fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r511-tall-167912735700160
Last Updated
May 14, 2023

About the Execution of 2022-gold for ViralEpidemic-PT-S03D1C1A06

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
1315.903 58081.00 72500.00 266.30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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.r511-tall-167912735700160.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)
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
=====================================================================
Generated by BenchKit 2-5348
Executing tool gold2022
Input is ViralEpidemic-PT-S03D1C1A06, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r511-tall-167912735700160
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.5M
-rw-r--r-- 1 mcc users 8.1K Feb 25 20:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K Feb 25 20:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.2K Feb 25 20:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Feb 25 20:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:41 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 4.6K Feb 25 17:26 LTLCardinality.txt
-rw-r--r-- 1 mcc users 28K Feb 25 17:26 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.8K Feb 25 17:26 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Feb 25 17:26 LTLFireability.xml
-rw-r--r-- 1 mcc users 17K Feb 25 20:43 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 148K Feb 25 20:43 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K Feb 25 20:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 54K Feb 25 20:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Feb 25 17:26 UpperBounds.txt
-rw-r--r-- 1 mcc users 4.0K Feb 25 17:26 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 11 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 3.1M 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 positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-00
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-01
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-02
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-03
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-04
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-05
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-06
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-07
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-08
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-09
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-10
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-11
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-12
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-13
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-14
FORMULA_NAME ViralEpidemic-PT-S03D1C1A06-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1679323654459

Running Version 202205111006
[2023-03-20 14:47:35] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-20 14:47:35] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-20 14:47:36] [INFO ] Load time of PNML (sax parser for PT used): 413 ms
[2023-03-20 14:47:36] [INFO ] Transformed 5466 places.
[2023-03-20 14:47:36] [INFO ] Transformed 7651 transitions.
[2023-03-20 14:47:36] [INFO ] Parsed PT model containing 5466 places and 7651 transitions in 581 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 7 ms.
// Phase 1: matrix 7651 rows 5466 cols
[2023-03-20 14:47:37] [INFO ] Invariants computation overflowed in 1502 ms
Incomplete random walk after 10000 steps, including 144 resets, run finished after 479 ms. (steps per millisecond=20 ) properties (out of 16) seen :15
Incomplete Best-First random walk after 10001 steps, including 6 resets, run finished after 332 ms. (steps per millisecond=30 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 7 resets, run finished after 329 ms. (steps per millisecond=30 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 8 resets, run finished after 361 ms. (steps per millisecond=27 ) properties (out of 16) seen :11
Incomplete Best-First random walk after 10001 steps, including 12 resets, run finished after 353 ms. (steps per millisecond=28 ) properties (out of 16) seen :9
Incomplete Best-First random walk after 10001 steps, including 7 resets, run finished after 305 ms. (steps per millisecond=32 ) properties (out of 16) seen :9
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 315 ms. (steps per millisecond=31 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 6 resets, run finished after 295 ms. (steps per millisecond=33 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 301 ms. (steps per millisecond=33 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 304 ms. (steps per millisecond=32 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10000 steps, including 4 resets, run finished after 295 ms. (steps per millisecond=33 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 4 resets, run finished after 300 ms. (steps per millisecond=33 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 8 resets, run finished after 295 ms. (steps per millisecond=33 ) properties (out of 16) seen :9
Incomplete Best-First random walk after 10001 steps, including 5 resets, run finished after 303 ms. (steps per millisecond=33 ) properties (out of 16) seen :9
Incomplete Best-First random walk after 10001 steps, including 7 resets, run finished after 296 ms. (steps per millisecond=33 ) properties (out of 16) seen :8
Incomplete Best-First random walk after 10001 steps, including 5 resets, run finished after 297 ms. (steps per millisecond=33 ) properties (out of 16) seen :9
Incomplete Best-First random walk after 10001 steps, including 3 resets, run finished after 294 ms. (steps per millisecond=34 ) properties (out of 16) seen :9
// Phase 1: matrix 7651 rows 5466 cols
[2023-03-20 14:47:44] [INFO ] Invariants computation overflowed in 665 ms
[2023-03-20 14:47:44] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:47:47] [INFO ] [Real]Absence check using state equation in 2681 ms returned unsat
[2023-03-20 14:47:47] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:47:50] [INFO ] [Real]Absence check using state equation in 2560 ms returned unsat
[2023-03-20 14:47:50] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:47:52] [INFO ] [Real]Absence check using state equation in 1252 ms returned unsat
[2023-03-20 14:47:52] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:47:54] [INFO ] [Real]Absence check using state equation in 2203 ms returned unsat
[2023-03-20 14:47:55] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:47:57] [INFO ] [Real]Absence check using state equation in 1557 ms returned unsat
[2023-03-20 14:47:57] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:47:59] [INFO ] [Real]Absence check using state equation in 2188 ms returned unsat
[2023-03-20 14:48:00] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:03] [INFO ] [Real]Absence check using state equation in 3517 ms returned sat
[2023-03-20 14:48:03] [INFO ] Solution in real domain found non-integer solution.
[2023-03-20 14:48:04] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:08] [INFO ] [Nat]Absence check using state equation in 3830 ms returned sat
[2023-03-20 14:48:09] [INFO ] Computed and/alt/rep : 7650/7650/7650 causal constraints (skipped 0 transitions) in 386 ms.
[2023-03-20 14:48:09] [INFO ] Added : 0 causal constraints over 0 iterations in 390 ms. Result :unknown
[2023-03-20 14:48:09] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:10] [INFO ] [Real]Absence check using state equation in 1223 ms returned unsat
[2023-03-20 14:48:11] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:13] [INFO ] [Real]Absence check using state equation in 2635 ms returned unsat
[2023-03-20 14:48:14] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:17] [INFO ] [Real]Absence check using state equation in 2823 ms returned unsat
[2023-03-20 14:48:17] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:19] [INFO ] [Real]Absence check using state equation in 1494 ms returned unsat
[2023-03-20 14:48:19] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:21] [INFO ] [Real]Absence check using state equation in 1285 ms returned unsat
[2023-03-20 14:48:21] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:23] [INFO ] [Real]Absence check using state equation in 1627 ms returned unsat
[2023-03-20 14:48:23] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:24] [INFO ] [Real]Absence check using state equation in 1133 ms returned unsat
[2023-03-20 14:48:25] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:27] [INFO ] [Real]Absence check using state equation in 2097 ms returned unsat
[2023-03-20 14:48:27] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:31] [INFO ] [Real]Absence check using state equation in 3379 ms returned unsat
Current structural bounds on expressions (after SMT) : [1, 1, 1, 1, 1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1] Max seen :[1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1]
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
Support contains 1 out of 5466 places. Attempting structural reductions.
Starting structural reductions in SAFETY mode, iteration 0 : 5466/5466 places, 7651/7651 transitions.
Graph (complete) has 3279 edges and 5466 vertex of which 10 are kept as prefixes of interest. Removing 5456 places using SCC suffix rule.13 ms
Discarding 5456 places :
Also discarding 7626 output transitions
Drop transitions removed 7626 transitions
Drop transitions removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Drop transitions removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 21 rules applied. Total rules applied 22 place count 10 transition count 4
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 1 with 5 rules applied. Total rules applied 27 place count 5 transition count 4
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 1 Pre rules applied. Total rules applied 27 place count 5 transition count 3
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 2 with 2 rules applied. Total rules applied 29 place count 4 transition count 3
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 30 place count 3 transition count 2
Iterating global reduction 2 with 1 rules applied. Total rules applied 31 place count 3 transition count 2
Applied a total of 31 rules in 95 ms. Remains 3 /5466 variables (removed 5463) and now considering 2/7651 (removed 7649) transitions.
Finished structural reductions, in 1 iterations. Remains : 3/5466 places, 2/7651 transitions.
// Phase 1: matrix 2 rows 3 cols
[2023-03-20 14:48:31] [INFO ] Computed 1 place invariants in 0 ms
Incomplete random walk after 1000000 steps, including 333333 resets, run finished after 665 ms. (steps per millisecond=1503 ) properties (out of 1) seen :1
Incomplete Best-First random walk after 1000000 steps, including 333333 resets, run finished after 173 ms. (steps per millisecond=5780 ) properties (out of 1) seen :1
// Phase 1: matrix 2 rows 3 cols
[2023-03-20 14:48:32] [INFO ] Computed 1 place invariants in 0 ms
[2023-03-20 14:48:32] [INFO ] [Real]Absence check using 0 positive and 1 generalized place invariants in 0 ms returned sat
[2023-03-20 14:48:32] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2023-03-20 14:48:32] [INFO ] [Real]Absence check using state equation in 46 ms returned unsat
Current structural bounds on expressions (after SMT) : [1] Max seen :[1]
FORMULA ViralEpidemic-PT-S03D1C1A06-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL SAT_SMT RANDOM_WALK
All properties solved without resorting to model-checking.
Total runtime 56791 ms.

BK_STOP 1679323712540

--------------------
content from stderr:

+ export LANG=C
+ LANG=C
+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ UpperBounds = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution UpperBounds -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ export PYTHONPATH=/usr/lib/python3.9/site-packages/
+ PYTHONPATH=/usr/lib/python3.9/site-packages/
+ export LD_LIBRARY_PATH=/usr/local/lib:
+ LD_LIBRARY_PATH=/usr/local/lib:
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202205111006.jar
+ VERSION=202205111006
+ echo 'Running Version 202205111006'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data @none -pnfolder /home/mcc/execution -examination UpperBounds -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=@none -Xss128m -Xms40m -Xmx8192m

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="ViralEpidemic-PT-S03D1C1A06"
export BK_EXAMINATION="UpperBounds"
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 ViralEpidemic-PT-S03D1C1A06, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r511-tall-167912735700160"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ViralEpidemic-PT-S03D1C1A06.tgz
mv ViralEpidemic-PT-S03D1C1A06 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;