fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r091-blw7-152650003500185
Last Updated
June 26, 2018

About the Execution of Irma.struct for FlexibleBarrier-PT-16a

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
662.680 7137.00 14624.00 256.00 FFTFTTFFTFFTFTTT normal

Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
................
/home/mcc/execution
total 376K
-rw-r--r-- 1 mcc users 3.3K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:50 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.1K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.3K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 10K May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 7.8K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 17K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 113 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 351 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.4K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 13K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:50 equiv_col
-rw-r--r-- 1 mcc users 4 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 214K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool irma4mcc-structural
Input is FlexibleBarrier-PT-16a, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r091-blw7-152650003500185
=====================================================================


--------------------
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 FlexibleBarrier-PT-16a-CTLCardinality-00
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-01
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-02
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-03
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-04
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-05
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-06
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-07
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-08
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-09
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-10
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-11
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-12
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-13
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-14
FORMULA_NAME FlexibleBarrier-PT-16a-CTLCardinality-15

=== Now, execution of the tool begins

BK_START 1527192618870


BK_STOP 1527192626007

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

Prefix is 75f5f979.
Reading known information in /usr/share/mcc4mcc/75f5f979-known.json.
Reading learned information in /usr/share/mcc4mcc/75f5f979-learned.json.
Reading value translations in /usr/share/mcc4mcc/75f5f979-values.json.
Using directory /home/mcc/execution for input, as it contains a model.pnml file.
Using FlexibleBarrier-PT-16a as instance name.
Using FlexibleBarrier as model name.
Using algorithm or tool bmdt.
Model characteristics are: {'Examination': 'CTLCardinality', 'Place/Transition': True, 'Colored': False, 'Relative-Time': 1, 'Relative-Memory': 1, 'Ordinary': True, 'Simple Free Choice': False, 'Extended Free Choice': False, 'State Machine': False, 'Marked Graph': False, 'Connected': True, 'Strongly Connected': False, 'Source Place': True, 'Sink Place': False, 'Source Transition': False, 'Sink Transition': False, 'Loop Free': None, 'Conservative': False, 'Sub-Conservative': False, 'Nested Units': True, 'Safe': True, 'Deadlock': None, 'Reversible': None, 'Quasi Live': None, 'Live': None}.
Known tools are: [{'Time': 2989, 'Memory': 235.08, 'Tool': 'itstools'}, {'Time': 5953, 'Memory': 180.22, 'Tool': 'gspn'}, {'Time': 2680849, 'Memory': 15952.4, 'Tool': 'lola'}].
Learned tools are: [{'Tool': 'lola'}].
Learned tool lola is 896.9049849447975x far from the best tool itstools.
CTLCardinality itstools FlexibleBarrier-PT-16a...
May 24, 2018 8:10:24 PM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-z3path, /usr/bin/z3, -yices2path, /usr/bin/yices, -ltsminpath, /usr/bin, -smt, -its, -pnfolder, /mcc-data, -examination, CTLCardinality]
May 24, 2018 8:10:24 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /mcc-data/model.pnml
May 24, 2018 8:10:24 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 126 ms
May 24, 2018 8:10:24 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 195 places.
May 24, 2018 8:10:24 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 724 transitions.
May 24, 2018 8:10:24 PM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
May 24, 2018 8:10:24 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /mcc-data/model.pnml.img.gal : 27 ms
May 24, 2018 8:10:24 PM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
May 24, 2018 8:10:24 PM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
May 24, 2018 8:10:25 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 187 ms
May 24, 2018 8:10:25 PM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
May 24, 2018 8:10:25 PM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 1429 redundant transitions.
May 24, 2018 8:10:25 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /mcc-data/CTLCardinality.pnml.gal : 7 ms
May 24, 2018 8:10:25 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /mcc-data/CTLCardinality.ctl : 1 ms
Invoking ITS tools like this :CommandLine [args=[/usr/share/itscl/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201804131302/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /mcc-data/CTLCardinality.pnml.gal, -t, CGAL, -ctl, /mcc-data/CTLCardinality.ctl], workingDir=/mcc-data]

its-ctl command run as :

/usr/share/itscl/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201804131302/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /mcc-data/CTLCardinality.pnml.gal -t CGAL -ctl /mcc-data/CTLCardinality.ctl
No direction supplied, using forward translation only.
Parsed 16 CTL formulae.
built 153 ordering constraints for composite.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,1.84884e+17,0.10738,8488,42,25,6966,1038,555,6799,68,4728,0


Converting to forward existential form...Done !
original formula: AX(E(((u6.p67==0)||(u16.p191==1)) U (u4.p37>=3)))
=> equivalent forward existential formula: [(EY(Init) * !(E(((u6.p67==0)||(u16.p191==1)) U (u4.p37>=3))))] = FALSE
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,0,0.127674,8488,1,0,6966,1038,2113,6799,291,4728,1103
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: AG((((u10.p113==0)||(u6.p63==1)) * AG(((u2.p17==0)||(u7.p73==1)))))
=> equivalent forward existential formula: ([(FwdU(Init,TRUE) * !(((u10.p113==0)||(u6.p63==1))))] = FALSE * [(FwdU(FwdU(Init,TRUE),TRUE) * !(((u2.p17==0)||(u7.p73==1))))] = FALSE)
(forward)formula 1,0,0.136812,8488,1,0,6966,1038,2344,6799,308,4728,1656
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: !((EF(((u15.p173>=2)&&(u12.p137>=1))) * ((u10.p111==0)||(u16.p182==1))))
=> equivalent forward existential formula: ([(Init * !(E(TRUE U ((u15.p173>=2)&&(u12.p137>=1)))))] != FALSE + [(Init * !(((u10.p111==0)||(u16.p182==1))))] != FALSE)
(forward)formula 2,1,0.137325,8488,1,0,6966,1038,2354,6799,309,4728,1663
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: EX(AG((((u3.p30==0)||(u13.p149==1))||((u13.p148==0)||(u7.p77==1)))))
=> equivalent forward existential formula: [(EY(Init) * !(E(TRUE U !((((u3.p30==0)||(u13.p149==1))||((u13.p148==0)||(u7.p77==1)))))))] != FALSE
(forward)formula 3,0,0.147057,8868,1,0,6966,1571,2506,6799,326,4728,2983
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-03 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: ((((((u9.p108>=1)&&(u12.p143>=1))&&((u16.p191==0)||(u14.p165==1)))||(((u4.p39>=1)||((u12.p136==0)||(u1.p1==1)))||((u1.p10>=1)&&((u11.p124==0)||(u4.p42==1)))))||((((u1.p2>=2)&&((u14.p165==0)||(u16.p185==1)))||(((u14.p164==0)||(u6.p65==1))&&((u4.p37==0)||(u14.p166==1))))||((u2.p19==0)||(u16.p189==1)))) * EF(AX(((u1.p12==0)||(u13.p145==1)))))
=> equivalent forward existential formula: [(FwdU((Init * (((((u9.p108>=1)&&(u12.p143>=1))&&((u16.p191==0)||(u14.p165==1)))||(((u4.p39>=1)||((u12.p136==0)||(u1.p1==1)))||((u1.p10>=1)&&((u11.p124==0)||(u4.p42==1)))))||((((u1.p2>=2)&&((u14.p165==0)||(u16.p185==1)))||(((u14.p164==0)||(u6.p65==1))&&((u4.p37==0)||(u14.p166==1))))||((u2.p19==0)||(u16.p189==1))))),TRUE) * !(EX(!(((u1.p12==0)||(u13.p145==1))))))] != FALSE
(forward)formula 4,1,0.200471,9660,1,0,8344,2116,2570,8603,335,7376,11104
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: EF(((u11.p121>=1)||(!((u16.p187==0)||(u14.p166==1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * ((u11.p121>=1)||(!((u16.p187==0)||(u14.p166==1)))))] != FALSE
(forward)formula 5,1,0.201604,10188,1,0,8365,2124,2575,8637,335,7432,11128
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: AG(A(((u11.p130==0)||(u2.p18==1)) U ((u7.p78==0)||(u9.p102==1))))
=> equivalent forward existential formula: ([(FwdU(FwdU(Init,TRUE),!(((u7.p78==0)||(u9.p102==1)))) * (!(((u11.p130==0)||(u2.p18==1))) * !(((u7.p78==0)||(u9.p102==1)))))] = FALSE * [FwdG(FwdU(Init,TRUE),!(((u7.p78==0)||(u9.p102==1))))] = FALSE)
Using saturation style SCC detection
Fast SCC detection found an SCC at level 1
Fast SCC detection found an SCC at level 2
Fast SCC detection found an SCC at level 4
Fast SCC detection found an SCC at level 5
Fast SCC detection found an SCC at level 6
Fast SCC detection found an SCC at level 7
Fast SCC detection found an SCC at level 8
Fast SCC detection found an SCC at level 9
Fast SCC detection found an SCC at level 10
Fast SCC detection found an SCC at level 11
Fast SCC detection found an SCC at level 12
Fast SCC detection found an SCC at level 13
Fast SCC detection found an SCC at level 14
Fast SCC detection found an SCC at level 15
Fast SCC detection found an SCC at level 16
Fast SCC detection found an SCC at level 17
Fast SCC detection found an SCC at level 18
(forward)formula 6,0,0.215234,10188,1,0,8756,2202,2791,9109,349,8184,11792
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: EF(AG(((u1.p1>=3)||(u10.p113>=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U !(((u1.p1>=3)||(u10.p113>=1))))))] != FALSE
(forward)formula 7,0,0.216211,10452,1,0,8765,2202,2795,9110,349,8184,11854
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: (AG(((!(u3.p27>=3))||((u11.p122==0)||(u12.p139==1)))) * ((u5.p55==0)||(u11.p122==1)))
=> equivalent forward existential formula: ([(FwdU(Init,TRUE) * !(((!(u3.p27>=3))||((u11.p122==0)||(u12.p139==1)))))] = FALSE * [(Init * !(((u5.p55==0)||(u11.p122==1))))] = FALSE)
(forward)formula 8,1,0.21725,10452,1,0,8804,2206,2812,9133,354,8225,11924
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: AG(E(((u15.p174==0)||(u7.p74==1)) U ((u7.p84==0)||(u14.p159==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(((u15.p174==0)||(u7.p74==1)) U ((u7.p84==0)||(u14.p159==1)))))] = FALSE
(forward)formula 9,0,0.227346,10452,1,0,9121,2662,2978,9568,355,9168,12629
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: EF((!((u16.p184>=2)) * EX((u7.p78>=2))))
=> equivalent forward existential formula: [(EY((FwdU(Init,TRUE) * !((u16.p184>=2)))) * (u7.p78>=2))] != FALSE
(forward)formula 10,0,0.227546,10716,1,0,9121,2662,2980,9568,356,9168,12629
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-10 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: EF(!(((!((u13.p151==0)||(u14.p161==1)))||(((u9.p104==0)||(u15.p169==1))&&((u9.p104==0)||(u16.p190==1))))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(((!((u13.p151==0)||(u14.p161==1)))||(((u9.p104==0)||(u15.p169==1))&&((u9.p104==0)||(u16.p190==1))))))] != FALSE
(forward)formula 11,1,0.229035,10980,1,0,9174,2671,2993,9624,356,9200,12683
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: AF(EF(((u1.p11>=3)||(u9.p106>=3))))
=> equivalent forward existential formula: [FwdG(Init,!(E(TRUE U ((u1.p11>=3)||(u9.p106>=3)))))] = FALSE
(forward)formula 12,0,0.229949,10980,1,0,9222,2677,2998,9680,358,9242,12845
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: EF((u1.p7>=1))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (u1.p7>=1))] != FALSE
(forward)formula 13,1,0.230218,10980,1,0,9241,2677,3000,9699,358,9242,12884
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: EF(!(((u6.p63==0)||(u15.p175==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(((u6.p63==0)||(u15.p175==1))))] != FALSE
(forward)formula 14,1,0.230774,10980,1,0,9281,2677,3005,9737,359,9242,12917
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

original formula: EG(EF(((u3.p30>=1)||(u15.p175>=1))))
=> equivalent forward existential formula: [FwdG(Init,E(TRUE U ((u3.p30>=1)||(u15.p175>=1))))] != FALSE
(forward)formula 15,1,0.231564,10980,1,0,9310,2677,3009,9762,359,9242,13016
FORMULA FlexibleBarrier-PT-16a-CTLCardinality-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

***************************************

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="FlexibleBarrier-PT-16a"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="irma4mcc-structural"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-16a.tgz
mv FlexibleBarrier-PT-16a execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool irma4mcc-structural"
echo " Input is FlexibleBarrier-PT-16a, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r091-blw7-152650003500185"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 '' CTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
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 ;