fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r391-oct2-167903715300439
Last Updated
May 14, 2023

About the Execution of LoLa+red for ShieldPPPs-PT-010A

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
542.960 12093.00 23549.00 47.90 FFTTFFFFTFFFTTTF normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r391-oct2-167903715300439.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool lolaxred
Input is ShieldPPPs-PT-010A, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r391-oct2-167903715300439
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 576K
-rw-r--r-- 1 mcc users 7.6K Feb 26 02:05 CTLCardinality.txt
-rw-r--r-- 1 mcc users 82K Feb 26 02:05 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.0K Feb 26 02:02 CTLFireability.txt
-rw-r--r-- 1 mcc users 43K Feb 26 02:02 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:41 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Feb 25 16:58 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Feb 25 16:58 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Feb 25 16:58 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Feb 25 16:58 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 26 02:10 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 120K Feb 26 02:10 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Feb 26 02:08 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 113K Feb 26 02:08 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:58 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:58 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 88K Mar 5 18:23 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 ShieldPPPs-PT-010A-ReachabilityFireability-00
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-01
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-02
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-03
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-04
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-05
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-06
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-07
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-08
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-09
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-10
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-11
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-12
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-13
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-14
FORMULA_NAME ShieldPPPs-PT-010A-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1679275364886

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=lolaxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ShieldPPPs-PT-010A
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-20 01:22:47] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-03-20 01:22:47] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 01:22:47] [INFO ] Load time of PNML (sax parser for PT used): 68 ms
[2023-03-20 01:22:47] [INFO ] Transformed 313 places.
[2023-03-20 01:22:47] [INFO ] Transformed 263 transitions.
[2023-03-20 01:22:47] [INFO ] Found NUPN structural information;
[2023-03-20 01:22:47] [INFO ] Parsed PT model containing 313 places and 263 transitions and 1006 arcs in 182 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 12 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 14 resets, run finished after 313 ms. (steps per millisecond=31 ) properties (out of 16) seen :14
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 74 ms. (steps per millisecond=135 ) properties (out of 2) seen :1
FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-04 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 71 ms. (steps per millisecond=140 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
// Phase 1: matrix 263 rows 313 cols
[2023-03-20 01:22:48] [INFO ] Computed 111 place invariants in 9 ms
[2023-03-20 01:22:48] [INFO ] After 283ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-20 01:22:48] [INFO ] [Nat]Absence check using 111 positive place invariants in 28 ms returned sat
[2023-03-20 01:22:48] [INFO ] After 203ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-20 01:22:48] [INFO ] After 376ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 164 ms.
[2023-03-20 01:22:49] [INFO ] After 687ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 13 ms.
Support contains 57 out of 313 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 313/313 places, 263/263 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 3 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 4 rules applied. Total rules applied 4 place count 311 transition count 261
Partial Free-agglomeration rule applied 63 times.
Drop transitions removed 63 transitions
Iterating global reduction 0 with 63 rules applied. Total rules applied 67 place count 311 transition count 261
Applied a total of 67 rules in 100 ms. Remains 311 /313 variables (removed 2) and now considering 261/263 (removed 2) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 100 ms. Remains : 311/313 places, 261/263 transitions.
Incomplete random walk after 10000 steps, including 8 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 887487 steps, run timeout after 3001 ms. (steps per millisecond=295 ) properties seen :{}
Probabilistic random walk after 887487 steps, saw 158265 distinct states, run finished after 3002 ms. (steps per millisecond=295 ) properties seen :0
Running SMT prover for 1 properties.
// Phase 1: matrix 261 rows 311 cols
[2023-03-20 01:22:52] [INFO ] Computed 111 place invariants in 4 ms
[2023-03-20 01:22:52] [INFO ] After 197ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-20 01:22:52] [INFO ] [Nat]Absence check using 110 positive place invariants in 13 ms returned sat
[2023-03-20 01:22:52] [INFO ] [Nat]Absence check using 110 positive and 1 generalized place invariants in 8 ms returned sat
[2023-03-20 01:22:53] [INFO ] After 749ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-20 01:22:53] [INFO ] After 936ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 189 ms.
[2023-03-20 01:22:53] [INFO ] After 1317ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 5 ms.
Support contains 57 out of 311 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 311/311 places, 261/261 transitions.
Applied a total of 0 rules in 23 ms. Remains 311 /311 variables (removed 0) and now considering 261/261 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 24 ms. Remains : 311/311 places, 261/261 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 311/311 places, 261/261 transitions.
Applied a total of 0 rules in 14 ms. Remains 311 /311 variables (removed 0) and now considering 261/261 (removed 0) transitions.
[2023-03-20 01:22:53] [INFO ] Invariant cache hit.
[2023-03-20 01:22:54] [INFO ] Implicit Places using invariants in 468 ms returned []
[2023-03-20 01:22:54] [INFO ] Invariant cache hit.
[2023-03-20 01:22:54] [INFO ] Implicit Places using invariants and state equation in 430 ms returned []
Implicit Place search using SMT with State Equation took 901 ms to find 0 implicit places.
[2023-03-20 01:22:54] [INFO ] Redundant transitions in 27 ms returned []
[2023-03-20 01:22:54] [INFO ] Invariant cache hit.
[2023-03-20 01:22:55] [INFO ] Dead Transitions using invariants and state equation in 207 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1158 ms. Remains : 311/311 places, 261/261 transitions.
Applied a total of 0 rules in 9 ms. Remains 311 /311 variables (removed 0) and now considering 261/261 (removed 0) transitions.
Running SMT prover for 1 properties.
[2023-03-20 01:22:55] [INFO ] Invariant cache hit.
[2023-03-20 01:22:55] [INFO ] After 101ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-20 01:22:55] [INFO ] [Nat]Absence check using 110 positive place invariants in 100 ms returned sat
[2023-03-20 01:22:55] [INFO ] [Nat]Absence check using 110 positive and 1 generalized place invariants in 0 ms returned sat
[2023-03-20 01:22:55] [INFO ] After 216ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-20 01:22:55] [INFO ] Deduced a trap composed of 9 places in 131 ms of which 1 ms to minimize.
[2023-03-20 01:22:55] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 216 ms
[2023-03-20 01:22:56] [INFO ] After 612ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 148 ms.
[2023-03-20 01:22:56] [INFO ] After 997ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2023-03-20 01:22:56] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityFireability.sr.xml took 17 ms.
[2023-03-20 01:22:56] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 311 places, 261 transitions and 1176 arcs took 4 ms.
[2023-03-20 01:22:56] [INFO ] Flatten gal took : 74 ms
Total runtime 9334 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT ShieldPPPs-PT-010A
BK_EXAMINATION: ReachabilityFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/370
ReachabilityFireability

FORMULA ShieldPPPs-PT-010A-ReachabilityFireability-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1679275376979

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

+ 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//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/370/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/370/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/370/ReachabilityFireability.xml
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 8 (type EXCL) for 0 ShieldPPPs-PT-010A-ReachabilityFireability-06
lola: time limit : 3600 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 4 (type FNDP) for 0 ShieldPPPs-PT-010A-ReachabilityFireability-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 5 (type EQUN) for 0 ShieldPPPs-PT-010A-ReachabilityFireability-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 7 (type SRCH) for 0 ShieldPPPs-PT-010A-ReachabilityFireability-06
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 7 (type SRCH) for ShieldPPPs-PT-010A-ReachabilityFireability-06
lola: result : true
lola: markings : 44
lola: fired transitions : 43
lola: time used : 0.000000
lola: memory pages used : 1
lola: CANCELED task # 4 (type FNDP) for ShieldPPPs-PT-010A-ReachabilityFireability-06 (obsolete)
lola: CANCELED task # 5 (type EQUN) for ShieldPPPs-PT-010A-ReachabilityFireability-06 (obsolete)
lola: CANCELED task # 8 (type EXCL) for ShieldPPPs-PT-010A-ReachabilityFireability-06 (obsolete)
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
ShieldPPPs-PT-010A-ReachabilityFireability-06: AG false tandem / insertion


Time elapsed: 0 secs. Pages in use: 2

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="ShieldPPPs-PT-010A"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="lolaxred"
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 2-5348"
echo " Executing tool lolaxred"
echo " Input is ShieldPPPs-PT-010A, 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 r391-oct2-167903715300439"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldPPPs-PT-010A.tgz
mv ShieldPPPs-PT-010A 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 ;