Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r197-smll-167840344000302.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.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 2-5348
Executing tool itstools
Input is HealthRecord-PT-09, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r197-smll-167840344000302
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 492K
-rw-r--r-- 1 mcc users 6.4K Feb 26 18:20 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K Feb 26 18:20 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K Feb 26 18:13 CTLFireability.txt
-rw-r--r-- 1 mcc users 62K Feb 26 18:13 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.1K Feb 25 16:13 LTLCardinality.txt
-rw-r--r-- 1 mcc users 20K Feb 25 16:13 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 16:13 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Feb 25 16:13 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.8K Feb 26 18:23 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 92K Feb 26 18:23 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.9K Feb 26 18:21 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K Feb 26 18:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:13 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:13 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 68K Mar 5 18:22 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 HealthRecord-PT-09-ReachabilityCardinality-00
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-01
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-02
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-03
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-04
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-05
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-06
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-07
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-08
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-09
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-10
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-11
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-12
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-13
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-14
FORMULA_NAME HealthRecord-PT-09-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1678512707097

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=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=HealthRecord-PT-09
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202303021504
[2023-03-11 05:31:51] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-11 05:31:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-11 05:31:51] [INFO ] Load time of PNML (sax parser for PT used): 127 ms
[2023-03-11 05:31:51] [INFO ] Transformed 157 places.
[2023-03-11 05:31:51] [INFO ] Transformed 327 transitions.
[2023-03-11 05:31:51] [INFO ] Found NUPN structural information;
[2023-03-11 05:31:51] [INFO ] Parsed PT model containing 157 places and 327 transitions and 859 arcs in 378 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 28 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 26 transitions
Reduce redundant transitions removed 26 transitions.
FORMULA HealthRecord-PT-09-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HealthRecord-PT-09-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA HealthRecord-PT-09-ReachabilityCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-11 05:31:52] [INFO ] Flatten gal took : 173 ms
[2023-03-11 05:31:52] [INFO ] Flatten gal took : 47 ms
[2023-03-11 05:31:52] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11770949666083535556.gal : 36 ms
[2023-03-11 05:31:52] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3894177243162943148.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11770949666083535556.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3894177243162943148.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality3894177243162943148.prop.
SDD proceeding with computation,13 properties remain. new max is 4
SDD size :1 after 4
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :4 after 13
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :13 after 17
SDD proceeding with computation,13 properties remain. new max is 32
SDD size :17 after 1153
SDD proceeding with computation,13 properties remain. new max is 64
SDD size :1153 after 15553
SDD proceeding with computation,13 properties remain. new max is 128
SDD size :15553 after 19009
SDD proceeding with computation,13 properties remain. new max is 256
SDD size :19009 after 27073
Incomplete random walk after 10000 steps, including 596 resets, run finished after 1233 ms. (steps per millisecond=8 ) properties (out of 13) seen :3
FORMULA HealthRecord-PT-09-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HealthRecord-PT-09-ReachabilityCardinality-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA HealthRecord-PT-09-ReachabilityCardinality-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 95 resets, run finished after 95 ms. (steps per millisecond=105 ) properties (out of 10) seen :0
Reachability property HealthRecord-PT-09-ReachabilityCardinality-14 is true.
FORMULA HealthRecord-PT-09-ReachabilityCardinality-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property HealthRecord-PT-09-ReachabilityCardinality-11 does not hold.
Invariant property HealthRecord-PT-09-ReachabilityCardinality-09 does not hold.
FORMULA HealthRecord-PT-09-ReachabilityCardinality-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property HealthRecord-PT-09-ReachabilityCardinality-03 is true.
FORMULA HealthRecord-PT-09-ReachabilityCardinality-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,9 properties remain. new max is 256
SDD size :27073 after 124609
Incomplete Best-First random walk after 10001 steps, including 89 resets, run finished after 99 ms. (steps per millisecond=101 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10000 steps, including 91 resets, run finished after 82 ms. (steps per millisecond=121 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 84 resets, run finished after 96 ms. (steps per millisecond=104 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 94 resets, run finished after 102 ms. (steps per millisecond=98 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10000 steps, including 87 resets, run finished after 94 ms. (steps per millisecond=106 ) properties (out of 10) seen :2
SDD proceeding with computation,9 properties remain. new max is 512
SDD size :124609 after 133825
Incomplete Best-First random walk after 10001 steps, including 86 resets, run finished after 95 ms. (steps per millisecond=105 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 62 resets, run finished after 61 ms. (steps per millisecond=163 ) properties (out of 8) seen :3
FORMULA HealthRecord-PT-09-ReachabilityCardinality-04 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA HealthRecord-PT-09-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Running SMT prover for 5 properties.
[2023-03-11 05:31:53] [INFO ] Flow matrix only has 289 transitions (discarded 12 similar events)
// Phase 1: matrix 289 rows 157 cols
[2023-03-11 05:31:53] [INFO ] Computed 18 place invariants in 13 ms
SDD proceeding with computation,9 properties remain. new max is 1024
SDD size :133825 after 152257
[2023-03-11 05:31:53] [INFO ] After 291ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:5
[2023-03-11 05:31:54] [INFO ] [Nat]Absence check using 10 positive place invariants in 13 ms returned sat
[2023-03-11 05:31:54] [INFO ] [Nat]Absence check using 10 positive and 8 generalized place invariants in 14 ms returned sat
[2023-03-11 05:31:54] [INFO ] After 229ms SMT Verify possible using state equation in natural domain returned unsat :1 sat :4
[2023-03-11 05:31:54] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-11 05:31:54] [INFO ] After 96ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :1 sat :4
[2023-03-11 05:31:54] [INFO ] Deduced a trap composed of 38 places in 124 ms of which 7 ms to minimize.
[2023-03-11 05:31:54] [INFO ] Deduced a trap composed of 39 places in 112 ms of which 0 ms to minimize.
[2023-03-11 05:31:54] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 280 ms
[2023-03-11 05:31:54] [INFO ] Deduced a trap composed of 40 places in 91 ms of which 1 ms to minimize.
[2023-03-11 05:31:54] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 114 ms
SDD proceeding with computation,9 properties remain. new max is 2048
SDD size :152257 after 229441
[2023-03-11 05:31:54] [INFO ] After 596ms SMT Verify possible using trap constraints in natural domain returned unsat :1 sat :4
Attempting to minimize the solution found.
Minimization took 85 ms.
[2023-03-11 05:31:55] [INFO ] After 1088ms SMT Verify possible using all constraints in natural domain returned unsat :1 sat :4
FORMULA HealthRecord-PT-09-ReachabilityCardinality-00 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 5 Parikh solutions to 4 different solutions.
Parikh walk visited 0 properties in 20 ms.
Support contains 45 out of 157 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 157/157 places, 301/301 transitions.
Graph (trivial) has 138 edges and 157 vertex of which 4 / 157 are part of one of the 2 SCC in 5 ms
Free SCC test removed 2 places
Drop transitions removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Graph (complete) has 661 edges and 155 vertex of which 146 are kept as prefixes of interest. Removing 9 places using SCC suffix rule.2 ms
Discarding 9 places :
Also discarding 0 output transitions
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 0 with 1 rules applied. Total rules applied 3 place count 146 transition count 283
Reduce places removed 1 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 5 place count 145 transition count 282
Discarding 55 places :
Symmetric choice reduction at 2 with 55 rule applications. Total rules 60 place count 90 transition count 172
Iterating global reduction 2 with 55 rules applied. Total rules applied 115 place count 90 transition count 172
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 117 place count 89 transition count 171
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: -21
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 123 place count 86 transition count 192
Drop transitions removed 2 transitions
Redundant transition composition rules discarded 2 transitions
Iterating global reduction 2 with 2 rules applied. Total rules applied 125 place count 86 transition count 190
Free-agglomeration rule applied 3 times.
Iterating global reduction 2 with 3 rules applied. Total rules applied 128 place count 86 transition count 187
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 2 with 3 rules applied. Total rules applied 131 place count 83 transition count 187
Partial Free-agglomeration rule applied 18 times.
Drop transitions removed 18 transitions
Iterating global reduction 3 with 18 rules applied. Total rules applied 149 place count 83 transition count 187
Applied a total of 149 rules in 90 ms. Remains 83 /157 variables (removed 74) and now considering 187/301 (removed 114) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 90 ms. Remains : 83/157 places, 187/301 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 322 ms. (steps per millisecond=31 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 98 ms. (steps per millisecond=102 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 91 ms. (steps per millisecond=109 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 98 ms. (steps per millisecond=102 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 72 ms. (steps per millisecond=138 ) properties (out of 4) seen :0
Finished probabilistic random walk after 1322872 steps, run visited all 4 properties in 2163 ms. (steps per millisecond=611 )
Probabilistic random walk after 1322872 steps, saw 161100 distinct states, run finished after 2163 ms. (steps per millisecond=611 ) properties seen :4
FORMULA HealthRecord-PT-09-ReachabilityCardinality-15 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA HealthRecord-PT-09-ReachabilityCardinality-13 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA HealthRecord-PT-09-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA HealthRecord-PT-09-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
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)
All properties solved without resorting to model-checking.
Total runtime 6941 ms.

BK_STOP 1678512719827

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -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="HealthRecord-PT-09"
export BK_EXAMINATION="ReachabilityCardinality"
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 2-5348"
echo " Executing tool itstools"
echo " Input is HealthRecord-PT-09, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r197-smll-167840344000302"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/HealthRecord-PT-09.tgz
mv HealthRecord-PT-09 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;