About the Execution of ITS-Tools for DBSingleClientW-PT-d0m08
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
200.539 | 3975.00 | 8857.00 | 56.00 | FFTTFTFTFFFFFTTT | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2022-input.r312-tall-165472281800163.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
............
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is DBSingleClientW-PT-d0m08, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r312-tall-165472281800163
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 552K
-rw-r--r-- 1 mcc users 6.0K Jun 7 17:15 CTLCardinality.txt
-rw-r--r-- 1 mcc users 61K Jun 7 17:15 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.4K Jun 7 17:15 CTLFireability.txt
-rw-r--r-- 1 mcc users 64K Jun 7 17:15 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.8K Jun 6 15:24 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Jun 6 15:24 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Jun 6 15:24 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Jun 6 15:24 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 6 12:11 NewModel
-rw-r--r-- 1 mcc users 8.8K Jun 7 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 92K Jun 7 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.9K Jun 7 17:15 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K Jun 7 17:15 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 6 15:24 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Jun 6 15:24 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 6 12:11 equiv_col
-rw-r--r-- 1 mcc users 6 Jun 6 12:11 instance
-rw-r--r-- 1 mcc users 6 Jun 6 12:11 iscolored
-rw-r--r-- 1 mcc users 119K Jun 6 12:11 model.pnml
--------------------
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 DBSingleClientW-PT-d0m08-LTLCardinality-00
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-01
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-02
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-03
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-04
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-05
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-06
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-07
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-08
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-09
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-10
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-11
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-12
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-13
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-14
FORMULA_NAME DBSingleClientW-PT-d0m08-LTLCardinality-15
=== Now, execution of the tool begins
BK_START 1654774583640
Running Version 202205111006
[2022-06-09 11:36:24] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2022-06-09 11:36:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-06-09 11:36:24] [INFO ] Load time of PNML (sax parser for PT used): 92 ms
[2022-06-09 11:36:24] [INFO ] Transformed 553 places.
[2022-06-09 11:36:24] [INFO ] Transformed 150 transitions.
[2022-06-09 11:36:24] [INFO ] Parsed PT model containing 553 places and 150 transitions in 193 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 9 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 5 formulas.
Deduced a syphon composed of 444 places in 2 ms
Reduce places removed 444 places and 0 transitions.
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-12 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 2 out of 109 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 109/109 places, 150/150 transitions.
Reduce places removed 7 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Iterating post reduction 0 with 18 rules applied. Total rules applied 18 place count 102 transition count 139
Discarding 24 places :
Symmetric choice reduction at 1 with 24 rule applications. Total rules 42 place count 78 transition count 96
Iterating global reduction 1 with 24 rules applied. Total rules applied 66 place count 78 transition count 96
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 67 place count 78 transition count 95
Discarding 12 places :
Symmetric choice reduction at 2 with 12 rule applications. Total rules 79 place count 66 transition count 83
Iterating global reduction 2 with 12 rules applied. Total rules applied 91 place count 66 transition count 83
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 93 place count 66 transition count 81
Discarding 3 places :
Symmetric choice reduction at 3 with 3 rule applications. Total rules 96 place count 63 transition count 75
Iterating global reduction 3 with 3 rules applied. Total rules applied 99 place count 63 transition count 75
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 100 place count 63 transition count 74
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 102 place count 61 transition count 71
Iterating global reduction 4 with 2 rules applied. Total rules applied 104 place count 61 transition count 71
Discarding 2 places :
Symmetric choice reduction at 4 with 2 rule applications. Total rules 106 place count 59 transition count 69
Iterating global reduction 4 with 2 rules applied. Total rules applied 108 place count 59 transition count 69
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 110 place count 59 transition count 67
Discarding 1 places :
Symmetric choice reduction at 5 with 1 rule applications. Total rules 111 place count 58 transition count 66
Iterating global reduction 5 with 1 rules applied. Total rules applied 112 place count 58 transition count 66
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 5 with 2 rules applied. Total rules applied 114 place count 58 transition count 64
Applied a total of 114 rules in 46 ms. Remains 58 /109 variables (removed 51) and now considering 64/150 (removed 86) transitions.
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:25] [INFO ] Computed 2 place invariants in 10 ms
[2022-06-09 11:36:25] [INFO ] Implicit Places using invariants in 186 ms returned []
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:25] [INFO ] Computed 2 place invariants in 4 ms
[2022-06-09 11:36:25] [INFO ] State equation strengthened by 20 read => feed constraints.
[2022-06-09 11:36:25] [INFO ] Implicit Places using invariants and state equation in 111 ms returned []
Implicit Place search using SMT with State Equation took 325 ms to find 0 implicit places.
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:25] [INFO ] Computed 2 place invariants in 2 ms
[2022-06-09 11:36:25] [INFO ] Dead Transitions using invariants and state equation in 73 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 58/109 places, 64/150 transitions.
Finished structural reductions, in 1 iterations. Remains : 58/109 places, 64/150 transitions.
Support contains 2 out of 58 places after structural reductions.
[2022-06-09 11:36:25] [INFO ] Initial state reduction rules for LTL removed 2 formulas.
[2022-06-09 11:36:25] [INFO ] Flatten gal took : 28 ms
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2022-06-09 11:36:25] [INFO ] Flatten gal took : 10 ms
[2022-06-09 11:36:25] [INFO ] Input system was already deterministic with 64 transitions.
Incomplete random walk after 10000 steps, including 2248 resets, run finished after 198 ms. (steps per millisecond=50 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 1013 resets, run finished after 59 ms. (steps per millisecond=169 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10000 steps, including 982 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 2) seen :0
Finished probabilistic random walk after 34995 steps, run visited all 2 properties in 92 ms. (steps per millisecond=380 )
Probabilistic random walk after 34995 steps, saw 14858 distinct states, run finished after 93 ms. (steps per millisecond=376 ) properties seen :2
Computed a total of 5 stabilizing places and 5 stable transitions
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(F(X(G(F(p0)))))'
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in SI_LTL mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 14 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:26] [INFO ] Computed 2 place invariants in 1 ms
[2022-06-09 11:36:26] [INFO ] Implicit Places using invariants in 55 ms returned []
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:26] [INFO ] Computed 2 place invariants in 1 ms
[2022-06-09 11:36:26] [INFO ] State equation strengthened by 20 read => feed constraints.
[2022-06-09 11:36:26] [INFO ] Implicit Places using invariants and state equation in 108 ms returned []
Implicit Place search using SMT with State Equation took 165 ms to find 0 implicit places.
[2022-06-09 11:36:26] [INFO ] Redundant transitions in 1 ms returned []
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:26] [INFO ] Computed 2 place invariants in 1 ms
[2022-06-09 11:36:26] [INFO ] Dead Transitions using invariants and state equation in 66 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 58/58 places, 64/64 transitions.
Stuttering acceptance computed with spot in 189 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : DBSingleClientW-PT-d0m08-LTLCardinality-08 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 0}, { cond=(NOT p0), acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(LEQ 3 s52)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-invariant, very-weak, weak, inherently-weak], stateDesc=[null, null][true, true]]
Stuttering criterion allowed to conclude after 3 steps with 0 reset in 3 ms.
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-08 FALSE TECHNIQUES STUTTER_TEST
Treatment of property DBSingleClientW-PT-d0m08-LTLCardinality-08 finished in 498 ms.
Running Spot : cd /home/mcc/execution;'/home/mcc/BenchKit/bin//..//ltl2tgba' '--check=stutter' '--hoaf=tv' '-f' '!(X((F(F(X(X(p0))))||!p0)))'
Support contains 1 out of 58 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 58/58 places, 64/64 transitions.
Applied a total of 0 rules in 1 ms. Remains 58 /58 variables (removed 0) and now considering 64/64 (removed 0) transitions.
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:26] [INFO ] Computed 2 place invariants in 6 ms
[2022-06-09 11:36:26] [INFO ] Implicit Places using invariants in 62 ms returned []
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:26] [INFO ] Computed 2 place invariants in 1 ms
[2022-06-09 11:36:26] [INFO ] State equation strengthened by 20 read => feed constraints.
[2022-06-09 11:36:26] [INFO ] Implicit Places using invariants and state equation in 98 ms returned []
Implicit Place search using SMT with State Equation took 162 ms to find 0 implicit places.
// Phase 1: matrix 64 rows 58 cols
[2022-06-09 11:36:26] [INFO ] Computed 2 place invariants in 3 ms
[2022-06-09 11:36:26] [INFO ] Dead Transitions using invariants and state equation in 59 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 58/58 places, 64/64 transitions.
Stuttering acceptance computed with spot in 146 ms :[false, (NOT p0), (NOT p0), false]
Running random walk in product with property : DBSingleClientW-PT-d0m08-LTLCardinality-14 automaton TGBA Formula[mat=[[{ cond=p0, acceptance={} source=0 dest: 2}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}], [{ cond=true, acceptance={} source=2 dest: 1}], [{ cond=true, acceptance={} source=3 dest: 0}]], initial=3, aps=[p0:(GT s38 0)], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 50000 reset in 272 ms.
Product exploration explored 100000 steps with 50000 reset in 165 ms.
Computed a total of 5 stabilizing places and 5 stable transitions
Computed a total of 5 stabilizing places and 5 stable transitions
Knowledge obtained : [(NOT p0), (X (NOT p0)), true]
False Knowledge obtained : []
Property proved to be true thanks to knowledge :(X (NOT p0))
Knowledge based reduction with 3 factoid took 52 ms. Reduced automaton from 4 states, 4 edges and 1 AP to 1 states, 0 edges and 0 AP.
FORMULA DBSingleClientW-PT-d0m08-LTLCardinality-14 TRUE TECHNIQUES KNOWLEDGE
Treatment of property DBSingleClientW-PT-d0m08-LTLCardinality-14 finished in 874 ms.
All properties solved by simple procedures.
Total runtime 2788 ms.
BK_STOP 1654774587615
--------------------
content from stderr:
+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination LTLCardinality -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m
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="DBSingleClientW-PT-d0m08"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="itstools"
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 2-4028"
echo " Executing tool itstools"
echo " Input is DBSingleClientW-PT-d0m08, 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 r312-tall-165472281800163"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/DBSingleClientW-PT-d0m08.tgz
mv DBSingleClientW-PT-d0m08 execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "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 '
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;