Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r649-smll-171774451600050.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)
..................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5568
Executing tool gold2023
Input is ResIsolation-PT-N09P5, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r649-smll-171774451600050
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 211M
-rw-r--r-- 1 mcc users 5.7K Jun 7 06:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 59K Jun 7 06:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Jun 7 06:38 CTLFireability.txt
-rw-r--r-- 1 mcc users 57K Jun 7 06:38 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Jun 7 06:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Jun 7 06:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Jun 7 06:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Jun 7 06:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 7 06:26 NewModel
-rw-r--r-- 1 mcc users 12K Jun 7 06:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 127K Jun 7 06:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.9K Jun 7 06:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 62K Jun 7 06:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 7 06:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 7 06:43 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 equiv_col
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 instance
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 iscolored
-rw-r--r-- 1 mcc users 211M Jun 7 06:26 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 ResIsolation-PT-N09P5-ReachabilityFireability-2024-00
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-01
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-02
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-03
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-04
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-05
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-06
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-07
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-08
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-09
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-10
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-11
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-12
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-13
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-14
FORMULA_NAME ResIsolation-PT-N09P5-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717797964653

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=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ResIsolation-PT-N09P5
Applying reductions before tool lola
Invoking reducer
Running Version 202304061127
[2024-06-07 22:06:08] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2024-06-07 22:06:08] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-07 22:06:18] [INFO ] Load time of PNML (sax parser for PT used): 9918 ms
[2024-06-07 22:06:18] [INFO ] Transformed 455 places.
[2024-06-07 22:06:19] [INFO ] Transformed 147864 transitions.
[2024-06-07 22:06:19] [INFO ] Found NUPN structural information;
[2024-06-07 22:06:19] [INFO ] Parsed PT model containing 455 places and 147864 transitions and 4129597 arcs in 11213 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 79 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 2 resets, run finished after 25201 ms. (steps per millisecond=0 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 82 ms. (steps per millisecond=12 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 116 ms. (steps per millisecond=8 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 87 ms. (steps per millisecond=11 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 82 ms. (steps per millisecond=12 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 126 ms. (steps per millisecond=7 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 157 ms. (steps per millisecond=6 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 104 ms. (steps per millisecond=9 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 105 ms. (steps per millisecond=9 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 60 ms. (steps per millisecond=16 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 80 ms. (steps per millisecond=12 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 100 ms. (steps per millisecond=10 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 85 ms. (steps per millisecond=11 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=18 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 93 ms. (steps per millisecond=10 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 118 ms. (steps per millisecond=8 ) properties (out of 16) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 67 ms. (steps per millisecond=14 ) properties (out of 16) seen :0
Interrupted probabilistic random walk after 160109 steps, run timeout after 78004 ms. (steps per millisecond=2 ) properties seen :{8=1, 9=1, 11=1, 13=1}
Probabilistic random walk after 160109 steps, saw 97169 distinct states, run finished after 78008 ms. (steps per millisecond=2 ) properties seen :4
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-13 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
Running SMT prover for 12 properties.
// Phase 1: matrix 147864 rows 455 cols
[2024-06-07 22:08:11] [INFO ] Computed 14 invariants in 4674 ms
[2024-06-07 22:08:11] [INFO ] After 676ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:12
[2024-06-07 22:08:12] [INFO ] [Nat]Absence check using 14 positive place invariants in 18 ms returned sat
[2024-06-07 22:08:36] [INFO ] After 24523ms SMT Verify possible using state equation in natural domain returned unsat :3 sat :8
[2024-06-07 22:08:37] [INFO ] After 24781ms SMT Verify possible using trap constraints in natural domain returned unsat :3 sat :8
Attempting to minimize the solution found.
Minimization took 49 ms.
[2024-06-07 22:08:37] [INFO ] After 25325ms SMT Verify possible using all constraints in natural domain returned unsat :3 sat :8
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-12 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-01 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA ResIsolation-PT-N09P5-ReachabilityFireability-2024-00 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 12 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 1 ms.
Support contains 71 out of 455 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 455/455 places, 147864/147864 transitions.
Graph (complete) has 6133 edges and 455 vertex of which 413 are kept as prefixes of interest. Removing 42 places using SCC suffix rule.1545 ms
Discarding 42 places :
Also discarding 28 output transitions
Drop transitions removed 28 transitions
Drop transitions removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Drop transitions removed 48 transitions
Trivial Post-agglo rules discarded 48 transitions
Performed 48 trivial Post agglomeration. Transition count delta: 48
Iterating post reduction 0 with 62 rules applied. Total rules applied 63 place count 413 transition count 147774
Reduce places removed 48 places and 0 transitions.
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Iterating post reduction 1 with 57 rules applied. Total rules applied 120 place count 365 transition count 147765
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 129 place count 356 transition count 147765
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 14 Pre rules applied. Total rules applied 129 place count 356 transition count 147751
Deduced a syphon composed of 14 places in 223 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 3 with 28 rules applied. Total rules applied 157 place count 342 transition count 147751
Discarding 219 places :
Symmetric choice reduction at 3 with 219 rule applications. Total rules 376 place count 123 transition count 147532
Iterating global reduction 3 with 219 rules applied. Total rules applied 595 place count 123 transition count 147532
Ensure Unique test removed 1541 transitions
Reduce isomorphic transitions removed 1541 transitions.
Iterating post reduction 3 with 1541 rules applied. Total rules applied 2136 place count 123 transition count 145991
Performed 12 Post agglomeration using F-continuation condition.Transition count delta: 12
Deduced a syphon composed of 12 places in 35 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 4 with 24 rules applied. Total rules applied 2160 place count 111 transition count 145979
Free-agglomeration rule applied 10 times.
Iterating global reduction 4 with 10 rules applied. Total rules applied 2170 place count 111 transition count 145969
Reduce places removed 10 places and 0 transitions.
Iterating post reduction 4 with 10 rules applied. Total rules applied 2180 place count 101 transition count 145969
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 2181 place count 100 transition count 145968
Applied a total of 2181 rules in 75477 ms. Remains 100 /455 variables (removed 355) and now considering 145968/147864 (removed 1896) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 75508 ms. Remains : 100/455 places, 145968/147864 transitions.
Interrupted random walk after 5217 steps, including 1 resets, run timeout after 30003 ms. (steps per millisecond=0 ) properties seen 0
Incomplete Best-First random walk after 10001 steps, including 1 resets, run finished after 3808 ms. (steps per millisecond=2 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1199 ms. (steps per millisecond=8 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1257 ms. (steps per millisecond=7 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1204 ms. (steps per millisecond=8 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1156 ms. (steps per millisecond=8 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1221 ms. (steps per millisecond=8 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1762 ms. (steps per millisecond=5 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1414 ms. (steps per millisecond=7 ) properties (out of 9) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1166 ms. (steps per millisecond=8 ) properties (out of 9) seen :0
Interrupted probabilistic random walk after 264967 steps, run timeout after 132002 ms. (steps per millisecond=2 ) properties seen :{}
Probabilistic random walk after 264967 steps, saw 66985 distinct states, run finished after 132005 ms. (steps per millisecond=2 ) properties seen :0
Running SMT prover for 9 properties.
// Phase 1: matrix 145968 rows 100 cols
[2024-06-07 22:12:52] [INFO ] Computed 14 invariants in 2311 ms
[2024-06-07 22:12:52] [INFO ] After 165ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:9
[2024-06-07 22:12:52] [INFO ] [Nat]Absence check using 14 positive place invariants in 60 ms returned sat
[2024-06-07 22:13:17] [INFO ] After 24567ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :8
[2024-06-07 22:13:17] [INFO ] After 24918ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :8
Attempting to minimize the solution found.
Minimization took 19 ms.
[2024-06-07 22:13:17] [INFO ] After 25397ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :8
Fused 9 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 71 out of 100 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 100/100 places, 145968/145968 transitions.
Applied a total of 0 rules in 5216 ms. Remains 100 /100 variables (removed 0) and now considering 145968/145968 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 5220 ms. Remains : 100/100 places, 145968/145968 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 100/100 places, 145968/145968 transitions.
Applied a total of 0 rules in 5104 ms. Remains 100 /100 variables (removed 0) and now considering 145968/145968 (removed 0) transitions.
[2024-06-07 22:13:28] [INFO ] Invariant cache hit.
[2024-06-07 22:13:28] [INFO ] Implicit Places using invariants in 349 ms returned []
Implicit Place search using SMT only with invariants took 350 ms to find 0 implicit places.
[2024-06-07 22:13:28] [INFO ] Invariant cache hit.
[2024-06-07 22:13:58] [INFO ] Performed 41123/145968 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2024-06-07 22:14:28] [INFO ] Dead Transitions using invariants and state equation in 60216 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 65788 ms. Remains : 100/100 places, 145968/145968 transitions.
[2024-06-07 22:14:28] [INFO ] Export to MCC of 9 properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 24 ms.
[2024-06-07 22:14:30] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 100 places, 145968 transitions and 4085726 arcs took 1812 ms.
[2024-06-07 22:15:11] [INFO ] Flatten gal took : 36778 ms
Total runtime 543225 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT ResIsolation-PT-N09P5
BK_EXAMINATION: ReachabilityFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/370
ReachabilityFireability

BK_STOP 1717798746953

--------------------
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_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/370/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/370/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/370/ReachabilityFireability.xml
/home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin//../BenchKit_head.sh: line 63: 500 Killed lola --conf=$BIN_DIR/configfiles/reachabilityfireabilityconf --formula=$DIR/ReachabilityFireability.xml --verdictfile=$DIR/GenericPropertiesVerdict.xml $DIR/model.pnml

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="ResIsolation-PT-N09P5"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="gold2023"
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 gold2023"
echo " Input is ResIsolation-PT-N09P5, 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 r649-smll-171774451600050"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ResIsolation-PT-N09P5.tgz
mv ResIsolation-PT-N09P5 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 ;