About the Execution of ITS-Tools.L for DiscoveryGPU-PT-11a
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
15755.530 | 3048.00 | 7763.00 | 64.70 | TFTFTTFTFFTTFTFT | 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 212K
-rw-r--r-- 1 mcc users 3.2K May 30 20:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K May 30 20:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.5K May 29 14:30 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 29 14:30 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 24 11:17 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K May 24 11:17 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.4K May 28 09:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 12K May 28 09:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.8K May 28 07:56 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.6K May 28 07:56 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 May 24 11:17 NewModel
-rw-r--r-- 1 mcc users 3.7K May 28 06:13 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 20K May 28 06:13 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 110 May 26 06:29 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 348 May 26 06:29 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.8K May 27 03:37 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K May 27 03:37 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K 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 39K May 24 11:17 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is DiscoveryGPU-PT-11a, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r285-csrt-152749175800093
=====================================================================
--------------------
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 DiscoveryGPU-PT-11a-CTLCardinality-00
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-01
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-02
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-03
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-04
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-05
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-06
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-07
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-08
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-09
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-10
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-11
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-12
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-13
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-14
FORMULA_NAME DiscoveryGPU-PT-11a-CTLCardinality-15
=== Now, execution of the tool begins
BK_START 1527986122626
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.201805241334/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_1.0.0.201805241334/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.
built 23 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
reachable,2.85312e+11,0.036536,5804,33,31,1924,485,258,1783,54,3012,0
Converting to forward existential form...Done !
original formula: EF(!(((u7.p62==0)||(u3.p28==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(((u7.p62==0)||(u3.p28==1))))] != FALSE
(forward)formula 0,1,0.037846,6184,1,0,1924,485,265,1783,59,3012,33
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-00 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AG(E((u10.p94>=3) U ((u1.p4==0)||(u10.p94==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E((u10.p94>=3) U ((u1.p4==0)||(u10.p94==1)))))] = FALSE
Reverse transition relation is NOT exact ! Due to transitions u1.t143, u1.t144, u2.t145, u2.t146, u3.t141, u3.t142, u4.t147, u4.t148, u5.t139, u5.t140, u6.t149, u6.t150, u7.t137, u7.t138, u8.t151, u8.t152, u9.t135, u9.t136, u10.t153, u10.t154, u11.t133, u11.t134, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :0/133/22/155
(forward)formula 1,0,0.057338,6184,1,0,2007,740,1137,2032,264,3012,5179
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF((((u2.p17==0)||(u7.p63==1))&&(u2.p14>=1)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (((u2.p17==0)||(u7.p63==1))&&(u2.p14>=1)))] != FALSE
(forward)formula 2,1,0.058412,6448,1,0,2024,751,1146,2061,266,3012,5240
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: EF(((u5.p49>=3)&&(u10.p95>=1)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * ((u5.p49>=3)&&(u10.p95>=1)))] != FALSE
(forward)formula 3,0,0.058589,6448,1,0,2024,751,1152,2061,267,3012,5245
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-03 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF((!((((u7.p69==0)||(u11.p101==1))||((u4.p35==0)||(u2.p19==1)))) + EF((u10.p92>=2))))
=> equivalent forward existential formula: ([(FwdU(Init,TRUE) * !((((u7.p69==0)||(u11.p101==1))||((u4.p35==0)||(u2.p19==1)))))] != FALSE + [(FwdU(FwdU(Init,TRUE),TRUE) * (u10.p92>=2))] != FALSE)
(forward)formula 4,1,0.059647,6448,1,0,2058,764,1165,2119,271,3012,5289
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-04 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: !(EG(EF((u9.p87>=3))))
=> equivalent forward existential formula: [FwdG(Init,E(TRUE U (u9.p87>=3)))] = FALSE
Using saturation style SCC detection
Using saturation style SCC detection
Fast SCC detection found an SCC at level 5
Fast SCC detection found an SCC at level 7
Fast SCC detection found an SCC at level 8
Fast SCC detection found an SCC at level 9
Fast SCC detection found an SCC at level 10
Fast SCC detection found an SCC at level 11
Fast SCC detection found an SCC at level 12
Fast SCC detection found an SCC at level 13
(forward)formula 5,1,0.069191,6448,1,0,2489,979,1289,2870,305,4964,5716
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-05 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AG((EG(((u2.p20==0)||(u8.p71==1))) + AX(((u11.p103==0)||(u7.p70==1)))))
=> equivalent forward existential formula: [(EY((FwdU(Init,TRUE) * !(EG(((u2.p20==0)||(u8.p71==1)))))) * !(((u11.p103==0)||(u7.p70==1))))] = FALSE
(forward)formula 6,0,0.166984,11200,1,0,12413,2359,1372,16159,308,14382,14023
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: AG(((u13.p112>=1)||((u9.p87==0)||(u9.p89==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(((u13.p112>=1)||((u9.p87==0)||(u9.p89==1)))))] = FALSE
(forward)formula 7,1,0.168212,11464,1,0,12417,2363,1378,16166,309,14405,14033
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-07 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: (AG(((u11.p103==0)||(u2.p15==1))) * A((((u10.p93==0)||(u10.p92==1))&&(u6.p57>=1)) U !((u8.p75>=1))))
=> equivalent forward existential formula: ([(FwdU(Init,TRUE) * !(((u11.p103==0)||(u2.p15==1))))] = FALSE * ([(FwdU(Init,!(!((u8.p75>=1)))) * (!((((u10.p93==0)||(u10.p92==1))&&(u6.p57>=1))) * !(!((u8.p75>=1)))))] = FALSE * [FwdG(Init,!(!((u8.p75>=1))))] = FALSE))
(forward)formula 8,0,0.170748,11464,1,0,12458,2363,1416,16245,312,14438,14103
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EX((AG(((u2.p15==0)||(u3.p28==1))) + !(((u11.p108==0)||(u9.p89==1)))))
=> equivalent forward existential formula: ([(EY(Init) * !(E(TRUE U !(((u2.p15==0)||(u3.p28==1))))))] != FALSE + [(EY(Init) * !(((u11.p108==0)||(u9.p89==1))))] != FALSE)
(forward)formula 9,0,0.173862,11728,1,0,12750,2400,1430,16552,313,14607,14630
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: (E(((u9.p83==0)||(u4.p36==1)) U !(((u8.p72==0)||(u4.p36==1)))) + EG((u8.p74>=1)))
=> equivalent forward existential formula: ([(FwdU(Init,((u9.p83==0)||(u4.p36==1))) * !(((u8.p72==0)||(u4.p36==1))))] != FALSE + [FwdG(Init,(u8.p74>=1))] != FALSE)
(forward)formula 10,1,0.207272,13048,1,0,16965,2686,1520,20672,323,18118,19753
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: (A(((u4.p38==0)||(u10.p91==1)) U ((u11.p107>=2)||((u3.p30==0)||(u4.p35==1)))) * E(((u6.p51>=2)||((u8.p74==0)||(u4.p32==1))) U (u5.p45>=1)))
=> equivalent forward existential formula: [(FwdU((Init * !((E(!(((u11.p107>=2)||((u3.p30==0)||(u4.p35==1)))) U (!(((u4.p38==0)||(u10.p91==1))) * !(((u11.p107>=2)||((u3.p30==0)||(u4.p35==1)))))) + EG(!(((u11.p107>=2)||((u3.p30==0)||(u4.p35==1)))))))),((u6.p51>=2)||((u8.p74==0)||(u4.p32==1)))) * (u5.p45>=1))] != FALSE
(forward)formula 11,1,0.282886,16216,1,0,25011,3014,1620,29146,325,21654,27615
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AF(AG(!((u8.p72>=1))))
=> equivalent forward existential formula: [FwdG(Init,!(!(E(TRUE U !(!((u8.p72>=1)))))))] = FALSE
(forward)formula 12,0,0.413044,22288,1,0,41003,3153,1625,39241,325,23437,38568
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-12 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: E(((((u6.p52==0)||(u5.p49==1))||(u4.p39>=3))||(((u2.p15==0)||(u6.p56==1))&&(u2.p19>=2))) U AX((u7.p65>=3)))
=> equivalent forward existential formula: [(FwdU(Init,((((u6.p52==0)||(u5.p49==1))||(u4.p39>=3))||(((u2.p15==0)||(u6.p56==1))&&(u2.p19>=2)))) * !(EX(!((u7.p65>=3)))))] != FALSE
(forward)formula 13,1,0.448238,24136,1,0,45481,3250,1688,42902,328,24249,44033
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: E(((u9.p88==0)||(u9.p88==1)) U AF((u2.p12>=3)))
=> equivalent forward existential formula: [(FwdU(Init,((u9.p88==0)||(u9.p88==1))) * !(EG(!((u2.p12>=3)))))] != FALSE
(forward)formula 14,0,0.486905,25720,1,0,49632,3367,1693,47441,330,25146,48811
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF((((!((u11.p105==0)||(u4.p37==1)))&&((u4.p35==0)||(u11.p102==1)))&&((u4.p32==0)||(u11.p107==1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * (((!((u11.p105==0)||(u4.p37==1)))&&((u4.p35==0)||(u11.p102==1)))&&((u4.p32==0)||(u11.p107==1))))] != FALSE
(forward)formula 15,1,0.488638,25984,1,0,49691,3378,1707,47479,331,25152,48869
FORMULA DiscoveryGPU-PT-11a-CTLCardinality-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
BK_STOP 1527986125674
--------------------
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/ -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 CTLCardinality -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 12:35:24 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/, -louvain, -smt]
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 51 ms
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 113 places.
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 155 transitions.
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
Jun 03, 2018 12:35:24 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 12 ms
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 71 ms
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 24 ms
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 21 ms
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
Jun 03, 2018 12:35:24 AM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 97 redundant transitions.
Jun 03, 2018 12:35:24 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLCardinality.pnml.gal : 8 ms
Jun 03, 2018 12:35:24 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLCardinality.ctl : 2 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="DiscoveryGPU-PT-11a"
export BK_EXAMINATION="CTLCardinality"
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/DiscoveryGPU-PT-11a.tgz
mv DiscoveryGPU-PT-11a 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 DiscoveryGPU-PT-11a, 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 r285-csrt-152749175800093"
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 ;