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.r323-tall-165472292900284.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)
...................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2021
Input is RingSingleMessageInMbox-PT-d1m010, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r323-tall-165472292900284
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 6.2M
-rw-r--r-- 1 mcc users 8.7K Jun 7 17:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K Jun 7 17:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Jun 7 17:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 47K Jun 7 17:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Jun 6 15:30 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Jun 6 15:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Jun 6 15:30 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Jun 6 15:30 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 6 12:11 NewModel
-rw-r--r-- 1 mcc users 8.2K Jun 7 17:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 79K Jun 7 17:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.7K Jun 7 17:55 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 72K Jun 7 17:55 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Jun 6 15:30 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Jun 6 15:30 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 6 12:11 equiv_col
-rw-r--r-- 1 mcc users 7 Jun 6 12:11 instance
-rw-r--r-- 1 mcc users 6 Jun 6 12:11 iscolored
-rw-r--r-- 1 mcc users 5.8M Jun 6 12:11 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 RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-00
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-01
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-02
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-03
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-04
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-05
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-06
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-07
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-08
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-09
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-10
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-11
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-12
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-13
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-14
FORMULA_NAME RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1654787397669

Running Version 0
[2022-06-09 15:09:59] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -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, 3600]
[2022-06-09 15:09:59] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-06-09 15:09:59] [INFO ] Load time of PNML (sax parser for PT used): 422 ms
[2022-06-09 15:09:59] [INFO ] Transformed 6690 places.
[2022-06-09 15:09:59] [INFO ] Transformed 11934 transitions.
[2022-06-09 15:09:59] [INFO ] Parsed PT model containing 6690 places and 11934 transitions in 590 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 18 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 4305 places in 40 ms
Reduce places removed 4305 places and 0 transitions.
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 1557 resets, run finished after 856 ms. (steps per millisecond=11 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 86 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 40 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 55 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 61 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 38 resets, run finished after 39 ms. (steps per millisecond=256 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 50 resets, run finished after 30 ms. (steps per millisecond=333 ) properties (out of 10) seen :1
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-07 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 50 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 9) seen :1
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 51 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 66 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 8) seen :0
Incomplete Best-First random walk after 10001 steps, including 41 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 8) seen :0
Running SMT prover for 8 properties.
// Phase 1: matrix 11934 rows 2385 cols
[2022-06-09 15:10:02] [INFO ] Computed 5 place invariants in 964 ms
[2022-06-09 15:10:02] [INFO ] [Real]Absence check using 2 positive place invariants in 27 ms returned sat
[2022-06-09 15:10:02] [INFO ] [Real]Absence check using 2 positive and 3 generalized place invariants in 45 ms returned sat
[2022-06-09 15:10:02] [INFO ] SMT Verify possible in real domain returnedunsat :1 sat :0 real:7
[2022-06-09 15:10:03] [INFO ] [Nat]Absence check using 2 positive place invariants in 27 ms returned sat
[2022-06-09 15:10:03] [INFO ] [Nat]Absence check using 2 positive and 3 generalized place invariants in 41 ms returned sat
[2022-06-09 15:10:03] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2022-06-09 15:10:10] [INFO ] [Nat]Absence check using state equation in 6792 ms returned unsat :4 sat :4
[2022-06-09 15:10:14] [INFO ] State equation strengthened by 9690 read => feed constraints.
[2022-06-09 15:10:27] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-14 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-12 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-06 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-01 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-00 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 8 Parikh solutions to 3 different solutions.
Incomplete Parikh walk after 1800 steps, including 138 resets, run finished after 137 ms. (steps per millisecond=13 ) properties (out of 3) seen :1 could not realise parikh vector
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-04 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Incomplete Parikh walk after 700 steps, including 168 resets, run finished after 50 ms. (steps per millisecond=14 ) properties (out of 2) seen :0 could not realise parikh vector
Incomplete Parikh walk after 1900 steps, including 151 resets, run finished after 153 ms. (steps per millisecond=12 ) properties (out of 2) seen :1 could not realise parikh vector
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Support contains 3 out of 2385 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 2385/2385 places, 11934/11934 transitions.
Graph (complete) has 16557 edges and 2385 vertex of which 2367 are kept as prefixes of interest. Removing 18 places using SCC suffix rule.31 ms
Discarding 18 places :
Also discarding 0 output transitions
Drop transitions removed 9 transitions
Ensure Unique test removed 102 transitions
Reduce isomorphic transitions removed 111 transitions.
Iterating post reduction 0 with 111 rules applied. Total rules applied 112 place count 2367 transition count 11823
Discarding 1105 places :
Symmetric choice reduction at 1 with 1105 rule applications. Total rules 1217 place count 1262 transition count 2417
Iterating global reduction 1 with 1105 rules applied. Total rules applied 2322 place count 1262 transition count 2417
Ensure Unique test removed 75 transitions
Reduce isomorphic transitions removed 75 transitions.
Iterating post reduction 1 with 75 rules applied. Total rules applied 2397 place count 1262 transition count 2342
Discarding 909 places :
Symmetric choice reduction at 2 with 909 rule applications. Total rules 3306 place count 353 transition count 1433
Iterating global reduction 2 with 909 rules applied. Total rules applied 4215 place count 353 transition count 1433
Ensure Unique test removed 863 transitions
Reduce isomorphic transitions removed 863 transitions.
Iterating post reduction 2 with 863 rules applied. Total rules applied 5078 place count 353 transition count 570
Discarding 158 places :
Symmetric choice reduction at 3 with 158 rule applications. Total rules 5236 place count 195 transition count 412
Iterating global reduction 3 with 158 rules applied. Total rules applied 5394 place count 195 transition count 412
Ensure Unique test removed 120 transitions
Reduce isomorphic transitions removed 120 transitions.
Iterating post reduction 3 with 120 rules applied. Total rules applied 5514 place count 195 transition count 292
Discarding 10 places :
Symmetric choice reduction at 4 with 10 rule applications. Total rules 5524 place count 185 transition count 254
Iterating global reduction 4 with 10 rules applied. Total rules applied 5534 place count 185 transition count 254
Discarding 1 places :
Symmetric choice reduction at 4 with 1 rule applications. Total rules 5535 place count 184 transition count 253
Iterating global reduction 4 with 1 rules applied. Total rules applied 5536 place count 184 transition count 253
Discarding 5 places :
Symmetric choice reduction at 4 with 5 rule applications. Total rules 5541 place count 179 transition count 248
Iterating global reduction 4 with 5 rules applied. Total rules applied 5546 place count 179 transition count 248
Ensure Unique test removed 10 transitions
Reduce isomorphic transitions removed 10 transitions.
Iterating post reduction 4 with 10 rules applied. Total rules applied 5556 place count 179 transition count 238
Applied a total of 5556 rules in 697 ms. Remains 179 /2385 variables (removed 2206) and now considering 238/11934 (removed 11696) transitions.
Finished structural reductions, in 1 iterations. Remains : 179/2385 places, 238/11934 transitions.
[2022-06-09 15:10:29] [INFO ] Flatten gal took : 56 ms
[2022-06-09 15:10:29] [INFO ] Flatten gal took : 25 ms
[2022-06-09 15:10:29] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3433737813646176937.gal : 12 ms
[2022-06-09 15:10:29] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4532869197143953266.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/ReachabilityCardinality3433737813646176937.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality4532869197143953266.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/ReachabilityCardinality3433737813646176937.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality4532869197143953266.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality4532869197143953266.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 10
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :10 after 85
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :85 after 745
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :745 after 3059
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :3059 after 9044
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :9044 after 29589
SDD proceeding with computation,1 properties remain. new max is 256
SDD size :29589 after 86012
SDD proceeding with computation,1 properties remain. new max is 512
SDD size :86012 after 286414
SDD proceeding with computation,1 properties remain. new max is 1024
SDD size :286414 after 1.64534e+06
SDD proceeding with computation,1 properties remain. new max is 2048
SDD size :1.64534e+06 after 2.04097e+06
SDD proceeding with computation,1 properties remain. new max is 4096
SDD size :2.04097e+06 after 6.65549e+06
SDD proceeding with computation,1 properties remain. new max is 8192
SDD size :6.65549e+06 after 1.83454e+08
SDD proceeding with computation,1 properties remain. new max is 16384
SDD size :2.28379e+08 after 2.29465e+08
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,2.38357e+08,4.30717,102688,2,19348,19,188862,7,0,959,178640,0
Total reachable state count : 238357391

Verifying 1 reachability properties.
Reachability property RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-05 does not hold.
FORMULA RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-05

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RingSingleMessageInMbox-PT-d1m010-ReachabilityCardinality-05,0,4.31562,102688,1,0,19,188862,7,0,966,178640,0
All properties solved without resorting to model-checking.

BK_STOP 1654787434667

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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 ReachabilityCardinality -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 3600 -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="RingSingleMessageInMbox-PT-d1m010"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="gold2021"
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 2-4028"
echo " Executing tool gold2021"
echo " Input is RingSingleMessageInMbox-PT-d1m010, 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 r323-tall-165472292900284"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/RingSingleMessageInMbox-PT-d1m010.tgz
mv RingSingleMessageInMbox-PT-d1m010 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 ;