About the Execution of ITS-Tools for BART-PT-040
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
15752.980 | 1107527.00 | 1132442.00 | 479.30 | [undef] | Cannot compute |
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 28M
-rw-r--r-- 1 mcc users 1.5M May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 3.7M May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 974K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 2.4M 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 6.1K May 15 18:49 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 588K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 1.4M May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 510K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 1.2M May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.1M May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 2.6M May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 102 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 340 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 788K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 2.0M May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 14K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 26K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 15 18:49 equiv_col
-rw-r--r-- 1 mcc users 4 May 15 18:49 instance
-rw-r--r-- 1 mcc users 6 May 15 18:49 iscolored
-rw-r--r-- 1 mcc users 9.3M May 15 18:49 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstools
Input is BART-PT-040, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r032-ebro-152646310000094
=====================================================================
--------------------
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 BART-PT-040-CTLCardinality-00
FORMULA_NAME BART-PT-040-CTLCardinality-01
FORMULA_NAME BART-PT-040-CTLCardinality-02
FORMULA_NAME BART-PT-040-CTLCardinality-03
FORMULA_NAME BART-PT-040-CTLCardinality-04
FORMULA_NAME BART-PT-040-CTLCardinality-05
FORMULA_NAME BART-PT-040-CTLCardinality-06
FORMULA_NAME BART-PT-040-CTLCardinality-07
FORMULA_NAME BART-PT-040-CTLCardinality-08
FORMULA_NAME BART-PT-040-CTLCardinality-09
FORMULA_NAME BART-PT-040-CTLCardinality-10
FORMULA_NAME BART-PT-040-CTLCardinality-11
FORMULA_NAME BART-PT-040-CTLCardinality-12
FORMULA_NAME BART-PT-040-CTLCardinality-13
FORMULA_NAME BART-PT-040-CTLCardinality-14
FORMULA_NAME BART-PT-040-CTLCardinality-15
=== Now, execution of the tool begins
BK_START 1526863960562
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/CTLCardinality.pnml.gal, -t, CGAL, -ctl, /home/mcc/execution/CTLCardinality.ctl], workingDir=/home/mcc/execution]
its-ctl command run as :
/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805151631/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/CTLCardinality.pnml.gal -t CGAL -ctl /home/mcc/execution/CTLCardinality.ctl
No direction supplied, using forward translation only.
Parsed 16 CTL formulae.
sparsehash FATAL ERROR: failed to allocate 41 groups
BK_STOP 1526865068089
--------------------
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 CTLCardinality -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 CTLCardinality -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 21, 2018 12:52:43 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -its, -ltsminpath, /home/mcc/BenchKit//lts_install_dir/, -smt]
May 21, 2018 12:52:43 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
May 21, 2018 12:52:44 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 879 ms
May 21, 2018 12:52:45 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 5490 places.
May 21, 2018 12:52:46 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 8080 transitions.
May 21, 2018 12:53:01 AM fr.lip6.move.gal.instantiate.DomainAnalyzer computeVariableDomains
INFO: Found a total of 210 fixed domain variables (out of 5490 variables) in GAL type BART_PT_040
May 21, 2018 12:53:01 AM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: Found a total of 210 constant array cells/variables (out of 5490 variables) in type BART_PT_040
May 21, 2018 12:53:01 AM fr.lip6.move.gal.instantiate.Simplifier printConstantVars
INFO: NewDistTable_16_1_15,NewDistTable_36_1_35,DistStation_11,NewDistTable_28_2_26,StopTable_2_3,DistStation_28,NewDistTable_26_2_24,StopTable_3_6,NewDistTable_33_5_28,NewDistTable_27_2_25,NewDistTable_26_5_21,NewDistTable_5_1_4,NewDistTable_28_5_23,NewDistTable_14_1_13,NewDistTable_37_4_33,DistStation_23,DistStation_33,NewDistTable_4_1_3,NewDistTable_29_1_28,DistStation_39,NewDistTable_15_5_10,NewDistTable_25_4_21,DistStation_38,NewDistTable_18_2_16,NewDistTable_25_2_23,NewDistTable_39_2_37,NewDistTable_17_1_16,NewDistTable_29_3_26,NewDistTable_4_3_1,NewDistTable_7_4_3,NewDistTable_37_2_35,NewDistTable_23_4_19,DistStation_12,NewDistTable_19_3_16,NewDistTable_29_4_25,DistStation_7,NewDistTable_29_2_27,NewDistTable_27_4_23,NewDistTable_21_2_19,NewDistTable_9_3_6,NewDistTable_21_1_20,NewDistTable_22_3_19,NewDistTable_11_5_6,NewDistTable_20_3_17,NewDistTable_6_2_4,NewDistTable_9_4_5,NewDistTable_36_2_34,NewDistTable_23_5_18,NewDistTable_19_5_14,NewDistTable_24_5_19,NewDistTable_12_3_9,NewDistTable_31_3_28,NewDistTable_26_4_22,NewDistTable_15_3_12,NewDistTable_9_1_8,NewDistTable_2_2_0,NewDistTable_28_3_25,NewDistTable_27_5_22,NewDistTable_32_2_30,NewDistTable_27_1_26,NewDistTable_18_5_13,NewDistTable_40_2_38,DistStation_34,NewDistTable_36_4_32,NewDistTable_11_1_10,DistStation_18,NewDistTable_8_1_7,NewDistTable_12_2_10,NewDistTable_12_1_11,NewDistTable_2_1_1,DistStation_30,NewDistTable_24_1_23,NewDistTable_8_4_4,NewDistTable_31_5_26,NewDistTable_5_2_3,NewDistTable_12_5_7,NewDistTable_26_3_23,NewDistTable_3_2_1,NewDistTable_14_4_10,NewDistTable_13_3_10,NewDistTable_13_5_8,NewDistTable_24_4_20,NewDistTable_24_3_21,NewDistTable_21_5_16,NewDistTable_35_3_32,StopTable_5_15,NewDistTable_25_3_22,NewDistTable_22_4_18,NewDistTable_23_1_22,NewDistTable_34_1_33,NewDistTable_37_1_36,NewDistTable_17_4_13,StopTable_4_10,NewDistTable_14_2_12,NewDistTable_38_1_37,DistStation_24,NewDistTable_31_2_29,NewDistTable_5_3_2,NewDistTable_27_3_24,NewDistTable_33_3_30,DistStation_26,NewDistTable_11_2_9,NewDistTable_20_1_19,NewDistTable_29_5_24,DistStation_27,NewDistTable_10_3_7,DistStation_6,NewDistTable_11_4_7,DistStation_35,NewDistTable_32_5_27,NewDistTable_3_1_2,NewDistTable_30_2_28,NewDistTable_31_1_30,DistStation_14,NewDistTable_11_3_8,DistStation_32,NewDistTable_30_3_27,DistStation_5,DistStation_21,DistStation_15,NewDistTable_16_4_12,NewDistTable_26_1_25,NewDistTable_24_2_22,NewDistTable_34_5_29,NewDistTable_6_1_5,NewDistTable_20_5_15,NewDistTable_30_5_25,NewDistTable_34_3_31,NewDistTable_12_4_8,NewDistTable_33_1_32,DistStation_16,NewDistTable_38_3_35,NewDistTable_10_4_6,NewDistTable_32_4_28,NewDistTable_22_5_17,NewDistTable_10_1_9,NewDistTable_18_3_15,NewDistTable_14_3_11,NewDistTable_23_2_21,StopTable_1_1,DistStation_8,DistStation_29,DistStation_31,NewDistTable_17_2_15,NewDistTable_13_1_12,NewDistTable_15_1_14,NewDistTable_7_3_4,NewDistTable_32_3_29,NewDistTable_17_5_12,DistStation_17,NewDistTable_13_2_11,NewDistTable_33_4_29,NewDistTable_28_1_27,NewDistTable_23_3_20,DistStation_10,DistStation_19,NewDistTable_18_1_17,NewDistTable_7_1_6,NewDistTable_17_3_14,NewDistTable_30_4_26,NewDistTable_7_2_5,NewDistTable_16_2_14,NewDistTable_19_2_17,NewDistTable_21_3_18,NewDistTable_22_1_21,NewDistTable_36_3_33,NewDistTable_14_5_9,NewDistTable_39_3_36,NewDistTable_38_2_36,NewDistTable_35_4_31,NewDistTable_18_4_14,NewDistTable_6_3_3,NewDistTable_9_2_7,NewDistTable_22_2_20,NewDistTable_34_2_32,NewDistTable_28_4_24,DistStation_36,NewDistTable_25_1_24,NewDistTable_39_1_38,NewDistTable_4_2_2,NewDistTable_37_3_34,NewDistTable_34_4_30,NewDistTable_35_2_33,NewDistTable_21_4_17,NewDistTable_31_4_27,NewDistTable_20_2_18,NewDistTable_15_4_11,DistStation_37,NewDistTable_33_2_31,NewDistTable_13_4_9,NewDistTable_15_2_13,NewDistTable_19_1_18,DistStation_22,NewDistTable_40_1_39,NewDistTable_16_5_11,NewDistTable_10_2_8,NewDistTable_32_1_31,DistStation_40,DistStation_20,NewDistTable_19_4_15,DistStation_9,NewDistTable_8_2_6,DistStation_25,NewDistTable_8_3_5,NewDistTable_35_1_34,NewDistTable_16_3_13,DistStation_13,NewDistTable_20_4_16,NewDistTable_30_1_29,NewDistTable_25_5_20,
May 21, 2018 12:53:02 AM fr.lip6.move.gal.instantiate.Simplifier simplifyConstantVariables
INFO: Removed 210 constant variables :NewDistTable_16_1_15=1, NewDistTable_36_1_35=1, DistStation_11=1, NewDistTable_28_2_26=1, StopTable_2_3=1, DistStation_28=1, NewDistTable_26_2_24=1, StopTable_3_6=1, NewDistTable_33_5_28=1, NewDistTable_27_2_25=1, NewDistTable_26_5_21=1, NewDistTable_5_1_4=1, NewDistTable_28_5_23=1, NewDistTable_14_1_13=1, NewDistTable_37_4_33=1, DistStation_23=1, DistStation_33=1, NewDistTable_4_1_3=1, NewDistTable_29_1_28=1, DistStation_39=1, NewDistTable_15_5_10=1, NewDistTable_25_4_21=1, DistStation_38=1, NewDistTable_18_2_16=1, NewDistTable_25_2_23=1, NewDistTable_39_2_37=1, NewDistTable_17_1_16=1, NewDistTable_29_3_26=1, NewDistTable_4_3_1=1, NewDistTable_7_4_3=1, NewDistTable_37_2_35=1, NewDistTable_23_4_19=1, DistStation_12=1, NewDistTable_19_3_16=1, NewDistTable_29_4_25=1, DistStation_7=1, NewDistTable_29_2_27=1, NewDistTable_27_4_23=1, NewDistTable_21_2_19=1, NewDistTable_9_3_6=1, NewDistTable_21_1_20=1, NewDistTable_22_3_19=1, NewDistTable_11_5_6=1, NewDistTable_20_3_17=1, NewDistTable_6_2_4=1, NewDistTable_9_4_5=1, NewDistTable_36_2_34=1, NewDistTable_23_5_18=1, NewDistTable_19_5_14=1, NewDistTable_24_5_19=1, NewDistTable_12_3_9=1, NewDistTable_31_3_28=1, NewDistTable_26_4_22=1, NewDistTable_15_3_12=1, NewDistTable_9_1_8=1, NewDistTable_2_2_0=1, NewDistTable_28_3_25=1, NewDistTable_27_5_22=1, NewDistTable_32_2_30=1, NewDistTable_27_1_26=1, NewDistTable_18_5_13=1, NewDistTable_40_2_38=1, DistStation_34=1, NewDistTable_36_4_32=1, NewDistTable_11_1_10=1, DistStation_18=1, NewDistTable_8_1_7=1, NewDistTable_12_2_10=1, NewDistTable_12_1_11=1, NewDistTable_2_1_1=1, DistStation_30=1, NewDistTable_24_1_23=1, NewDistTable_8_4_4=1, NewDistTable_31_5_26=1, NewDistTable_5_2_3=1, NewDistTable_12_5_7=1, NewDistTable_26_3_23=1, NewDistTable_3_2_1=1, NewDistTable_14_4_10=1, NewDistTable_13_3_10=1, NewDistTable_13_5_8=1, NewDistTable_24_4_20=1, NewDistTable_24_3_21=1, NewDistTable_21_5_16=1, NewDistTable_35_3_32=1, StopTable_5_15=1, NewDistTable_25_3_22=1, NewDistTable_22_4_18=1, NewDistTable_23_1_22=1, NewDistTable_34_1_33=1, NewDistTable_37_1_36=1, NewDistTable_17_4_13=1, StopTable_4_10=1, NewDistTable_14_2_12=1, NewDistTable_38_1_37=1, DistStation_24=1, NewDistTable_31_2_29=1, NewDistTable_5_3_2=1, NewDistTable_27_3_24=1, NewDistTable_33_3_30=1, DistStation_26=1, NewDistTable_11_2_9=1, NewDistTable_20_1_19=1, NewDistTable_29_5_24=1, DistStation_27=1, NewDistTable_10_3_7=1, DistStation_6=1, NewDistTable_11_4_7=1, DistStation_35=1, NewDistTable_32_5_27=1, NewDistTable_3_1_2=1, NewDistTable_30_2_28=1, NewDistTable_31_1_30=1, DistStation_14=1, NewDistTable_11_3_8=1, DistStation_32=1, NewDistTable_30_3_27=1, DistStation_5=1, DistStation_21=1, DistStation_15=1, NewDistTable_16_4_12=1, NewDistTable_26_1_25=1, NewDistTable_24_2_22=1, NewDistTable_34_5_29=1, NewDistTable_6_1_5=1, NewDistTable_20_5_15=1, NewDistTable_30_5_25=1, NewDistTable_34_3_31=1, NewDistTable_12_4_8=1, NewDistTable_33_1_32=1, DistStation_16=1, NewDistTable_38_3_35=1, NewDistTable_10_4_6=1, NewDistTable_32_4_28=1, NewDistTable_22_5_17=1, NewDistTable_10_1_9=1, NewDistTable_18_3_15=1, NewDistTable_14_3_11=1, NewDistTable_23_2_21=1, StopTable_1_1=1, DistStation_8=1, DistStation_29=1, DistStation_31=1, NewDistTable_17_2_15=1, NewDistTable_13_1_12=1, NewDistTable_15_1_14=1, NewDistTable_7_3_4=1, NewDistTable_32_3_29=1, NewDistTable_17_5_12=1, DistStation_17=1, NewDistTable_13_2_11=1, NewDistTable_33_4_29=1, NewDistTable_28_1_27=1, NewDistTable_23_3_20=1, DistStation_10=1, DistStation_19=1, NewDistTable_18_1_17=1, NewDistTable_7_1_6=1, NewDistTable_17_3_14=1, NewDistTable_30_4_26=1, NewDistTable_7_2_5=1, NewDistTable_16_2_14=1, NewDistTable_19_2_17=1, NewDistTable_21_3_18=1, NewDistTable_22_1_21=1, NewDistTable_36_3_33=1, NewDistTable_14_5_9=1, NewDistTable_39_3_36=1, NewDistTable_38_2_36=1, NewDistTable_35_4_31=1, NewDistTable_18_4_14=1, NewDistTable_6_3_3=1, NewDistTable_9_2_7=1, NewDistTable_22_2_20=1, NewDistTable_34_2_32=1, NewDistTable_28_4_24=1, DistStation_36=1, NewDistTable_25_1_24=1, NewDistTable_39_1_38=1, NewDistTable_4_2_2=1, NewDistTable_37_3_34=1, NewDistTable_34_4_30=1, NewDistTable_35_2_33=1, NewDistTable_21_4_17=1, NewDistTable_31_4_27=1, NewDistTable_20_2_18=1, NewDistTable_15_4_11=1, DistStation_37=1, NewDistTable_33_2_31=1, NewDistTable_13_4_9=1, NewDistTable_15_2_13=1, NewDistTable_19_1_18=1, DistStation_22=1, NewDistTable_40_1_39=1, NewDistTable_16_5_11=1, NewDistTable_10_2_8=1, NewDistTable_32_1_31=1, DistStation_40=1, DistStation_20=1, NewDistTable_19_4_15=1, DistStation_9=1, NewDistTable_8_2_6=1, DistStation_25=1, NewDistTable_8_3_5=1, NewDistTable_35_1_34=1, NewDistTable_16_3_13=1, DistStation_13=1, NewDistTable_20_4_16=1, NewDistTable_30_1_29=1, NewDistTable_25_5_20=1
May 21, 2018 12:53:02 AM fr.lip6.move.gal.instantiate.Simplifier simplifyConstantVariables
INFO: Simplified 26745 expressions due to constant valuations.
May 21, 2018 12:53:02 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 4482 ms
May 21, 2018 12:53:02 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLCardinality.pnml.gal : 152 ms
May 21, 2018 12:53:03 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLCardinality.ctl : 69 ms
ITS-tools command line returned an error code 1
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="BART-PT-040"
export BK_EXAMINATION="CTLCardinality"
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/BART-PT-040.tgz
mv BART-PT-040 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 BART-PT-040, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r032-ebro-152646310000094"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 '
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 ;