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 892K
-rw-r--r-- 1 mcc users 5.1K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 17K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 66K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:50 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.9K 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 12K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 44K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 5.6K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 27K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 114 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 352 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 28K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 104K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 2.2K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 5.2K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 15 18:50 equiv_col
-rw-r--r-- 1 mcc users 3 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 484K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstools
Input is PermAdmissibility-PT-01, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r116-csrt-152666475400471
=====================================================================

--------------------
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 PermAdmissibility-PT-01-UpperBounds-00
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-01
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-02
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-03
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-04
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-05
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-06
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-07
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-08
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-09
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-10
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-11
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-12
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-13
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-14
FORMULA_NAME PermAdmissibility-PT-01-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1527181085621

Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/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_1.0.0.201805151631/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 : PermAdmissibility-PT-01-UpperBounds-00 with value :aux13_2+aux13_1+aux13_0+aux13_7+aux13_3+aux13_4+aux13_5+aux13_6
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-01 with value :in2_2+in2_3
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-02 with value :out8_1+out8_0+out8_3+out8_2+out8_6+out8_7+out8_4+out8_5
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-03 with value :out5_1+out5_2+out5_0+out5_5+out5_6+out5_3+out5_4+out5_7
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-04 with value :out8_1+out8_0+out8_3+out8_2+out8_6+out8_7+out8_4+out8_5
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-05 with value :aux6_0+aux6_5+aux6_1+aux6_4
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-06 with value :aux15_2+aux15_1+aux15_0+aux15_6+aux15_5+aux15_4+aux15_3+aux15_7
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-07 with value :aux10_0+aux10_2+aux10_1+aux10_4+aux10_3+aux10_5+aux10_6+aux10_7
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-08 with value :aux12_7
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-09 with value :aux7_2
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-10 with value :aux12_6
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-11 with value :c14
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-12 with value :aux14_6
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-13 with value :aux12_3
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-14 with value :out4_1
Read [bounds] property : PermAdmissibility-PT-01-UpperBounds-15 with value :aux11_6
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
PermAdmissibility\_PT\_01\_flat,52537,11.3926,230824,2,49937,5,147174,6,0,1098,59698,0
Total reachable state count : 52537

Verifying 16 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 2
Bounds property PermAdmissibility-PT-01-UpperBounds-00 :0 <= aux13_2+aux13_1+aux13_0+aux13_7+aux13_3+aux13_4+aux13_5+aux13_6 <= 2
FORMULA PermAdmissibility-PT-01-UpperBounds-00 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
PermAdmissibility-PT-01-UpperBounds-00,0,11.4216,231092,1,0,7,147174,9,1,1380,59698,4
Min sum of variable value : 0
Maximum sum along a path : 2
Bounds property PermAdmissibility-PT-01-UpperBounds-01 :0 <= in2_2+in2_3 <= 2
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-01,0,11.4791,231164,1,0,8,147174,10,1,1704,59698,5
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-02 :0 <= out8_1+out8_0+out8_3+out8_2+out8_6+out8_7+out8_4+out8_5 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-02,0,11.6197,231164,1,0,9,147174,11,1,1950,70064,6
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-03 :0 <= out5_1+out5_2+out5_0+out5_5+out5_6+out5_3+out5_4+out5_7 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-03,0,11.7004,231164,1,0,10,147174,12,1,2092,96125,7
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-04 :0 <= out8_1+out8_0+out8_3+out8_2+out8_6+out8_7+out8_4+out8_5 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-04,0,11.7008,231164,1,0,10,147174,12,1,2092,96125,7
Min sum of variable value : 0
Maximum sum along a path : 2
Bounds property PermAdmissibility-PT-01-UpperBounds-05 :0 <= aux6_0+aux6_5+aux6_1+aux6_4 <= 2
FORMULA PermAdmissibility-PT-01-UpperBounds-05 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
PermAdmissibility-PT-01-UpperBounds-05,0,11.7639,231164,1,0,11,147174,13,1,2394,98247,8
Min sum of variable value : 0
Maximum sum along a path : 2
Bounds property PermAdmissibility-PT-01-UpperBounds-06 :0 <= aux15_2+aux15_1+aux15_0+aux15_6+aux15_5+aux15_4+aux15_3+aux15_7 <= 2
FORMULA PermAdmissibility-PT-01-UpperBounds-06 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
PermAdmissibility-PT-01-UpperBounds-06,0,11.7787,231164,1,0,12,147174,14,1,2488,99163,9
Min sum of variable value : 0
Maximum sum along a path : 2
Bounds property PermAdmissibility-PT-01-UpperBounds-07 :0 <= aux10_0+aux10_2+aux10_1+aux10_4+aux10_3+aux10_5+aux10_6+aux10_7 <= 2
FORMULA PermAdmissibility-PT-01-UpperBounds-07 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
PermAdmissibility-PT-01-UpperBounds-07,0,11.909,231164,1,0,13,147174,15,1,2688,116882,10
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-08 :0 <= aux12_7 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-08,0,11.9531,231164,1,0,14,147174,16,1,2839,117031,11
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-09 :0 <= aux7_2 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-09,0,12.0263,231164,1,0,15,147174,17,1,3146,117358,12
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-10 :0 <= aux12_6 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-10,0,12.0703,231164,1,0,16,147174,18,1,3303,117519,13
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-11 :0 <= c14 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-11,0,12.1333,231164,1,0,17,147174,19,1,3546,117783,14
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-12 :0 <= aux14_6 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-12,0,12.1948,231164,1,0,18,147174,20,1,3753,118177,15
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-13 :0 <= aux12_3 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-13,0,12.2468,231164,1,0,19,147174,21,1,3926,118372,16
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-14 :0 <= out4_1 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-14,0,12.2476,231164,1,0,20,147174,22,1,3955,118398,17
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property PermAdmissibility-PT-01-UpperBounds-15 :0 <= aux11_6 <= 1
FORMULA PermAdmissibility-PT-01-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
PermAdmissibility-PT-01-UpperBounds-15,0,12.3156,231164,1,0,21,147174,23,1,4206,118757,18

BK_STOP 1527181100920

--------------------
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 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 -consoleLog -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
May 24, 2018 4:58:07 PM 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]
May 24, 2018 4:58:07 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
May 24, 2018 4:58:07 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 106 ms
May 24, 2018 4:58:07 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 168 places.
May 24, 2018 4:58:07 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 592 transitions.
May 24, 2018 4:58:07 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 35 ms
May 24, 2018 4:58:08 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 249 ms
May 24, 2018 4:58:08 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/UpperBounds.pnml.gal : 10 ms
May 24, 2018 4:58:08 PM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/UpperBounds.prop : 0 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="PermAdmissibility-PT-01"
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

tar xzf /home/mcc/BenchKit/INPUTS/PermAdmissibility-PT-01.tgz
mv PermAdmissibility-PT-01 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 itstools"
echo " Input is PermAdmissibility-PT-01, 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 r116-csrt-152666475400471"
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 ;