Execution Chart

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

Trace from the execution

Formatting '/local/x2003239/mcc2019-input.r189-csrt-155225079800014.qcow2', fmt=qcow2 size=4294967296 backing_file=/local/x2003239/mcc2019-input.qcow2 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.........................................................................................................
=====================================================================
Generated by BenchKit 2-3954
Executing tool itstoolsm
Input is Angiogenesis-PT-05, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r189-csrt-155225079800014
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 216K
-rw-r--r-- 1 mcc users 4.3K Feb 9 06:49 CTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Feb 9 06:49 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 5 03:33 CTLFireability.txt
-rw-r--r-- 1 mcc users 14K Feb 5 03:33 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K Mar 10 17:31 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 105 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 343 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.6K Feb 4 22:52 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K Feb 4 22:52 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.8K Feb 4 22:32 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.3K Feb 4 22:32 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.6K Feb 2 00:14 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 22K Feb 2 00:14 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Jan 29 11:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K Jan 29 11:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 4 22:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 4 22:18 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 equiv_col
-rw-r--r-- 1 mcc users 3 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 33K Mar 10 17:31 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 Angiogenesis-PT-05-CTLFireability-00
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-01
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-02
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-03
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-04
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-05
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-06
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-07
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-08
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-09
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-10
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-11
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-12
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-13
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-14
FORMULA_NAME Angiogenesis-PT-05-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1553581365048

Running greatSPN : CommandLine [args=[/home/mcc/BenchKit//greatspn//bin/pinvar, /home/mcc/execution/gspn], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit//greatspn//bin/RGMEDD2, /home/mcc/execution/gspn, -META, -varord-only], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903251645/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/CTLFireability.pnml.gal, -t, CGAL, -ctl, /home/mcc/execution/CTLFireability.ctl, --load-order, /home/mcc/execution/model.ord], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903251645/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/CTLFireability.pnml.gal -t CGAL -ctl /home/mcc/execution/CTLFireability.ctl --load-order /home/mcc/execution/model.ord
Successfully loaded order from file /home/mcc/execution/model.ord
No direction supplied, using forward translation only.
Parsed 16 CTL formulae.
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,4.27349e+07,1.16462,37188,2,6165,5,168541,6,0,220,173304,0


Converting to forward existential form...Done !
original formula: (AX(EG((KdStarGStarP3kStarP2>=1))) + AG(!((KdStarGStarPgP3>=1))))
=> equivalent forward existential formula: [(FwdU((Init * !(!(EX(!(EG((KdStarGStarP3kStarP2>=1))))))),TRUE) * (KdStarGStarPgP3>=1))] = FALSE
Reverse transition relation is NOT exact ! Due to transitions t12, t51, t57, t61, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :0/60/4/64
(forward)formula 0,0,3.96855,86724,1,0,84,377531,152,59,1617,441629,153
FORMULA Angiogenesis-PT-05-CTLFireability-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: !(E(EF((KdStarGStarP3kP3>=1)) U (((KdStarGStar>=1)&&(Pip3>=1))||((KdStarGStarP3k>=1)||(KdStarGStarPgStarP2>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,E(TRUE U (KdStarGStarP3kP3>=1))) * (((KdStarGStar>=1)&&(Pip3>=1))||((KdStarGStarP3k>=1)||(KdStarGStarPgStarP2>=1))))] = FALSE
(forward)formula 1,0,22.3464,443620,1,0,172,2.13109e+06,163,188,1649,2.89681e+06,354
FORMULA Angiogenesis-PT-05-CTLFireability-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: AX(EF(EX((GStarP3kP3>=1))))
=> equivalent forward existential formula: [(EY(Init) * !(E(TRUE U EX((GStarP3kP3>=1)))))] = FALSE
(forward)formula 2,1,23.1602,458932,1,0,176,2.218e+06,164,194,1649,2.99232e+06,368
FORMULA Angiogenesis-PT-05-CTLFireability-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: !(AG(!(AX((KdStarGStarP3>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(EX(!((KdStarGStarP3>=1)))))] != FALSE
(forward)formula 3,1,23.6432,467644,1,0,181,2.26834e+06,166,198,1650,3.05404e+06,373
FORMULA Angiogenesis-PT-05-CTLFireability-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: EF(EG((KdStarGStarPgStarP3P2>=1)))
=> equivalent forward existential formula: [FwdG(FwdU(Init,TRUE),(KdStarGStarPgStarP3P2>=1))] != FALSE
Hit Full ! (commute/partial/dont) 61/0/3
(forward)formula 4,1,23.6535,468172,1,0,181,2.2693e+06,174,199,1667,3.05523e+06,377
FORMULA Angiogenesis-PT-05-CTLFireability-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: EF((EG((((Pip3>=1)&&(Pten>=1))&&((KdStarPgStar>=1)&&(Pip2>=1)))) + AF(((KdStarGStarP3kP3>=1)||((GStarP3>=1)&&(Pg>=1))))))
=> equivalent forward existential formula: ([FwdG(FwdU(Init,TRUE),(((Pip3>=1)&&(Pten>=1))&&((KdStarPgStar>=1)&&(Pip2>=1))))] != FALSE + [(FwdU(Init,TRUE) * !(EG(!(((KdStarGStarP3kP3>=1)||((GStarP3>=1)&&(Pg>=1)))))))] != FALSE)
Hit Full ! (commute/partial/dont) 35/80/29
(forward)formula 5,1,23.7872,470020,1,0,182,2.27753e+06,181,200,1739,3.0678e+06,381
FORMULA Angiogenesis-PT-05-CTLFireability-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: E(((KdStarGStarP3kP3>=1)||((KdStarGP3>=1)||((Gab1>=1)&&(KdStar>=1)))) U (KdStarGStarP3kP3>=1))
=> equivalent forward existential formula: [(FwdU(Init,((KdStarGStarP3kP3>=1)||((KdStarGP3>=1)||((Gab1>=1)&&(KdStar>=1))))) * (KdStarGStarP3kP3>=1))] != FALSE
Hit Full ! (commute/partial/dont) 45/0/19
(forward)formula 6,1,26.0166,513052,1,0,185,2.47536e+06,188,201,1778,3.34189e+06,384
FORMULA Angiogenesis-PT-05-CTLFireability-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: !(((EX(((KdStarPg>=1)&&((DAG>=1)&&(Enz>=1)))) + EF((((KdStarGStarP3kStarP3>=1)&&(Pip2>=1))&&(PtP3P2>=1)))) + AG(((((GP3>=1)&&(KdStar>=1))&&((Gab1>=1)&&(KdStar>=1)))&&(((KdStarGStar>=1)&&(Pip3>=1))&&(KdStarG>=1))))))
=> equivalent forward existential formula: [(FwdU((Init * !((EX(((KdStarPg>=1)&&((DAG>=1)&&(Enz>=1)))) + E(TRUE U (((KdStarGStarP3kStarP3>=1)&&(Pip2>=1))&&(PtP3P2>=1)))))),TRUE) * !(((((GP3>=1)&&(KdStar>=1))&&((Gab1>=1)&&(KdStar>=1)))&&(((KdStarGStar>=1)&&(Pip3>=1))&&(KdStarG>=1)))))] != FALSE
(forward)formula 7,0,30.4589,570868,1,0,205,2.77242e+06,192,215,1795,3.65356e+06,412
FORMULA Angiogenesis-PT-05-CTLFireability-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: !(EF(AG(!((KdStarGStarPgStarP3P2>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U !(!((KdStarGStarPgStarP3P2>=1))))))] = FALSE
(forward)formula 8,0,31.3315,585124,1,0,209,2.84419e+06,192,219,1795,3.7344e+06,422
FORMULA Angiogenesis-PT-05-CTLFireability-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: AF(AG(EF(((KdStarGStarP3>=1)&&(P3k>=1)))))
=> equivalent forward existential formula: [FwdG(Init,!(!(E(TRUE U !(E(TRUE U ((KdStarGStarP3>=1)&&(P3k>=1))))))))] = FALSE
(forward)formula 9,0,40.8553,726100,1,0,222,3.63231e+06,193,232,1795,4.48403e+06,455
FORMULA Angiogenesis-PT-05-CTLFireability-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: EG(EF(((GStarP3>=1)&&(Pg>=1))))
=> equivalent forward existential formula: [FwdG(Init,E(TRUE U ((GStarP3>=1)&&(Pg>=1))))] != FALSE
(forward)formula 10,1,40.9859,728212,1,0,242,3.64121e+06,197,318,1795,4.49766e+06,548
FORMULA Angiogenesis-PT-05-CTLFireability-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: AX((AG(!(((KdStarGStarPgStarP3>=1)&&(Pip2>=1)))) + AG((PtP3>=1))))
=> equivalent forward existential formula: [(FwdU((EY(Init) * !(!(E(TRUE U !(!(((KdStarGStarPgStarP3>=1)&&(Pip2>=1)))))))),TRUE) * !((PtP3>=1)))] = FALSE
(forward)formula 11,0,41.1475,731116,1,0,244,3.65409e+06,200,321,1796,4.51682e+06,554
FORMULA Angiogenesis-PT-05-CTLFireability-11 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: !(EX(EF(((KdStarGStarPgStarP3P2>=1)&&(KdStarGStarPgP3>=1)))))
=> equivalent forward existential formula: [(FwdU(EY(Init),TRUE) * ((KdStarGStarPgStarP3P2>=1)&&(KdStarGStarPgP3>=1)))] = FALSE
(forward)formula 12,0,41.1486,731380,1,0,246,3.65412e+06,201,322,1797,4.51688e+06,555
FORMULA Angiogenesis-PT-05-CTLFireability-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: (EF(EG((KdStarGP3>=1))) + AX(AG((KdStarGStarPgP3>=1))))
=> equivalent forward existential formula: [(FwdU(EY((Init * !(E(TRUE U EG((KdStarGP3>=1)))))),TRUE) * !((KdStarGStarPgP3>=1)))] = FALSE
(forward)formula 13,1,43.705,782596,1,0,259,3.93712e+06,207,332,1798,4.82157e+06,579
FORMULA Angiogenesis-PT-05-CTLFireability-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: AG(AF(!(((KdStarGStarPgStarP3P2>=1)&&(KdStarGStarP3kP3>=1)))))
=> equivalent forward existential formula: [FwdG(FwdU(Init,TRUE),!(!(((KdStarGStarPgStarP3P2>=1)&&(KdStarGStarP3kP3>=1)))))] = FALSE
Hit Full ! (commute/partial/dont) 55/9/9
(forward)formula 14,0,43.7737,783388,1,0,260,3.94064e+06,214,333,1838,4.82659e+06,583
FORMULA Angiogenesis-PT-05-CTLFireability-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: !(EX((EF((GStarP3kP3>=1)) + ((Pip3>=1)&&(Pten>=1)))))
=> equivalent forward existential formula: ([(FwdU(EY(Init),TRUE) * (GStarP3kP3>=1))] = FALSE * [(EY(Init) * ((Pip3>=1)&&(Pten>=1)))] = FALSE)
(forward)formula 15,0,43.7886,783652,1,0,262,3.94067e+06,215,335,1838,4.82661e+06,584
FORMULA Angiogenesis-PT-05-CTLFireability-15 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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


BK_STOP 1553581413262

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ CTLFireability = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution CTLFireability -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ /home/mcc/BenchKit//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination CTLFireability -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -smt -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss8m -Xms40m -Xmx8192m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
Mar 26, 2019 6:22:47 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -greatspnpath, /home/mcc/BenchKit//greatspn/, -order, META, -manyOrder, -smt]
Mar 26, 2019 6:22:47 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 46 ms
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 39 places.
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 64 transitions.
Mar 26, 2019 6:22:48 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 11 ms
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 59 ms
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 64 transitions.
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.application.StructuralToGreatSPN handlePage
INFO: Transformed 39 places.
Mar 26, 2019 6:22:48 AM fr.lip6.move.gal.application.StructuralToGreatSPN handlePage
INFO: Transformed 64 transitions.
Mar 26, 2019 6:22:48 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLFireability.pnml.gal : 2 ms
Mar 26, 2019 6:22:48 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLFireability.ctl : 2 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="Angiogenesis-PT-05"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="itstoolsm"
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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3954"
echo " Executing tool itstoolsm"
echo " Input is Angiogenesis-PT-05, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r189-csrt-155225079800014"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Angiogenesis-PT-05.tgz
mv Angiogenesis-PT-05 execution
cd execution
if [ "CTLFireability" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "CTLFireability" = "UpperBounds" ] ; 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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.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 ;