fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r285-csrt-152749176000249
Last Updated
June 26, 2018

About the Execution of ITS-Tools.L for DoubleExponent-PT-200

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15753.520 2812844.00 4450917.00 694.80 F?FF???????????? normal

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 3.7M
-rw-r--r-- 1 mcc users 3.8K May 30 21:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 22K May 30 21:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 15:09 CTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 29 15:09 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 24 11:17 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.8K May 24 11:17 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.5K May 28 09:50 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 28 09:50 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 28 08:04 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.0K May 28 08:04 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 24 11:17 NewModel
-rw-r--r-- 1 mcc users 3.5K May 28 06:20 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 17K May 28 06:20 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 112 May 26 06:29 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 350 May 26 06:29 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.3K May 27 03:45 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 21K May 27 03:45 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 28 07:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 28 07:31 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 24 11:17 equiv_col
-rw-r--r-- 1 mcc users 4 May 24 11:17 instance
-rw-r--r-- 1 mcc users 6 May 24 11:17 iscolored
-rw-r--r-- 1 mcc users 3.5M May 24 11:17 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is DoubleExponent-PT-200, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r285-csrt-152749176000249

=====================================================================

--------------------
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 DoubleExponent-PT-200-LTLFireability-00
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-01
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-02
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-03
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-04
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-05
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-06
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-07
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-08
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-09
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-10
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-11
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-12
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-13
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-14
FORMULA_NAME DoubleExponent-PT-200-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1527990533925

Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.201805241334/bin/convert-linux64, -i, /tmp/graph4778838352945549476.txt, -o, /tmp/graph4778838352945549476.bin, -w, /tmp/graph4778838352945549476.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.201805241334/bin/louvain-linux64, /tmp/graph4778838352945549476.bin, -l, -1, -v, -w, /tmp/graph4778838352945549476.weights, -q, 0, -e, 0.001], workingDir=null]
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-ltl-linux64, --gc-threshold, 2000000, -i, /home/mcc/execution/LTLFireability.pnml.gal, -t, CGAL, -LTL, /home/mcc/execution/LTLFireability.ltl, -c, -stutter-deadlock], workingDir=/home/mcc/execution]

its-ltl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805241334/bin/its-ltl-linux64 --gc-threshold 2000000 -i /home/mcc/execution/LTLFireability.pnml.gal -t CGAL -LTL /home/mcc/execution/LTLFireability.ltl -c -stutter-deadlock
Read 16 LTL properties
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]
Checking formula 0 : !((G(G(X(("(i15.u1642.p3936>=1)")U("((i19.u2071.p4839>=1)&&(i19.u2075.p4847>=1))"))))))
Formula 0 simplified : !GX("(i15.u1642.p3936>=1)" U "((i19.u2071.p4839>=1)&&(i19.u2075.p4847>=1))")
built 83 ordering constraints for composite.
built 261 ordering constraints for composite.
built 133 ordering constraints for composite.
built 177 ordering constraints for composite.
built 257 ordering constraints for composite.
built 295 ordering constraints for composite.
built 218 ordering constraints for composite.
built 171 ordering constraints for composite.
built 180 ordering constraints for composite.
built 176 ordering constraints for composite.
built 174 ordering constraints for composite.
built 224 ordering constraints for composite.
built 175 ordering constraints for composite.
built 284 ordering constraints for composite.
built 177 ordering constraints for composite.
built 263 ordering constraints for composite.
built 175 ordering constraints for composite.
built 219 ordering constraints for composite.
built 261 ordering constraints for composite.
built 215 ordering constraints for composite.
built 260 ordering constraints for composite.
built 181 ordering constraints for composite.
built 211 ordering constraints for composite.
built 136 ordering constraints for composite.
built 181 ordering constraints for composite.
built 179 ordering constraints for composite.
built 216 ordering constraints for composite.
built 223 ordering constraints for composite.
built 303 ordering constraints for composite.
built 176 ordering constraints for composite.
built 178 ordering constraints for composite.
built 175 ordering constraints for composite.
built 300 ordering constraints for composite.
built 302 ordering constraints for composite.
built 216 ordering constraints for composite.
built 177 ordering constraints for composite.
built 173 ordering constraints for composite.
built 221 ordering constraints for composite.
built 182 ordering constraints for composite.
built 179 ordering constraints for composite.
built 221 ordering constraints for composite.
built 134 ordering constraints for composite.
built 178 ordering constraints for composite.
Compilation finished in 186273 ms.
Running link step : CommandLine [args=[gcc, -shared, -o, gal.so, model.o], workingDir=/home/mcc/execution]
Link finished in 243 ms.
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, []([](X(((LTLAP0==true))U((LTLAP1==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
LTSmin run took 4503 ms.
FORMULA DoubleExponent-PT-200-LTLFireability-00 FALSE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, (LTLAP2==true), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>225 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, (LTLAP2==true), --buchi-type=spotba], workingDir=/home/mcc/execution]
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, X([](X(X((LTLAP3==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
LTSmin run took 4588 ms.
FORMULA DoubleExponent-PT-200-LTLFireability-02 FALSE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, <>(<>((X((LTLAP4==true)))U(X((LTLAP5==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
LTSmin run took 4686 ms.
FORMULA DoubleExponent-PT-200-LTLFireability-03 FALSE TECHNIQUES PARTIAL_ORDER EXPLICIT LTSMIN SAT_SMT
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, []((LTLAP6==true)), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>225 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, []((LTLAP6==true)), --buchi-type=spotba], workingDir=/home/mcc/execution]
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, (LTLAP7==true), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>225 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, (LTLAP7==true), --buchi-type=spotba], workingDir=/home/mcc/execution]
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, (<>(((LTLAP8==true))U((LTLAP9==true))))U([]((LTLAP10==true))), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>225 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, (<>(((LTLAP8==true))U((LTLAP9==true))))U([]((LTLAP10==true))), --buchi-type=spotba], workingDir=/home/mcc/execution]
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, <>((<>((LTLAP11==true)))U(<>(<>((LTLAP12==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>225 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, <>((<>((LTLAP11==true)))U(<>(<>((LTLAP12==true))))), --buchi-type=spotba], workingDir=/home/mcc/execution]
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, ((LTLAP13==true))U(([]((LTLAP14==true)))U((LTLAP15==true))), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTSmin timed out (>225 s) on command CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, -p, --pins-guards, --when, --ltl, ((LTLAP13==true))U(([]((LTLAP14==true)))U((LTLAP15==true))), --buchi-type=spotba], workingDir=/home/mcc/execution]
Running LTSmin : CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, [](([](<>((LTLAP16==true))))U(X((LTLAP17==true)))), --buchi-type=spotba], workingDir=/home/mcc/execution]
WARNING : LTS min runner thread failed on error :java.lang.RuntimeException: Unexpected exception when executing ltsmin :CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, [](([](<>((LTLAP16==true))))U(X((LTLAP17==true)))), --buchi-type=spotba], workingDir=/home/mcc/execution]
255
sparsehash FATAL ERROR: failed to allocate 34 groups

BK_STOP 1527993346769

--------------------
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 LTLFireability -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 LTLFireability -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 1:48:55 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -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 1:48:55 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 03, 2018 1:48:56 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 315 ms
Jun 03, 2018 1:48:56 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 10604 places.
Jun 03, 2018 1:48:56 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 9998 transitions.
Jun 03, 2018 1:48:56 AM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
Jun 03, 2018 1:48:58 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 1558 ms
Jun 03, 2018 1:48:59 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 729 ms
Begin: Sun Jun 3 01:49:00 2018

Computation of communities with the Newman-Girvan Modularity quality function

level 0:
start computation: Sun Jun 3 01:49:00 2018
network size: 10604 nodes, 35592 links, 19996 weight
quality increased from -0.00010225 to 0.396838
end computation: Sun Jun 3 01:49:00 2018
level 1:
start computation: Sun Jun 3 01:49:00 2018
network size: 4520 nodes, 27223 links, 19996 weight
quality increased from 0.396838 to 0.666577
end computation: Sun Jun 3 01:49:00 2018
level 2:
start computation: Sun Jun 3 01:49:00 2018
network size: 1309 nodes, 10879 links, 19996 weight
quality increased from 0.666577 to 0.860889
end computation: Sun Jun 3 01:49:00 2018
level 3:
start computation: Sun Jun 3 01:49:00 2018
network size: 266 nodes, 1298 links, 19996 weight
quality increased from 0.860889 to 0.942421
end computation: Sun Jun 3 01:49:00 2018
level 4:
start computation: Sun Jun 3 01:49:00 2018
network size: 76 nodes, 230 links, 19996 weight
quality increased from 0.942421 to 0.951203
end computation: Sun Jun 3 01:49:00 2018
level 5:
start computation: Sun Jun 3 01:49:00 2018
network size: 42 nodes, 124 links, 19996 weight
quality increased from 0.951203 to 0.951703
end computation: Sun Jun 3 01:49:00 2018
End: Sun Jun 3 01:49:00 2018
Total duration: 0 sec
0.951703
Jun 03, 2018 1:49:00 AM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
Jun 03, 2018 1:49:01 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 776 ms
Jun 03, 2018 1:49:02 AM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
Jun 03, 2018 1:49:11 AM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 2838 redundant transitions.
Jun 03, 2018 1:49:12 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/LTLFireability.pnml.gal : 159 ms
Jun 03, 2018 1:49:12 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSLTLTools
INFO: Time to serialize properties into /home/mcc/execution/LTLFireability.ltl : 2 ms
Jun 03, 2018 1:49:14 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 9998 transitions.
Jun 03, 2018 1:49:14 AM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Too many transitions (9998) to apply POR reductions. Disabling POR matrices.
Jun 03, 2018 1:49:15 AM fr.lip6.move.gal.gal2pins.Gal2PinsTransformerNext transform
INFO: Built C files in 2773ms conformant to PINS in folder :/home/mcc/execution
pins2lts-mc, 0.000: Registering PINS so language module
pins2lts-mc, 0.000, ** error **: out of memory trying to get 4294967296
java.lang.RuntimeException: Unexpected exception when executing ltsmin :CommandLine [args=[/home/mcc/BenchKit//lts_install_dir//bin/pins2lts-mc, ./gal.so, --threads=1, --when, --ltl, [](([](<>((LTLAP16==true))))U(X((LTLAP17==true)))), --buchi-type=spotba], workingDir=/home/mcc/execution]
255
at fr.lip6.move.gal.application.LTSminRunner.checkProperty(LTSminRunner.java:167)
at fr.lip6.move.gal.application.LTSminRunner.access$9(LTSminRunner.java:122)
at fr.lip6.move.gal.application.LTSminRunner$1.run(LTSminRunner.java:91)
at java.lang.Thread.run(Thread.java:748)
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="DoubleExponent-PT-200"
export BK_EXAMINATION="LTLFireability"
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/DoubleExponent-PT-200.tgz
mv DoubleExponent-PT-200 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 DoubleExponent-PT-200, examination is LTLFireability"
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-152749176000249"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '' LTLFireability.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 ;