Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r142-tall-174876812600439.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-input.qcow2 backing_fmt=qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5832
Executing tool itstools
Input is Parking-PT-832, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r142-tall-174876812600439
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 688K
-rw-r--r-- 1 mcc users 6.7K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 70K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.4K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 97K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.4K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 4 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rw-r--r-- 1 mcc users 251K May 29 14:32 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-00
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-01
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-02
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-03
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-04
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-05
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-06
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-07
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-08
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-09
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-10
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-11
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-12
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-13
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-14
FORMULA_NAME Parking-PT-832-ReachabilityFireability-2025-15

=== Now, execution of the tool begins

BK_START 1748886652708

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Parking-PT-832
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202505121319
[2025-06-02 17:50:53] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2025-06-02 17:50:53] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 17:50:54] [INFO ] Load time of PNML (sax parser for PT used): 111 ms
[2025-06-02 17:50:54] [INFO ] Transformed 737 places.
[2025-06-02 17:50:54] [INFO ] Transformed 993 transitions.
[2025-06-02 17:50:54] [INFO ] Found NUPN structural information;
[2025-06-02 17:50:54] [INFO ] Parsed PT model containing 737 places and 993 transitions and 2993 arcs in 202 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 384 transitions
Reduce redundant transitions removed 384 transitions.
Reduction of identical properties reduced properties to check from 16 to 15
RANDOM walk for 40000 steps (200 resets) in 1795 ms. (22 steps per ms) remains 4/15 properties
FORMULA Parking-PT-832-ReachabilityFireability-2025-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2025-06-02 17:50:54] [INFO ] Flatten gal took : 209 ms
[2025-06-02 17:50:54] [INFO ] Flatten gal took : 94 ms
BEST_FIRST walk for 40004 steps (8 resets) in 657 ms. (60 steps per ms) remains 4/4 properties
[2025-06-02 17:50:54] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality11170201642983096845.gal : 32 ms
[2025-06-02 17:50:54] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11031710926725024121.prop : 3 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality11170201642983096845.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11031710926725024121.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...330
BEST_FIRST walk for 40004 steps (8 resets) in 571 ms. (69 steps per ms) remains 4/4 properties
Loading property file /tmp/ReachabilityCardinality11031710926725024121.prop.
BEST_FIRST walk for 40004 steps (8 resets) in 305 ms. (130 steps per ms) remains 4/4 properties
BEST_FIRST walk for 40004 steps (8 resets) in 1098 ms. (36 steps per ms) remains 4/4 properties
// Phase 1: matrix 609 rows 737 cols
SDD proceeding with computation,4 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,4 properties remain. new max is 8
SDD size :5 after 17
[2025-06-02 17:50:55] [INFO ] Computed 184 invariants in 22 ms
[2025-06-02 17:50:55] [INFO ] State equation strengthened by 152 read => feed constraints.
Excessive predecessor constraint size, skipping predecessor.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/156 variables, 156/156 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/156 variables, 4/160 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/156 variables, 0/160 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 536/692 variables, 172/332 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/692 variables, 536/868 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/692 variables, 0/868 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 45/737 variables, 8/876 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/737 variables, 45/921 constraints. Problems are: Problem set: 0 solved, 4 unsolved
SDD proceeding with computation,4 properties remain. new max is 16
SDD size :17 after 4097
At refinement iteration 8 (INCLUDED_ONLY) 0/737 variables, 0/921 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 609/1346 variables, 737/1658 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/1346 variables, 152/1810 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1346 variables, 0/1810 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (OVERLAPS) 0/1346 variables, 0/1810 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 1346/1346 variables, and 1810 constraints, problems are : Problem set: 0 solved, 4 unsolved in 2103 ms.
Refiners :[Domain max(s): 737/737 constraints, Positive P Invariants (semi-flows): 176/176 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 737/737 constraints, ReadFeed: 152/152 constraints, PredecessorRefiner: 4/1 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/156 variables, 156/156 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/156 variables, 4/160 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/156 variables, 0/160 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 536/692 variables, 172/332 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem Parking-PT-832-ReachabilityFireability-2025-05 is UNSAT
FORMULA Parking-PT-832-ReachabilityFireability-2025-05 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 4 (INCLUDED_ONLY) 0/692 variables, 536/868 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/692 variables, 0/868 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 45/737 variables, 8/876 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/737 variables, 45/921 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-02 17:50:58] [INFO ] Deduced a trap composed of 44 places in 80 ms of which 18 ms to minimize.
Starting Z3 with timeout 120.0 s and query timeout 12000.0 ms
[2025-06-02 17:50:58] [INFO ] Deduced a trap composed of 40 places in 53 ms of which 3 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/737 variables, 2/923 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/737 variables, 0/923 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 609/1346 variables, 737/1660 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/1346 variables, 152/1812 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1346 variables, 1/1813 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1346 variables, 0/1813 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 14 (OVERLAPS) 0/1346 variables, 0/1813 constraints. Problems are: Problem set: 1 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1346/1346 variables, and 1813 constraints, problems are : Problem set: 1 solved, 3 unsolved in 2372 ms.
Refiners :[Domain max(s): 737/737 constraints, Positive P Invariants (semi-flows): 176/176 constraints, Generalized P Invariants (flows): 8/8 constraints, State Equation: 737/737 constraints, ReadFeed: 152/152 constraints, PredecessorRefiner: 4/1 constraints, Known Traps: 2/2 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 4595ms problems are : Problem set: 1 solved, 3 unsolved
FORMULA Parking-PT-832-ReachabilityFireability-2025-14 TRUE TECHNIQUES PARIKH_WALK
FORMULA Parking-PT-832-ReachabilityFireability-2025-01 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 2 properties in 571 ms.
Support contains 2 out of 737 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 737/737 places, 609/609 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 16 transitions
Trivial Post-agglo rules discarded 16 transitions
Performed 16 trivial Post agglomeration. Transition count delta: 16
Iterating post reduction 0 with 16 rules applied. Total rules applied 16 place count 737 transition count 593
Reduce places removed 16 places and 0 transitions.
Iterating post reduction 1 with 16 rules applied. Total rules applied 32 place count 721 transition count 593
Performed 16 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 16 Pre rules applied. Total rules applied 32 place count 721 transition count 577
Deduced a syphon composed of 16 places in 2 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 2 with 32 rules applied. Total rules applied 64 place count 705 transition count 577
Discarding 8 places :
Symmetric choice reduction at 2 with 8 rule applications. Total rules 72 place count 697 transition count 569
Iterating global reduction 2 with 8 rules applied. Total rules applied 80 place count 697 transition count 569
Performed 24 Post agglomeration using F-continuation condition.Transition count delta: 24
Deduced a syphon composed of 24 places in 2 ms
Reduce places removed 24 places and 0 transitions.
Iterating global reduction 2 with 48 rules applied. Total rules applied 128 place count 673 transition count 545
Free-agglomeration rule applied 127 times.
Iterating global reduction 2 with 127 rules applied. Total rules applied 255 place count 673 transition count 418
Reduce places removed 127 places and 0 transitions.
Graph (complete) has 1107 edges and 546 vertex of which 77 are kept as prefixes of interest. Removing 469 places using SCC suffix rule.1 ms
Discarding 469 places :
Also discarding 350 output transitions
Drop transitions (Output transitions of discarded places.) removed 350 transitions
Iterating post reduction 2 with 128 rules applied. Total rules applied 383 place count 77 transition count 68
Drop transitions (Empty/Sink Transition effects.) removed 14 transitions
Reduce isomorphic transitions removed 14 transitions.
Iterating post reduction 3 with 14 rules applied. Total rules applied 397 place count 77 transition count 54
Applied a total of 397 rules in 210 ms. Remains 77 /737 variables (removed 660) and now considering 54/609 (removed 555) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 215 ms. Remains : 77/737 places, 54/609 transitions.
RANDOM walk for 40000 steps (917 resets) in 157 ms. (253 steps per ms) remains 1/1 properties
BEST_FIRST walk for 616 steps (0 resets) in 5 ms. (102 steps per ms) remains 0/1 properties
FORMULA Parking-PT-832-ReachabilityFireability-2025-06 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 7049 ms.

BK_STOP 1748886660955

--------------------
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
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -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="Parking-PT-832"
export BK_EXAMINATION="ReachabilityFireability"
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 2-5832"
echo " Executing tool itstools"
echo " Input is Parking-PT-832, 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 r142-tall-174876812600439"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Parking-PT-832.tgz
mv Parking-PT-832 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.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 ;