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 824K
-rw-r--r-- 1 mcc users 4.0K 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 3.0K 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 18:49 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K May 15 18:49 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.5K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 10K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 118 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 356 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 2.6K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 13K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:49 equiv_col
-rw-r--r-- 1 mcc users 4 May 15 18:49 instance
-rw-r--r-- 1 mcc users 6 May 15 18:49 iscolored
-rw-r--r-- 1 mcc users 660K May 15 18:49 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool itstoolsl
Input is CloudReconfiguration-PT-301, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r057-smll-152646384500004
=====================================================================

--------------------
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 CloudReconfiguration-PT-301-CTLFireability-00
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-01
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-02
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-03
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-04
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-05
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-06
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-07
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-08
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-09
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-10
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-11
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-12
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-13
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-14
FORMULA_NAME CloudReconfiguration-PT-301-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1527227078096

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/CTLFireability.pnml.gal, -t, CGAL, -ctl, /home/mcc/execution/CTLFireability.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/CTLFireability.pnml.gal -t CGAL -ctl /home/mcc/execution/CTLFireability.ctl
No direction supplied, using forward translation only.
Parsed 16 CTL formulae.
built 3 ordering constraints for composite.
built 137 ordering constraints for composite.
built 136 ordering constraints for composite.
built 91 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,1.31973e+11,5.59002,95820,226,14971,4244,191095,538,8216,4150,1.0074e+06,0


Converting to forward existential form...Done !
original formula: AF((((i0.i1.i0.u5.p988>=1)&&(((i0.i1.i0.u6.p1539>=1)&&(i0.i1.u7.p2015>=1))&&(i0.i1.i0.u5.p1151>=1)))&&(i0.i1.i0.u5.p1172>=1)))
=> equivalent forward existential formula: [FwdG(Init,!((((i0.i1.i0.u5.p988>=1)&&(((i0.i1.i0.u6.p1539>=1)&&(i0.i1.u7.p2015>=1))&&(i0.i1.i0.u5.p1151>=1)))&&(i0.i1.i0.u5.p1172>=1))))] = FALSE
Using saturation style SCC detection
Fast SCC detection found an SCC at level 1
Fast SCC detection found an SCC at level 2
(forward)formula 0,0,16.1814,281852,1,0,11508,943471,2075,24271,19719,2.94024e+06,10618
FORMULA CloudReconfiguration-PT-301-CTLFireability-00 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL USE_NUPN
Formula is FALSE !

***************************************

original formula: A(!(AX((i0.i1.i0.u6.p1324>=1))) U ((!((i0.i1.i0.u6.p1348>=1)&&(i0.i1.u7.p2345>=1)))&&(((i0.i1.u7.p1944>=1)&&(i0.i1.i0.u6.p1674>=1))&&(!(i0.u2.p340>=1)))))
=> equivalent forward existential formula: [((Init * !(EG(!(((!((i0.i1.i0.u6.p1348>=1)&&(i0.i1.u7.p2345>=1)))&&(((i0.i1.u7.p1944>=1)&&(i0.i1.i0.u6.p1674>=1))&&(!(i0.u2.p340>=1)))))))) * !(E(!(((!((i0.i1.i0.u6.p1348>=1)&&(i0.i1.u7.p2345>=1)))&&(((i0.i1.u7.p1944>=1)&&(i0.i1.i0.u6.p1674>=1))&&(!(i0.u2.p340>=1))))) U (!(!(!(EX(!((i0.i1.i0.u6.p1324>=1)))))) * !(((!((i0.i1.i0.u6.p1348>=1)&&(i0.i1.u7.p2345>=1)))&&(((i0.i1.u7.p1944>=1)&&(i0.i1.i0.u6.p1674>=1))&&(!(i0.u2.p340>=1)))))))))] != FALSE
Reverse transition relation is NOT exact ! Due to transitions t2868, i0.u2.t3, i0.u2.t4, i0.u2.t5, i0.u2.t2181, i0.u2.t2197, i0.u2.t2202, i0.u2.t2207, i0.u2.t2238, i0.u2.t2367, i0.u2.t2395, i0.u2.t2401, i0.u2.t2406, i0.u2.t2408, i0.u2.t2417, i0.u2.t2422, i0.u2.t2427, i0.u2.t2458, i0.u2.t2587, i0.u2.t2615, i0.u2.t2621, i0.u2.t2626, i0.u2.t2628, i0.u2.t2637, i0.u2.t2642, i0.u2.t2647, i0.u2.t2678, i0.u2.t2807, i0.u2.t2835, i0.u2.t2841, i0.u2.t2846, i0.u2.t2848, i0.u2.t2854, i0.u2.t2860, i0.u2.t2866, i0.i1.u7.t29, i0.i1.u7.t32, i0.i1.u7.t36, i0.i1.u7.t58, i0.i1.u7.t59, i0.i1.u7.t62, i0.i1.u7.t69, i0.i1.u7.t80, i0.i1.u7.t84, i0.i1.u7.t89, i0.i1.u7.t96, i0.i1.u7.t98, i0.i1.u7.t113, i0.i1.u7.t116, i0.i1.u7.t123, i0.i1.u7.t134, i0.i1.u7.t138, i0.i1.u7.t143, i0.i1.u7.t150, i0.i1.u7.t152, i0.i1.u7.t154, i0.i1.u7.t165, i0.i1.u7.t167, i0.i1.u7.t169, i0.i1.u7.t171, i0.i1.u7.t173, i0.i1.u7.t175, i0.i1.u7.t187, i0.i1.u7.t189, i0.i1.u7.t191, i0.i1.u7.t214, i0.i1.u7.t216, i0.i1.u7.t228, i0.i1.u7.t232, i0.i1.u7.t236, i0.i1.u7.t238, i0.i1.u7.t240, i0.i1.u7.t245, i0.i1.u7.t252, i0.i1.u7.t254, i0.i1.u7.t259, i0.i1.u7.t266, i0.i1.u7.t268, i0.i1.u7.t270, i0.i1.u7.t276, i0.i1.u7.t283, i0.i1.u7.t285, i0.i1.u7.t287, i0.i1.u7.t289, i0.i1.u7.t291, i0.i1.u7.t297, i0.i1.u7.t298, i0.i1.u7.t300, i0.i1.u7.t302, i0.i1.u7.t322, i0.i1.u7.t323, i0.i1.u7.t329, i0.i1.u7.t353, i0.i1.u7.t364, i0.i1.u7.t394, i0.i1.u7.t403, i0.i1.u7.t435, i0.i1.u7.t452, i0.i1.u7.t454, i0.i1.u7.t461, i0.i1.u7.t480, i0.i1.u7.t481, i0.i1.u7.t487, i0.i1.u7.t511, i0.i1.u7.t522, i0.i1.u7.t548, i0.i1.u7.t557, i0.i1.u7.t589, i0.i1.u7.t604, i0.i1.u7.t606, i0.i1.u7.t617, i0.i1.u7.t625, i0.i1.u7.t671, i0.i1.u7.t686, i0.i1.u7.t696, i0.i1.u7.t717, i0.i1.u7.t733, i0.i1.u7.t741, i0.i1.i0.u5.t1464, i0.i1.i0.u5.t1467, i0.i1.i0.u5.t1471, i0.i1.i0.u5.t1493, i0.i1.i0.u5.t1494, i0.i1.i0.u5.t1497, i0.i1.i0.u5.t1504, i0.i1.i0.u5.t1515, i0.i1.i0.u5.t1519, i0.i1.i0.u5.t1524, i0.i1.i0.u5.t1531, i0.i1.i0.u5.t1533, i0.i1.i0.u5.t1548, i0.i1.i0.u5.t1551, i0.i1.i0.u5.t1558, i0.i1.i0.u5.t1569, i0.i1.i0.u5.t1573, i0.i1.i0.u5.t1578, i0.i1.i0.u5.t1585, i0.i1.i0.u5.t1587, i0.i1.i0.u5.t1589, i0.i1.i0.u5.t1600, i0.i1.i0.u5.t1602, i0.i1.i0.u5.t1604, i0.i1.i0.u5.t1606, i0.i1.i0.u5.t1608, i0.i1.i0.u5.t1610, i0.i1.i0.u5.t1622, i0.i1.i0.u5.t1624, i0.i1.i0.u5.t1626, i0.i1.i0.u5.t1649, i0.i1.i0.u5.t1651, i0.i1.i0.u5.t1663, i0.i1.i0.u5.t1667, i0.i1.i0.u5.t1671, i0.i1.i0.u5.t1673, i0.i1.i0.u5.t1675, i0.i1.i0.u5.t1680, i0.i1.i0.u5.t1687, i0.i1.i0.u5.t1689, i0.i1.i0.u5.t1694, i0.i1.i0.u5.t1701, i0.i1.i0.u5.t1703, i0.i1.i0.u5.t1705, i0.i1.i0.u5.t1711, i0.i1.i0.u5.t1718, i0.i1.i0.u5.t1720, i0.i1.i0.u5.t1722, i0.i1.i0.u5.t1724, i0.i1.i0.u5.t1726, i0.i1.i0.u5.t1732, i0.i1.i0.u5.t1733, i0.i1.i0.u5.t1735, i0.i1.i0.u5.t1737, i0.i1.i0.u5.t1757, i0.i1.i0.u5.t1758, i0.i1.i0.u5.t1764, i0.i1.i0.u5.t1788, i0.i1.i0.u5.t1799, i0.i1.i0.u5.t1829, i0.i1.i0.u5.t1838, i0.i1.i0.u5.t1870, i0.i1.i0.u5.t1887, i0.i1.i0.u5.t1889, i0.i1.i0.u5.t1896, i0.i1.i0.u5.t1915, i0.i1.i0.u5.t1916, i0.i1.i0.u5.t1922, i0.i1.i0.u5.t1946, i0.i1.i0.u5.t1957, i0.i1.i0.u5.t1983, i0.i1.i0.u5.t1992, i0.i1.i0.u5.t2024, i0.i1.i0.u5.t2039, i0.i1.i0.u5.t2041, i0.i1.i0.u5.t2052, i0.i1.i0.u5.t2060, i0.i1.i0.u5.t2106, i0.i1.i0.u5.t2121, i0.i1.i0.u5.t2131, i0.i1.i0.u5.t2152, i0.i1.i0.u5.t2168, i0.i1.i0.u5.t2176, i0.i1.i0.u6.t747, i0.i1.i0.u6.t750, i0.i1.i0.u6.t754, i0.i1.i0.u6.t776, i0.i1.i0.u6.t777, i0.i1.i0.u6.t780, i0.i1.i0.u6.t787, i0.i1.i0.u6.t798, i0.i1.i0.u6.t802, i0.i1.i0.u6.t807, i0.i1.i0.u6.t814, i0.i1.i0.u6.t816, i0.i1.i0.u6.t831, i0.i1.i0.u6.t834, i0.i1.i0.u6.t841, i0.i1.i0.u6.t852, i0.i1.i0.u6.t856, i0.i1.i0.u6.t861, i0.i1.i0.u6.t868, i0.i1.i0.u6.t870, i0.i1.i0.u6.t872, i0.i1.i0.u6.t883, i0.i1.i0.u6.t885, i0.i1.i0.u6.t887, i0.i1.i0.u6.t889, i0.i1.i0.u6.t891, i0.i1.i0.u6.t893, i0.i1.i0.u6.t905, i0.i1.i0.u6.t907, i0.i1.i0.u6.t909, i0.i1.i0.u6.t932, i0.i1.i0.u6.t934, i0.i1.i0.u6.t946, i0.i1.i0.u6.t950, i0.i1.i0.u6.t954, i0.i1.i0.u6.t956, i0.i1.i0.u6.t958, i0.i1.i0.u6.t963, i0.i1.i0.u6.t970, i0.i1.i0.u6.t972, i0.i1.i0.u6.t977, i0.i1.i0.u6.t984, i0.i1.i0.u6.t986, i0.i1.i0.u6.t988, i0.i1.i0.u6.t994, i0.i1.i0.u6.t1001, i0.i1.i0.u6.t1003, i0.i1.i0.u6.t1005, i0.i1.i0.u6.t1007, i0.i1.i0.u6.t1009, i0.i1.i0.u6.t1015, i0.i1.i0.u6.t1016, i0.i1.i0.u6.t1018, i0.i1.i0.u6.t1020, i0.i1.i0.u6.t1040, i0.i1.i0.u6.t1041, i0.i1.i0.u6.t1047, i0.i1.i0.u6.t1071, i0.i1.i0.u6.t1082, i0.i1.i0.u6.t1112, i0.i1.i0.u6.t1121, i0.i1.i0.u6.t1153, i0.i1.i0.u6.t1170, i0.i1.i0.u6.t1172, i0.i1.i0.u6.t1179, i0.i1.i0.u6.t1198, i0.i1.i0.u6.t1199, i0.i1.i0.u6.t1205, i0.i1.i0.u6.t1229, i0.i1.i0.u6.t1240, i0.i1.i0.u6.t1266, i0.i1.i0.u6.t1275, i0.i1.i0.u6.t1307, i0.i1.i0.u6.t1322, i0.i1.i0.u6.t1324, i0.i1.i0.u6.t1335, i0.i1.i0.u6.t1343, i0.i1.i0.u6.t1389, i0.i1.i0.u6.t1404, i0.i1.i0.u6.t1414, i0.i1.i0.u6.t1435, i0.i1.i0.u6.t1451, i0.i1.i0.u6.t1459, Intersection with reachable at each step enabled. (destroyed/reverse/intersect/total) :0/2810/284/3094
terminate called after throwing an instance of 'St9bad_alloc'
what(): std::bad_alloc

BK_STOP 1527227805218

--------------------
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 CTLFireability -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 CTLFireability -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 25, 2018 5:44:40 AM fr.lip6.move.gal.application.Application start
INFO: Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -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 25, 2018 5:44:40 AM fr.lip6.move.gal.application.MccTranslator transformPNML
INFO: Parsing pnml file : /home/mcc/execution/model.pnml
May 25, 2018 5:44:41 AM fr.lip6.move.gal.nupn.PTNetReader loadFromXML
INFO: Load time of PNML (sax parser for PT used): 355 ms
May 25, 2018 5:44:41 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 2584 places.
May 25, 2018 5:44:41 AM fr.lip6.move.gal.pnml.togal.PTGALTransformer handlePage
INFO: Transformed 3094 transitions.
May 25, 2018 5:44:41 AM fr.lip6.move.gal.pnml.togal.PnmlToGalTransformer transform
INFO: Found NUPN structural information;
May 25, 2018 5:44:41 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/model.pnml.img.gal : 72 ms
May 25, 2018 5:44:41 AM fr.lip6.move.gal.application.MccTranslator applyOrder
INFO: Applying decomposition
May 25, 2018 5:44:42 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 576 ms
May 25, 2018 5:44:42 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 286 ms
May 25, 2018 5:44:42 AM fr.lip6.move.gal.instantiate.CompositeBuilder decomposeWithOrder
INFO: Decomposing Gal with order
May 25, 2018 5:44:42 AM fr.lip6.move.gal.instantiate.GALRewriter flatten
INFO: Flatten gal took : 258 ms
May 25, 2018 5:44:42 AM fr.lip6.move.gal.instantiate.CompositeBuilder rewriteArraysToAllowPartition
INFO: Rewriting arrays to variables to allow decomposition.
May 25, 2018 5:44:43 AM fr.lip6.move.gal.instantiate.Instantiator fuseIsomorphicEffects
INFO: Removed a total of 122 redundant transitions.
May 25, 2018 5:44:43 AM fr.lip6.move.serialization.SerializationUtil systemToFile
INFO: Time to serialize gal into /home/mcc/execution/CTLFireability.pnml.gal : 20 ms
May 25, 2018 5:44:43 AM fr.lip6.move.serialization.SerializationUtil serializePropertiesForITSCTLTools
INFO: Time to serialize properties into /home/mcc/execution/CTLFireability.ctl : 2 ms
ITS-tools command line returned an error code 134

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="CloudReconfiguration-PT-301"
export BK_EXAMINATION="CTLFireability"
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/CloudReconfiguration-PT-301.tgz
mv CloudReconfiguration-PT-301 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 CloudReconfiguration-PT-301, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r057-smll-152646384500004"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.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 ;