fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r141-qhx2-152673582700163
Last Updated
June 26, 2018

About the Execution of ITS-Tools.L for Raft-PT-10

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15741.600 15942.00 27483.00 442.40 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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 416K
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 22K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 19K 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 5.8K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.3K May 26 09:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 26 09:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.8K May 26 09:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.3K May 26 09:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 101 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 339 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.7K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 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 241K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is Raft-PT-10, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r141-qhx2-152673582700163
=====================================================================


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

=== Now, execution of the tool begins

BK_START 1527911898683

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/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_1.0.0.201805241334/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 : Raft-PT-10-UpperBounds-00 with value :u63.p311
Read [bounds] property : Raft-PT-10-UpperBounds-01 with value :u54.p270
Read [bounds] property : Raft-PT-10-UpperBounds-02 with value :u59.p292
Read [bounds] property : Raft-PT-10-UpperBounds-03 with value :u82.p409
Read [bounds] property : Raft-PT-10-UpperBounds-04 with value :u90.p447
Read [bounds] property : Raft-PT-10-UpperBounds-05 with value :u57.p285
Read [bounds] property : Raft-PT-10-UpperBounds-06 with value :u66.p326
Read [bounds] property : Raft-PT-10-UpperBounds-07 with value :u84.p419
Read [bounds] property : Raft-PT-10-UpperBounds-08 with value :u101.p502
Read [bounds] property : Raft-PT-10-UpperBounds-09 with value :u93.p464
Read [bounds] property : Raft-PT-10-UpperBounds-10 with value :u13.p62
Read [bounds] property : Raft-PT-10-UpperBounds-11 with value :u9.p44
Read [bounds] property : Raft-PT-10-UpperBounds-12 with value :u82.p410
Read [bounds] property : Raft-PT-10-UpperBounds-13 with value :u95.p472
Read [bounds] property : Raft-PT-10-UpperBounds-14 with value :u5.p24
Read [bounds] property : Raft-PT-10-UpperBounds-15 with value :u49.p243
built 202 ordering constraints for composite.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
Raft\_PT\_10\_flat\_flat\_flat\_mod,1.57772e+71,3.36603,53196,318,21,81313,519,1701,193816,35,873,0
Total reachable state count : 1.57772181012063600203921847520911844267e+71

Verifying 16 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-00 :0 <= u63.p311 <= 1
FORMULA Raft-PT-10-UpperBounds-00 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-00,0,3.40801,53228,1,0,81313,519,2325,193816,54,873,6151
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-01 :0 <= u54.p270 <= 1
FORMULA Raft-PT-10-UpperBounds-01 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-01,0,3.4455,53292,1,0,81313,519,2529,193816,63,873,6191
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-02 :0 <= u59.p292 <= 1
FORMULA Raft-PT-10-UpperBounds-02 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-02,0,3.48196,53292,1,0,81313,519,2736,193816,74,873,6262
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-03 :0 <= u82.p409 <= 1
FORMULA Raft-PT-10-UpperBounds-03 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-03,0,3.5164,53292,1,0,81313,519,2933,193816,79,873,6377
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-04 :0 <= u90.p447 <= 1
FORMULA Raft-PT-10-UpperBounds-04 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-04,0,3.5507,53292,1,0,81313,519,3147,193816,79,873,6429
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-05 :0 <= u57.p285 <= 1
FORMULA Raft-PT-10-UpperBounds-05 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-05,0,3.58673,53292,1,0,81313,519,3304,193816,79,873,6552
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-06 :0 <= u66.p326 <= 1
FORMULA Raft-PT-10-UpperBounds-06 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-06,0,3.62239,53292,1,0,81313,519,3462,193816,79,873,6653
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-07 :0 <= u84.p419 <= 1
FORMULA Raft-PT-10-UpperBounds-07 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-07,0,3.65756,53292,1,0,81313,519,3628,193816,79,873,6738
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-08 :0 <= u101.p502 <= 1
FORMULA Raft-PT-10-UpperBounds-08 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-08,0,3.6925,53292,1,0,81313,519,3804,193816,79,873,6807
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-09 :0 <= u93.p464 <= 1
FORMULA Raft-PT-10-UpperBounds-09 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-09,0,3.72792,53292,1,0,81313,519,3982,193816,79,873,6992
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-10 :0 <= u13.p62 <= 1
FORMULA Raft-PT-10-UpperBounds-10 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-10,0,3.76326,53292,1,0,81313,519,4104,193816,79,873,7165
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-11 :0 <= u9.p44 <= 1
FORMULA Raft-PT-10-UpperBounds-11 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-11,0,3.79871,53292,1,0,81313,519,4253,193816,79,873,7284
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-12 :0 <= u82.p410 <= 1
FORMULA Raft-PT-10-UpperBounds-12 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-12,0,3.83382,53292,1,0,81313,519,4405,193816,79,873,7397
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-13 :0 <= u95.p472 <= 1
FORMULA Raft-PT-10-UpperBounds-13 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-13,0,3.86891,53292,1,0,81313,519,4547,193816,79,873,7530
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-14 :0 <= u5.p24 <= 1
FORMULA Raft-PT-10-UpperBounds-14 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-14,0,3.90449,53292,1,0,81313,519,4676,193816,79,873,7689
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property Raft-PT-10-UpperBounds-15 :0 <= u49.p243 <= 1
FORMULA Raft-PT-10-UpperBounds-15 1 TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL 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
Raft-PT-10-UpperBounds-15,0,3.94076,53292,1,0,81313,519,4817,193816,86,873,7828

BK_STOP 1527911914625

--------------------
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/ -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 UpperBounds -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 02, 2018 3:58:26 AM 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/, -louvain, -smt]
Jun 02, 2018 3:58:26 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 02, 2018 3:58:26 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 258 ms
Jun 02, 2018 3:58:26 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 508 places.
Jun 02, 2018 3:58:27 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 868 transitions.
Jun 02, 2018 3:58:27 AM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
Jun 02, 2018 3:58:27 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 70 ms
Jun 02, 2018 3:58:27 AM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
Jun 02, 2018 3:58:27 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 670 ms
Jun 02, 2018 3:58:28 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 298 ms
Jun 02, 2018 3:58:28 AM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
Jun 02, 2018 3:58:28 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 224 ms
Jun 02, 2018 3:58:28 AM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
Jun 02, 2018 3:58:28 AM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 738 redundant transitions.
Jun 02, 2018 3:58:28 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/UpperBounds.pnml.gal : 21 ms
Jun 02, 2018 3:58:28 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSTools
INFO: Time to serialize properties into /home/mcc/execution/UpperBounds.prop : 1 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="Raft-PT-10"
export BK_EXAMINATION="UpperBounds"
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/Raft-PT-10.tgz
mv Raft-PT-10 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 Raft-PT-10, 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 r141-qhx2-152673582700163"
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 ;