fond
Model Checking Contest 2018
8th edition, Bratislava, Slovakia, June 26, 2018
Execution of r084-blw3-152649951600292
Last Updated
June 26, 2018

About the Execution of Tapaal for Diffusion2D-PT-D50N010

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
233.280 37161.00 101758.00 26.90 TTTTTFFTTTTFTTTF normal

Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
.................
/home/mcc/execution
total 7.5M
-rw-r--r-- 1 mcc users 4.2K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 21K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.6K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 22K May 15 18:54 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K May 15 18:50 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.8K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.0K May 26 09:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 14K May 26 09:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 26 09:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 11K May 26 09:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 17K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 113 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 351 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.0K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 14K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 15 18:54 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 15 18:50 equiv_col
-rw-r--r-- 1 mcc users 8 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 7.3M May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool tapaal
Input is Diffusion2D-PT-D50N010, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r084-blw3-152649951600292
=====================================================================


--------------------
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 Diffusion2D-PT-D50N010-ReachabilityCardinality-00
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-01
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-02
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-03
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-04
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-05
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-06
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-07
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-08
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-09
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-10
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-11
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-12
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-13
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-14
FORMULA_NAME Diffusion2D-PT-D50N010-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1527766560029

tapaal
---> tapaal --- TAPAAL
Total timeout: 3590
Time left: 3590

**********************************************
* TAPAAL verifying ReachabilityCardinality *
**********************************************
/home/mcc/tmp
/home/mcc/tmp/tmp.tbyxp3jRL7
/home/mcc/tmp/tmp.PWa7JwAf52
Time left: 3590
---------------------------------------------------
Step -1: Stripping Colors
---------------------------------------------------
Verifying stripped models (16 in total)

Time left: 3590
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 in total)
Total simplification timout is 718 -- reduction timeout is 299
/home/mcc/BenchKit/bin/verifypn -n -q 718 -l 29 -d 299 -z 4 -s OverApprox --write-simplified /home/mcc/tmp/tmp.tbyxp3jRL7 --write-reduced /home/mcc/tmp/tmp.PWa7JwAf52 -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./ReachabilityCardinality.xml

Time left: 3556

---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (16 in total)
Each query is verified by 4 parallel strategies for 256 seconds
------------------- QUERY 1 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5068@@@


Query index 0 was solved

Query is satisfied.

@@@0.00,5040@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 1 -n
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 1 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-00 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3556
------------------- QUERY 2 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5056@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 2 -n


Query index 0 was solved

Query is satisfied.

@@@0.00,5160@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 2 -n


Query index 0 was solved

Query is satisfied.

@@@0.00,5168@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 2 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-02 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3556
------------------- QUERY 3 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5128@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 3 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-03 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3555
------------------- QUERY 4 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is satisfied.

@@@0.00,5048@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 4 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-04 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3555
------------------- QUERY 5 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is satisfied.

@@@0.00,5068@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 5 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-07 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3555
------------------- QUERY 6 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is satisfied.

@@@0.00,5156@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 6 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-09 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3555
------------------- QUERY 7 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,4964@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 7 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-14 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3555
------------------- QUERY 8 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is NOT satisfied.

@@@0.00,4980@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 8 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-05 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3555
------------------- QUERY 9 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is NOT satisfied.

@@@0.02,5164@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 9 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3554
------------------- QUERY 10 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is satisfied.

@@@0.00,5164@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 10 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-13 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3554
------------------- QUERY 11 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5060@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 11 -n


Query index 0 was solved

Query is satisfied.

@@@0.00,5172@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 11 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-12 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3554
------------------- QUERY 12 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5136@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 12 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-10 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3554
------------------- QUERY 13 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is NOT satisfied.

@@@0.00,4984@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 13 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-15 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3554
------------------- QUERY 14 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5136@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 14 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-08 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3554
------------------- QUERY 15 ----------------------
Solution found by parallel processing (step 1)



Query index 0 was solved

Query is NOT satisfied.

@@@0.00,5072@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 15 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-06 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3553
------------------- QUERY 16 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved

Query is satisfied.

@@@0.00,5076@@@
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/tmp/tmp.PWa7JwAf52 /home/mcc/tmp/tmp.tbyxp3jRL7 --binary-query-io 1 -x 16 -n

FORMULA Diffusion2D-PT-D50N010-ReachabilityCardinality-01 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3553
All queries are solved
Time left: 3553

BK_STOP 1527766597190

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

CPN OverApproximation is only usable on colored models

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="Diffusion2D-PT-D50N010"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="tapaal"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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

tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D50N010.tgz
mv Diffusion2D-PT-D50N010 execution
cd execution
pwd
ls -lh

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-3637"
echo " Executing tool tapaal"
echo " Input is Diffusion2D-PT-D50N010, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r084-blw3-152649951600292"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
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 ;