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.r329-tall-167889201500038.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 ltsminxred
Input is RERS17pb113-PT-5, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r329-tall-167889201500038
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 15M
-rw-r--r-- 1 mcc users 7.5K Feb 26 18:17 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Feb 26 18:17 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.2K Feb 26 18:15 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K Feb 26 18:15 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:37 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Feb 25 16:37 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 25 16:37 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:37 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 26 18:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 112K Feb 26 18:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14K Feb 26 18:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 88K Feb 26 18:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:37 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:37 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 2 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 15M Mar 5 18:23 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 RERS17pb113-PT-5-ReachabilityCardinality-00
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-01
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-02
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-03
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-04
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-05
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-06
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-07
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-08
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-09
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-10
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-11
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-12
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-13
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-14
FORMULA_NAME RERS17pb113-PT-5-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1678992625599

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=ltsminxred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=RERS17pb113-PT-5
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-16 18:50:27] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2023-03-16 18:50:27] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-16 18:50:27] [INFO ] Load time of PNML (sax parser for PT used): 586 ms
[2023-03-16 18:50:27] [INFO ] Transformed 639 places.
[2023-03-16 18:50:28] [INFO ] Transformed 31353 transitions.
[2023-03-16 18:50:28] [INFO ] Parsed PT model containing 639 places and 31353 transitions and 125418 arcs in 785 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 17 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 2 resets, run finished after 853 ms. (steps per millisecond=11 ) properties (out of 16) seen :8
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-03 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 87 ms. (steps per millisecond=114 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 48 ms. (steps per millisecond=208 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 92 ms. (steps per millisecond=108 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 8) seen :0
Running SMT prover for 8 properties.
[2023-03-16 18:50:29] [INFO ] Flow matrix only has 18326 transitions (discarded 13027 similar events)
// Phase 1: matrix 18326 rows 639 cols
[2023-03-16 18:50:29] [INFO ] Computed 25 place invariants in 101 ms
[2023-03-16 18:50:30] [INFO ] After 371ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:8
[2023-03-16 18:50:30] [INFO ] [Nat]Absence check using 13 positive place invariants in 10 ms returned sat
[2023-03-16 18:50:30] [INFO ] [Nat]Absence check using 13 positive and 12 generalized place invariants in 22 ms returned sat
[2023-03-16 18:50:45] [INFO ] After 14783ms SMT Verify possible using state equation in natural domain returned unsat :2 sat :6
[2023-03-16 18:50:45] [INFO ] State equation strengthened by 829 read => feed constraints.
[2023-03-16 18:50:55] [INFO ] After 9641ms SMT Verify possible using 829 Read/Feed constraints in natural domain returned unsat :2 sat :5
[2023-03-16 18:50:55] [INFO ] After 9643ms SMT Verify possible using trap constraints in natural domain returned unsat :2 sat :5
Attempting to minimize the solution found.
Minimization took 8 ms.
[2023-03-16 18:50:55] [INFO ] After 25060ms SMT Verify possible using all constraints in natural domain returned unsat :2 sat :5
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-08 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 8 Parikh solutions to 6 different solutions.
Parikh walk visited 0 properties in 3320 ms.
Support contains 141 out of 639 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 639/639 places, 31353/31353 transitions.
Ensure Unique test removed 12 places
Iterating post reduction 0 with 12 rules applied. Total rules applied 12 place count 627 transition count 31353
Applied a total of 12 rules in 345 ms. Remains 627 /639 variables (removed 12) and now considering 31353/31353 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 351 ms. Remains : 627/639 places, 31353/31353 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 349 ms. (steps per millisecond=28 ) properties (out of 6) seen :2
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA RERS17pb113-PT-5-ReachabilityCardinality-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 58 ms. (steps per millisecond=172 ) properties (out of 4) seen :0
Running SMT prover for 4 properties.
[2023-03-16 18:50:59] [INFO ] Flow matrix only has 18326 transitions (discarded 13027 similar events)
// Phase 1: matrix 18326 rows 627 cols
[2023-03-16 18:50:59] [INFO ] Computed 13 place invariants in 67 ms
[2023-03-16 18:51:00] [INFO ] After 117ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2023-03-16 18:51:00] [INFO ] [Nat]Absence check using 13 positive place invariants in 6 ms returned sat
[2023-03-16 18:51:14] [INFO ] After 13844ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2023-03-16 18:51:14] [INFO ] State equation strengthened by 829 read => feed constraints.
[2023-03-16 18:51:25] [INFO ] After 10658ms SMT Verify possible using 829 Read/Feed constraints in natural domain returned unsat :0 sat :2
[2023-03-16 18:51:25] [INFO ] After 10660ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :2
Attempting to minimize the solution found.
Minimization took 13 ms.
[2023-03-16 18:51:25] [INFO ] After 25050ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :2
Parikh walk visited 0 properties in 14 ms.
Support contains 140 out of 627 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 627/627 places, 31353/31353 transitions.
Applied a total of 0 rules in 278 ms. Remains 627 /627 variables (removed 0) and now considering 31353/31353 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 278 ms. Remains : 627/627 places, 31353/31353 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 397 ms. (steps per millisecond=25 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 44 ms. (steps per millisecond=227 ) properties (out of 4) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 55 ms. (steps per millisecond=181 ) properties (out of 4) seen :0
Interrupted probabilistic random walk after 22321 steps, run timeout after 3001 ms. (steps per millisecond=7 ) properties seen :{}
Probabilistic random walk after 22321 steps, saw 20164 distinct states, run finished after 3003 ms. (steps per millisecond=7 ) properties seen :0
Running SMT prover for 4 properties.
[2023-03-16 18:51:29] [INFO ] Flow matrix only has 18326 transitions (discarded 13027 similar events)
[2023-03-16 18:51:29] [INFO ] Invariant cache hit.
[2023-03-16 18:51:29] [INFO ] After 113ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2023-03-16 18:51:29] [INFO ] [Nat]Absence check using 13 positive place invariants in 7 ms returned sat
[2023-03-16 18:51:44] [INFO ] After 14798ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2023-03-16 18:51:44] [INFO ] State equation strengthened by 829 read => feed constraints.
[2023-03-16 18:51:54] [INFO ] After 9949ms SMT Verify possible using 829 Read/Feed constraints in natural domain returned unsat :0 sat :3
[2023-03-16 18:51:54] [INFO ] After 9952ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :3
Attempting to minimize the solution found.
Minimization took 11 ms.
[2023-03-16 18:51:54] [INFO ] After 25040ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :3
Parikh walk visited 0 properties in 12 ms.
Support contains 140 out of 627 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 627/627 places, 31353/31353 transitions.
Applied a total of 0 rules in 216 ms. Remains 627 /627 variables (removed 0) and now considering 31353/31353 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 216 ms. Remains : 627/627 places, 31353/31353 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 627/627 places, 31353/31353 transitions.
Applied a total of 0 rules in 183 ms. Remains 627 /627 variables (removed 0) and now considering 31353/31353 (removed 0) transitions.
[2023-03-16 18:51:54] [INFO ] Flow matrix only has 18326 transitions (discarded 13027 similar events)
[2023-03-16 18:51:54] [INFO ] Invariant cache hit.
[2023-03-16 18:51:56] [INFO ] Implicit Places using invariants in 1504 ms returned []
Implicit Place search using SMT only with invariants took 1507 ms to find 0 implicit places.
[2023-03-16 18:51:56] [INFO ] Flow matrix only has 18326 transitions (discarded 13027 similar events)
[2023-03-16 18:51:56] [INFO ] Invariant cache hit.
[2023-03-16 18:52:04] [INFO ] Dead Transitions using invariants and state equation in 8381 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 10078 ms. Remains : 627/627 places, 31353/31353 transitions.
Ensure Unique test removed 13027 transitions
Reduce isomorphic transitions removed 13027 transitions.
Iterating post reduction 0 with 13027 rules applied. Total rules applied 13027 place count 627 transition count 18326
Applied a total of 13027 rules in 658 ms. Remains 627 /627 variables (removed 0) and now considering 18326/31353 (removed 13027) transitions.
Running SMT prover for 4 properties.
// Phase 1: matrix 18326 rows 627 cols
[2023-03-16 18:52:05] [INFO ] Computed 13 place invariants in 70 ms
[2023-03-16 18:52:05] [INFO ] After 124ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:4
[2023-03-16 18:52:05] [INFO ] [Nat]Absence check using 13 positive place invariants in 6 ms returned sat
[2023-03-16 18:52:33] [INFO ] After 27728ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :4
[2023-03-16 18:52:36] [INFO ] After 30086ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :4
Attempting to minimize the solution found.
Minimization took 1391 ms.
[2023-03-16 18:52:37] [INFO ] After 31627ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :4
[2023-03-16 18:52:37] [INFO ] Export to MCC of 4 properties in file /home/mcc/execution/ReachabilityCardinality.sr.xml took 3 ms.
[2023-03-16 18:52:37] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 627 places, 31353 transitions and 125406 arcs took 92 ms.
[2023-03-16 18:52:38] [INFO ] Flatten gal took : 978 ms
Total runtime 131680 ms.
There are residual formulas that ITS could not solve within timeout
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --invariant=/tmp/497/inv_0_ --invariant=/tmp/497/inv_1_ --invariant=/tmp/497/inv_2_ --invariant=/tmp/497/inv_3_ --inv-par
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393232 kB
MemFree: 15169116 kB
After kill :
MemTotal: 16393232 kB
MemFree: 16061452 kB

BK_TIME_CONFINEMENT_REACHED

--------------------
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 ReachabilityCardinality -timeout 360 -rebuildPNML
mcc2023

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="RERS17pb113-PT-5"
export BK_EXAMINATION="ReachabilityCardinality"
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 2-5348"
echo " Executing tool ltsminxred"
echo " Input is RERS17pb113-PT-5, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r329-tall-167889201500038"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/RERS17pb113-PT-5.tgz
mv RERS17pb113-PT-5 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;