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 188K
-rw-r--r-- 1 mcc users 3.4K May 15 18:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K May 15 18:54 CTLFireability.txt
-rw-r--r-- 1 mcc users 15K 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 5.7K May 15 18:50 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 2.5K May 15 18:54 LTLCardinality.txt
-rw-r--r-- 1 mcc users 11K May 15 18:54 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 15 18:54 LTLFireability.txt
-rw-r--r-- 1 mcc users 8.4K May 15 18:54 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.9K May 15 18:54 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 20K May 15 18:54 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 115 May 15 18:54 ReachabilityDeadlock.txt
-rw-r--r-- 1 mcc users 353 May 15 18:54 ReachabilityDeadlock.xml
-rw-r--r-- 1 mcc users 3.8K May 15 18:54 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K May 15 18:54 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 15 18:54 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K 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 17 May 15 18:50 instance
-rw-r--r-- 1 mcc users 6 May 15 18:50 iscolored
-rw-r--r-- 1 mcc users 21K May 15 18:50 model.pnml
=====================================================================
Generated by BenchKit 2-3637
Executing tool irma4mcc-full
Input is GPPP-PT-C0001N0000000100, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r090-blw7-152650001200256
=====================================================================

--------------------
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 GPPP-PT-C0001N0000000100-CTLFireability-00
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-01
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-02
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-03
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-04
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-05
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-06
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-07
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-08
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-09
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-10
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-11
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-12
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-13
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-14
FORMULA_NAME GPPP-PT-C0001N0000000100-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1527066408879


BK_STOP 1527066422101

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

Prefix is 65b80f64.
Reading known information in /usr/share/mcc4mcc/65b80f64-known.json.
Reading learned information in /usr/share/mcc4mcc/65b80f64-learned.json.
Reading value translations in /usr/share/mcc4mcc/65b80f64-values.json.
Using directory /home/mcc/execution for input, as it contains a model.pnml file.
Using GPPP-PT-C0001N0000000100 as instance name.
Using GPPP as model name.
Using algorithm or tool voting-classifier.
Model characteristics are: {'Examination': 'CTLFireability', 'Place/Transition': True, 'Colored': False, 'Relative-Time': 1, 'Relative-Memory': 1, 'Ordinary': False, 'Simple Free Choice': False, 'Extended Free Choice': False, 'State Machine': False, 'Marked Graph': False, 'Connected': True, 'Strongly Connected': True, 'Source Place': False, 'Sink Place': False, 'Source Transition': False, 'Sink Transition': False, 'Loop Free': True, 'Conservative': False, 'Sub-Conservative': False, 'Nested Units': False, 'Safe': False, 'Deadlock': None, 'Reversible': None, 'Quasi Live': True, 'Live': None}.
/usr/local/lib/python3.6/dist-packages/sklearn/preprocessing/label.py:151: DeprecationWarning: The truth value of an empty array is ambiguous. Returning False, but in future this will result in an error. Use `array.size > 0` to check that an array is not empty.
if diff:
Known tools are: [{'Time': 26504, 'Memory': 8316.24, 'Tool': 'marcie'}, {'Time': 31280, 'Memory': 8316.38, 'Tool': 'marcie'}, {'Time': 65750, 'Memory': 961.65, 'Tool': 'itstools'}, {'Time': 65795, 'Memory': 955.2, 'Tool': 'itstools'}, {'Time': 105843, 'Memory': 191.18, 'Tool': 'gspn'}, {'Time': 111161, 'Memory': 218.91, 'Tool': 'gspn'}, {'Time': 669650, 'Memory': 11122.04, 'Tool': 'lola'}, {'Time': 695334, 'Memory': 10178.4, 'Tool': 'lola'}].
Learned tools are: [{'Tool': 'itstools'}].
Learned tool itstools is 2.4807576214910956x far from the best tool marcie.
CTLFireability marcie GPPP-PT-C0001N0000000100...
timeout --kill-after=10s --signal=SIGINT 1m for testing only
check for maximal unmarked siphon

Marcie rev. 8852M (built: crohr on 2017-05-03)
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: marcie --net-file=model.pnml --mcc-file=CTLFireability.xml --memory=6

parse successfull
net created successfully
ok

Net: GPPP_PT_C0001N0000000100
(NrP: 33 NrTr: 22 NrArc: 83)

check for constant places
ok
parse formulas
formulas created successfully
place and transition orderings generation:0m 0.000sec

check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok

net check time: 0m 0.000sec

init dd package: 0m 1.329sec

ptnet_zbdd.cc:255: Boundedness exception: net is not 1-bounded!

parse successfull
net created successfully

Net: GPPP_PT_C0001N0000000100
(NrP: 33 NrTr: 22 NrArc: 83)

parse formulas
formulas created successfully
place and transition orderings generation:0m 0.000sec

check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok

net check time: 0m 0.000sec

init dd package: 0m 3.763sec


initing FirstDep: 0m 0.000sec


iterations count:15790 (717), effective:3705 (168)

initing FirstDep: 0m 0.000sec


RS generation: 0m 0.089sec


-> reachability set: #nodes 1358 (1.4e+03) #states 145,476,966 (8)



starting MCC model checker
--------------------------


iterations count:359 (16), effective:85 (3)
checking: EG [EF [EX [IS_FIREABLE [generate]]]]
normalized: EG [E [true U EX [IS_FIREABLE [generate]]]]

.
EG iterations: 0
-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-02 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.062sec

checking: AG [EF [IS_FIREABLE [Phosphoglycerate_kinase]]]
normalized: ~ [E [true U ~ [E [true U IS_FIREABLE [Phosphoglycerate_kinase]]]]]


iterations count:213 (9), effective:56 (2)

iterations count:91 (4), effective:10 (0)

iterations count:44 (2), effective:15 (0)
-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-05 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.033sec

checking: EF [EG [AG [IS_FIREABLE [TIM_backward]]]]
normalized: E [true U EG [~ [E [true U ~ [IS_FIREABLE [TIM_backward]]]]]]

.
EG iterations: 1
-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-14 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.018sec

checking: AG [EX [IS_FIREABLE [Enolase]]]
normalized: ~ [E [true U ~ [EX [IS_FIREABLE [Enolase]]]]]

.-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-15 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.017sec

checking: AG [EF [~ [[IS_FIREABLE [Glutathione_oxidation] | IS_FIREABLE [Ru5P_isomerase]]]]]
normalized: ~ [E [true U ~ [E [true U ~ [[IS_FIREABLE [Glutathione_oxidation] | IS_FIREABLE [Ru5P_isomerase]]]]]]]


iterations count:225 (10), effective:101 (4)
-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-07 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.004sec

checking: ~ [~ [AG [~ [[IS_FIREABLE [remove] & IS_FIREABLE [generate]]]]]]
normalized: ~ [E [true U [IS_FIREABLE [remove] & IS_FIREABLE [generate]]]]

-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-12 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.000sec

checking: EX [EF [[[IS_FIREABLE [Ru5P_epimerase] & IS_FIREABLE [Glutathione_reductose]] & IS_FIREABLE [Transketolase2]]]]
normalized: EX [E [true U [IS_FIREABLE [Transketolase2] & [IS_FIREABLE [Ru5P_epimerase] & IS_FIREABLE [Glutathione_reductose]]]]]

.-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-01 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.000sec

checking: EX [EF [[[IS_FIREABLE [Phosphoclucose_isomerase] & IS_FIREABLE [Ru5P_isomerase]] | IS_FIREABLE [generate]]]]
normalized: EX [E [true U [IS_FIREABLE [generate] | [IS_FIREABLE [Phosphoclucose_isomerase] & IS_FIREABLE [Ru5P_isomerase]]]]]


iterations count:359 (16), effective:85 (3)
.-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-04 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.009sec

checking: [AG [[IS_FIREABLE [Ru5P_epimerase] | EF [IS_FIREABLE [Ru5P_epimerase]]]] & ~ [IS_FIREABLE [Phosphofructokinase]]]
normalized: [~ [IS_FIREABLE [Phosphofructokinase]] & ~ [E [true U ~ [[IS_FIREABLE [Ru5P_epimerase] | E [true U IS_FIREABLE [Ru5P_epimerase]]]]]]]


iterations count:331 (15), effective:78 (3)

iterations count:165 (7), effective:32 (1)
-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-08 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.045sec

checking: [EF [EX [[IS_FIREABLE [Pyruvate_kinase] & IS_FIREABLE [Transketolase1]]]] | ~ [~ [IS_FIREABLE [Hexokinase]]]]
normalized: [IS_FIREABLE [Hexokinase] | E [true U EX [[IS_FIREABLE [Pyruvate_kinase] & IS_FIREABLE [Transketolase1]]]]]

.-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-09 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.001sec

checking: ~ [E [[[IS_FIREABLE [Phosphoclucose_isomerase] | IS_FIREABLE [Ru5P_isomerase]] | ~ [IS_FIREABLE [TIM_forward]]] U IS_FIREABLE [Lactate_dehydrogenase]]]
normalized: ~ [E [[~ [IS_FIREABLE [TIM_forward]] | [IS_FIREABLE [Phosphoclucose_isomerase] | IS_FIREABLE [Ru5P_isomerase]]] U IS_FIREABLE [Lactate_dehydrogenase]]]


iterations count:22 (1), effective:0 (0)
-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-06 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.030sec

checking: EF [[AF [[IS_FIREABLE [Ru5P_isomerase] & IS_FIREABLE [Transketolase1]]] & EG [[IS_FIREABLE [Transketolase1] & IS_FIREABLE [Lactate_dehydrogenase]]]]]
normalized: E [true U [EG [[IS_FIREABLE [Transketolase1] & IS_FIREABLE [Lactate_dehydrogenase]]] & ~ [EG [~ [[IS_FIREABLE [Ru5P_isomerase] & IS_FIREABLE [Transketolase1]]]]]]]


EG iterations: 0
.
EG iterations: 1
-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-11 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.000sec

checking: ~ [A [[IS_FIREABLE [G6P_dehydrogenase] & [IS_FIREABLE [Transaldolase] & IS_FIREABLE [Phosphoglycerate_mutase]]] U EG [IS_FIREABLE [TIM_forward]]]]
normalized: ~ [[~ [EG [~ [EG [IS_FIREABLE [TIM_forward]]]]] & ~ [E [~ [EG [IS_FIREABLE [TIM_forward]]] U [~ [[IS_FIREABLE [G6P_dehydrogenase] & [IS_FIREABLE [Transaldolase] & IS_FIREABLE [Phosphoglycerate_mutase]]]] & ~ [EG [IS_FIREABLE [TIM_forward]]]]]]]]

....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 532
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 532

iterations count:22 (1), effective:0 (0)
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 532
..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
EG iterations: 574
-> the formula is TRUE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-13 TRUE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 3.491sec

checking: EF [[AG [[IS_FIREABLE [Hexokinase] & IS_FIREABLE [generate]]] & [[IS_FIREABLE [Ru5P_epimerase] | ~ [IS_FIREABLE [G6P_dehydrogenase]]] | ~ [[IS_FIREABLE [Phosphoglycerate_kinase] | IS_FIREABLE [Lactate_dehydrogenase]]]]]]
normalized: E [true U [[~ [[IS_FIREABLE [Phosphoglycerate_kinase] | IS_FIREABLE [Lactate_dehydrogenase]]] | [IS_FIREABLE [Ru5P_epimerase] | ~ [IS_FIREABLE [G6P_dehydrogenase]]]] & ~ [E [true U ~ [[IS_FIREABLE [Hexokinase] & IS_FIREABLE [generate]]]]]]]

-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-03 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.003sec

checking: EF [[[IS_FIREABLE [Ru5P_isomerase] & [~ [IS_FIREABLE [Phosphoglycerate_kinase]] & [IS_FIREABLE [Aldolase] & IS_FIREABLE [Pyruvate_kinase]]]] & [IS_FIREABLE [Ru5P_epimerase] & IS_FIREABLE [GAP_dehydrogenase]]]]
normalized: E [true U [[IS_FIREABLE [Ru5P_epimerase] & IS_FIREABLE [GAP_dehydrogenase]] & [IS_FIREABLE [Ru5P_isomerase] & [[IS_FIREABLE [Aldolase] & IS_FIREABLE [Pyruvate_kinase]] & ~ [IS_FIREABLE [Phosphoglycerate_kinase]]]]]]

-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-10 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.002sec

checking: E [~ [[[IS_FIREABLE [Enolase] | IS_FIREABLE [Hexokinase]] & IS_FIREABLE [remove]]] U [[[IS_FIREABLE [Glutathione_reductose] & IS_FIREABLE [G6P_dehydrogenase]] & [IS_FIREABLE [TIM_forward] | IS_FIREABLE [Phosphoclucose_isomerase]]] & [IS_FIREABLE [G6P_dehydrogenase] & [IS_FIREABLE [Aldolase] & IS_FIREABLE [generate]]]]]
normalized: E [~ [[IS_FIREABLE [remove] & [IS_FIREABLE [Enolase] | IS_FIREABLE [Hexokinase]]]] U [[IS_FIREABLE [G6P_dehydrogenase] & [IS_FIREABLE [Aldolase] & IS_FIREABLE [generate]]] & [[IS_FIREABLE [TIM_forward] | IS_FIREABLE [Phosphoclucose_isomerase]] & [IS_FIREABLE [Glutathione_reductose] & IS_FIREABLE [G6P_dehydrogenase]]]]]

-> the formula is FALSE

FORMULA GPPP-PT-C0001N0000000100-CTLFireability-00 FALSE TECHNIQUES SEQUENTIAL_PROCESSING DECISION_DIAGRAMS UNFOLDING_TO_PT

MC time: 0m 0.001sec

totally nodes used: 2302144 (2.3e+06)
number of garbage collections: 0
fire ops cache: hits/miss/sum: 7788667 3113513 10902180
used/not used/entry size/cache size: 4881407 62227457 16 1024MB
basic ops cache: hits/miss/sum: 1217798 402764 1620562
used/not used/entry size/cache size: 972616 15804600 12 192MB
unary ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 8 128MB
abstract ops cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 16777216 12 192MB
state nr cache: hits/miss/sum: 838 1358 2196
used/not used/entry size/cache size: 1358 8387250 32 256MB
max state cache: hits/miss/sum: 0 0 0
used/not used/entry size/cache size: 0 8388608 32 256MB
uniqueHash elements/entry size/size: 67108864 4 256MB
0 64859081
1 2221053
2 27858
3 514
4 67
5 58
6 29
7 14
8 6
9 5
>= 10 179

Total processing time: 0m10.466sec

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="GPPP-PT-C0001N0000000100"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="irma4mcc-full"
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/GPPP-PT-C0001N0000000100.tgz
mv GPPP-PT-C0001N0000000100 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 irma4mcc-full"
echo " Input is GPPP-PT-C0001N0000000100, 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 r090-blw7-152650001200256"
echo "====================================================================="
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 '' CTLFireability.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 ;