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.r197-tall-171640624800052.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 gold2023
Input is FlexibleBarrier-PT-14a, examination is LTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r197-tall-171640624800052
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 620K
-rw-r--r-- 1 mcc users 9.2K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 107K 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 51K 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 6.5K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.7K Apr 22 14:45 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Apr 22 14:45 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Apr 22 14:45 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 22 14:45 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.3K Apr 13 10:36 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 98K Apr 13 10:36 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Apr 13 10:25 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 53K Apr 13 10:25 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 22 14:45 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 22 14:45 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 169K 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 FlexibleBarrier-PT-14a-LTLCardinality-00
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-01
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-02
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-03
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-04
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-05
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-06
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-07
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-08
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-09
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-10
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-11
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-12
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-13
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-14
FORMULA_NAME FlexibleBarrier-PT-14a-LTLCardinality-15

=== Now, execution of the tool begins

BK_START 1716496000041

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=gold2023
BK_EXAMINATION=LTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=FlexibleBarrier-PT-14a
Not applying reductions.
Model is PT
LTLCardinality PT
Running Version 202304061127
[2024-05-23 20:26:41] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-05-23 20:26:41] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-23 20:26:41] [INFO ] Load time of PNML (sax parser for PT used): 69 ms
[2024-05-23 20:26:41] [INFO ] Transformed 171 places.
[2024-05-23 20:26:41] [INFO ] Transformed 578 transitions.
[2024-05-23 20:26:41] [INFO ] Found NUPN structural information;
[2024-05-23 20:26:41] [INFO ] Parsed PT model containing 171 places and 578 transitions and 2719 arcs in 134 ms.
Parsed 16 properties from file /home/mcc/execution/LTLCardinality.xml in 7 ms.
Working with output stream class java.io.PrintStream
Initial state reduction rules removed 4 formulas.
Ensure Unique test removed 170 transitions
Reduce redundant transitions removed 170 transitions.
Initial state reduction rules removed 1 formulas.
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-11 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-03 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 9 out of 171 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 171/171 places, 408/408 transitions.
Drop transitions removed 14 transitions
Redundant transition composition rules discarded 14 transitions
Iterating global reduction 0 with 14 rules applied. Total rules applied 14 place count 171 transition count 394
Applied a total of 14 rules in 30 ms. Remains 171 /171 variables (removed 0) and now considering 394/408 (removed 14) transitions.
// Phase 1: matrix 394 rows 171 cols
[2024-05-23 20:26:41] [INFO ] Computed 16 invariants in 17 ms
[2024-05-23 20:26:42] [INFO ] Implicit Places using invariants in 478 ms returned []
[2024-05-23 20:26:42] [INFO ] Invariant cache hit.
[2024-05-23 20:26:42] [INFO ] State equation strengthened by 253 read => feed constraints.
[2024-05-23 20:26:42] [INFO ] Implicit Places using invariants and state equation in 495 ms returned [169]
Discarding 1 places :
Implicit Place search using SMT with State Equation took 1003 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 170/171 places, 394/408 transitions.
Applied a total of 0 rules in 10 ms. Remains 170 /170 variables (removed 0) and now considering 394/394 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 1043 ms. Remains : 170/171 places, 394/408 transitions.
Support contains 9 out of 170 places after structural reductions.
[2024-05-23 20:26:42] [INFO ] Flatten gal took : 47 ms
[2024-05-23 20:26:42] [INFO ] Flatten gal took : 20 ms
[2024-05-23 20:26:42] [INFO ] Input system was already deterministic with 394 transitions.
Finished random walk after 318 steps, including 0 resets, run visited all 5 properties in 26 ms. (steps per millisecond=12 )
Parikh walk visited 0 properties in 0 ms.
Computed a total of 2 stabilizing places and 1 stable transitions
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F(p0)))'
Support contains 2 out of 170 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 170/170 places, 394/394 transitions.
Applied a total of 0 rules in 7 ms. Remains 170 /170 variables (removed 0) and now considering 394/394 (removed 0) transitions.
// Phase 1: matrix 394 rows 170 cols
[2024-05-23 20:26:43] [INFO ] Computed 15 invariants in 4 ms
[2024-05-23 20:26:43] [INFO ] Implicit Places using invariants in 89 ms returned [169]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 91 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 169/170 places, 394/394 transitions.
Applied a total of 0 rules in 3 ms. Remains 169 /169 variables (removed 0) and now considering 394/394 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 101 ms. Remains : 169/170 places, 394/394 transitions.
ANTLR Tool version 4.9.3 used for code generation does not match the current runtime version 4.7.2ANTLR Runtime version 4.9.3 used for parser compilation does not match the current runtime version 4.7.2ANTLR Tool version 4.9.3 used for code generation does not match the current runtime version 4.7.2ANTLR Runtime version 4.9.3 used for parser compilation does not match the current runtime version 4.7.2Stuttering acceptance computed with spot in 165 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-14a-LTLCardinality-04 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 1}]], initial=0, aps=[p0:(OR (EQ s24 0) (EQ s81 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, very-weak, weak, inherently-weak], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 7718 reset in 652 ms.
Stack based approach found an accepted trace after 22 steps with 1 reset with depth 7 and stack size 7 in 1 ms.
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-04 FALSE TECHNIQUES STACK_TEST
Treatment of property FlexibleBarrier-PT-14a-LTLCardinality-04 finished in 963 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(X(F((p0||((p0 U X(p1))&&(p0||G((p0 U p2))))))))'
Support contains 5 out of 170 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 170/170 places, 394/394 transitions.
Applied a total of 0 rules in 4 ms. Remains 170 /170 variables (removed 0) and now considering 394/394 (removed 0) transitions.
[2024-05-23 20:26:44] [INFO ] Invariant cache hit.
[2024-05-23 20:26:44] [INFO ] Implicit Places using invariants in 63 ms returned []
[2024-05-23 20:26:44] [INFO ] Invariant cache hit.
[2024-05-23 20:26:44] [INFO ] State equation strengthened by 70 read => feed constraints.
[2024-05-23 20:26:44] [INFO ] Implicit Places using invariants and state equation in 143 ms returned []
Implicit Place search using SMT with State Equation took 210 ms to find 0 implicit places.
[2024-05-23 20:26:44] [INFO ] Invariant cache hit.
[2024-05-23 20:26:44] [INFO ] Dead Transitions using invariants and state equation in 139 ms found 0 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 357 ms. Remains : 170/170 places, 394/394 transitions.
Stuttering acceptance computed with spot in 171 ms :[(OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (OR (AND (NOT p0) (NOT p2)) (AND (NOT p0) (NOT p1))), (AND (NOT p0) (NOT p1)), (AND (NOT p0) (NOT p2))]
Running random walk in product with property : FlexibleBarrier-PT-14a-LTLCardinality-14 automaton TGBA Formula[mat=[[{ cond=true, acceptance={} source=0 dest: 1}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=1 dest: 1}, { cond=(AND (NOT p0) p2), acceptance={0} source=1 dest: 2}, { cond=(AND (NOT p0) p2), acceptance={} source=1 dest: 3}], [{ cond=(AND (NOT p0) (NOT p2) (NOT p1)), acceptance={0} source=2 dest: 1}, { cond=(AND (NOT p0) p2 (NOT p1)), acceptance={0} source=2 dest: 2}, { cond=(AND (NOT p0) p2 (NOT p1)), acceptance={} source=2 dest: 3}], [{ cond=(AND (NOT p0) (NOT p2)), acceptance={0} source=3 dest: 1}, { cond=(AND (NOT p0) p2), acceptance={} source=3 dest: 3}]], initial=0, aps=[p0:(EQ s32 1), p2:(OR (EQ s114 0) (EQ s154 1)), p1:(OR (EQ s169 0) (EQ s58 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, no-univ-branch, stutter-sensitive], stateDesc=[null, null, null, null][false, false, false, false]]
Product exploration explored 100000 steps with 598 reset in 435 ms.
Stack based approach found an accepted trace after 1671 steps with 8 reset with depth 233 and stack size 231 in 7 ms.
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-14 FALSE TECHNIQUES STACK_TEST
Treatment of property FlexibleBarrier-PT-14a-LTLCardinality-14 finished in 1008 ms.
Running Spot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.ltl.spot.binaries_1.0.0.202304061127/bin/ltl2tgba-linux64' '--check=stutter' '--hoaf=tv' '-f' '!(F((p0&&X(p0))))'
Support contains 2 out of 170 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 170/170 places, 394/394 transitions.
Applied a total of 0 rules in 4 ms. Remains 170 /170 variables (removed 0) and now considering 394/394 (removed 0) transitions.
[2024-05-23 20:26:45] [INFO ] Invariant cache hit.
[2024-05-23 20:26:45] [INFO ] Implicit Places using invariants in 74 ms returned [169]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 76 ms to find 1 implicit places.
Starting structural reductions in LTL mode, iteration 1 : 169/170 places, 394/394 transitions.
Applied a total of 0 rules in 2 ms. Remains 169 /169 variables (removed 0) and now considering 394/394 (removed 0) transitions.
Finished structural reductions in LTL mode , in 2 iterations and 82 ms. Remains : 169/170 places, 394/394 transitions.
Stuttering acceptance computed with spot in 59 ms :[(NOT p0), (NOT p0)]
Running random walk in product with property : FlexibleBarrier-PT-14a-LTLCardinality-15 automaton TGBA Formula[mat=[[{ cond=(NOT p0), acceptance={0} source=0 dest: 0}, { cond=p0, acceptance={0} source=0 dest: 1}], [{ cond=(NOT p0), acceptance={0} source=1 dest: 0}]], initial=0, aps=[p0:(OR (EQ s1 0) (EQ s53 1))], nbAcceptance=1, properties=[trans-labels, explicit-labels, trans-acc, colored, deterministic, no-univ-branch, unambiguous, semi-deterministic, stutter-sensitive, weak, inherently-weak], stateDesc=[null, null][false, false]]
Product exploration explored 100000 steps with 50000 reset in 381 ms.
Product exploration explored 100000 steps with 50000 reset in 377 ms.
Computed a total of 1 stabilizing places and 1 stable transitions
Computed a total of 1 stabilizing places and 1 stable transitions
Knowledge obtained : [p0, (X p0), (X (X p0))]
False Knowledge obtained : []
Property proved to be true thanks to conjunction of knowledge (Minato strategy)
Knowledge based reduction with 3 factoid took 92 ms. Reduced automaton from 2 states, 3 edges and 1 AP (stutter sensitive) to 1 states, 0 edges and 0 AP (stutter insensitive).
FORMULA FlexibleBarrier-PT-14a-LTLCardinality-15 TRUE TECHNIQUES KNOWLEDGE
Treatment of property FlexibleBarrier-PT-14a-LTLCardinality-15 finished in 1018 ms.
All properties solved by simple procedures.
Total runtime 4712 ms.

BK_STOP 1716496007235

--------------------
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
+ [[ LTLCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution LTLCardinality -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
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination LTLCardinality -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="FlexibleBarrier-PT-14a"
export BK_EXAMINATION="LTLCardinality"
export BK_TOOL="gold2023"
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 gold2023"
echo " Input is FlexibleBarrier-PT-14a, examination is LTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r197-tall-171640624800052"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/FlexibleBarrier-PT-14a.tgz
mv FlexibleBarrier-PT-14a execution
cd execution
if [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "UpperBounds" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] || [ "LTLCardinality" = "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 [ "LTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLCardinality" != "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 "LTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLCardinality.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 '' LTLCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLCardinality" = "ReachabilityDeadlock" ] || [ "LTLCardinality" = "QuasiLiveness" ] || [ "LTLCardinality" = "StableMarking" ] || [ "LTLCardinality" = "Liveness" ] || [ "LTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLCardinality"
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 ;