fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r018-qhx1-152646242700030
Last Updated
June 26, 2018

About the Execution of Irma.full for Angiogenesis-PT-20

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
6978.610 3503278.00 3611436.00 9075.90 10 19 20 20 20 20 20 20 20 20 20 20 20 20 20 10 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 212K
-rw-r--r-- 1 mcc users 4.0K 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 2.5K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:49 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K May 15 18:49 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.7K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K 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 9.4K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K 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 109 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 347 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.6K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K 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 3.8K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:49 equiv_col
-rw-r--r-- 1 mcc users 3 May 15 18:49 instance
-rw-r--r-- 1 mcc users 6 May 15 18:49 iscolored
-rw-r--r-- 1 mcc users 33K May 15 18:49 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool irma4mcc-full
Input is Angiogenesis-PT-20, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r018-qhx1-152646242700030
=====================================================================


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

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

The expected result is a vector of positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-00
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-01
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-02
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-03
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-04
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-05
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-06
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-07
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-08
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-09
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-10
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-11
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-12
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-13
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-14
FORMULA_NAME Angiogenesis-PT-20-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1526762729998


BK_STOP 1526766233276

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

Prefix is 65b80f64.
Reading known information in /usr/share/mcc4mcc/65b80f64-known.json.
Reading learned information in /usr/share/mcc4mcc/65b80f64-learned.json.
Reading value translations in /usr/share/mcc4mcc/65b80f64-values.json.
Using directory /home/mcc/execution for input, as it contains a model.pnml file.
Using Angiogenesis-PT-20 as instance name.
Using Angiogenesis as model name.
Using algorithm or tool decision-tree.
Model characteristics are: {'Examination': 'UpperBounds', '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': False, 'Sink Place': True, 'Source Transition': False, 'Sink Transition': False, 'Loop Free': True, 'Conservative': False, 'Sub-Conservative': False, 'Nested Units': False, 'Safe': None, 'Deadlock': True, 'Reversible': False, 'Quasi Live': False, 'Live': False}.
Known tools are: [{'Time': 2085091, 'Memory': 7085.16, 'Tool': 'itstools'}, {'Time': 2238749, 'Memory': 7086, 'Tool': 'itstools'}, {'Time': 3540136, 'Memory': 12940.69, 'Tool': 'lola'}, {'Time': 3540226, 'Memory': 13132.48, 'Tool': 'lola'}].
Learned tools are: [{'Tool': 'gspn'}].
UpperBounds itstools Angiogenesis-PT-20...
May 19, 2018 8:45:48 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, UpperBounds]
May 19, 2018 8:45:48 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /mcc-data/model.pnml
May 19, 2018 8:45:49 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 73 ms
May 19, 2018 8:45:49 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 39 places.
May 19, 2018 8:45:49 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 64 transitions.
May 19, 2018 8:45:49 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /mcc-data/model.pnml.img.gal : 22 ms
May 19, 2018 8:45:49 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 117 ms
May 19, 2018 8:45:49 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /mcc-data/UpperBounds.pnml.gal : 5 ms
May 19, 2018 8:45:50 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /mcc-data/UpperBounds.prop : 2 ms
Invoking ITS tools like this :CommandLine [args=[/usr/share/itscl/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201804131302/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /mcc-data/UpperBounds.pnml.gal, -t, CGAL, -reachable-file, UpperBounds.prop, --nowitness], workingDir=/mcc-data]

its-reach command run as :

/usr/share/itscl/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201804131302/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /mcc-data/UpperBounds.pnml.gal -t CGAL -reachable-file UpperBounds.prop --nowitness
Loading property file UpperBounds.prop.
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-00 with value :KdStarGStarPgStarP3P2
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-01 with value :GP3
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-02 with value :PtP2
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-03 with value :KdStarGStarP3
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-04 with value :KdStarGStarPgP3
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-05 with value :KdStarGStarP3kStar
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-06 with value :Gab1
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-07 with value :Pg
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-08 with value :AktStar
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-09 with value :KdStarGStarPg
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-10 with value :Pip3
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-11 with value :PtP2
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-12 with value :KdStarGStarP3kStar
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-13 with value :GStarP3kP3
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-14 with value :PtP3
Read [bounds] property : Angiogenesis-PT-20-UpperBounds-15 with value :KdStarGStarP3kStarP3P2
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis\_PT\_20\_flat,3.5182e+17,3341.21,6378296,2,1.95882e+06,5,4.12411e+07,6,0,220,3.80363e+07,0
Total reachable state count : 351820047967344849

Verifying 16 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 10
Bounds property Angiogenesis-PT-20-UpperBounds-00 :0 <= KdStarGStarPgStarP3P2 <= 10
FORMULA Angiogenesis-PT-20-UpperBounds-00 10 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-00,0,3351.73,6378296,1,0,7,4.12411e+07,9,1,321,3.80363e+07,4
Min sum of variable value : 0
Maximum sum along a path : 19
Bounds property Angiogenesis-PT-20-UpperBounds-01 :0 <= GP3 <= 19
FORMULA Angiogenesis-PT-20-UpperBounds-01 19 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-01,0,3364.92,6378360,1,0,8,4.12411e+07,10,1,386,3.80363e+07,5
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-02 :0 <= PtP2 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-02 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-02,0,3378.11,6378360,1,0,9,4.12411e+07,11,1,476,3.80363e+07,6
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-03 :0 <= KdStarGStarP3 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-03 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-03,0,3382.89,6378360,1,0,10,4.12411e+07,12,1,522,3.80363e+07,7
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-04 :0 <= KdStarGStarPgP3 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-04 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-04,0,3385.92,6378360,1,0,11,4.12411e+07,13,1,562,3.80363e+07,8
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-05 :0 <= KdStarGStarP3kStar <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-05 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-05,0,3399.66,6378360,1,0,12,4.12411e+07,14,1,658,3.80363e+07,9
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-06 :0 <= Gab1 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-06 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-06,0,3414.39,6378360,1,0,13,4.12411e+07,15,1,722,3.80363e+07,10
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-07 :0 <= Pg <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-07 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-07,0,3414.39,6378360,1,0,14,4.12411e+07,16,1,746,3.80363e+07,11
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-08 :0 <= AktStar <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-08 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-08,0,3425.36,6378360,1,0,15,4.12411e+07,17,1,830,3.80363e+07,12
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-09 :0 <= KdStarGStarPg <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-09 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-09,0,3425.42,6378360,1,0,16,4.12411e+07,18,1,860,3.80363e+07,13
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-10 :0 <= Pip3 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-10 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-10,0,3437.95,6378360,1,0,17,4.12411e+07,19,1,936,3.80363e+07,14
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-11 :0 <= PtP2 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-11 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-11,0,3437.95,6378360,1,0,17,4.12411e+07,19,1,936,3.80363e+07,14
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-12 :0 <= KdStarGStarP3kStar <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-12 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-12,0,3437.95,6378360,1,0,17,4.12411e+07,19,1,936,3.80363e+07,14
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-13 :0 <= GStarP3kP3 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-13 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-13,0,3445.7,6378360,1,0,18,4.12411e+07,20,1,986,3.80363e+07,15
Min sum of variable value : 0
Maximum sum along a path : 20
Bounds property Angiogenesis-PT-20-UpperBounds-14 :0 <= PtP3 <= 20
FORMULA Angiogenesis-PT-20-UpperBounds-14 20 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-14,0,3459.58,6378360,1,0,19,4.12411e+07,21,1,1066,3.80363e+07,16
Min sum of variable value : 0
Maximum sum along a path : 10
Bounds property Angiogenesis-PT-20-UpperBounds-15 :0 <= KdStarGStarP3kStarP3P2 <= 10
FORMULA Angiogenesis-PT-20-UpperBounds-15 10 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Angiogenesis-PT-20-UpperBounds-15,0,3473.83,6378360,1,0,20,4.12411e+07,22,1,1154,3.80363e+07,17

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-20"
export BK_EXAMINATION="UpperBounds"
export BK_TOOL="irma4mcc-full"
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/Angiogenesis-PT-20.tgz
mv Angiogenesis-PT-20 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-full"
echo " Input is Angiogenesis-PT-20, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r018-qhx1-152646242700030"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '' UpperBounds.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 ;