fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r334-tall-171679080900702
Last Updated
July 7, 2024

About the Execution of ITS-Tools for SharedMemory-COL-000005

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
282.455 3087.00 7574.00 38.00 FTFTTTTTFTFTTFFF normal

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.r334-tall-171679080900702.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 SharedMemory-COL-000005, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r334-tall-171679080900702
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 452K
-rw-r--r-- 1 mcc users 7.1K Apr 12 15:13 CTLCardinality.txt
-rw-r--r-- 1 mcc users 66K Apr 12 15:13 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Apr 12 15:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 56K Apr 12 15:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 18 16:43 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.9K Apr 23 07:51 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 23 07:51 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Apr 23 07:51 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Apr 23 07:51 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 12 15:22 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 122K Apr 12 15:22 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.1K Apr 12 15:19 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 55K Apr 12 15:19 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Apr 23 07:51 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Apr 23 07:51 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_pt
-rw-r--r-- 1 mcc users 7 May 18 16:43 instance
-rw-r--r-- 1 mcc users 5 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 12K May 18 16:43 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 SharedMemory-COL-000005-ReachabilityCardinality-2024-00
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-01
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-02
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-03
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-04
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-05
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-06
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-07
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-08
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-09
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-10
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-11
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-12
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-13
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-14
FORMULA_NAME SharedMemory-COL-000005-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1716866123169

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=SharedMemory-COL-000005
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is COL
ReachabilityCardinality COL
Running Version 202405141337
[2024-05-28 03:15:24] [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]
[2024-05-28 03:15:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-28 03:15:24] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2024-05-28 03:15:24] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-05-28 03:15:24] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 581 ms
[2024-05-28 03:15:25] [INFO ] Imported 6 HL places and 5 HL transitions for a total of 46 PT places and 85.0 transition bindings in 15 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 29 ms.
Working with output stream class java.io.PrintStream
[2024-05-28 03:15:25] [INFO ] Built PT skeleton of HLPN with 6 places and 5 transitions 16 arcs in 3 ms.
[2024-05-28 03:15:25] [INFO ] Skeletonized 16 HLPN properties in 1 ms.
Remains 16 properties that can be checked using skeleton over-approximation.
Initial state reduction rules removed 11 formulas.
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-09 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Computed a total of 0 stabilizing places and 0 stable transitions
[2024-05-28 03:15:25] [INFO ] Flatten gal took : 47 ms
[2024-05-28 03:15:25] [INFO ] Flatten gal took : 2 ms
[2024-05-28 03:15:25] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality14069460090147708854.gal : 4 ms
[2024-05-28 03:15:25] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality14413305104377431280.prop : 6 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/ReachabilityCardinality14069460090147708854.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality14413305104377431280.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
Loading property file /tmp/ReachabilityCardinality14413305104377431280.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :27 after 32
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,36,0.021595,3952,2,42,8,227,11,0,216,176,0
Total reachable state count : 36

Verifying 5 reachability properties.
Reachability property SharedMemory-COL-000005-ReachabilityCardinality-2024-00 does not hold.
No reachable states exhibit your property : SharedMemory-COL-000005-ReachabilityCardinality-2024-00

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SharedMemory-COL-000005-ReachabilityCardinality-2024-00,0,0.022817,3952,1,0,8,227,11,0,240,176,0
Invariant property SharedMemory-COL-000005-ReachabilityCardinality-2024-01 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SharedMemory-COL-000005-ReachabilityCardinality-2024-01,0,0.022938,3952,1,0,8,227,11,0,240,176,0
Reachability property SharedMemory-COL-000005-ReachabilityCardinality-2024-02 does not hold.
No reachable states exhibit your property : SharedMemory-COL-000005-ReachabilityCardinality-2024-02

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SharedMemory-COL-000005-ReachabilityCardinality-2024-02,0,0.023915,3952,1,0,8,227,11,0,241,176,0
Reachability property SharedMemory-COL-000005-ReachabilityCardinality-2024-10 does not hold.
No reachable states exhibit your property : SharedMemory-COL-000005-ReachabilityCardinality-2024-10

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SharedMemory-COL-000005-ReachabilityCardinality-2024-10,0,0.0252,3952,1,0,8,227,11,0,242,176,0
Reachability property SharedMemory-COL-000005-ReachabilityCardinality-2024-14 does not hold.
No reachable states exhibit your property : SharedMemory-COL-000005-ReachabilityCardinality-2024-14

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
SharedMemory-COL-000005-ReachabilityCardinality-2024-14,0,0.028414,3952,1,0,8,227,11,0,256,176,0
RANDOM walk for 40000 steps (8 resets) in 1422 ms. (28 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 619 ms. (64 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40000 steps (8 resets) in 338 ms. (117 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40002 steps (8 resets) in 186 ms. (213 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 132 ms. (300 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40001 steps (8 resets) in 195 ms. (204 steps per ms) remains 5/5 properties
Probably explored full state space saw : 36 states, properties seen :0
Probabilistic random walk after 141 steps, saw 36 distinct states, run finished after 13 ms. (steps per millisecond=10 ) properties seen :0
Explored full state space saw : 36 states, properties seen :0
Exhaustive walk after 141 steps, saw 36 distinct states, run finished after 3 ms. (steps per millisecond=47 ) properties seen :0
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
[2024-05-28 03:15:26] [INFO ] Flatten gal took : 3 ms
[2024-05-28 03:15:26] [INFO ] Flatten gal took : 6 ms
RANDOM walk for 0 steps (0 resets) in 5 ms. (0 steps per ms) remains 0/0 properties
[2024-05-28 03:15:26] [INFO ] Flatten gal took : 1 ms
[2024-05-28 03:15:26] [INFO ] Flatten gal took : 1 ms
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
[2024-05-28 03:15:26] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality9723032628507939319.gal : 65 ms
[2024-05-28 03:15:26] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17234683576863924126.prop : 0 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/ReachabilityCardinality9723032628507939319.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality17234683576863924126.prop' '--nowitness' '--gen-order' 'FOLLOW'

ITS runner timed out or was interrupted.
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 ...329
Loading property file /tmp/ReachabilityCardinality17234683576863924126.prop.
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 3 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,5,0.003781,3504,2,23,5,53,6,0,32,24,0
Total reachable state count : 5

ITS tools runner thread asked to quit. Dying gracefully.
java.io.IOException: Stream closed
at java.base/java.io.BufferedInputStream.getBufIfOpen(BufferedInputStream.java:168)
at java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:334)
at java.base/sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:270)
at java.base/sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:313)
at java.base/sun.nio.cs.StreamDecoder.read(StreamDecoder.java:188)
at java.base/java.io.InputStreamReader.read(InputStreamReader.java:177)
at java.base/java.io.BufferedReader.fill(BufferedReader.java:162)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:329)
at java.base/java.io.BufferedReader.readLine(BufferedReader.java:396)
at fr.lip6.move.gal.application.runner.its.ITSRunner$ITSInterpreter.run(ITSRunner.java:211)
at java.base/java.lang.Thread.run(Thread.java:840)
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-00 FALSE TECHNIQUES CPN_APPROX
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-01 TRUE TECHNIQUES CPN_APPROX
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-02 FALSE TECHNIQUES CPN_APPROX
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-10 FALSE TECHNIQUES CPN_APPROX
FORMULA SharedMemory-COL-000005-ReachabilityCardinality-2024-14 FALSE TECHNIQUES CPN_APPROX
Domain [P(5), P(5)] of place Ext_Mem_Acc breaks symmetries in sort P
[2024-05-28 03:15:26] [INFO ] Unfolded HLPN to a Petri net with 46 places and 60 transitions 220 arcs in 16 ms.
[2024-05-28 03:15:26] [INFO ] Unfolded 5 HLPN properties in 1 ms.
Deduced a syphon composed of 5 places in 1 ms
Reduce places removed 5 places and 5 transitions.
All properties solved without resorting to model-checking.
Total runtime 1929 ms.

BK_STOP 1716866126256

--------------------
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
+ 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 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="SharedMemory-COL-000005"
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 2-5568"
echo " Executing tool itstools"
echo " Input is SharedMemory-COL-000005, 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 r334-tall-171679080900702"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SharedMemory-COL-000005.tgz
mv SharedMemory-COL-000005 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 ;