About the Execution of ITS-Tools.L for DNAwalker-PT-10ringRL
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
15753.000 | 34954.00 | 39537.00 | 430.40 | FFTTFFFFTFTTTTFT | 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 280K
-rw-r--r-- 1 mcc users 3.5K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 20K 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 5.6K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.2K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 8.7K May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 11K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 112 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 350 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.2K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K 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 9 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 112K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is DNAwalker-PT-10ringRL, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r069-smll-152649742100290
=====================================================================
--------------------
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 DNAwalker-PT-10ringRL-CTLCardinality-00
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-01
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-02
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-03
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-04
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-05
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-06
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-07
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-08
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-09
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-10
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-11
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-12
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-13
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-14
FORMULA_NAME DNAwalker-PT-10ringRL-CTLCardinality-15
=== Now, execution of the tool begins
BK_START 1527371456751
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.
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,2.79507e+07,0.906601,21508,2,2482,5,73243,6,0,395,80955,0
Converting to forward existential form...Done !
original formula: AF(AG(((A17>=3)&&(A14<=A10))))
=> equivalent forward existential formula: [FwdG(Init,!(!(E(TRUE U !(((A17>=3)&&(A14<=A10)))))))] = FALSE
Reverse transition relation is NOT exact ! Due to transitions tb4, tAb4, tb5, tAb5, tb12, tAb12, tb13, tAb13, tb14, tAb14, tb15, tAb15, t1_2, t1_3, t1_4, t1_5, t1_6, t1_7, t1_8, t1_9, t1_10, t1_11, t1_12, t1_13, t1_14, t1_15, t1_16, t1_17, t1_18, t1_19, t1_20, t1_21, t2_3, t2_4, t2_5, t2_6, t2_7, t2_8, t2_9, t2_10, t2_11, t2_12, t2_13, t2_14, t2_15, t2_16, t2_17, t2_18, t2_19, t2_20, t2_21, t3_2, t3_4, t3_5, t3_6, t3_7, t3_8, t3_13, t3_17, t3_18, t3_19, t3_20, t3_21, t4_2, t4_3, t4_5, t4_6, t4_7, t4_8, t4_13, t4_18, t4_19, t4_20, t4_21, t5_2, t5_3, t5_4, t5_6, t5_7, t5_8, t5_9, t5_13, t5_20, t5_21, t6_2, t6_3, t6_4, t6_5, t6_7, t6_8, t6_9, t6_10, t6_13, t6_21, t8_2, t8_3, t8_4, t8_5, t8_6, t8_7, t8_9, t8_10, t8_11, t8_12, t8_13, t8_14, t9_2, t9_5, t9_6, t9_7, t9_8, t9_10, t9_11, t9_12, t9_13, t9_14, t10_2, t10_6, t10_7, t10_8, t10_9, t10_11, t10_12, t10_13, t10_14, t10_15, t11_2, t11_7, t11_8, t11_9, t11_10, t11_12, t11_13, t11_14, t11_15, t11_16, t12_2, t12_7, t12_8, t12_9, t12_10, t12_11, t12_13, t12_14, t12_15, t12_16, t12_17, t12_18, t13_2, t13_3, t13_4, t13_5, t13_6, t13_7, t13_8, t13_9, t13_10, t13_11, t13_12, t13_14, t13_15, t13_16, t13_17, t13_18, t13_19, t13_20, t13_21, t14_2, t14_8, t14_9, t14_10, t14_11, t14_12, t14_13, t14_15, t14_16, t14_17, t14_18, t15_2, t15_10, t15_11, t15_12, t15_13, t15_14, t15_16, t15_17, t15_18, t15_19, t16_2, t16_11, t16_12, t16_13, t16_14, t16_15, t16_17, t16_18, t16_19, t16_20, t18_2, t18_3, t18_4, t18_12, t18_13, t18_14, t18_15, t18_16, t18_17, t18_19, t18_20, t18_21, t19_2, t19_3, t19_4, t19_13, t19_15, t19_16, t19_17, t19_18, t19_20, t19_21, t20_2, t20_3, t20_4, t20_5, t20_13, t20_16, t20_17, t20_18, t20_19, t20_21, t21_2, t21_3, t21_4, t21_5, t21_6, t21_13, t21_17, t21_18, t21_19, t21_20, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :18/2/240/260
(forward)formula 0,0,6.98828,144500,1,0,756,717051,524,247,2714,829695,539
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: (AX(((B12<=A10)||(!(A4<=A12)))) * EF(((B13<=A19)&&((A8>=2)&&(A3>=3)))))
=> equivalent forward existential formula: ([(EY(Init) * !(((B12<=A10)||(!(A4<=A12)))))] = FALSE * [(Init * !(E(TRUE U ((B13<=A19)&&((A8>=2)&&(A3>=3))))))] = FALSE)
(forward)formula 1,0,6.9913,144764,1,0,756,717051,525,247,2718,829695,540
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-01 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EG((A16>=1))
=> equivalent forward existential formula: [FwdG(Init,(A16>=1))] != FALSE
Hit Full ! (commute/partial/dont) 239/0/21
(forward)formula 2,1,7.38237,147404,1,0,758,733873,532,248,2740,839348,544
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-02 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: EG((A16<=B15))
=> equivalent forward existential formula: [FwdG(Init,(A16<=B15))] != FALSE
Hit Full ! (commute/partial/dont) 237/0/23
(forward)formula 3,1,7.42595,147668,1,0,761,736174,539,249,2757,845192,548
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AF(EG(!((A9>=1))))
=> equivalent forward existential formula: [FwdG(Init,!(EG(!((A9>=1)))))] = FALSE
(forward)formula 4,0,14.3628,298696,1,0,821,1.44576e+06,548,291,2758,1.77346e+06,596
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-04 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: AG((EX((A14>=3)) + ((A12<=B13)||(!(A1<=A10)))))
=> equivalent forward existential formula: [((FwdU(Init,TRUE) * !(((A12<=B13)||(!(A1<=A10))))) * !(EX((A14>=3))))] = FALSE
(forward)formula 5,0,14.3776,298960,1,0,823,1.44739e+06,551,293,2773,1.77755e+06,598
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: (((AX((A4<=A2)) * EG((A1>=2))) * !(AG((B15>=2)))) + (B15<=A15))
=> equivalent forward existential formula: (([(EY((Init * !((B15<=A15)))) * !((A4<=A2)))] = FALSE * [((Init * !((B15<=A15))) * !(EG((A1>=2))))] = FALSE) * [((Init * !((B15<=A15))) * !(E(TRUE U !((B15>=2)))))] = FALSE)
(forward)formula 6,0,14.3997,299752,1,0,835,1.45225e+06,560,299,2778,1.77882e+06,643
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-06 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EF(((A10>=2)&&(A11>=2)))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * ((A10>=2)&&(A11>=2)))] != FALSE
(forward)formula 7,0,14.4025,300016,1,0,835,1.45225e+06,561,299,2779,1.77882e+06,643
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: !(((((A6<=B13)||(A10>=1))||(!(A4<=A10))) * AF((A9>=2))))
=> equivalent forward existential formula: ([(Init * !((((A6<=B13)||(A10>=1))||(!(A4<=A10)))))] != FALSE + [FwdG(Init,!((A9>=2)))] != FALSE)
Hit Full ! (commute/partial/dont) 239/0/21
(forward)formula 8,1,15.9746,331168,1,0,838,1.53705e+06,571,300,2853,1.98821e+06,648
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: AX((!(((A10>=3)||(A21<=A18))) + EF((A13>=1))))
=> equivalent forward existential formula: [((EY(Init) * !(!(((A10>=3)||(A21<=A18))))) * !(E(TRUE U (A13>=1))))] = FALSE
(forward)formula 9,0,16.2578,337768,1,0,847,1.59048e+06,573,307,2861,2.02374e+06,660
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-09 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: EG((!(((A4>=1)&&(B13<=A15))) * EX((A7<=A19))))
=> equivalent forward existential formula: [FwdG(Init,(!(((A4>=1)&&(B13<=A15))) * EX((A7<=A19))))] != FALSE
(forward)formula 10,1,23.54,506604,1,0,907,2.36118e+06,579,348,2878,3.06753e+06,705
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-10 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: EF(!(EF((A9<=B13))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U (A9<=B13))))] != FALSE
(forward)formula 11,1,26.8666,556764,1,0,931,2.68227e+06,580,366,2883,3.36937e+06,746
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-11 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: (!(EX(((A15>=2)&&(B12<=B15)))) * EG(((A14>=1)||(A6<=A20))))
=> equivalent forward existential formula: ([(EY(Init) * ((A15>=2)&&(B12<=B15)))] = FALSE * [(Init * !(EG(((A14>=1)||(A6<=A20)))))] = FALSE)
(forward)formula 12,1,28.4509,583428,1,0,961,2.81776e+06,586,382,2893,3.50814e+06,790
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: !((((!((B13<=B5)&&(A11<=A12)))||((!(B14<=A18))||((A18>=1)||(A15>=3)))) * (AF((A13>=1)) + AF((A11>=3)))))
=> equivalent forward existential formula: ([(Init * !(((!((B13<=B5)&&(A11<=A12)))||((!(B14<=A18))||((A18>=1)||(A15>=3))))))] != FALSE + [FwdG((Init * !(!(EG(!((A13>=1)))))),!((A11>=3)))] != FALSE)
(forward)formula 13,1,28.568,586332,1,0,967,2.83934e+06,595,385,2919,3.52566e+06,800
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
original formula: ((!((B14<=A18)) + EF(((A11>=3)||(A15>=3)))) + (EX(((A12<=A3)&&(A11>=3))) * (A12>=1)))
=> equivalent forward existential formula: (([(Init * !((B14<=A18)))] != FALSE + [(FwdU(Init,TRUE) * ((A11>=3)||(A15>=3)))] != FALSE) + [(EY((Init * (A12>=1))) * ((A12<=A3)&&(A11>=3)))] != FALSE)
(forward)formula 14,0,28.5727,586596,1,0,968,2.83938e+06,599,385,2931,3.52577e+06,801
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !
***************************************
original formula: (EF((A3<=A14)) * EX(AG((B14<=A2))))
=> equivalent forward existential formula: [(EY((Init * E(TRUE U (A3<=A14)))) * !(E(TRUE U !((B14<=A2)))))] != FALSE
(forward)formula 15,1,29.9767,621708,1,0,1004,3.06939e+06,602,412,2942,3.73289e+06,863
FORMULA DNAwalker-PT-10ringRL-CTLCardinality-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is TRUE !
***************************************
BK_STOP 1527371491705
--------------------
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
May 26, 2018 9:50:59 PM 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]
May 26, 2018 9:50:59 PM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
May 26, 2018 9:50:59 PM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 127 ms
May 26, 2018 9:50:59 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 27 places.
May 26, 2018 9:51:00 PM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 260 transitions.
May 26, 2018 9:51:00 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 26 ms
May 26, 2018 9:51:00 PM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 166 ms
May 26, 2018 9:51:00 PM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLCardinality.pnml.gal : 9 ms
May 26, 2018 9:51:00 PM 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="DNAwalker-PT-10ringRL"
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/DNAwalker-PT-10ringRL.tgz
mv DNAwalker-PT-10ringRL 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 DNAwalker-PT-10ringRL, 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 r069-smll-152649742100290"
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 ;