Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r162-smll-165277003100188.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.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 2-4028
Executing tool gold2021
Input is Parking-PT-104, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r162-smll-165277003100188
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 252K
-rw-r--r-- 1 mcc users 6.5K Apr 30 05:49 CTLCardinality.txt
-rw-r--r-- 1 mcc users 73K Apr 30 05:49 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Apr 30 05:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Apr 30 05:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K May 9 08:23 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 9 08:23 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 9 08:23 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 9 08:23 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 9 08:23 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 9 08:23 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 4 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 23K May 10 09:34 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 1652992546767

Running Version 0
[2022-05-19 20:35:50] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2022-05-19 20:35:50] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-19 20:35:50] [INFO ] Load time of PNML (sax parser for PT used): 88 ms
[2022-05-19 20:35:50] [INFO ] Transformed 65 places.
[2022-05-19 20:35:50] [INFO ] Transformed 97 transitions.
[2022-05-19 20:35:50] [INFO ] Found NUPN structural information;
[2022-05-19 20:35:50] [INFO ] Parsed PT model containing 65 places and 97 transitions in 179 ms.
Structural test allowed to assert that 25 places are NOT stable. Took 19 ms.
Ensure Unique test removed 41 transitions
Reduce redundant transitions removed 41 transitions.
Incomplete random walk after 10000 steps, including 593 resets, run finished after 77 ms. (steps per millisecond=129 ) properties (out of 40) seen :32
Incomplete Best-First random walk after 10001 steps, including 103 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10000 steps, including 105 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 105 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10000 steps, including 103 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 8) seen :1
Incomplete Best-First random walk after 10001 steps, including 103 resets, run finished after 24 ms. (steps per millisecond=416 ) properties (out of 7) seen :2
Incomplete Best-First random walk after 10001 steps, including 105 resets, run finished after 22 ms. (steps per millisecond=454 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 105 resets, run finished after 15 ms. (steps per millisecond=666 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 105 resets, run finished after 14 ms. (steps per millisecond=714 ) properties (out of 5) seen :1
Running SMT prover for 4 properties.
// Phase 1: matrix 56 rows 65 cols
[2022-05-19 20:35:51] [INFO ] Computed 16 place invariants in 13 ms
[2022-05-19 20:35:51] [INFO ] [Real]Absence check using 15 positive place invariants in 17 ms returned sat
[2022-05-19 20:35:51] [INFO ] [Real]Absence check using 15 positive and 1 generalized place invariants in 1 ms returned sat
[2022-05-19 20:35:51] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:51] [INFO ] [Real]Absence check using state equation in 64 ms returned sat
[2022-05-19 20:35:51] [INFO ] Solution in real domain found non-integer solution.
[2022-05-19 20:35:51] [INFO ] [Nat]Absence check using 15 positive place invariants in 13 ms returned sat
[2022-05-19 20:35:51] [INFO ] [Nat]Absence check using 15 positive and 1 generalized place invariants in 1 ms returned sat
[2022-05-19 20:35:51] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:51] [INFO ] [Nat]Absence check using state equation in 48 ms returned sat
[2022-05-19 20:35:51] [INFO ] State equation strengthened by 12 read => feed constraints.
[2022-05-19 20:35:51] [INFO ] [Nat]Added 12 Read/Feed constraints in 6 ms returned sat
[2022-05-19 20:35:51] [INFO ] Computed and/alt/rep : 55/191/55 causal constraints (skipped 0 transitions) in 16 ms.
[2022-05-19 20:35:51] [INFO ] Deduced a trap composed of 30 places in 98 ms of which 21 ms to minimize.
[2022-05-19 20:35:51] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 128 ms
[2022-05-19 20:35:51] [INFO ] Added : 38 causal constraints over 8 iterations in 309 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 3 ms.
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using 15 positive place invariants in 11 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using 15 positive and 1 generalized place invariants in 4 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using state equation in 51 ms returned sat
[2022-05-19 20:35:52] [INFO ] Solution in real domain found non-integer solution.
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using 15 positive place invariants in 11 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using 15 positive and 1 generalized place invariants in 1 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Added 12 Read/Feed constraints in 5 ms returned sat
[2022-05-19 20:35:52] [INFO ] Computed and/alt/rep : 55/191/55 causal constraints (skipped 0 transitions) in 17 ms.
[2022-05-19 20:35:52] [INFO ] Added : 36 causal constraints over 8 iterations in 128 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 4 ms.
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using 15 positive place invariants in 9 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using 15 positive and 1 generalized place invariants in 2 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2022-05-19 20:35:52] [INFO ] Solution in real domain found non-integer solution.
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using 15 positive place invariants in 10 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using 15 positive and 1 generalized place invariants in 2 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using state equation in 42 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Added 12 Read/Feed constraints in 5 ms returned sat
[2022-05-19 20:35:52] [INFO ] Computed and/alt/rep : 55/191/55 causal constraints (skipped 0 transitions) in 9 ms.
[2022-05-19 20:35:52] [INFO ] Added : 37 causal constraints over 8 iterations in 116 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 3 ms.
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using 15 positive place invariants in 7 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using 15 positive and 1 generalized place invariants in 1 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:52] [INFO ] [Real]Absence check using state equation in 39 ms returned sat
[2022-05-19 20:35:52] [INFO ] Solution in real domain found non-integer solution.
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using 15 positive place invariants in 9 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using 15 positive and 1 generalized place invariants in 2 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-05-19 20:35:52] [INFO ] [Nat]Absence check using state equation in 46 ms returned sat
[2022-05-19 20:35:52] [INFO ] [Nat]Added 12 Read/Feed constraints in 5 ms returned sat
[2022-05-19 20:35:52] [INFO ] Computed and/alt/rep : 55/191/55 causal constraints (skipped 0 transitions) in 10 ms.
[2022-05-19 20:35:53] [INFO ] Added : 37 causal constraints over 8 iterations in 129 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 4 ms.
Incomplete Parikh walk after 3600 steps, including 245 resets, run finished after 21 ms. (steps per millisecond=171 ) properties (out of 4) seen :0 could not realise parikh vector
Incomplete Parikh walk after 4100 steps, including 219 resets, run finished after 21 ms. (steps per millisecond=195 ) properties (out of 4) seen :0 could not realise parikh vector
Incomplete Parikh walk after 3900 steps, including 187 resets, run finished after 20 ms. (steps per millisecond=195 ) properties (out of 4) seen :0 could not realise parikh vector
Incomplete Parikh walk after 2400 steps, including 148 resets, run finished after 13 ms. (steps per millisecond=184 ) properties (out of 4) seen :0 could not realise parikh vector
Support contains 4 out of 65 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 65/65 places, 56/56 transitions.
Drop transitions removed 2 transitions
Trivial Post-agglo rules discarded 2 transitions
Performed 2 trivial Post agglomeration. Transition count delta: 2
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 65 transition count 54
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 1 with 2 rules applied. Total rules applied 4 place count 63 transition count 54
Performed 2 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 2 Pre rules applied. Total rules applied 4 place count 63 transition count 52
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 8 place count 61 transition count 52
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 9 place count 60 transition count 51
Iterating global reduction 2 with 1 rules applied. Total rules applied 10 place count 60 transition count 51
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 16 place count 57 transition count 48
Free-agglomeration rule applied 9 times.
Iterating global reduction 2 with 9 rules applied. Total rules applied 25 place count 57 transition count 39
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 34 place count 48 transition count 39
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 3 with 1 rules applied. Total rules applied 35 place count 47 transition count 38
Reduce places removed 9 places and 0 transitions.
Drop transitions removed 13 transitions
Trivial Post-agglo rules discarded 13 transitions
Performed 13 trivial Post agglomeration. Transition count delta: 13
Iterating post reduction 3 with 22 rules applied. Total rules applied 57 place count 38 transition count 25
Reduce places removed 13 places and 0 transitions.
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 4 with 19 rules applied. Total rules applied 76 place count 25 transition count 19
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 5 with 4 rules applied. Total rules applied 80 place count 21 transition count 19
Performed 5 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 5 Pre rules applied. Total rules applied 80 place count 21 transition count 14
Deduced a syphon composed of 5 places in 1 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 6 with 10 rules applied. Total rules applied 90 place count 16 transition count 14
Applied a total of 90 rules in 67 ms. Remains 16 /65 variables (removed 49) and now considering 14/56 (removed 42) transitions.
Finished structural reductions, in 1 iterations. Remains : 16/65 places, 14/56 transitions.
[2022-05-19 20:35:53] [INFO ] Flatten gal took : 42 ms
[2022-05-19 20:35:53] [INFO ] Flatten gal took : 12 ms
[2022-05-19 20:35:53] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9939592543603214270.gal : 9 ms
[2022-05-19 20:35:53] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18057294886924381776.prop : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality9939592543603214270.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality18057294886924381776.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality9939592543603214270.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality18057294886924381776.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality18057294886924381776.prop.
Invariant property smplace_41 does not hold.
SDD proceeding with computation,3 properties remain. new max is 2
SDD size :1 after 5
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :5 after 6
Invariant property smplace_51 does not hold.
Invariant property smplace_50 does not hold.
Invariant property smplace_49 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 5 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,10,0.023741,4120,2,39,12,159,6,0,81,85,0
Total reachable state count : 10

Verifying 4 reachability properties.
Invariant property smplace_41 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_41,1,0.024093,4120,2,17,12,159,7,0,84,85,0
Invariant property smplace_49 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_49,1,0.024373,4120,2,17,12,159,8,0,86,85,0
Invariant property smplace_50 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_50,1,0.024627,4120,2,17,12,159,9,0,88,85,0
Invariant property smplace_51 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_51,1,0.024879,4120,2,17,12,159,10,0,90,85,0
Able to resolve query StableMarking after proving 41 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK MARKED_SUFFIX_TEST DECISION_DIAGRAMS COLLATERAL_PROCESSING BESTFIRST_WALK TOPOLOGICAL

BK_STOP 1652992555162

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination StableMarking -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="Parking-PT-104"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="gold2021"
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 2-4028"
echo " Executing tool gold2021"
echo " Input is Parking-PT-104, 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 r162-smll-165277003100188"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Parking-PT-104.tgz
mv Parking-PT-104 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 ;