fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r051-ebro-158902546200463
Last Updated
Jun 28, 2020

About the Execution of ITS-Tools for DLCround-PT-03b

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15741.620 30873.00 46487.00 103.10 TTFFTTFTTFTFTTTF normal

Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2020-input.r051-ebro-158902546200463.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2020-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
........................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is DLCround-PT-03b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r051-ebro-158902546200463
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 616K
-rw-r--r-- 1 mcc users 4.3K Mar 30 18:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 30 18:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 29 08:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 29 08:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.9K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Apr 8 14:50 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 28 14:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 8 14:50 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 28 14:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.2K Mar 28 04:29 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Mar 28 04:29 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 26 22:59 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14K Mar 26 22:59 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 28 14:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 28 14:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 432K Mar 24 05:37 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 DLCround-PT-03b-ReachabilityFireability-00
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-01
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-02
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-03
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-04
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-05
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-06
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-07
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-08
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-09
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-10
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-11
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-12
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-13
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-14
FORMULA_NAME DLCround-PT-03b-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1589598282915

[2020-05-16 03:04:45] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -greatspnpath, /home/mcc/BenchKit//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2020-05-16 03:04:46] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-05-16 03:04:46] [INFO ] Load time of PNML (sax parser for PT used): 285 ms
[2020-05-16 03:04:46] [INFO ] Transformed 1383 places.
[2020-05-16 03:04:46] [INFO ] Transformed 1887 transitions.
[2020-05-16 03:04:46] [INFO ] Found NUPN structural information;
[2020-05-16 03:04:46] [INFO ] Parsed PT model containing 1383 places and 1887 transitions in 398 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 92 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 0 resets, run finished after 132 ms. (steps per millisecond=75 ) properties seen :[1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0]
FORMULA DLCround-PT-03b-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 45 ms. (steps per millisecond=222 ) properties seen :[0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 73 ms. (steps per millisecond=137 ) properties seen :[0, 1, 0, 0, 0, 0]
FORMULA DLCround-PT-03b-ReachabilityFireability-03 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 36 ms. (steps per millisecond=277 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 39 ms. (steps per millisecond=256 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 89 ms. (steps per millisecond=112 ) properties seen :[0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 38 ms. (steps per millisecond=263 ) properties seen :[0, 0, 0, 0, 0]
// Phase 1: matrix 1887 rows 1383 cols
[2020-05-16 03:04:47] [INFO ] Computed 52 place invariants in 90 ms
[2020-05-16 03:04:47] [INFO ] [Real]Absence check using 52 positive place invariants in 212 ms returned sat
[2020-05-16 03:04:47] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 03:04:52] [INFO ] [Real]Absence check using state equation in 4381 ms returned (error "Solver has unexpectedly terminated")
[2020-05-16 03:04:53] [INFO ] [Real]Absence check using 52 positive place invariants in 150 ms returned sat
[2020-05-16 03:04:53] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 03:04:57] [INFO ] SMT solver returned unknown. Retrying;
[2020-05-16 03:04:57] [INFO ] [Real]Absence check using state equation in 4156 ms returned (error "Failed to check-sat")
[2020-05-16 03:04:57] [INFO ] [Real]Absence check using 52 positive place invariants in 166 ms returned sat
[2020-05-16 03:04:57] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 03:05:02] [INFO ] SMT solver returned unknown. Retrying;
[2020-05-16 03:05:02] [INFO ] [Real]Absence check using state equation in 4516 ms returned (error "Failed to check-sat")
[2020-05-16 03:05:02] [INFO ] [Real]Absence check using 52 positive place invariants in 157 ms returned sat
[2020-05-16 03:05:02] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 03:05:07] [INFO ] [Real]Absence check using state equation in 4569 ms returned (error "Solver has unexpectedly terminated")
[2020-05-16 03:05:07] [INFO ] [Real]Absence check using 52 positive place invariants in 229 ms returned sat
[2020-05-16 03:05:07] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-05-16 03:05:12] [INFO ] SMT solver returned unknown. Retrying;
[2020-05-16 03:05:12] [INFO ] [Real]Absence check using state equation in 4544 ms returned (error "Failed to check-sat")
Support contains 25 out of 1383 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 1383/1383 places, 1887/1887 transitions.
Graph (trivial) has 1301 edges and 1383 vertex of which 235 / 1383 are part of one of the 19 SCC in 43 ms
Free SCC test removed 216 places
Drop transitions removed 242 transitions
Reduce isomorphic transitions removed 242 transitions.
Performed 581 Post agglomeration using F-continuation condition.Transition count delta: 581
Iterating post reduction 0 with 823 rules applied. Total rules applied 824 place count 1167 transition count 1064
Reduce places removed 581 places and 0 transitions.
Ensure Unique test removed 23 transitions
Reduce isomorphic transitions removed 23 transitions.
Performed 19 Post agglomeration using F-continuation condition.Transition count delta: 19
Iterating post reduction 1 with 623 rules applied. Total rules applied 1447 place count 586 transition count 1022
Reduce places removed 19 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 2 with 26 rules applied. Total rules applied 1473 place count 567 transition count 1015
Reduce places removed 3 places and 0 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 1476 place count 564 transition count 1015
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 14 Pre rules applied. Total rules applied 1476 place count 564 transition count 1001
Deduced a syphon composed of 14 places in 9 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 4 with 28 rules applied. Total rules applied 1504 place count 550 transition count 1001
Symmetric choice reduction at 4 with 144 rule applications. Total rules 1648 place count 550 transition count 1001
Deduced a syphon composed of 144 places in 6 ms
Reduce places removed 144 places and 144 transitions.
Iterating global reduction 4 with 288 rules applied. Total rules applied 1936 place count 406 transition count 857
Performed 53 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 53 Pre rules applied. Total rules applied 1936 place count 406 transition count 804
Deduced a syphon composed of 53 places in 6 ms
Reduce places removed 53 places and 0 transitions.
Iterating global reduction 4 with 106 rules applied. Total rules applied 2042 place count 353 transition count 804
Symmetric choice reduction at 4 with 25 rule applications. Total rules 2067 place count 353 transition count 804
Deduced a syphon composed of 25 places in 5 ms
Reduce places removed 25 places and 163 transitions.
Iterating global reduction 4 with 50 rules applied. Total rules applied 2117 place count 328 transition count 641
Ensure Unique test removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 4 with 9 rules applied. Total rules applied 2126 place count 328 transition count 632
Performed 87 Post agglomeration using F-continuation condition with reduction of 3 identical transitions.
Deduced a syphon composed of 87 places in 0 ms
Reduce places removed 87 places and 0 transitions.
Iterating global reduction 5 with 174 rules applied. Total rules applied 2300 place count 241 transition count 542
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 5 with 3 rules applied. Total rules applied 2303 place count 241 transition count 539
Symmetric choice reduction at 6 with 1 rule applications. Total rules 2304 place count 241 transition count 539
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 7 transitions.
Iterating global reduction 6 with 2 rules applied. Total rules applied 2306 place count 240 transition count 532
Performed 32 Post agglomeration using F-continuation condition with reduction of 16 identical transitions.
Deduced a syphon composed of 32 places in 1 ms
Reduce places removed 32 places and 0 transitions.
Iterating global reduction 6 with 64 rules applied. Total rules applied 2370 place count 208 transition count 722
Drop transitions removed 24 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 25 transitions.
Iterating post reduction 6 with 25 rules applied. Total rules applied 2395 place count 208 transition count 697
Free-agglomeration rule applied 86 times with reduction of 47 identical transitions.
Iterating global reduction 7 with 86 rules applied. Total rules applied 2481 place count 208 transition count 564
Reduce places removed 86 places and 0 transitions.
Drop transitions removed 139 transitions
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 155 transitions.
Iterating post reduction 7 with 241 rules applied. Total rules applied 2722 place count 122 transition count 409
Symmetric choice reduction at 8 with 2 rule applications. Total rules 2724 place count 122 transition count 409
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 14 transitions.
Iterating global reduction 8 with 4 rules applied. Total rules applied 2728 place count 120 transition count 395
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 2729 place count 120 transition count 394
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -13
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 9 with 2 rules applied. Total rules applied 2731 place count 119 transition count 407
Drop transitions removed 7 transitions
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 8 transitions.
Iterating post reduction 9 with 8 rules applied. Total rules applied 2739 place count 119 transition count 399
Free-agglomeration rule (complex) applied 1 times.
Iterating global reduction 10 with 1 rules applied. Total rules applied 2740 place count 119 transition count 404
Reduce places removed 1 places and 0 transitions.
Drop transitions removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 10 with 8 rules applied. Total rules applied 2748 place count 118 transition count 397
Partial Free-agglomeration rule applied 2 times.
Drop transitions removed 2 transitions
Iterating global reduction 11 with 2 rules applied. Total rules applied 2750 place count 118 transition count 397
Drop transitions removed 47 transitions
Redundant transition composition rules discarded 47 transitions
Iterating global reduction 11 with 47 rules applied. Total rules applied 2797 place count 118 transition count 350
Symmetric choice reduction at 11 with 1 rule applications. Total rules 2798 place count 118 transition count 350
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 7 transitions.
Iterating global reduction 11 with 2 rules applied. Total rules applied 2800 place count 117 transition count 343
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 11 with 1 rules applied. Total rules applied 2801 place count 117 transition count 342
Free-agglomeration rule applied 3 times.
Iterating global reduction 12 with 3 rules applied. Total rules applied 2804 place count 117 transition count 339
Reduce places removed 3 places and 0 transitions.
Drop transitions removed 11 transitions
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 12 with 17 rules applied. Total rules applied 2821 place count 114 transition count 325
Applied a total of 2821 rules in 872 ms. Remains 114 /1383 variables (removed 1269) and now considering 325/1887 (removed 1562) transitions.
Finished structural reductions, in 1 iterations. Remains : 114/1383 places, 325/1887 transitions.
Finished random walk after 22013 steps, including 0 resets, run visited all 5 properties in 157 ms. (steps per millisecond=140 )
FORMULA DLCround-PT-03b-ReachabilityFireability-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DLCround-PT-03b-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
All properties solved without resorting to model-checking.

BK_STOP 1589598313788

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination ReachabilityFireability -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6

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="DLCround-PT-03b"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 itstools"
echo " Input is DLCround-PT-03b, 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 r051-ebro-158902546200463"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DLCround-PT-03b.tgz
mv DLCround-PT-03b 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 ;