fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r485-tall-167912699300406
Last Updated
May 14, 2023

About the Execution of ITS-Tools for Szymanski-PT-a02

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
232.892 4026.00 7909.00 337.20 FTFFTFTFFTTFTFTF normal

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.r485-tall-167912699300406.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 itstools
Input is Szymanski-PT-a02, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r485-tall-167912699300406
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 556K
-rw-r--r-- 1 mcc users 7.4K Feb 26 16:57 CTLCardinality.txt
-rw-r--r-- 1 mcc users 85K Feb 26 16:57 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.9K Feb 26 16:55 CTLFireability.txt
-rw-r--r-- 1 mcc users 29K Feb 26 16:55 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Feb 25 17:18 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 17:18 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 17:18 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 17:18 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 26 16:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 137K Feb 26 16:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.7K Feb 26 16:57 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 76K Feb 26 16:57 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 17:18 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 101K 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 Szymanski-PT-a02-ReachabilityCardinality-00
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-01
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-02
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-03
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-04
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-05
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-06
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-07
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-08
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-09
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-10
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-11
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-12
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-13
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-14
FORMULA_NAME Szymanski-PT-a02-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1679220386753

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=Szymanski-PT-a02
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202303021504
[2023-03-19 10:06:28] [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]
[2023-03-19 10:06:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-19 10:06:28] [INFO ] Load time of PNML (sax parser for PT used): 52 ms
[2023-03-19 10:06:28] [INFO ] Transformed 61 places.
[2023-03-19 10:06:28] [INFO ] Transformed 224 transitions.
[2023-03-19 10:06:28] [INFO ] Parsed PT model containing 61 places and 224 transitions and 900 arcs in 119 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 17 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 12 places in 1 ms
Reduce places removed 12 places and 8 transitions.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a02-ReachabilityCardinality-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a02-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a02-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a02-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-a02-ReachabilityCardinality-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 10:06:28] [INFO ] Flatten gal took : 41 ms
[2023-03-19 10:06:28] [INFO ] Flatten gal took : 20 ms
[2023-03-19 10:06:28] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13684728395016232040.gal : 13 ms
[2023-03-19 10:06:28] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17393246553592835394.prop : 6 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/ReachabilityCardinality13684728395016232040.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17393246553592835394.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 ...330
Loading property file /tmp/ReachabilityCardinality17393246553592835394.prop.
Incomplete random walk after 10000 steps, including 23 resets, run finished after 387 ms. (steps per millisecond=25 ) properties (out of 10) seen :4
FORMULA Szymanski-PT-a02-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Szymanski-PT-a02-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Szymanski-PT-a02-ReachabilityCardinality-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Szymanski-PT-a02-ReachabilityCardinality-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
SDD proceeding with computation,10 properties remain. new max is 4
SDD size :1 after 10
SDD proceeding with computation,10 properties remain. new max is 8
SDD size :10 after 34
SDD proceeding with computation,10 properties remain. new max is 16
SDD size :34 after 116
Reachability property Szymanski-PT-a02-ReachabilityCardinality-04 is true.
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :116 after 222
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :222 after 286
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :286 after 645
Invariant property Szymanski-PT-a02-ReachabilityCardinality-02 does not hold.
SDD proceeding with computation,8 properties remain. new max is 64
SDD size :645 after 13191
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :13191 after 14407
Reachability property Szymanski-PT-a02-ReachabilityCardinality-12 is true.
Invariant property Szymanski-PT-a02-ReachabilityCardinality-08 does not hold.
SDD proceeding with computation,6 properties remain. new max is 128
SDD size :47014 after 49262
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,62187,0.099917,6584,2,608,19,11944,12,0,489,7137,0
Total reachable state count : 62187

Verifying 10 reachability properties.
Reachability property Szymanski-PT-a02-ReachabilityCardinality-00 does not hold.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : Szymanski-PT-a02-ReachabilityCardinality-00

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-00,0,0.100609,6584,1,0,19,11944,12,0,490,7137,0
Invariant property Szymanski-PT-a02-ReachabilityCardinality-02 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-02,16,0.101315,6848,2,75,19,11944,13,0,509,7137,0
Reachability property Szymanski-PT-a02-ReachabilityCardinality-03 does not hold.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-03 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : Szymanski-PT-a02-ReachabilityCardinality-03

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-03,0,0.102452,6848,1,0,19,11944,13,0,530,7137,0
Reachability property Szymanski-PT-a02-ReachabilityCardinality-04 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-04,1,0.102619,6848,2,50,19,11944,14,0,532,7137,0
Reachability property Szymanski-PT-a02-ReachabilityCardinality-05 does not hold.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : Szymanski-PT-a02-ReachabilityCardinality-05

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-05,0,0.104049,6848,1,0,19,11944,14,0,535,7137,0
Reachability property Szymanski-PT-a02-ReachabilityCardinality-07 does not hold.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : Szymanski-PT-a02-ReachabilityCardinality-07

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-07,0,0.104813,6848,1,0,19,11944,14,0,550,7137,0
Invariant property Szymanski-PT-a02-ReachabilityCardinality-08 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-08,323,0.104968,6848,2,132,19,11944,15,0,552,7137,0
Reachability property Szymanski-PT-a02-ReachabilityCardinality-12 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-12,306,0.105104,6848,2,111,19,11944,16,0,554,7137,0
Invariant property Szymanski-PT-a02-ReachabilityCardinality-14 is true.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-14,0,0.105271,6848,1,0,19,11944,16,0,554,7137,0
Reachability property Szymanski-PT-a02-ReachabilityCardinality-15 does not hold.
FORMULA Szymanski-PT-a02-ReachabilityCardinality-15 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : Szymanski-PT-a02-ReachabilityCardinality-15

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Szymanski-PT-a02-ReachabilityCardinality-15,0,0.105741,6848,1,0,19,11944,16,0,554,7137,0
ITS tools runner thread asked to quit. Dying gracefully.
Incomplete Best-First random walk after 10001 steps, including 9 resets, run finished after 88 ms. (steps per millisecond=113 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 114 ms. (steps per millisecond=87 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 79 ms. (steps per millisecond=126 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 7 resets, run finished after 56 ms. (steps per millisecond=178 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 6) seen :0
Running SMT prover for 6 properties.
[2023-03-19 10:06:29] [INFO ] Flow matrix only has 79 transitions (discarded 137 similar events)
// Phase 1: matrix 79 rows 49 cols
[2023-03-19 10:06:29] [INFO ] Computed 3 place invariants in 4 ms
[2023-03-19 10:06:29] [INFO ] [Real]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-03-19 10:06:29] [INFO ] [Real]Absence check using 2 positive and 1 generalized place invariants in 1 ms returned sat
[2023-03-19 10:06:29] [INFO ] After 373ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0 real:5
[2023-03-19 10:06:29] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-03-19 10:06:29] [INFO ] [Nat]Absence check using 2 positive and 1 generalized place invariants in 0 ms returned sat
[2023-03-19 10:06:29] [INFO ] After 101ms SMT Verify possible using all constraints in natural domain returned unsat :6 sat :0
Fused 6 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 1 ms.
All properties solved without resorting to model-checking.
Total runtime 1615 ms.

BK_STOP 1679220390779

--------------------
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="Szymanski-PT-a02"
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 Szymanski-PT-a02, 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 r485-tall-167912699300406"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Szymanski-PT-a02.tgz
mv Szymanski-PT-a02 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 ;