fond
Model Checking Contest 2022
12th edition, Bergen, Norway, June 21, 2022
Execution of r283-smll-165307356100242
Last Updated
Jun 22, 2022

About the Execution of ITS-Tools for ViralEpidemic-PT-S08D1C2A04

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
1572.207 461677.00 521393.00 1501.20 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.r283-smll-165307356100242.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 ViralEpidemic-PT-S08D1C2A04, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r283-smll-165307356100242
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 27M
-rw-r--r-- 1 mcc users 7.4K Apr 29 12:52 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K Apr 29 12:52 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Apr 29 12:36 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K Apr 29 12:36 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.5K May 9 09:22 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 9 09:22 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K May 9 09:22 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 9 09:22 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.9K May 9 09:22 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 9 09:22 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 11 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 27M 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1653150031023

Running Version 202205111006
[2022-05-21 16:20:33] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -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]
[2022-05-21 16:20:33] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-21 16:20:35] [INFO ] Load time of PNML (sax parser for PT used): 2363 ms
[2022-05-21 16:20:36] [INFO ] Transformed 46811 places.
[2022-05-21 16:20:36] [INFO ] Transformed 79577 transitions.
[2022-05-21 16:20:36] [INFO ] Parsed PT model containing 46811 places and 79577 transitions in 3024 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 46811/46811 places, 79577/79577 transitions.
Applied a total of 0 rules in 2476 ms. Remains 46811 /46811 variables (removed 0) and now considering 79577/79577 (removed 0) transitions.
// Phase 1: matrix 79577 rows 46811 cols
[2022-05-21 16:21:15] [INFO ] Computed 1 place invariants in 35664 ms
[2022-05-21 16:21:22] [INFO ] SMT solver returned unknown. Retrying;
[2022-05-21 16:21:22] [INFO ] Implicit Places using invariants in 43085 ms returned []
Implicit Place search using SMT only with invariants took 43130 ms to find 0 implicit places.
// Phase 1: matrix 79577 rows 46811 cols
[2022-05-21 16:21:53] [INFO ] Computed 1 place invariants in 31027 ms
[2022-05-21 16:21:59] [INFO ] SMT solver returned unknown. Retrying;
[2022-05-21 16:21:59] [INFO ] Dead Transitions using invariants and state equation in 37559 ms found 0 transitions.
Finished structural reductions, in 1 iterations. Remains : 46811/46811 places, 79577/79577 transitions.
Discarding 4680 transitions out of 79577. Remains 74897
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 3 resets, run finished after 5463 ms. (steps per millisecond=1 ) properties (out of 74896) seen :21606
Running SMT prover for 53209 properties.
// Phase 1: matrix 79577 rows 46811 cols
[2022-05-21 16:22:48] [INFO ] Computed 1 place invariants in 35369 ms
[2022-05-21 16:23:14] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2022-05-21 16:23:14] [INFO ] After 25079ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 53209 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 11 ms.
Support contains 36906 out of 46811 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 46811/46811 places, 79577/79577 transitions.
Graph (complete) has 37448 edges and 46811 vertex of which 40250 are kept as prefixes of interest. Removing 6561 places using SCC suffix rule.143 ms
Discarding 6561 places :
Also discarding 10391 output transitions
Drop transitions removed 10391 transitions
Drop transitions removed 2026 transitions
Reduce isomorphic transitions removed 2026 transitions.
Iterating post reduction 0 with 2026 rules applied. Total rules applied 2027 place count 40250 transition count 67160
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 1 Pre rules applied. Total rules applied 2027 place count 40250 transition count 67159
Deduced a syphon composed of 1 places in 24 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 1 with 2 rules applied. Total rules applied 2029 place count 40249 transition count 67159
Discarding 1678 places :
Symmetric choice reduction at 1 with 1678 rule applications. Total rules 3707 place count 38571 transition count 64003
Iterating global reduction 1 with 1678 rules applied. Total rules applied 5385 place count 38571 transition count 64003
Performed 69 Post agglomeration using F-continuation condition.Transition count delta: 69
Deduced a syphon composed of 69 places in 11 ms
Reduce places removed 69 places and 0 transitions.
Iterating global reduction 1 with 138 rules applied. Total rules applied 5523 place count 38502 transition count 63934
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 1 with 1 rules applied. Total rules applied 5524 place count 38501 transition count 63933
Applied a total of 5524 rules in 5980 ms. Remains 38501 /46811 variables (removed 8310) and now considering 63933/79577 (removed 15644) transitions.
Finished structural reductions, in 1 iterations. Remains : 38501/46811 places, 63933/79577 transitions.
Interrupted random walk after 46347 steps, including 5 resets, run timeout after 30001 ms. (steps per millisecond=1 ) properties seen 48535
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 299 ms. (steps per millisecond=3 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 196 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 194 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 185 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 200 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 190 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 194 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 202 ms. (steps per millisecond=4 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 187 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 190 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 210 ms. (steps per millisecond=4 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 187 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 189 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 196 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 186 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 234 ms. (steps per millisecond=4 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 177 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 179 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 177 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 191 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 174 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 174 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 186 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 180 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 179 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 181 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 176 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 185 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 180 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 174 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 181 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 186 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 209 ms. (steps per millisecond=4 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 202 ms. (steps per millisecond=4 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 176 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 177 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 188 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 174 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 175 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 182 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 176 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 176 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 177 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Incomplete Best-First random walk after 1001 steps, including 2 resets, run finished after 198 ms. (steps per millisecond=5 ) properties (out of 4674) seen :0
Running SMT prover for 4674 properties.
// Phase 1: matrix 63933 rows 38501 cols
[2022-05-21 16:24:20] [INFO ] Computed 586 place invariants in 20511 ms
[2022-05-21 16:28:05] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2022-05-21 16:28:05] [INFO ] After 225035ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 4674 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 4198 out of 38501 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 38501/38501 places, 63933/63933 transitions.
Graph (complete) has 30217 edges and 38501 vertex of which 6316 are kept as prefixes of interest. Removing 32185 places using SCC suffix rule.20 ms
Discarding 32185 places :
Also discarding 52797 output transitions
Drop transitions removed 52797 transitions
Drop transitions removed 2003 transitions
Reduce isomorphic transitions removed 2003 transitions.
Iterating post reduction 0 with 2003 rules applied. Total rules applied 2004 place count 6316 transition count 9133
Performed 125 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 1 with 125 Pre rules applied. Total rules applied 2004 place count 6316 transition count 9008
Deduced a syphon composed of 125 places in 1 ms
Reduce places removed 125 places and 0 transitions.
Iterating global reduction 1 with 250 rules applied. Total rules applied 2254 place count 6191 transition count 9008
Discarding 954 places :
Symmetric choice reduction at 1 with 954 rule applications. Total rules 3208 place count 5237 transition count 7567
Iterating global reduction 1 with 954 rules applied. Total rules applied 4162 place count 5237 transition count 7567
Performed 127 Post agglomeration using F-continuation condition.Transition count delta: 127
Deduced a syphon composed of 127 places in 1 ms
Reduce places removed 127 places and 0 transitions.
Iterating global reduction 1 with 254 rules applied. Total rules applied 4416 place count 5110 transition count 7440
Reduce places removed 48 places and 48 transitions.
Iterating global reduction 1 with 48 rules applied. Total rules applied 4464 place count 5062 transition count 7392
Applied a total of 4464 rules in 2063 ms. Remains 5062 /38501 variables (removed 33439) and now considering 7392/63933 (removed 56541) transitions.
Finished structural reductions, in 1 iterations. Remains : 5062/38501 places, 7392/63933 transitions.
Finished random walk after 13001 steps, including 6 resets, run visited all 4674 properties in 4796 ms. (steps per millisecond=2 )
Able to resolve query QuasiLiveness after proving 74897 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK BESTFIRST_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 459319 ms.

BK_STOP 1653150492700

--------------------
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
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -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 QuasiLiveness -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="ViralEpidemic-PT-S08D1C2A04"
export BK_EXAMINATION="QuasiLiveness"
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 ViralEpidemic-PT-S08D1C2A04, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r283-smll-165307356100242"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ViralEpidemic-PT-S08D1C2A04.tgz
mv ViralEpidemic-PT-S08D1C2A04 execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;