fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r184-oct2-158987928600471
Last Updated
Jun 28, 2020

About the Execution of ITS-LoLa for JoinFreeModules-PT-2000

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15742.360 3600000.00 139566.00 1436.60 TFFTTFTFTTFFFFFF 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-oct2-158987928600471.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-2000, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-oct2-158987928600471
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 12M
-rw-r--r-- 1 mcc users 3.3K Apr 8 03:39 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K Apr 8 03:39 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Apr 7 06:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 7 06:51 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 3.3K 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 2.2K Apr 14 12:41 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 28 14:01 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.3K Apr 6 11:19 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Apr 6 11:19 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Apr 5 17:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 5 17:56 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 12M 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-2000-ReachabilityFireability-00
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-01
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-02
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-03
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-04
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-05
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-06
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-07
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-08
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-09
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-10
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-11
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-12
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-13
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-14
FORMULA_NAME JoinFreeModules-PT-2000-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1591210484014

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-03 18:54:46] [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 18:54:46] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-03 18:54:47] [INFO ] Load time of PNML (sax parser for PT used): 579 ms
[2020-06-03 18:54:47] [INFO ] Transformed 10001 places.
[2020-06-03 18:54:47] [INFO ] Transformed 16001 transitions.
[2020-06-03 18:54:47] [INFO ] Parsed PT model containing 10001 places and 16001 transitions in 701 ms.
Reduce places removed 1 places and 0 transitions.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 105 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10006 steps, including 0 resets, run finished after 762 ms. (steps per millisecond=13 ) 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 942 ms. (steps per millisecond=10 ) 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 863 ms. (steps per millisecond=11 ) properties seen :[0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 806 ms. (steps per millisecond=12 ) properties seen :[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 739 ms. (steps per millisecond=13 ) properties seen :[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 866 ms. (steps per millisecond=11 ) properties seen :[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 871 ms. (steps per millisecond=11 ) properties seen :[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 727 ms. (steps per millisecond=13 ) properties seen :[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 667 ms. (steps per millisecond=14 ) properties seen :[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 732 ms. (steps per millisecond=13 ) properties seen :[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 797 ms. (steps per millisecond=12 ) properties seen :[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 852 ms. (steps per millisecond=11 ) properties seen :[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 824 ms. (steps per millisecond=12 ) properties seen :[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 702 ms. (steps per millisecond=14 ) properties seen :[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 667 ms. (steps per millisecond=14 ) properties seen :[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 683 ms. (steps per millisecond=14 ) properties seen :[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 719 ms. (steps per millisecond=13 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
// Phase 1: matrix 16001 rows 10000 cols
[2020-06-03 18:55:00] [INFO ] Computed 2000 place invariants in 301 ms
[2020-06-03 18:55:05] [INFO ] [Real]Absence check using 2000 positive place invariants in 3982 ms returned (error "Solver has unexpectedly terminated")
[2020-06-03 18:55:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:06] [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 18:55:11] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 18:55:11] [INFO ] [Real]Absence check using 2000 positive place invariants in 4331 ms returned (error "Failed to check-sat")
[2020-06-03 18:55:11] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:11] [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 1
[2020-06-03 18:55:16] [INFO ] [Real]Absence check using 2000 positive place invariants in 4352 ms returned (error "Failed to check-sat")
[2020-06-03 18:55:16] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:16] [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 18:55:21] [INFO ] [Real]Absence check using 2000 positive place invariants in 4037 ms returned (error "Failed to check-sat")
[2020-06-03 18:55:21] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:21] [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 18:55:26] [INFO ] [Real]Absence check using 2000 positive place invariants in 4359 ms returned (error "Solver has unexpectedly terminated")
[2020-06-03 18:55:26] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:26] [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 18:55:31] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 18:55:31] [INFO ] [Real]Absence check using 2000 positive place invariants in 3755 ms returned (error "Failed to check-sat")
[2020-06-03 18:55:31] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:31] [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: Broken pipe") while checking expression at index 5
[2020-06-03 18:55:36] [INFO ] [Real]Absence check using 2000 positive place invariants in 4045 ms returned sat
[2020-06-03 18:55:36] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:55:36] [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 6
[2020-06-03 18:55:41] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Stream closed (= 2003 (+ s8615 s8616 s8617 s8618 s8619))") while checking expression at index 7
[2020-06-03 18:55:46] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe (= 2003 (+ s6690 s6691 s6692 s6693 s6694))") while checking expression at index 8
[2020-06-03 18:55:51] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe (= 2003 (+ s1685 s1686 s1687 s1688 s1689))") while checking expression at index 9
[2020-06-03 18:55:56] [WARNING] SMT solver failed with error :java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Failed to assert expression: java.io.IOException: Broken pipe (= 2003 (+ s5170 s5171 s5172 s5173 s5174))") while checking expression at index 10
[2020-06-03 18:56:01] [INFO ] [Real]Absence check using 2000 positive place invariants in 3522 ms returned (error "Solver has unexpectedly terminated")
[2020-06-03 18:56:01] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:56:01] [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 11
[2020-06-03 18:56:06] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 18:56:06] [INFO ] [Real]Absence check using 2000 positive place invariants in 3980 ms returned (error "Failed to check-sat")
[2020-06-03 18:56:06] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:56:06] [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 12
[2020-06-03 18:56:11] [INFO ] [Real]Absence check using 2000 positive place invariants in 3599 ms returned (error "Solver has unexpectedly terminated")
[2020-06-03 18:56:11] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:56:11] [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 13
[2020-06-03 18:56:16] [INFO ] SMT solver returned unknown. Retrying;
[2020-06-03 18:56:16] [INFO ] [Real]Absence check using 2000 positive place invariants in 3603 ms returned (error "Failed to check-sat")
[2020-06-03 18:56:16] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2020-06-03 18:56:16] [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 14
Support contains 55 out of 10000 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 10000/10000 places, 16001/16001 transitions.
Discarding 9725 places :
Also discarding 15560 output transitions
Drop transitions removed 15560 transitions
Graph (complete) has 24000 edges and 10000 vertex of which 275 are kept as prefixes of interest. Removing 9725 places using SCC suffix rule.168 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 275 transition count 440
Applied a total of 2 rules in 278 ms. Remains 275 /10000 variables (removed 9725) and now considering 440/16001 (removed 15561) transitions.
// Phase 1: matrix 440 rows 275 cols
[2020-06-03 18:56:17] [INFO ] Computed 55 place invariants in 2 ms
[2020-06-03 18:56:21] [INFO ] Dead Transitions using invariants and state equation in 4826 ms returned []
Finished structural reductions, in 1 iterations. Remains : 275/10000 places, 440/16001 transitions.
Finished random walk after 504518 steps, including 0 resets, run visited all 15 properties in 1209 ms. (steps per millisecond=417 )
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA JoinFreeModules-PT-2000-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_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-2000"
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-2000, 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-oct2-158987928600471"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/JoinFreeModules-PT-2000.tgz
mv JoinFreeModules-PT-2000 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 ;