fond
Model Checking Contest 2021
11th edition, Paris, France, June 23, 2021
Execution of r223-tall-162098215700004
Last Updated
Jun 28, 2021

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
505.315 9577.00 13932.00 215.10 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/mcc2021-input.r223-tall-162098215700004.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2021-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
..................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is SharedMemory-COL-000005, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r223-tall-162098215700004
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 360K
-rw-r--r-- 1 mcc users 16K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 139K May 10 09:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 8.8K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 60K May 10 09:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.3K Mar 28 16:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 21K Mar 28 16:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Mar 28 16:35 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Mar 28 16:35 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Mar 27 11:14 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Mar 27 11:14 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 3.5K Mar 25 14:32 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 25 14:32 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 22 08:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 22 08:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 5 16:52 equiv_pt
-rw-r--r-- 1 mcc users 7 May 5 16:52 instance
-rw-r--r-- 1 mcc users 5 May 5 16:52 iscolored
-rw-r--r-- 1 mcc users 12K May 5 16:52 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 Liveness

=== Now, execution of the tool begins

BK_START 1621065541243

Running Version 0
[2021-05-15 07:59:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -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]
[2021-05-15 07:59:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-15 07:59:03] [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.
[2021-05-15 07:59:03] [WARNING] Using fallBack plugin, rng conformance not checked
[2021-05-15 07:59:03] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 518 ms
[2021-05-15 07:59:03] [INFO ] Imported 6 HL places and 5 HL transitions for a total of 46 PT places and 85.0 transition bindings in 16 ms.
[2021-05-15 07:59:03] [INFO ] Built PT skeleton of HLPN with 6 places and 5 transitions in 3 ms.
[2021-05-15 07:59:03] [INFO ] Skeletonized HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1000_4108467217396346416.dot
[2021-05-15 07:59:04] [INFO ] Unfolded HLPN to a Petri net with 46 places and 60 transitions in 4 ms.
[2021-05-15 07:59:04] [INFO ] Unfolded HLPN properties in 0 ms.
[2021-05-15 07:59:04] [INFO ] Unfolded HLPN to a Petri net with 46 places and 60 transitions in 10 ms.
[2021-05-15 07:59:04] [INFO ] Unfolded HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1001_11038930412547602949.dot
[2021-05-15 07:59:04] [INFO ] Built PT skeleton of HLPN with 6 places and 5 transitions in 0 ms.
[2021-05-15 07:59:04] [INFO ] Skeletonized HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1002_12793222125892108617.dot
Prefix of Interest using HLPN skeleton for deadlock discarded 0 places and 0 transitions.
[2021-05-15 07:59:04] [INFO ] Unfolded HLPN to a Petri net with 46 places and 60 transitions in 2 ms.
[2021-05-15 07:59:04] [INFO ] Unfolded HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1003_8271458425427538370.dot
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 5 places and 5 transitions.
Built sparse matrix representations for Structural reductions in 0 ms.11465KB memory used
Starting structural reductions, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 50 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
Finished structural reductions, in 1 iterations. Remains : 41/41 places, 55/55 transitions.
Starting structural reductions, iteration 0 : 41/41 places, 55/55 transitions.
Applied a total of 0 rules in 3 ms. Remains 41 /41 variables (removed 0) and now considering 55/55 (removed 0) transitions.
// Phase 1: matrix 55 rows 41 cols
[2021-05-15 07:59:04] [INFO ] Computed 11 place invariants in 5 ms
[2021-05-15 07:59:04] [INFO ] Implicit Places using invariants in 152 ms returned []
// Phase 1: matrix 55 rows 41 cols
[2021-05-15 07:59:04] [INFO ] Computed 11 place invariants in 1 ms
[2021-05-15 07:59:04] [INFO ] Implicit Places using invariants and state equation in 63 ms returned []
Implicit Place search using SMT with State Equation took 264 ms to find 0 implicit places.
[2021-05-15 07:59:04] [INFO ] Redundant transitions in 0 ms returned []
// Phase 1: matrix 55 rows 41 cols
[2021-05-15 07:59:04] [INFO ] Computed 11 place invariants in 2 ms
[2021-05-15 07:59:04] [INFO ] Dead Transitions using invariants and state equation in 53 ms returned []
Finished structural reductions, in 1 iterations. Remains : 41/41 places, 55/55 transitions.
Random walk for 1250000 steps, including 0 resets, run took 2956 ms (no deadlock found). (steps per millisecond=422 )
Random directed walk for 1250006 steps, including 0 resets, run took 2371 ms (no deadlock found). (steps per millisecond=527 )
// Phase 1: matrix 55 rows 41 cols
[2021-05-15 07:59:09] [INFO ] Computed 11 place invariants in 4 ms
[2021-05-15 07:59:09] [INFO ] [Real]Absence check using 11 positive place invariants in 2 ms returned unsat
[2021-05-15 07:59:09] [INFO ] Unfolded HLPN to a Petri net with 46 places and 60 transitions in 1 ms.
[2021-05-15 07:59:09] [INFO ] Unfolded HLPN properties in 0 ms.
Successfully produced net in file /tmp/petri1004_16078658535471709097.dot
[2021-05-15 07:59:09] [INFO ] Initial state test concluded for 2 properties.
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 5 places and 5 transitions.
Finished random walk after 8 steps, including 0 resets, run visited all 3 properties in 2 ms. (steps per millisecond=4 )
Able to resolve query QuasiLiveness after proving 5 properties.
Deduced a syphon composed of 5 places in 0 ms
Reduce places removed 5 places and 5 transitions.
[2021-05-15 07:59:09] [INFO ] Flatten gal took : 25 ms
[2021-05-15 07:59:09] [INFO ] Flatten gal took : 8 ms
[2021-05-15 07:59:10] [INFO ] Time to serialize gal into /tmp/CTLFireability5623989365956266680.gal : 4 ms
[2021-05-15 07:59:10] [INFO ] Time to serialize properties into /tmp/CTLFireability9846360503041662375.ctl : 1 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/CTLFireability5623989365956266680.gal, -t, CGAL, -ctl, /tmp/CTLFireability9846360503041662375.ctl, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/CTLFireability5623989365956266680.gal -t CGAL -ctl /tmp/CTLFireability9846360503041662375.ctl --gen-order FOLLOW
No direction supplied, using forward translation only.
Parsed 5 CTL formulae.
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
reachable,1863,0.016196,4632,2,321,5,1230,6,0,222,868,0


Converting to forward existential form...Done !
original formula: AG(EF((((((Active_1>=1)||(Active_2>=1))||(Active_3>=1))||(Active_4>=1))||(Active_0>=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U (((((Active_1>=1)||(Active_2>=1))||(Active_3>=1))||(Active_4>=1))||(Active_0>=1)))))] = FALSE
Reverse transition relation is exact ! Faster fixpoint algorithm enabled.
(forward)formula 0,1,0.046615,6136,1,0,6,7767,14,0,1079,3304,5
Formula is TRUE !

***************************************

original formula: AG(EF((((((Active_1>=1)||(Active_2>=1))||(Active_3>=1))||(Active_4>=1))||(Active_0>=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U (((((Active_1>=1)||(Active_2>=1))||(Active_3>=1))||(Active_4>=1))||(Active_0>=1)))))] = FALSE
(forward)formula 1,1,0.048208,6400,1,0,6,7767,14,0,1079,3304,5
Formula is TRUE !

***************************************

original formula: AG(EF(((((((((((((((((((((Ext_Mem_Acc_1>=1)||(Ext_Mem_Acc_2>=1))||(Ext_Mem_Acc_3>=1))||(Ext_Mem_Acc_4>=1))||(Ext_Mem_Acc_5>=1))||(Ext_Mem_Acc_7>=1))||(Ext_Mem_Acc_8>=1))||(Ext_Mem_Acc_9>=1))||(Ext_Mem_Acc_10>=1))||(Ext_Mem_Acc_11>=1))||(Ext_Mem_Acc_13>=1))||(Ext_Mem_Acc_14>=1))||(Ext_Mem_Acc_15>=1))||(Ext_Mem_Acc_16>=1))||(Ext_Mem_Acc_17>=1))||(Ext_Mem_Acc_19>=1))||(Ext_Mem_Acc_21>=1))||(Ext_Mem_Acc_20>=1))||(Ext_Mem_Acc_23>=1))||(Ext_Mem_Acc_22>=1))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((((((((((((((((Ext_Mem_Acc_1>=1)||(Ext_Mem_Acc_2>=1))||(Ext_Mem_Acc_3>=1))||(Ext_Mem_Acc_4>=1))||(Ext_Mem_Acc_5>=1))||(Ext_Mem_Acc_7>=1))||(Ext_Mem_Acc_8>=1))||(Ext_Mem_Acc_9>=1))||(Ext_Mem_Acc_10>=1))||(Ext_Mem_Acc_11>=1))||(Ext_Mem_Acc_13>=1))||(Ext_Mem_Acc_14>=1))||(Ext_Mem_Acc_15>=1))||(Ext_Mem_Acc_16>=1))||(Ext_Mem_Acc_17>=1))||(Ext_Mem_Acc_19>=1))||(Ext_Mem_Acc_21>=1))||(Ext_Mem_Acc_20>=1))||(Ext_Mem_Acc_23>=1))||(Ext_Mem_Acc_22>=1)))))] = FALSE
(forward)formula 2,1,0.053063,6400,1,0,7,7895,15,0,1098,3383,8
Formula is TRUE !

***************************************

original formula: AG(EF(((((((OwnMemAcc_0>=1)&&(Memory_0>=1))||((OwnMemAcc_1>=1)&&(Memory_1>=1)))||((OwnMemAcc_2>=1)&&(Memory_2>=1)))||((OwnMemAcc_3>=1)&&(Memory_3>=1)))||((OwnMemAcc_4>=1)&&(Memory_4>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((OwnMemAcc_0>=1)&&(Memory_0>=1))||((OwnMemAcc_1>=1)&&(Memory_1>=1)))||((OwnMemAcc_2>=1)&&(Memory_2>=1)))||((OwnMemAcc_3>=1)&&(Memory_3>=1)))||((OwnMemAcc_4>=1)&&(Memory_4>=1))))))] = FALSE
(forward)formula 3,1,0.058848,6664,1,0,8,8937,16,0,1107,4151,11
Formula is TRUE !

***************************************

original formula: AG(EF(((((((((((((((((((((((Queue_1>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1))||(((Queue_0>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_0>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))||(((Queue_0>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_1>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_1>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_1>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_0>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))))
=> equivalent forward existential formula: [(FwdU(Init,TRUE) * !(E(TRUE U ((((((((((((((((((((((Queue_1>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1))||(((Queue_0>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_0>=1)&&(Memory_1>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))||(((Queue_0>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_1>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_3>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_1>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1)))||(((Queue_2>=1)&&(Memory_3>=1))&&(Ext_Bus_0>=1)))||(((Queue_1>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_2>=1))&&(Ext_Bus_0>=1)))||(((Queue_0>=1)&&(Memory_4>=1))&&(Ext_Bus_0>=1)))||(((Queue_4>=1)&&(Memory_0>=1))&&(Ext_Bus_0>=1))))))] = FALSE
(forward)formula 4,1,0.071361,6928,1,0,9,9015,17,0,1145,4351,14
Formula is TRUE !

***************************************

Able to resolve query Liveness after proving 5 properties.
FORMULA Liveness TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL

BK_STOP 1621065550820

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ Liveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution Liveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination Liveness -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=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="Liveness"
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 SharedMemory-COL-000005, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r223-tall-162098215700004"
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 [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property Liveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;