Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r298-tall-167873952000654.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool marciexred
Input is PolyORBNT-COL-S05J40, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r298-tall-167873952000654
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 564K
-rw-r--r-- 1 mcc users 7.5K Feb 25 23:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K Feb 25 23:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.4K Feb 25 23:23 CTLFireability.txt
-rw-r--r-- 1 mcc users 66K Feb 25 23:23 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.2K Feb 25 16:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 16:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 25 23:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Feb 25 23:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.5K Feb 25 23:33 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 74K Feb 25 23:33 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Feb 25 16:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 93K Mar 5 18:23 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 PolyORBNT-COL-S05J40-ReachabilityCardinality-00
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-01
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-02
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-03
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-04
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-05
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-06
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-07
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-08
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-09
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-10
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-11
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-12
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-13
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-14
FORMULA_NAME PolyORBNT-COL-S05J40-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1679621539651

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=marciexred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PolyORBNT-COL-S05J40
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-24 01:32:21] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2023-03-24 01:32:21] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-24 01:32:21] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2023-03-24 01:32:21] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-24 01:32:21] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 467 ms
[2023-03-24 01:32:21] [INFO ] Imported 48 HL places and 38 HL transitions for a total of 669 PT places and 1712.0 transition bindings in 18 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 21 ms.
Working with output stream class java.io.PrintStream
[2023-03-24 01:32:21] [INFO ] Built PT skeleton of HLPN with 48 places and 38 transitions 140 arcs in 5 ms.
[2023-03-24 01:32:21] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Remains 16 properties that can be checked using skeleton over-approximation.
Computed a total of 0 stabilizing places and 0 stable transitions
[2023-03-24 01:32:21] [INFO ] Flatten gal took : 18 ms
[2023-03-24 01:32:21] [INFO ] Flatten gal took : 6 ms
Transition Run forces synchronizations/join behavior on parameter j of sort Jobs
Transition trans_376 forces synchronizations/join behavior on parameter s of sort Sources
Symmetric sort wr.t. initial and guards and successors and join/free detected :States
Arc [42:1*[$t, 0, $j]] contains constants of sort States
Transition WillPerformWork : constants on arcs in [[42:1*[$t, 0, $j]]] introduces in States(2) partition with 1 elements that refines current partition to 2 subsets.
[2023-03-24 01:32:22] [INFO ] Unfolded HLPN to a Petri net with 669 places and 1630 transitions 10784 arcs in 49 ms.
[2023-03-24 01:32:22] [INFO ] Unfolded 16 HLPN properties in 1 ms.
Deduced a syphon composed of 40 places in 8 ms
Reduce places removed 40 places and 40 transitions.
Ensure Unique test removed 655 transitions
Reduce redundant transitions removed 655 transitions.
Incomplete random walk after 10000 steps, including 680 resets, run finished after 654 ms. (steps per millisecond=15 ) properties (out of 16) seen :3
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 152 resets, run finished after 94 ms. (steps per millisecond=106 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 132 resets, run finished after 73 ms. (steps per millisecond=137 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 248 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 110 resets, run finished after 114 ms. (steps per millisecond=87 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 246 resets, run finished after 132 ms. (steps per millisecond=75 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 256 resets, run finished after 174 ms. (steps per millisecond=57 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 150 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 87 resets, run finished after 47 ms. (steps per millisecond=212 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 51 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 141 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 23 resets, run finished after 305 ms. (steps per millisecond=32 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 303 resets, run finished after 91 ms. (steps per millisecond=109 ) properties (out of 13) seen :0
Incomplete Best-First random walk after 10001 steps, including 248 resets, run finished after 68 ms. (steps per millisecond=147 ) properties (out of 13) seen :0
Running SMT prover for 13 properties.
[2023-03-24 01:32:24] [INFO ] Flow matrix only has 931 transitions (discarded 4 similar events)
// Phase 1: matrix 931 rows 629 cols
[2023-03-24 01:32:24] [INFO ] Computed 102 place invariants in 74 ms
[2023-03-24 01:32:25] [INFO ] [Real]Absence check using 95 positive place invariants in 82 ms returned sat
[2023-03-24 01:32:25] [INFO ] [Real]Absence check using 95 positive and 7 generalized place invariants in 19 ms returned sat
[2023-03-24 01:32:25] [INFO ] After 646ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0 real:12
[2023-03-24 01:32:25] [INFO ] [Nat]Absence check using 95 positive place invariants in 35 ms returned sat
[2023-03-24 01:32:26] [INFO ] [Nat]Absence check using 95 positive and 7 generalized place invariants in 20 ms returned sat
[2023-03-24 01:32:26] [INFO ] After 426ms SMT Verify possible using all constraints in natural domain returned unsat :13 sat :0
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-14 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-13 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-12 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-11 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-09 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-08 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-06 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-03 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-02 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-01 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-COL-S05J40-ReachabilityCardinality-00 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 13 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 1 ms.
All properties solved without resorting to model-checking.
Total runtime 4810 ms.
timeout --kill-after=10s --signal=SIGINT 1m for testing only

Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=ReachabilityCardinality.xml --memory=6 --mcc-mode

parse successfull
net created successfully

Unfolding complete |P|=669|T|=1630|A|=12244
Time for unfolding: 0m 2.674sec

Net: PolyORBNT_COL_S05J40
(NrP: 669 NrTr: 1630 NrArc: 10784)

parse formulas
formulas created successfully
place and transition orderings generation:0m 0.207sec

net check time: 0m 0.006sec

init dd package: 0m 2.686sec

TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393216 kB
MemFree: 6532216 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16099044 kB

BK_TIME_CONFINEMENT_REACHED

--------------------
content from stderr:

+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -timeout 360 -rebuildPNML
check for maximal unmarked siphon
found
The net has a maximal unmarked siphon:
Schedule_Task_E_Threads1_States1_Jobs1
Schedule_Task_E_Threads1_States1_Jobs2
Schedule_Task_E_Threads1_States1_Jobs3
Schedule_Task_E_Threads1_States1_Jobs4
Schedule_Task_E_Threads1_States1_Jobs5
Schedule_Task_E_Threads1_States1_Jobs6
Schedule_Task_E_Threads1_States1_Jobs7
Schedule_Task_E_Threads1_States1_Jobs8
Schedule_Task_E_Threads1_States1_Jobs9
Schedule_Task_E_Threads1_States1_Jobs10
Schedule_Task_E_Threads1_States1_Jobs11
Schedule_Task_E_Threads1_States1_Jobs12
Schedule_Task_E_Threads1_States1_Jobs13
Schedule_Task_E_Threads1_States1_Jobs14
Schedule_Task_E_Threads1_States1_Jobs15
Schedule_Task_E_Threads1_States1_Jobs16
Schedule_Task_E_Threads1_States1_Jobs17
Schedule_Task_E_Threads1_States1_Jobs18
Schedule_Task_E_Threads1_States1_Jobs19
Schedule_Task_E_Threads1_States1_Jobs20
Schedule_Task_E_Threads1_States1_Jobs21
Schedule_Task_E_Threads1_States1_Jobs22
Schedule_Task_E_Threads1_States1_Jobs23
Schedule_Task_E_Threads1_States1_Jobs24
Schedule_Task_E_Threads1_States1_Jobs25
Schedule_Task_E_Threads1_States1_Jobs26
Schedule_Task_E_Threads1_States1_Jobs27
Schedule_Task_E_Threads1_States1_Jobs28
Schedule_Task_E_Threads1_States1_Jobs29
Schedule_Task_E_Threads1_States1_Jobs30
Schedule_Task_E_Threads1_States1_Jobs31
Schedule_Task_E_Threads1_States1_Jobs32
Schedule_Task_E_Threads1_States1_Jobs33
Schedule_Task_E_Threads1_States1_Jobs34
Schedule_Task_E_Threads1_States1_Jobs35
Schedule_Task_E_Threads1_States1_Jobs36
Schedule_Task_E_Threads1_States1_Jobs37
Schedule_Task_E_Threads1_States1_Jobs38
Schedule_Task_E_Threads1_States1_Jobs39
Schedule_Task_E_Threads1_States1_Jobs40

The net has transition(s) that can never fire:
GoCheckSource_1_1_0
GoCheckSource_2_1_0
GoCheckSource_3_1_0
GoCheckSource_4_1_0
GoCheckSource_5_1_0
GoCheckSource_6_1_0
GoCheckSource_7_1_0
GoCheckSource_8_1_0
GoCheckSource_9_1_0
GoCheckSource_10_1_0
GoCheckSource_11_1_0
GoCheckSource_12_1_0
GoCheckSource_13_1_0
GoCheckSource_14_1_0
GoCheckSource_15_1_0
GoCheckSource_16_1_0
GoCheckSource_17_1_0
GoCheckSource_18_1_0
GoCheckSource_19_1_0
GoCheckSource_20_1_0
GoCheckSource_21_1_0
GoCheckSource_22_1_0
GoCheckSource_23_1_0
GoCheckSource_24_1_0
GoCheckSource_25_1_0
GoCheckSource_26_1_0
GoCheckSource_27_1_0
GoCheckSource_28_1_0
GoCheckSource_29_1_0
GoCheckSource_30_1_0
GoCheckSource_31_1_0
GoCheckSource_32_1_0
GoCheckSource_33_1_0
GoCheckSource_34_1_0
GoCheckSource_35_1_0
GoCheckSource_36_1_0
GoCheckSource_37_1_0
GoCheckSource_38_1_0
GoCheckSource_39_1_0
GoCheckSource_40_1_0

check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok


initing FirstDep: 0m 0.009sec

81055 192341 276651 479293 1086694 1669638 2528628

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="PolyORBNT-COL-S05J40"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="marciexred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# 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 2-5348"
echo " Executing tool marciexred"
echo " Input is PolyORBNT-COL-S05J40, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r298-tall-167873952000654"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-COL-S05J40.tgz
mv PolyORBNT-COL-S05J40 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "StateSpace" ]; 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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;