Execution Chart

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

Trace from the execution

Formatting '/mnt/tpsp/fkordon/mcc2019-input.r063-ebro-155234658900086.qcow2', fmt=qcow2 size=4294967296 backing_file='/mnt/tpsp/fkordon/mcc2019-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
....................
=====================================================================
Generated by BenchKit 2-3954
Executing tool itstools
Input is Diffusion2D-PT-D10N050, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r063-ebro-155234658900086
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 428K
-rw-r--r-- 1 mcc users 3.8K Feb 10 21:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 19K Feb 10 21:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 6 17:52 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 6 17:52 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.8K Mar 10 17:31 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 109 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 347 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.5K Feb 4 23:30 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K Feb 4 23:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 4 22:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.9K Feb 4 22:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Feb 3 07:20 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K Feb 3 07:20 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.5K Jan 30 23:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 19K Jan 30 23:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 4 22:19 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 4 22:19 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 equiv_col
-rw-r--r-- 1 mcc users 8 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 255K 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 Diffusion2D-PT-D10N050-CTLFireability-00
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-01
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-02
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-03
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-04
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-05
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-06
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-07
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-08
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-09
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-10
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-11
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-12
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-13
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-14
FORMULA_NAME Diffusion2D-PT-D10N050-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1552767687342

Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903111103/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/CTLFireability.pnml.gal, -t, CGAL, -ctl, /home/mcc/execution/CTLFireability.ctl], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903111103/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/CTLFireability.pnml.gal -t CGAL -ctl /home/mcc/execution/CTLFireability.ctl
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,1.34191e+40,8.92466,104260,2,5051,5,695243,6,0,1087,676034,0


Converting to forward existential form...Done !
original formula: (AG((((!(cAMP__1_9_>=1))||(cAMP__8_2_>=1))||(cAMP__2_8_>=1))) * (((cAMP__2_3_>=1) + (EX((cAMP__8_9_>=1)) * (cAMP__4_8_>=1))) + EF((((cAMP__6_2_>=1)&&(cAMP__2_3_>=1))&&(cAMP__5_2_>=1)))))
=> equivalent forward existential formula: ([(FwdU(Init,TRUE) * !((((!(cAMP__1_9_>=1))||(cAMP__8_2_>=1))||(cAMP__2_8_>=1))))] = FALSE * ([(((Init * !(E(TRUE U (((cAMP__6_2_>=1)&&(cAMP__2_3_>=1))&&(cAMP__5_2_>=1))))) * !((cAMP__2_3_>=1))) * !(EX((cAMP__8_9_>=1))))] = FALSE * [(((Init * !(E(TRUE U (((cAMP__6_2_>=1)&&(cAMP__2_3_>=1))&&(cAMP__5_2_>=1))))) * !((cAMP__2_3_>=1))) * !((cAMP__4_8_>=1)))] = FALSE))
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,0,33.8356,256968,1,0,17,1.15393e+06,21,5,8860,897314,10
FORMULA Diffusion2D-PT-D10N050-CTLFireability-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: AG((((!((cAMP__3_3_>=1)||(cAMP__8_3_>=1)))||(((cAMP__9_4_>=1)||(cAMP__7_4_>=1))&&((cAMP__2_2_>=1)||(cAMP__2_8_>=1)))) + (EF((cAMP__1_3_>=1)) + EG((cAMP__2_7_>=1)))))
=> equivalent forward existential formula: [(((FwdU(Init,TRUE) * !(((!((cAMP__3_3_>=1)||(cAMP__8_3_>=1)))||(((cAMP__9_4_>=1)||(cAMP__7_4_>=1))&&((cAMP__2_2_>=1)||(cAMP__2_8_>=1)))))) * !(EG((cAMP__2_7_>=1)))) * !(E(TRUE U (cAMP__1_3_>=1))))] = FALSE
(forward)formula 1,1,34.0066,258288,1,0,18,1.15576e+06,22,5,8860,898438,13
FORMULA Diffusion2D-PT-D10N050-CTLFireability-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: EF(AG((cAMP__3_5_>=1)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U !((cAMP__3_5_>=1)))))] != FALSE
(forward)formula 2,0,34.6472,263832,1,0,19,1.17408e+06,24,5,8861,909113,16
FORMULA Diffusion2D-PT-D10N050-CTLFireability-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: !(EF(AG(!((cAMP__8_4_>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U !(!((cAMP__8_4_>=1))))))] = FALSE
(forward)formula 3,1,35.1669,267792,1,0,20,1.19419e+06,25,5,8861,926770,19
FORMULA Diffusion2D-PT-D10N050-CTLFireability-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: EF((((cAMP__4_10_>=1)&&(cAMP__8_9_>=1))&&(cAMP__1_2_>=1)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (((cAMP__4_10_>=1)&&(cAMP__8_9_>=1))&&(cAMP__1_2_>=1)))] != FALSE
(forward)formula 4,1,35.2188,268056,1,0,22,1.19717e+06,26,6,8863,933779,20
FORMULA Diffusion2D-PT-D10N050-CTLFireability-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: AG((cAMP__6_6_>=1))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !((cAMP__6_6_>=1)))] = FALSE
(forward)formula 5,0,35.2834,268584,1,0,25,1.19932e+06,28,8,8864,940233,21
FORMULA Diffusion2D-PT-D10N050-CTLFireability-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: AG(!(AX(!((cAMP__6_6_>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(EX(!(!((cAMP__6_6_>=1))))))] = FALSE
(forward)formula 6,0,40.0439,317424,1,0,27,1.51554e+06,28,10,8864,1.27283e+06,22
FORMULA Diffusion2D-PT-D10N050-CTLFireability-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: EF(((!((!(cAMP__1_2_>=1))||((cAMP__3_10_>=1)&&(cAMP__2_4_>=1))))&&(!(cAMP__7_2_>=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * ((!((!(cAMP__1_2_>=1))||((cAMP__3_10_>=1)&&(cAMP__2_4_>=1))))&&(!(cAMP__7_2_>=1))))] != FALSE
(forward)formula 7,1,40.2369,319800,1,0,29,1.52256e+06,29,11,8870,1.28247e+06,23
FORMULA Diffusion2D-PT-D10N050-CTLFireability-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: E(((((cAMP__5_2_>=1)&&(cAMP__5_8_>=1))||(!(cAMP__3_3_>=1)))&&((!(cAMP__6_7_>=1))||(!(cAMP__9_6_>=1)))) U AG((cAMP__9_3_>=1)))
=> equivalent forward existential formula: [(FwdU(Init,((((cAMP__5_2_>=1)&&(cAMP__5_8_>=1))||(!(cAMP__3_3_>=1)))&&((!(cAMP__6_7_>=1))||(!(cAMP__9_6_>=1))))) * !(E(TRUE U !((cAMP__9_3_>=1)))))] != FALSE
(forward)formula 8,0,40.8078,326136,1,0,30,1.54163e+06,31,11,8871,1.29314e+06,26
FORMULA Diffusion2D-PT-D10N050-CTLFireability-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: EF((((cAMP__9_10_>=1)&&(cAMP__3_7_>=1))&&((cAMP__3_1_>=1)&&(cAMP__6_1_>=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (((cAMP__9_10_>=1)&&(cAMP__3_7_>=1))&&((cAMP__3_1_>=1)&&(cAMP__6_1_>=1))))] != FALSE
(forward)formula 9,1,40.9137,327456,1,0,32,1.5499e+06,32,12,8874,1.30137e+06,27
FORMULA Diffusion2D-PT-D10N050-CTLFireability-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: EF(((AG((cAMP__4_9_>=1)) + !((cAMP__1_8_>=1))) * (EX((cAMP__8_1_>=1)) * EG((cAMP__8_2_>=1)))))
=> equivalent forward existential formula: [FwdG(((FwdU(Init,TRUE) * (!(E(TRUE U !((cAMP__4_9_>=1)))) + !((cAMP__1_8_>=1)))) * EX((cAMP__8_1_>=1))),(cAMP__8_2_>=1))] != FALSE
Hit Full ! (commute/partial/dont) 668/0/16
(forward)formula 10,1,61.3733,514296,1,0,39,2.74739e+06,47,15,9183,2.58457e+06,39
FORMULA Diffusion2D-PT-D10N050-CTLFireability-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: E(!(AG((cAMP__7_5_>=1))) U (((cAMP__6_9_>=1)&&((cAMP__10_2_>=1)||(cAMP__7_3_>=1))) * EG((cAMP__6_6_>=1))))
=> equivalent forward existential formula: [FwdG((FwdU(Init,!(!(E(TRUE U !((cAMP__7_5_>=1)))))) * ((cAMP__6_9_>=1)&&((cAMP__10_2_>=1)||(cAMP__7_3_>=1)))),(cAMP__6_6_>=1))] != FALSE
Hit Full ! (commute/partial/dont) 668/0/16
(forward)formula 11,1,68.3986,564984,1,0,42,2.9435e+06,57,17,9449,2.77516e+06,48
FORMULA Diffusion2D-PT-D10N050-CTLFireability-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: !(E(!(((cAMP__7_5_>=1)||(cAMP__4_2_>=1))) U ((cAMP__2_3_>=1)&&((cAMP__8_9_>=1)||(cAMP__7_4_>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,!(((cAMP__7_5_>=1)||(cAMP__4_2_>=1)))) * ((cAMP__2_3_>=1)&&((cAMP__8_9_>=1)||(cAMP__7_4_>=1))))] = FALSE
Hit Full ! (commute/partial/dont) 652/32/32
(forward)formula 12,0,81.425,664248,1,0,47,3.58424e+06,66,18,9683,3.39931e+06,52
FORMULA Diffusion2D-PT-D10N050-CTLFireability-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: (AG(!(AX((cAMP__8_7_>=1)))) + (cAMP__6_7_>=1))
=> equivalent forward existential formula: [(FwdU((Init * !((cAMP__6_7_>=1))),TRUE) * !(EX(!((cAMP__8_7_>=1)))))] = FALSE
(forward)formula 13,0,84.0887,697512,1,0,50,3.80505e+06,70,20,9685,3.62088e+06,55
FORMULA Diffusion2D-PT-D10N050-CTLFireability-13 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is FALSE !

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

original formula: E(!((((cAMP__8_5_>=1)||(cAMP__8_6_>=1))&&(!(cAMP__3_6_>=1)))) U !(((cAMP__3_2_>=1)||((cAMP__6_6_>=1)||(cAMP__3_2_>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,!((((cAMP__8_5_>=1)||(cAMP__8_6_>=1))&&(!(cAMP__3_6_>=1))))) * !(((cAMP__3_2_>=1)||((cAMP__6_6_>=1)||(cAMP__3_2_>=1)))))] != FALSE
Hit Full ! (commute/partial/dont) 638/0/46
(forward)formula 14,1,165.69,1323860,1,0,56,7.3773e+06,80,22,9821,7.5785e+06,59
FORMULA Diffusion2D-PT-D10N050-CTLFireability-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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

original formula: ((!(AX(((cAMP__1_2_>=1)||(cAMP__2_1_>=1)))) * (cAMP__8_10_>=1)) + (cAMP__6_6_>=1))
=> equivalent forward existential formula: ([(EY((Init * (cAMP__8_10_>=1))) * !(((cAMP__1_2_>=1)||(cAMP__2_1_>=1))))] != FALSE + [(Init * (cAMP__6_6_>=1))] != FALSE)
(forward)formula 15,1,165.815,1325972,1,0,60,7.38699e+06,83,23,9825,7.5885e+06,62
FORMULA Diffusion2D-PT-D10N050-CTLFireability-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL
Formula is TRUE !

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


BK_STOP 1552767858685

--------------------
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/ -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/ -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 16, 2019 8:21:30 PM 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/, -smt]
Mar 16, 2019 8:21:30 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Mar 16, 2019 8:21:31 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 165 ms
Mar 16, 2019 8:21:31 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 100 places.
Mar 16, 2019 8:21:31 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 684 transitions.
Mar 16, 2019 8:21:31 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 62 ms
Mar 16, 2019 8:21:31 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 198 ms
Mar 16, 2019 8:21:31 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLFireability.pnml.gal : 13 ms
Mar 16, 2019 8:21:31 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLFireability.ctl : 3 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="Diffusion2D-PT-D10N050"
export BK_EXAMINATION="CTLFireability"
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

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3954"
echo " Executing tool itstools"
echo " Input is Diffusion2D-PT-D10N050, 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 r063-ebro-155234658900086"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D10N050.tgz
mv Diffusion2D-PT-D10N050 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 ;