fond
Model Checking Contest 2022
12th edition, Bergen, Norway, June 21, 2022
Execution of r175-tall-165277024200265
Last Updated
Jun 22, 2022

About the Execution of ITS-Tools for PhilosophersDyn-PT-10

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
543.144 120222.00 198615.00 314.50 T 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.r175-tall-165277024200265.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 PhilosophersDyn-PT-10, examination is OneSafe
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r175-tall-165277024200265
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.7M
-rw-r--r-- 1 mcc users 37K Apr 30 07:53 CTLCardinality.txt
-rw-r--r-- 1 mcc users 182K Apr 30 07:53 CTLCardinality.xml
-rw-r--r-- 1 mcc users 318K Apr 30 07:51 CTLFireability.txt
-rw-r--r-- 1 mcc users 1.6M Apr 30 07:51 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 28K May 9 08:27 LTLCardinality.txt
-rw-r--r-- 1 mcc users 89K May 9 08:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 126K May 9 08:27 LTLFireability.txt
-rw-r--r-- 1 mcc users 469K May 9 08:27 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.3K May 9 08:27 UpperBounds.txt
-rw-r--r-- 1 mcc users 14K May 9 08:27 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 3 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 1.8M May 10 09:34 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME OneSafe

=== Now, execution of the tool begins

BK_START 1652811357792

Running Version 202205111006
[2022-05-17 18:15:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, OneSafe, -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, 1800]
[2022-05-17 18:15:59] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-17 18:15:59] [INFO ] Load time of PNML (sax parser for PT used): 216 ms
[2022-05-17 18:15:59] [INFO ] Transformed 170 places.
[2022-05-17 18:15:59] [INFO ] Transformed 2310 transitions.
[2022-05-17 18:15:59] [INFO ] Parsed PT model containing 170 places and 2310 transitions in 345 ms.
Ensure Unique test removed 45 transitions
Reduce redundant transitions removed 45 transitions.
Normalized transition count is 1905 out of 2265 initially.
// Phase 1: matrix 1905 rows 170 cols
[2022-05-17 18:15:59] [INFO ] Computed 39 place invariants in 81 ms
[2022-05-17 18:15:59] [INFO ] Rough structural analysis with invariants proved 118 places are one safe in 94 ms (including invariant computation).
[2022-05-17 18:15:59] [INFO ] [Real]Absence check using 27 positive place invariants in 34 ms proved 0 places are One-Safe.
[2022-05-17 18:15:59] [INFO ] [Real]Absence check using 27 positive and 12 generalized place invariants in 31 ms proved 42 places are One-Safe.
[2022-05-17 18:15:59] [INFO ] Flow matrix only has 1905 transitions (discarded 360 similar events)
[2022-05-17 18:16:00] [INFO ] [Real] State equation constraints in 512 ms proved 0 places are One-Safe.
Incomplete random walk after 10000 steps, including 1195 resets, run finished after 696 ms. (steps per millisecond=14 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 10 ms. (steps per millisecond=100 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 35 ms. (steps per millisecond=28 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 11 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 10 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 3 ms. (steps per millisecond=333 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 7 ms. (steps per millisecond=143 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 11 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 9 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 9 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 7 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 8 resets, run finished after 5 ms. (steps per millisecond=200 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1000 steps, including 8 resets, run finished after 4 ms. (steps per millisecond=250 ) properties (out of 52) seen :0
Incomplete Best-First random walk after 1001 steps, including 11 resets, run finished after 6 ms. (steps per millisecond=166 ) properties (out of 52) seen :0
Interrupted probabilistic random walk after 114811 steps, run timeout after 3001 ms. (steps per millisecond=38 ) properties seen :{}
Probabilistic random walk after 114811 steps, saw 30250 distinct states, run finished after 3002 ms. (steps per millisecond=38 ) properties seen :0
Running SMT prover for 52 properties.
[2022-05-17 18:16:04] [INFO ] Flow matrix only has 1905 transitions (discarded 360 similar events)
// Phase 1: matrix 1905 rows 170 cols
[2022-05-17 18:16:04] [INFO ] Computed 39 place invariants in 40 ms
[2022-05-17 18:16:04] [INFO ] [Real]Absence check using 27 positive place invariants in 6 ms returned sat
[2022-05-17 18:16:04] [INFO ] [Real]Absence check using 27 positive and 12 generalized place invariants in 9 ms returned sat
[2022-05-17 18:16:05] [INFO ] After 1507ms SMT Verify possible using all constraints in real domain returned unsat :42 sat :0 real:10
[2022-05-17 18:16:06] [INFO ] [Nat]Absence check using 27 positive place invariants in 4 ms returned sat
[2022-05-17 18:16:06] [INFO ] [Nat]Absence check using 27 positive and 12 generalized place invariants in 6 ms returned sat
[2022-05-17 18:16:07] [INFO ] After 1252ms SMT Verify possible using state equation in natural domain returned unsat :42 sat :10
[2022-05-17 18:16:07] [INFO ] State equation strengthened by 1030 read => feed constraints.
[2022-05-17 18:16:09] [INFO ] After 2080ms SMT Verify possible using 1030 Read/Feed constraints in natural domain returned unsat :42 sat :10
[2022-05-17 18:16:10] [INFO ] Deduced a trap composed of 70 places in 283 ms of which 4 ms to minimize.
[2022-05-17 18:16:10] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 395 ms
[2022-05-17 18:16:11] [INFO ] Deduced a trap composed of 70 places in 290 ms of which 1 ms to minimize.
[2022-05-17 18:16:11] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 462 ms
[2022-05-17 18:16:12] [INFO ] Deduced a trap composed of 72 places in 270 ms of which 1 ms to minimize.
[2022-05-17 18:16:12] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 372 ms
[2022-05-17 18:16:12] [INFO ] After 4966ms SMT Verify possible using trap constraints in natural domain returned unsat :42 sat :10
Attempting to minimize the solution found.
Minimization took 1428 ms.
[2022-05-17 18:16:13] [INFO ] After 7880ms SMT Verify possible using all constraints in natural domain returned unsat :42 sat :10
Fused 52 Parikh solutions to 10 different solutions.
Parikh walk visited 0 properties in 6185 ms.
Support contains 10 out of 170 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 170/170 places, 2265/2265 transitions.
Applied a total of 0 rules in 295 ms. Remains 170 /170 variables (removed 0) and now considering 2265/2265 (removed 0) transitions.
[2022-05-17 18:16:20] [INFO ] Flow matrix only has 1905 transitions (discarded 360 similar events)
// Phase 1: matrix 1905 rows 170 cols
[2022-05-17 18:16:20] [INFO ] Computed 39 place invariants in 26 ms
[2022-05-17 18:16:21] [INFO ] Dead Transitions using invariants and state equation in 835 ms found 380 transitions.
Found 380 dead transitions using SMT.
Drop transitions removed 380 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 380 transitions.
Starting structural reductions in SAFETY mode, iteration 1 : 170/170 places, 1885/2265 transitions.
Applied a total of 0 rules in 116 ms. Remains 170 /170 variables (removed 0) and now considering 1885/1885 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 170/170 places, 1885/2265 transitions.
Interrupted random walk after 835996 steps, including 99820 resets, run timeout after 30001 ms. (steps per millisecond=27 ) properties seen 0
Incomplete Best-First random walk after 1000000 steps, including 9168 resets, run finished after 3482 ms. (steps per millisecond=287 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9199 resets, run finished after 3287 ms. (steps per millisecond=304 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9172 resets, run finished after 3171 ms. (steps per millisecond=315 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9185 resets, run finished after 3438 ms. (steps per millisecond=290 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9167 resets, run finished after 3455 ms. (steps per millisecond=289 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9167 resets, run finished after 3408 ms. (steps per millisecond=293 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000000 steps, including 9178 resets, run finished after 3333 ms. (steps per millisecond=300 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9171 resets, run finished after 3393 ms. (steps per millisecond=294 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9151 resets, run finished after 3289 ms. (steps per millisecond=304 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 1000001 steps, including 9167 resets, run finished after 3292 ms. (steps per millisecond=303 ) properties (out of 10) seen :0
Probably explored full state space saw : 199046 states, properties seen :0
Probabilistic random walk after 816332 steps, saw 199046 distinct states, run finished after 16390 ms. (steps per millisecond=49 ) properties seen :0
Explored full state space saw : 199051 states, properties seen :0
Exhaustive walk after 816356 steps, saw 199051 distinct states, run finished after 16771 ms. (steps per millisecond=48 ) properties seen :0
Able to resolve query OneSafe after proving 212 properties.
FORMULA OneSafe TRUE TECHNIQUES EXHAUSTIVE_WALK STRUCTURAL_REDUCTION INVARIANTS TOPOLOGICAL SAT_SMT STRUCTURAL
Total runtime 118964 ms.

BK_STOP 1652811478014

--------------------
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
+ [[ OneSafe = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution OneSafe -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ 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 OneSafe -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 1800 -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="PhilosophersDyn-PT-10"
export BK_EXAMINATION="OneSafe"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 PhilosophersDyn-PT-10, examination is OneSafe"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r175-tall-165277024200265"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PhilosophersDyn-PT-10.tgz
mv PhilosophersDyn-PT-10 execution
cd execution
if [ "OneSafe" = "ReachabilityDeadlock" ] || [ "OneSafe" = "UpperBounds" ] || [ "OneSafe" = "QuasiLiveness" ] || [ "OneSafe" = "StableMarking" ] || [ "OneSafe" = "Liveness" ] || [ "OneSafe" = "OneSafe" ] || [ "OneSafe" = "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 [ "OneSafe" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "OneSafe" != "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 "OneSafe.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property OneSafe.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "OneSafe.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 '' OneSafe.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "OneSafe" = "ReachabilityDeadlock" ] || [ "OneSafe" = "QuasiLiveness" ] || [ "OneSafe" = "StableMarking" ] || [ "OneSafe" = "Liveness" ] || [ "OneSafe" = "OneSafe" ] ; then
echo "FORMULA_NAME OneSafe"
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 ;