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 2-3253
Executing tool ltsmin
Input is BART-PT-030, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r167-ebro-149580917700113
=====================================================================

--------------------
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 BART-COL-030-LTLCardinality-0
FORMULA_NAME BART-COL-030-LTLCardinality-1
FORMULA_NAME BART-COL-030-LTLCardinality-10
FORMULA_NAME BART-COL-030-LTLCardinality-11
FORMULA_NAME BART-COL-030-LTLCardinality-12
FORMULA_NAME BART-COL-030-LTLCardinality-13
FORMULA_NAME BART-COL-030-LTLCardinality-14
FORMULA_NAME BART-COL-030-LTLCardinality-15
FORMULA_NAME BART-COL-030-LTLCardinality-2
FORMULA_NAME BART-COL-030-LTLCardinality-3
FORMULA_NAME BART-COL-030-LTLCardinality-4
FORMULA_NAME BART-COL-030-LTLCardinality-5
FORMULA_NAME BART-COL-030-LTLCardinality-6
FORMULA_NAME BART-COL-030-LTLCardinality-7
FORMULA_NAME BART-COL-030-LTLCardinality-8
FORMULA_NAME BART-COL-030-LTLCardinality-9

=== Now, execution of the tool begins

BK_START 1495838152954

FORMULA BART-COL-030-LTLCardinality-0 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-1 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-2 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-3 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-4 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-5 TRUE TECHNIQUES EXPLICIT PARALLEL_PROCESSING USE_NUPN
FORMULA BART-COL-030-LTLCardinality-6 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-7 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-8 TRUE TECHNIQUES EXPLICIT PARALLEL_PROCESSING USE_NUPN
FORMULA BART-COL-030-LTLCardinality-9 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-10 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-11 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-12 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-13 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-14 CANNOT_COMPUTE
FORMULA BART-COL-030-LTLCardinality-15 TRUE TECHNIQUES EXPLICIT PARALLEL_PROCESSING USE_NUPN

BK_STOP 1495841141131

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

mcc2017
ltl formula name BART-COL-030-LTLCardinality-0
ltl formula formula --ltl=/tmp/ltl_0_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.820 real 5.860 user 4.700 sys
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/ltl_0_
ltl formula name BART-COL-030-LTLCardinality-1
ltl formula formula --ltl=/tmp/ltl_1_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.530 real 4.260 user 5.300 sys
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/ltl_1_
pnml2lts-mc( 1/ 4): buchi has 3 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4): There are 7198 state labels and 1 edge labels
pnml2lts-mc( 0/ 4): State length is 7203, there are 34234 groups
pnml2lts-mc( 0/ 4): Running ufscc using 4 cores
pnml2lts-mc( 0/ 4): Using a tree table with 2^30 elements
pnml2lts-mc( 0/ 4): Successor permutation: dynamic
pnml2lts-mc( 0/ 4): Global bits: 0, count bits: 0, local bits: 0
ltl formula name BART-COL-030-LTLCardinality-2
ltl formula formula --ltl=/tmp/ltl_2_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 1.800 real 3.820 user 3.090 sys
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/ltl_2_
ltl formula name BART-COL-030-LTLCardinality-3
ltl formula formula --ltl=/tmp/ltl_3_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.130 real 4.460 user 3.770 sys
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/ltl_3_
ltl formula name BART-COL-030-LTLCardinality-4
ltl formula formula --ltl=/tmp/ltl_4_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.200 real 4.330 user 4.290 sys
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/ltl_4_
ltl formula name BART-COL-030-LTLCardinality-5
ltl formula formula --ltl=/tmp/ltl_5_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.240 real 4.330 user 4.380 sys
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/ltl_5_
pnml2lts-mc( 1/ 4): buchi has 2 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4): There are 7198 state labels and 1 edge labels
pnml2lts-mc( 0/ 4): State length is 7203, there are 34232 groups
pnml2lts-mc( 0/ 4): Running ufscc using 4 cores
pnml2lts-mc( 0/ 4): Using a tree table with 2^30 elements
pnml2lts-mc( 0/ 4): Successor permutation: dynamic
pnml2lts-mc( 0/ 4): Global bits: 0, count bits: 0, local bits: 0
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): total scc count: 1
pnml2lts-mc( 0/ 4): unique states count: 1
pnml2lts-mc( 0/ 4): unique transitions count: 0
pnml2lts-mc( 0/ 4): - self-loop count: 0
pnml2lts-mc( 0/ 4): - claim dead count: 0
pnml2lts-mc( 0/ 4): - claim found count: 0
pnml2lts-mc( 0/ 4): - claim success count: 4
pnml2lts-mc( 0/ 4): - cum. max stack depth: 4
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): Explored 4 states 4 transitions, fanout: 1.000
pnml2lts-mc( 0/ 4): Total exploration time 0.230 sec (0.120 sec minimum, 0.180 sec on average)
pnml2lts-mc( 0/ 4): States per second: 17, Transitions per second: 17
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): Queue width: 12B, total height: 0, memory: 0.00MB
pnml2lts-mc( 0/ 4): Tree memory: 0.0MB, 272.0 B/state, compr.: 0.9%
pnml2lts-mc( 0/ 4): Tree fill ratio (roots/leafs): 0.0%/0.0%
pnml2lts-mc( 0/ 4): Stored 37047 string chucks using 0MB
pnml2lts-mc( 0/ 4): Total memory used for chunk indexing: 3MB
pnml2lts-mc( 0/ 4): Est. total memory use: 3.0MB (~8195.0MB paged-in)
ltl formula name BART-COL-030-LTLCardinality-6
ltl formula formula --ltl=/tmp/ltl_6_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.260 real 4.560 user 4.210 sys
pnml2lts-mc( 1/ 4): LTL layer: formula: /tmp/ltl_6_
ltl formula name BART-COL-030-LTLCardinality-7
ltl formula formula --ltl=/tmp/ltl_7_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.200 real 4.470 user 4.100 sys
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/ltl_7_
pnml2lts-mc( 2/ 4): buchi has 4 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4): There are 7198 state labels and 1 edge labels
pnml2lts-mc( 0/ 4): State length is 7203, there are 34238 groups
pnml2lts-mc( 0/ 4): Running ufscc using 4 cores
pnml2lts-mc( 0/ 4): Using a tree table with 2^30 elements
pnml2lts-mc( 0/ 4): Successor permutation: dynamic
pnml2lts-mc( 0/ 4): Global bits: 0, count bits: 0, local bits: 0
ltl formula name BART-COL-030-LTLCardinality-8
ltl formula formula --ltl=/tmp/ltl_8_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 1.980 real 4.200 user 3.090 sys
pnml2lts-mc( 2/ 4): LTL layer: formula: /tmp/ltl_8_
pnml2lts-mc( 2/ 4): buchi has 2 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4): There are 7198 state labels and 1 edge labels
pnml2lts-mc( 0/ 4): State length is 7203, there are 34232 groups
pnml2lts-mc( 0/ 4): Running ufscc using 4 cores
pnml2lts-mc( 0/ 4): Using a tree table with 2^30 elements
pnml2lts-mc( 0/ 4): Successor permutation: dynamic
pnml2lts-mc( 0/ 4): Global bits: 0, count bits: 0, local bits: 0
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): total scc count: 1111
pnml2lts-mc( 0/ 4): unique states count: 1111
pnml2lts-mc( 0/ 4): unique transitions count: 1140
pnml2lts-mc( 0/ 4): - self-loop count: 0
pnml2lts-mc( 0/ 4): - claim dead count: 3298
pnml2lts-mc( 0/ 4): - claim found count: 0
pnml2lts-mc( 0/ 4): - claim success count: 1140
pnml2lts-mc( 0/ 4): - cum. max stack depth: 8
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): Explored 1140 states 4564 transitions, fanout: 4.004
pnml2lts-mc( 0/ 4): Total exploration time 28.600 sec (28.550 sec minimum, 28.573 sec on average)
pnml2lts-mc( 0/ 4): States per second: 40, Transitions per second: 160
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): Queue width: 12B, total height: 0, memory: 0.00MB
pnml2lts-mc( 0/ 4): Tree memory: 0.0MB, 40.5 B/state, compr.: 0.1%
pnml2lts-mc( 0/ 4): Tree fill ratio (roots/leafs): 0.0%/0.0%
pnml2lts-mc( 0/ 4): Stored 37047 string chucks using 0MB
pnml2lts-mc( 0/ 4): Total memory used for chunk indexing: 3MB
pnml2lts-mc( 0/ 4): Est. total memory use: 3.0MB (~8195.0MB paged-in)
ltl formula name BART-COL-030-LTLCardinality-9
ltl formula formula --ltl=/tmp/ltl_9_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.110 real 4.280 user 3.890 sys
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/ltl_9_
ltl formula name BART-COL-030-LTLCardinality-10
ltl formula formula --ltl=/tmp/ltl_10_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.100 real 4.270 user 3.560 sys
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/ltl_10_
ltl formula name BART-COL-030-LTLCardinality-11
ltl formula formula --ltl=/tmp/ltl_11_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 1.990 real 3.870 user 3.790 sys
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/ltl_11_
ltl formula name BART-COL-030-LTLCardinality-12
ltl formula formula --ltl=/tmp/ltl_12_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 1.830 real 3.930 user 3.020 sys
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/ltl_12_
ltl formula name BART-COL-030-LTLCardinality-13
ltl formula formula --ltl=/tmp/ltl_13_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.070 real 4.110 user 3.930 sys
pnml2lts-mc( 0/ 4): LTL layer: formula: /tmp/ltl_13_
pnml2lts-mc( 0/ 4): buchi has 2 states
pnml2lts-mc( 0/ 4): There are 7197 state labels and 1 edge labels
pnml2lts-mc( 0/ 4): State length is 7203, there are 34234 groups
pnml2lts-mc( 0/ 4): Running ufscc using 4 cores
pnml2lts-mc( 0/ 4): Using a tree table with 2^30 elements
pnml2lts-mc( 0/ 4): Successor permutation: dynamic
pnml2lts-mc( 0/ 4): Global bits: 0, count bits: 0, local bits: 0
ltl formula name BART-COL-030-LTLCardinality-14
ltl formula formula --ltl=/tmp/ltl_14_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.090 real 4.300 user 3.640 sys
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/ltl_14_
ltl formula name BART-COL-030-LTLCardinality-15
ltl formula formula --ltl=/tmp/ltl_15_
pnml2lts-mc( 0/ 4): Loading model from model.pnml
pnml2lts-mc( 0/ 4): Petri net has 7202 places, 34230 transitions and 198000 arcs
pnml2lts-mc( 0/ 4): Petri net BART-PT-030 analyzed
pnml2lts-mc( 0/ 4): There are no safe places
pnml2lts-mc( 0/ 4): Loading Petri net took 2.210 real 4.370 user 4.210 sys
pnml2lts-mc( 3/ 4): LTL layer: formula: /tmp/ltl_15_
pnml2lts-mc( 3/ 4): buchi has 1 states
pnml2lts-mc( 0/ 4): Weak Buchi automaton detected, adding non-accepting as progress label.
pnml2lts-mc( 0/ 4): There are 7198 state labels and 1 edge labels
pnml2lts-mc( 0/ 4): State length is 7203, there are 34231 groups
pnml2lts-mc( 0/ 4): Running ufscc using 4 cores
pnml2lts-mc( 0/ 4): Using a tree table with 2^30 elements
pnml2lts-mc( 0/ 4): Successor permutation: dynamic
pnml2lts-mc( 0/ 4): Global bits: 0, count bits: 0, local bits: 0
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): total scc count: 1
pnml2lts-mc( 0/ 4): unique states count: 1
pnml2lts-mc( 0/ 4): unique transitions count: 0
pnml2lts-mc( 0/ 4): - self-loop count: 0
pnml2lts-mc( 0/ 4): - claim dead count: 0
pnml2lts-mc( 0/ 4): - claim found count: 0
pnml2lts-mc( 0/ 4): - claim success count: 4
pnml2lts-mc( 0/ 4): - cum. max stack depth: 4
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): Explored 4 states 4 transitions, fanout: 1.000
pnml2lts-mc( 0/ 4): Total exploration time 0.180 sec (0.090 sec minimum, 0.140 sec on average)
pnml2lts-mc( 0/ 4): States per second: 22, Transitions per second: 22
pnml2lts-mc( 0/ 4):
pnml2lts-mc( 0/ 4): Queue width: 12B, total height: 0, memory: 0.00MB
pnml2lts-mc( 0/ 4): Tree memory: 0.0MB, 272.0 B/state, compr.: 0.9%
pnml2lts-mc( 0/ 4): Tree fill ratio (roots/leafs): 0.0%/0.0%
pnml2lts-mc( 0/ 4): Stored 37047 string chucks using 0MB
pnml2lts-mc( 0/ 4): Total memory used for chunk indexing: 3MB
pnml2lts-mc( 0/ 4): Est. total memory use: 3.0MB (~8195.0MB paged-in)

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="BART-PT-030"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="ltsmin"
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/BART-PT-030.tgz
mv BART-PT-030 execution

# this is for BenchKit: explicit launching of the test

cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-3253"
echo " Executing tool ltsmin"
echo " Input is BART-PT-030, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r167-ebro-149580917700113"
echo "====================================================================="
echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '' LTLCardinality.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 ;