Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2026-input.r098-tall-177955695400159.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2026-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 2-5973
Executing tool itstools
Input is Diffusion2D-PT-D30N100, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r098-tall-177955695400159
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.4M
-rw-r--r-- 1 mcc users 7.7K Mar 6 16:07 CTLCardinality.txt
-rw-r--r-- 1 mcc users 68K Mar 6 16:07 CTLCardinality.xml
-rw-r--r-- 1 mcc users 9.4K Mar 6 16:06 CTLFireability.txt
-rw-r--r-- 1 mcc users 79K Mar 6 16:06 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.3K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.4K Mar 15 09:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Mar 15 09:06 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.9K Mar 15 09:07 LTLFireability.txt
-rw-r--r-- 1 mcc users 20K Mar 15 09:07 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.7K Mar 6 16:07 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 79K Mar 6 16:07 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.5K Mar 6 16:07 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 6 16:07 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Mar 15 09:07 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Mar 15 09:07 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 8 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 3.0M Mar 3 18:30 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 Diffusion2D-PT-D30N100-ReachabilityFireability-2024-00
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-01
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-02
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-03
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-04
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-05
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-06
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-07
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-08
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-09
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-10
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-11
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-12
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-13
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-14
FORMULA_NAME Diffusion2D-PT-D30N100-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779578379769

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Diffusion2D-PT-D30N100
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-23 23:19:40] [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]
[2026-05-23 23:19:40] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 23:19:41] [INFO ] Load time of PNML (sax parser for PT used): 265 ms
[2026-05-23 23:19:41] [INFO ] Transformed 900 places.
[2026-05-23 23:19:41] [INFO ] Transformed 6844 transitions.
[2026-05-23 23:19:41] [INFO ] Parsed PT model containing 900 places and 6844 transitions and 13688 arcs in 378 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 13 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40046 steps (8 resets) in 347 ms. (115 steps per ms) remains 15/16 properties
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 4003 steps (8 resets) in 54 ms. (72 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4003 steps (8 resets) in 55 ms. (71 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4003 steps (8 resets) in 31 ms. (125 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 26 ms. (148 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 62 ms. (63 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4003 steps (8 resets) in 20 ms. (190 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 69 ms. (57 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 14 ms. (266 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 26 ms. (148 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 35 ms. (111 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 25 ms. (154 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 52 ms. (75 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4004 steps (8 resets) in 23 ms. (166 steps per ms) remains 15/15 properties
BEST_FIRST walk for 4003 steps (8 resets) in 31 ms. (125 steps per ms) remains 15/15 properties
[2026-05-23 23:19:42] [INFO ] Flatten gal took : 306 ms
[2026-05-23 23:19:42] [INFO ] Flatten gal took : 188 ms
[2026-05-23 23:19:42] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality13282351678697787992.gal : 132 ms
[2026-05-23 23:19:42] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6587493560678513556.prop : 2 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality13282351678697787992.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6587493560678513556.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality6587493560678513556.prop.
Interrupted probabilistic random walk after 136493 steps, run timeout after 3001 ms. (steps per millisecond=45 ) properties seen :3 out of 15
Probabilistic random walk after 136493 steps, saw 110904 distinct states, run finished after 3014 ms. (steps per millisecond=45 ) properties seen :3
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-07 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-13770094177631082605.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-9665425477676572097.kers'
[2026-05-23 23:19:44] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-13770094177631082605.kers, --Pflows, --basisKERS=/tmp/petrispot-output-9665425477676572097.kers]
Culled 0 columns in 1 ms.
// Phase 1: matrix 6844 rows 900 cols 13688 entries
Finished phase 1 with 899 SingleSign rule and 0 generalized
[2026-05-23 23:19:44] [INFO ] Computed 1 invariants in 22 ms
Computed 1 P flows in 23 ms.
Exported basis to /tmp/petrispot-output-9665425477676572097.kers
Total runtime 27 ms.
Excessive predecessor constraint size, skipping predecessor.
Problem Diffusion2D-PT-D30N100-ReachabilityFireability-2024-02 is UNSAT
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-02 FALSE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/111 variables, 0/0 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 1 (OVERLAPS) 789/900 variables, 1/1 constraints. Problems are: Problem set: 1 solved, 11 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 0/1 constraints. Problems are: Problem set: 1 solved, 11 unsolved
SDD proceeding with computation,15 properties remain. new max is 4
SDD size :1 after 17
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-00 is true.
SDD proceeding with computation,14 properties remain. new max is 4
SDD size :17 after 32
SDD proceeding with computation,14 properties remain. new max is 8
SDD size :32 after 47
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-06 is true.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :47 after 57
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :57 after 65
Invariant property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-05 does not hold.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,12 properties remain. new max is 16
SDD size :65 after 82
SDD proceeding with computation,12 properties remain. new max is 32
SDD size :82 after 96
SDD proceeding with computation,12 properties remain. new max is 64
SDD size :96 after 117
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-08 is true.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-08 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,11 properties remain. new max is 64
SDD size :117 after 175
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-13 is true.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-13 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-03 is true.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-03 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :175 after 234
SDD proceeding with computation,9 properties remain. new max is 128
SDD size :234 after 293
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-07 is true.
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :293 after 407
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-15 is true.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-15 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-14 is true.
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-14 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property Diffusion2D-PT-D30N100-ReachabilityFireability-2024-01 does not hold.
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :407 after 13319
SDD proceeding with computation,5 properties remain. new max is 256
SDD size :13319 after 18008
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :18008 after 32354
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :32354 after 104026
At refinement iteration 3 (OVERLAPS) 6844/7744 variables, 900/901 constraints. Problems are: Problem set: 8 solved, 4 unsolved
SDD proceeding with computation,5 properties remain. new max is 2048
SDD size :104026 after 1.82536e+09
At refinement iteration 4 (INCLUDED_ONLY) 0/7744 variables, 0/901 constraints. Problems are: Problem set: 8 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 0/7744 variables, 0/901 constraints. Problems are: Problem set: 8 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 7744/7744 variables, and 901 constraints, problems are : Problem set: 8 solved, 4 unsolved in 2255 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 900/900 constraints, PredecessorRefiner: 12/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 8 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/25 variables, 0/0 constraints. Problems are: Problem set: 8 solved, 4 unsolved
At refinement iteration 1 (OVERLAPS) 875/900 variables, 1/1 constraints. Problems are: Problem set: 8 solved, 4 unsolved
SDD proceeding with computation,5 properties remain. new max is 4096
SDD size :1.82536e+09 after 8.51588e+14
At refinement iteration 2 (INCLUDED_ONLY) 0/900 variables, 0/1 constraints. Problems are: Problem set: 8 solved, 4 unsolved
At refinement iteration 3 (OVERLAPS) 6844/7744 variables, 900/901 constraints. Problems are: Problem set: 8 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/7744 variables, 3/904 constraints. Problems are: Problem set: 8 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/7744 variables, 0/904 constraints. Problems are: Problem set: 8 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 0/7744 variables, 0/904 constraints. Problems are: Problem set: 8 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Int declared 7744/7744 variables, and 904 constraints, problems are : Problem set: 8 solved, 4 unsolved in 3862 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 900/900 constraints, PredecessorRefiner: 4/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 6320ms problems are : Problem set: 8 solved, 4 unsolved
Fused 4 Parikh solutions to 3 different solutions.
Finished Parikh walk after 9820 steps, including 0 resets, run visited all 4 properties in 210 ms. (steps per millisecond=46 )
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-12 TRUE TECHNIQUES PARIKH_WALK
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-11 TRUE TECHNIQUES PARIKH_WALK
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-09 TRUE TECHNIQUES PARIKH_WALK
FORMULA Diffusion2D-PT-D30N100-ReachabilityFireability-2024-04 FALSE TECHNIQUES PARIKH_WALK
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Finished Parikh walk after 0 steps, including 0 resets, run visited all 0 properties in 1 ms. (steps per millisecond=0 )
Parikh walk visited 4 properties in 227 ms.
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 10496 ms.

BK_STOP 1779578391476

--------------------
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//
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="Diffusion2D-PT-D30N100"
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 2-5973"
echo " Executing tool itstools"
echo " Input is Diffusion2D-PT-D30N100, 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 r098-tall-177955695400159"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D30N100.tgz
mv Diffusion2D-PT-D30N100 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 ;