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.r553-tall-171734900700014.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)
.............
=====================================================================
Generated by BenchKit 2-5568
Executing tool ltsminxred
Input is CO4-PT-02, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r553-tall-171734900700014
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 548K
-rw-r--r-- 1 mcc users 6.7K Jun 2 17:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 76K Jun 2 17:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.3K Jun 2 17:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 63K Jun 2 17:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.3K Jun 2 17:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Jun 2 17:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Jun 2 17:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Jun 2 17:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 2 16:33 NewModel
-rw-r--r-- 1 mcc users 11K Jun 2 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 116K Jun 2 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Jun 2 17:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 102K Jun 2 17:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Jun 2 17:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.5K Jun 2 17:12 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 equiv_col
-rw-r--r-- 1 mcc users 3 Jun 2 16:33 instance
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 iscolored
-rw-r--r-- 1 mcc users 74K Jun 2 16:33 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 CO4-PT-02-ReachabilityCardinality-2024-00
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-01
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-02
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-03
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-04
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-05
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-06
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-07
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-08
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-09
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-10
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-11
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-12
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-13
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-14
FORMULA_NAME CO4-PT-02-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1717351296225

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-02
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-02 18:01:37] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2024-06-02 18:01:37] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-02 18:01:37] [INFO ] Load time of PNML (sax parser for PT used): 73 ms
[2024-06-02 18:01:37] [INFO ] Transformed 97 places.
[2024-06-02 18:01:37] [INFO ] Transformed 299 transitions.
[2024-06-02 18:01:37] [INFO ] Found NUPN structural information;
[2024-06-02 18:01:37] [INFO ] Parsed PT model containing 97 places and 299 transitions and 1113 arcs in 166 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 21 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 59 transitions
Reduce redundant transitions removed 59 transitions.
FORMULA CO4-PT-02-ReachabilityCardinality-2024-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-02-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-02-ReachabilityCardinality-2024-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-02-ReachabilityCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-02-ReachabilityCardinality-2024-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-02-ReachabilityCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-02-ReachabilityCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (21 resets) in 1234 ms. (32 steps per ms) remains 6/9 properties
FORMULA CO4-PT-02-ReachabilityCardinality-2024-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-02-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-02-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40003 steps (8 resets) in 319 ms. (125 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40002 steps (8 resets) in 140 ms. (283 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 202 ms. (197 steps per ms) remains 6/6 properties
BEST_FIRST walk for 40004 steps (8 resets) in 140 ms. (283 steps per ms) remains 5/6 properties
FORMULA CO4-PT-02-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40003 steps (8 resets) in 100 ms. (396 steps per ms) remains 4/5 properties
FORMULA CO4-PT-02-ReachabilityCardinality-2024-12 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40002 steps (13 resets) in 77 ms. (512 steps per ms) remains 4/4 properties
[2024-06-02 18:01:38] [INFO ] Flow matrix only has 164 transitions (discarded 76 similar events)
// Phase 1: matrix 164 rows 97 cols
[2024-06-02 18:01:38] [INFO ] Computed 12 invariants in 6 ms
[2024-06-02 18:01:38] [INFO ] State equation strengthened by 43 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/29 variables, 29/29 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/29 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 2 (OVERLAPS) 50/79 variables, 9/38 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/79 variables, 50/88 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 1/89 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/79 variables, 0/89 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 6 (OVERLAPS) 1/80 variables, 1/90 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/80 variables, 1/91 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/80 variables, 0/91 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 9 (OVERLAPS) 1/81 variables, 1/92 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/81 variables, 1/93 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/81 variables, 0/93 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 12 (OVERLAPS) 142/223 variables, 81/174 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/223 variables, 39/213 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/223 variables, 0/213 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 15 (OVERLAPS) 24/247 variables, 6/219 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/247 variables, 6/225 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/247 variables, 1/226 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/247 variables, 0/226 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 19 (OVERLAPS) 12/259 variables, 9/235 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/259 variables, 9/244 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/259 variables, 2/246 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/259 variables, 0/246 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 23 (OVERLAPS) 1/260 variables, 1/247 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/260 variables, 1/248 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/260 variables, 0/248 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 26 (OVERLAPS) 1/261 variables, 1/249 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/261 variables, 0/249 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 28 (OVERLAPS) 0/261 variables, 0/249 constraints. Problems are: Problem set: 0 solved, 4 unsolved
No progress, stopping.
After SMT solving in domain Real declared 261/261 variables, and 249 constraints, problems are : Problem set: 0 solved, 4 unsolved in 461 ms.
Refiners :[Domain max(s): 97/97 constraints, Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 97/97 constraints, ReadFeed: 43/43 constraints, PredecessorRefiner: 4/4 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 4 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/29 variables, 29/29 constraints. Problems are: Problem set: 0 solved, 4 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/29 variables, 0/29 constraints. Problems are: Problem set: 0 solved, 4 unsolved
Problem CO4-PT-02-ReachabilityCardinality-2024-04 is UNSAT
FORMULA CO4-PT-02-ReachabilityCardinality-2024-04 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 50/79 variables, 9/38 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/79 variables, 50/88 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/79 variables, 1/89 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/79 variables, 0/89 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 1/80 variables, 1/90 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/80 variables, 1/91 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/80 variables, 0/91 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 9 (OVERLAPS) 1/81 variables, 1/92 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/81 variables, 1/93 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/81 variables, 0/93 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 12 (OVERLAPS) 142/223 variables, 81/174 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/223 variables, 39/213 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/223 variables, 0/213 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 15 (OVERLAPS) 24/247 variables, 6/219 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/247 variables, 6/225 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/247 variables, 1/226 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 18 (INCLUDED_ONLY) 0/247 variables, 2/228 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/247 variables, 0/228 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 20 (OVERLAPS) 12/259 variables, 9/237 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/259 variables, 9/246 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/259 variables, 2/248 constraints. Problems are: Problem set: 1 solved, 3 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/259 variables, 0/248 constraints. Problems are: Problem set: 1 solved, 3 unsolved
Problem CO4-PT-02-ReachabilityCardinality-2024-09 is UNSAT
FORMULA CO4-PT-02-ReachabilityCardinality-2024-09 TRUE TECHNIQUES SMT_REFINEMENT
Problem CO4-PT-02-ReachabilityCardinality-2024-15 is UNSAT
FORMULA CO4-PT-02-ReachabilityCardinality-2024-15 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 24 (OVERLAPS) 1/260 variables, 1/249 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/260 variables, 1/250 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/260 variables, 1/251 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/260 variables, 0/251 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 28 (OVERLAPS) 1/261 variables, 1/252 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 29 (INCLUDED_ONLY) 0/261 variables, 0/252 constraints. Problems are: Problem set: 3 solved, 1 unsolved
At refinement iteration 30 (OVERLAPS) 0/261 variables, 0/252 constraints. Problems are: Problem set: 3 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 261/261 variables, and 252 constraints, problems are : Problem set: 3 solved, 1 unsolved in 280 ms.
Refiners :[Domain max(s): 97/97 constraints, Positive P Invariants (semi-flows): 10/10 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 97/97 constraints, ReadFeed: 43/43 constraints, PredecessorRefiner: 3/4 constraints, Known Traps: 0/0 constraints]
After SMT, in 831ms problems are : Problem set: 3 solved, 1 unsolved
Finished Parikh walk after 156 steps, including 3 resets, run visited all 1 properties in 2 ms. (steps per millisecond=78 )
FORMULA CO4-PT-02-ReachabilityCardinality-2024-00 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 12 ms.
All properties solved without resorting to model-checking.
Total runtime 1845 ms.
ITS solved all properties within timeout

BK_STOP 1717351299258

--------------------
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:
++ 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
++ sed s/.jar//
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -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="CO4-PT-02"
export BK_EXAMINATION="ReachabilityCardinality"
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 CO4-PT-02, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r553-tall-171734900700014"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-02.tgz
mv CO4-PT-02 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;