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.r444-smll-171701110600039.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 itstools
Input is UtilityControlRoom-COL-Z2T3N10, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r444-smll-171701110600039
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 436K
-rw-r--r-- 1 mcc users 6.7K Apr 13 05:24 CTLCardinality.txt
-rw-r--r-- 1 mcc users 53K Apr 13 05:24 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Apr 13 05:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Apr 13 05:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.3K Apr 23 08:04 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 23 08:04 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Apr 23 08:04 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 23 08:04 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Apr 13 05:34 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 95K Apr 13 05:34 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Apr 13 05:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 78K Apr 13 05:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Apr 23 08:04 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Apr 23 08:04 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_pt
-rw-r--r-- 1 mcc users 8 May 18 16:43 instance
-rw-r--r-- 1 mcc users 5 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 29K May 18 16:43 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 UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-00
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-01
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-02
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-03
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-04
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-05
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-06
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-07
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-08
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-09
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-10
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-11
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-12
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-13
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-14
FORMULA_NAME UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717073584918

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=UtilityControlRoom-COL-Z2T3N10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
ReachabilityFireability COL
Running Version 202405141337
[2024-05-30 12:53:07] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-30 12:53:07] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-30 12:53:07] [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.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2024-05-30 12:53:08] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-05-30 12:53:08] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1233 ms
[2024-05-30 12:53:08] [INFO ] Imported 13 HL places and 12 HL transitions for a total of 174 PT places and 270.0 transition bindings in 33 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 48 ms.
Reduction of identical properties reduced properties to check from 16 to 14
Working with output stream class java.io.PrintStream
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-05-30 12:53:09] [INFO ] Built PT skeleton of HLPN with 13 places and 12 transitions 37 arcs in 8 ms.
[2024-05-30 12:53:09] [INFO ] Skeletonized 13 HLPN properties in 0 ms.
Remains 2 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
RANDOM walk for 356 steps (0 resets) in 24 ms. (14 steps per ms) remains 0/2 properties
[2024-05-30 12:53:09] [INFO ] Flatten gal took : 26 ms
[2024-05-30 12:53:09] [INFO ] Flatten gal took : 6 ms
[2024-05-30 12:53:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6760977798798467174.gal : 9 ms
[2024-05-30 12:53:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18076336806252170380.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6760977798798467174.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18076336806252170380.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
its-reach command run as :

ITS tools runner thread asked to quit. Dying gracefully.
/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:168)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:334)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:270)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:313)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:188)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:177)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:162)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:329)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:396)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:840)
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2024-05-30 12:53:09] [INFO ] Flatten gal took : 5 ms
[2024-05-30 12:53:09] [INFO ] Flatten gal took : 5 ms
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2024-05-30 12:53:09] [INFO ] Flatten gal took : 4 ms
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2024-05-30 12:53:09] [INFO ] Flatten gal took : 4 ms
[2024-05-30 12:53:09] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality17331874109075636809.gal : 3 ms
[2024-05-30 12:53:09] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8293332268067479144.prop : 0 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality17331874109075636809.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8293332268067479144.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality8293332268067479144.prop.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 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,5,0.00529,3568,2,27,5,75,6,0,66,37,0
ITS runner timed out or was interrupted.
Total reachable state count : 5

Transition timeout forces synchronizations/join behavior on parameter c of sort Cli
Domain [Cli(10), Z(2), Z(2)] of place MovetoZ breaks symmetries in sort Z
[2024-05-30 12:53:09] [INFO ] Unfolded HLPN to a Petri net with 174 places and 270 transitions 850 arcs in 55 ms.
[2024-05-30 12:53:09] [INFO ] Unfolded 13 HLPN properties in 1 ms.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
[2024-05-30 12:53:09] [INFO ] Reduced 10 identical enabling conditions.
Ensure Unique test removed 40 transitions
Reduce redundant transitions removed 40 transitions.
[2024-05-30 12:53:10] [INFO ] Flatten gal took : 193 ms
[2024-05-30 12:53:10] [INFO ] Flatten gal took : 124 ms
[2024-05-30 12:53:10] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3953257001857979803.gal : 26 ms
[2024-05-30 12:53:10] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality7395436051536713688.prop : 127 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3953257001857979803.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality7395436051536713688.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality7395436051536713688.prop.
RANDOM walk for 40000 steps (8 resets) in 4076 ms. (9 steps per ms) remains 3/13 properties
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 851 ms. (46 steps per ms) remains 3/3 properties
SDD proceeding with computation,13 properties remain. new max is 4
SDD size :1 after 7
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :7 after 8
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :8 after 9
SDD proceeding with computation,13 properties remain. new max is 32
SDD size :9 after 16
SDD proceeding with computation,13 properties remain. new max is 64
SDD size :16 after 133
SDD proceeding with computation,13 properties remain. new max is 128
SDD size :133 after 143
SDD proceeding with computation,13 properties remain. new max is 256
SDD size :143 after 203
SDD proceeding with computation,13 properties remain. new max is 512
SDD size :203 after 977
BEST_FIRST walk for 40004 steps (8 resets) in 2143 ms. (18 steps per ms) remains 3/3 properties
SDD proceeding with computation,13 properties remain. new max is 1024
SDD size :977 after 3129
BEST_FIRST walk for 40003 steps (8 resets) in 2369 ms. (16 steps per ms) remains 3/3 properties
// Phase 1: matrix 230 rows 174 cols
[2024-05-30 12:53:12] [INFO ] Computed 23 invariants in 23 ms
Problem UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-01 is UNSAT
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
Problem UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-11 is UNSAT
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-11 TRUE TECHNIQUES SMT_REFINEMENT
Problem UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-12 is UNSAT
FORMULA UtilityControlRoom-COL-Z2T3N10-ReachabilityFireability-2024-12 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Real declared 164/404 variables, and 0 constraints, problems are : Problem set: 3 solved, 0 unsolved in 269 ms.
Refiners :[Positive P Invariants (semi-flows): 0/23 constraints, State Equation: 0/174 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 1078ms problems are : Problem set: 3 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 5949 ms.

BK_STOP 1717073593360

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="UtilityControlRoom-COL-Z2T3N10"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
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 itstools"
echo " Input is UtilityControlRoom-COL-Z2T3N10, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r444-smll-171701110600039"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/UtilityControlRoom-COL-Z2T3N10.tgz
mv UtilityControlRoom-COL-Z2T3N10 execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;