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.r318-tall-167873969100130.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 gold2022
Input is Philosophers-COL-050000, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r318-tall-167873969100130
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 2.7M
-rw-r--r-- 1 mcc users 5.8K Feb 25 13:05 CTLCardinality.txt
-rw-r--r-- 1 mcc users 57K Feb 25 13:05 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Feb 25 13:05 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K Feb 25 13:05 CTLFireability.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_pt
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:40 GenericPropertiesVerdict.xml
-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 3.8K Feb 25 16:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 2.3M Mar 5 18:23 model.pnml
-rw-r--r-- 1 mcc users 8.4K Feb 25 13:05 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 81K Feb 25 13:05 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Feb 25 13:05 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 56K Feb 25 13:05 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Feb 25 16:33 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 Philosophers-COL-050000-LTLFireability-00
FORMULA_NAME Philosophers-COL-050000-LTLFireability-01
FORMULA_NAME Philosophers-COL-050000-LTLFireability-02
FORMULA_NAME Philosophers-COL-050000-LTLFireability-03
FORMULA_NAME Philosophers-COL-050000-LTLFireability-04
FORMULA_NAME Philosophers-COL-050000-LTLFireability-05
FORMULA_NAME Philosophers-COL-050000-LTLFireability-06
FORMULA_NAME Philosophers-COL-050000-LTLFireability-07
FORMULA_NAME Philosophers-COL-050000-LTLFireability-08
FORMULA_NAME Philosophers-COL-050000-LTLFireability-09
FORMULA_NAME Philosophers-COL-050000-LTLFireability-10
FORMULA_NAME Philosophers-COL-050000-LTLFireability-11
FORMULA_NAME Philosophers-COL-050000-LTLFireability-12
FORMULA_NAME Philosophers-COL-050000-LTLFireability-13
FORMULA_NAME Philosophers-COL-050000-LTLFireability-14
FORMULA_NAME Philosophers-COL-050000-LTLFireability-15

=== Now, execution of the tool begins

BK_START 1678905008419

gold2022
Got BK_BIN_PATH=/home/mcc/BenchKit/bin/
---> gold2022 --- 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 LTLFireability *
*************************************
TEMPDIR=/home/mcc/BenchKit/bin/tmp
QF=/home/mcc/BenchKit/bin/tmp/tmp.uQWBhL6eHC
MF=/home/mcc/BenchKit/bin/tmp/tmp.bqzrEmykYL
Time left: 3590
---------------------------------------------------
Step -1: Stripping Colors
---------------------------------------------------
Verifying stripped models (16 in total)
/home/mcc/BenchKit/bin/verifypn -n -c -q 718 -ltl -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 ./LTLFireability.xml
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-15
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-14
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-13
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-12
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-11
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-10
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-09
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-08
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-07
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-06
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-05
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-04
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-03
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-02
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-01
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping Philosophers-COL-050000-LTLFireability-00
WARNING: Could not run CPN over-approximation on any queries, terminating.
Time left: 3589
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 in total)
Total simplification timout is 718 -- reduction timeout is 299
timeout 1017 /home/mcc/BenchKit/bin/verifypn -n -ltl -q 718 -l 29 -d 299 -z 4 -s OverApprox --binary-query-io 2 --write-simplified /home/mcc/BenchKit/bin/tmp/tmp.uQWBhL6eHC --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.bqzrEmykYL -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./LTLFireability.xml
FORMULA Philosophers-COL-050000-LTLFireability-02 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX UNFOLDING_TO_PT
Query index 2 was solved

Query is satisfied.

FORMULA Philosophers-COL-050000-LTLFireability-06 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX UNFOLDING_TO_PT
Query index 6 was solved

Query is satisfied.

FORMULA Philosophers-COL-050000-LTLFireability-12 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX UNFOLDING_TO_PT
Query index 12 was solved

Query is satisfied.
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Time left: 2778

---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (13 in total)
Each query is verified by 4 parallel strategies for 299 seconds
------------------- QUERY 1 ----------------------
No solution found
Spent 0.339045 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@178.85,1122068@@@
Spent 0.36893 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@184.84,1122908@@@
Spent 0.241142 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@186.53,1121840@@@
Spent 0.24305 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@190.55,1121328@@@


Time left: 2587
------------------- QUERY 2 ----------------------
No solution found
Spent 0.296822 on verification
Spent 0.319174 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@174.59,1122292@@@
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@174.60,1122016@@@
Spent 0.420286 on verification
Spent 0.46558 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@179.95,1122776@@@
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@180.09,1122796@@@


Time left: 2407
------------------- QUERY 3 ----------------------
No solution found
Spent 0.254751 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@174.44,1122528@@@
Spent 0.522489 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@175.09,1123272@@@
Spent 0.618181 on verification
Spent 0.631675 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@177.12,1123528@@@
Command exited with non-zero status 255
@@@177.14,1122080@@@


Time left: 2230
------------------- QUERY 4 ----------------------
No solution found
Spent 0.315932 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@173.64,1121888@@@
Spent 0.298025 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@185.22,1122412@@@
Spent 0.394601 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@207.67,1123704@@@
Spent 0.331462 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@209.65,1122780@@@


Time left: 2020
------------------- QUERY 5 ----------------------
No solution found
Spent 0.54981 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@181.48,1123024@@@
Spent 0.503074 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@188.34,1122260@@@
Spent 0.398754 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@206.22,1123116@@@
Spent 0.407196 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@207.91,1122496@@@


Time left: 1811
------------------- QUERY 6 ----------------------
No solution found
Spent 0.119684 on verification
Spent 0.128685 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@169.62,1122212@@@
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@169.75,1122128@@@
Spent 0.026555 on verification
Spent 0.047232 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@192.19,1122864@@@
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@192.20,1123520@@@


Time left: 1619
------------------- QUERY 7 ----------------------
No solution found
Spent 0.240486 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@171.98,1122516@@@
Spent 0.18592 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@175.45,1122844@@@
Spent 0.15552 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@186.96,1122644@@@
Spent 0.209695 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@193.12,1123140@@@


Time left: 1426
------------------- QUERY 8 ----------------------
No solution found
Spent 0.92625 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@170.66,1123668@@@
Spent 0.498645 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@191.23,1121764@@@
Spent 0.757864 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@209.95,1123520@@@
Spent 0.862068 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@216.61,1122548@@@


Time left: 1209
------------------- QUERY 9 ----------------------
No solution found
Spent 0.437501 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@167.01,1122512@@@
Spent 1.26406 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@168.16,1121460@@@
Spent 0.814997 on verification
Spent 0.932471 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@168.78,1122560@@@
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@168.93,1122528@@@


Time left: 1040
------------------- QUERY 10 ----------------------
No solution found
Spent 0.585874 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@175.03,1123016@@@
Spent 2.68178 on verification
Spent 4.5929 on verification
Spent 2.88242 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@179.26,1123732@@@
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@179.27,1122996@@@
Command exited with non-zero status 255
@@@179.27,1122496@@@


Time left: 860
------------------- QUERY 11 ----------------------
No solution found
Spent 1.71192 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@174.47,1122260@@@
Spent 0.669546 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@176.05,1121840@@@
Spent 1.98066 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@177.14,1122776@@@
Spent 6.00401 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@179.69,1123380@@@


Time left: 680
------------------- QUERY 12 ----------------------
No solution found
Spent 44.5404 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@214.93,1122480@@@


Time left: 379
------------------- QUERY 13 ----------------------
No solution found
Spent 1.96809 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@170.03,1122116@@@
Spent 4.26386 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@184.82,1123720@@@
Spent 4.45079 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@196.85,1123900@@@
Spent 9.93577 on verification
ERROR: Marking could not be encoded into less than 2^16 bytes, current limit of PTries
Command exited with non-zero status 255
@@@211.67,1122136@@@


Time left: 167
---------------------------------------------------
Step 2: Sequential processing
---------------------------------------------------
Remaining 13 queries are verified sequentially.
Each query is verified for a dynamic timeout (at least 598 seconds)
Time left: 167
------------------- QUERY 1 ----------------------
Time left: 167
---------------------------------------------------
Step 4: Random Parallel processing
---------------------------------------------------
Doing random parallel verification of individual queries (13 in total)
Each query is verified by 4 parallel strategies for 12 seconds
------------------- QUERY 1 ----------------------
No solution found



Time left: 153
------------------- QUERY 2 ----------------------
No solution found



Time left: 137
------------------- QUERY 3 ----------------------
No solution found



Time left: 123
------------------- QUERY 4 ----------------------
No solution found



Time left: 108
------------------- QUERY 5 ----------------------
No solution found



Time left: 94
------------------- QUERY 6 ----------------------
No solution found



Time left: 79
------------------- QUERY 7 ----------------------
No solution found



Time left: 64
------------------- QUERY 8 ----------------------
No solution found



Time left: 50
------------------- QUERY 9 ----------------------
No solution found



Time left: 35
------------------- QUERY 10 ----------------------
No solution found



Time left: 21
------------------- QUERY 11 ----------------------
No solution found



Time left: 7
------------------- QUERY 12 ----------------------
No solution found



Time left: -2
Out of time, terminating!
terminated-with-cleanup

BK_STOP 1678908600252

--------------------
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="Philosophers-COL-050000"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="gold2022"
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 gold2022"
echo " Input is Philosophers-COL-050000, 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 r318-tall-167873969100130"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-COL-050000.tgz
mv Philosophers-COL-050000 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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;