About the Execution of ITS-Tools for SafeBus-COL-50
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 16120.399 | 358776.00 | 446742.00 | 25469.10 | F???T?T?????F?F? | normal |
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.r357-smll-167891806000244.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)
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................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=====================================================================
Generated by BenchKit 2-5348
Executing tool itstools
Input is SafeBus-COL-50, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r357-smll-167891806000244
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 448K
-rw-r--r-- 1 mcc users 5.5K Feb 26 01:29 CTLCardinality.txt
-rw-r--r-- 1 mcc users 49K Feb 26 01:29 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K Feb 26 01:29 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Feb 26 01:29 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:49 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Feb 25 16:49 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 16:49 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 16:49 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Feb 26 01:29 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 133K Feb 26 01:29 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Feb 26 01:29 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 37K Feb 26 01:29 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:49 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 16:49 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 3 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 43K 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 SafeBus-COL-50-LTLFireability-00
FORMULA_NAME SafeBus-COL-50-LTLFireability-01
FORMULA_NAME SafeBus-COL-50-LTLFireability-02
FORMULA_NAME SafeBus-COL-50-LTLFireability-03
FORMULA_NAME SafeBus-COL-50-LTLFireability-04
FORMULA_NAME SafeBus-COL-50-LTLFireability-05
FORMULA_NAME SafeBus-COL-50-LTLFireability-06
FORMULA_NAME SafeBus-COL-50-LTLFireability-07
FORMULA_NAME SafeBus-COL-50-LTLFireability-08
FORMULA_NAME SafeBus-COL-50-LTLFireability-09
FORMULA_NAME SafeBus-COL-50-LTLFireability-10
FORMULA_NAME SafeBus-COL-50-LTLFireability-11
FORMULA_NAME SafeBus-COL-50-LTLFireability-12
FORMULA_NAME SafeBus-COL-50-LTLFireability-13
FORMULA_NAME SafeBus-COL-50-LTLFireability-14
FORMULA_NAME SafeBus-COL-50-LTLFireability-15
=== Now, execution of the tool begins
BK_START 1679062904673
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=itstools
BK_EXAMINATION=LTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SafeBus-COL-50
Not applying reductions.
Model is COL
LTLFireability COL
Running Version 202303021504
[2023-03-17 14:21:48] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-17 14:21:48] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 14:21:48] [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.
[2023-03-17 14:21:48] [WARNING] Using fallBack plugin, rng conformance not checked
[2023-03-17 14:21:49] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 817 ms
[2023-03-17 14:21:49] [INFO ] Detected 1 constant HL places corresponding to 50 PT places.
[2023-03-17 14:21:49] [INFO ] Imported 20 HL places and 14 HL transitions for a total of 5606 PT places and 6520101.0 transition bindings in 45 ms.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 17 ms.
Working with output stream class java.io.PrintStream
[2023-03-17 14:21:49] [INFO ] Built PT skeleton of HLPN with 20 places and 14 transitions 68 arcs in 8 ms.
[2023-03-17 14:21:49] [INFO ] Skeletonized 16 HLPN properties in 2 ms.
Initial state reduction rules removed 4 formulas.
FORMULA SafeBus-COL-50-LTLFireability-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SafeBus-COL-50-LTLFireability-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SafeBus-COL-50-LTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SafeBus-COL-50-LTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 3 stabilizing places and 0 stable transitions
Remains 10 properties that can be checked using skeleton over-approximation.
Reduce places removed 3 places and 0 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Finished random walk after 244 steps, including 0 resets, run visited all 13 properties in 20 ms. (steps per millisecond=12 )
[2023-03-17 14:21:49] [INFO ] Flatten gal took : 22 ms
[2023-03-17 14:21:49] [INFO ] Flatten gal took : 6 ms
Domain [It(50), It(50)] of place AMC breaks symmetries in sort It
[2023-03-17 14:21:51] [INFO ] Unfolded HLPN to a Petri net with 5606 places and 140251 transitions 1078454 arcs in 1530 ms.
[2023-03-17 14:21:51] [INFO ] Unfolded 12 HLPN properties in 27 ms.
[2023-03-17 14:21:51] [INFO ] Reduced 2400 identical enabling conditions.
[2023-03-17 14:21:51] [INFO ] Reduced 2400 identical enabling conditions.
[2023-03-17 14:21:51] [INFO ] Reduced 2400 identical enabling conditions.
[2023-03-17 14:21:51] [INFO ] Reduced 2400 identical enabling conditions.
Deduced a syphon composed of 50 places in 373 ms
Reduce places removed 100 places and 100 transitions.
Support contains 5456 out of 5506 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 433 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 14:22:00] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
// Phase 1: matrix 15202 rows 5506 cols
[2023-03-17 14:22:02] [INFO ] Computed 205 place invariants in 1792 ms
[2023-03-17 14:22:03] [INFO ] Implicit Places using invariants in 3333 ms returned []
Implicit Place search using SMT only with invariants took 3381 ms to find 0 implicit places.
[2023-03-17 14:22:03] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 14:22:03] [INFO ] Invariant cache hit.
[2023-03-17 14:22:34] [INFO ] Performed 26542/140151 'is it Dead' test of which 0 returned DEAD in 30 seconds.
[2023-03-17 14:23:03] [INFO ] Dead Transitions using invariants and state equation in 60073 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 63915 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Support contains 5456 out of 5506 places after structural reductions.
[2023-03-17 14:23:13] [INFO ] Flatten gal took : 6554 ms
[2023-03-17 14:23:33] [INFO ] Flatten gal took : 9225 ms
[2023-03-17 14:23:55] [INFO ] Input system was already deterministic with 140151 transitions.
Finished random walk after 2147 steps, including 0 resets, run visited all 16 properties in 2393 ms. (steps per millisecond=0 )
FORMULA SafeBus-COL-50-LTLFireability-12 FALSE TECHNIQUES REACHABILITY_KNOWLEDGE
Computed a total of 0 stabilizing places and 0 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202303021504/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!((!p0 U (!p1&&F(p2)&&F(!p0))))'
Support contains 5103 out of 5506 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 33977 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 14:24:41] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 14:24:41] [INFO ] Invariant cache hit.
[2023-03-17 14:24:48] [INFO ] Implicit Places using invariants in 7510 ms returned []
Implicit Place search using SMT only with invariants took 7538 ms to find 0 implicit places.
[2023-03-17 14:24:48] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 14:24:48] [INFO ] Invariant cache hit.
[2023-03-17 14:24:49] [INFO ] Dead Transitions using invariants and state equation in 1114 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 42635 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Stuttering acceptance computed with spot in 488 ms :[(OR (NOT p2) p0 p1), true, (NOT p2), p0]
Running random walk in product with property : SafeBus-COL-50-LTLFireability-01 automaton TGBA Formula[mat=[[{ cond=(AND p1 (NOT p0)), acceptance={} source=0 dest: 0}, { cond=(AND p1 p0), acceptance={} source=0 dest: 1}, { cond=(AND (NOT p1) (NOT p2)), acceptance={} source=0 dest: 2}, { cond=(AND (NOT p1) p0), acceptance={} source=0 dest: 3}], [{ cond=true, acceptance={} source=1 dest: 1}], [{ cond=(NOT p2), acceptance={} source=2 dest: 2}], [{ cond=p0, acceptance={} source=3 dest: 3}]], initial=0, aps=[p1:(OR (AND (GEQ s0 1) (GEQ s100 1) (GEQ s1501 1) (GEQ s5455 1)) (AND (GEQ s24 1) (GEQ s100 1) (GEQ s1475 1) (GEQ s5455 1)) (AND (GEQ s37 1) (GEQ s100 1) ...], nbAcceptance=0, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][true, true, true, true]]
Product exploration timeout after 39490 steps with 880 reset in 10001 ms.
Product exploration timeout after 38260 steps with 859 reset in 10003 ms.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(AND (NOT p1) (NOT p0) (NOT p2)), (X (NOT p2)), (X (NOT (AND (NOT p1) p0))), (X (NOT (AND p1 p0))), (X (NOT (AND (NOT p1) (NOT p2)))), (X (AND p1 (NOT p0))), (X (NOT p0)), true, (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT (AND p1 p0)))), (X (X (NOT p0)))]
False Knowledge obtained : [(X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2))))), (X (X (AND p1 (NOT p0)))), (X (X (NOT (AND p1 (NOT p0)))))]
Knowledge based reduction with 12 factoid took 787 ms. Reduced automaton from 4 states, 7 edges and 3 AP (stutter insensitive) to 2 states, 2 edges and 1 AP (stutter sensitive).
Stuttering acceptance computed with spot in 105 ms :[(NOT p2), (NOT p2)]
Finished random walk after 43 steps, including 0 resets, run visited all 1 properties in 15 ms. (steps per millisecond=2 )
Knowledge obtained : [(AND (NOT p1) (NOT p0) (NOT p2)), (X (NOT p2)), (X (NOT (AND (NOT p1) p0))), (X (NOT (AND p1 p0))), (X (NOT (AND (NOT p1) (NOT p2)))), (X (AND p1 (NOT p0))), (X (NOT p0)), true, (X (X (NOT p2))), (X (X (NOT (AND (NOT p1) p0)))), (X (X (NOT (AND p1 p0)))), (X (X (NOT p0)))]
False Knowledge obtained : [(X (X (AND (NOT p1) (NOT p2)))), (X (X (NOT (AND (NOT p1) (NOT p2))))), (X (X (AND p1 (NOT p0)))), (X (X (NOT (AND p1 (NOT p0))))), (F p2)]
Knowledge based reduction with 12 factoid took 636 ms. Reduced automaton from 2 states, 2 edges and 1 AP (stutter sensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 49 ms :[(NOT p2)]
Stuttering acceptance computed with spot in 50 ms :[(NOT p2)]
[2023-03-17 14:25:16] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 14:25:33] [INFO ] Invariant cache hit.
Could not prove EG (NOT p2)
Support contains 2451 out of 5506 places. Attempting structural reductions.
Property had overlarge support with respect to TGBA, discarding it for now.
Starting structural reductions in SI_LTL mode, iteration 0 : 5506/5506 places, 140151/140151 transitions.
Applied a total of 0 rules in 34876 ms. Remains 5506 /5506 variables (removed 0) and now considering 140151/140151 (removed 0) transitions.
[2023-03-17 14:26:23] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 14:26:23] [INFO ] Invariant cache hit.
[2023-03-17 14:26:24] [INFO ] Implicit Places using invariants in 858 ms returned []
Implicit Place search using SMT only with invariants took 859 ms to find 0 implicit places.
[2023-03-17 14:26:24] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
[2023-03-17 14:26:24] [INFO ] Invariant cache hit.
[2023-03-17 14:26:25] [INFO ] Dead Transitions using invariants and state equation in 851 ms found 0 transitions.
Finished structural reductions in SI_LTL mode , in 1 iterations and 36602 ms. Remains : 5506/5506 places, 140151/140151 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Knowledge obtained : [(NOT p2), (X (NOT p2)), (X (X (NOT p2)))]
False Knowledge obtained : []
Knowledge based reduction with 3 factoid took 146 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 46 ms :[(NOT p2)]
Finished random walk after 51 steps, including 0 resets, run visited all 1 properties in 20 ms. (steps per millisecond=2 )
Knowledge obtained : [(NOT p2), (X (NOT p2)), (X (X (NOT p2)))]
False Knowledge obtained : [(F p2)]
Knowledge based reduction with 3 factoid took 136 ms. Reduced automaton from 1 states, 1 edges and 1 AP (stutter insensitive) to 1 states, 1 edges and 1 AP (stutter insensitive).
Stuttering acceptance computed with spot in 35 ms :[(NOT p2)]
Stuttering acceptance computed with spot in 37 ms :[(NOT p2)]
[2023-03-17 14:26:27] [INFO ] Flow matrix only has 15202 transitions (discarded 124949 similar events)
BK_STOP 1679063263449
--------------------
content from stderr:
+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
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="SafeBus-COL-50"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itstools"
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 itstools"
echo " Input is SafeBus-COL-50, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r357-smll-167891806000244"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/SafeBus-COL-50.tgz
mv SafeBus-COL-50 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;