Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r508-tall-171654351200247.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool ltsminxred
Input is Murphy-COL-D1N010, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r508-tall-171654351200247
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 452K
-rw-r--r-- 1 mcc users 5.4K Apr 11 22:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 55K Apr 11 22:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Apr 11 22:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Apr 11 22:53 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K May 6 10:01 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 6 10:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K May 6 10:01 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K May 6 10:01 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 11 23:02 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 145K Apr 11 23:02 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Apr 11 23:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 67K Apr 11 23:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 6 10:01 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 6 10:01 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_pt
-rw-r--r-- 1 mcc users 7 May 18 16:43 instance
-rw-r--r-- 1 mcc users 5 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 20K May 18 16:43 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 Murphy-COL-D1N010-ReachabilityFireability-2024-00
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-01
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-02
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-03
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-04
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-05
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-06
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-07
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-08
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-09
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-10
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-11
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-12
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-13
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-14
FORMULA_NAME Murphy-COL-D1N010-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717235432198

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Murphy-COL-D1N010
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 09:50:33] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2024-06-01 09:50:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 09:50:33] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2024-06-01 09:50:33] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-06-01 09:50:33] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 546 ms
[2024-06-01 09:50:34] [INFO ] Imported 6 HL places and 7 HL transitions for a total of 12 PT places and 14.0 transition bindings in 16 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 20 ms.
Reduction of identical properties reduced properties to check from 16 to 14
Working with output stream class java.io.PrintStream
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-01 09:50:34] [INFO ] Built PT skeleton of HLPN with 6 places and 7 transitions 27 arcs in 4 ms.
[2024-06-01 09:50:34] [INFO ] Skeletonized 13 HLPN properties in 0 ms.
Remains 2 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
Initial state reduction rules removed 1 formulas.
RANDOM walk for 115 steps (0 resets) in 6 ms. (16 steps per ms) remains 0/1 properties
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2024-06-01 09:50:34] [INFO ] Flatten gal took : 13 ms
[2024-06-01 09:50:34] [INFO ] Flatten gal took : 1 ms
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
Arc [0:1*[(MOD (ADD $x 1) 2)]] contains successor/predecessor on variables of sort CD
[2024-06-01 09:50:34] [INFO ] Unfolded HLPN to a Petri net with 12 places and 14 transitions 54 arcs in 9 ms.
[2024-06-01 09:50:34] [INFO ] Unfolded 13 HLPN properties in 0 ms.
Initial state reduction rules removed 5 formulas.
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40017 steps (8 resets) in 730 ms. (54 steps per ms) remains 2/8 properties
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 764 ms. (52 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40003 steps (8 resets) in 274 ms. (145 steps per ms) remains 2/2 properties
// Phase 1: matrix 14 rows 12 cols
[2024-06-01 09:50:34] [INFO ] Computed 3 invariants in 7 ms
[2024-06-01 09:50:34] [INFO ] State equation strengthened by 4 read => feed constraints.
Problem Murphy-COL-D1N010-ReachabilityFireability-2024-01 is UNSAT
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-01 FALSE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/12 variables, 1/3 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 0/3 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 14/26 variables, 12/15 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/26 variables, 4/19 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/26 variables, 0/19 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 0/26 variables, 0/19 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 26/26 variables, and 19 constraints, problems are : Problem set: 1 solved, 1 unsolved in 308 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 12/12 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 2/2 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/12 variables, 2/2 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/12 variables, 1/3 constraints. Problems are: Problem set: 1 solved, 1 unsolved
[2024-06-01 09:50:35] [INFO ] Deduced a trap composed of 2 places in 43 ms of which 6 ms to minimize.
At refinement iteration 2 (INCLUDED_ONLY) 0/12 variables, 1/4 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/12 variables, 0/4 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 14/26 variables, 12/16 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/26 variables, 4/20 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/26 variables, 1/21 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/26 variables, 0/21 constraints. Problems are: Problem set: 1 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/26 variables, 0/21 constraints. Problems are: Problem set: 1 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 26/26 variables, and 21 constraints, problems are : Problem set: 1 solved, 1 unsolved in 121 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 12/12 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 1/2 constraints, Known Traps: 1/1 constraints]
After SMT, in 493ms problems are : Problem set: 1 solved, 1 unsolved
Parikh walk visited 0 properties in 11 ms.
Support contains 12 out of 12 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 12/12 places, 14/14 transitions.
Applied a total of 0 rules in 7 ms. Remains 12 /12 variables (removed 0) and now considering 14/14 (removed 0) transitions.
Running 8 sub problems to find dead transitions.
[2024-06-01 09:50:35] [INFO ] Invariant cache hit.
[2024-06-01 09:50:35] [INFO ] State equation strengthened by 4 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 2/10 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (OVERLAPS) 14/24 variables, 10/13 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 4/17 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/24 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (OVERLAPS) 2/26 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/26 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 8 unsolved
All remaining problems are real, not stopping.
At refinement iteration 9 (OVERLAPS) 0/26 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Real declared 26/26 variables, and 19 constraints, problems are : Problem set: 0 solved, 8 unsolved in 134 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 12/12 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 8 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/8 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/8 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 2 (OVERLAPS) 2/10 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/10 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 4 (OVERLAPS) 14/24 variables, 10/13 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/24 variables, 4/17 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/24 variables, 0/17 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 7 (OVERLAPS) 2/26 variables, 2/19 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/26 variables, 8/27 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/26 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 8 unsolved
At refinement iteration 10 (OVERLAPS) 0/26 variables, 0/27 constraints. Problems are: Problem set: 0 solved, 8 unsolved
No progress, stopping.
After SMT solving in domain Int declared 26/26 variables, and 27 constraints, problems are : Problem set: 0 solved, 8 unsolved in 97 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 12/12 constraints, ReadFeed: 4/4 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints]
After SMT, in 237ms problems are : Problem set: 0 solved, 8 unsolved
Search for dead transitions found 0 dead transitions in 238ms
Finished structural reductions in REACHABILITY mode , in 1 iterations and 256 ms. Remains : 12/12 places, 14/14 transitions.
RANDOM walk for 40012 steps (8 resets) in 125 ms. (317 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 137 ms. (289 steps per ms) remains 1/1 properties
Probably explored full state space saw : 39780 states, properties seen :0
Probabilistic random walk after 307764 steps, saw 39780 distinct states, run finished after 337 ms. (steps per millisecond=913 ) properties seen :0
Explored full state space saw : 39780 states, properties seen :0
Exhaustive walk after 307764 steps, saw 39780 distinct states, run finished after 175 ms. (steps per millisecond=1758 ) properties seen :0
FORMULA Murphy-COL-D1N010-ReachabilityFireability-2024-04 FALSE TECHNIQUES TOPOLOGICAL EXHAUSTIVE_WALK
All properties solved without resorting to model-checking.
Total runtime 2743 ms.
ITS solved all properties within timeout

BK_STOP 1717235436147

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML

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="Murphy-COL-D1N010"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="ltsminxred"
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 2-5568"
echo " Executing tool ltsminxred"
echo " Input is Murphy-COL-D1N010, 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 r508-tall-171654351200247"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Murphy-COL-D1N010.tgz
mv Murphy-COL-D1N010 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 ;