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)
.......
=====================================================================
Generated by BenchKit 2-3254
Executing tool itstools
Input is S_DrinkVendingMachine-PT-02, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r110-blw3-149441614300223
=====================================================================

--------------------
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 DrinkVendingMachine-COL-02-ReachabilityCardinality-0
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-1
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-10
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-11
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-12
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-13
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-14
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-15
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-2
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-3
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-4
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-5
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-6
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-7
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-8
FORMULA_NAME DrinkVendingMachine-COL-02-ReachabilityCardinality-9

=== Now, execution of the tool begins

BK_START 1496417534558

FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-3 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-2 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-1 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE

Using solver YICES2 to compute partial order matrices.
Built C files in :
/home/mcc/execution
its-reach command run as :

/home/mcc/BenchKit/eclipse/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201705302212/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.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine\_PT\_02\_flat\_flat,1024,0.037485,5988,2,35,5,577,6,0,167,440,0
Total reachable state count : 1024

Verifying 12 reachability properties.
Invariant property DrinkVendingMachine-COL-02-ReachabilityCardinality-0 is true.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-0 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-0,0,0.03888,6056,1,0,5,577,7,0,176,440,0
Reachability property DrinkVendingMachine-COL-02-ReachabilityCardinality-4 does not hold.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-4 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : DrinkVendingMachine-COL-02-ReachabilityCardinality-4

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-4,0,0.03918,6260,1,0,5,577,8,0,179,440,0
Reachability property DrinkVendingMachine-COL-02-ReachabilityCardinality-5 does not hold.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-5 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : DrinkVendingMachine-COL-02-ReachabilityCardinality-5

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-5,0,0.039384,6392,1,0,5,577,9,0,182,440,0
Invariant property DrinkVendingMachine-COL-02-ReachabilityCardinality-6 is true.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-6 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-6,0,0.041967,6392,1,0,5,577,10,0,214,440,0
Reachability property DrinkVendingMachine-COL-02-ReachabilityCardinality-7 does not hold.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-7 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : DrinkVendingMachine-COL-02-ReachabilityCardinality-7

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-7,0,0.042296,6392,1,0,5,577,11,0,215,440,0
Reachability property DrinkVendingMachine-COL-02-ReachabilityCardinality-8 does not hold.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-8 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : DrinkVendingMachine-COL-02-ReachabilityCardinality-8

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-8,0,0.044005,6392,1,0,5,577,12,0,242,440,0
Invariant property DrinkVendingMachine-COL-02-ReachabilityCardinality-9 is true.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-9 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-9,0,0.045541,6392,1,0,5,577,13,0,268,440,0
Reachability property DrinkVendingMachine-COL-02-ReachabilityCardinality-11 does not hold.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : DrinkVendingMachine-COL-02-ReachabilityCardinality-11

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-11,0,0.049504,6392,1,0,5,577,14,0,356,440,0
Invariant property DrinkVendingMachine-COL-02-ReachabilityCardinality-12 is true.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-12,0,0.049831,6392,1,0,5,577,14,0,356,440,0
Invariant property DrinkVendingMachine-COL-02-ReachabilityCardinality-13 is true.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-13,0,0.05817,6392,1,0,5,577,15,0,522,440,0
Invariant property DrinkVendingMachine-COL-02-ReachabilityCardinality-14 is true.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-14,0,0.062089,6392,1,0,5,577,16,0,600,440,0
Reachability property DrinkVendingMachine-COL-02-ReachabilityCardinality-15 does not hold.
FORMULA DrinkVendingMachine-COL-02-ReachabilityCardinality-15 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
No reachable states exhibit your property : DrinkVendingMachine-COL-02-ReachabilityCardinality-15

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
DrinkVendingMachine-COL-02-ReachabilityCardinality-15,0,0.062413,6392,1,0,5,577,17,0,601,440,0
Presburger conditions satisfied. Using coverability to approximate state space in K-Induction.
// Phase 1: matrix 72 rows 24 cols
invariant : 1'wait_7 + 1'ready_7= 1
invariant : 1'wait_2 + 1'ready_2= 1
invariant : 1'theProducts_2 + 1'productSlots_2= 1
invariant : 1'wait_4 + 1'ready_4= 1
invariant : 1'wait_6 + 1'ready_6= 1
invariant : 1'theOptions_1 + 1'optionSlots_1= 1
invariant : 1'theOptions_2 + 1'optionSlots_2= 1
invariant : 1'theProducts_1 + 1'productSlots_1= 1
invariant : 1'wait_5 + 1'ready_5= 1
invariant : 1'wait_3 + 1'ready_3= 1
invariant : 1'wait_8 + 1'ready_8= 1
invariant : 1'wait_1 + 1'ready_1= 1
Exit code :0

BK_STOP 1496417537552

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

+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
+ ulimit -s 65536
+ java -Dosgi.requiredJavaVersion=1.6 -Xss8m -Xms40m -Xmx8192m -Declipse.pde.launch=true -Dfile.encoding=UTF-8 -classpath /home/mcc/BenchKit//eclipse/plugins/org.eclipse.equinox.launcher_1.3.201.v20161025-1711.jar org.eclipse.equinox.launcher.Main -application fr.lip6.move.gal.application.pnmcc -data /home/mcc/BenchKit//workspace -os linux -ws gtk -arch x86_64 -nl en_US -consoleLog -pnfolder /home/mcc/execution -examination ReachabilityCardinality -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -smt
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 76 ms
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 24 places.
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 72 transitions.
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 69 ms
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 32 ms
Jun 02, 2017 3:32:16 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/ReachabilityCardinality.pnml.gal : 18 ms
Jun 02, 2017 3:32:16 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/ReachabilityCardinality.prop : 2 ms
Jun 02, 2017 3:32:16 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 51 ms
Jun 02, 2017 3:32:17 PM fr.lip6.move.gal.gal2smt.bmc.KInductionSolver computeAndDeclareInvariants
INFO: Computed 12 place invariants in 17 ms
Jun 02, 2017 3:32:17 PM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd checkProperties
INFO: Ran tautology test, simplified 0 / 0 in 323 ms.
Jun 02, 2017 3:32:17 PM fr.lip6.move.gal.itstools.Runner runTool
INFO: Standard error output from running tool CommandLine [args=[/home/mcc/BenchKit/eclipse/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201705302212/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]
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-0 with value :(!((((productSlots_1+productSlots_2)>=3)&&((productSlots_1+productSlots_2)>=2))&&(((productSlots_1+productSlots_2)>=3)&&((((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)<=(productSlots_1+productSlots_2)))))
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-4 with value :((theProducts_1+theProducts_2)>=3)
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-5 with value :((optionSlots_1+optionSlots_2)>=3)
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-6 with value :(((((((((wait_1+wait_2)+wait_3)+wait_4)+wait_5)+wait_6)+wait_7)+wait_8)>=1)||(((optionSlots_1+optionSlots_2)>=2)&&(((((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)>=1)||((((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)<=(productSlots_1+productSlots_2)))))
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-7 with value :((productSlots_1+productSlots_2)>=3)
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-8 with value :(((((optionSlots_1+optionSlots_2)<=(theProducts_1+theProducts_2))||((theProducts_1+theProducts_2)<=(optionSlots_1+optionSlots_2)))&&(!((productSlots_1+productSlots_2)>=1)))&&(((theOptions_1+theOptions_2)>=3)&&(((theProducts_1+theProducts_2)<=(((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8))||((optionSlots_1+optionSlots_2)<=(((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)))))
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-9 with value :((((((((wait_1+wait_2)+wait_3)+wait_4)+wait_5)+wait_6)+wait_7)+wait_8)>=2)
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-11 with value :((((optionSlots_1+optionSlots_2)<=(((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8))||((((((((wait_1+wait_2)+wait_3)+wait_4)+wait_5)+wait_6)+wait_7)+wait_8)<=(((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)))&&(!(((((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)>=1)||((theOptions_1+theOptions_2)>=1))))
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-12 with value :((((((((wait_1+wait_2)+wait_3)+wait_4)+wait_5)+wait_6)+wait_7)+wait_8)>=2)
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-13 with value :((((theProducts_1+theProducts_2)>=3)||(((optionSlots_1+optionSlots_2)<=(((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8))||((((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)<=(theProducts_1+theProducts_2))))||((((((((ready_1+ready_3)+ready_2)+ready_5)+ready_4)+ready_7)+ready_6)+ready_8)<=(((((((wait_1+wait_2)+wait_3)+wait_4)+wait_5)+wait_6)+wait_7)+wait_8)))
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-14 with value :(!((!((productSlots_1+productSlots_2)<=(theOptions_1+theOptions_2)))&&(!((productSlots_1+productSlots_2)<=(((((((wait_1+wait_2)+wait_3)+wait_4)+wait_5)+wait_6)+wait_7)+wait_8)))))
Read property : DrinkVendingMachine-COL-02-ReachabilityCardinality-15 with value :((theOptions_1+theOptions_2)>=3)

Jun 02, 2017 3:32:17 PM fr.lip6.move.gal.gal2smt.Gal2SMTFrontEnd checkProperties
WARNING: Interrupting SMT solver.
Jun 02, 2017 3:32:17 PM fr.lip6.move.gal.application.Application$SMTRunner$1 run
INFO: SMT solved 0/ 12 properties. Interrupting other analysis methods.

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="S_DrinkVendingMachine-PT-02"
export BK_EXAMINATION="ReachabilityCardinality"
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

tar xzf /home/mcc/BenchKit/INPUTS/S_DrinkVendingMachine-PT-02.tgz
mv S_DrinkVendingMachine-PT-02 execution

# this is for BenchKit: explicit launching of the test

cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-3254"
echo " Executing tool itstools"
echo " Input is S_DrinkVendingMachine-PT-02, 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 r110-blw3-149441614300223"
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 ;