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.r075-tall-162039097500300.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)
...................
=====================================================================
Generated by BenchKit 2-4028
Executing tool gold2020
Input is DNAwalker-PT-09ringLR, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r075-tall-162039097500300
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 512K
-rw-r--r-- 1 mcc users 11K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 102K May 5 16:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 15K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 127K May 5 16:58 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Mar 28 16:00 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 28 16:00 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 28 16:00 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 28 16:00 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K Mar 23 10:01 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 18K Mar 23 10:01 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Mar 22 17:36 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 22 17:36 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 22 09:10 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 22 09:10 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:51 equiv_col
-rw-r--r-- 1 mcc users 9 May 5 16:51 instance
-rw-r--r-- 1 mcc users 6 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 112K 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

here is the order used to build the result vector(from text file)
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-00
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-01
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-02
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-03
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-04
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-05
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-06
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-07
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-08
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-09
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-10
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-11
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-12
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-13
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-14
FORMULA_NAME DNAwalker-PT-09ringLR-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1620560521552

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2021-05-09 11:42:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2021-05-09 11:42:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-09 11:42:03] [INFO ] Load time of PNML (sax parser for PT used): 65 ms
[2021-05-09 11:42:03] [INFO ] Transformed 27 places.
[2021-05-09 11:42:03] [INFO ] Transformed 260 transitions.
[2021-05-09 11:42:03] [INFO ] Parsed PT model containing 27 places and 260 transitions in 104 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 17 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 795 resets, run finished after 98 ms. (steps per millisecond=102 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 54 resets, run finished after 14 ms. (steps per millisecond=714 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 53 resets, run finished after 26 ms. (steps per millisecond=384 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 46 resets, run finished after 22 ms. (steps per millisecond=454 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 46 resets, run finished after 29 ms. (steps per millisecond=344 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 53 resets, run finished after 12 ms. (steps per millisecond=833 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 53 resets, run finished after 16 ms. (steps per millisecond=625 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 58 resets, run finished after 10 ms. (steps per millisecond=1000 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 45 resets, run finished after 11 ms. (steps per millisecond=909 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 52 resets, run finished after 46 ms. (steps per millisecond=217 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10000 steps, including 54 resets, run finished after 15 ms. (steps per millisecond=666 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 58 resets, run finished after 16 ms. (steps per millisecond=625 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 52 resets, run finished after 13 ms. (steps per millisecond=769 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 56 resets, run finished after 14 ms. (steps per millisecond=714 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 49 resets, run finished after 9 ms. (steps per millisecond=1111 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 45 resets, run finished after 12 ms. (steps per millisecond=833 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 49 resets, run finished after 12 ms. (steps per millisecond=833 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Probabilistic random walk after 10000001 steps, saw 1227571 distinct states, run finished after 14399 ms. (steps per millisecond=694 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
[2021-05-09 11:42:18] [INFO ] Flow matrix only has 259 transitions (discarded 1 similar events)
// Phase 1: matrix 259 rows 27 cols
[2021-05-09 11:42:18] [INFO ] Computed 0 place invariants in 6 ms
[2021-05-09 11:42:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Real]Absence check using state equation in 105 ms returned sat
[2021-05-09 11:42:18] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Nat]Absence check using state equation in 187 ms returned unsat
[2021-05-09 11:42:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2021-05-09 11:42:18] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Nat]Absence check using state equation in 75 ms returned unsat
[2021-05-09 11:42:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Real]Absence check using state equation in 54 ms returned sat
[2021-05-09 11:42:18] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:18] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Nat]Absence check using state equation in 211 ms returned unsat
[2021-05-09 11:42:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:18] [INFO ] [Real]Absence check using state equation in 33 ms returned unsat
[2021-05-09 11:42:18] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Real]Absence check using state equation in 48 ms returned sat
[2021-05-09 11:42:19] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Nat]Absence check using state equation in 126 ms returned unsat
[2021-05-09 11:42:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Real]Absence check using state equation in 60 ms returned sat
[2021-05-09 11:42:19] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Nat]Absence check using state equation in 126 ms returned unsat
[2021-05-09 11:42:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Real]Absence check using state equation in 42 ms returned sat
[2021-05-09 11:42:19] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Nat]Absence check using state equation in 134 ms returned unsat
[2021-05-09 11:42:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Real]Absence check using state equation in 40 ms returned sat
[2021-05-09 11:42:19] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Nat]Absence check using state equation in 129 ms returned unsat
[2021-05-09 11:42:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:19] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2021-05-09 11:42:19] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:19] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Nat]Absence check using state equation in 168 ms returned unsat
[2021-05-09 11:42:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Real]Absence check using state equation in 37 ms returned sat
[2021-05-09 11:42:20] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:20] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Nat]Absence check using state equation in 143 ms returned unsat
[2021-05-09 11:42:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Real]Absence check using state equation in 45 ms returned sat
[2021-05-09 11:42:20] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:20] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Nat]Absence check using state equation in 124 ms returned unsat
[2021-05-09 11:42:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Real]Absence check using state equation in 43 ms returned sat
[2021-05-09 11:42:20] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:20] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Nat]Absence check using state equation in 158 ms returned unsat
[2021-05-09 11:42:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Real]Absence check using state equation in 52 ms returned sat
[2021-05-09 11:42:20] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:20] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Nat]Absence check using state equation in 205 ms returned unsat
[2021-05-09 11:42:20] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:20] [INFO ] [Real]Absence check using state equation in 41 ms returned sat
[2021-05-09 11:42:20] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:20] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:21] [INFO ] [Nat]Absence check using state equation in 463 ms returned unsat
[2021-05-09 11:42:21] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:21] [INFO ] [Real]Absence check using state equation in 44 ms returned unsat
[2021-05-09 11:42:21] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:21] [INFO ] [Real]Absence check using state equation in 44 ms returned sat
[2021-05-09 11:42:21] [INFO ] Solution in real domain found non-integer solution.
[2021-05-09 11:42:21] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-09 11:42:21] [INFO ] [Nat]Absence check using state equation in 169 ms returned unsat
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-15 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-14 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-13 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-12 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-11 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-09 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-08 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-06 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-05 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-03 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-02 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-01 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA DNAwalker-PT-09ringLR-ReachabilityFireability-00 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
All properties solved without resorting to model-checking.

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

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-09ringLR"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="gold2020"
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 2-4028"
echo " Executing tool gold2020"
echo " Input is DNAwalker-PT-09ringLR, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r075-tall-162039097500300"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-09ringLR.tgz
mv DNAwalker-PT-09ringLR execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;