fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r027-smll-171620168000074
Last Updated
July 7, 2024

About the Execution of LoLA for AutoFlight-PT-02a

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
98.296 624.00 131.00 0.00 FTFFFFFFTTFTTTFT 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.r027-smll-171620168000074.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 lola
Input is AutoFlight-PT-02a, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r027-smll-171620168000074
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 496K
-rw-r--r-- 1 mcc users 7.0K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 79K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K 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 6.6K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.2K Apr 22 14:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Apr 22 14:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Apr 22 14:28 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 22 14:28 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Apr 12 22:03 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 125K Apr 12 22:03 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.6K Apr 12 22:01 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 90K Apr 12 22:01 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 22 14:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 16K 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 AutoFlight-PT-02a-CTLFireability-2024-00
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-01
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-02
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-03
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-04
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-05
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-06
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-07
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-08
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-09
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-10
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2024-11
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2023-12
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2023-13
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2023-14
FORMULA_NAME AutoFlight-PT-02a-CTLFireability-2023-15

=== Now, execution of the tool begins

BK_START 1717015030611

FORMULA AutoFlight-PT-02a-CTLFireability-2024-01 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-11 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2023-15 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2023-13 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-07 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-04 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-09 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-02 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-05 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2023-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-08 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-06 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2023-12 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
FORMULA AutoFlight-PT-02a-CTLFireability-2024-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT
[lola] FINAL RESULTS
[lola]  FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
[lola] AutoFlight-PT-02a-CTLFireability-2024-00: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-01: CTL true CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-02: EFAG false tscc_search
[lola] AutoFlight-PT-02a-CTLFireability-2024-03: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-04: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-05: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-06: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-07: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-08: CTL true CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-09: AGEF true tscc_search
[lola] AutoFlight-PT-02a-CTLFireability-2024-10: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2024-11: EF true findpath
[lola] AutoFlight-PT-02a-CTLFireability-2023-12: CTL true CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2023-13: CTL true CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2023-14: CTL false CTL model checker
[lola] AutoFlight-PT-02a-CTLFireability-2023-15: CTL true CTL model checker
[lola]
[lola] Time elapsed: 1 secs. Pages in use: 1

BK_STOP 1717015031235

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

[lola][I] LoLA will run for 3600 seconds at most (--timelimit)
[lola][W] unknown unit in memory specification: using default
[lola][I] MEM LIMIT 5
[lola][I] NET
[lola][I] reading net from model.pnml
[lola][I] input: PNML file (--pnmlnet)
[lola][I] reading pnml
[lola][I] PNML file contains place/transition net
[lola][I] closed net file model.pnml
[lola][I] finished parsing
[lola][I] Reading formula.
[lola][I] Using XML format (--xmlformula)
[lola][I] reading XML formula
[lola][I] reading formula from CTLFireability.xml
[lola][I] Rule S: 0 transitions removed,0 places removed
[lola][I] LAUNCH task # 4 (type EXCL) for 3 AutoFlight-PT-02a-CTLFireability-2024-01
[lola][I] time limit : 163 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 4 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-01
[lola][I] result : true
[lola][I] markings : 93
[lola][I] fired transitions : 498
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 1 (type EXCL) for 0 AutoFlight-PT-02a-CTLFireability-2024-00
[lola][I] time limit : 211 sec
[lola][I] memory limit: 2000 pages
[lola][I] LAUNCH task # 52 (type EQUN) for 6 AutoFlight-PT-02a-CTLFireability-2024-02
[lola][I] time limit : 32000000 sec
[lola][I] memory limit: 5 pages
[lola][I] LAUNCH task # 54 (type EQUN) for 6 AutoFlight-PT-02a-CTLFireability-2024-02
[lola][I] time limit : 32000000 sec
[lola][I] memory limit: 5 pages
[lola][I] LAUNCH task # 58 (type EQUN) for 27 AutoFlight-PT-02a-CTLFireability-2024-09
[lola][I] time limit : 32000000 sec
[lola][I] memory limit: 5 pages
[lola][I] FINISHED task # 52 (type EQUN) for AutoFlight-PT-02a-CTLFireability-2024-02
[lola][I] result : true
[lola][I] LAUNCH task # 61 (type FNDP) for 33 AutoFlight-PT-02a-CTLFireability-2024-11
[lola][I] time limit : 32000000 sec
[lola][I] memory limit: 5 pages
[lola][I] FINISHED task # 1 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-00
[lola][I] result : false
[lola][I] markings : 6949
[lola][I] fired transitions : 70021
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 46 (type EXCL) for 45 AutoFlight-PT-02a-CTLFireability-2023-15
[lola][I] time limit : 257 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 54 (type EQUN) for AutoFlight-PT-02a-CTLFireability-2024-02
[lola][I] result : unknown
[lola][I] LAUNCH task # 60 (type EQUN) for 27 AutoFlight-PT-02a-CTLFireability-2024-09
[lola][I] time limit : 32000000 sec
[lola][I] memory limit: 5 pages
[lola][I] FINISHED task # 61 (type FNDP) for AutoFlight-PT-02a-CTLFireability-2024-11
[lola][I] result : true
[lola][I] tried executions : 1
[lola][I] time used : 0
[lola][I] memory pages used : 0
[lola][I] FINISHED task # 46 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2023-15
[lola][I] result : true
[lola][I] markings : 1104
[lola][I] fired transitions : 5372
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 40 (type EXCL) for 39 AutoFlight-PT-02a-CTLFireability-2023-13
[lola][I] time limit : 299 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 40 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2023-13
[lola][I] result : true
[lola][I] markings : 1
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 22 (type EXCL) for 21 AutoFlight-PT-02a-CTLFireability-2024-07
[lola][I] time limit : 327 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 58 (type EQUN) for AutoFlight-PT-02a-CTLFireability-2024-09
[lola][I] result : true
[lola][I] FINISHED task # 60 (type EQUN) for AutoFlight-PT-02a-CTLFireability-2024-09
[lola][I] result : unknown
[lola][I] FINISHED task # 22 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-07
[lola][I] result : false
[lola][I] markings : 6949
[lola][I] fired transitions : 67550
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 13 (type EXCL) for 12 AutoFlight-PT-02a-CTLFireability-2024-04
[lola][I] time limit : 359 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 13 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-04
[lola][I] result : false
[lola][I] markings : 3714
[lola][I] fired transitions : 48660
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 55 (type EXCL) for 27 AutoFlight-PT-02a-CTLFireability-2024-09
[lola][I] time limit : 399 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 55 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-09
[lola][I] result : true
[lola][I] markings : 561
[lola][I] fired transitions : 1717
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 49 (type EXCL) for 6 AutoFlight-PT-02a-CTLFireability-2024-02
[lola][I] time limit : 449 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 49 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-02
[lola][I] result : true
[lola][I] markings : 401
[lola][I] fired transitions : 1153
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 16 (type EXCL) for 15 AutoFlight-PT-02a-CTLFireability-2024-05
[lola][I] time limit : 514 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 16 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-05
[lola][I] result : false
[lola][I] markings : 42
[lola][I] fired transitions : 120
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 43 (type EXCL) for 42 AutoFlight-PT-02a-CTLFireability-2023-14
[lola][I] time limit : 599 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 43 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2023-14
[lola][I] result : false
[lola][I] markings : 1
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 25 (type EXCL) for 24 AutoFlight-PT-02a-CTLFireability-2024-08
[lola][I] time limit : 719 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 25 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-08
[lola][I] result : true
[lola][I] markings : 853
[lola][I] fired transitions : 5156
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 19 (type EXCL) for 18 AutoFlight-PT-02a-CTLFireability-2024-06
[lola][I] time limit : 899 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 19 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-06
[lola][I] result : false
[lola][I] markings : 401
[lola][I] fired transitions : 2615
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 37 (type EXCL) for 36 AutoFlight-PT-02a-CTLFireability-2023-12
[lola][I] time limit : 1199 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 37 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2023-12
[lola][I] result : true
[lola][I] markings : 55
[lola][I] fired transitions : 112
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 10 (type EXCL) for 9 AutoFlight-PT-02a-CTLFireability-2024-03
[lola][I] time limit : 1799 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 10 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-03
[lola][I] result : false
[lola][I] markings : 16
[lola][I] fired transitions : 77
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] LAUNCH task # 31 (type EXCL) for 30 AutoFlight-PT-02a-CTLFireability-2024-10
[lola][I] time limit : 3599 sec
[lola][I] memory limit: 2000 pages
[lola][I] FINISHED task # 31 (type EXCL) for AutoFlight-PT-02a-CTLFireability-2024-10
[lola][I] result : false
[lola][I] markings : 488
[lola][I] fired transitions : 2832
[lola][I] time used : 0
[lola][I] memory pages used : 1
[lola][I] Portfolio finished: no open formulas

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="AutoFlight-PT-02a"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="lola"
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 lola"
echo " Input is AutoFlight-PT-02a, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r027-smll-171620168000074"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-02a.tgz
mv AutoFlight-PT-02a execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;