About the Execution of Marcie+red for Szymanski-PT-b08
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 6560.672 | 3600000.00 | 3643262.00 | 6970.40 | ?FF?TF?FFFT??T?? | normal |
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.r490-tall-167912708700473.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.qcow2 cluster_size=65536 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5348
Executing tool marciexred
Input is Szymanski-PT-b08, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r490-tall-167912708700473
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 4.0M
-rw-r--r-- 1 mcc users 7.3K Feb 26 16:54 CTLCardinality.txt
-rw-r--r-- 1 mcc users 81K Feb 26 16:54 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.6K Feb 26 16:53 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Feb 26 16:53 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.7K Feb 25 17:19 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 17:19 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Feb 25 17:19 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Feb 25 17:19 LTLFireability.xml
-rw-r--r-- 1 mcc users 7.3K Feb 26 16:57 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 70K Feb 26 16:57 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.0K Feb 26 16:56 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 66K Feb 26 16:56 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 17:19 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Feb 25 17:19 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 4 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 3.7M Mar 5 18:23 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 Szymanski-PT-b08-CTLCardinality-00
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-01
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-02
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-03
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-04
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-05
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-06
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-07
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-08
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-09
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-10
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-11
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-12
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-13
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-14
FORMULA_NAME Szymanski-PT-b08-CTLCardinality-15
=== Now, execution of the tool begins
BK_START 1679263184830
bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=marciexred
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Szymanski-PT-b08
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-19 21:59:46] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -timeout, 360, -rebuildPNML]
[2023-03-19 21:59:46] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-19 21:59:46] [INFO ] Load time of PNML (sax parser for PT used): 273 ms
[2023-03-19 21:59:46] [INFO ] Transformed 568 places.
[2023-03-19 21:59:46] [INFO ] Transformed 8320 transitions.
[2023-03-19 21:59:46] [INFO ] Parsed PT model containing 568 places and 8320 transitions and 33408 arcs in 450 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 25 ms.
Deduced a syphon composed of 260 places in 28 ms
Reduce places removed 260 places and 256 transitions.
FORMULA Szymanski-PT-b08-CTLCardinality-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-b08-CTLCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 46 out of 308 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 308/308 places, 8064/8064 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 306 transition count 8064
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 3 place count 305 transition count 7936
Iterating global reduction 1 with 1 rules applied. Total rules applied 4 place count 305 transition count 7936
Applied a total of 4 rules in 191 ms. Remains 305 /308 variables (removed 3) and now considering 7936/8064 (removed 128) transitions.
[2023-03-19 21:59:47] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
// Phase 1: matrix 2732 rows 305 cols
[2023-03-19 21:59:47] [INFO ] Computed 1 place invariants in 63 ms
[2023-03-19 21:59:47] [INFO ] Implicit Places using invariants in 739 ms returned []
[2023-03-19 21:59:47] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2023-03-19 21:59:47] [INFO ] Invariant cache hit.
[2023-03-19 21:59:48] [INFO ] State equation strengthened by 147 read => feed constraints.
[2023-03-19 21:59:53] [INFO ] Implicit Places using invariants and state equation in 5774 ms returned []
Implicit Place search using SMT with State Equation took 6557 ms to find 0 implicit places.
[2023-03-19 21:59:53] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2023-03-19 21:59:53] [INFO ] Invariant cache hit.
[2023-03-19 21:59:55] [INFO ] Dead Transitions using invariants and state equation in 1901 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 305/308 places, 7936/8064 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 8653 ms. Remains : 305/308 places, 7936/8064 transitions.
Support contains 46 out of 305 places after structural reductions.
[2023-03-19 21:59:56] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
[2023-03-19 21:59:56] [INFO ] Flatten gal took : 472 ms
[2023-03-19 21:59:56] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA Szymanski-PT-b08-CTLCardinality-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-b08-CTLCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-b08-CTLCardinality-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Szymanski-PT-b08-CTLCardinality-01 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 21:59:56] [INFO ] Flatten gal took : 334 ms
[2023-03-19 21:59:57] [INFO ] Input system was already deterministic with 7936 transitions.
Support contains 23 out of 305 places (down from 46) after GAL structural reductions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 278 ms. (steps per millisecond=35 ) properties (out of 18) seen :5
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 65 ms. (steps per millisecond=153 ) properties (out of 13) seen :1
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 12) seen :1
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 28 ms. (steps per millisecond=357 ) properties (out of 11) seen :0
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 34 ms. (steps per millisecond=294 ) properties (out of 11) seen :1
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 36 ms. (steps per millisecond=277 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 38 ms. (steps per millisecond=263 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10000 steps, including 2 resets, run finished after 32 ms. (steps per millisecond=312 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 10) seen :1
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 27 ms. (steps per millisecond=370 ) properties (out of 9) seen :0
Running SMT prover for 9 properties.
[2023-03-19 21:59:57] [INFO ] Flow matrix only has 2732 transitions (discarded 5204 similar events)
[2023-03-19 21:59:57] [INFO ] Invariant cache hit.
[2023-03-19 21:59:58] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 2 ms returned sat
[2023-03-19 21:59:58] [INFO ] After 166ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:9
[2023-03-19 21:59:58] [INFO ] [Nat]Absence check using 0 positive and 1 generalized place invariants in 3 ms returned sat
[2023-03-19 21:59:58] [INFO ] After 719ms SMT Verify possible using all constraints in natural domain returned unsat :9 sat :0
Fused 9 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 1 ms.
Successfully simplified 9 atomic propositions for a total of 9 simplifications.
FORMULA Szymanski-PT-b08-CTLCardinality-09 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 21:59:59] [INFO ] Flatten gal took : 197 ms
[2023-03-19 21:59:59] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA Szymanski-PT-b08-CTLCardinality-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 21:59:59] [INFO ] Flatten gal took : 214 ms
[2023-03-19 21:59:59] [INFO ] Input system was already deterministic with 7936 transitions.
Support contains 6 out of 305 places (down from 10) after GAL structural reductions.
Computed a total of 11 stabilizing places and 2304 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 148 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 149 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:00] [INFO ] Flatten gal took : 180 ms
[2023-03-19 22:00:00] [INFO ] Flatten gal took : 199 ms
[2023-03-19 22:00:00] [INFO ] Input system was already deterministic with 7936 transitions.
Starting structural reductions in LTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 29 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 31 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:01] [INFO ] Flatten gal took : 173 ms
[2023-03-19 22:00:01] [INFO ] Flatten gal took : 205 ms
[2023-03-19 22:00:01] [INFO ] Input system was already deterministic with 7936 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 286 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 287 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:02] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
[2023-03-19 22:00:02] [INFO ] Flatten gal took : 169 ms
FORMULA Szymanski-PT-b08-CTLCardinality-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-19 22:00:02] [INFO ] Flatten gal took : 190 ms
[2023-03-19 22:00:02] [INFO ] Input system was already deterministic with 7936 transitions.
Support contains 0 out of 305 places (down from 2) after GAL structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 27 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 27 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:02] [INFO ] Flatten gal took : 168 ms
[2023-03-19 22:00:03] [INFO ] Flatten gal took : 183 ms
[2023-03-19 22:00:03] [INFO ] Input system was already deterministic with 7936 transitions.
Starting structural reductions in LTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 25 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 26 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:03] [INFO ] Flatten gal took : 169 ms
[2023-03-19 22:00:03] [INFO ] Flatten gal took : 189 ms
[2023-03-19 22:00:04] [INFO ] Input system was already deterministic with 7936 transitions.
Starting structural reductions in LTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 25 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 25 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:04] [INFO ] Flatten gal took : 165 ms
[2023-03-19 22:00:04] [INFO ] Flatten gal took : 188 ms
[2023-03-19 22:00:04] [INFO ] Input system was already deterministic with 7936 transitions.
Starting structural reductions in SI_CTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 179 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in SI_CTL mode , in 1 iterations and 179 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:05] [INFO ] Flatten gal took : 166 ms
[2023-03-19 22:00:05] [INFO ] Flatten gal took : 174 ms
[2023-03-19 22:00:05] [INFO ] Input system was already deterministic with 7936 transitions.
Starting structural reductions in LTL mode, iteration 0 : 305/305 places, 7936/7936 transitions.
Applied a total of 0 rules in 27 ms. Remains 305 /305 variables (removed 0) and now considering 7936/7936 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 27 ms. Remains : 305/305 places, 7936/7936 transitions.
[2023-03-19 22:00:05] [INFO ] Flatten gal took : 168 ms
[2023-03-19 22:00:06] [INFO ] Flatten gal took : 180 ms
[2023-03-19 22:00:06] [INFO ] Input system was already deterministic with 7936 transitions.
[2023-03-19 22:00:06] [INFO ] Flatten gal took : 195 ms
[2023-03-19 22:00:06] [INFO ] Flatten gal took : 201 ms
[2023-03-19 22:00:06] [INFO ] Export to MCC of 7 properties in file /home/mcc/execution/CTLCardinality.sr.xml took 1 ms.
[2023-03-19 22:00:06] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 305 places, 7936 transitions and 31616 arcs took 39 ms.
Total runtime 20664 ms.
There are residual formulas that ITS could not solve within timeout
timeout --kill-after=10s --signal=SIGINT 1m for testing only
Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets
authors: Alex Tovchigrechko (IDD package and CTL model checking)
Martin Schwarick (Symbolic numerical analysis and CSL model checking)
Christian Rohr (Simulative and approximative numerical model checking)
marcie@informatik.tu-cottbus.de
called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=CTLCardinality.xml --memory=6 --mcc-mode
parse successfull
net created successfully
Net: Petri
(NrP: 305 NrTr: 7936 NrArc: 31616)
parse formulas
formulas created successfully
place and transition orderings generation:0m 0.254sec
net check time: 0m 0.004sec
init dd package: 0m 2.668sec
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393216 kB
MemFree: 9580652 kB
After kill :
MemTotal: 16393216 kB
MemFree: 16093024 kB
BK_TIME_CONFINEMENT_REACHED
--------------------
content from stderr:
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
+ export PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ PYTHONPATH=/home/mcc/BenchKit/itstools/pylibs
+ export LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
+ LD_LIBRARY_PATH=/home/mcc/BenchKit/itstools/pylibs:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination CTLCardinality -timeout 360 -rebuildPNML
check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok
initing FirstDep: 0m 0.108sec
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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="Szymanski-PT-b08"
export BK_EXAMINATION="CTLCardinality"
export BK_TOOL="marciexred"
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 marciexred"
echo " Input is Szymanski-PT-b08, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r490-tall-167912708700473"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Szymanski-PT-b08.tgz
mv Szymanski-PT-b08 execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;