Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r030-oct2-167813615200536.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
...................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool gold2022
Input is BART-COL-020, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r030-oct2-167813615200536
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 604K
-rw-r--r-- 1 mcc users 7.1K Feb 26 04:55 CTLCardinality.txt
-rw-r--r-- 1 mcc users 64K Feb 26 04:55 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.0K Feb 26 04:23 CTLFireability.txt
-rw-r--r-- 1 mcc users 54K Feb 26 04:23 CTLFireability.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:22 equiv_pt
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 5 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 3.8K Feb 25 15:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Feb 25 15:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Feb 25 15:35 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 15:35 LTLFireability.xml
-rw-r--r-- 1 mcc users 195K Mar 5 18:22 model.pnml
-rw-r--r-- 1 mcc users 9.2K Feb 26 06:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 79K Feb 26 06:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.4K Feb 26 05:48 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 73K Feb 26 05:48 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 15:35 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 15:35 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 BART-COL-020-CTLFireability-00
FORMULA_NAME BART-COL-020-CTLFireability-01
FORMULA_NAME BART-COL-020-CTLFireability-02
FORMULA_NAME BART-COL-020-CTLFireability-03
FORMULA_NAME BART-COL-020-CTLFireability-04
FORMULA_NAME BART-COL-020-CTLFireability-05
FORMULA_NAME BART-COL-020-CTLFireability-06
FORMULA_NAME BART-COL-020-CTLFireability-07
FORMULA_NAME BART-COL-020-CTLFireability-08
FORMULA_NAME BART-COL-020-CTLFireability-09
FORMULA_NAME BART-COL-020-CTLFireability-10
FORMULA_NAME BART-COL-020-CTLFireability-11
FORMULA_NAME BART-COL-020-CTLFireability-12
FORMULA_NAME BART-COL-020-CTLFireability-13
FORMULA_NAME BART-COL-020-CTLFireability-14
FORMULA_NAME BART-COL-020-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1678449365909

gold2022
Got BK_BIN_PATH=/home/mcc/BenchKit/bin/
---> gold2022 --- 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: 3589

*************************************
* TAPAAL verifying CTLFireability *
*************************************
TEMPDIR=/home/mcc/BenchKit/bin/tmp
QF=/home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT
MF=/home/mcc/BenchKit/bin/tmp/tmp.0OW82ux8Wr
Time left: 3589
---------------------------------------------------
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 ./CTLFireability.xml
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-15
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-14
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-13
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-12
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-11
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-10
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-09
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-08
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-07
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-06
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-05
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-04
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-03
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-02
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-01
Warning: CPN OverApproximation is only available for Reachability queries without deadlock, negated fireability and UpperBounds, skipping BART-COL-020-CTLFireability-00
WARNING: Could not run CPN over-approximation on any queries, terminating.
Time left: 3589
---------------------------------------------------
Step 0: Parallel Simplification
---------------------------------------------------
Doing parallel simplification (16 in total)
Total simplification timout is 718 -- reduction timeout is 299
timeout 3589 /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.nReoBjZ9GT --write-reduced /home/mcc/BenchKit/bin/tmp/tmp.0OW82ux8Wr -x 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 ./model.pnml ./CTLFireability.xml

Time left: 3588

---------------------------------------------------
Step 1: Parallel processing
---------------------------------------------------
Doing parallel verification of individual queries (16 in total)
Each query is verified by 4 parallel strategies for 299 seconds
------------------- QUERY 1 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is NOT satisfied.

Spent 0.049559 on verification
@@@0.06,60028@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 1 -n

FORMULA BART-COL-020-CTLFireability-07 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 3587
------------------- QUERY 2 ----------------------
No solution found
Command terminated by signal 9
@@@77.44,8219988@@@
Command terminated by signal 9
@@@188.20,13220864@@@


Time left: 3286
------------------- QUERY 3 ----------------------
No solution found
Command terminated by signal 9
@@@274.52,4257664@@@


Time left: 2983
------------------- QUERY 4 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is satisfied.

Spent 0.050365 on verification
@@@0.08,59892@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 4 -n

FORMULA BART-COL-020-CTLFireability-13 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2983
------------------- QUERY 5 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is NOT satisfied.

Spent 0.047014 on verification
@@@0.06,59896@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 5 -n

FORMULA BART-COL-020-CTLFireability-00 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2983
------------------- QUERY 6 ----------------------
No solution found
Command terminated by signal 9
@@@68.87,5351572@@@
Command terminated by signal 9
@@@114.65,8473256@@@


Time left: 2680
------------------- QUERY 7 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is satisfied.

Spent 0.060619 on verification
@@@0.12,60084@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 7 -n

FORMULA BART-COL-020-CTLFireability-03 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2680
------------------- QUERY 8 ----------------------
No solution found
Command terminated by signal 9
@@@59.45,6513696@@@
Command terminated by signal 9
@@@100.59,8566076@@@
Command terminated by signal 9
@@@294.24,15806528@@@


Time left: 2379
------------------- QUERY 9 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is NOT satisfied.

Spent 0.078247 on verification
@@@0.09,59732@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 9 -n

FORMULA BART-COL-020-CTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2379
------------------- QUERY 10 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is NOT satisfied.

Spent 0.103791 on verification
@@@0.11,59840@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 10 -n

FORMULA BART-COL-020-CTLFireability-11 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2378
------------------- QUERY 11 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is satisfied.

Spent 0.074427 on verification
@@@0.11,59828@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 11 -n

FORMULA BART-COL-020-CTLFireability-04 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2378
------------------- QUERY 12 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is NOT satisfied.

Spent 0.069132 on verification
@@@0.08,59884@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 12 -n

FORMULA BART-COL-020-CTLFireability-01 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2378
------------------- QUERY 13 ----------------------
No solution found
Command terminated by signal 9
@@@90.83,7646576@@@
Command terminated by signal 9
@@@197.28,11967072@@@


Time left: 2076
------------------- QUERY 14 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is NOT satisfied.

Spent 0.086123 on verification
@@@0.11,59924@@@


Query index 0 was solved
Query is NOT satisfied.

Spent 0.088543 on verification
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 14 -n

FORMULA BART-COL-020-CTLFireability-14 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2075
------------------- QUERY 15 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is satisfied.

Spent 0.069175 on verification
@@@0.08,59972@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 15 -n

FORMULA BART-COL-020-CTLFireability-12 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2075
------------------- QUERY 16 ----------------------
Solution found by parallel processing (step 1)


Query index 0 was solved
Query is satisfied.

Spent 0.05824 on verification
@@@0.06,59960@@@
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.0OW82ux8Wr /home/mcc/BenchKit/bin/tmp/tmp.nReoBjZ9GT --binary-query-io 1 -x 16 -n

FORMULA BART-COL-020-CTLFireability-06 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT STATE_COMPRESSION SAT_SMT STUBBORN_SETS CTL_CZERO
Time left: 2074
---------------------------------------------------
Step 2: Sequential processing
---------------------------------------------------
Remaining 5 queries are verified sequentially.
Each query is verified for a dynamic timeout (at least 598 seconds)
Time left: 2074
------------------- QUERY 2 ----------------------
Running query 2 for 598 seconds. Remaining: 5 queries and 2074 seconds
No solution found
Command terminated by signal 9
@@@167.54,13651524@@@


Time left: 1474
------------------- QUERY 3 ----------------------
Running query 3 for 598 seconds. Remaining: 4 queries and 1474 seconds
No solution found
Command terminated by signal 9
@@@594.52,8213292@@@


Time left: 874
------------------- QUERY 6 ----------------------
Running query 6 for 598 seconds. Remaining: 3 queries and 874 seconds
No solution found
Command terminated by signal 9
@@@120.32,8912472@@@
Command terminated by signal 9
@@@420.83,16145432@@@


Time left: 452
------------------- QUERY 8 ----------------------
Time left: 452
---------------------------------------------------
Step 4: Random Parallel processing
---------------------------------------------------
Doing random parallel verification of individual queries (5 in total)
Each query is verified by 4 parallel strategies for 90 seconds
------------------- QUERY 2 ----------------------
No solution found
Command terminated by signal 9
@@@38.49,4238720@@@
Command terminated by signal 9
@@@57.16,5716008@@@


Time left: 359
------------------- QUERY 3 ----------------------
No solution found



Time left: 267
------------------- QUERY 6 ----------------------
No solution found
Command terminated by signal 9
@@@56.09,4976280@@@


Time left: 175
------------------- QUERY 8 ----------------------
No solution found
Command terminated by signal 9
@@@65.50,4144156@@@
Command terminated by signal 9
@@@80.38,5446760@@@


Time left: 81
------------------- QUERY 13 ----------------------
No solution found
Command terminated by signal 9
@@@44.59,4167540@@@
Command terminated by signal 9
@@@67.31,5543088@@@


Time left: -3
Out of time, terminating!
terminated-with-cleanup

BK_STOP 1678452958514

--------------------
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="BART-COL-020"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="gold2022"
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 2-5348"
echo " Executing tool gold2022"
echo " Input is BART-COL-020, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r030-oct2-167813615200536"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/BART-COL-020.tgz
mv BART-COL-020 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;