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.r293-tall-167873945800726.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)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is PolyORBNT-PT-S05J30, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r293-tall-167873945800726
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.3M
-rw-r--r-- 1 mcc users 15K Feb 25 23:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 99K Feb 25 23:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 62K Feb 25 23:20 CTLFireability.txt
-rw-r--r-- 1 mcc users 274K Feb 25 23:20 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 18K Feb 25 16:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Feb 25 16:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 26K Feb 25 16:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 84K Feb 25 16:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 33K Feb 25 23:30 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 216K Feb 25 23:30 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 30K Feb 25 23:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 126K Feb 25 23:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 4.5K Feb 25 16:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 9.7K Feb 25 16:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 1.2M 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 PolyORBNT-PT-S05J30-ReachabilityCardinality-00
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-01
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-02
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-03
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-04
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-05
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-06
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-07
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-08
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-09
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-10
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-11
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-12
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-13
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-14
FORMULA_NAME PolyORBNT-PT-S05J30-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1678952830938

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=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PolyORBNT-PT-S05J30
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202303021504
[2023-03-16 07:47:12] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-16 07:47:12] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-16 07:47:13] [INFO ] Load time of PNML (sax parser for PT used): 138 ms
[2023-03-16 07:47:13] [INFO ] Transformed 489 places.
[2023-03-16 07:47:13] [INFO ] Transformed 1400 transitions.
[2023-03-16 07:47:13] [INFO ] Parsed PT model containing 489 places and 1400 transitions and 9764 arcs in 245 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 22 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 655 transitions
Reduce redundant transitions removed 655 transitions.
Incomplete random walk after 10000 steps, including 696 resets, run finished after 536 ms. (steps per millisecond=18 ) properties (out of 16) seen :1
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 1000 steps, including 14 resets, run finished after 7 ms. (steps per millisecond=142 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 26 resets, run finished after 19 ms. (steps per millisecond=52 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 18 resets, run finished after 14 ms. (steps per millisecond=71 ) properties (out of 15) seen :0
Incomplete Best-First random walk after 1001 steps, including 12 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 15) seen :1
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 1000 steps, including 16 resets, run finished after 11 ms. (steps per millisecond=90 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1001 steps, including 24 resets, run finished after 12 ms. (steps per millisecond=83 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1000 steps, including 20 resets, run finished after 11 ms. (steps per millisecond=90 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1001 steps, including 20 resets, run finished after 15 ms. (steps per millisecond=66 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1000 steps, including 25 resets, run finished after 16 ms. (steps per millisecond=62 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1001 steps, including 15 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1001 steps, including 16 resets, run finished after 11 ms. (steps per millisecond=91 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1000 steps, including 15 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1000 steps, including 6 resets, run finished after 9 ms. (steps per millisecond=111 ) properties (out of 14) seen :0
Incomplete Best-First random walk after 1001 steps, including 14 resets, run finished after 17 ms. (steps per millisecond=58 ) properties (out of 14) seen :0
Running SMT prover for 14 properties.
[2023-03-16 07:47:13] [INFO ] Flow matrix only has 741 transitions (discarded 4 similar events)
// Phase 1: matrix 741 rows 489 cols
[2023-03-16 07:47:13] [INFO ] Computed 82 place invariants in 52 ms
[2023-03-16 07:47:14] [INFO ] Flatten gal took : 294 ms
[2023-03-16 07:47:14] [INFO ] Flatten gal took : 148 ms
[2023-03-16 07:47:14] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11791366155985648770.gal : 33 ms
[2023-03-16 07:47:14] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17228849243952167898.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11791366155985648770.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17228849243952167898.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
Loading property file /tmp/ReachabilityCardinality17228849243952167898.prop.
SDD proceeding with computation,14 properties remain. new max is 4
SDD size :1 after 8
[2023-03-16 07:47:15] [INFO ] After 784ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:14
SDD proceeding with computation,14 properties remain. new max is 8
SDD size :8 after 32
SDD proceeding with computation,14 properties remain. new max is 16
SDD size :32 after 64
SDD proceeding with computation,14 properties remain. new max is 32
SDD size :64 after 99
SDD proceeding with computation,14 properties remain. new max is 64
SDD size :99 after 103
[2023-03-16 07:47:15] [INFO ] [Nat]Absence check using 58 positive place invariants in 13 ms returned sat
SDD proceeding with computation,14 properties remain. new max is 128
SDD size :103 after 111
[2023-03-16 07:47:15] [INFO ] [Nat]Absence check using 58 positive and 24 generalized place invariants in 26 ms returned sat
SDD proceeding with computation,14 properties remain. new max is 256
SDD size :111 after 122
SDD proceeding with computation,14 properties remain. new max is 512
SDD size :122 after 145
SDD proceeding with computation,14 properties remain. new max is 1024
SDD size :145 after 197
[2023-03-16 07:47:16] [INFO ] After 1176ms SMT Verify possible using state equation in natural domain returned unsat :13 sat :1
[2023-03-16 07:47:16] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-16 07:47:17] [INFO ] After 750ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :13 sat :1
[2023-03-16 07:47:18] [INFO ] Deduced a trap composed of 24 places in 270 ms of which 11 ms to minimize.
[2023-03-16 07:47:18] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 522 ms
[2023-03-16 07:47:18] [INFO ] After 1666ms SMT Verify possible using trap constraints in natural domain returned unsat :13 sat :1
Attempting to minimize the solution found.
Minimization took 325 ms.
[2023-03-16 07:47:18] [INFO ] After 3461ms SMT Verify possible using all constraints in natural domain returned unsat :13 sat :1
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-15 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-13 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-12 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-11 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-09 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-08 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-06 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-05 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-04 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-03 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-02 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 14 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 7 ms.
Support contains 32 out of 489 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 489/489 places, 745/745 transitions.
Ensure Unique test removed 5 places
Drop transitions removed 32 transitions
Trivial Post-agglo rules discarded 32 transitions
Performed 32 trivial Post agglomeration. Transition count delta: 32
Iterating post reduction 0 with 37 rules applied. Total rules applied 37 place count 484 transition count 713
Reduce places removed 32 places and 0 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 34 rules applied. Total rules applied 71 place count 452 transition count 711
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 73 place count 450 transition count 711
Performed 31 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 31 Pre rules applied. Total rules applied 73 place count 450 transition count 680
Deduced a syphon composed of 31 places in 8 ms
Reduce places removed 31 places and 0 transitions.
Iterating global reduction 3 with 62 rules applied. Total rules applied 135 place count 419 transition count 680
Discarding 1 places :
Symmetric choice reduction at 3 with 1 rule applications. Total rules 136 place count 418 transition count 679
Iterating global reduction 3 with 1 rules applied. Total rules applied 137 place count 418 transition count 679
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 1 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 3 with 4 rules applied. Total rules applied 141 place count 416 transition count 677
Applied a total of 141 rules in 192 ms. Remains 416 /489 variables (removed 73) and now considering 677/745 (removed 68) transitions.
[2023-03-16 07:47:18] [INFO ] Flow matrix only has 673 transitions (discarded 4 similar events)
// Phase 1: matrix 673 rows 416 cols
[2023-03-16 07:47:18] [INFO ] Computed 77 place invariants in 21 ms
[2023-03-16 07:47:19] [INFO ] Dead Transitions using invariants and state equation in 492 ms found 95 transitions.
Found 95 dead transitions using SMT.
Drop transitions removed 95 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 95 transitions.
Starting structural reductions in REACHABILITY mode, iteration 1 : 416/489 places, 582/745 transitions.
Applied a total of 0 rules in 28 ms. Remains 416 /416 variables (removed 0) and now considering 582/582 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 714 ms. Remains : 416/489 places, 582/745 transitions.
Finished random walk after 647 steps, including 38 resets, run visited all 1 properties in 5 ms. (steps per millisecond=129 )
FORMULA PolyORBNT-PT-S05J30-ReachabilityCardinality-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
ITS runner failed with exception null
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Thread.join(Thread.java:1304)
at java.base/java.lang.Thread.join(Thread.java:1372)
at fr.lip6.move.gal.application.runner.AbstractRunner.join(AbstractRunner.java:27)
at fr.lip6.move.gal.application.runner.its.ITSRunner.join(ITSRunner.java:177)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:675)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
All properties solved without resorting to model-checking.
Total runtime 6605 ms.

BK_STOP 1678952844471

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="PolyORBNT-PT-S05J30"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="itstools"
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 itstools"
echo " Input is PolyORBNT-PT-S05J30, 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 r293-tall-167873945800726"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-PT-S05J30.tgz
mv PolyORBNT-PT-S05J30 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 ;