fond
Model Checking Contest 2022
12th edition, Bergen, Norway, June 21, 2022
Execution of r057-tall-165254768400406
Last Updated
Jun 22, 2022

About the Execution of Tapaal for DNAwalker-PT-05track28LR

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
4303.348 2670451.00 7038824.00 5199.50 TTFFTFTFFFFFTTTT 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.r057-tall-165254768400406.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 DNAwalker-PT-05track28LR, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r057-tall-165254768400406
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 548K
-rw-r--r-- 1 mcc users 5.8K Apr 29 18:14 CTLCardinality.txt
-rw-r--r-- 1 mcc users 59K Apr 29 18:14 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Apr 29 18:14 CTLFireability.txt
-rw-r--r-- 1 mcc users 63K Apr 29 18:14 CTLFireability.xml
-rw-r--r-- 1 mcc users 6 May 10 09:33 equiv_col
-rw-r--r-- 1 mcc users 4.2K May 10 09:33 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.0K May 10 09:33 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 12 May 10 09:33 instance
-rw-r--r-- 1 mcc users 6 May 10 09:33 iscolored
-rw-r--r-- 1 mcc users 3.5K May 9 07:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 23K May 9 07:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K May 9 07:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 9 07:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 108K May 10 09:33 model.pnml
-rw-r--r-- 1 mcc users 12K Apr 29 18:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 133K Apr 29 18:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 6.8K Apr 29 18:15 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 53K Apr 29 18:15 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K May 9 07:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K May 9 07:33 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 DNAwalker-PT-05track28LR-ReachabilityCardinality-00
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-01
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-02
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-03
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-04
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-05
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-06
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-07
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-08
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-09
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-10
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-11
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-12
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-13
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-14
FORMULA_NAME DNAwalker-PT-05track28LR-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1654185900638

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.QdbgnmUBDs
MF=/home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ
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
CPN OverApproximation is only usable on colored models
Time left: 3590
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 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.QdbgnmUBDs --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./ReachabilityCardinality.xml
FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-04 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 4 was solved

Query is satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-05 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 5 was solved

Query is NOT satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-06 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 6 was solved

Query is satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-07 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 7 was solved

Query is NOT satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-09 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 9 was solved

Query is NOT satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-11 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 11 was solved

Query is NOT satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-13 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 13 was solved

Query is satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-14 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 14 was solved

Query is satisfied.

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-15 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT LP_APPROX
Query index 15 was solved

Query is satisfied.
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Solution found by parallel simplification (step 0)
Time left: 2863

---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (7 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 NOT satisfied.

Spent 0.003892 on verification
Query index 0 was solved

Query is NOT satisfied.

Spent 0.0027 on verification
@@@0.02,7932@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 1 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-02 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2863
------------------- QUERY 2 ----------------------
Solution found by parallel processing (step 1)
Search strategy option was ignored as the TAR engine is called.
Query index 0 was solved

Query is NOT satisfied.


Solved using Trace Abstraction Refinement

Spent 0.019468 on verification
@@@0.02,6104@@@
FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-10 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 0.001696 on verification
@@@0.01,7432@@@
FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-10 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 0.002366 on verification
@@@0.01,7564@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -tar\ -s\ RDFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 2 -n
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 2 -n
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.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 2 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-10 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT TRACE_ABSTRACTION_REFINEMENT
Time left: 2862
------------------- QUERY 3 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 78.4182 on verification
@@@78.44,471028@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 3 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-12 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2784
------------------- QUERY 4 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 0.002288 on verification
@@@0.01,7856@@@
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.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 4 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-00 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2784
------------------- QUERY 5 ----------------------
No solution found



Time left: 2524
------------------- QUERY 6 ----------------------
No solution found



Time left: 2265
------------------- QUERY 7 ----------------------
Solution found by parallel processing (step 1)
Query index 0 was solved

Query is satisfied.

Spent 0.006258 on verification
@@@0.01,7824@@@
parallel: This job succeeded:
eval /usr/bin/time -f "@@@%e,%M@@@" /home/mcc/BenchKit/bin/verifypn -n -s\ BFS\ -q\ 0\ -l\ 0\ -d\ 119 /home/mcc/BenchKit/bin/tmp/tmp.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 7 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-01 TRUE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 2265
---------------------------------------------------
Step 2: Sequential processing
---------------------------------------------------
Remaining 2 queries are verified sequentially.
Each query is verified for a dynamic timeout (at least 512 seconds)
Time left: 2265
------------------- QUERY 5 ----------------------
Running query 5 for 1132 seconds. Remaining: 2 queries and 2265 seconds
Solution found by sequential processing (step 2)
FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-08 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 305.953 on verification
@@@336.04,1515224@@@
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.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 5 -n
Query index 0 was solved

Query is NOT satisfied.

Spent 305.953 on verification
@@@336.04,1515224@@@
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.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 5 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-08 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 1929
------------------- QUERY 6 ----------------------
Running query 6 for 1929 seconds. Remaining: 1 queries and 1929 seconds
Solution found by sequential processing (step 2)
FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-03 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 983.58 on verification
@@@1009.15,4024928@@@
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.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 6 -n
Query index 0 was solved

Query is NOT satisfied.

Spent 983.58 on verification
@@@1009.15,4024928@@@
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.9MtNFUs8tQ /home/mcc/BenchKit/bin/tmp/tmp.QdbgnmUBDs --binary-query-io 1 -x 6 -n

FORMULA DNAwalker-PT-05track28LR-ReachabilityCardinality-03 FALSE TECHNIQUES COLLATERAL_PROCESSING STRUCTURAL_REDUCTION QUERY_REDUCTION SAT_SMT EXPLICIT STATE_COMPRESSION STUBBORN_SETS
Time left: 919
All queries are solved
Time left: 919
terminated-with-cleanup

BK_STOP 1654188571089

--------------------
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="DNAwalker-PT-05track28LR"
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 DNAwalker-PT-05track28LR, 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 r057-tall-165254768400406"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/DNAwalker-PT-05track28LR.tgz
mv DNAwalker-PT-05track28LR 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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;