fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r092-blw7-152650004400143
Last Updated
June 26, 2018

About the Execution of ITS-Tools for FlexibleBarrier-PT-10a

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15754.940 2624.00 4715.00 98.70 FFFFFFTTTFTFFTFF 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 264K
-rw-r--r-- 1 mcc users 3.6K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 14K 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 2.5K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K 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 9.0K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K 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 2.9K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K 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 94K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstools
Input is FlexibleBarrier-PT-10a, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r092-blw7-152650004400143
=====================================================================


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

=== Now, execution of the tool begins

BK_START 1527253943023

Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/CTLCardinality.pnml.gal, -t, CGAL, -ctl, /home/mcc/execution/CTLCardinality.ctl], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/CTLCardinality.pnml.gal -t CGAL -ctl /home/mcc/execution/CTLCardinality.ctl
No direction supplied, using forward translation only.
Parsed 16 CTL formulae.
built 66 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,6.19174e+10,0.053639,6836,30,25,4433,783,297,4354,68,4185,0


Converting to forward existential form...Done !
original formula: AG(((((u12.p122>=1)||((u2.p21==0)||(u9.p105==1)))||(!(u6.p72>=2)))&&(((u5.p59>=1)||((u1.p2==0)||(u10.p110==1)))||(((u9.p100==0)||(u1.p12==1))||(u2.p23>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(((((u12.p122>=1)||((u2.p21==0)||(u9.p105==1)))||(!(u6.p72>=2)))&&(((u5.p59>=1)||((u1.p2==0)||(u10.p110==1)))||(((u9.p100==0)||(u1.p12==1))||(u2.p23>=1))))))] = FALSE
(forward)formula 0,0,0.056703,7272,1,0,4433,783,335,4354,87,4185,92
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: !(AG(!((((u5.p52==0)||(u6.p65==1))&&(u2.p21>=2)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (((u5.p52==0)||(u6.p65==1))&&(u2.p21>=2)))] != FALSE
(forward)formula 1,0,0.056965,7272,1,0,4433,783,343,4354,90,4185,106
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: AG((((u6.p63==0)||(u10.p115==1))||((u4.p44==0)||(u3.p27==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !((((u6.p63==0)||(u10.p115==1))||((u4.p44==0)||(u3.p27==1)))))] = FALSE
(forward)formula 2,0,0.05777,7272,1,0,4433,783,356,4354,98,4185,149
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: AG((((((u2.p18==0)||(u4.p39==1))||(u2.p24>=3))&&(((u1.p10==0)||(u9.p99==1))||((u10.p113==0)||(u4.p37==1))))||((u1.p10>=2)&&(((u1.p4==0)||(u2.p21==1))||(u3.p31>=3)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !((((((u2.p18==0)||(u4.p39==1))||(u2.p24>=3))&&(((u1.p10==0)||(u9.p99==1))||((u10.p113==0)||(u4.p37==1))))||((u1.p10>=2)&&(((u1.p4==0)||(u2.p21==1))||(u3.p31>=3))))))] = FALSE
(forward)formula 3,0,0.059648,7272,1,0,4433,783,391,4354,109,4185,286
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-03 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: AG((AX((u6.p65>=1)) + ((u8.p89==0)||(u4.p39==1))))
=> equivalent forward existential formula: [(EY((FwdU(Init,TRUE) * !(((u8.p89==0)||(u4.p39==1))))) * !((u6.p65>=1)))] = FALSE
(forward)formula 4,0,0.062937,7272,1,0,4433,783,579,4354,138,4185,561
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-04 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: AG(A((u10.p117>=1) U ((u5.p54==0)||(u2.p17==1))))
=> equivalent forward existential formula: ([(FwdU(FwdU(Init,TRUE),!(((u5.p54==0)||(u2.p17==1)))) * (!((u10.p117>=1)) * !(((u5.p54==0)||(u2.p17==1)))))] = FALSE * [FwdG(FwdU(Init,TRUE),!(((u5.p54==0)||(u2.p17==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 3
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 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
(forward)formula 5,0,0.07405,7272,1,0,4433,783,1478,4354,338,4185,1683
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: (AG(((!((u3.p33==0)||(u9.p99==1)))||(!(u8.p86>=3)))) * (!(((((u10.p118==0)||(u3.p32==1))&&((u8.p90==0)||(u1.p10==1)))||(((u4.p45==0)||(u8.p94==1))||((u5.p54==0)||(u6.p69==1))))) + EF(!((u8.p94>=2)))))
=> equivalent forward existential formula: ([(FwdU(Init,TRUE) * !(((!((u3.p33==0)||(u9.p99==1)))||(!(u8.p86>=3)))))] = FALSE * [((Init * !(!(((((u10.p118==0)||(u3.p32==1))&&((u8.p90==0)||(u1.p10==1)))||(((u4.p45==0)||(u8.p94==1))||((u5.p54==0)||(u6.p69==1))))))) * !(E(TRUE U !((u8.p94>=2)))))] = FALSE)
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 6,1,0.077746,7272,1,0,4433,838,1583,4354,355,4185,1878
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

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

original formula: EF((u10.p111>=1))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (u10.p111>=1))] != FALSE
(forward)formula 7,1,0.07794,7272,1,0,4433,838,1585,4354,355,4185,1883
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

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

original formula: EF(EX(!(((u8.p90==0)||(u1.p3==1)))))
=> equivalent forward existential formula: [(EY(FwdU(Init,TRUE)) * !(((u8.p90==0)||(u1.p3==1))))] != FALSE
(forward)formula 8,1,0.078712,7272,1,0,4433,845,1593,4354,355,4185,2120
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

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

original formula: EF((AF((u7.p80>=3)) * !(((u6.p62>=2)||(u6.p65>=2)))))
=> equivalent forward existential formula: [((FwdU(Init,TRUE) * !(((u6.p62>=2)||(u6.p65>=2)))) * !(EG(!((u7.p80>=3)))))] != FALSE
(forward)formula 9,0,0.079014,7272,1,0,4433,845,1598,4354,357,4185,2132
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: E(((u6.p65==0)||(u9.p106==1)) U (u8.p91>=1))
=> equivalent forward existential formula: [(FwdU(Init,((u6.p65==0)||(u9.p106==1))) * (u8.p91>=1))] != FALSE
(forward)formula 10,1,0.125192,8856,1,0,7537,1381,1680,8403,358,8586,10718
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

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

original formula: EF((((u5.p57==0)||(u2.p22==1))&&(u8.p95>=2)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (((u5.p57==0)||(u2.p22==1))&&(u8.p95>=2)))] != FALSE
(forward)formula 11,0,0.125577,9120,1,0,7537,1381,1687,8403,359,8586,10718
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: (((((!(u2.p17>=2))||(((u3.p25==0)||(u7.p81==1))||((u3.p32==0)||(u5.p49==1)))) * EF(((u8.p95==0)||(u2.p21==1)))) + (u9.p108>=2)) * E((((u10.p118==0)||(u6.p66==1))||(u9.p101>=1)) U ((u4.p40>=2)&&(u2.p22>=3))))
=> equivalent forward existential formula: [(FwdU((Init * ((((!(u2.p17>=2))||(((u3.p25==0)||(u7.p81==1))||((u3.p32==0)||(u5.p49==1)))) * E(TRUE U ((u8.p95==0)||(u2.p21==1)))) + (u9.p108>=2))),(((u10.p118==0)||(u6.p66==1))||(u9.p101>=1))) * ((u4.p40>=2)&&(u2.p22>=3)))] != FALSE
(forward)formula 12,0,0.125761,9120,1,0,7537,1381,1693,8403,361,8586,10718
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: !(EF((u5.p54>=3)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (u5.p54>=3))] = FALSE
(forward)formula 13,1,0.125851,9120,1,0,7537,1381,1695,8403,362,8586,10718
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !

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

original formula: EF((AF((u13.p0>=1)) * (((u7.p78>=3)&&(u8.p89>=2))&&(u6.p64>=1))))
=> equivalent forward existential formula: [((FwdU(Init,TRUE) * (((u7.p78>=3)&&(u8.p89>=2))&&(u6.p64>=1))) * !(EG(!((u13.p0>=1)))))] != FALSE
(forward)formula 14,0,0.126716,9384,1,0,7537,1381,1723,8404,367,8586,10752
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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

original formula: EX(EF(((u4.p37>=2)&&((u6.p62==0)||(u6.p70==1)))))
=> equivalent forward existential formula: [(FwdU(EY(Init),TRUE) * ((u4.p37>=2)&&((u6.p62==0)||(u6.p70==1))))] != FALSE
(forward)formula 15,0,0.127009,9384,1,0,7539,1381,1731,8404,369,8587,10756
FORMULA FlexibleBarrier-PT-10a-CTLCardinality-15 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

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


BK_STOP 1527253945647

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution CTLCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -consoleLog -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination CTLCardinality -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss8m -Xms40m -Xmx8192m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
May 25, 2018 1:12:24 PM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -smt]
May 25, 2018 1:12:24 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
May 25, 2018 1:12:24 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 85 ms
May 25, 2018 1:12:24 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 123 places.
May 25, 2018 1:12:25 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 334 transitions.
May 25, 2018 1:12:25 PM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
May 25, 2018 1:12:25 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 20 ms
May 25, 2018 1:12:25 PM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
May 25, 2018 1:12:25 PM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
May 25, 2018 1:12:25 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 93 ms
May 25, 2018 1:12:25 PM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
May 25, 2018 1:12:25 PM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 535 redundant transitions.
May 25, 2018 1:12:25 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLCardinality.pnml.gal : 5 ms
May 25, 2018 1:12:25 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLCardinality.ctl : 1 ms

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-10a"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="itstools"
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-10a.tgz
mv FlexibleBarrier-PT-10a 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 itstools"
echo " Input is FlexibleBarrier-PT-10a, 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 r092-blw7-152650004400143"
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 ;