About the Execution of Tapaal(SEQ) for Ring-PT-none
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
14246.420 | 704620.00 | 704009.00 | 30.90 | TFFTF?TTTTFTFFTT | 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)
...............
=====================================================================
Generated by BenchKit 2-2979
Executing tool tapaalSEQ
Input is Ring-PT-none, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 1
Run identifier is r114kn-smll-146373294100009
=====================================================================
--------------------
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 Ring-PT-none-ReachabilityFireability-0
FORMULA_NAME Ring-PT-none-ReachabilityFireability-1
FORMULA_NAME Ring-PT-none-ReachabilityFireability-10
FORMULA_NAME Ring-PT-none-ReachabilityFireability-11
FORMULA_NAME Ring-PT-none-ReachabilityFireability-12
FORMULA_NAME Ring-PT-none-ReachabilityFireability-13
FORMULA_NAME Ring-PT-none-ReachabilityFireability-14
FORMULA_NAME Ring-PT-none-ReachabilityFireability-15
FORMULA_NAME Ring-PT-none-ReachabilityFireability-2
FORMULA_NAME Ring-PT-none-ReachabilityFireability-3
FORMULA_NAME Ring-PT-none-ReachabilityFireability-4
FORMULA_NAME Ring-PT-none-ReachabilityFireability-5
FORMULA_NAME Ring-PT-none-ReachabilityFireability-6
FORMULA_NAME Ring-PT-none-ReachabilityFireability-7
FORMULA_NAME Ring-PT-none-ReachabilityFireability-8
FORMULA_NAME Ring-PT-none-ReachabilityFireability-9
=== Now, execution of the tool begins
BK_START 1464420809920
---> tapaalSEQ --- TAPAAL Sequential
*******************************************************
* TAPAAL Sequential verifying ReachabilityFireability *
*******************************************************
timeout 5 verifypn -n -s OverApprox -x 1 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-0: EF ( (true and "P120" >= 1 and "P87" >= 1) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 2 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-1: not EF not ( (not(not(not((true and "P5" >= 1 and "P63" >= 1 and "P8" >= 1)))) and ((true and "P116" >= 1 and "P70" >= 1 and "P78" >= 1) or (((true and "P12" >= 1 and "P13" >= 1 and "P21" >= 1) and (true and "P10" >= 1 and "P3" >= 1 and "P4" >= 1)) or not((true and "P5" >= 1 and "P63" >= 1 and "P8" >= 1))))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 3 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-2: EF ( ((true and "P117" >= 1 and "P123" >= 1 and "P69" >= 1) and ((true and "P124" >= 1 and "P18" >= 1) and (((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) or (true and "P37" >= 1 and "P39" >= 1)) and (true and "P46" >= 1 and "P50" >= 1 and "P53" >= 1)))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 4 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-3: EF ( not(not((((true and "P39" >= 1 and "P66" >= 1) and (true and "P20" >= 1 and "P42" >= 1)) and (true and "P91" >= 1 and "P94" >= 1)))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 5 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-4: not EF not ( (not((((true and "P57" >= 1 and "P88" >= 1) or (true and "P32" >= 1)) or (true and "P51" >= 1 and "P73" >= 1))) or not(not((true and "P103" >= 1 and "P61" >= 1)))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 6 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-5: EF ( (true and "P51" >= 1 and "P73" >= 1) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 7 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-6: not EF not ( (not(not(not((true and "P28" >= 1 and "P29" >= 1 and "P40" >= 1)))) and not(not(not((true and "P58" >= 1 and "P81" >= 1))))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 8 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-7: not EF not ( ((true and "P25" >= 1 and "P79" >= 1 and "P86" >= 1) or not((true and "P124" >= 1 and "P18" >= 1))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 9 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-8: EF ( (true and "P56" >= 1 and "P72" >= 1) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 10 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-9: EF ( (not((((true and "P56" >= 1 and "P72" >= 1) and (true and "P110" >= 1 and "P57" >= 1)) and not((true and "P54" >= 1)))) and (true and "P51" >= 1 and "P73" >= 1)) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 11 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-10: not EF not ( not((true and "P58" >= 1 and "P81" >= 1)) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 12 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-11: EF ( (((not((true and "P125" >= 1 and "P52" >= 1)) or (true and "P54" >= 1)) and (true and "P115" >= 1 and "P84" >= 1)) and ((not((true and "P80" >= 1 and "P82" >= 1 and "P86" >= 1)) and ((true and "P23" >= 1 and "P98" >= 1) and (true and "P112" >= 1 and "P59" >= 1))) and not(((true and "P112" >= 1 and "P59" >= 1) and (true and "P22" >= 1 and "P24" >= 1 and "P43" >= 1))))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 13 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-12: not EF not ( ((((true and "P39" >= 1 and "P66" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) or (true and "P12" >= 1 and "P13" >= 1 and "P21" >= 1))) and (true and "P109" >= 1 and "P20" >= 1)) or not((not((true and "P31" >= 1 and "P80" >= 1 and "P83" >= 1)) and (true and "P120" >= 1 and "P87" >= 1)))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 14 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-13: EF ( ((true and "P11" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) and (true and "P56" >= 1 and "P71" >= 1))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 15 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-14: EF ( not(not((((true and "P131" >= 1 and "P138" >= 1) or (true and "P133" >= 1 and "P137" >= 1)) and ((true and "P27" >= 1 and "P58" >= 1) or (true and "P125" >= 1 and "P52" >= 1))))) )
Unable to decide if query is satisfied.
timeout 5 verifypn -n -s OverApprox -x 16 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-15: EF ( (not((((true and "P105" >= 1 and "P60" >= 1) and (true and "P136" >= 1 and "P17" >= 1 and "P20" >= 1)) and not((true and "P34" >= 1)))) and ((((true and "P111" >= 1 and "P59" >= 1) or (true and "P65" >= 1 and "P67" >= 1)) and (true and "P106" >= 1 and "P107" >= 1)) and not(not((true and "P54" >= 1))))) )
Unable to decide if query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 1 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-0: EF ( (true and "P120" >= 1 and "P87" >= 1) )
FORMULA Ring-PT-none-ReachabilityFireability-0 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 2 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-1: not EF not ( (not(not(not((true and "P5" >= 1 and "P63" >= 1 and "P8" >= 1)))) and ((true and "P116" >= 1 and "P70" >= 1 and "P78" >= 1) or (((true and "P12" >= 1 and "P13" >= 1 and "P21" >= 1) and (true and "P10" >= 1 and "P3" >= 1 and "P4" >= 1)) or not((true and "P5" >= 1 and "P63" >= 1 and "P8" >= 1))))) )
timeout 40 verifypn -n -d -r 1 -x 3 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-2: EF ( ((true and "P117" >= 1 and "P123" >= 1 and "P69" >= 1) and ((true and "P124" >= 1 and "P18" >= 1) and (((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) or (true and "P37" >= 1 and "P39" >= 1)) and (true and "P46" >= 1 and "P50" >= 1 and "P53" >= 1)))) )
FORMULA Ring-PT-none-ReachabilityFireability-2 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 4 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-3: EF ( not(not((((true and "P39" >= 1 and "P66" >= 1) and (true and "P20" >= 1 and "P42" >= 1)) and (true and "P91" >= 1 and "P94" >= 1)))) )
FORMULA Ring-PT-none-ReachabilityFireability-3 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 5 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-4: not EF not ( (not((((true and "P57" >= 1 and "P88" >= 1) or (true and "P32" >= 1)) or (true and "P51" >= 1 and "P73" >= 1))) or not(not((true and "P103" >= 1 and "P61" >= 1)))) )
FORMULA Ring-PT-none-ReachabilityFireability-4 FALSE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is NOT satisfied.
timeout 40 verifypn -n -d -r 1 -x 6 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-5: EF ( (true and "P51" >= 1 and "P73" >= 1) )
FORMULA Ring-PT-none-ReachabilityFireability-5 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 7 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-6: not EF not ( (not(not(not((true and "P28" >= 1 and "P29" >= 1 and "P40" >= 1)))) and not(not(not((true and "P58" >= 1 and "P81" >= 1))))) )
FORMULA Ring-PT-none-ReachabilityFireability-6 FALSE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is NOT satisfied.
timeout 40 verifypn -n -d -r 1 -x 8 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-7: not EF not ( ((true and "P25" >= 1 and "P79" >= 1 and "P86" >= 1) or not((true and "P124" >= 1 and "P18" >= 1))) )
FORMULA Ring-PT-none-ReachabilityFireability-7 FALSE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is NOT satisfied.
timeout 40 verifypn -n -d -r 1 -x 9 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-8: EF ( (true and "P56" >= 1 and "P72" >= 1) )
timeout 40 verifypn -n -d -r 1 -x 10 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-9: EF ( (not((((true and "P56" >= 1 and "P72" >= 1) and (true and "P110" >= 1 and "P57" >= 1)) and not((true and "P54" >= 1)))) and (true and "P51" >= 1 and "P73" >= 1)) )
FORMULA Ring-PT-none-ReachabilityFireability-9 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 11 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-10: not EF not ( not((true and "P58" >= 1 and "P81" >= 1)) )
FORMULA Ring-PT-none-ReachabilityFireability-10 FALSE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is NOT satisfied.
timeout 40 verifypn -n -d -r 1 -x 12 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-11: EF ( (((not((true and "P125" >= 1 and "P52" >= 1)) or (true and "P54" >= 1)) and (true and "P115" >= 1 and "P84" >= 1)) and ((not((true and "P80" >= 1 and "P82" >= 1 and "P86" >= 1)) and ((true and "P23" >= 1 and "P98" >= 1) and (true and "P112" >= 1 and "P59" >= 1))) and not(((true and "P112" >= 1 and "P59" >= 1) and (true and "P22" >= 1 and "P24" >= 1 and "P43" >= 1))))) )
timeout 40 verifypn -n -d -r 1 -x 13 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-12: not EF not ( ((((true and "P39" >= 1 and "P66" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) or (true and "P12" >= 1 and "P13" >= 1 and "P21" >= 1))) and (true and "P109" >= 1 and "P20" >= 1)) or not((not((true and "P31" >= 1 and "P80" >= 1 and "P83" >= 1)) and (true and "P120" >= 1 and "P87" >= 1)))) )
FORMULA Ring-PT-none-ReachabilityFireability-12 FALSE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is NOT satisfied.
timeout 40 verifypn -n -d -r 1 -x 14 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-13: EF ( ((true and "P11" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) and (true and "P56" >= 1 and "P71" >= 1))) )
timeout 40 verifypn -n -d -r 1 -x 15 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-14: EF ( not(not((((true and "P131" >= 1 and "P138" >= 1) or (true and "P133" >= 1 and "P137" >= 1)) and ((true and "P27" >= 1 and "P58" >= 1) or (true and "P125" >= 1 and "P52" >= 1))))) )
FORMULA Ring-PT-none-ReachabilityFireability-14 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 40 verifypn -n -d -r 1 -x 16 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-15: EF ( (not((((true and "P105" >= 1 and "P60" >= 1) and (true and "P136" >= 1 and "P17" >= 1 and "P20" >= 1)) and not((true and "P34" >= 1)))) and ((((true and "P111" >= 1 and "P59" >= 1) or (true and "P65" >= 1 and "P67" >= 1)) and (true and "P106" >= 1 and "P107" >= 1)) and not(not((true and "P54" >= 1))))) )
FORMULA Ring-PT-none-ReachabilityFireability-15 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 30 verifypn -n -d -r 1 -s BFS -x 2 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-1: not EF not ( (not(not(not((true and "P5" >= 1 and "P63" >= 1 and "P8" >= 1)))) and ((true and "P116" >= 1 and "P70" >= 1 and "P78" >= 1) or (((true and "P12" >= 1 and "P13" >= 1 and "P21" >= 1) and (true and "P10" >= 1 and "P3" >= 1 and "P4" >= 1)) or not((true and "P5" >= 1 and "P63" >= 1 and "P8" >= 1))))) )
FORMULA Ring-PT-none-ReachabilityFireability-1 FALSE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is NOT satisfied.
timeout 30 verifypn -n -d -r 1 -s BFS -x 9 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-8: EF ( (true and "P56" >= 1 and "P72" >= 1) )
FORMULA Ring-PT-none-ReachabilityFireability-8 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 30 verifypn -n -d -r 1 -s BFS -x 12 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-11: EF ( (((not((true and "P125" >= 1 and "P52" >= 1)) or (true and "P54" >= 1)) and (true and "P115" >= 1 and "P84" >= 1)) and ((not((true and "P80" >= 1 and "P82" >= 1 and "P86" >= 1)) and ((true and "P23" >= 1 and "P98" >= 1) and (true and "P112" >= 1 and "P59" >= 1))) and not(((true and "P112" >= 1 and "P59" >= 1) and (true and "P22" >= 1 and "P24" >= 1 and "P43" >= 1))))) )
FORMULA Ring-PT-none-ReachabilityFireability-11 TRUE TECHNIQUES SEQUENTIAL_PROCESSING EXPLICIT STRUCTURAL_REDUCTION
Query is satisfied.
timeout 30 verifypn -n -d -r 1 -s BFS -x 14 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-13: EF ( ((true and "P11" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) and (true and "P56" >= 1 and "P71" >= 1))) )
timeout 300 verifypn -n -d -r 1 -s DFS -x 14 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-13: EF ( ((true and "P11" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) and (true and "P56" >= 1 and "P71" >= 1))) )
timeout 7200 verifypn -n -d -r 1 -s DFS -x 14 model.pnml ReachabilityFireability.xml
Ring-PT-none-ReachabilityFireability-13: EF ( ((true and "P11" >= 1) and ((true and "P26" >= 1 and "P31" >= 1 and "P79" >= 1) and (true and "P56" >= 1 and "P71" >= 1))) )
BK_STOP 1464421514540
--------------------
content from stderr:
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
/home/mcc/BenchKit/tapaal.sh: line 42: 432 Aborted timeout $1 $VERIFYPN $3 "-x" $QUERY model.pnml $4
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
/home/mcc/BenchKit/tapaal.sh: line 42: 436 Aborted timeout $1 $VERIFYPN $3 "-x" $QUERY model.pnml $4
Sequence of Actions to be Executed by the VM
This is useful if one wants to reexecute the tool in the VM from the submitted image disk.
set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="Ring-PT-none"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="tapaalSEQ"
export BK_RESULT_DIR="/root/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
# this is specific to your benchmark or test
export BIN_DIR="$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/Ring-PT-none.tgz
mv Ring-PT-none execution
# this is for BenchKit: explicit launching of the test
cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-2979"
echo " Executing tool tapaalSEQ"
echo " Input is Ring-PT-none, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 1"
echo " Run identifier is r114kn-smll-146373294100009"
echo "====================================================================="
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 '
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 ;