fond
Model Checking Contest 2019
9th edition, Prague, Czech Republic, April 7, 2019 (TOOLympics)
Execution of r030-smll-155225126800218
Last Updated
Apr 15, 2019

About the Execution of ITS-Tools for CircularTrains-PT-768

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
5560.090 1665203.00 1676218.00 6343.20 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2019-input.r030-smll-155225126800218.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2019-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
..................
=====================================================================
Generated by BenchKit 2-3957
Executing tool itstools
Input is CircularTrains-PT-768, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r030-smll-155225126800218
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 748K
-rw-r--r-- 1 mcc users 4.0K Feb 9 08:35 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Feb 9 08:35 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K Feb 5 07:19 CTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 5 07:19 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 108 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 346 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.6K Feb 4 23:07 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K Feb 4 23:07 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K Feb 4 22:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 7.2K Feb 4 22:32 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Feb 2 01:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Feb 2 01:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.3K Jan 29 15:24 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K Jan 29 15:24 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 4 22:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K 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 4 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 591K 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 positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME CircularTrains-PT-768-UpperBounds-00
FORMULA_NAME CircularTrains-PT-768-UpperBounds-01
FORMULA_NAME CircularTrains-PT-768-UpperBounds-02
FORMULA_NAME CircularTrains-PT-768-UpperBounds-03
FORMULA_NAME CircularTrains-PT-768-UpperBounds-04
FORMULA_NAME CircularTrains-PT-768-UpperBounds-05
FORMULA_NAME CircularTrains-PT-768-UpperBounds-06
FORMULA_NAME CircularTrains-PT-768-UpperBounds-07
FORMULA_NAME CircularTrains-PT-768-UpperBounds-08
FORMULA_NAME CircularTrains-PT-768-UpperBounds-09
FORMULA_NAME CircularTrains-PT-768-UpperBounds-10
FORMULA_NAME CircularTrains-PT-768-UpperBounds-11
FORMULA_NAME CircularTrains-PT-768-UpperBounds-12
FORMULA_NAME CircularTrains-PT-768-UpperBounds-13
FORMULA_NAME CircularTrains-PT-768-UpperBounds-14
FORMULA_NAME CircularTrains-PT-768-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1552537270495

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

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903111103/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/UpperBounds.pnml.gal -t CGAL -reachable-file UpperBounds.prop --nowitness
Loading property file UpperBounds.prop.
Read [bounds] property : CircularTrains-PT-768-UpperBounds-00 with value :F658
Read [bounds] property : CircularTrains-PT-768-UpperBounds-01 with value :F92
Read [bounds] property : CircularTrains-PT-768-UpperBounds-02 with value :Section_745
Read [bounds] property : CircularTrains-PT-768-UpperBounds-03 with value :F94
Read [bounds] property : CircularTrains-PT-768-UpperBounds-04 with value :F232
Read [bounds] property : CircularTrains-PT-768-UpperBounds-05 with value :Section_475
Read [bounds] property : CircularTrains-PT-768-UpperBounds-06 with value :F87
Read [bounds] property : CircularTrains-PT-768-UpperBounds-07 with value :Section_474
Read [bounds] property : CircularTrains-PT-768-UpperBounds-08 with value :Section_768
Read [bounds] property : CircularTrains-PT-768-UpperBounds-09 with value :Section_443
Read [bounds] property : CircularTrains-PT-768-UpperBounds-10 with value :Section_659
Read [bounds] property : CircularTrains-PT-768-UpperBounds-11 with value :Section_745
Read [bounds] property : CircularTrains-PT-768-UpperBounds-12 with value :F72
Read [bounds] property : CircularTrains-PT-768-UpperBounds-13 with value :Section_620
Read [bounds] property : CircularTrains-PT-768-UpperBounds-14 with value :F529
Read [bounds] property : CircularTrains-PT-768-UpperBounds-15 with value :F313
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
CircularTrains\_PT\_768\_flat,3.40389e+177,1644.7,5304480,2,787066,5,3.0319e+07,6,0,6915,3.21094e+07,0
Total reachable state count : 3.403889716704395992803912881367198306118e+177

Verifying 16 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-00 :0 <= F658 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-00 1 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
CircularTrains-PT-768-UpperBounds-00,0,1644.97,5305624,1,0,7,3.0319e+07,9,1,8892,3.21094e+07,4
Min sum of variable value : 0
Maximum sum along a path : 2
Bounds property CircularTrains-PT-768-UpperBounds-01 :0 <= F92 <= 2
FORMULA CircularTrains-PT-768-UpperBounds-01 2 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
CircularTrains-PT-768-UpperBounds-01,0,1646.98,5305904,1,0,8,3.0319e+07,10,1,11610,3.21094e+07,5
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-02 :0 <= Section_745 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-02 1 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
CircularTrains-PT-768-UpperBounds-02,0,1647.01,5305904,1,0,9,3.0319e+07,11,1,11703,3.21094e+07,6
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-03 :0 <= F94 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-03 1 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
CircularTrains-PT-768-UpperBounds-03,0,1648.69,5305904,1,0,10,3.0319e+07,12,1,14412,3.21094e+07,7
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-04 :0 <= F232 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-04 1 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
CircularTrains-PT-768-UpperBounds-04,0,1650.16,5305904,1,0,11,3.0319e+07,13,1,16563,3.21094e+07,8
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-05 :0 <= Section_475 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-05 1 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
CircularTrains-PT-768-UpperBounds-05,0,1650.71,5305904,1,0,12,3.0319e+07,14,1,17742,3.21094e+07,9
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-06 :0 <= F87 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-06 1 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
CircularTrains-PT-768-UpperBounds-06,0,1652.52,5305904,1,0,13,3.0319e+07,15,1,20479,3.21094e+07,10
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-07 :0 <= Section_474 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-07 1 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
CircularTrains-PT-768-UpperBounds-07,0,1653.11,5305904,1,0,14,3.0319e+07,16,1,21662,3.21094e+07,11
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-08 :0 <= Section_768 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-08 1 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
CircularTrains-PT-768-UpperBounds-08,0,1653.38,5305904,1,0,15,3.0319e+07,17,1,22433,3.21094e+07,12
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-09 :0 <= Section_443 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-09 1 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
CircularTrains-PT-768-UpperBounds-09,0,1654.14,5305904,1,0,16,3.0319e+07,18,1,23740,3.21094e+07,13
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-10 :0 <= Section_659 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-10 1 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
CircularTrains-PT-768-UpperBounds-10,0,1654.25,5305904,1,0,17,3.0319e+07,19,1,24177,3.21094e+07,14
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-11 :0 <= Section_745 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-11 1 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
CircularTrains-PT-768-UpperBounds-11,0,1654.27,5305904,1,0,17,3.0319e+07,19,1,24177,3.21094e+07,14
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-12 :0 <= F72 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-12 1 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
CircularTrains-PT-768-UpperBounds-12,0,1656.07,5305904,1,0,18,3.0319e+07,20,1,26974,3.21094e+07,15
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-13 :0 <= Section_620 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-13 1 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
CircularTrains-PT-768-UpperBounds-13,0,1656.22,5305904,1,0,19,3.0319e+07,21,1,27567,3.21094e+07,16
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-14 :0 <= F529 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-14 1 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
CircularTrains-PT-768-UpperBounds-14,0,1656.6,5305904,1,0,20,3.0319e+07,22,1,28526,3.21094e+07,17
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property CircularTrains-PT-768-UpperBounds-15 :0 <= F313 <= 1
FORMULA CircularTrains-PT-768-UpperBounds-15 1 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
CircularTrains-PT-768-UpperBounds-15,0,1657.87,5305904,1,0,21,3.0319e+07,23,1,30351,3.21094e+07,18
ITS tools runner thread asked to quit. Dying gracefully.

BK_STOP 1552538935698

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution UpperBounds -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 UpperBounds -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 14, 2019 4:21:13 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -smt]
Mar 14, 2019 4:21:13 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Mar 14, 2019 4:21:13 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 228 ms
Mar 14, 2019 4:21:13 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 1536 places.
Mar 14, 2019 4:21:13 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 768 transitions.
Mar 14, 2019 4:21:13 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 60 ms
Mar 14, 2019 4:21:14 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 384 ms
Mar 14, 2019 4:21:14 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/UpperBounds.pnml.gal : 14 ms
Mar 14, 2019 4:21:14 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/UpperBounds.prop : 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="CircularTrains-PT-768"
export BK_EXAMINATION="UpperBounds"
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 2-3957"
echo " Executing tool itstools"
echo " Input is CircularTrains-PT-768, 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 r030-smll-155225126800218"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CircularTrains-PT-768.tgz
mv CircularTrains-PT-768 execution
cd execution
if [ "UpperBounds" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "UpperBounds" = "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 [ "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 ;