fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r468-smll-171620167200183
Last Updated
July 7, 2024

About the Execution of LTSMin+red for AutoFlight-PT-24b

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
441.855 15424.00 33872.00 142.20 TFFTTFFFTTTTFFFT normal

Execution Chart

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

Trace from the execution

Formatting '/data/fkordon/mcc2024-input.r468-smll-171620167200183.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2024-input.qcow2 backing_fmt=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 2-5568
Executing tool ltsminxred
Input is AutoFlight-PT-24b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r468-smll-171620167200183
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.1M
-rw-r--r-- 1 mcc users 7.7K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 86K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.7K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:42 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.5K May 19 07:06 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K May 19 15:27 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K May 19 07:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 19 17:51 LTLFireability.xml
-rw-r--r-- 1 mcc users 13K Apr 12 22:15 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 136K Apr 12 22:15 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 13K Apr 12 22:14 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 120K Apr 12 22:14 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 22 14:28 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Apr 22 14:28 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 4 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 538K May 18 16:42 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 AutoFlight-PT-24b-ReachabilityFireability-2024-00
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-01
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-02
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-03
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-04
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-05
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-06
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-07
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-08
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-09
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-10
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-11
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-12
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-13
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-14
FORMULA_NAME AutoFlight-PT-24b-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717197711363

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutoFlight-PT-24b
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-05-31 23:21:53] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2024-05-31 23:21:53] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-31 23:21:53] [INFO ] Load time of PNML (sax parser for PT used): 369 ms
[2024-05-31 23:21:53] [INFO ] Transformed 2230 places.
[2024-05-31 23:21:53] [INFO ] Transformed 2228 transitions.
[2024-05-31 23:21:53] [INFO ] Found NUPN structural information;
[2024-05-31 23:21:53] [INFO ] Parsed PT model containing 2230 places and 2228 transitions and 5186 arcs in 607 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 32 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (36 resets) in 2714 ms. (14 steps per ms) remains 5/16 properties
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 188 ms. (211 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 542 ms. (73 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40003 steps (8 resets) in 227 ms. (175 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 631 ms. (63 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 444 ms. (89 steps per ms) remains 5/5 properties
// Phase 1: matrix 2228 rows 2230 cols
[2024-05-31 23:21:55] [INFO ] Computed 148 invariants in 81 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/125 variables, 125/125 constraints. Problems are: Problem set: 0 solved, 5 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/125 variables, 0/125 constraints. Problems are: Problem set: 0 solved, 5 unsolved
Problem AutoFlight-PT-24b-ReachabilityFireability-2024-14 is UNSAT
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-14 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 1915/2040 variables, 136/261 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/2040 variables, 1915/2176 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/2040 variables, 0/2176 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 5 (OVERLAPS) 74/2114 variables, 11/2187 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/2114 variables, 74/2261 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/2114 variables, 0/2261 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 8 (OVERLAPS) 116/2230 variables, 1/2262 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/2230 variables, 116/2378 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/2230 variables, 0/2378 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 11 (OVERLAPS) 2228/4458 variables, 2230/4608 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/4458 variables, 0/4608 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 13 (OVERLAPS) 0/4458 variables, 0/4608 constraints. Problems are: Problem set: 1 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 4458/4458 variables, and 4608 constraints, problems are : Problem set: 1 solved, 4 unsolved in 4478 ms.
Refiners :[Domain max(s): 2230/2230 constraints, Positive P Invariants (semi-flows): 147/147 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 2230/2230 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/88 variables, 88/88 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/88 variables, 0/88 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 2 (OVERLAPS) 1866/1954 variables, 125/213 constraints. Problems are: Problem set: 1 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/1954 variables, 1866/2079 constraints. Problems are: Problem set: 1 solved, 4 unsolved
[2024-05-31 23:22:01] [INFO ] Deduced a trap composed of 46 places in 709 ms of which 96 ms to minimize.
[2024-05-31 23:22:02] [INFO ] Deduced a trap composed of 62 places in 634 ms of which 12 ms to minimize.
[2024-05-31 23:22:03] [INFO ] Deduced a trap composed of 51 places in 480 ms of which 8 ms to minimize.
[2024-05-31 23:22:03] [INFO ] Deduced a trap composed of 42 places in 431 ms of which 7 ms to minimize.
[2024-05-31 23:22:03] [INFO ] Deduced a trap composed of 31 places in 386 ms of which 6 ms to minimize.
[2024-05-31 23:22:04] [INFO ] Deduced a trap composed of 81 places in 388 ms of which 7 ms to minimize.
[2024-05-31 23:22:04] [INFO ] Deduced a trap composed of 44 places in 408 ms of which 7 ms to minimize.
[2024-05-31 23:22:05] [INFO ] Deduced a trap composed of 72 places in 384 ms of which 7 ms to minimize.
SMT process timed out in 9749ms, After SMT, problems are : Problem set: 1 solved, 4 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 88 out of 2230 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2230/2230 places, 2228/2228 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 797 transitions
Trivial Post-agglo rules discarded 797 transitions
Performed 797 trivial Post agglomeration. Transition count delta: 797
Iterating post reduction 0 with 797 rules applied. Total rules applied 797 place count 2230 transition count 1431
Reduce places removed 797 places and 0 transitions.
Ensure Unique test removed 96 transitions
Reduce isomorphic transitions removed 96 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 37 transitions
Trivial Post-agglo rules discarded 37 transitions
Performed 37 trivial Post agglomeration. Transition count delta: 37
Iterating post reduction 1 with 930 rules applied. Total rules applied 1727 place count 1433 transition count 1298
Reduce places removed 37 places and 0 transitions.
Performed 34 Post agglomeration using F-continuation condition.Transition count delta: 34
Iterating post reduction 2 with 71 rules applied. Total rules applied 1798 place count 1396 transition count 1264
Reduce places removed 34 places and 0 transitions.
Ensure Unique test removed 11 transitions
Reduce isomorphic transitions removed 11 transitions.
Iterating post reduction 3 with 45 rules applied. Total rules applied 1843 place count 1362 transition count 1253
Performed 272 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 4 with 272 Pre rules applied. Total rules applied 1843 place count 1362 transition count 981
Deduced a syphon composed of 272 places in 9 ms
Reduce places removed 272 places and 0 transitions.
Iterating global reduction 4 with 544 rules applied. Total rules applied 2387 place count 1090 transition count 981
Discarding 199 places :
Symmetric choice reduction at 4 with 199 rule applications. Total rules 2586 place count 891 transition count 782
Iterating global reduction 4 with 199 rules applied. Total rules applied 2785 place count 891 transition count 782
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 1 transitions
Trivial Post-agglo rules discarded 1 transitions
Performed 1 trivial Post agglomeration. Transition count delta: 1
Iterating post reduction 4 with 3 rules applied. Total rules applied 2788 place count 891 transition count 779
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 5 with 1 rules applied. Total rules applied 2789 place count 890 transition count 779
Performed 62 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 62 Pre rules applied. Total rules applied 2789 place count 890 transition count 717
Deduced a syphon composed of 62 places in 7 ms
Reduce places removed 62 places and 0 transitions.
Iterating global reduction 6 with 124 rules applied. Total rules applied 2913 place count 828 transition count 717
Performed 178 Post agglomeration using F-continuation condition.Transition count delta: 178
Deduced a syphon composed of 178 places in 1 ms
Reduce places removed 178 places and 0 transitions.
Iterating global reduction 6 with 356 rules applied. Total rules applied 3269 place count 650 transition count 539
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 6 with 6 rules applied. Total rules applied 3275 place count 647 transition count 539
Drop transitions (Redundant composition of simpler transitions.) removed 6 transitions
Redundant transition composition rules discarded 6 transitions
Iterating global reduction 6 with 6 rules applied. Total rules applied 3281 place count 647 transition count 533
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 2 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 6 with 4 rules applied. Total rules applied 3285 place count 645 transition count 531
Free-agglomeration rule applied 81 times.
Iterating global reduction 6 with 81 rules applied. Total rules applied 3366 place count 645 transition count 450
Reduce places removed 81 places and 0 transitions.
Iterating post reduction 6 with 81 rules applied. Total rules applied 3447 place count 564 transition count 450
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 7 with 1 rules applied. Total rules applied 3448 place count 563 transition count 449
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 7 with 8 rules applied. Total rules applied 3456 place count 555 transition count 449
Performed 7 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 8 with 7 Pre rules applied. Total rules applied 3456 place count 555 transition count 442
Deduced a syphon composed of 7 places in 1 ms
Reduce places removed 7 places and 0 transitions.
Iterating global reduction 8 with 14 rules applied. Total rules applied 3470 place count 548 transition count 442
Applied a total of 3470 rules in 955 ms. Remains 548 /2230 variables (removed 1682) and now considering 442/2228 (removed 1786) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 976 ms. Remains : 548/2230 places, 442/2228 transitions.
RANDOM walk for 40000 steps (340 resets) in 1247 ms. (32 steps per ms) remains 1/4 properties
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 16328 steps (3 resets) in 116 ms. (139 steps per ms) remains 0/1 properties
FORMULA AutoFlight-PT-24b-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
All properties solved without resorting to model-checking.
Total runtime 13593 ms.
ITS solved all properties within timeout

BK_STOP 1717197726787

--------------------
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_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML

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="AutoFlight-PT-24b"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="ltsminxred"
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 2-5568"
echo " Executing tool ltsminxred"
echo " Input is AutoFlight-PT-24b, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r468-smll-171620167200183"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-24b.tgz
mv AutoFlight-PT-24b execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "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 [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "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 "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.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 '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
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 ;