004 properties remain. new max is 32
SDD size :575 after 592
SDD proceeding with computation,4004 properties remain. new max is 64
SDD size :592 after 624
SDD proceeding with computation,4004 properties remain. new max is 128
SDD size :624 after 689
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream close...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.assertInvariants(DeadlockTester.java:2350)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:621)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:342)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMT(DeadlockTester.java:226)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.applyReductions(ReachabilitySolver.java:96)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.applyReachabilitySolver(GlobalPropertySolver.java:724)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:558)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preSolveLiveness(GlobalPropertySolver.java:412)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.preStableMarking(GlobalPropertySolver.java:321)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.solveProperty(GlobalPropertySolver.java:294)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:426)
at fr.lip6.move.gal.application.Application.start(Application.java:182)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
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:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2024-05-21 10:59:52] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2024-05-21 10:59:52] [INFO ] After 25039ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 3499 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 3502 out of 4014 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 4014/4014 places, 8008/8008 transitions.
Graph (complete) has 5512 edges and 4014 vertex of which 4012 are kept as prefixes of interest. Removing 2 places using SCC suffix rule.20 ms
Discarding 2 places :
Also discarding 0 output transitions
Drop transitions removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 5 place count 4012 transition count 8004
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 3 Pre rules applied. Total rules applied 5 place count 4012 transition count 8001
Deduced a syphon composed of 3 places in 5 ms
Ensure Unique test removed 2 places
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 1 with 8 rules applied. Total rules applied 13 place count 4007 transition count 8001
Discarding 496 places :
Symmetric choice reduction at 1 with 496 rule applications. Total rules 509 place count 3511 transition count 7505
Iterating global reduction 1 with 496 rules applied. Total rules applied 1005 place count 3511 transition count 7505
Ensure Unique test removed 496 transitions
Reduce isomorphic transitions removed 496 transitions.
Iterating post reduction 1 with 496 rules applied. Total rules applied 1501 place count 3511 transition count 7009
Free-agglomeration rule applied 5 times.
Iterating global reduction 2 with 5 rules applied. Total rules applied 1506 place count 3511 transition count 7004
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 2 with 5 rules applied. Total rules applied 1511 place count 3506 transition count 7004
Applied a total of 1511 rules in 790 ms. Remains 3506 /4014 variables (removed 508) and now considering 7004/8008 (removed 1004) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 793 ms. Remains : 3506/4014 places, 7004/8008 transitions.
SDD proceeding with computation,4004 properties remain. new max is 256
SDD size :689 after 818
SDD proceeding with computation,4004 properties remain. new max is 512
SDD size :818 after 509808
Interrupted random walk after 82536 steps, including 12207 resets, run timeout after 30001 ms. (steps per millisecond=2 ) properties seen 3471
Incomplete Best-First random walk after 100001 steps, including 14 resets, run finished after 66 ms. (steps per millisecond=1515 ) properties (out of 28) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 59 ms. (steps per millisecond=1694 ) properties (out of 27) seen :1
Incomplete Best-First random walk after 100001 steps, including 14 resets, run finished after 50 ms. (steps per millisecond=2000 ) properties (out of 26) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 47 ms. (steps per millisecond=2127 ) properties (out of 25) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 49 ms. (steps per millisecond=2040 ) properties (out of 24) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 48 ms. (steps per millisecond=2083 ) properties (out of 23) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 47 ms. (steps per millisecond=2127 ) properties (out of 22) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 47 ms. (steps per millisecond=2127 ) properties (out of 21) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 48 ms. (steps per millisecond=2083 ) properties (out of 20) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 51 ms. (steps per millisecond=1960 ) properties (out of 19) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 52 ms. (steps per millisecond=1923 ) properties (out of 18) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 50 ms. (steps per millisecond=2000 ) properties (out of 17) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 51 ms. (steps per millisecond=1960 ) properties (out of 16) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 51 ms. (steps per millisecond=1960 ) properties (out of 15) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 50 ms. (steps per millisecond=2000 ) properties (out of 14) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 52 ms. (steps per millisecond=1923 ) properties (out of 13) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 53 ms. (steps per millisecond=1886 ) properties (out of 12) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 52 ms. (steps per millisecond=1923 ) properties (out of 11) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 47 ms. (steps per millisecond=2127 ) properties (out of 10) seen :1
Incomplete Best-First random walk after 100001 steps, including 14 resets, run finished after 46 ms. (steps per millisecond=2173 ) properties (out of 9) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 46 ms. (steps per millisecond=2173 ) properties (out of 8) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 46 ms. (steps per millisecond=2173 ) properties (out of 7) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 50 ms. (steps per millisecond=2000 ) properties (out of 6) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 46 ms. (steps per millisecond=2173 ) properties (out of 5) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 46 ms. (steps per millisecond=2173 ) properties (out of 4) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 45 ms. (steps per millisecond=2222 ) properties (out of 3) seen :1
Incomplete Best-First random walk after 100001 steps, including 13 resets, run finished after 44 ms. (steps per millisecond=2272 ) properties (out of 2) seen :1
Finished Best-First random walk after 5291 steps, including 0 resets, run visited all 1 properties in 4 ms. (steps per millisecond=1322 )
Parikh walk visited 0 properties in 0 ms.
ITS runner failed with exception null
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Thread.join(Thread.java:1304)
at java.base/java.lang.Thread.join(Thread.java:1372)
at fr.lip6.move.gal.application.runner.AbstractRunner.join(AbstractRunner.java:27)
at fr.lip6.move.gal.application.runner.its.ITSRunner.join(ITSRunner.java:177)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:675)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
Able to resolve query QuasiLiveness after proving 4009 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 132550 ms.

BK_STOP 1716289225934

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800

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="AirplaneLD-PT-1000"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="gold2023"
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 2-5568"
echo " Executing tool gold2023"
echo " Input is AirplaneLD-PT-1000, 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 r022-smll-171620128700182"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AirplaneLD-PT-1000.tgz
mv AirplaneLD-PT-1000 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 ;