Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r246-smll-162106594300140.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2021-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 gold2020
Input is ShieldRVt-PT-020A, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r246-smll-162106594300140
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 404K
-rw-r--r-- 1 mcc users 9.7K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 90K May 10 09:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 9.2K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 88K May 10 09:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.2K Mar 28 16:41 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 28 16:41 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K Mar 28 16:41 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 28 16:41 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.1K Mar 27 12:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 23K Mar 27 12:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 25 19:02 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 15K Mar 25 19:02 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 22 08:16 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Mar 22 08:16 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:52 equiv_col
-rw-r--r-- 1 mcc users 5 May 5 16:52 instance
-rw-r--r-- 1 mcc users 6 May 5 16:52 iscolored
-rw-r--r-- 1 mcc users 54K May 5 16:52 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 ShieldRVt-PT-020A-ReachabilityFireability-00
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-01
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-02
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-03
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-04
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-05
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-06
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-07
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-08
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-09
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-10
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-11
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-12
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-13
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-14
FORMULA_NAME ShieldRVt-PT-020A-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1621321260578

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2021-05-18 07:01:03] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2021-05-18 07:01:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-18 07:01:04] [INFO ] Load time of PNML (sax parser for PT used): 90 ms
[2021-05-18 07:01:04] [INFO ] Transformed 163 places.
[2021-05-18 07:01:04] [INFO ] Transformed 163 transitions.
[2021-05-18 07:01:04] [INFO ] Found NUPN structural information;
[2021-05-18 07:01:04] [INFO ] Parsed PT model containing 163 places and 163 transitions in 153 ms.
Ensure Unique test removed 1 transitions
Reduce redundant transitions removed 1 transitions.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 70 ms.
Working with output stream class java.io.PrintStream
Incomplete random walk after 10000 steps, including 0 resets, run finished after 129 ms. (steps per millisecond=77 ) properties seen :[1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0]
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10000 steps, including 0 resets, run finished after 30 ms. (steps per millisecond=333 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 68 ms. (steps per millisecond=147 ) properties seen :[0, 1, 0, 0, 0, 0, 0, 0, 0, 0]
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 40 ms. (steps per millisecond=250 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 37 ms. (steps per millisecond=270 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 28 ms. (steps per millisecond=357 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 57 ms. (steps per millisecond=175 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 72 ms. (steps per millisecond=138 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 42 ms. (steps per millisecond=238 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 22 ms. (steps per millisecond=454 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 34 ms. (steps per millisecond=294 ) properties seen :[0, 0, 0, 0, 0, 0, 0, 0, 0]
// Phase 1: matrix 162 rows 163 cols
[2021-05-18 07:01:04] [INFO ] Computed 81 place invariants in 9 ms
[2021-05-18 07:01:05] [INFO ] [Real]Absence check using 81 positive place invariants in 54 ms returned sat
[2021-05-18 07:01:05] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:05] [INFO ] [Real]Absence check using state equation in 218 ms returned sat
[2021-05-18 07:01:05] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 29 ms.
[2021-05-18 07:01:05] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:05] [INFO ] [Nat]Absence check using 81 positive place invariants in 48 ms returned sat
[2021-05-18 07:01:05] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:06] [INFO ] [Nat]Absence check using state equation in 366 ms returned sat
[2021-05-18 07:01:06] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 41 ms.
[2021-05-18 07:01:07] [INFO ] Added : 159 causal constraints over 32 iterations in 1013 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 15 ms.
[2021-05-18 07:01:07] [INFO ] [Real]Absence check using 81 positive place invariants in 41 ms returned sat
[2021-05-18 07:01:07] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:07] [INFO ] [Real]Absence check using state equation in 178 ms returned sat
[2021-05-18 07:01:07] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 17 ms.
[2021-05-18 07:01:07] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:07] [INFO ] [Nat]Absence check using 81 positive place invariants in 39 ms returned sat
[2021-05-18 07:01:07] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:07] [INFO ] [Nat]Absence check using state equation in 147 ms returned sat
[2021-05-18 07:01:07] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 22 ms.
[2021-05-18 07:01:08] [INFO ] Added : 159 causal constraints over 32 iterations in 630 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 11 ms.
[2021-05-18 07:01:08] [INFO ] [Real]Absence check using 81 positive place invariants in 34 ms returned sat
[2021-05-18 07:01:08] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:08] [INFO ] [Real]Absence check using state equation in 136 ms returned sat
[2021-05-18 07:01:08] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 17 ms.
[2021-05-18 07:01:08] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:08] [INFO ] [Nat]Absence check using 81 positive place invariants in 41 ms returned sat
[2021-05-18 07:01:08] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:08] [INFO ] [Nat]Absence check using state equation in 161 ms returned sat
[2021-05-18 07:01:09] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 16 ms.
[2021-05-18 07:01:09] [INFO ] Added : 159 causal constraints over 32 iterations in 748 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 16 ms.
[2021-05-18 07:01:09] [INFO ] [Real]Absence check using 81 positive place invariants in 36 ms returned sat
[2021-05-18 07:01:09] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:10] [INFO ] [Real]Absence check using state equation in 146 ms returned sat
[2021-05-18 07:01:10] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 15 ms.
[2021-05-18 07:01:10] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:10] [INFO ] [Nat]Absence check using 81 positive place invariants in 31 ms returned sat
[2021-05-18 07:01:10] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:10] [INFO ] [Nat]Absence check using state equation in 137 ms returned sat
[2021-05-18 07:01:10] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 18 ms.
[2021-05-18 07:01:10] [INFO ] Added : 160 causal constraints over 33 iterations in 638 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 10 ms.
[2021-05-18 07:01:11] [INFO ] [Real]Absence check using 81 positive place invariants in 49 ms returned sat
[2021-05-18 07:01:11] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:11] [INFO ] [Real]Absence check using state equation in 135 ms returned sat
[2021-05-18 07:01:11] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 15 ms.
[2021-05-18 07:01:11] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:11] [INFO ] [Nat]Absence check using 81 positive place invariants in 33 ms returned sat
[2021-05-18 07:01:11] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:11] [INFO ] [Nat]Absence check using state equation in 135 ms returned sat
[2021-05-18 07:01:11] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 15 ms.
[2021-05-18 07:01:12] [INFO ] Added : 160 causal constraints over 33 iterations in 617 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 14 ms.
[2021-05-18 07:01:12] [INFO ] [Real]Absence check using 81 positive place invariants in 34 ms returned sat
[2021-05-18 07:01:12] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:12] [INFO ] [Real]Absence check using state equation in 137 ms returned sat
[2021-05-18 07:01:12] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:12] [INFO ] [Nat]Absence check using 81 positive place invariants in 36 ms returned sat
[2021-05-18 07:01:12] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:12] [INFO ] [Nat]Absence check using state equation in 136 ms returned sat
[2021-05-18 07:01:12] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 15 ms.
[2021-05-18 07:01:13] [INFO ] Added : 159 causal constraints over 32 iterations in 632 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 9 ms.
[2021-05-18 07:01:13] [INFO ] [Real]Absence check using 81 positive place invariants in 35 ms returned sat
[2021-05-18 07:01:13] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:13] [INFO ] [Real]Absence check using state equation in 133 ms returned sat
[2021-05-18 07:01:13] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 12 ms.
[2021-05-18 07:01:13] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:13] [INFO ] [Nat]Absence check using 81 positive place invariants in 49 ms returned sat
[2021-05-18 07:01:13] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:13] [INFO ] [Nat]Absence check using state equation in 130 ms returned sat
[2021-05-18 07:01:13] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 19 ms.
[2021-05-18 07:01:14] [INFO ] Added : 160 causal constraints over 32 iterations in 640 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 8 ms.
[2021-05-18 07:01:14] [INFO ] [Real]Absence check using 81 positive place invariants in 34 ms returned sat
[2021-05-18 07:01:14] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:14] [INFO ] [Real]Absence check using state equation in 138 ms returned sat
[2021-05-18 07:01:14] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:14] [INFO ] [Nat]Absence check using 81 positive place invariants in 30 ms returned sat
[2021-05-18 07:01:14] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:14] [INFO ] [Nat]Absence check using state equation in 128 ms returned sat
[2021-05-18 07:01:14] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 23 ms.
[2021-05-18 07:01:15] [INFO ] Added : 158 causal constraints over 32 iterations in 557 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 9 ms.
[2021-05-18 07:01:15] [INFO ] [Real]Absence check using 81 positive place invariants in 39 ms returned sat
[2021-05-18 07:01:15] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:15] [INFO ] [Real]Absence check using state equation in 131 ms returned sat
[2021-05-18 07:01:15] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 14 ms.
[2021-05-18 07:01:15] [INFO ] Solution in real domain found non-integer solution.
[2021-05-18 07:01:15] [INFO ] [Nat]Absence check using 81 positive place invariants in 34 ms returned sat
[2021-05-18 07:01:15] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-18 07:01:15] [INFO ] [Nat]Absence check using state equation in 126 ms returned sat
[2021-05-18 07:01:15] [INFO ] Computed and/alt/rep : 161/699/161 causal constraints in 11 ms.
[2021-05-18 07:01:16] [INFO ] Added : 156 causal constraints over 32 iterations in 555 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 15 ms.
Finished Parikh walk after 17197 steps, including 100 resets, run visited all 9 properties in 92 ms. (steps per millisecond=186 )
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-15 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-12 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-11 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-09 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-08 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-05 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-04 FALSE TECHNIQUES TOPOLOGICAL PARIKH_WALK
FORMULA ShieldRVt-PT-020A-ReachabilityFireability-01 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
All properties solved without resorting to model-checking.

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

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="ShieldRVt-PT-020A"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="gold2020"
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 2-4028"
echo " Executing tool gold2020"
echo " Input is ShieldRVt-PT-020A, 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 r246-smll-162106594300140"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ShieldRVt-PT-020A.tgz
mv ShieldRVt-PT-020A 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 '' 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 ;