Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r070-tall-171620506200591.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...............
=====================================================================
Generated by BenchKit 2-5568
Executing tool itstools
Input is CloudDeployment-PT-5a, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r070-tall-171620506200591
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 720K
-rw-r--r-- 1 mcc users 6.5K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 72K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:34 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 22 14:34 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Apr 22 14:34 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K Apr 22 14:34 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Apr 11 16:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 165K Apr 11 16:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Apr 11 16:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 58K Apr 11 16:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 22 14:34 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 22 14:34 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 3 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 230K May 18 16:42 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 CloudDeployment-PT-5a-ReachabilityFireability-2024-00
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-01
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-02
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-03
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-04
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-05
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-06
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-07
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-08
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-09
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-10
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-11
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-12
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-13
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-14
FORMULA_NAME CloudDeployment-PT-5a-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716329217178

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CloudDeployment-PT-5a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-05-21 22:06:58] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-21 22:06:58] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-21 22:06:58] [INFO ] Load time of PNML (sax parser for PT used): 97 ms
[2024-05-21 22:06:58] [INFO ] Transformed 180 places.
[2024-05-21 22:06:58] [INFO ] Transformed 675 transitions.
[2024-05-21 22:06:58] [INFO ] Found NUPN structural information;
[2024-05-21 22:06:58] [INFO ] Parsed PT model containing 180 places and 675 transitions and 3959 arcs in 202 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 80 transitions
Reduce redundant transitions removed 80 transitions.
[2024-05-21 22:06:59] [INFO ] Flatten gal took : 225 ms
RANDOM walk for 40000 steps (532 resets) in 2466 ms. (16 steps per ms) remains 8/16 properties
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2024-05-21 22:06:59] [INFO ] Flatten gal took : 109 ms
[2024-05-21 22:06:59] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14484382431150686163.gal : 52 ms
[2024-05-21 22:06:59] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality18158748872116384891.prop : 14 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality14484382431150686163.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality18158748872116384891.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 40004 steps (65 resets) in 660 ms. (60 steps per ms) remains 6/8 properties
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Loading property file /tmp/ReachabilityCardinality18158748872116384891.prop.
BEST_FIRST walk for 40004 steps (49 resets) in 176 ms. (226 steps per ms) remains 5/6 properties
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
SDD proceeding with computation,8 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,8 properties remain. new max is 8
SDD size :5 after 8
SDD proceeding with computation,8 properties remain. new max is 16
SDD size :8 after 13
SDD proceeding with computation,8 properties remain. new max is 32
SDD size :13 after 19
SDD proceeding with computation,8 properties remain. new max is 64
SDD size :19 after 21
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :21 after 52
SDD proceeding with computation,8 properties remain. new max is 256
SDD size :52 after 1435
BEST_FIRST walk for 40003 steps (9 resets) in 224 ms. (177 steps per ms) remains 5/5 properties
SDD proceeding with computation,8 properties remain. new max is 512
SDD size :1435 after 10172
BEST_FIRST walk for 40003 steps (15 resets) in 268 ms. (148 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (36 resets) in 238 ms. (167 steps per ms) remains 4/5 properties
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
SDD proceeding with computation,8 properties remain. new max is 1024
SDD size :10172 after 108759
[2024-05-21 22:06:59] [INFO ] Flow matrix only has 301 transitions (discarded 294 similar events)
// Phase 1: matrix 301 rows 180 cols
[2024-05-21 22:06:59] [INFO ] Computed 30 invariants in 17 ms
[2024-05-21 22:06:59] [INFO ] State equation strengthened by 132 read => feed constraints.
Reachability property CloudDeployment-PT-5a-ReachabilityFireability-2024-14 is true.
Reachability property CloudDeployment-PT-5a-ReachabilityFireability-2024-02 is true.
SDD proceeding with computation,6 properties remain. new max is 1024
SDD size :108759 after 517201
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/72 variables, 72/72 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/72 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 4 unsolved
SDD proceeding with computation,6 properties remain. new max is 2048
SDD size :517201 after 532877
At refinement iteration 2 (OVERLAPS) 97/169 variables, 20/92 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/169 variables, 97/189 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/169 variables, 0/189 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 10/179 variables, 10/199 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/179 variables, 10/209 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/179 variables, 0/209 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 300/479 variables, 179/388 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/479 variables, 131/519 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/479 variables, 0/519 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 1/480 variables, 1/520 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/480 variables, 1/521 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/480 variables, 0/521 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (OVERLAPS) 1/481 variables, 1/522 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/481 variables, 0/522 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (OVERLAPS) 0/481 variables, 0/522 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 481/481 variables, and 522 constraints, problems are : Problem set: 0 solved, 4 unsolved in 720 ms.
Refiners :[Domain max(s): 180/180 constraints, Generalized P Invariants (flows): 30/30 constraints, State Equation: 180/180 constraints, ReadFeed: 132/132 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/72 variables, 72/72 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/72 variables, 0/72 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem CloudDeployment-PT-5a-ReachabilityFireability-2024-01 is UNSAT
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
Problem CloudDeployment-PT-5a-ReachabilityFireability-2024-06 is UNSAT
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-06 TRUE TECHNIQUES SMT_REFINEMENT
Problem CloudDeployment-PT-5a-ReachabilityFireability-2024-07 is UNSAT
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-07 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 97/169 variables, 20/92 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/169 variables, 97/189 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/169 variables, 0/189 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 10/179 variables, 10/199 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/179 variables, 10/209 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/179 variables, 0/209 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 300/479 variables, 179/388 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/479 variables, 131/519 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/479 variables, 1/520 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/479 variables, 0/520 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 1/480 variables, 1/521 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/480 variables, 1/522 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/480 variables, 0/522 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 1/481 variables, 1/523 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/481 variables, 0/523 constraints. Problems are: Problem set: 3 solved, 1 unsolved
Invariant property CloudDeployment-PT-5a-ReachabilityFireability-2024-13 does not hold.
At refinement iteration 17 (OVERLAPS) 0/481 variables, 0/523 constraints. Problems are: Problem set: 3 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 481/481 variables, and 523 constraints, problems are : Problem set: 3 solved, 1 unsolved in 558 ms.
Refiners :[Domain max(s): 180/180 constraints, Generalized P Invariants (flows): 30/30 constraints, State Equation: 180/180 constraints, ReadFeed: 132/132 constraints, PredecessorRefiner: 1/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 1488ms problems are : Problem set: 3 solved, 1 unsolved
Finished Parikh walk after 38 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=38 )
FORMULA CloudDeployment-PT-5a-ReachabilityFireability-2024-12 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 8 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 3047 ms.

BK_STOP 1716329221397

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="CloudDeployment-PT-5a"
export BK_EXAMINATION="ReachabilityFireability"
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 2-5568"
echo " Executing tool itstools"
echo " Input is CloudDeployment-PT-5a, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r070-tall-171620506200591"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CloudDeployment-PT-5a.tgz
mv CloudDeployment-PT-5a execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;