About the Execution of ITS-Tools for MAPK-PT-00160
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.r224-tall-171649612800445.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 itstools
Input is MAPK-PT-00160, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r224-tall-171649612800445
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 484K
-rw-r--r-- 1 mcc users 8.2K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 41K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.5K May 19 07:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 19 16:04 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 22 14:52 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 22 14:52 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Apr 13 07:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 131K Apr 13 07:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.0K Apr 13 07:53 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 61K Apr 13 07:53 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 22 14:52 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:52 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 6 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 25K May 18 16:42 model.pnml
--------------------
content from stdout:
=== Data for post analysis generated by BenchKit (invocation template)
The expected result is a vector of positive values
NUM_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME MAPK-PT-00160-UpperBounds-00
FORMULA_NAME MAPK-PT-00160-UpperBounds-01
FORMULA_NAME MAPK-PT-00160-UpperBounds-02
FORMULA_NAME MAPK-PT-00160-UpperBounds-03
FORMULA_NAME MAPK-PT-00160-UpperBounds-04
FORMULA_NAME MAPK-PT-00160-UpperBounds-05
FORMULA_NAME MAPK-PT-00160-UpperBounds-06
FORMULA_NAME MAPK-PT-00160-UpperBounds-07
FORMULA_NAME MAPK-PT-00160-UpperBounds-08
FORMULA_NAME MAPK-PT-00160-UpperBounds-09
FORMULA_NAME MAPK-PT-00160-UpperBounds-10
FORMULA_NAME MAPK-PT-00160-UpperBounds-11
FORMULA_NAME MAPK-PT-00160-UpperBounds-12
FORMULA_NAME MAPK-PT-00160-UpperBounds-13
FORMULA_NAME MAPK-PT-00160-UpperBounds-14
FORMULA_NAME MAPK-PT-00160-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1716592166243
Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=MAPK-PT-00160
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
UpperBounds PT
Running Version 202405141337
[2024-05-24 23:09:27] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-24 23:09:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-24 23:09:27] [INFO ] Load time of PNML (sax parser for PT used): 39 ms
[2024-05-24 23:09:27] [INFO ] Transformed 22 places.
[2024-05-24 23:09:27] [INFO ] Transformed 30 transitions.
[2024-05-24 23:09:27] [INFO ] Parsed PT model containing 22 places and 30 transitions and 90 arcs in 131 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
Current structural bounds on expressions (Initially) : Max Seen:[80, 0, 0, 40, 0, 0, 120, 0, 0, 120, 120, 0, 0, 80, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
Current structural bounds on expressions (Before main loop) : Max Seen:[80, 0, 0, 40, 0, 0, 120, 0, 0, 120, 120, 0, 0, 80, 0, 0] Max Struct:[+inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf, +inf]
// Phase 1: matrix 30 rows 22 cols
[2024-05-24 23:09:27] [INFO ] Computed 7 invariants in 9 ms
Current structural bounds on expressions (after invariants) : Max Seen:[80, 0, 0, 40, 0, 0, 120, 0, 0, 120, 120, 0, 0, 80, 0, 0] Max Struct:[80, 120, 80, 40, 80, 120, 120, 80, 80, 120, 120, 160, 80, 80, 40, 120]
FORMULA MAPK-PT-00160-UpperBounds-13 80 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA MAPK-PT-00160-UpperBounds-10 120 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA MAPK-PT-00160-UpperBounds-09 120 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA MAPK-PT-00160-UpperBounds-06 120 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA MAPK-PT-00160-UpperBounds-03 40 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA MAPK-PT-00160-UpperBounds-00 80 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 10031 steps (2 resets) in 24 ms. (401 steps per ms)
FORMULA MAPK-PT-00160-UpperBounds-14 40 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MAPK-PT-00160-UpperBounds-12 80 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MAPK-PT-00160-UpperBounds-08 80 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MAPK-PT-00160-UpperBounds-07 80 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MAPK-PT-00160-UpperBounds-11 160 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 60006 steps (12 resets) in 58 ms. (1017 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[21, 10, 3, 5, 5] Max Struct:[120, 80, 80, 120, 120]
[2024-05-24 23:09:27] [INFO ] Invariant cache hit.
[2024-05-24 23:09:27] [INFO ] [Real]Absence check using 7 positive place invariants in 5 ms returned sat
[2024-05-24 23:09:27] [INFO ] [Real]Absence check using state equation in 18 ms returned sat
[2024-05-24 23:09:27] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 7 ms.
[2024-05-24 23:09:27] [INFO ] Solution in real domain found non-integer solution.
[2024-05-24 23:09:27] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:27] [INFO ] [Nat]Absence check using state equation in 13 ms returned sat
[2024-05-24 23:09:27] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 3 ms.
[2024-05-24 23:09:27] [INFO ] Added : 12 causal constraints over 3 iterations in 18 ms. Result :sat
Minimization took 9 ms.
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using 7 positive place invariants in 3 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using state equation in 15 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 3 ms.
[2024-05-24 23:09:28] [INFO ] Solution in real domain found non-integer solution.
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 7 ms.
[2024-05-24 23:09:28] [INFO ] Added : 15 causal constraints over 3 iterations in 21 ms. Result :sat
Minimization took 8 ms.
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using state equation in 8 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 2 ms.
[2024-05-24 23:09:28] [INFO ] Solution in real domain found non-integer solution.
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 3 ms.
[2024-05-24 23:09:28] [INFO ] Added : 18 causal constraints over 4 iterations in 18 ms. Result :sat
Minimization took 7 ms.
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using state equation in 9 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 3 ms.
[2024-05-24 23:09:28] [INFO ] Solution in real domain found non-integer solution.
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 3 ms.
[2024-05-24 23:09:28] [INFO ] Added : 15 causal constraints over 4 iterations in 15 ms. Result :sat
Minimization took 9 ms.
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using 7 positive place invariants in 2 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 3 ms.
[2024-05-24 23:09:28] [INFO ] Solution in real domain found non-integer solution.
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using 7 positive place invariants in 1 ms returned sat
[2024-05-24 23:09:28] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2024-05-24 23:09:28] [INFO ] Computed and/alt/rep : 27/54/27 causal constraints (skipped 2 transitions) in 2 ms.
[2024-05-24 23:09:28] [INFO ] Added : 15 causal constraints over 4 iterations in 16 ms. Result :sat
Minimization took 8 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[21, 10, 3, 5, 5] Max Struct:[120, 80, 80, 120, 120]
FORMULA MAPK-PT-00160-UpperBounds-05 120 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA MAPK-PT-00160-UpperBounds-01 120 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA MAPK-PT-00160-UpperBounds-04 80 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA MAPK-PT-00160-UpperBounds-02 80 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[22] Max Struct:[120]
Support contains 1 out of 22 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 22/22 places, 30/30 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 22 transition count 29
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 3 rules applied. Total rules applied 3 place count 20 transition count 29
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 4 place count 20 transition count 28
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 1 with 18 rules applied. Total rules applied 22 place count 10 transition count 20
Drop transitions (Empty/Sink Transition effects.) removed 8 transitions
Reduce isomorphic transitions removed 8 transitions.
Graph (trivial) has 4 edges and 10 vertex of which 2 / 10 are part of one of the 1 SCC in 1 ms
Free SCC test removed 1 places
Iterating post reduction 1 with 9 rules applied. Total rules applied 31 place count 9 transition count 12
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Graph (trivial) has 4 edges and 8 vertex of which 3 / 8 are part of one of the 1 SCC in 0 ms
Free SCC test removed 2 places
Iterating post reduction 2 with 4 rules applied. Total rules applied 35 place count 6 transition count 10
Reduce places removed 1 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 3 with 5 rules applied. Total rules applied 40 place count 5 transition count 6
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 4 with 2 rules applied. Total rules applied 42 place count 4 transition count 5
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 43 place count 4 transition count 4
Free-agglomeration rule applied 1 times.
Iterating global reduction 5 with 1 rules applied. Total rules applied 44 place count 4 transition count 3
Ensure Unique test removed 1 places
Reduce places removed 2 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 5 with 3 rules applied. Total rules applied 47 place count 2 transition count 2
Applied a total of 47 rules in 44 ms. Remains 2 /22 variables (removed 20) and now considering 2/30 (removed 28) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 53 ms. Remains : 2/22 places, 2/30 transitions.
// Phase 1: matrix 2 rows 2 cols
[2024-05-24 23:09:28] [INFO ] Computed 1 invariants in 0 ms
Current structural bounds on expressions (after invariants) : Max Seen:[22] Max Struct:[120]
RANDOM walk for 1000011 steps (2 resets) in 106 ms. (9345 steps per ms)
FORMULA MAPK-PT-00160-UpperBounds-15 120 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 1000001 steps (2 resets) in 259 ms. (3846 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2024-05-24 23:09:29] [INFO ] Flatten gal took : 107 ms
[2024-05-24 23:09:29] [INFO ] Flatten gal took : 1 ms
[2024-05-24 23:09:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality15131214590835700991.gal : 2 ms
[2024-05-24 23:09:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality9207258556022200385.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/ReachabilityCardinality15131214590835700991.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality9207258556022200385.prop' '--nowitness' '--gen-order' 'FOLLOW'
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 2063 ms.
BK_STOP 1716592169493
--------------------
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
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -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 UpperBounds -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="MAPK-PT-00160"
export BK_EXAMINATION="UpperBounds"
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 MAPK-PT-00160, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r224-tall-171649612800445"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/MAPK-PT-00160.tgz
mv MAPK-PT-00160 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;