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.r510-tall-171654365200362.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 ltsminxred
Input is NoC3x3-PT-2B, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r510-tall-171654365200362
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1000K
-rw-r--r-- 1 mcc users 8.5K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 97K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.4K May 19 07:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 19 16:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K May 19 07:24 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 19 18:42 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.0K Apr 12 06:56 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 69K Apr 12 06:56 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 12K Apr 12 06:55 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 102K Apr 12 06:55 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 23 07:41 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 23 07:41 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 3 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 548K 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

FORMULA_NAME QuasiLiveness

=== Now, execution of the tool begins

BK_START 1717232082785

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=QuasiLiveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=NoC3x3-PT-2B
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 08:54:44] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -timeout, 180, -rebuildPNML]
[2024-06-01 08:54:44] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 08:54:44] [INFO ] Load time of PNML (sax parser for PT used): 177 ms
[2024-06-01 08:54:44] [INFO ] Transformed 2003 places.
[2024-06-01 08:54:44] [INFO ] Transformed 2292 transitions.
[2024-06-01 08:54:44] [INFO ] Found NUPN structural information;
[2024-06-01 08:54:44] [INFO ] Parsed PT model containing 2003 places and 2292 transitions and 5835 arcs in 343 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 2003/2003 places, 2292/2292 transitions.
Graph (trivial) has 1634 edges and 2003 vertex of which 72 / 2003 are part of one of the 9 SCC in 11 ms
Free SCC test removed 63 places
Ensure Unique test removed 63 transitions
Reduce isomorphic transitions removed 63 transitions.
Discarding 9 places :
Implicit places reduction removed 9 places
Drop transitions (Trivial Post-Agglo cleanup.) removed 405 transitions
Trivial Post-agglo rules discarded 405 transitions
Performed 405 trivial Post agglomeration. Transition count delta: 405
Iterating post reduction 0 with 414 rules applied. Total rules applied 415 place count 1931 transition count 1824
Reduce places removed 405 places and 0 transitions.
Iterating post reduction 1 with 405 rules applied. Total rules applied 820 place count 1526 transition count 1824
Performed 24 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 24 Pre rules applied. Total rules applied 820 place count 1526 transition count 1800
Deduced a syphon composed of 24 places in 21 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 2 with 48 rules applied. Total rules applied 868 place count 1502 transition count 1800
Performed 799 Post agglomeration using F-continuation condition.Transition count delta: 799
Deduced a syphon composed of 799 places in 1 ms
Reduce places removed 799 places and 0 transitions.
Iterating global reduction 2 with 1598 rules applied. Total rules applied 2466 place count 703 transition count 1001
Performed 36 Post agglomeration using F-continuation condition.Transition count delta: -186
Deduced a syphon composed of 36 places in 2 ms
Reduce places removed 36 places and 0 transitions.
Iterating global reduction 2 with 72 rules applied. Total rules applied 2538 place count 667 transition count 1187
Applied a total of 2538 rules in 409 ms. Remains 667 /2003 variables (removed 1336) and now considering 1187/2292 (removed 1105) transitions.
[2024-06-01 08:54:45] [INFO ] Flow matrix only has 1099 transitions (discarded 88 similar events)
// Phase 1: matrix 1099 rows 667 cols
[2024-06-01 08:54:45] [INFO ] Computed 58 invariants in 29 ms
[2024-06-01 08:54:45] [INFO ] Implicit Places using invariants in 777 ms returned [11, 51, 115, 157, 238, 401, 503, 546, 643]
Discarding 9 places :
Implicit Place search using SMT only with invariants took 813 ms to find 9 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 658/2003 places, 1187/2292 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 4 transitions
Trivial Post-agglo rules discarded 4 transitions
Performed 4 trivial Post agglomeration. Transition count delta: 4
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 658 transition count 1183
Reduce places removed 4 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Iterating post reduction 1 with 8 rules applied. Total rules applied 12 place count 654 transition count 1179
Performed 20 Post agglomeration using F-continuation condition.Transition count delta: 20
Deduced a syphon composed of 20 places in 7 ms
Reduce places removed 20 places and 0 transitions.
Iterating global reduction 2 with 40 rules applied. Total rules applied 52 place count 634 transition count 1159
Ensure Unique test removed 50 transitions
Reduce isomorphic transitions removed 50 transitions.
Iterating post reduction 2 with 50 rules applied. Total rules applied 102 place count 634 transition count 1109
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -17
Deduced a syphon composed of 1 places in 1 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 104 place count 633 transition count 1126
Applied a total of 104 rules in 38 ms. Remains 633 /658 variables (removed 25) and now considering 1126/1187 (removed 61) transitions.
[2024-06-01 08:54:45] [INFO ] Flow matrix only has 1038 transitions (discarded 88 similar events)
// Phase 1: matrix 1038 rows 633 cols
[2024-06-01 08:54:45] [INFO ] Computed 49 invariants in 7 ms
[2024-06-01 08:54:46] [INFO ] Implicit Places using invariants in 754 ms returned []
[2024-06-01 08:54:46] [INFO ] Flow matrix only has 1038 transitions (discarded 88 similar events)
[2024-06-01 08:54:46] [INFO ] Invariant cache hit.
[2024-06-01 08:54:47] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-06-01 08:54:48] [INFO ] Implicit Places using invariants and state equation in 2060 ms returned [5, 10, 32, 34, 38, 40, 45, 47, 102, 105, 107, 128, 131, 138, 140, 144, 146, 191, 193, 195, 197, 201, 203, 205, 210, 212, 214, 219, 221, 223, 361, 363, 365, 368, 370, 372, 374, 377, 379, 381, 474, 479, 497, 499, 501, 503, 506, 508, 510, 515, 517, 519, 602, 605, 609, 611]
Discarding 56 places :
Implicit Place search using SMT with State Equation took 2828 ms to find 56 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 577/2003 places, 1126/2292 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 193 transitions
Trivial Post-agglo rules discarded 193 transitions
Performed 193 trivial Post agglomeration. Transition count delta: 193
Iterating post reduction 0 with 193 rules applied. Total rules applied 193 place count 577 transition count 933
Reduce places removed 193 places and 0 transitions.
Iterating post reduction 1 with 193 rules applied. Total rules applied 386 place count 384 transition count 933
Applied a total of 386 rules in 40 ms. Remains 384 /577 variables (removed 193) and now considering 933/1126 (removed 193) transitions.
[2024-06-01 08:54:48] [INFO ] Flow matrix only has 845 transitions (discarded 88 similar events)
// Phase 1: matrix 845 rows 384 cols
[2024-06-01 08:54:48] [INFO ] Computed 33 invariants in 7 ms
[2024-06-01 08:54:49] [INFO ] Implicit Places using invariants in 312 ms returned []
[2024-06-01 08:54:49] [INFO ] Flow matrix only has 845 transitions (discarded 88 similar events)
[2024-06-01 08:54:49] [INFO ] Invariant cache hit.
[2024-06-01 08:54:49] [INFO ] State equation strengthened by 98 read => feed constraints.
[2024-06-01 08:54:49] [INFO ] Implicit Places using invariants and state equation in 913 ms returned []
Implicit Place search using SMT with State Equation took 1232 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 3 : 384/2003 places, 933/2292 transitions.
Finished structural reductions in LIVENESS mode , in 3 iterations and 5381 ms. Remains : 384/2003 places, 933/2292 transitions.
Discarding 553 transitions out of 933. Remains 380
Initial state reduction rules removed 1 formulas.
RANDOM walk for 40000 steps (525 resets) in 2585 ms. (15 steps per ms) remains 29/379 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 24 ms. (160 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 34 ms. (114 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 17 ms. (222 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 18 ms. (210 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4003 steps (8 resets) in 10 ms. (363 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 20 ms. (190 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4003 steps (8 resets) in 14 ms. (266 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 10 ms. (364 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 20 ms. (190 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 15 ms. (250 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 9 ms. (400 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 28 ms. (138 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 11 ms. (333 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 12 ms. (308 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 10 ms. (364 steps per ms) remains 29/29 properties
BEST_FIRST walk for 4004 steps (8 resets) in 9 ms. (400 steps per ms) remains 29/29 properties
[2024-06-01 08:54:51] [INFO ] Flow matrix only has 845 transitions (discarded 88 similar events)
[2024-06-01 08:54:51] [INFO ] Invariant cache hit.
[2024-06-01 08:54:51] [INFO ] State equation strengthened by 98 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/31 variables, 31/31 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/31 variables, 0/31 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 2 (OVERLAPS) 79/110 variables, 9/40 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/110 variables, 79/119 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/110 variables, 0/119 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 5 (OVERLAPS) 177/287 variables, 24/143 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/287 variables, 177/320 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/287 variables, 0/320 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 8 (OVERLAPS) 791/1078 variables, 287/607 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/1078 variables, 44/651 constraints. Problems are: Problem set: 0 solved, 29 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1078 variables, 0/651 constraints. Problems are: Problem set: 0 solved, 29 unsolved
Problem qltransition_540 is UNSAT
FORMULA QuasiLiveness FALSE TECHNIQUES RANDOM_WALK SMT_REFINEMENT TOPOLOGICAL INITIAL_STATE
SMT process timed out in 1563ms, After SMT, problems are : Problem set: 0 solved, 29 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 31 out of 384 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 384/384 places, 933/933 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 9 transitions
Reduce isomorphic transitions removed 9 transitions.
Iterating post reduction 0 with 9 rules applied. Total rules applied 9 place count 384 transition count 924
Discarding 97 places :
Symmetric choice reduction at 1 with 97 rule applications. Total rules 106 place count 287 transition count 650
Iterating global reduction 1 with 97 rules applied. Total rules applied 203 place count 287 transition count 650
Ensure Unique test removed 15 transitions
Reduce isomorphic transitions removed 15 transitions.
Iterating post reduction 1 with 15 rules applied. Total rules applied 218 place count 287 transition count 635
Discarding 25 places :
Symmetric choice reduction at 2 with 25 rule applications. Total rules 243 place count 262 transition count 585
Iterating global reduction 2 with 25 rules applied. Total rules applied 268 place count 262 transition count 585
Ensure Unique test removed 34 transitions
Reduce isomorphic transitions removed 34 transitions.
Iterating post reduction 2 with 34 rules applied. Total rules applied 302 place count 262 transition count 551
Performed 5 Post agglomeration using F-continuation condition.Transition count delta: -39
Deduced a syphon composed of 5 places in 1 ms
Reduce places removed 5 places and 0 transitions.
Iterating global reduction 3 with 10 rules applied. Total rules applied 312 place count 257 transition count 590
Free-agglomeration rule applied 27 times.
Iterating global reduction 3 with 27 rules applied. Total rules applied 339 place count 257 transition count 563
Reduce places removed 27 places and 0 transitions.
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Iterating post reduction 3 with 34 rules applied. Total rules applied 373 place count 230 transition count 556
Free-agglomeration rule (complex) applied 44 times.
Iterating global reduction 4 with 44 rules applied. Total rules applied 417 place count 230 transition count 527
Reduce places removed 44 places and 0 transitions.
Ensure Unique test removed 17 transitions
Reduce isomorphic transitions removed 17 transitions.
Iterating post reduction 4 with 61 rules applied. Total rules applied 478 place count 186 transition count 510
Partial Free-agglomeration rule applied 8 times.
Drop transitions (Partial Free agglomeration) removed 8 transitions
Iterating global reduction 5 with 8 rules applied. Total rules applied 486 place count 186 transition count 510
Applied a total of 486 rules in 170 ms. Remains 186 /384 variables (removed 198) and now considering 510/933 (removed 423) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 171 ms. Remains : 186/384 places, 510/933 transitions.
Total runtime 8701 ms.
ITS solved all properties within timeout

BK_STOP 1717232093290

--------------------
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_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination QuasiLiveness -timeout 180 -rebuildPNML

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="NoC3x3-PT-2B"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="ltsminxred"
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 2-5568"
echo " Executing tool ltsminxred"
echo " Input is NoC3x3-PT-2B, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r510-tall-171654365200362"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/NoC3x3-PT-2B.tgz
mv NoC3x3-PT-2B execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;