About the Execution of LTSMin+red for Anderson-PT-07
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
560.231 | 3582896.00 | 14264418.00 | 430.20 | FFFTTTFFTFFFTTTF | normal |
Execution Chart
We display below the execution chart for this examination (boot time has been removed).
Trace from the execution
Formatting '/data/fkordon/mcc2023-input.r521-tall-167987246100031.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
..........................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool ltsminxred
Input is Anderson-PT-07, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r521-tall-167987246100031
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 924K
-rw-r--r-- 1 mcc users 7.6K Mar 23 15:19 CTLCardinality.txt
-rw-r--r-- 1 mcc users 80K Mar 23 15:19 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.6K Mar 23 15:19 CTLFireability.txt
-rw-r--r-- 1 mcc users 55K Mar 23 15:19 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 23 07:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Mar 23 07:06 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K Mar 23 07:06 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Mar 23 07:06 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Mar 26 22:42 NewModel
-rw-r--r-- 1 mcc users 11K Mar 23 15:20 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 107K Mar 23 15:20 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 15K Mar 23 15:20 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 95K Mar 23 15:20 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 23 07:06 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 23 07:06 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 26 22:42 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 26 22:42 instance
-rw-r--r-- 1 mcc users 6 Mar 26 22:42 iscolored
-rw-r--r-- 1 mcc users 461K Mar 31 16:48 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 Anderson-PT-07-ReachabilityFireability-00
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-01
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-02
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-03
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-04
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-05
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-06
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-07
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-08
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-09
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-10
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-11
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-12
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-13
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-14
FORMULA_NAME Anderson-PT-07-ReachabilityFireability-15
=== Now, execution of the tool begins
BK_START 1680857759636
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=ltsminxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Anderson-PT-07
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202304061127
[2023-04-07 08:56:01] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-04-07 08:56:01] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-04-07 08:56:01] [INFO ] Load time of PNML (sax parser for PT used): 113 ms
[2023-04-07 08:56:01] [INFO ] Transformed 309 places.
[2023-04-07 08:56:01] [INFO ] Transformed 917 transitions.
[2023-04-07 08:56:01] [INFO ] Found NUPN structural information;
[2023-04-07 08:56:01] [INFO ] Parsed PT model containing 309 places and 917 transitions and 3500 arcs in 207 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 2 resets, run finished after 437 ms. (steps per millisecond=22 ) properties (out of 16) seen :4
FORMULA Anderson-PT-07-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Anderson-PT-07-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Anderson-PT-07-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Anderson-PT-07-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 169 ms. (steps per millisecond=59 ) properties (out of 12) seen :1
FORMULA Anderson-PT-07-ReachabilityFireability-00 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 42 ms. (steps per millisecond=238 ) properties (out of 11) seen :1
FORMULA Anderson-PT-07-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 59 ms. (steps per millisecond=169 ) properties (out of 10) seen :3
FORMULA Anderson-PT-07-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Anderson-PT-07-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Anderson-PT-07-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 49 ms. (steps per millisecond=204 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 89 ms. (steps per millisecond=112 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 57 ms. (steps per millisecond=175 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 37 ms. (steps per millisecond=270 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 110 ms. (steps per millisecond=90 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 7) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 52 ms. (steps per millisecond=192 ) properties (out of 7) seen :0
Running SMT prover for 7 properties.
// Phase 1: matrix 917 rows 309 cols
[2023-04-07 08:56:02] [INFO ] Computed 17 invariants in 40 ms
[2023-04-07 08:56:03] [INFO ] After 379ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:7
[2023-04-07 08:56:03] [INFO ] [Nat]Absence check using 8 positive place invariants in 73 ms returned sat
[2023-04-07 08:56:03] [INFO ] [Nat]Absence check using 8 positive and 9 generalized place invariants in 64 ms returned sat
[2023-04-07 08:56:05] [INFO ] After 1373ms SMT Verify possible using state equation in natural domain returned unsat :5 sat :2
[2023-04-07 08:56:05] [INFO ] State equation strengthened by 42 read => feed constraints.
[2023-04-07 08:56:06] [INFO ] After 851ms SMT Verify possible using 42 Read/Feed constraints in natural domain returned unsat :5 sat :2
[2023-04-07 08:56:06] [INFO ] After 1658ms SMT Verify possible using trap constraints in natural domain returned unsat :5 sat :2
Attempting to minimize the solution found.
Minimization took 694 ms.
[2023-04-07 08:56:07] [INFO ] After 4083ms SMT Verify possible using all constraints in natural domain returned unsat :5 sat :2
FORMULA Anderson-PT-07-ReachabilityFireability-15 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Anderson-PT-07-ReachabilityFireability-12 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Anderson-PT-07-ReachabilityFireability-11 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Anderson-PT-07-ReachabilityFireability-09 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Anderson-PT-07-ReachabilityFireability-04 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 7 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 7 ms.
Support contains 23 out of 309 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 309/309 places, 917/917 transitions.
Performed 39 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 39 Pre rules applied. Total rules applied 0 place count 309 transition count 878
Deduced a syphon composed of 39 places in 3 ms
Reduce places removed 39 places and 0 transitions.
Iterating global reduction 0 with 78 rules applied. Total rules applied 78 place count 270 transition count 878
Discarding 70 places :
Symmetric choice reduction at 0 with 70 rule applications. Total rules 148 place count 200 transition count 448
Iterating global reduction 0 with 70 rules applied. Total rules applied 218 place count 200 transition count 448
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 12 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 0 with 4 rules applied. Total rules applied 222 place count 198 transition count 446
Applied a total of 222 rules in 125 ms. Remains 198 /309 variables (removed 111) and now considering 446/917 (removed 471) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 125 ms. Remains : 198/309 places, 446/917 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 84 ms. (steps per millisecond=119 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 41 ms. (steps per millisecond=243 ) properties (out of 2) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 2) seen :0
Finished probabilistic random walk after 409225 steps, run visited all 2 properties in 2200 ms. (steps per millisecond=186 )
Probabilistic random walk after 409225 steps, saw 230674 distinct states, run finished after 2201 ms. (steps per millisecond=185 ) properties seen :2
FORMULA Anderson-PT-07-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Anderson-PT-07-ReachabilityFireability-06 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
Parikh walk visited 0 properties in 0 ms.
All properties solved without resorting to model-checking.
Total runtime 8919 ms.
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --inv-bin-par --invariant=/tmp/454/inv_0_ --invariant=/tmp/454/inv_1_ --invariant=/tmp/454/inv_2_ --invariant=/tmp/454/inv_3_ --invariant=/tmp/454/inv_4_ --invariant=/tmp/454/inv_5_ --invariant=/tmp/454/inv_6_ --invariant=/tmp/454/inv_7_ --invariant=/tmp/454/inv_8_ --invariant=/tmp/454/inv_9_ --invariant=/tmp/454/inv_10_ --invariant=/tmp/454/inv_11_ --invariant=/tmp/454/inv_12_ --invariant=/tmp/454/inv_13_ --invariant=/tmp/454/inv_14_ --invariant=/tmp/454/inv_15_ --inv-par
TIME LIMIT: Killed by timeout after 3570 seconds
MemTotal: 16393216 kB
MemFree: 15717620 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16104456 kB
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-00
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-01
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-02
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-03
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-04
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-05
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-06
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-07
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-08
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-09
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-10
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-11
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-12
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-13
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-14
Could not compute solution for formula : Anderson-PT-07-ReachabilityFireability-15
BK_STOP 1680861342532
--------------------
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_1.0.0.202304061127.jar
+ VERSION=202304061127
+ echo 'Running Version 202304061127'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML
mcc2023
rfs formula name Anderson-PT-07-ReachabilityFireability-00
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_0_
rfs formula name Anderson-PT-07-ReachabilityFireability-01
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_1_
rfs formula name Anderson-PT-07-ReachabilityFireability-02
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_2_
rfs formula name Anderson-PT-07-ReachabilityFireability-03
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_3_
rfs formula name Anderson-PT-07-ReachabilityFireability-04
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_4_
rfs formula name Anderson-PT-07-ReachabilityFireability-05
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_5_
rfs formula name Anderson-PT-07-ReachabilityFireability-06
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_6_
rfs formula name Anderson-PT-07-ReachabilityFireability-07
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_7_
rfs formula name Anderson-PT-07-ReachabilityFireability-08
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_8_
rfs formula name Anderson-PT-07-ReachabilityFireability-09
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_9_
rfs formula name Anderson-PT-07-ReachabilityFireability-10
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_10_
rfs formula name Anderson-PT-07-ReachabilityFireability-11
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_11_
rfs formula name Anderson-PT-07-ReachabilityFireability-12
rfs formula type AG
rfs formula formula --invariant=/tmp/454/inv_12_
rfs formula name Anderson-PT-07-ReachabilityFireability-13
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_13_
rfs formula name Anderson-PT-07-ReachabilityFireability-14
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_14_
rfs formula name Anderson-PT-07-ReachabilityFireability-15
rfs formula type EF
rfs formula formula --invariant=/tmp/454/inv_15_
pnml2lts-sym: Exploration order is bfs-prev
pnml2lts-sym: Saturation strategy is sat
pnml2lts-sym: Guided search strategy is unguided
pnml2lts-sym: Attractor strategy is default
pnml2lts-sym: opening model.pnml
pnml2lts-sym: Edge label is id
Warning: program compiled against libxml 210 using older 209
pnml2lts-sym: Petri net has 309 places, 917 transitions and 3500 arcs
pnml2lts-sym: Petri net Anderson-PT-07 analyzed
pnml2lts-sym: There are safe places
pnml2lts-sym: Loading Petri net took 0.010 real 0.000 user 0.000 sys
pnml2lts-sym: Initializing regrouping layer
pnml2lts-sym: Regroup specification: bs,w2W,ru,hf
pnml2lts-sym: Regroup Boost's Sloan
pnml2lts-sym: Regroup over-approximate must-write to may-write
pnml2lts-sym: Regroup Row sUbsume
pnml2lts-sym: Reqroup Horizontal Flip
pnml2lts-sym: Regrouping: 917->917 groups
pnml2lts-sym: Regrouping took 0.440 real 0.440 user 0.000 sys
pnml2lts-sym: state vector length is 309; there are 917 groups
pnml2lts-sym: Creating a multi-core ListDD domain.
pnml2lts-sym: Sylvan allocates 15.000 GB virtual memory for nodes table and operation cache.
pnml2lts-sym: Initial nodes table and operation cache requires 60.00 MB.
pnml2lts-sym: Using GBgetTransitionsShortR2W as next-state function
pnml2lts-sym: got initial state
Killing (15) : 460
Killing (9) : 460
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="Anderson-PT-07"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="ltsminxred"
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 2-5348"
echo " Executing tool ltsminxred"
echo " Input is Anderson-PT-07, 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 r521-tall-167987246100031"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Anderson-PT-07.tgz
mv Anderson-PT-07 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.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -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 '
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 ;