Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2022-input.r229-tall-165286033900187.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2022-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is ShieldIIPt-PT-030B, examination is QuasiLiveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r229-tall-165286033900187
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 760K
-rw-r--r-- 1 mcc users 7.6K Apr 29 18:26 CTLCardinality.txt
-rw-r--r-- 1 mcc users 84K Apr 29 18:26 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.6K Apr 29 18:26 CTLFireability.txt
-rw-r--r-- 1 mcc users 64K Apr 29 18:26 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.6K May 9 08:51 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 9 08:51 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K May 9 08:51 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K May 9 08:51 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 9 08:51 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 9 08:51 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 10 09:34 equiv_col
-rw-r--r-- 1 mcc users 5 May 10 09:34 instance
-rw-r--r-- 1 mcc users 6 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 512K May 10 09:34 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 QuasiLiveness

=== Now, execution of the tool begins

BK_START 1653032642739

Running Version 202205111006
[2022-05-20 07:44:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, QuasiLiveness, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 1800]
[2022-05-20 07:44:03] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2022-05-20 07:44:04] [INFO ] Load time of PNML (sax parser for PT used): 158 ms
[2022-05-20 07:44:04] [INFO ] Transformed 2103 places.
[2022-05-20 07:44:04] [INFO ] Transformed 1953 transitions.
[2022-05-20 07:44:04] [INFO ] Found NUPN structural information;
[2022-05-20 07:44:04] [INFO ] Parsed PT model containing 2103 places and 1953 transitions in 318 ms.
Starting structural reductions in LIVENESS mode, iteration 0 : 2103/2103 places, 1953/1953 transitions.
Drop transitions removed 512 transitions
Trivial Post-agglo rules discarded 512 transitions
Performed 512 trivial Post agglomeration. Transition count delta: 512
Iterating post reduction 0 with 512 rules applied. Total rules applied 512 place count 2103 transition count 1441
Reduce places removed 512 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 1 with 514 rules applied. Total rules applied 1026 place count 1591 transition count 1439
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 1027 place count 1590 transition count 1439
Performed 121 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 121 Pre rules applied. Total rules applied 1027 place count 1590 transition count 1318
Deduced a syphon composed of 121 places in 18 ms
Reduce places removed 121 places and 0 transitions.
Iterating global reduction 3 with 242 rules applied. Total rules applied 1269 place count 1469 transition count 1318
Discarding 210 places :
Symmetric choice reduction at 3 with 210 rule applications. Total rules 1479 place count 1259 transition count 1108
Iterating global reduction 3 with 210 rules applied. Total rules applied 1689 place count 1259 transition count 1108
Performed 90 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 90 Pre rules applied. Total rules applied 1689 place count 1259 transition count 1018
Deduced a syphon composed of 90 places in 5 ms
Reduce places removed 90 places and 0 transitions.
Iterating global reduction 3 with 180 rules applied. Total rules applied 1869 place count 1169 transition count 1018
Performed 509 Post agglomeration using F-continuation condition.Transition count delta: 509
Deduced a syphon composed of 509 places in 1 ms
Reduce places removed 509 places and 0 transitions.
Iterating global reduction 3 with 1018 rules applied. Total rules applied 2887 place count 660 transition count 509
Renaming transitions due to excessive name length > 1024 char.
Performed 89 Post agglomeration using F-continuation condition.Transition count delta: -59
Deduced a syphon composed of 89 places in 2 ms
Reduce places removed 89 places and 0 transitions.
Iterating global reduction 3 with 178 rules applied. Total rules applied 3065 place count 571 transition count 568
Applied a total of 3065 rules in 569 ms. Remains 571 /2103 variables (removed 1532) and now considering 568/1953 (removed 1385) transitions.
// Phase 1: matrix 568 rows 571 cols
[2022-05-20 07:44:04] [INFO ] Computed 271 place invariants in 21 ms
[2022-05-20 07:44:05] [INFO ] Implicit Places using invariants in 524 ms returned [563, 564]
Discarding 2 places :
Implicit Place search using SMT only with invariants took 552 ms to find 2 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 569/2103 places, 568/1953 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 569 transition count 567
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 568 transition count 567
Applied a total of 2 rules in 23 ms. Remains 568 /569 variables (removed 1) and now considering 567/568 (removed 1) transitions.
// Phase 1: matrix 567 rows 568 cols
[2022-05-20 07:44:05] [INFO ] Computed 269 place invariants in 4 ms
[2022-05-20 07:44:05] [INFO ] Implicit Places using invariants in 325 ms returned [557]
Discarding 1 places :
Implicit Place search using SMT only with invariants took 327 ms to find 1 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 567/2103 places, 567/1953 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Deduced a syphon composed of 1 places in 2 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 566 transition count 566
Applied a total of 2 rules in 29 ms. Remains 566 /567 variables (removed 1) and now considering 566/567 (removed 1) transitions.
// Phase 1: matrix 566 rows 566 cols
[2022-05-20 07:44:05] [INFO ] Computed 268 place invariants in 2 ms
[2022-05-20 07:44:06] [INFO ] Implicit Places using invariants in 300 ms returned []
// Phase 1: matrix 566 rows 566 cols
[2022-05-20 07:44:06] [INFO ] Computed 268 place invariants in 10 ms
[2022-05-20 07:44:06] [INFO ] State equation strengthened by 267 read => feed constraints.
[2022-05-20 07:44:08] [INFO ] Implicit Places using invariants and state equation in 2239 ms returned []
Implicit Place search using SMT with State Equation took 2544 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 3 : 566/2103 places, 566/1953 transitions.
Finished structural reductions, in 3 iterations. Remains : 566/2103 places, 566/1953 transitions.
Discarding 267 transitions out of 566. Remains 299
Initial state reduction rules removed 1 formulas.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 743 ms. (steps per millisecond=13 ) properties (out of 298) seen :117
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 7 ms. (steps per millisecond=14 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 9 ms. (steps per millisecond=11 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=20 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=20 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 5 ms. (steps per millisecond=20 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 100 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 6 ms. (steps per millisecond=16 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 4 ms. (steps per millisecond=25 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 3 ms. (steps per millisecond=33 ) properties (out of 181) seen :0
Incomplete Best-First random walk after 101 steps, including 2 resets, run finished after 2 ms. (steps per millisecond=50 ) properties (out of 181) seen :0
Running SMT prover for 181 properties.
// Phase 1: matrix 566 rows 566 cols
[2022-05-20 07:44:09] [INFO ] Computed 268 place invariants in 5 ms
[2022-05-20 07:44:11] [INFO ] [Real]Absence check using 268 positive place invariants in 37 ms returned sat
[2022-05-20 07:44:20] [INFO ] After 7821ms SMT Verify possible using state equation in real domain returned unsat :0 sat :14 real:167
[2022-05-20 07:44:20] [INFO ] State equation strengthened by 267 read => feed constraints.
[2022-05-20 07:44:21] [INFO ] After 562ms SMT Verify possible using 267 Read/Feed constraints in real domain returned unsat :0 sat :0 real:181
[2022-05-20 07:44:21] [INFO ] After 11752ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:181
[2022-05-20 07:44:22] [INFO ] [Nat]Absence check using 268 positive place invariants in 35 ms returned sat
[2022-05-20 07:44:34] [INFO ] After 9961ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :181
[2022-05-20 07:44:46] [INFO ] After 11912ms SMT Verify possible using 267 Read/Feed constraints in natural domain returned unsat :0 sat :180
[2022-05-20 07:44:46] [INFO ] After 11913ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :180
Attempting to minimize the solution found.
Minimization took 0 ms.
[2022-05-20 07:44:46] [INFO ] After 25023ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :180
Finished Parikh walk after 638 steps, including 0 resets, run visited all 4 properties in 16 ms. (steps per millisecond=39 )
Parikh walk visited 181 properties in 8467 ms.
Able to resolve query QuasiLiveness after proving 299 properties.
FORMULA QuasiLiveness TRUE TECHNIQUES RANDOM_WALK PARIKH_WALK TOPOLOGICAL INITIAL_STATE
Total runtime 50699 ms.

BK_STOP 1653032694585

--------------------
content from stderr:

+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ QuasiLiveness = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution QuasiLiveness -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination QuasiLiveness -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 1800 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m

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="ShieldIIPt-PT-030B"
export BK_EXAMINATION="QuasiLiveness"
export BK_TOOL="itstools"
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 2-4028"
echo " Executing tool itstools"
echo " Input is ShieldIIPt-PT-030B, examination is QuasiLiveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r229-tall-165286033900187"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldIIPt-PT-030B.tgz
mv ShieldIIPt-PT-030B execution
cd execution
if [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "UpperBounds" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] || [ "QuasiLiveness" = "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 [ "QuasiLiveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "QuasiLiveness" != "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 "QuasiLiveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property QuasiLiveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "QuasiLiveness.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 '' QuasiLiveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "QuasiLiveness" = "ReachabilityDeadlock" ] || [ "QuasiLiveness" = "QuasiLiveness" ] || [ "QuasiLiveness" = "StableMarking" ] || [ "QuasiLiveness" = "Liveness" ] || [ "QuasiLiveness" = "OneSafe" ] ; then
echo "FORMULA_NAME QuasiLiveness"
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 ;