fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r217-smll-167840358900078
Last Updated
May 14, 2023

About the Execution of Smart+red for GPUForwardProgress-PT-32b

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
349.455 67387.00 108122.00 708.10 F normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r217-smll-167840358900078.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool smartxred
Input is GPUForwardProgress-PT-32b, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r217-smll-167840358900078
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 488K
-rw-r--r-- 1 mcc users 6.6K Feb 25 14:09 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K Feb 25 14:09 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K Feb 25 14:08 CTLFireability.txt
-rw-r--r-- 1 mcc users 36K Feb 25 14:08 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.1K Feb 25 14:09 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 53K Feb 25 14:09 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.9K Feb 25 14:09 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Feb 25 14:09 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 16:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:12 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 160K Mar 5 18:22 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1678623927865

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=smartxred
BK_EXAMINATION=StableMarking
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=GPUForwardProgress-PT-32b
Applying reductions before tool smart
Invoking reducer
Running Version 202303021504
[2023-03-12 12:25:30] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -timeout, 180, -rebuildPNML]
[2023-03-12 12:25:30] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-12 12:25:30] [INFO ] Load time of PNML (sax parser for PT used): 133 ms
[2023-03-12 12:25:30] [INFO ] Transformed 644 places.
[2023-03-12 12:25:30] [INFO ] Transformed 677 transitions.
[2023-03-12 12:25:30] [INFO ] Found NUPN structural information;
[2023-03-12 12:25:30] [INFO ] Parsed PT model containing 644 places and 677 transitions and 1677 arcs in 251 ms.
Graph (trivial) has 578 edges and 644 vertex of which 7 / 644 are part of one of the 1 SCC in 10 ms
Free SCC test removed 6 places
Structural test allowed to assert that 305 places are NOT stable. Took 23 ms.
Ensure Unique test removed 7 transitions
Reduce redundant transitions removed 7 transitions.
Incomplete random walk after 10000 steps, including 37 resets, run finished after 1197 ms. (steps per millisecond=8 ) properties (out of 339) seen :24
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=20 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 315) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 315) seen :0
Interrupted probabilistic random walk after 79875 steps, run timeout after 3002 ms. (steps per millisecond=26 ) properties seen :{0=1, 1=1, 2=1, 5=1, 6=1, 8=1, 9=1, 10=1, 11=1, 12=1, 13=1, 14=1, 15=1, 16=1, 18=1, 19=1, 20=1, 21=1, 22=1, 25=1, 26=1, 28=1, 29=1, 30=1, 31=1, 32=1, 33=1, 34=1, 35=1, 36=1, 38=1, 39=1, 40=1, 41=1, 42=1, 45=1, 46=1, 48=1, 49=1, 50=1, 51=1, 52=1, 53=1, 54=1, 55=1, 56=1, 58=1, 59=1, 60=1, 61=1, 62=1, 65=1, 66=1, 68=1, 69=1, 70=1, 71=1, 72=1, 73=1, 74=1, 75=1, 76=1, 78=1, 79=1, 80=1, 81=1, 82=1, 85=1, 86=1, 88=1, 89=1, 90=1, 91=1, 92=1, 93=1, 94=1, 95=1, 96=1, 98=1, 99=1, 109=1, 110=1, 111=1, 112=1, 113=1, 114=1, 115=1, 116=1, 118=1, 119=1, 129=1, 130=1, 131=1, 132=1, 133=1, 134=1, 135=1, 136=1, 138=1, 139=1, 149=1, 150=1, 151=1, 152=1, 153=1, 154=1, 155=1, 156=1, 158=1, 159=1, 169=1, 170=1, 171=1, 172=1, 173=1, 174=1, 175=1, 176=1, 178=1, 179=1, 189=1, 190=1, 191=1, 192=1, 193=1, 194=1, 195=1, 196=1, 198=1, 199=1, 209=1, 210=1, 211=1, 212=1, 213=1, 214=1, 215=1, 216=1, 218=1, 219=1, 225=1, 226=1, 227=1, 228=1, 229=1, 230=1, 231=1, 233=1, 234=1, 244=1, 245=1, 246=1, 247=1, 248=1, 249=1, 250=1, 251=1, 253=1, 254=1, 264=1, 265=1, 266=1, 267=1, 268=1, 269=1, 270=1, 271=1, 273=1, 274=1, 284=1, 285=1, 286=1, 287=1, 288=1, 289=1, 290=1, 291=1, 293=1, 294=1, 298=1, 299=1, 300=1, 301=1, 302=1, 306=1, 312=1, 313=1, 314=1}
Probabilistic random walk after 79875 steps, saw 47130 distinct states, run finished after 3005 ms. (steps per millisecond=26 ) properties seen :188
Running SMT prover for 127 properties.
// Phase 1: matrix 670 rows 638 cols
[2023-03-12 12:25:35] [INFO ] Computed 34 place invariants in 26 ms
[2023-03-12 12:25:38] [INFO ] After 2913ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:127
[2023-03-12 12:25:40] [INFO ] [Nat]Absence check using 0 positive and 34 generalized place invariants in 41 ms returned sat
[2023-03-12 12:25:46] [INFO ] After 4671ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :127
[2023-03-12 12:25:46] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-12 12:25:51] [INFO ] After 4334ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :127
[2023-03-12 12:25:58] [INFO ] After 12036ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :127
Attempting to minimize the solution found.
Minimization took 4458 ms.
[2023-03-12 12:26:03] [INFO ] After 24856ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :127
Fused 127 Parikh solutions to 98 different solutions.
Parikh walk visited 117 properties in 30470 ms.
Support contains 10 out of 638 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 638/638 places, 670/670 transitions.
Drop transitions removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions removed 363 transitions
Trivial Post-agglo rules discarded 363 transitions
Performed 363 trivial Post agglomeration. Transition count delta: 363
Iterating post reduction 0 with 364 rules applied. Total rules applied 364 place count 638 transition count 306
Reduce places removed 363 places and 0 transitions.
Ensure Unique test removed 33 transitions
Reduce isomorphic transitions removed 33 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 397 rules applied. Total rules applied 761 place count 275 transition count 272
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 762 place count 274 transition count 272
Performed 65 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 65 Pre rules applied. Total rules applied 762 place count 274 transition count 207
Deduced a syphon composed of 65 places in 1 ms
Reduce places removed 65 places and 0 transitions.
Iterating global reduction 3 with 130 rules applied. Total rules applied 892 place count 209 transition count 207
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 895 place count 206 transition count 204
Iterating global reduction 3 with 3 rules applied. Total rules applied 898 place count 206 transition count 204
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 898 place count 206 transition count 203
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 900 place count 205 transition count 203
Performed 97 Post agglomeration using F-continuation condition.Transition count delta: 97
Deduced a syphon composed of 97 places in 0 ms
Reduce places removed 97 places and 0 transitions.
Iterating global reduction 3 with 194 rules applied. Total rules applied 1094 place count 108 transition count 106
Drop transitions removed 32 transitions
Reduce isomorphic transitions removed 32 transitions.
Iterating post reduction 3 with 32 rules applied. Total rules applied 1126 place count 108 transition count 74
Free-agglomeration rule applied 2 times.
Iterating global reduction 4 with 2 rules applied. Total rules applied 1128 place count 108 transition count 72
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 1130 place count 106 transition count 72
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 1131 place count 105 transition count 71
Applied a total of 1131 rules in 153 ms. Remains 105 /638 variables (removed 533) and now considering 71/670 (removed 599) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 153 ms. Remains : 105/638 places, 71/670 transitions.
Finished random walk after 1170 steps, including 74 resets, run visited all 10 properties in 15 ms. (steps per millisecond=78 )
Able to resolve query StableMarking after proving 341 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK PROBABILISTIC_WALK PARIKH_WALK MARKED_SUFFIX_TEST TRIVIAL_UNMARKED_SCC_TEST TOPOLOGICAL
Total runtime 63320 ms.
ITS solved all properties within timeout

BK_STOP 1678623995252

--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination StableMarking -timeout 180 -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="GPUForwardProgress-PT-32b"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="smartxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 2-5348"
echo " Executing tool smartxred"
echo " Input is GPUForwardProgress-PT-32b, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r217-smll-167840358900078"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/GPUForwardProgress-PT-32b.tgz
mv GPUForwardProgress-PT-32b execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property StableMarking.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;