About the Execution of ITS-Tools.M for AutoFlight-PT-04a
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
786.270 | 24566.00 | 28667.00 | 140.30 | FTTFFFFFFFFFFFTT | 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.r189-csrt-155225079900121.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 itstoolsm
Input is AutoFlight-PT-04a, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r189-csrt-155225079900121
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 192K
-rw-r--r-- 1 mcc users 3.6K Feb 9 06:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Feb 9 06:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 5 03:40 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 5 03:40 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 10 17:31 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.2K Mar 10 17:31 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 104 Feb 24 15:05 GlobalProperties.txt
-rw-r--r-- 1 mcc users 342 Feb 24 15:05 GlobalProperties.xml
-rw-r--r-- 1 mcc users 2.4K Feb 4 22:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K Feb 4 22:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.8K Feb 4 22:32 LTLFireability.txt
-rw-r--r-- 1 mcc users 7.7K Feb 4 22:32 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.1K Feb 2 00:17 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 15K Feb 2 00:17 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Jan 29 11:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 16K Jan 29 11:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 4 22:18 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 4 22:18 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 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 booleans
BOOL_VECTOR
here is the order used to build the result vector(from text file)
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-00
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-01
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-02
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-03
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-04
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-05
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-06
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-07
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-08
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-09
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-10
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-11
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-12
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-13
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-14
FORMULA_NAME AutoFlight-PT-04a-CTLCardinality-15
=== Now, execution of the tool begins
BK_START 1553584951693
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit//greatspn//bin/pinvar, /home/mcc/execution/gspn], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit//greatspn//bin/RGMEDD2, /home/mcc/execution/gspn, -META, -varord-only], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903251645/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /home/mcc/execution/CTLCardinality.pnml.gal, -t, CGAL, -ctl, /home/mcc/execution/CTLCardinality.ctl, --load-order, /home/mcc/execution/model.ord], workingDir=/home/mcc/execution]
its-ctl command run as :
/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201903251645/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /home/mcc/execution/CTLCardinality.pnml.gal -t CGAL -ctl /home/mcc/execution/CTLCardinality.ctl --load-order /home/mcc/execution/model.ord
Successfully loaded order from file /home/mcc/execution/model.ord
No direction supplied, using forward translation only.
Parsed 16 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,3.33202e+06,0.459936,18388,2,1760,5,39209,6,0,499,67667,0
Converting to forward existential form...Done !
original formula: A(((((p56==0)||(p93==1))&&((p41==0)||(p25==1)))||(((p0==0)||(p10==1))||((p10==0)||(p12==1)))) U AX(((p7==0)||(p25==1))))
=> equivalent forward existential formula: [((Init * !(EG(!(!(EX(!(((p7==0)||(p25==1))))))))) * !(E(!(!(EX(!(((p7==0)||(p25==1)))))) U (!(((((p56==0)||(p93==1))&&((p41==0)||(p25==1)))||(((p0==0)||(p10==1))||((p10==0)||(p12==1))))) * !(!(EX(!(((p7==0)||(p25==1))))))))))] != FALSE
Reverse transition relation is NOT exact ! Due to transitions t0, t1, t2, t3, t4, t5, t6, t7, t17, t20, t23, t26, t29, t32, t35, t38, t95, t96, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :20/75/10/105
Using saturation style SCC detection
(forward)formula 0,0,8.28672,209804,1,0,265,1.06278e+06,197,154,3130,951580,297
FORMULA AutoFlight-PT-04a-CTLCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EG(!((((p78>=3)&&(p93>=2))||(p18>=2))))
=> equivalent forward existential formula: [FwdG(Init,!((((p78>=3)&&(p93>=2))||(p18>=2))))] != FALSE
(forward)formula 1,1,8.64984,221420,1,0,265,1.09318e+06,201,157,3250,1.01455e+06,301
FORMULA AutoFlight-PT-04a-CTLCardinality-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AF(AG(((p41==0)||(p28==1))))
=> equivalent forward existential formula: [FwdG(Init,!(!(E(TRUE U !(((p41==0)||(p28==1)))))))] = FALSE
(forward)formula 2,1,8.65196,221684,1,0,265,1.09318e+06,209,157,3255,1.01455e+06,302
FORMULA AutoFlight-PT-04a-CTLCardinality-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: (!(A(((p82==0)||(p13==1)) U ((p59==0)||(p88==1)))) + AG(((p76==0)||(p10==1))))
=> equivalent forward existential formula: [(FwdU((Init * !(!(!((E(!(((p59==0)||(p88==1))) U (!(((p82==0)||(p13==1))) * !(((p59==0)||(p88==1))))) + EG(!(((p59==0)||(p88==1))))))))),TRUE) * !(((p76==0)||(p10==1))))] = FALSE
(forward)formula 3,0,8.79808,226172,1,0,347,1.12117e+06,221,196,3274,1.04686e+06,420
FORMULA AutoFlight-PT-04a-CTLCardinality-03 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: (E(!(((p8==0)||(p101==1))) U (((p98==0)||(p64==1))||(p53>=2))) * ((EX((p34>=1)) * AG(((p106==0)||(p18==1)))) + AF(((p68>=2)&&((p13==0)||(p77==1))))))
=> equivalent forward existential formula: ([(Init * !(E(!(((p8==0)||(p101==1))) U (((p98==0)||(p64==1))||(p53>=2)))))] = FALSE * [FwdG((Init * !((EX((p34>=1)) * !(E(TRUE U !(((p106==0)||(p18==1)))))))),!(((p68>=2)&&((p13==0)||(p77==1)))))] = FALSE)
(forward)formula 4,0,9.70584,247292,1,0,380,1.22148e+06,228,215,3395,1.16592e+06,462
FORMULA AutoFlight-PT-04a-CTLCardinality-04 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF((p40>=2))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (p40>=2))] != FALSE
(forward)formula 5,0,9.70691,247292,1,0,380,1.22148e+06,229,215,3396,1.16592e+06,462
FORMULA AutoFlight-PT-04a-CTLCardinality-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: AF(((((p87==0)||(p8==1))&&(p74>=2))&&(((p68==0)||(p70==1))&&(p50>=3))))
=> equivalent forward existential formula: [FwdG(Init,!(((((p87==0)||(p8==1))&&(p74>=2))&&(((p68==0)||(p70==1))&&(p50>=3)))))] = FALSE
(forward)formula 6,0,9.71155,247556,1,0,380,1.22149e+06,231,215,3416,1.16594e+06,463
FORMULA AutoFlight-PT-04a-CTLCardinality-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: E(((p74==0)||(p62==1)) U (p42>=3))
=> equivalent forward existential formula: [(FwdU(Init,((p74==0)||(p62==1))) * (p42>=3))] != FALSE
(forward)formula 7,0,9.71243,247820,1,0,380,1.22149e+06,232,215,3417,1.16594e+06,463
FORMULA AutoFlight-PT-04a-CTLCardinality-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EG(EF(((p9>=1)&&(p19>=2))))
=> equivalent forward existential formula: [FwdG(Init,E(TRUE U ((p9>=1)&&(p19>=2))))] != FALSE
(forward)formula 8,0,9.71373,247820,1,0,380,1.22149e+06,233,215,3419,1.16594e+06,464
FORMULA AutoFlight-PT-04a-CTLCardinality-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF(!((((p105==0)||(p46==1))||((p60==0)||(p77==1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !((((p105==0)||(p46==1))||((p60==0)||(p77==1)))))] != FALSE
(forward)formula 9,0,9.71786,247820,1,0,380,1.2219e+06,235,215,3429,1.16594e+06,464
FORMULA AutoFlight-PT-04a-CTLCardinality-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: (EF(((p46==0)||(p40==1))) * AF((p73>=2)))
=> equivalent forward existential formula: ([(Init * !(E(TRUE U ((p46==0)||(p40==1)))))] = FALSE * [FwdG(Init,!((p73>=2)))] = FALSE)
(forward)formula 10,0,9.71918,248084,1,0,380,1.2219e+06,237,215,3431,1.16596e+06,465
FORMULA AutoFlight-PT-04a-CTLCardinality-10 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EG(A(((p52==0)||(p73==1)) U ((p28==0)||(p85==1))))
=> equivalent forward existential formula: [FwdG(Init,!((E(!(((p28==0)||(p85==1))) U (!(((p52==0)||(p73==1))) * !(((p28==0)||(p85==1))))) + EG(!(((p28==0)||(p85==1)))))))] != FALSE
(forward)formula 11,0,17.015,410292,1,0,993,2.09769e+06,250,540,3446,2.25126e+06,1173
FORMULA AutoFlight-PT-04a-CTLCardinality-11 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: AG((EG(((p19==0)||(p0==1))) + ((p51==0)||(p61==1))))
=> equivalent forward existential formula: [((FwdU(Init,TRUE) * !(((p51==0)||(p61==1)))) * !(EG(((p19==0)||(p0==1)))))] = FALSE
(forward)formula 12,0,18.981,457548,1,0,1334,2.36113e+06,257,731,3455,2.591e+06,1601
FORMULA AutoFlight-PT-04a-CTLCardinality-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF(AG((p55>=1)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U !((p55>=1)))))] != FALSE
(forward)formula 13,0,19.0257,458868,1,0,1336,2.36556e+06,259,732,3456,2.5949e+06,1609
FORMULA AutoFlight-PT-04a-CTLCardinality-13 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: ((EG(((p63==0)||(p56==1))) * EF(((p62==0)||(p8==1)))) + AX(((((p39==0)||(p12==1))||(p86>=3))||((p51>=1)&&((p65==0)||(p106==1))))))
=> equivalent forward existential formula: [(EY((Init * !((EG(((p63==0)||(p56==1))) * E(TRUE U ((p62==0)||(p8==1))))))) * !(((((p39==0)||(p12==1))||(p86>=3))||((p51>=1)&&((p65==0)||(p106==1))))))] = FALSE
(forward)formula 14,1,21.3489,504012,1,0,1804,2.59726e+06,267,953,3480,2.89518e+06,2151
FORMULA AutoFlight-PT-04a-CTLCardinality-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AG((!(((p34>=2)&&(p44>=2))) + EF(((p73==0)||(p80==1)))))
=> equivalent forward existential formula: [((FwdU(Init,TRUE) * !(!(((p34>=2)&&(p44>=2))))) * !(E(TRUE U ((p73==0)||(p80==1)))))] = FALSE
(forward)formula 15,1,21.3521,504276,1,0,1805,2.59739e+06,268,953,3483,2.89526e+06,2154
FORMULA AutoFlight-PT-04a-CTLCardinality-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
BK_STOP 1553584976259
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/
+ BINDIR=/home/mcc/BenchKit/
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ CTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit//runeclipse.sh /home/mcc/execution CTLCardinality -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -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 CTLCardinality -z3path /home/mcc/BenchKit//z3/bin/z3 -yices2path /home/mcc/BenchKit//yices/bin/yices -its -ltsminpath /home/mcc/BenchKit//lts_install_dir/ -greatspnpath /home/mcc/BenchKit//greatspn/ -order META -manyOrder -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 26, 2019 7:22:33 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/, -greatspnpath, /home/mcc/BenchKit//greatspn/, -order, META, -manyOrder, -smt]
Mar 26, 2019 7:22:33 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Mar 26, 2019 7:22:33 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 50 ms
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 107 places.
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 105 transitions.
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
Mar 26, 2019 7:22:34 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 21 ms
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 63 ms
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.semantics.DeterministicNextBuilder getDeterministicNext
INFO: Input system was already deterministic with 105 transitions.
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.application.StructuralToGreatSPN handlePage
INFO: Transformed 107 places.
Mar 26, 2019 7:22:34 AM fr.lip6.move.gal.application.StructuralToGreatSPN handlePage
INFO: Transformed 105 transitions.
Mar 26, 2019 7:22:34 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLCardinality.pnml.gal : 2 ms
Mar 26, 2019 7:22:34 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLCardinality.ctl : 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="AutoFlight-PT-04a"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="itstoolsm"
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 itstoolsm"
echo " Input is AutoFlight-PT-04a, 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 r189-csrt-155225079900121"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-04a.tgz
mv AutoFlight-PT-04a execution
cd execution
if [ "CTLCardinality" = "GlobalProperties" ] ; then
rm -f GenericPropertiesVerdict.xml
fi
if [ "CTLCardinality" = "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 [ "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 ;