About the Execution of Tapaal for ServersAndClients-PT-100080
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
415.256 | 17419.00 | 54201.00 | 7.50 | TFFFTFFTFFFFFTTT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fko/mcc2022-input.r201-oct2-165281596300474.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool tapaal
Input is ServersAndClients-PT-100080, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r201-oct2-165281596300474
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 5.1M
-rw-r--r-- 1 mcc users 8.1K Apr 29 17:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K Apr 29 17:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Apr 29 17:13 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K Apr 29 17:13 CTLFireability.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 7 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 3.9K May 9 08:45 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K May 9 08:45 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K May 9 08:45 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 9 08:45 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.9M May 10 09:34 model.pnml
-rw-r--r-- 1 mcc users 1.8K May 9 08:45 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 9 08:45 UpperBounds.xml
--------------------
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 ServersAndClients-PT-100080-CTLFireability-00
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-01
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-02
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-03
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-04
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-05
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-06
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-07
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-08
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-09
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-10
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-11
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-12
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-13
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-14
FORMULA_NAME ServersAndClients-PT-100080-CTLFireability-15
=== Now, execution of the tool begins
BK_START 1652850112124
tapaal
Got BK_BIN_PATH=/home/mcc/BenchKit/bin/
---> tapaal --- TAPAAL v5
Setting MODEL_PATH=.
Setting VERIFYPN=/home/mcc/BenchKit/bin/verifypn
Got BK_TIME_CONFINEMENT=3600
Setting TEMPDIR=/home/mcc/BenchKit/bin/tmp
Got BK_MEMORY_CONFINEMENT=16384
Limiting to 16265216 kB
Total timeout: 3590
Time left: 3590
*************************************
* TAPAAL verifying CTLFireability *
*************************************
TEMPDIR=/home/mcc/BenchKit/bin/tmp
QF=/home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk
MF=/home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl
Time left: 3590
---------------------------------------------------
Step -1: Stripping Colors
---------------------------------------------------
Verifying stripped models (16 in total)
/home/mcc/BenchKit/bin/verifypn -n -c -q 718 -l 29 -d 299 -z 4 -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./CTLFireability.xml
CPN OverApproximation is only usable on colored models
Time left: 3590
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 in total)
Total simplification timout is 718 -- reduction timeout is 299
timeout 3590 /home/mcc/BenchKit/bin/verifypn -n -q 718 -l 29 -d 299 -z 4 -s OverApprox --binary-query-io 2 --write-simplified /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./CTLFireability.xml
Time left: 3587
---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (16 in total)
Each query is verified by 4 parallel strategies for 299 seconds
------------------- QUERY 1 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.051606 on verification
Query index 0 was solved
Query is satisfied.
Spent 0.050792 on verification
@@@0.38,94380@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 1 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-15 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3586
------------------- QUERY 2 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.049286 on verification
Query index 0 was solved
Query is satisfied.
Spent 0.045483 on verification
Query index 0 was solved
Query is satisfied.
Spent 0.046058 on verification
@@@0.36,94300@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 2 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-07 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3585
------------------- QUERY 3 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.041144 on verification
Query index 0 was solved
Query is NOT satisfied.
Spent 0.041042 on verification
@@@0.37,94248@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 3 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3585
------------------- QUERY 4 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.097118 on verification
@@@0.60,94200@@@
Query index 0 was solved
Query is NOT satisfied.
Spent 0.100584 on verification
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 4 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-02 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3584
------------------- QUERY 5 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.048888 on verification
Query index 0 was solved
Query is NOT satisfied.
Spent 0.052416 on verification
Query index 0 was solved
Query is NOT satisfied.
Spent 0.050162 on verification
@@@0.38,94384@@@
Query index 0 was solved
Query is NOT satisfied.
Spent 0.052063 on verification
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 5 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-08 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3583
------------------- QUERY 6 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.064795 on verification
@@@0.43,94128@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 6 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-09 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3583
------------------- QUERY 7 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.050903 on verification
@@@0.38,94324@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 7 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-12 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3582
------------------- QUERY 8 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.065727 on verification
Query index 0 was solved
Query is NOT satisfied.
Spent 0.062917 on verification
@@@0.41,94248@@@
@@@0.39,94260@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 8 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-01 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3581
------------------- QUERY 9 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.178458 on verification
@@@0.68,94172@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 9 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-05 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3580
------------------- QUERY 10 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.054753 on verification
@@@0.51,94344@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 10 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-04 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3580
------------------- QUERY 11 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.059202 on verification
@@@0.51,94252@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 11 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3579
------------------- QUERY 12 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.088824 on verification
@@@0.57,94256@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 12 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-00 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3578
------------------- QUERY 13 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.063023 on verification
Query index 0 was solved
Query is satisfied.
Spent 0.063423 on verification
@@@0.52,94408@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 13 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-13 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3577
------------------- QUERY 14 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.804674 on verification
@@@1.30,94188@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 14 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-14 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3576
------------------- QUERY 15 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.72271 on verification
@@@1.16,94388@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 15 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3575
------------------- QUERY 16 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.743022 on verification
@@@1.37,94364@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.pVVKVrdOSl /home/mcc/BenchKit/bin/tmp/tmp.1ixS4jVndk --binary-query-io 1 -x 16 -n
FORMULA ServersAndClients-PT-100080-CTLFireability-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3573
All queries are solved
Time left: 3573
terminated-with-cleanup
BK_STOP 1652850129543
--------------------
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="ServersAndClients-PT-100080"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="tapaal"
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 tapaal"
echo " Input is ServersAndClients-PT-100080, 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 r201-oct2-165281596300474"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/ServersAndClients-PT-100080.tgz
mv ServersAndClients-PT-100080 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "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 '
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;