About the Execution of Tapaal for Sudoku-COL-AN09
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
4142.472 | 3592212.00 | 10599914.00 | 4455.80 | TT?TFTTTTTFFFTTT | normal |
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.r255-tall-165303542000110.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 tapaal
Input is Sudoku-COL-AN09, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r255-tall-165303542000110
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 460K
-rw-r--r-- 1 mcc users 8.4K Apr 30 12:03 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K Apr 30 12:03 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K Apr 30 11:39 CTLFireability.txt
-rw-r--r-- 1 mcc users 52K Apr 30 11:39 CTLFireability.xml
-rw-r--r-- 1 mcc users 5 May 10 09:34 equiv_pt
-rw-r--r-- 1 mcc users 4.2K May 10 09:34 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 10 09:34 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 5 May 10 09:34 instance
-rw-r--r-- 1 mcc users 5 May 10 09:34 iscolored
-rw-r--r-- 1 mcc users 4.1K May 9 09:11 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K May 9 09:11 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 9 09:11 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K May 9 09:11 LTLFireability.xml
-rw-r--r-- 1 mcc users 6.5K May 10 09:34 model.pnml
-rw-r--r-- 1 mcc users 12K Apr 30 12:21 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 125K Apr 30 12:21 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Apr 30 12:05 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 41K Apr 30 12:05 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 9 09:11 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 9 09:11 UpperBounds.xml
--------------------
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 Sudoku-COL-AN09-ReachabilityCardinality-00
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-01
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-02
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-03
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-04
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-05
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-06
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-07
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-08
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-09
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-10
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-11
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-12
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-13
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-14
FORMULA_NAME Sudoku-COL-AN09-ReachabilityCardinality-15
=== Now, execution of the tool begins
BK_START 1654335811614
tapaal
Got BK_BIN_PATH=/home/mcc/BenchKit/bin/
---> tapaal --- TAPAAL v5
Setting MODEL_PATH=.
Setting VERIFYPN=/home/mcc/BenchKit/bin/verifypn
Got BK_TIME_CONFINEMENT=3600
Setting TEMPDIR=/home/mcc/BenchKit/bin/tmp
Got BK_MEMORY_CONFINEMENT=16384
Limiting to 16265216 kB
Total timeout: 3590
Time left: 3590
**********************************************
* TAPAAL verifying ReachabilityCardinality *
**********************************************
TEMPDIR=/home/mcc/BenchKit/bin/tmp
QF=/home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA
MF=/home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL
Time left: 3590
---------------------------------------------------
Step -1: Stripping Colors
---------------------------------------------------
Verifying stripped models (16 in total)
/home/mcc/BenchKit/bin/verifypn -n -c -q 718 -l 29 -d 299 -z 4 -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./ReachabilityCardinality.xml
Solution found by stripping colors (step -1) for query index 3
Solution found by stripping colors (step -1) for query index 6
Solution found by stripping colors (step -1) for query index 7
Solution found by stripping colors (step -1) for query index 8
Solution found by stripping colors (step -1) for query index 9
Solution found by stripping colors (step -1) for query index 12
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-03 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX CPN_APPROX
Query index 3 was solved
Query is satisfied.
Solved using CPN Approximation
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-06 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX CPN_APPROX
Query index 6 was solved
Query is satisfied.
Solved using CPN Approximation
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-07 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX CPN_APPROX
Query index 7 was solved
Query is satisfied.
Solved using CPN Approximation
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-08 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX CPN_APPROX
Query index 8 was solved
Query is satisfied.
Solved using CPN Approximation
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-09 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX CPN_APPROX
Query index 9 was solved
Query is satisfied.
Solved using CPN Approximation
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-12 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX CPN_APPROX
Query index 12 was solved
Query is NOT satisfied.
Solved using CPN Approximation
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-00 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-01 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-15 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-10 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-05 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-14 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-04 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-11 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-13 is satisfied.
Query is MAYBE satisfied.
Unable to decide if Sudoku-COL-AN09-ReachabilityCardinality-02 is satisfied.
Query is MAYBE satisfied.
Spent 0.001934 on verification
Time left: 3590
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (10 in total)
Total simplification timout is 718 -- reduction timeout is 299
timeout 3590 /home/mcc/BenchKit/bin/verifypn -n -q 718 -l 29 -d 299 -z 4 -s OverApprox --binary-query-io 2 --write-simplified /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL -x 1,2,3,5,6,11,12,14,15,16 ./model.pnml ./ReachabilityCardinality.xml
Time left: 3586
---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (10 in total)
Each query is verified by 4 parallel strategies for 256 seconds
------------------- QUERY 1 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.038618 on verification
@@@0.05,7940@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 1 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-00 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3586
------------------- QUERY 2 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.066337 on verification
@@@0.08,11360@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 2 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-01 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3585
------------------- QUERY 3 ----------------------
No solution found
Time left: 3326
------------------- QUERY 4 ----------------------
No solution found
Time left: 3068
------------------- QUERY 5 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.045746 on verification
@@@0.06,8492@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BestFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 5 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-14 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3068
------------------- QUERY 6 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.101226 on verification
@@@0.12,11224@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 6 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-15 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 3067
------------------- QUERY 7 ----------------------
No solution found
Time left: 2808
------------------- QUERY 8 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.057801 on verification
@@@0.09,8860@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 8 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-04 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2808
------------------- QUERY 9 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is NOT satisfied.
Spent 0.070303 on verification
@@@0.10,11284@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 9 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-10 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2808
------------------- QUERY 10 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved
Query is satisfied.
Spent 0.076398 on verification
@@@0.12,11368@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ DFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 10 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-05 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2807
---------------------------------------------------
Step 2: Sequential processing
---------------------------------------------------
Remaining 3 queries are verified sequentially.
Each query is verified for a dynamic timeout (at least 512 seconds)
Time left: 2807
------------------- QUERY 3 ----------------------
Running query 3 for 935 seconds. Remaining: 3 queries and 2807 seconds
No solution found
Time left: 1870
------------------- QUERY 4 ----------------------
Running query 4 for 935 seconds. Remaining: 2 queries and 1870 seconds
No solution found
Time left: 933
------------------- QUERY 7 ----------------------
Running query 7 for 933 seconds. Remaining: 1 queries and 933 seconds
Solution found by sequential processing (step 2)
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Query index 0 was solved
Query is NOT satisfied.
Spent 0.239425 on verification
@@@0.29,9708@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ RDFS\ -q\ 40\ -l\ 5\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 7 -n
Query index 0 was solved
Query is NOT satisfied.
Spent 0.239425 on verification
@@@0.29,9708@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ RDFS\ -q\ 40\ -l\ 5\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 7 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 932
Time left: 932
---------------------------------------------------
Step 4: Random Parallel processing
---------------------------------------------------
Doing random parallel verification of individual queries (2 in total)
Each query is verified by 4 parallel strategies for 466 seconds
------------------- QUERY 3 ----------------------
No solution found
Time left: 464
------------------- QUERY 4 ----------------------
Solution found in random processing (step 4)
Query index 0 was solved
Query is satisfied.
Spent 0.365235 on verification
@@@0.39,12176@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ RDFS\ --seed-offset\ 1337\ -q\ 0\ -l\ 0\ -d\ 0 /home/mcc/BenchKit/bin/tmp/tmp.NBEUhHHuXL /home/mcc/BenchKit/bin/tmp/tmp.7K6GIzCGkA --binary-query-io 1 -x 4 -n
FORMULA Sudoku-COL-AN09-ReachabilityCardinality-13 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 463
Time left: 463
---------------------------------------------------
Step 4: Random Parallel processing
---------------------------------------------------
Doing random parallel verification of individual queries (1 in total)
Each query is verified by 4 parallel strategies for 463 seconds
------------------- QUERY 3 ----------------------
No solution found
Time left: -2
Out of time, terminating!
terminated-with-cleanup
BK_STOP 1654339403826
--------------------
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="Sudoku-COL-AN09"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="tapaal"
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 tapaal"
echo " Input is Sudoku-COL-AN09, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r255-tall-165303542000110"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Sudoku-COL-AN09.tgz
mv Sudoku-COL-AN09 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;