About the Execution of ITS-Tools for HexagonalGrid-PT-110
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
274.210 | 2740.00 | 4774.00 | 49.80 | 6 6 1 1 1 1 1 1 6 1 1 6 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
Formatting '/local/x2003239/mcc2019-input.r085-csrt-155246554600542.qcow2', fmt=qcow2 size=4294967296 backing_file=/local/x2003239/mcc2019-input.qcow2 encryption=off cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
....................
=====================================================================
Generated by BenchKit 2-3954
Executing tool itstools
Input is HexagonalGrid-PT-110, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r085-csrt-155246554600542
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 192K
-rw-r--r-- 1 mcc users 3.7K Feb 11 01:39 CTLCardinality.txt
-rw-r--r-- 1 mcc users 20K Feb 11 01:39 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Feb 7 01:25 CTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 7 01:25 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 107 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 345 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.6K Feb 4 23:56 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K Feb 4 23:56 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 4 22:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 9.7K Feb 4 22:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Feb 3 08:50 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Feb 3 08:50 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.7K Jan 31 03:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 22K Jan 31 03:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 4 22:21 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 4 22:21 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 equiv_col
-rw-r--r-- 1 mcc users 4 Jan 29 09:34 instance
-rw-r--r-- 1 mcc users 6 Jan 29 09:34 iscolored
-rw-r--r-- 1 mcc users 0 Jan 29 09:34 model-fix.log
-rwxr-xr-x 1 mcc users 29K Mar 10 17:31 model.pnml
--------------------
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 HexagonalGrid-PT-110-UpperBounds-00
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-01
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-02
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-03
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-04
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-05
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-06
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-07
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-08
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-09
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-10
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-11
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-12
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-13
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-14
FORMULA_NAME HexagonalGrid-PT-110-UpperBounds-15
=== Now, execution of the tool begins
BK_START 1552790367197
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903111103/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_1.0.0.201903111103/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 : HexagonalGrid-PT-110-UpperBounds-00 with value :pb4_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-01 with value :pb5_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-02 with value :pil3_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-03 with value :pi4_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-04 with value :po3_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-05 with value :pi3_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-06 with value :pil1_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-07 with value :pol2_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-08 with value :pb2_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-09 with value :po4_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-10 with value :po5_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-11 with value :pb4_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-12 with value :pol5_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-13 with value :pol1_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-14 with value :pil3_1_1
Read [bounds] property : HexagonalGrid-PT-110-UpperBounds-15 with value :pol5_1_1
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
HexagonalGrid\_PT\_110\_flat,40193,0.079414,5240,2,377,5,8491,6,0,169,8100,0
Total reachable state count : 40193
Verifying 16 reachability properties.
Min sum of variable value : 0
Maximum sum along a path : 6
Bounds property HexagonalGrid-PT-110-UpperBounds-00 :0 <= pb4_1_1 <= 6
FORMULA HexagonalGrid-PT-110-UpperBounds-00 6 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
HexagonalGrid-PT-110-UpperBounds-00,0,0.080246,5276,1,0,7,8491,9,1,256,8100,4
Min sum of variable value : 0
Maximum sum along a path : 6
Bounds property HexagonalGrid-PT-110-UpperBounds-01 :0 <= pb5_1_1 <= 6
FORMULA HexagonalGrid-PT-110-UpperBounds-01 6 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
HexagonalGrid-PT-110-UpperBounds-01,0,0.080813,5344,1,0,8,8491,10,1,308,8100,5
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-02 :0 <= pil3_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-02,0,0.081174,5344,1,0,9,8491,11,1,353,8100,6
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-03 :0 <= pi4_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-03,0,0.081435,5344,1,0,10,8491,12,1,392,8100,7
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-04 :0 <= po3_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-04,0,0.081628,5344,1,0,11,8491,13,1,411,8100,8
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-05 :0 <= pi3_1_1 <= 1
FORMULA HexagonalGrid-PT-110-UpperBounds-05 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
HexagonalGrid-PT-110-UpperBounds-05,0,0.081924,5344,1,0,12,8491,14,1,454,8100,9
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-06 :0 <= pil1_1_1 <= 1
FORMULA HexagonalGrid-PT-110-UpperBounds-06 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
HexagonalGrid-PT-110-UpperBounds-06,0,0.082581,5344,1,0,13,8491,15,1,517,8100,10
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-07 :0 <= pol2_1_1 <= 1
FORMULA HexagonalGrid-PT-110-UpperBounds-07 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
HexagonalGrid-PT-110-UpperBounds-07,0,0.082727,5344,1,0,14,8491,16,1,538,8100,11
Min sum of variable value : 0
Maximum sum along a path : 6
Bounds property HexagonalGrid-PT-110-UpperBounds-08 :0 <= pb2_1_1 <= 6
FORMULA HexagonalGrid-PT-110-UpperBounds-08 6 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
HexagonalGrid-PT-110-UpperBounds-08,0,0.08368,5344,1,0,15,8491,17,1,602,8100,12
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-09 :0 <= po4_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-09,0,0.083804,5344,1,0,16,8491,18,1,617,8100,13
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-10 :0 <= po5_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-10,0,0.083906,5344,1,0,17,8491,19,1,628,8100,14
Min sum of variable value : 0
Maximum sum along a path : 6
Bounds property HexagonalGrid-PT-110-UpperBounds-11 :0 <= pb4_1_1 <= 6
FORMULA HexagonalGrid-PT-110-UpperBounds-11 6 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
HexagonalGrid-PT-110-UpperBounds-11,0,0.083981,5344,1,0,17,8491,19,1,628,8100,14
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-12 :0 <= pol5_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-12,0,0.084074,5344,1,0,18,8491,20,1,637,8100,15
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-13 :0 <= pol1_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-13,0,0.08424,5344,1,0,19,8491,21,1,662,8100,16
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-14 :0 <= pil3_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-14,0,0.084313,5344,1,0,19,8491,21,1,662,8100,16
Min sum of variable value : 0
Maximum sum along a path : 1
Bounds property HexagonalGrid-PT-110-UpperBounds-15 :0 <= pol5_1_1 <= 1
FORMULA HexagonalGrid-PT-110-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
HexagonalGrid-PT-110-UpperBounds-15,0,0.08438,5344,1,0,19,8491,21,1,662,8100,16
BK_STOP 1552790369937
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /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 -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
Mar 17, 2019 2:39:29 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/, -smt]
Mar 17, 2019 2:39:29 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Mar 17, 2019 2:39:29 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 41 ms
Mar 17, 2019 2:39:29 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 31 places.
Mar 17, 2019 2:39:29 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 42 transitions.
Mar 17, 2019 2:39:29 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 14 ms
Mar 17, 2019 2:39:29 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 60 ms
Mar 17, 2019 2:39:29 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/UpperBounds.pnml.gal : 2 ms
Mar 17, 2019 2:39:29 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="HexagonalGrid-PT-110"
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
# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3954"
echo " Executing tool itstools"
echo " Input is HexagonalGrid-PT-110, 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 r085-csrt-155246554600542"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/HexagonalGrid-PT-110.tgz
mv HexagonalGrid-PT-110 execution
cd execution
if [ "UpperBounds" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "UpperBounds" = "UpperBounds" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh
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 '
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 ;