fond
Model Checking Contest 2020
10th edition, Paris, France, June 23, 2020
Execution of r184-oct2-158987928500426
Last Updated
Jun 28, 2020

About the Execution of ITS-LoLa for JoinFreeModules-PT-0050

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
15716.300 3600000.00 365815.00 53186.00 ??F?T??F???T?TF? normal

Execution Chart

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

Trace from the execution

Formatting '/data/fko/mcc2020-input.r184-oct2-158987928500426.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fko/mcc2020-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 itslola
Input is JoinFreeModules-PT-0050, examination is LTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r184-oct2-158987928500426
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 464K
-rw-r--r-- 1 mcc users 4.2K Apr 7 18:57 CTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Apr 7 18:57 CTLCardinality.xml
-rw-r--r-- 1 mcc users 2.6K Apr 6 20:40 CTLFireability.txt
-rw-r--r-- 1 mcc users 17K Apr 6 20:40 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 24 05:37 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 5.7K Mar 24 05:37 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Apr 14 12:40 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 28 14:01 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.0K Apr 14 12:40 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 28 14:01 LTLFireability.xml
-rw-r--r-- 1 mcc users 3.2K Apr 6 04:09 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 16K Apr 6 04:09 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Apr 5 10:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 16K Apr 5 10:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Apr 6 20:24 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 6 20:24 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 equiv_col
-rw-r--r-- 1 mcc users 5 Mar 24 05:37 instance
-rw-r--r-- 1 mcc users 6 Mar 24 05:37 iscolored
-rw-r--r-- 1 mcc users 282K Mar 24 05:37 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 JoinFreeModules-PT-0050-00
FORMULA_NAME JoinFreeModules-PT-0050-01
FORMULA_NAME JoinFreeModules-PT-0050-02
FORMULA_NAME JoinFreeModules-PT-0050-03
FORMULA_NAME JoinFreeModules-PT-0050-04
FORMULA_NAME JoinFreeModules-PT-0050-05
FORMULA_NAME JoinFreeModules-PT-0050-06
FORMULA_NAME JoinFreeModules-PT-0050-07
FORMULA_NAME JoinFreeModules-PT-0050-08
FORMULA_NAME JoinFreeModules-PT-0050-09
FORMULA_NAME JoinFreeModules-PT-0050-10
FORMULA_NAME JoinFreeModules-PT-0050-11
FORMULA_NAME JoinFreeModules-PT-0050-12
FORMULA_NAME JoinFreeModules-PT-0050-13
FORMULA_NAME JoinFreeModules-PT-0050-14
FORMULA_NAME JoinFreeModules-PT-0050-15

=== Now, execution of the tool begins

BK_START 1591207196349

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
[2020-06-03 17:59:57] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, LTLFireability, -z3path, /home/mcc/BenchKit//z3/bin/z3, -yices2path, /home/mcc/BenchKit//yices/bin/yices, -timeout, 3600, -rebuildPNML]
[2020-06-03 17:59:57] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2020-06-03 17:59:58] [INFO ] Load time of PNML (sax parser for PT used): 66 ms
[2020-06-03 17:59:58] [INFO ] Transformed 251 places.
[2020-06-03 17:59:58] [INFO ] Transformed 401 transitions.
[2020-06-03 17:59:58] [INFO ] Parsed PT model containing 251 places and 401 transitions in 123 ms.
Reduce places removed 1 places and 0 transitions.
Parsed 16 properties from file /home/mcc/execution/LTLFireability.xml in 16 ms.
Working with output stream class java.io.PrintStream
Finished random walk after 6417 steps, including 0 resets, run visited all 37 properties in 46 ms. (steps per millisecond=139 )
[2020-06-03 17:59:58] [INFO ] Initial state reduction rules for CTL removed 6 formulas.
[2020-06-03 17:59:58] [INFO ] Flatten gal took : 63 ms
FORMULA JoinFreeModules-PT-0050-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0050-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0050-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0050-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0050-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA JoinFreeModules-PT-0050-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2020-06-03 17:59:58] [INFO ] Flatten gal took : 20 ms
[2020-06-03 17:59:58] [INFO ] Export to MCC properties in file /home/mcc/execution/LTLFireability.sr.xml took 2 ms.
[2020-06-03 17:59:58] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml took 6 ms.
info: Time: 3600 - MCC
vrfy: Checking LTLFireability @ JoinFreeModules-PT-0050 @ 3570 seconds
vrfy: finished
info: timeLeft: 0
rslt: Output for LTLFireability @ JoinFreeModules-PT-0050

{
"build":
{
"architecture": 64,
"assertions": false,
"build_hostname": "mcc2019",
"build_system": "x86_64-unknown-linux-gnu",
"optimizations": true,
"package_version": "2.0",
"svn_version": "3189M"
},
"call":
{
"exec_host": "mcc2020",
"markinglimit": null,
"parameters":
[
"--pnmlnet",
"model.pnml",
"--xmlformula",
"--formula=LTLFireability.xml",
"--mcc",
"--donotcomputecapacities",
"--encoder=simplecompressed",
"--check=modelchecking",
"--stubborn=deletion",
"--stateequation=par",
"--timelimit=3570",
"--localtimelimit=0",
"--preference=force_ltl",
"--json=LTLFireability.json",
"--jsoninclude=formula,formulastat,net"
],
"starttime": "Wed Jun 3 17:59:58 2020
",
"timelimit": 3570
},
"child": null,
"exit":
{
"error": null,
"memory": 15887092,
"runtime": 3570.000000,
"signal": null,
"timelimitreached": true
},
"files":
{
"formula": "LTLFireability.xml",
"net": "model.pnml"
},
"formula":
{
"skeleton": "(X((G(**) OR **)) AND (G(**) OR G(**))) : (G(*) OR ((** U **) AND F(**))) : X(G((F(**) OR X(**)))) : F(G(*)) : F((F(G(**)) OR (F(**) U X(G(**))))) : G(*) : X(X(G(*))) : F((X(**) AND **)) : F(G(*)) : (F(**) U ((X(X(**)) U **) AND **))"
},
"net":
{
"arcs": 1150,
"conflict_clusters": 201,
"places": 250,
"places_significant": 200,
"singleton_clusters": 0,
"transitions": 401
},
"result":
{
"preliminary_value": "unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown "
},
"task":
{
"type": "compound"
}
}
lola: LoLA will run for 3570 seconds at most (--timelimit)
lola: NET
lola: input: PNML file (--pnml)
lola: reading net from model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file model.pnml
lola: 651/268435456 symbol table entries, 0 collisions
lola: preprocessing...
lola: Size of bit vector: 8000
lola: finding significant places
lola: 250 places, 401 transitions, 200 significant places
lola: compute conflict clusters
lola: computed conflict clusters
lola: Computing conflicting sets
lola: Computing back conflicting sets
lola: TASK
lola: Reading formula in XML format (--xmlformula)
lola: reading pnml
lola: reading formula from LTLFireability.xml
lola: (X ((G ((2 <= p62)) OR (1 <= p182))) AND (G ((3 <= p240)) OR G ((p30 <= 4)))) : (NOT(F ((5 <= p44))) OR (((1 <= p177) U (5 <= p44)) AND F ((3 <= p15)))) : G (X ((F ((3 <= p40)) OR X ((5 <= p105))))) : G (F (NOT(((NOT(X (NOT(G ((3 <= p125))))) OR (2 <= p96)) U F ((2 <= p96)))))) : F ((F (G ((5 <= p59))) OR (F ((3 <= p173)) U X (G ((1 <= p227)))))) : G (NOT(F ((4 <= p163)))) : X (G (NOT(X ((5 <= p139))))) : ((F (X (NOT(F (X ((5 <= p230)))))) AND (4 <= p168)) U F ((X ((5 <= p230)) AND (4 <= p168)))) : F (X (NOT(X (G (F (((1 <= p137) U (p245 <= 4)))))))) : (F ((4 <= p123)) U ((X (X ((p247 <= 1))) U (4 <= p123)) AND (4 <= p123)))
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:335
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:300
lola: rewrite Frontend/Parser/formula_rewrite.k:422
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:374
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:350
lola: rewrite Frontend/Parser/formula_rewrite.k:335
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:353
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:335
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:356
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:422
lola: rewrite Frontend/Parser/formula_rewrite.k:434
lola: rewrite Frontend/Parser/formula_rewrite.k:377
lola: rewrite Frontend/Parser/formula_rewrite.k:329
lola: rewrite Frontend/Parser/formula_rewrite.k:332
lola: rewrite Frontend/Parser/formula_rewrite.k:297
lola: rewrite Frontend/Parser/formula_rewrite.k:380
lola: rewrite Frontend/Parser/formula_rewrite.k:347
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 356 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: (X ((G ((2 <= p62)) OR (1 <= p182))) AND (G ((3 <= p240)) OR G ((p30 <= 4))))
lola: ========================================
lola: SUBTASK
lola: checking a Boolean combination of formulas
lola: RUNNING
lola: subprocess 0 will run for 356 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: G ((p30 <= 4))
lola: ========================================
lola: SUBTASK
lola: checking LTL
lola: transforming LTL-Formula into a Büchi-Automaton
lola: processed formula: G ((p30 <= 4))
lola: processed formula length: 14
lola: 34 rewrites
lola: closed formula file LTLFireability.xml
lola: the resulting Büchi automaton has 2 states
lola: STORE
lola: using a simple compression encoder (--encoder=simplecompressed)
lola: using a prefix tree store (--store=prefix)
lola: using ltl preserving stubborn set method with deletion algorithm (--stubborn=deletion)
lola: using ltl preserving stubborn set method with insertion algorithm(--stubborn=tarjan)
lola: SEARCH
lola: RUNNING
lola: 828027 markings, 972875 edges, 165605 markings/sec, 0 secs
lola: 1644235 markings, 1926202 edges, 163242 markings/sec, 5 secs
lola: 2460491 markings, 2879316 edges, 163251 markings/sec, 10 secs
lola: 3272361 markings, 3826612 edges, 162374 markings/sec, 15 secs
lola: 4076711 markings, 4765068 edges, 160870 markings/sec, 20 secs
lola: 4882806 markings, 5705736 edges, 161219 markings/sec, 25 secs
lola: 5688219 markings, 6645479 edges, 161083 markings/sec, 30 secs
lola: 6492359 markings, 7583756 edges, 160828 markings/sec, 35 secs
lola: 7286641 markings, 8511945 edges, 158856 markings/sec, 40 secs
lola: 8076590 markings, 9433599 edges, 157990 markings/sec, 45 secs
lola: 8865860 markings, 10354494 edges, 157854 markings/sec, 50 secs
lola: 9651081 markings, 11270692 edges, 157044 markings/sec, 55 secs
lola: 10437957 markings, 12188803 edges, 157375 markings/sec, 60 secs
lola: 11228987 markings, 13111756 edges, 158206 markings/sec, 65 secs
lola: 12019429 markings, 14033959 edges, 158088 markings/sec, 70 secs
lola: 12809391 markings, 14955749 edges, 157992 markings/sec, 75 secs
lola: 13598924 markings, 15876937 edges, 157907 markings/sec, 80 secs
lola: 14387359 markings, 16796831 edges, 157687 markings/sec, 85 secs
lola: 15185025 markings, 17728137 edges, 159533 markings/sec, 90 secs
lola: 15990959 markings, 18668481 edges, 161187 markings/sec, 95 secs
lola: 16793924 markings, 19605621 edges, 160593 markings/sec, 100 secs
lola: 17589717 markings, 20535361 edges, 159159 markings/sec, 105 secs
lola: 18382858 markings, 21460834 edges, 158628 markings/sec, 110 secs
lola: 19172796 markings, 22382497 edges, 157988 markings/sec, 115 secs
lola: 19971818 markings, 23314862 edges, 159804 markings/sec, 120 secs
lola: 20769287 markings, 24245333 edges, 159494 markings/sec, 125 secs
lola: 21560540 markings, 25169503 edges, 158251 markings/sec, 130 secs
lola: 22348714 markings, 26089359 edges, 157635 markings/sec, 135 secs
lola: 23154685 markings, 27031144 edges, 161194 markings/sec, 140 secs
lola: 23957491 markings, 27968558 edges, 160561 markings/sec, 145 secs
lola: 24750139 markings, 28894173 edges, 158530 markings/sec, 150 secs
lola: 25549834 markings, 29827286 edges, 159939 markings/sec, 155 secs
lola: 26350088 markings, 30760999 edges, 160051 markings/sec, 160 secs
lola: 27143884 markings, 31687208 edges, 158759 markings/sec, 165 secs
lola: 27932862 markings, 32607731 edges, 157796 markings/sec, 170 secs
lola: 28731856 markings, 33540988 edges, 159799 markings/sec, 175 secs
lola: 29526607 markings, 34468810 edges, 158950 markings/sec, 180 secs
lola: 30324554 markings, 35399862 edges, 159589 markings/sec, 185 secs
lola: 31118116 markings, 36325806 edges, 158712 markings/sec, 190 secs
lola: 31903581 markings, 37242273 edges, 157093 markings/sec, 195 secs
lola: 32693012 markings, 38164178 edges, 157886 markings/sec, 200 secs
lola: 33480421 markings, 39083068 edges, 157482 markings/sec, 205 secs
lola: 34268627 markings, 40003802 edges, 157641 markings/sec, 210 secs
lola: 35057213 markings, 40924907 edges, 157717 markings/sec, 215 secs
lola: 35842704 markings, 41842472 edges, 157098 markings/sec, 220 secs
lola: 36629121 markings, 42760021 edges, 157283 markings/sec, 225 secs
lola: 37419928 markings, 43682779 edges, 158161 markings/sec, 230 secs
lola: 38205798 markings, 44599742 edges, 157174 markings/sec, 235 secs
lola: 38997257 markings, 45523174 edges, 158292 markings/sec, 240 secs
lola: 39783716 markings, 46441171 edges, 157292 markings/sec, 245 secs
lola: 40566565 markings, 47355670 edges, 156570 markings/sec, 250 secs
lola: 41361483 markings, 48283220 edges, 158984 markings/sec, 255 secs
lola: 42161081 markings, 49216182 edges, 159920 markings/sec, 260 secs
lola: 42955964 markings, 50143706 edges, 158977 markings/sec, 265 secs
lola: 43748850 markings, 51068957 edges, 158577 markings/sec, 270 secs
lola: 44538111 markings, 51990871 edges, 157852 markings/sec, 275 secs
lola: 45301761 markings, 52882089 edges, 152730 markings/sec, 280 secs
lola: 45958705 markings, 53649900 edges, 131389 markings/sec, 285 secs
lola: 46555236 markings, 54346273 edges, 119306 markings/sec, 290 secs
lola: 46555236 markings, 54346273 edges, 0 markings/sec, 295 secs
lola: 46776948 markings, 54605211 edges, 44342 markings/sec, 300 secs
lola: 47548165 markings, 55505839 edges, 154243 markings/sec, 305 secs
lola: 47843234 markings, 55850131 edges, 59014 markings/sec, 310 secs
lola: 47883223 markings, 55896785 edges, 7998 markings/sec, 315 secs
lola: 48383965 markings, 56481074 edges, 100148 markings/sec, 320 secs
lola: 48383965 markings, 56481074 edges, 0 markings/sec, 325 secs
lola: 48394136 markings, 56492965 edges, 2034 markings/sec, 330 secs
lola: 49033450 markings, 57238892 edges, 127863 markings/sec, 335 secs
lola: local time limit reached - aborting
lola: local time limit reached - aborting
lola:
preliminary result: unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown
lola:
preliminary result: unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown
lola: memory consumption: 15893872 KB
lola: time consumption: 360 seconds
lola: print data as JSON (--json)
lola: writing JSON to LTLFireability.json
lola: closed JSON file LTLFireability.json
lola: time limit reached - aborting
lola:
preliminary result: unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown
lola: memory consumption: 15887092 KB
lola: time consumption: 3570 seconds
lola: print data as JSON (--json)
lola: writing JSON to LTLFireability.json
lola: closed JSON file LTLFireability.json
rslt: finished
TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16427364 kB
MemFree: 164708 kB
After kill :
MemTotal: 16427364 kB
MemFree: 163700 kB

--------------------
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="JoinFreeModules-PT-0050"
export BK_EXAMINATION="LTLFireability"
export BK_TOOL="itslola"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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 itslola"
echo " Input is JoinFreeModules-PT-0050, examination is LTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r184-oct2-158987928500426"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/JoinFreeModules-PT-0050.tgz
mv JoinFreeModules-PT-0050 execution
cd execution
if [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "UpperBounds" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] || [ "LTLFireability" = "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 [ "LTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "LTLFireability" != "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 "LTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property LTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "LTLFireability.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 '' LTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "LTLFireability" = "ReachabilityDeadlock" ] || [ "LTLFireability" = "QuasiLiveness" ] || [ "LTLFireability" = "StableMarking" ] || [ "LTLFireability" = "Liveness" ] || [ "LTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME LTLFireability"
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 ;