fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r184-oct2-158987928600479
Last Updated
Jun 28, 2020

About the Execution of ITS-LoLa for JoinFreeModules-PT-5000

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15738.750 3600000.00 206505.00 3493.70 TFFTFFFFTTTFTTFT normal

Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r184-oct2-158987928600479.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-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 itslola
Input is JoinFreeModules-PT-5000, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-oct2-158987928600479
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 29M
-rw-r--r-- 1 mcc users 3.8K Apr 8 12:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Apr 8 12:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Apr 7 16:11 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 7 16:11 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.7K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Apr 14 12:41 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Apr 28 14:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 14 12:41 LTLFireability.txt
-rw-r--r-- 1 mcc users 14K Apr 28 14:01 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K Apr 6 19:12 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K Apr 6 19:12 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Apr 6 02:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14K Apr 6 02:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 6 20:24 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 6 20:24 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 29M 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 JoinFreeModules-PT-5000-ReachabilityFireability-00
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-01
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-02
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-03
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-04
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-05
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-06
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-07
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-08
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-09
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-10
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-11
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-12
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-13
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-14
FORMULA_NAME JoinFreeModules-PT-5000-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1591210883784

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-03 19:01:28] [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, -timeout, 3600, -rebuildPNML]
[2020-06-03 19:01:28] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-03 19:01:29] [INFO ] Load time of PNML (sax parser for PT used): 1498 ms
[2020-06-03 19:01:29] [INFO ] Transformed 25001 places.
[2020-06-03 19:01:29] [INFO ] Transformed 40001 transitions.
[2020-06-03 19:01:29] [INFO ] Parsed PT model containing 25001 places and 40001 transitions in 1782 ms.
Reduce places removed 1 places and 0 transitions.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 414 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10002 steps, including 0 resets, run finished after 1899 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2096 ms. (steps per millisecond=4 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2107 ms. (steps per millisecond=4 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1903 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1684 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1922 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1881 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1948 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2140 ms. (steps per millisecond=4 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1896 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1712 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1610 ms. (steps per millisecond=6 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2668 ms. (steps per millisecond=3 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1759 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1786 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 1956 ms. (steps per millisecond=5 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2063 ms. (steps per millisecond=4 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Probabilistic random walk after 82024 steps, saw 9 distinct states, run finished after 34917 ms. (steps per millisecond=2 ) properties seen :[1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1]
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
// Phase 1: matrix 40001 rows 25000 cols
[2020-06-03 19:02:44] [INFO ] Computed 5000 place invariants in 4974 ms
[2020-06-03 19:02:50] [INFO ] [Real]Absence check using 5000 positive place invariants in 2011 ms returned (error "Solver has unexpectedly terminated")
[2020-06-03 19:02:50] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:02:50] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 0
[2020-06-03 19:02:55] [INFO ] [Real]Absence check using 5000 positive place invariants in 2474 ms returned (error "Failed to check-sat")
[2020-06-03 19:02:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:02:55] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Broken pipe") while checking expression at index 1
[2020-06-03 19:03:00] [INFO ] [Real]Absence check using 5000 positive place invariants in 2596 ms returned sat
[2020-06-03 19:03:00] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:00] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 2
[2020-06-03 19:03:05] [INFO ] [Real]Absence check using 5000 positive place invariants in 2847 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:05] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 3
[2020-06-03 19:03:10] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:10] [INFO ] [Real]Absence check using 5000 positive place invariants in 3456 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:10] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:10] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 4
[2020-06-03 19:03:15] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:15] [INFO ] [Real]Absence check using 5000 positive place invariants in 3339 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:15] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:15] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 5
[2020-06-03 19:03:20] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:20] [INFO ] [Real]Absence check using 5000 positive place invariants in 2783 ms returned unknown
[2020-06-03 19:03:25] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:25] [INFO ] [Real]Absence check using 5000 positive place invariants in 3348 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:25] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:25] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 7
[2020-06-03 19:03:30] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:30] [INFO ] [Real]Absence check using 5000 positive place invariants in 3401 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:30] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:31] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 8
[2020-06-03 19:03:36] [INFO ] [Real]Absence check using 5000 positive place invariants in 1420 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:36] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:36] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 9
[2020-06-03 19:03:41] [INFO ] [Real]Absence check using 5000 positive place invariants in 2583 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:41] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:41] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 10
[2020-06-03 19:03:46] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:46] [INFO ] [Real]Absence check using 5000 positive place invariants in 2246 ms returned unknown
[2020-06-03 19:03:51] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 19:03:51] [INFO ] [Real]Absence check using 5000 positive place invariants in 3332 ms returned (error "Failed to check-sat")
[2020-06-03 19:03:51] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 19:03:51] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed") while checking expression at index 12
Support contains 46 out of 25000 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 25000/25000 places, 40001/40001 transitions.
Discarding 24775 places :
Also discarding 39640 output transitions
Drop transitions removed 39640 transitions
Graph (complete) has 60000 edges and 25000 vertex of which 225 are kept as prefixes of interest. Removing 24775 places using SCC suffix rule.264 ms
Drop transitions removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 0 with 1 rules applied. Total rules applied 2 place count 225 transition count 360
Applied a total of 2 rules in 386 ms. Remains 225 /25000 variables (removed 24775) and now considering 360/40001 (removed 39641) transitions.
// Phase 1: matrix 360 rows 225 cols
[2020-06-03 19:03:51] [INFO ] Computed 45 place invariants in 2 ms
[2020-06-03 19:03:52] [INFO ] Dead Transitions using invariants and state equation in 372 ms returned []
Finished structural reductions, in 1 iterations. Remains : 225/25000 places, 360/40001 transitions.
Incomplete random walk after 1000952 steps, including 0 resets, run finished after 1751 ms. (steps per millisecond=571 ) properties seen :[1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1]
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Finished Best-First random walk after 108638 steps, including 0 resets, run visited all 1 properties in 330 ms. (steps per millisecond=329 )
FORMULA JoinFreeModules-PT-5000-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
All properties solved without resorting to model-checking.

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

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="JoinFreeModules-PT-5000"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itslola"
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 itslola"
echo " Input is JoinFreeModules-PT-5000, 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 r184-oct2-158987928600479"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/JoinFreeModules-PT-5000.tgz
mv JoinFreeModules-PT-5000 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 ;