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.r107-tall-167814484900942.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)
..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool smartxred
Input is DNAwalker-PT-09ringLR, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r107-tall-167814484900942
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 644K
-rw-r--r-- 1 mcc users 6.6K Feb 25 13:01 CTLCardinality.txt
-rw-r--r-- 1 mcc users 73K Feb 25 13:01 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Feb 25 13:00 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K Feb 25 13:00 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.3K Feb 25 15:55 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 25 15:55 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 15:55 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 15:55 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K Feb 25 13:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 186K Feb 25 13:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 13:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 93K Feb 25 13:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 15:55 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 15:55 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 9 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 112K 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 DNAwalker-PT-09ringLR-ReachabilityCardinality-00
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-01
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-02
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-03
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-04
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-05
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-06
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-07
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-08
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-09
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-10
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-11
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-12
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-13
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-14
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1678444642176

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=smartxred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DNAwalker-PT-09ringLR
Applying reductions before tool smart
Invoking reducer
Running Version 202303021504
[2023-03-10 10:37:23] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2023-03-10 10:37:23] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-10 10:37:23] [INFO ] Load time of PNML (sax parser for PT used): 52 ms
[2023-03-10 10:37:23] [INFO ] Transformed 27 places.
[2023-03-10 10:37:23] [INFO ] Transformed 260 transitions.
[2023-03-10 10:37:23] [INFO ] Parsed PT model containing 27 places and 260 transitions and 760 arcs in 112 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 19 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 2 formulas.
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 803 resets, run finished after 407 ms. (steps per millisecond=24 ) properties (out of 14) seen :7
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 52 resets, run finished after 29 ms. (steps per millisecond=344 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 60 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 53 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 68 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 49 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 51 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 131 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 7) seen :0
Running SMT prover for 7 properties.
[2023-03-10 10:37:24] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2023-03-10 10:37:24] [INFO ] Computed 0 place invariants in 11 ms
[2023-03-10 10:37:24] [INFO ] After 164ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0 real:6
[2023-03-10 10:37:36] [INFO ] After 11608ms SMT Verify possible using all constraints in natural domain returned unsat :6 sat :0
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-09 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-06 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-05 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-02 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 7 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 11 out of 27 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 27/27 places, 260/260 transitions.
Drop transitions removed 5 transitions
Reduce isomorphic transitions removed 5 transitions.
Iterating post reduction 0 with 5 rules applied. Total rules applied 5 place count 27 transition count 255
Reduce places removed 3 places and 3 transitions.
Iterating global reduction 1 with 3 rules applied. Total rules applied 8 place count 24 transition count 252
Applied a total of 8 rules in 28 ms. Remains 24 /27 variables (removed 3) and now considering 252/260 (removed 8) transitions.
// Phase 1: matrix 252 rows 24 cols
[2023-03-10 10:37:36] [INFO ] Computed 0 place invariants in 8 ms
[2023-03-10 10:37:36] [INFO ] Dead Transitions using invariants and state equation in 143 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 173 ms. Remains : 24/27 places, 252/260 transitions.
Incomplete random walk after 10000 steps, including 985 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 85 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 2369250 steps, run timeout after 3001 ms. (steps per millisecond=789 ) properties seen :{}
Probabilistic random walk after 2369250 steps, saw 390679 distinct states, run finished after 3002 ms. (steps per millisecond=789 ) properties seen :0
Running SMT prover for 1 properties.
[2023-03-10 10:37:39] [INFO ] Invariant cache hit.
[2023-03-10 10:37:39] [INFO ] After 68ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 10:37:48] [INFO ] After 9078ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0
Parikh walk visited 0 properties in 0 ms.
Support contains 11 out of 24 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 252/252 transitions.
Applied a total of 0 rules in 7 ms. Remains 24 /24 variables (removed 0) and now considering 252/252 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 7 ms. Remains : 24/24 places, 252/252 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 24/24 places, 252/252 transitions.
Applied a total of 0 rules in 5 ms. Remains 24 /24 variables (removed 0) and now considering 252/252 (removed 0) transitions.
[2023-03-10 10:37:48] [INFO ] Invariant cache hit.
[2023-03-10 10:37:48] [INFO ] Implicit Places using invariants in 38 ms returned []
[2023-03-10 10:37:48] [INFO ] Invariant cache hit.
[2023-03-10 10:37:48] [INFO ] State equation strengthened by 38 read => feed constraints.
[2023-03-10 10:37:48] [INFO ] Implicit Places using invariants and state equation in 211 ms returned [18]
Discarding 1 places :
Drop transitions removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Implicit Place search using SMT with State Equation took 257 ms to find 1 implicit places.
Starting structural reductions in REACHABILITY mode, iteration 1 : 23/24 places, 243/252 transitions.
Applied a total of 0 rules in 9 ms. Remains 23 /23 variables (removed 0) and now considering 243/243 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 2 iterations and 271 ms. Remains : 23/24 places, 243/252 transitions.
Incomplete random walk after 10000 steps, including 845 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 78 resets, run finished after 11 ms. (steps per millisecond=909 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 2412246 steps, run timeout after 3001 ms. (steps per millisecond=803 ) properties seen :{}
Probabilistic random walk after 2412246 steps, saw 408820 distinct states, run finished after 3001 ms. (steps per millisecond=803 ) properties seen :0
Running SMT prover for 1 properties.
// Phase 1: matrix 243 rows 23 cols
[2023-03-10 10:37:52] [INFO ] Computed 0 place invariants in 6 ms
[2023-03-10 10:37:52] [INFO ] After 22ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 10:38:01] [INFO ] After 9070ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0
Parikh walk visited 0 properties in 0 ms.
Support contains 11 out of 23 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 23/23 places, 243/243 transitions.
Applied a total of 0 rules in 7 ms. Remains 23 /23 variables (removed 0) and now considering 243/243 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 8 ms. Remains : 23/23 places, 243/243 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 23/23 places, 243/243 transitions.
Applied a total of 0 rules in 5 ms. Remains 23 /23 variables (removed 0) and now considering 243/243 (removed 0) transitions.
[2023-03-10 10:38:01] [INFO ] Invariant cache hit.
[2023-03-10 10:38:01] [INFO ] Implicit Places using invariants in 29 ms returned []
[2023-03-10 10:38:01] [INFO ] Invariant cache hit.
[2023-03-10 10:38:01] [INFO ] State equation strengthened by 38 read => feed constraints.
[2023-03-10 10:38:01] [INFO ] Implicit Places using invariants and state equation in 155 ms returned []
Implicit Place search using SMT with State Equation took 186 ms to find 0 implicit places.
[2023-03-10 10:38:01] [INFO ] Redundant transitions in 14 ms returned []
[2023-03-10 10:38:01] [INFO ] Invariant cache hit.
[2023-03-10 10:38:01] [INFO ] Dead Transitions using invariants and state equation in 74 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 288 ms. Remains : 23/23 places, 243/243 transitions.
Applied a total of 0 rules in 3 ms. Remains 23 /23 variables (removed 0) and now considering 243/243 (removed 0) transitions.
Running SMT prover for 1 properties.
[2023-03-10 10:38:01] [INFO ] Invariant cache hit.
[2023-03-10 10:38:01] [INFO ] After 17ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 10:38:10] [INFO ] After 9066ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :0
[2023-03-10 10:38:10] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityCardinality.sr.xml took 6 ms.
[2023-03-10 10:38:10] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 23 places, 243 transitions and 714 arcs took 3 ms.
[2023-03-10 10:38:10] [INFO ] Flatten gal took : 37 ms
Total runtime 47126 ms.
There are residual formulas that ITS could not solve within timeout
======================================================
========== this is Smart for the MCC'2018 ============
======================================================
Running DNAwalker (PT), instance 09ringLR
Examination ReachabilityCardinality
Parser /home/mcc/BenchKit/bin//../reducer/bin//../../smart/bin//parser/Cardinality.jar
Model checker /home/mcc/BenchKit/bin//../reducer/bin//../../smart/bin//rem_exec//smart

GOT IT HERE. BS
Petri model created: 23 places, 243 transitions, 714 arcs.
Final Score: 527.504
Took : 7 seconds
Reachability Cardinality file is: ReachabilityCardinality.xml
READY TO PARSE. BS
PROPERTY: DNAwalker-PT-09ringLR-ReachabilityCardinality-03 (reachable & potential(( (! ( (tk(P6)) <= ( 2 ) )) & ( (! ( (tk(P14)) <= (tk(P21)) )) | ( (! ( (tk(P7)) <= ( 0 ) )) | ( ( ( (tk(P14)) <= ( 1 ) ) & ( ( 2 ) <= (tk(P17)) ) ) & ( ( (tk(P10)) <= ( 1 ) ) & ( ( ( (tk(P8)) <= ( 1 ) ) | ( ( (tk(P22)) <= (tk(P9)) ) & ( ( 2 ) <= (tk(P12)) ) ) ) & ( ( ( 1 ) <= (tk(P9)) ) | ( (tk(P3)) <= (tk(P22)) ) ) ) ) ) ) ) )))
FORMULA DNAwalker-PT-09ringLR-ReachabilityCardinality-03 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS

BK_STOP 1678444700890

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -timeout 360 -rebuildPNML

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="DNAwalker-PT-09ringLR"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="smartxred"
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 smartxred"
echo " Input is DNAwalker-PT-09ringLR, 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 r107-tall-167814484900942"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-09ringLR.tgz
mv DNAwalker-PT-09ringLR 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 ;