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.r276-smll-171654416100149.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)
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=====================================================================
Generated by BenchKit 2-5568
Executing tool greatspnxred
Input is Peterson-COL-6, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r276-smll-171654416100149
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 496K
-rw-r--r-- 1 mcc users 8.9K Apr 12 02:48 CTLCardinality.txt
-rw-r--r-- 1 mcc users 95K Apr 12 02:48 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Apr 12 02:33 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Apr 12 02:33 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.8K Apr 23 07:42 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 23 07:42 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Apr 23 07:42 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 23 07:42 LTLFireability.xml
-rw-r--r-- 1 mcc users 8.5K Apr 12 03:25 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 77K Apr 12 03:25 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Apr 12 03:15 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 86K Apr 12 03:15 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 23 07:42 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 23 07:42 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_pt
-rw-r--r-- 1 mcc users 2 May 18 16:43 instance
-rw-r--r-- 1 mcc users 5 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 46K May 18 16:43 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME Liveness

=== Now, execution of the tool begins

BK_START 1716818343877

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Peterson-COL-6
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-27 13:59:05] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -timeout, 180, -rebuildPNML]
[2024-05-27 13:59:05] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-27 13:59:05] [INFO ] Detected file is not PT type :http://www.pnml.org/version-2009/grammar/symmetricnet
log4j:WARN No appenders could be found for logger (org.apache.axiom.locator.DefaultOMMetaFactoryLocator).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[2024-05-27 13:59:06] [WARNING] Using fallBack plugin, rng conformance not checked
[2024-05-27 13:59:06] [INFO ] Load time of PNML (colored model parsed with PNMLFW) : 1028 ms
[2024-05-27 13:59:06] [INFO ] Imported 11 HL places and 14 HL transitions for a total of 1372 PT places and 2247.0 transition bindings in 30 ms.
[2024-05-27 13:59:06] [INFO ] Built PT skeleton of HLPN with 11 places and 14 transitions 42 arcs in 6 ms.
[2024-05-27 13:59:06] [INFO ] Skeletonized 0 HLPN properties in 0 ms.
[2024-05-27 13:59:07] [INFO ] Unfolded HLPN to a Petri net with 1372 places and 2114 transitions 6608 arcs in 96 ms.
[2024-05-27 13:59:07] [INFO ] Unfolded 0 HLPN properties in 0 ms.
[2024-05-27 13:59:07] [INFO ] Unfolded HLPN to a Petri net with 1372 places and 2114 transitions 6608 arcs in 42 ms.
[2024-05-27 13:59:07] [INFO ] Unfolded 14 HLPN properties in 9 ms.
[2024-05-27 13:59:07] [INFO ] Built PT skeleton of HLPN with 11 places and 14 transitions 42 arcs in 1 ms.
[2024-05-27 13:59:07] [INFO ] Skeletonized 14 HLPN properties in 2 ms.
Reduce places removed 2 places and 0 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Prefix of Interest using HLPN skeleton for deadlock discarded 0 places and 0 transitions.
Domain [Process(7), Tour(6), Process(7)] of place BeginLoop breaks symmetries in sort Process
Arc [2:1*[$i, (MOD (ADD $j 1) 6)]] contains successor/predecessor on variables of sort Tour
Symmetric sort wr.t. initial and guards and successors and join/free detected :Bool
Arc [1:1*[$i, 0]] contains constants of sort Bool
Transition Ask : constants on arcs in [[1:1*[$i, 0]]] introduces in Bool(2) partition with 1 elements that refines current partition to 2 subsets.
[2024-05-27 13:59:07] [INFO ] Unfolded HLPN to a Petri net with 1372 places and 2114 transitions 6608 arcs in 55 ms.
[2024-05-27 13:59:07] [INFO ] Unfolded 14 HLPN properties in 0 ms.
Deduced a syphon composed of 42 places in 27 ms
Reduce places removed 42 places and 84 transitions.
Built sparse matrix representations for Structural reductions in 8 ms.34124KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 1330/1330 places, 2030/2030 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 136 ms. Remains 1330 /1330 variables (removed 0) and now considering 2030/2030 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 156 ms. Remains : 1330/1330 places, 2030/2030 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 1330/1330 places, 2030/2030 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 71 ms. Remains 1330 /1330 variables (removed 0) and now considering 2030/2030 (removed 0) transitions.
[2024-05-27 13:59:07] [INFO ] Flow matrix only has 1820 transitions (discarded 210 similar events)
// Phase 1: matrix 1820 rows 1330 cols
[2024-05-27 13:59:07] [INFO ] Computed 27 invariants in 50 ms
[2024-05-27 13:59:08] [INFO ] Implicit Places using invariants in 729 ms returned []
[2024-05-27 13:59:08] [INFO ] Flow matrix only has 1820 transitions (discarded 210 similar events)
[2024-05-27 13:59:08] [INFO ] Invariant cache hit.
[2024-05-27 13:59:09] [INFO ] State equation strengthened by 330 read => feed constraints.
[2024-05-27 13:59:09] [INFO ] Implicit Places using invariants and state equation in 1324 ms returned []
Implicit Place search using SMT with State Equation took 2101 ms to find 0 implicit places.
[2024-05-27 13:59:09] [INFO ] Redundant transitions in 126 ms returned []
Running 2023 sub problems to find dead transitions.
[2024-05-27 13:59:09] [INFO ] Flow matrix only has 1820 transitions (discarded 210 similar events)
[2024-05-27 13:59:09] [INFO ] Invariant cache hit.
[2024-05-27 13:59:09] [INFO ] State equation strengthened by 330 read => feed constraints.
Error getting values : (error "ParserException while parsing response: (timeout
org.smtlib.IParser$ParserException: Unbalanced parentheses at end of input")
At refinement iteration 0 (INCLUDED_ONLY) 0/1323 variables, 13/13 constraints. Problems are: Problem set: 0 solved, 2023 unsolved
SMT process timed out in 31426ms, After SMT, problems are : Problem set: 0 solved, 2023 unsolved
Search for dead transitions found 0 dead transitions in 31494ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 33839 ms. Remains : 1330/1330 places, 2030/2030 transitions.
Random walk for 1250000 steps, including 0 resets, run took 3243 ms (no deadlock found). (steps per millisecond=385 )
Random directed walk for 1250000 steps, including 0 resets, run took 4415 ms (no deadlock found). (steps per millisecond=283 )
[2024-05-27 13:59:48] [INFO ] Flow matrix only has 1820 transitions (discarded 210 similar events)
[2024-05-27 13:59:48] [INFO ] Invariant cache hit.
[2024-05-27 13:59:49] [INFO ] [Real]Absence check using 20 positive place invariants in 74 ms returned sat
[2024-05-27 13:59:49] [INFO ] [Real]Absence check using 20 positive and 7 generalized place invariants in 40 ms returned unsat
[2024-05-27 13:59:49] [INFO ] Unfolded HLPN to a Petri net with 1372 places and 2114 transitions 6608 arcs in 20 ms.
[2024-05-27 13:59:49] [INFO ] Unfolded 14 HLPN properties in 0 ms.
Initial state reduction rules removed 1 formulas.
Deduced a syphon composed of 42 places in 3 ms
Reduce places removed 42 places and 84 transitions.
RANDOM walk for 40000 steps (8 resets) in 1333 ms. (29 steps per ms) remains 1/13 properties
BEST_FIRST walk for 40004 steps (8 resets) in 550 ms. (72 steps per ms) remains 1/1 properties
[2024-05-27 13:59:50] [INFO ] Flow matrix only has 1820 transitions (discarded 210 similar events)
[2024-05-27 13:59:50] [INFO ] Invariant cache hit.
[2024-05-27 13:59:50] [INFO ] State equation strengthened by 330 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 1239/1281 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1281 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 7/1288 variables, 7/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1288 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1820/3108 variables, 1288/1309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/3108 variables, 330/1639 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/3108 variables, 0/1639 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 42/3150 variables, 42/1681 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/3150 variables, 6/1687 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/3150 variables, 0/1687 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (OVERLAPS) 0/3150 variables, 0/1687 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 3150/3150 variables, and 1687 constraints, problems are : Problem set: 0 solved, 1 unsolved in 1195 ms.
Refiners :[Positive P Invariants (semi-flows): 20/20 constraints, Generalized P Invariants (flows): 7/7 constraints, State Equation: 1330/1330 constraints, ReadFeed: 330/330 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 1239/1281 variables, 14/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/1281 variables, 0/14 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 7/1288 variables, 7/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/1288 variables, 0/21 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 1820/3108 variables, 1288/1309 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/3108 variables, 330/1639 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/3108 variables, 1/1640 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/3108 variables, 0/1640 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 42/3150 variables, 42/1682 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/3150 variables, 6/1688 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2024-05-27 13:59:54] [INFO ] Deduced a trap composed of 54 places in 1018 ms of which 117 ms to minimize.
[2024-05-27 13:59:55] [INFO ] Deduced a trap composed of 84 places in 1044 ms of which 14 ms to minimize.
[2024-05-27 13:59:56] [INFO ] Deduced a trap composed of 55 places in 1133 ms of which 17 ms to minimize.
[2024-05-27 13:59:57] [INFO ] Deduced a trap composed of 28 places in 1201 ms of which 12 ms to minimize.
SMT process timed out in 7352ms, After SMT, problems are : Problem set: 0 solved, 1 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 42 out of 1330 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1330/1330 places, 2030/2030 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 576 transitions
Trivial Post-agglo rules discarded 576 transitions
Performed 576 trivial Post agglomeration. Transition count delta: 576
Iterating post reduction 0 with 576 rules applied. Total rules applied 576 place count 1330 transition count 1454
Reduce places removed 576 places and 0 transitions.
Iterating post reduction 1 with 576 rules applied. Total rules applied 1152 place count 754 transition count 1454
Performed 300 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 300 Pre rules applied. Total rules applied 1152 place count 754 transition count 1154
Deduced a syphon composed of 300 places in 3 ms
Reduce places removed 300 places and 0 transitions.
Iterating global reduction 2 with 600 rules applied. Total rules applied 1752 place count 454 transition count 1154
Applied a total of 1752 rules in 196 ms. Remains 454 /1330 variables (removed 876) and now considering 1154/2030 (removed 876) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 197 ms. Remains : 454/1330 places, 1154/2030 transitions.
RANDOM walk for 4000000 steps (8 resets) in 18166 ms. (220 steps per ms) remains 1/1 properties
BEST_FIRST walk for 4000004 steps (8 resets) in 8322 ms. (480 steps per ms) remains 1/1 properties
Finished probabilistic random walk after 78 steps, run visited all 1 properties in 10 ms. (steps per millisecond=7 )
Probabilistic random walk after 78 steps, saw 71 distinct states, run finished after 15 ms. (steps per millisecond=5 ) properties seen :1
Able to resolve query QuasiLiveness after proving 14 properties.
Net is quasi-live, checking if it is reversible to establish liveness.
Net is conservative; using simplified expression for initial state.
Deduced a syphon composed of 42 places in 3 ms
Reduce places removed 42 places and 84 transitions.
Unable to solve all queries for examination Liveness. Remains :1 assertions to prove.
Deduced a syphon composed of 42 places in 3 ms
Reduce places removed 42 places and 84 transitions.
Unable to solve all queries for examination Liveness. Remains :14 assertions to prove.
No /home/mcc/execution/Liveness.xml examination file found. Proceeding without properties.
Parsed 14 properties from file /home/mcc/execution/Liveness.xml in 1 ms.
Working with output stream class java.io.PrintStream
Total runtime 59314 ms.
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running Peterson-COL-6

IS_COLORED=1
IS_NUPN=

LOADING model.pnml ...
MODEL CLASS: SYMMETRIC NET
PLACES: 11
TRANSITIONS: 14
CONSTANTS: 0
TEMPLATE VARS: 0
COLOR CLASSES: 7
COLOR VARS: 3
ARCS: 42
LOADING TIME: 0.217

UNFOLDING COLORS...
MODEL CLASS: P/T NET
PLACES: 1372
TRANSITIONS: 2114
CONSTANTS: 0
TEMPLATE VARS: 0
ARCS: 6608
UNFOLDING TIME: 0.63

SAVING AS /home/mcc/execution/model.(net/def) ...
exportGspn useExt=true
SAVING TIME: 0.165
SAVING NAME MAP FILE /home/mcc/execution/model.id2name ...
SAVING UNFOLDING MAP FILE /home/mcc/execution/model.unfmap ...
TOTAL TIME: 1.288
OK.
----------------------------------------------------------------------
GreatSPN/Meddly.
Copyright (C) 1987-2022, University of Torino, Italy.
website: https://github.com/greatspn/SOURCES

Based on MEDDLY version 0.16.0
Copyright (C) 2009, Iowa State University Research Foundation, Inc.
website: http://meddly.sourceforge.net

Process ID: 572
MODEL NAME: /home/mcc/execution/model
1372 places, 2114 transitions.

Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.

BK_TIME_CONFINEMENT_REACHED

--------------------
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_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination Liveness -timeout 180 -rebuildPNML

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="Peterson-COL-6"
export BK_EXAMINATION="Liveness"
export BK_TOOL="greatspnxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 greatspnxred"
echo " Input is Peterson-COL-6, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r276-smll-171654416100149"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Peterson-COL-6.tgz
mv Peterson-COL-6 execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property Liveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;