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.r066-tall-177946967700343.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 CO4-PT-08, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r066-tall-177946967700343
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 568K
-rw-r--r-- 1 mcc users 6.6K Mar 6 13:25 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K Mar 6 13:25 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9K Mar 6 13:25 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Mar 6 13:25 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:30 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K Mar 15 08:30 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 08:30 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Mar 15 08:30 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 6 13:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K Mar 6 13:25 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Mar 6 13:25 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 61K Mar 6 13:25 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Mar 15 08:30 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Mar 15 08:30 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 138K 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 CO4-PT-08-ReachabilityFireability-2024-00
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-01
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-02
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-03
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-04
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-05
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-06
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-07
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-08
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-09
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-10
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-11
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-12
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-13
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-14
FORMULA_NAME CO4-PT-08-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1779521974059

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-08
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202604301425
[2026-05-23 07:39:35] [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 07:39:35] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-23 07:39:35] [INFO ] Load time of PNML (sax parser for PT used): 88 ms
[2026-05-23 07:39:35] [INFO ] Transformed 467 places.
[2026-05-23 07:39:35] [INFO ] Transformed 600 transitions.
[2026-05-23 07:39:35] [INFO ] Found NUPN structural information;
[2026-05-23 07:39:35] [INFO ] Parsed PT model containing 467 places and 600 transitions and 1596 arcs in 177 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 11 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 108 places in 6 ms
Reduce places removed 108 places and 155 transitions.
FORMULA CO4-PT-08-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-08-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-08-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (159 resets) in 1224 ms. (32 steps per ms) remains 12/13 properties
FORMULA CO4-PT-08-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2026-05-23 07:39:35] [INFO ] Flatten gal took : 133 ms
[2026-05-23 07:39:36] [INFO ] Flatten gal took : 82 ms
[2026-05-23 07:39:36] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2105955486175635025.gal : 36 ms
[2026-05-23 07:39:36] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality1196996060241995856.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/ReachabilityCardinality2105955486175635025.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality1196996060241995856.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 ...328
BEST_FIRST walk for 40000 steps (179 resets) in 813 ms. (49 steps per ms) remains 11/12 properties
FORMULA CO4-PT-08-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Loading property file /tmp/ReachabilityCardinality1196996060241995856.prop.
BEST_FIRST walk for 40000 steps (128 resets) in 261 ms. (152 steps per ms) remains 11/11 properties
SDD proceeding with computation,12 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,12 properties remain. new max is 8
SDD size :5 after 6
SDD proceeding with computation,12 properties remain. new max is 16
SDD size :6 after 10
SDD proceeding with computation,12 properties remain. new max is 32
SDD size :10 after 22
SDD proceeding with computation,12 properties remain. new max is 64
SDD size :22 after 82
SDD proceeding with computation,12 properties remain. new max is 128
SDD size :82 after 1147
Invariant property CO4-PT-08-ReachabilityFireability-2024-08 does not hold.
FORMULA CO4-PT-08-ReachabilityFireability-2024-08 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,11 properties remain. new max is 128
SDD size :1147 after 5859
BEST_FIRST walk for 40002 steps (236 resets) in 238 ms. (167 steps per ms) remains 10/11 properties
FORMULA CO4-PT-08-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40002 steps (214 resets) in 175 ms. (227 steps per ms) remains 10/10 properties
Reachability property CO4-PT-08-ReachabilityFireability-2024-05 is true.
SDD proceeding with computation,10 properties remain. new max is 128
SDD size :5859 after 8201
BEST_FIRST walk for 40001 steps (208 resets) in 228 ms. (174 steps per ms) remains 8/10 properties
FORMULA CO4-PT-08-ReachabilityFireability-2024-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40002 steps (180 resets) in 114 ms. (347 steps per ms) remains 8/8 properties
Invariant property CO4-PT-08-ReachabilityFireability-2024-07 does not hold.
FORMULA CO4-PT-08-ReachabilityFireability-2024-07 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
BEST_FIRST walk for 40002 steps (126 resets) in 146 ms. (272 steps per ms) remains 7/8 properties
FORMULA CO4-PT-08-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Invariant property CO4-PT-08-ReachabilityFireability-2024-02 does not hold.
FORMULA CO4-PT-08-ReachabilityFireability-2024-02 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,8 properties remain. new max is 128
SDD size :8201 after 8252
Invariant property CO4-PT-08-ReachabilityFireability-2024-13 does not hold.
FORMULA CO4-PT-08-ReachabilityFireability-2024-13 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
BEST_FIRST walk for 40001 steps (185 resets) in 251 ms. (158 steps per ms) remains 7/7 properties
SDD proceeding with computation,7 properties remain. new max is 128
SDD size :8252 after 8283
BEST_FIRST walk for 40001 steps (185 resets) in 179 ms. (222 steps per ms) remains 7/7 properties
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-362629387405870026.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-11156046901594723178.kers'
[2026-05-23 07:39:36] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-362629387405870026.kers, --Pflows, --basisKERS=/tmp/petrispot-output-11156046901594723178.kers]
Culled 0 columns in 0 ms.
// Phase 1: matrix 445 rows 359 cols 1134 entries
Finished phase 1 with 340 SingleSign rule and 10 generalized
[2026-05-23 07:39:36] [INFO ] Computed 9 invariants in 2 ms
Computed 9 P flows in 2 ms.
Exported basis to /tmp/petrispot-output-11156046901594723178.kers
Total runtime 3 ms.
Excessive predecessor constraint size, skipping predecessor.
SDD proceeding with computation,7 properties remain. new max is 256
SDD size :8283 after 8382
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/51 variables, 51/51 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/51 variables, 0/51 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Reachability property CO4-PT-08-ReachabilityFireability-2024-09 is true.
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :8382 after 8630
Problem CO4-PT-08-ReachabilityFireability-2024-04 is UNSAT
FORMULA CO4-PT-08-ReachabilityFireability-2024-04 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 254/305 variables, 8/59 constraints. Problems are: Problem set: 1 solved, 3 unsolved
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :8630 after 8683
At refinement iteration 3 (INCLUDED_ONLY) 0/305 variables, 254/313 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/305 variables, 0/313 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 5 (OVERLAPS) 54/359 variables, 1/314 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/359 variables, 54/368 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/359 variables, 0/368 constraints. Problems are: Problem set: 1 solved, 3 unsolved
SDD proceeding with computation,6 properties remain. new max is 1024
SDD size :8683 after 8899
At refinement iteration 8 (OVERLAPS) 445/804 variables, 359/727 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/804 variables, 0/727 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 10 (OVERLAPS) 0/804 variables, 0/727 constraints. Problems are: Problem set: 1 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 804/804 variables, and 727 constraints, problems are : Problem set: 1 solved, 3 unsolved in 741 ms.
Refiners :[Domain max(s): 359/359 constraints, Positive P Invariants (semi-flows): 8/8 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 359/359 constraints, PredecessorRefiner: 4/3 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/37 variables, 37/37 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/37 variables, 0/37 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Problem CO4-PT-08-ReachabilityFireability-2024-15 is UNSAT
FORMULA CO4-PT-08-ReachabilityFireability-2024-15 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 260/297 variables, 6/43 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/297 variables, 260/303 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/297 variables, 1/304 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/297 variables, 0/304 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 7/304 variables, 2/306 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/304 variables, 7/313 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/304 variables, 0/313 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 55/359 variables, 1/314 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/359 variables, 55/369 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/359 variables, 1/370 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/359 variables, 1/371 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/359 variables, 1/372 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/359 variables, 0/372 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 15 (OVERLAPS) 445/804 variables, 359/731 constraints. Problems are: Problem set: 2 solved, 2 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/804 variables, 1/732 constraints. Problems are: Problem set: 2 solved, 2 unsolved
Reachability property CO4-PT-08-ReachabilityFireability-2024-12 is true.
FORMULA CO4-PT-08-ReachabilityFireability-2024-12 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
At refinement iteration 17 (INCLUDED_ONLY) 0/804 variables, 0/732 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 0/804 variables, 0/732 constraints. Problems are: Problem set: 3 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 804/804 variables, and 732 constraints, problems are : Problem set: 3 solved, 1 unsolved in 1437 ms.
Refiners :[Domain max(s): 359/359 constraints, Positive P Invariants (semi-flows): 8/8 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 359/359 constraints, PredecessorRefiner: 2/3 constraints, Known Traps: 4/4 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 2271ms problems are : Problem set: 3 solved, 1 unsolved
Finished Parikh walk after 786 steps, including 15 resets, run visited all 1 properties in 4 ms. (steps per millisecond=196 )
FORMULA CO4-PT-08-ReachabilityFireability-2024-01 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 9 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 3910 ms.

BK_STOP 1779521979107

--------------------
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_1.0.0.202604301425.jar
+ 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="CO4-PT-08"
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 CO4-PT-08, 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 r066-tall-177946967700343"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-08.tgz
mv CO4-PT-08 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 ;