Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r147-tall-162089138000253.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2021-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is ParamProductionCell-PT-5, examination is StableMarking
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r147-tall-162089138000253
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 612K
-rw-r--r-- 1 mcc users 25K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 158K May 10 09:43 CTLCardinality.xml
-rw-r--r-- 1 mcc users 18K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 98K May 10 09:43 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.0K Mar 28 16:23 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 28 16:23 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Mar 28 16:23 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 28 16:23 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 27 06:35 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 19K Mar 27 06:35 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Mar 25 07:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 13K Mar 25 07:56 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Mar 22 09:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 22 09:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:51 equiv_col
-rw-r--r-- 1 mcc users 2 May 5 16:51 instance
-rw-r--r-- 1 mcc users 6 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 174K May 5 16:51 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME StableMarking

=== Now, execution of the tool begins

BK_START 1620948047751

Running Version 0
[2021-05-13 23:20:49] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, StableMarking, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2021-05-13 23:20:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-13 23:20:49] [INFO ] Load time of PNML (sax parser for PT used): 64 ms
[2021-05-13 23:20:49] [INFO ] Transformed 231 places.
[2021-05-13 23:20:49] [INFO ] Transformed 202 transitions.
[2021-05-13 23:20:49] [INFO ] Found NUPN structural information;
[2021-05-13 23:20:49] [INFO ] Parsed PT model containing 231 places and 202 transitions in 104 ms.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 231) seen :228
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 20 ms. (steps per millisecond=500 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 3) seen :0
Running SMT prover for 3 properties.
// Phase 1: matrix 202 rows 231 cols
[2021-05-13 23:20:49] [INFO ] Computed 59 place invariants in 23 ms
[2021-05-13 23:20:49] [INFO ] [Real]Absence check using 35 positive place invariants in 23 ms returned sat
[2021-05-13 23:20:49] [INFO ] [Real]Absence check using 35 positive and 24 generalized place invariants in 11 ms returned sat
[2021-05-13 23:20:49] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-13 23:20:49] [INFO ] [Real]Absence check using state equation in 63 ms returned sat
[2021-05-13 23:20:49] [INFO ] Solution in real domain found non-integer solution.
[2021-05-13 23:20:49] [INFO ] [Nat]Absence check using 35 positive place invariants in 9 ms returned sat
[2021-05-13 23:20:49] [INFO ] [Nat]Absence check using 35 positive and 24 generalized place invariants in 5 ms returned sat
[2021-05-13 23:20:49] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-13 23:20:49] [INFO ] [Nat]Absence check using state equation in 56 ms returned sat
[2021-05-13 23:20:49] [INFO ] State equation strengthened by 68 read => feed constraints.
[2021-05-13 23:20:50] [INFO ] [Nat]Added 68 Read/Feed constraints in 20 ms returned sat
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 8 places in 104 ms of which 11 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 30 places in 63 ms of which 1 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 7 places in 50 ms of which 1 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 10 places in 28 ms of which 1 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 5 places in 26 ms of which 1 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 10 places in 19 ms of which 0 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 393 ms
[2021-05-13 23:20:50] [INFO ] Computed and/alt/rep : 192/512/192 causal constraints (skipped 5 transitions) in 14 ms.
[2021-05-13 23:20:50] [INFO ] Deduced a trap composed of 8 places in 26 ms of which 1 ms to minimize.
[2021-05-13 23:20:50] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 53 ms
[2021-05-13 23:20:50] [INFO ] Added : 131 causal constraints over 27 iterations in 511 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 4 ms.
[2021-05-13 23:20:50] [INFO ] [Real]Absence check using 35 positive place invariants in 12 ms returned sat
[2021-05-13 23:20:50] [INFO ] [Real]Absence check using 35 positive and 24 generalized place invariants in 5 ms returned sat
[2021-05-13 23:20:50] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-13 23:20:51] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2021-05-13 23:20:51] [INFO ] Solution in real domain found non-integer solution.
[2021-05-13 23:20:51] [INFO ] [Nat]Absence check using 35 positive place invariants in 9 ms returned sat
[2021-05-13 23:20:51] [INFO ] [Nat]Absence check using 35 positive and 24 generalized place invariants in 5 ms returned sat
[2021-05-13 23:20:51] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-13 23:20:51] [INFO ] [Nat]Absence check using state equation in 49 ms returned sat
[2021-05-13 23:20:51] [INFO ] [Nat]Added 68 Read/Feed constraints in 15 ms returned sat
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 8 places in 47 ms of which 1 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 5 places in 50 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 33 places in 58 ms of which 12 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 8 places in 41 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 8 places in 44 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 30 places in 46 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 16 places in 33 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 42 places in 28 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 18 places in 43 ms of which 1 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 33 places in 44 ms of which 0 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 24 places in 43 ms of which 1 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Deduced a trap composed of 10 places in 17 ms of which 1 ms to minimize.
[2021-05-13 23:20:51] [INFO ] Trap strengthening (SAT) tested/added 13/12 trap constraints in 637 ms
[2021-05-13 23:20:51] [INFO ] Computed and/alt/rep : 192/512/192 causal constraints (skipped 5 transitions) in 12 ms.
[2021-05-13 23:20:52] [INFO ] Added : 138 causal constraints over 28 iterations in 450 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 4 ms.
[2021-05-13 23:20:52] [INFO ] [Real]Absence check using 35 positive place invariants in 8 ms returned sat
[2021-05-13 23:20:52] [INFO ] [Real]Absence check using 35 positive and 24 generalized place invariants in 5 ms returned sat
[2021-05-13 23:20:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-13 23:20:52] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2021-05-13 23:20:52] [INFO ] Solution in real domain found non-integer solution.
[2021-05-13 23:20:52] [INFO ] [Nat]Absence check using 35 positive place invariants in 9 ms returned sat
[2021-05-13 23:20:52] [INFO ] [Nat]Absence check using 35 positive and 24 generalized place invariants in 5 ms returned sat
[2021-05-13 23:20:52] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-13 23:20:52] [INFO ] [Nat]Absence check using state equation in 60 ms returned sat
[2021-05-13 23:20:52] [INFO ] [Nat]Added 68 Read/Feed constraints in 15 ms returned sat
[2021-05-13 23:20:52] [INFO ] Deduced a trap composed of 8 places in 48 ms of which 1 ms to minimize.
[2021-05-13 23:20:52] [INFO ] Deduced a trap composed of 55 places in 38 ms of which 0 ms to minimize.
[2021-05-13 23:20:52] [INFO ] Deduced a trap composed of 10 places in 38 ms of which 1 ms to minimize.
[2021-05-13 23:20:52] [INFO ] Deduced a trap composed of 5 places in 37 ms of which 0 ms to minimize.
[2021-05-13 23:20:52] [INFO ] Deduced a trap composed of 9 places in 37 ms of which 1 ms to minimize.
[2021-05-13 23:20:52] [INFO ] Trap strengthening (SAT) tested/added 6/5 trap constraints in 265 ms
[2021-05-13 23:20:52] [INFO ] Computed and/alt/rep : 192/512/192 causal constraints (skipped 5 transitions) in 13 ms.
[2021-05-13 23:20:53] [INFO ] Deduced a trap composed of 10 places in 19 ms of which 0 ms to minimize.
[2021-05-13 23:20:53] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 45 ms
[2021-05-13 23:20:53] [INFO ] Added : 189 causal constraints over 38 iterations in 737 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 6 ms.
Incomplete Parikh walk after 14100 steps, including 158 resets, run finished after 71 ms. (steps per millisecond=198 ) properties (out of 3) seen :0 could not realise parikh vector
Incomplete Parikh walk after 14100 steps, including 233 resets, run finished after 55 ms. (steps per millisecond=256 ) properties (out of 3) seen :0 could not realise parikh vector
Incomplete Parikh walk after 45500 steps, including 410 resets, run finished after 176 ms. (steps per millisecond=258 ) properties (out of 3) seen :0 could not realise parikh vector
Support contains 3 out of 231 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 231/231 places, 202/202 transitions.
Performed 14 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 14 Pre rules applied. Total rules applied 0 place count 231 transition count 188
Deduced a syphon composed of 14 places in 2 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 0 with 28 rules applied. Total rules applied 28 place count 217 transition count 188
Discarding 5 places :
Symmetric choice reduction at 0 with 5 rule applications. Total rules 33 place count 212 transition count 183
Iterating global reduction 0 with 5 rules applied. Total rules applied 38 place count 212 transition count 183
Performed 18 Post agglomeration using F-continuation condition.Transition count delta: 18
Deduced a syphon composed of 18 places in 2 ms
Reduce places removed 18 places and 0 transitions.
Iterating global reduction 0 with 36 rules applied. Total rules applied 74 place count 194 transition count 165
Free-agglomeration rule (complex) applied 4 times.
Iterating global reduction 0 with 4 rules applied. Total rules applied 78 place count 194 transition count 161
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 82 place count 190 transition count 161
Applied a total of 82 rules in 86 ms. Remains 190 /231 variables (removed 41) and now considering 161/202 (removed 41) transitions.
Finished structural reductions, in 1 iterations. Remains : 190/231 places, 161/202 transitions.
[2021-05-13 23:20:54] [INFO ] Flatten gal took : 75 ms
[2021-05-13 23:20:54] [INFO ] Flatten gal took : 15 ms
[2021-05-13 23:20:54] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality3878785233020711088.gal : 35 ms
[2021-05-13 23:20:54] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8870405031096465965.prop : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality3878785233020711088.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality8870405031096465965.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality3878785233020711088.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality8870405031096465965.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality8870405031096465965.prop.
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :2 after 6
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :6 after 9
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :9 after 21
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :21 after 132
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :132 after 394
SDD proceeding with computation,3 properties remain. new max is 256
SDD size :394 after 664
SDD proceeding with computation,3 properties remain. new max is 512
SDD size :4648 after 8033
SDD proceeding with computation,3 properties remain. new max is 1024
SDD size :8033 after 10760
Invariant property smplace_134 does not hold.
Invariant property smplace_133 does not hold.
Invariant property smplace_129 does not hold.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 1025 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,36512,0.207424,10920,2,6650,19,28731,6,0,924,18496,0
Total reachable state count : 36512

Verifying 3 reachability properties.
Invariant property smplace_129 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_129,1,0.208438,10920,2,191,19,28731,7,0,927,18496,0
Invariant property smplace_133 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_133,1,0.209157,10920,2,191,19,28731,8,0,929,18496,0
Invariant property smplace_134 does not hold.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
smplace\_134,2,0.20966,10920,2,203,19,28731,9,0,931,18496,0
Able to resolve query StableMarking after proving 231 properties.
FORMULA StableMarking FALSE TECHNIQUES RANDOM_WALK DECISION_DIAGRAMS COLLATERAL_PROCESSING TOPOLOGICAL

BK_STOP 1620948055589

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ StableMarking = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution StableMarking -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination StableMarking -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="ParamProductionCell-PT-5"
export BK_EXAMINATION="StableMarking"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 2-4028"
echo " Executing tool itstools"
echo " Input is ParamProductionCell-PT-5, examination is StableMarking"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r147-tall-162089138000253"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ParamProductionCell-PT-5.tgz
mv ParamProductionCell-PT-5 execution
cd execution
if [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "UpperBounds" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] || [ "StableMarking" = "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 [ "StableMarking" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "StableMarking" != "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 "StableMarking.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property StableMarking.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "StableMarking.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 '' StableMarking.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "StableMarking" = "ReachabilityDeadlock" ] || [ "StableMarking" = "QuasiLiveness" ] || [ "StableMarking" = "StableMarking" ] || [ "StableMarking" = "Liveness" ] || [ "StableMarking" = "OneSafe" ] ; then
echo "FORMULA_NAME StableMarking"
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 ;