fond
Model Checking Contest 2022
12th edition, Bergen, Norway, June 21, 2022
Execution of r251-smll-165303244900055
Last Updated
Jun 22, 2022

About the Execution of 2021-gold for SmallOperatingSystem-PT-MT2048DC0512

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
266.976 9107.00 18828.00 454.50 2048 512 2048 512 2048 1024 1024 2048 1024 512 1024 512 512 1024 1024 1024 normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r251-smll-165303244900055.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2021
Input is SmallOperatingSystem-PT-MT2048DC0512, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r251-smll-165303244900055
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 292K
-rw-r--r-- 1 mcc users 9.7K Apr 30 10:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K Apr 30 10:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.6K Apr 30 10:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 75K Apr 30 10:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.4K May 9 09:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 9 09:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K May 9 09:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 9 09:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 2.0K May 9 09:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.1K May 9 09:05 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 13 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 8.1K May 10 09:34 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 SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-00
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-01
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-02
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-03
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-04
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-05
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-06
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-07
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-08
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-09
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-10
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-11
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-12
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-13
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-14
FORMULA_NAME SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1653065135284

Running Version 0
[2022-05-20 16:45:38] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-05-20 16:45:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-20 16:45:38] [INFO ] Load time of PNML (sax parser for PT used): 49 ms
[2022-05-20 16:45:38] [INFO ] Transformed 9 places.
[2022-05-20 16:45:38] [INFO ] Transformed 8 transitions.
[2022-05-20 16:45:38] [INFO ] Parsed PT model containing 9 places and 8 transitions in 139 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 16 ms.
// Phase 1: matrix 8 rows 9 cols
[2022-05-20 16:45:38] [INFO ] Computed 4 place invariants in 9 ms
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-14 1024 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-13 1024 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-12 512 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-10 1024 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-08 1024 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-04 2048 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-02 2048 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-00 2048 TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10261 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=570 ) properties (out of 8) seen :2048
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-01 512 TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 7) seen :235
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 21 ms. (steps per millisecond=476 ) properties (out of 7) seen :717
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 7) seen :723
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 23 ms. (steps per millisecond=434 ) properties (out of 7) seen :83
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 7) seen :226
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 18 ms. (steps per millisecond=555 ) properties (out of 7) seen :226
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 13 ms. (steps per millisecond=769 ) properties (out of 7) seen :711
// Phase 1: matrix 8 rows 9 cols
[2022-05-20 16:45:39] [INFO ] Computed 4 place invariants in 2 ms
[2022-05-20 16:45:39] [INFO ] [Real]Absence check using 4 positive place invariants in 15 ms returned sat
[2022-05-20 16:45:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:39] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2022-05-20 16:45:39] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 5 ms.
[2022-05-20 16:45:39] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:39] [INFO ] [Nat]Absence check using 4 positive place invariants in 4 ms returned sat
[2022-05-20 16:45:39] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:39] [INFO ] [Nat]Absence check using state equation in 29 ms returned sat
[2022-05-20 16:45:39] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 3 ms.
[2022-05-20 16:45:39] [INFO ] Added : 6 causal constraints over 2 iterations in 45 ms. Result :sat
Minimization took 39 ms.
[2022-05-20 16:45:39] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:39] [INFO ] [Real]Absence check using state equation in 32 ms returned sat
[2022-05-20 16:45:39] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-20 16:45:39] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:39] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2022-05-20 16:45:39] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:39] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2022-05-20 16:45:39] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 3 ms.
[2022-05-20 16:45:39] [INFO ] Added : 6 causal constraints over 3 iterations in 37 ms. Result :sat
Minimization took 14 ms.
[2022-05-20 16:45:39] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:39] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:39] [INFO ] [Real]Absence check using state equation in 19 ms returned sat
[2022-05-20 16:45:39] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-20 16:45:39] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:39] [INFO ] [Nat]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:39] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:39] [INFO ] [Nat]Absence check using state equation in 16 ms returned sat
[2022-05-20 16:45:39] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 9 ms.
[2022-05-20 16:45:39] [INFO ] Added : 6 causal constraints over 3 iterations in 43 ms. Result :sat
Minimization took 7 ms.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using 4 positive place invariants in 33 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 5 ms.
[2022-05-20 16:45:40] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-20 16:45:40] [INFO ] Added : 6 causal constraints over 2 iterations in 36 ms. Result :sat
Minimization took 7 ms.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using state equation in 11 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 3 ms.
[2022-05-20 16:45:40] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using state equation in 10 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 3 ms.
[2022-05-20 16:45:40] [INFO ] Added : 6 causal constraints over 2 iterations in 17 ms. Result :sat
Minimization took 8 ms.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using state equation in 17 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-20 16:45:40] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using 4 positive place invariants in 2 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using state equation in 8 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 4 ms.
[2022-05-20 16:45:40] [INFO ] Added : 6 causal constraints over 2 iterations in 20 ms. Result :sat
Minimization took 7 ms.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Real]Absence check using state equation in 12 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-20 16:45:40] [INFO ] Solution in real domain found non-integer solution.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using 4 positive place invariants in 3 ms returned sat
[2022-05-20 16:45:40] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-20 16:45:40] [INFO ] [Nat]Absence check using state equation in 12 ms returned sat
[2022-05-20 16:45:40] [INFO ] Computed and/alt/rep : 7/10/7 causal constraints (skipped 0 transitions) in 2 ms.
[2022-05-20 16:45:40] [INFO ] Added : 6 causal constraints over 3 iterations in 18 ms. Result :sat
Minimization took 6 ms.
Current structural bounds on expressions (after SMT) : [512, 1024, 1024, 2048, 512, 512, 1024] Max seen :[74, 512, 512, 80, 74, 74, 512]
Incomplete Parikh walk after 359000 steps, including 98 resets, run finished after 659 ms. (steps per millisecond=544 ) properties (out of 7) seen :3205 could not realise parikh vector
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-15 1024 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-06 1024 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-05 1024 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Incomplete Parikh walk after 256600 steps, including 99 resets, run finished after 358 ms. (steps per millisecond=716 ) properties (out of 4) seen :2048 could not realise parikh vector
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-11 512 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-09 512 TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-03 512 TECHNIQUES TOPOLOGICAL PARIKH_WALK
Incomplete Parikh walk after 256600 steps, including 99 resets, run finished after 296 ms. (steps per millisecond=866 ) properties (out of 1) seen :512 could not realise parikh vector
Incomplete Parikh walk after 819800 steps, including 99 resets, run finished after 777 ms. (steps per millisecond=1055 ) properties (out of 1) seen :2048 could not realise parikh vector
FORMULA SmallOperatingSystem-PT-MT2048DC0512-UpperBounds-07 2048 TECHNIQUES TOPOLOGICAL PARIKH_WALK
All properties solved without resorting to model-checking.

BK_STOP 1653065144391

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination UpperBounds -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="SmallOperatingSystem-PT-MT2048DC0512"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="gold2021"
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 2-4028"
echo " Executing tool gold2021"
echo " Input is SmallOperatingSystem-PT-MT2048DC0512, 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 r251-smll-165303244900055"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SmallOperatingSystem-PT-MT2048DC0512.tgz
mv SmallOperatingSystem-PT-MT2048DC0512 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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;