Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r058-smll-174854064700758.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is DiscoveryGPU-PT-15a, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r058-smll-174854064700758
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 504K
-rw-r--r-- 1 mcc users 7.2K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 61K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.1K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 93K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.6K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 75K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 53K May 29 14:32 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-00
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-01
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-02
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-03
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-04
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-05
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-06
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-07
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-08
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-09
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-10
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-11
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-12
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-13
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-14
FORMULA_NAME DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-15

=== Now, execution of the tool begins

BK_START 1748956441194

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=DiscoveryGPU-PT-15a
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202505121319
[2025-06-03 13:14:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-03 13:14:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-03 13:14:03] [INFO ] Load time of PNML (sax parser for PT used): 135 ms
[2025-06-03 13:14:03] [INFO ] Transformed 153 places.
[2025-06-03 13:14:03] [INFO ] Transformed 211 transitions.
[2025-06-03 13:14:03] [INFO ] Found NUPN structural information;
[2025-06-03 13:14:03] [INFO ] Parsed PT model containing 153 places and 211 transitions and 678 arcs in 368 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 34 ms.
Working with output stream class java.io.PrintStream
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2025-06-03 13:14:04] [INFO ] Flatten gal took : 133 ms
RANDOM walk for 40000 steps (245 resets) in 2062 ms. (19 steps per ms) remains 3/14 properties
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-06-03 13:14:04] [INFO ] Flatten gal took : 105 ms
[2025-06-03 13:14:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality6232112739627347433.gal : 68 ms
BEST_FIRST walk for 40004 steps (12 resets) in 762 ms. (52 steps per ms) remains 3/3 properties
[2025-06-03 13:14:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1751887072450289657.prop : 4 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality6232112739627347433.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1751887072450289657.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40003 steps (17 resets) in 200 ms. (199 steps per ms) remains 3/3 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality1751887072450289657.prop.
BEST_FIRST walk for 40003 steps (8 resets) in 306 ms. (130 steps per ms) remains 3/3 properties
SDD proceeding with computation,3 properties remain. new max is 4
SDD size :1 after 53
SDD proceeding with computation,3 properties remain. new max is 8
SDD size :53 after 223
SDD proceeding with computation,3 properties remain. new max is 16
SDD size :223 after 225
SDD proceeding with computation,3 properties remain. new max is 32
SDD size :225 after 226
[2025-06-03 13:14:05] [INFO ] Flow matrix only has 196 transitions (discarded 15 similar events)
SDD proceeding with computation,3 properties remain. new max is 64
SDD size :226 after 2500
// Phase 1: matrix 196 rows 153 cols
SDD proceeding with computation,3 properties remain. new max is 128
SDD size :2500 after 2527
[2025-06-03 13:14:05] [INFO ] Computed 2 invariants in 13 ms
[2025-06-03 13:14:05] [INFO ] State equation strengthened by 120 read => feed constraints.
SDD proceeding with computation,3 properties remain. new max is 256
SDD size :2527 after 6936
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Problem DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-06 is UNSAT
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-06 FALSE TECHNIQUES SMT_REFINEMENT
Problem DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-15 is UNSAT
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-15 FALSE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/35 variables, 35/35 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/35 variables, 0/35 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 71/106 variables, 35/70 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/106 variables, 42/112 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/106 variables, 0/112 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 101/207 variables, 53/165 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/207 variables, 53/218 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/207 variables, 2/220 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/207 variables, 34/254 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/207 variables, 0/254 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 67/274 variables, 29/283 constraints. Problems are: Problem set: 2 solved, 1 unsolved
SDD proceeding with computation,3 properties remain. new max is 512
At refinement iteration 11 (INCLUDED_ONLY) 0/274 variables, 29/312 constraints. Problems are: Problem set: 2 solved, 1 unsolved
SDD size :6936 after 40082
At refinement iteration 12 (INCLUDED_ONLY) 0/274 variables, 21/333 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/274 variables, 0/333 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 14 (OVERLAPS) 35/309 variables, 17/350 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/309 variables, 17/367 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/309 variables, 13/380 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/309 variables, 0/380 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 19/328 variables, 9/389 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/328 variables, 9/398 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/328 variables, 5/403 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/328 variables, 0/403 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 7/335 variables, 3/406 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/335 variables, 3/409 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/335 variables, 2/411 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/335 variables, 0/411 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 26 (OVERLAPS) 4/339 variables, 2/413 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/339 variables, 2/415 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 28 (INCLUDED_ONLY) 0/339 variables, 1/416 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/339 variables, 0/416 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 4/343 variables, 2/418 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 31 (INCLUDED_ONLY) 0/343 variables, 2/420 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 32 (INCLUDED_ONLY) 0/343 variables, 1/421 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 33 (INCLUDED_ONLY) 0/343 variables, 0/421 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 34 (OVERLAPS) 4/347 variables, 2/423 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 35 (INCLUDED_ONLY) 0/347 variables, 2/425 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 36 (INCLUDED_ONLY) 0/347 variables, 1/426 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 37 (INCLUDED_ONLY) 0/347 variables, 0/426 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 38 (OVERLAPS) 2/349 variables, 1/427 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 39 (INCLUDED_ONLY) 0/349 variables, 1/428 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 40 (INCLUDED_ONLY) 0/349 variables, 0/428 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 41 (OVERLAPS) 0/349 variables, 0/428 constraints. Problems are: Problem set: 2 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 349/349 variables, and 428 constraints, problems are : Problem set: 2 solved, 1 unsolved in 820 ms.
Refiners :[Domain max(s): 153/153 constraints, Positive P Invariants (semi-flows): 2/2 constraints, State Equation: 153/153 constraints, ReadFeed: 120/120 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 2 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Problem DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-08 is UNSAT
FORMULA DiscoveryGPU-PT-15a-ReachabilityCardinality-2025-08 TRUE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Int declared 3/349 variables, and 3 constraints, problems are : Problem set: 3 solved, 0 unsolved in 34 ms.
Refiners :[Domain max(s): 3/153 constraints, Positive P Invariants (semi-flows): 0/2 constraints, State Equation: 0/153 constraints, ReadFeed: 0/120 constraints, PredecessorRefiner: 0/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 967ms problems are : Problem set: 3 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
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 2761 ms.

BK_STOP 1748956446331

--------------------
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
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -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="DiscoveryGPU-PT-15a"
export BK_EXAMINATION="ReachabilityCardinality"
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 2-5832"
echo " Executing tool itstools"
echo " Input is DiscoveryGPU-PT-15a, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r058-smll-174854064700758"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DiscoveryGPU-PT-15a.tgz
mv DiscoveryGPU-PT-15a execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;