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 184K
-rw-r--r-- 1 mcc users 3.8K May 30 22:39 CTLCardinality.txt
-rw-r--r-- 1 mcc users 22K May 30 22:39 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K May 29 16:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 29 16:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 24 11:17 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.2K May 24 11:17 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.3K May 28 10:48 LTLCardinality.txt
-rw-r--r-- 1 mcc users 9.3K May 28 10:48 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 28 08:57 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.8K May 28 08:57 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 24 11:17 NewModel
-rw-r--r-- 1 mcc users 3.6K May 28 07:29 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K May 28 07:29 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 111 May 26 06:33 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 349 May 26 06:33 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.8K May 27 05:04 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K May 27 05:04 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 28 07:35 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 28 07:35 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 24 11:17 equiv_col
-rw-r--r-- 1 mcc users 7 May 24 11:17 instance
-rw-r--r-- 1 mcc users 6 May 24 11:17 iscolored
-rw-r--r-- 1 mcc users 6.9K May 24 11:17 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is RefineWMG-PT-002003, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r285-csrt-152749176500637
=====================================================================

--------------------
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 RefineWMG-PT-002-003-ReachabilityCardinality-00
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-01
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-02
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-03
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-04
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-05
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-06
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-07
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-08
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-09
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-10
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-11
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-12
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-13
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-14
FORMULA_NAME RefineWMG-PT-002-003-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1528036838736

FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Using solver Z3 to compute partial order matrices.
Built C files in :
/home/mcc/execution
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805241334/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/ReachabilityCardinality.pnml.gal, -t, CGAL, -reachable-file, ReachabilityCardinality.prop, --nowitness], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805241334/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/ReachabilityCardinality.pnml.gal -t CGAL -reachable-file ReachabilityCardinality.prop --nowitness
Loading property file ReachabilityCardinality.prop.
Read [invariant] property : RefineWMG-PT-002-003-ReachabilityCardinality-00 with value :(((!(psecond>=3))||(!(p>=1)))||(pprime>=1))
Read [invariant] property : RefineWMG-PT-002-003-ReachabilityCardinality-01 with value :(((p6<=p)||((p<=psecond)||(p5>=2)))||((!(p9>=3))&&(!(p10<=pterce))))
Read [reachable] property : RefineWMG-PT-002-003-ReachabilityCardinality-06 with value :((pterce>=1)&&(((p<=p10)&&(p3<=p1))&&(!(p2>=1))))
Read [reachable] property : RefineWMG-PT-002-003-ReachabilityCardinality-07 with value :((!((psecond>=1)||(p7>=1)))&&((p8<=p)||(!(p8>=2))))
Read [reachable] property : RefineWMG-PT-002-003-ReachabilityCardinality-10 with value :(((!(pprime>=1))&&(p1<=p))&&((p3<=pprime)||(!(p2<=psecond))))
Read [invariant] property : RefineWMG-PT-002-003-ReachabilityCardinality-11 with value :(psecond>=1)
Read [invariant] property : RefineWMG-PT-002-003-ReachabilityCardinality-12 with value :((!(p9>=1))||((p9<=psecond)||(!(psecond>=3))))
Read [invariant] property : RefineWMG-PT-002-003-ReachabilityCardinality-13 with value :(((!(p10>=1))&&((p8<=p7)&&(p2>=3)))||(((p7>=1)||(p6<=p4))||((p5>=1)||(p6>=1))))
Read [reachable] property : RefineWMG-PT-002-003-ReachabilityCardinality-14 with value :(((!(p5>=1))&&(!(p3>=1)))&&((pterce<=p7)||(pterce>=2)))
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG\_PT\_002\_003\_flat\_flat,184320,0.036359,3988,2,123,5,2034,6,0,70,2031,0
Total reachable state count : 184320

Verifying 9 reachability properties.
Invariant property RefineWMG-PT-002-003-ReachabilityCardinality-00 does not hold.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-00,7168,0.037698,4020,2,105,6,2034,7,0,84,2031,0
Invariant property RefineWMG-PT-002-003-ReachabilityCardinality-01 does not hold.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-01,3840,0.041171,4140,2,123,7,2034,8,0,143,2031,0
Reachability property RefineWMG-PT-002-003-ReachabilityCardinality-06 is true.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-06,8400,0.042724,4376,2,88,8,2034,9,0,185,2031,0
Reachability property RefineWMG-PT-002-003-ReachabilityCardinality-07 is true.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-07,2240,0.044282,4376,2,64,9,2034,10,0,212,2031,0
Reachability property RefineWMG-PT-002-003-ReachabilityCardinality-10 is true.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-10,64,0.045523,4376,2,24,10,2034,11,0,223,2031,0
Invariant property RefineWMG-PT-002-003-ReachabilityCardinality-11 does not hold.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-11,30720,0.045902,4376,2,118,11,2034,12,0,223,2031,0
Invariant property RefineWMG-PT-002-003-ReachabilityCardinality-12 is true.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-12,0,0.046864,4376,1,0,11,2034,13,0,239,2031,0
Invariant property RefineWMG-PT-002-003-ReachabilityCardinality-13 is true.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-13,0,0.048979,4376,1,0,11,2034,14,0,271,2031,0
Reachability property RefineWMG-PT-002-003-ReachabilityCardinality-14 is true.
FORMULA RefineWMG-PT-002-003-ReachabilityCardinality-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING USE_NUPN

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
RefineWMG-PT-002-003-ReachabilityCardinality-14,1,0.049643,4376,2,15,12,2034,15,0,279,2031,0
Running compilation step : CommandLine [args=[gcc, -c, -I/home/mcc/BenchKit//lts_install_dir//include, -I., -std=c99, -fPIC, -O3, model.c], workingDir=/home/mcc/execution]
WARNING : LTS min runner thread was asked to interrupt. Dying gracefully.

BK_STOP 1528036842297

--------------------
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 ReachabilityCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -louvain -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 ReachabilityCardinality -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -louvain -smt -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss8m -Xms40m -Xmx8192m -Dfile.encoding=UTF-8 -Dosgi.requiredJavaVersion=1.6
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -louvain, -smt]
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 30 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 14 places.
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 11 transitions.
Jun 03, 2018 2:40:41 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 6 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 48 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 9 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/ReachabilityCardinality.pnml.gal : 1 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/ReachabilityCardinality.prop : 2 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 19 ms
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 11 transitions.
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 11 transitions.
Jun 03, 2018 2:40:41 PM org.smtlib.impl.Script execute
WARNING: Script execution failed on command (declare-fun s () (Array Int (Array Int Int))) with error
Jun 03, 2018 2:40:41 PM org.smtlib.impl.Script execute
WARNING: Script execution failed on command (declare-fun s () (Array Int (Array Int Int))) with error
Jun 03, 2018 2:40:41 PM org.smtlib.impl.Script execute
WARNING: Script execution failed on command (define-fun _enabledsrc__0 ((src (Array Int Int))) Bool (>= (select src 4) 5)) with error (error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
Skipping mayMatrices nes/nds Error when declaring system variables to SMT solver.(error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
java.lang.RuntimeException: Error when declaring system variables to SMT solver.(error "Error writing to Z3 solver: java.io.IOException: Broken pipe")
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.init(NextBMCSolver.java:93)
at fr.lip6.move.gal.gal2smt.bmc.KInductionSolver.init(KInductionSolver.java:59)
at fr.lip6.move.gal.gal2smt.bmc.NecessaryEnablingsolver.init(NecessaryEnablingsolver.java:71)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.printLabels(Gal2PinsTransformerNext.java:471)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.printDependencyMatrix(Gal2PinsTransformerNext.java:209)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.buildBodyFile(Gal2PinsTransformerNext.java:85)
at fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext.transform(Gal2PinsTransformerNext.java:830)
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:71)
at java.lang.Thread.run(Thread.java:748)
Jun 03, 2018 2:40:41 PM org.smtlib.impl.Script execute
WARNING: Script execution failed on command (define-fun _enabledsrc__0 ((src (Array Int Int))) Bool (>= (select src 4) 5)) with error (error "Error writing to Z3 solver: java.io.IOException: Stream closed")
java.lang.RuntimeException: Error when declaring system variables to SMT solver.(error "Error writing to Z3 solver: java.io.IOException: Stream closed")
at fr.lip6.move.gal.gal2smt.bmc.NextBMCSolver.init(NextBMCSolver.java:93)
at fr.lip6.move.gal.gal2smt.smt.ISMTSolver.init(ISMTSolver.java:17)
at fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd.checkProperties(Gal2SMTFrontEnd.java:94)
at fr.lip6.move.gal.application.SMTRunner$2.run(SMTRunner.java:110)
at java.lang.Thread.run(Thread.java:748)
Jun 03, 2018 2:40:41 PM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Built C files in 125ms conformant to PINS in folder :/home/mcc/execution

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="RefineWMG-PT-002003"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="itstoolsl"
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/RefineWMG-PT-002003.tgz
mv RefineWMG-PT-002003 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 itstoolsl"
echo " Input is RefineWMG-PT-002003, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r285-csrt-152749176500637"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.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 ;