Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r130-smll-177955809100470.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-input.qcow2 backing_fmt=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 2-5973
Executing tool itstools
Input is FMS-PT-00002, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r130-smll-177955809100470
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 540K
-rw-r--r-- 1 mcc users 7.3K Mar 7 05:11 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Mar 7 05:11 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.3K Mar 7 05:10 CTLFireability.txt
-rw-r--r-- 1 mcc users 34K Mar 7 05:10 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Mar 15 10:16 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 10:16 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 10:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 10:16 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Mar 7 05:11 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 168K Mar 7 05:11 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Mar 7 05:11 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 97K Mar 7 05:11 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 10:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 15 10:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 16K Mar 3 18:30 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-00
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-01
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-02
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-03
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-04
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-05
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-06
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-07
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-08
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-09
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-10
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-11
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-12
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-13
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-14
FORMULA_NAME FMS-PT-00002-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779940774216

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FMS-PT-00002
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-05-28 03:59:36] [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]
[2026-05-28 03:59:36] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-28 03:59:37] [INFO ] Load time of PNML (sax parser for PT used): 79 ms
[2026-05-28 03:59:37] [INFO ] Transformed 22 places.
[2026-05-28 03:59:37] [INFO ] Transformed 20 transitions.
[2026-05-28 03:59:37] [INFO ] Parsed PT model containing 22 places and 20 transitions and 50 arcs in 293 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 71 ms.
Reduction of identical properties reduced properties to check from 16 to 15
Working with output stream class java.io.PrintStream
[2026-05-28 03:59:37] [INFO ] Flatten gal took : 51 ms
[2026-05-28 03:59:37] [INFO ] Flatten gal took : 13 ms
RANDOM walk for 40002 steps (8 resets) in 2195 ms. (18 steps per ms) remains 14/15 properties
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2026-05-28 03:59:38] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3211795550010931889.gal : 10 ms
[2026-05-28 03:59:38] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14072901915247474307.prop : 13 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality3211795550010931889.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14072901915247474307.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality14072901915247474307.prop.
SDD proceeding with computation,14 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,14 properties remain. new max is 8
SDD size :5 after 15
SDD proceeding with computation,14 properties remain. new max is 16
SDD size :15 after 147
SDD proceeding with computation,14 properties remain. new max is 32
SDD size :147 after 494
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,3444,0.077216,4488,2,109,9,1561,20,0,461,637,0
Total reachable state count : 3444

Verifying 14 reachability properties.
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-00 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-00 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-00,0,0.077977,4620,1,0,9,1561,20,0,466,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-01 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-01,0,0.08381,4752,1,0,9,1561,20,0,512,637,0
Reachability property FMS-PT-00002-ReachabilityCardinality-2024-02 does not hold.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
BEST_FIRST walk for 40004 steps (8 resets) in 712 ms. (56 steps per ms) remains 14/14 properties
No reachable states exhibit your property : FMS-PT-00002-ReachabilityCardinality-2024-02

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-02,0,0.084098,4752,1,0,9,1561,20,0,512,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-03 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-03,0,0.088519,4752,1,0,9,1561,20,0,516,637,0
Reachability property FMS-PT-00002-ReachabilityCardinality-2024-04 does not hold.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-04 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : FMS-PT-00002-ReachabilityCardinality-2024-04

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-04,0,0.088796,4752,1,0,9,1561,20,0,516,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-05 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-05,0,0.093002,4752,1,0,9,1561,20,0,516,637,0
Reachability property FMS-PT-00002-ReachabilityCardinality-2024-06 does not hold.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : FMS-PT-00002-ReachabilityCardinality-2024-06

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-06,0,0.097343,4752,1,0,9,1561,20,0,525,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-07 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-07,0,0.099429,4752,1,0,9,1561,20,0,546,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-08 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-08,0,0.107074,4752,1,0,9,1561,20,0,615,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-09 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-09,0,0.109075,4752,1,0,9,1561,20,0,617,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-10 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-10,0,0.110481,4752,1,0,9,1561,20,0,618,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-11 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-11,0,0.110724,4752,1,0,9,1561,20,0,618,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-12 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-12,0,0.112783,4752,1,0,9,1561,20,0,619,637,0
Invariant property FMS-PT-00002-ReachabilityCardinality-2024-15 is true.
FORMULA FMS-PT-00002-ReachabilityCardinality-2024-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
FMS-PT-00002-ReachabilityCardinality-2024-15,0,0.118539,4752,1,0,9,1561,20,0,651,637,0
BEST_FIRST walk for 40003 steps (8 resets) in 802 ms. (49 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 179 ms. (222 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 272 ms. (146 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 126 ms. (314 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 205 ms. (194 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 624 ms. (64 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 244 ms. (163 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40001 steps (8 resets) in 826 ms. (48 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 152 ms. (261 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40003 steps (8 resets) in 120 ms. (330 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 177 ms. (224 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40004 steps (8 resets) in 173 ms. (229 steps per ms) remains 14/14 properties
BEST_FIRST walk for 40002 steps (8 resets) in 216 ms. (184 steps per ms) remains 14/14 properties
Probably explored full state space saw : 3444 states, properties seen :0
Probabilistic random walk after 19755 steps, saw 3444 distinct states, run finished after 143 ms. (steps per millisecond=138 ) properties seen :0
Explored full state space saw : 3444 states, properties seen :0
Exhaustive walk after 19755 steps, saw 3444 distinct states, run finished after 107 ms. (steps per millisecond=184 ) properties seen :0
All properties solved without resorting to model-checking.
Total runtime 3114 ms.

BK_STOP 1779940779880

--------------------
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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="FMS-PT-00002"
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 2-5973"
echo " Executing tool itstools"
echo " Input is FMS-PT-00002, 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 r130-smll-177955809100470"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FMS-PT-00002.tgz
mv FMS-PT-00002 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.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 ;