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.r293-tall-167873945900774.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 PolyORBNT-PT-S10J40, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r293-tall-167873945900774
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 20M
-rw-r--r-- 1 mcc users 32K Feb 26 00:19 CTLCardinality.txt
-rw-r--r-- 1 mcc users 183K Feb 26 00:19 CTLCardinality.xml
-rw-r--r-- 1 mcc users 248K Feb 25 23:59 CTLFireability.txt
-rw-r--r-- 1 mcc users 935K Feb 25 23:59 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 23K Feb 25 16:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 75K Feb 25 16:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 48K Feb 25 16:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 143K Feb 25 16:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 78K Feb 26 01:27 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 358K Feb 26 01:27 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 999K Feb 26 01:08 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 3.3M Feb 26 01:08 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 16:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 7.2K Feb 25 16:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 14M Mar 5 18:23 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 PolyORBNT-PT-S10J40-ReachabilityCardinality-00
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-01
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-02
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-03
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-04
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-05
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-06
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-07
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-08
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-09
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-10
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-11
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-12
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-13
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-14
FORMULA_NAME PolyORBNT-PT-S10J40-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1678970417825

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=PolyORBNT-PT-S10J40
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202303021504
[2023-03-16 12:40:19] [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]
[2023-03-16 12:40:19] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-16 12:40:19] [INFO ] Load time of PNML (sax parser for PT used): 536 ms
[2023-03-16 12:40:20] [INFO ] Transformed 854 places.
[2023-03-16 12:40:20] [INFO ] Transformed 12340 transitions.
[2023-03-16 12:40:20] [INFO ] Parsed PT model containing 854 places and 12340 transitions and 113999 arcs in 716 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 32 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 10110 transitions
Reduce redundant transitions removed 10110 transitions.
[2023-03-16 12:40:20] [INFO ] Flatten gal took : 373 ms
[2023-03-16 12:40:21] [INFO ] Flatten gal took : 220 ms
[2023-03-16 12:40:21] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16400788538861672184.gal : 83 ms
[2023-03-16 12:40:21] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality3868509179297197939.prop : 19 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/ReachabilityCardinality16400788538861672184.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality3868509179297197939.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
Incomplete random walk after 10000 steps, including 559 resets, run finished after 1222 ms. (steps per millisecond=8 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 37 ms. (steps per millisecond=27 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 43 ms. (steps per millisecond=23 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 27 ms. (steps per millisecond=37 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 19 ms. (steps per millisecond=52 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 33 ms. (steps per millisecond=30 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1000 steps, including 9 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 16) seen :0
Loading property file /tmp/ReachabilityCardinality3868509179297197939.prop.
Incomplete Best-First random walk after 1000 steps, including 10 resets, run finished after 17 ms. (steps per millisecond=58 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 19 ms. (steps per millisecond=52 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 16) seen :0
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :2 after 4
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :4 after 5
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :5 after 6
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :6 after 210
Interrupted probabilistic random walk after 69550 steps, run timeout after 3001 ms. (steps per millisecond=23 ) properties seen :{6=1, 9=1, 12=1, 14=1}
Probabilistic random walk after 69550 steps, saw 21150 distinct states, run finished after 3001 ms. (steps per millisecond=23 ) properties seen :4
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-14 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-12 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-09 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-06 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
Running SMT prover for 12 properties.
[2023-03-16 12:40:24] [INFO ] Flow matrix only has 2221 transitions (discarded 9 similar events)
// Phase 1: matrix 2221 rows 854 cols
[2023-03-16 12:40:24] [INFO ] Computed 112 place invariants in 130 ms
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :210 after 444
[2023-03-16 12:40:26] [INFO ] After 462ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:12
[2023-03-16 12:40:26] [INFO ] [Nat]Absence check using 81 positive place invariants in 17 ms returned sat
[2023-03-16 12:40:26] [INFO ] [Nat]Absence check using 81 positive and 31 generalized place invariants in 44 ms returned sat
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :444 after 1681
[2023-03-16 12:40:36] [INFO ] After 10101ms SMT Verify possible using state equation in natural domain returned unsat :9 sat :2
[2023-03-16 12:40:36] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-16 12:40:37] [INFO ] After 606ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :9 sat :2
[2023-03-16 12:40:37] [INFO ] After 894ms SMT Verify possible using trap constraints in natural domain returned unsat :9 sat :2
Attempting to minimize the solution found.
Minimization took 155 ms.
[2023-03-16 12:40:37] [INFO ] After 11570ms SMT Verify possible using all constraints in natural domain returned unsat :9 sat :2
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-15 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-13 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-11 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-07 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-03 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-02 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-01 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-00 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 12 Parikh solutions to 3 different solutions.
Parikh walk visited 0 properties in 20 ms.
Support contains 7 out of 854 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 854/854 places, 2230/2230 transitions.
Ensure Unique test removed 10 places
Drop transitions removed 43 transitions
Trivial Post-agglo rules discarded 43 transitions
Performed 43 trivial Post agglomeration. Transition count delta: 43
Iterating post reduction 0 with 53 rules applied. Total rules applied 53 place count 844 transition count 2187
Reduce places removed 43 places and 0 transitions.
Iterating post reduction 1 with 43 rules applied. Total rules applied 96 place count 801 transition count 2187
Performed 43 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 43 Pre rules applied. Total rules applied 96 place count 801 transition count 2144
Deduced a syphon composed of 43 places in 1 ms
Reduce places removed 43 places and 0 transitions.
Iterating global reduction 2 with 86 rules applied. Total rules applied 182 place count 758 transition count 2144
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 183 place count 757 transition count 2143
Iterating global reduction 2 with 1 rules applied. Total rules applied 184 place count 757 transition count 2143
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 186 place count 756 transition count 2142
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 2 with 1 rules applied. Total rules applied 187 place count 756 transition count 2141
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 188 place count 755 transition count 2141
Applied a total of 188 rules in 543 ms. Remains 755 /854 variables (removed 99) and now considering 2141/2230 (removed 89) transitions.
[2023-03-16 12:40:38] [INFO ] Flow matrix only has 2132 transitions (discarded 9 similar events)
// Phase 1: matrix 2132 rows 755 cols
[2023-03-16 12:40:38] [INFO ] Computed 102 place invariants in 43 ms
[2023-03-16 12:40:39] [INFO ] Dead Transitions using invariants and state equation in 1161 ms found 615 transitions.
Found 615 dead transitions using SMT.
Drop transitions removed 615 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 615 transitions.
Starting structural reductions in REACHABILITY mode, iteration 1 : 755/854 places, 1526/2230 transitions.
Applied a total of 0 rules in 43 ms. Remains 755 /755 variables (removed 0) and now considering 1526/1526 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1750 ms. Remains : 755/854 places, 1526/2230 transitions.
Finished random walk after 6510 steps, including 459 resets, run visited all 3 properties in 101 ms. (steps per millisecond=64 )
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-PT-S10J40-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_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 20224 ms.

BK_STOP 1678970444277

--------------------
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="PolyORBNT-PT-S10J40"
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 PolyORBNT-PT-S10J40, 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 r293-tall-167873945900774"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-PT-S10J40.tgz
mv PolyORBNT-PT-S10J40 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 ;