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.r157-smll-171636265000118.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 greatspnxred
Input is Echo-PT-d03r05, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r157-smll-171636265000118
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 5.7K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 55K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.6K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 39K 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 5.9K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.8K May 19 07:09 LTLCardinality.txt
-rw-r--r-- 1 mcc users 27K May 19 15:51 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 19 07:17 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 19 18:17 LTLFireability.xml
-rw-r--r-- 1 mcc users 15K Apr 12 04:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 160K Apr 12 04:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Apr 12 04:44 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Apr 12 04:44 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Apr 22 14:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 22 14:43 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 7 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 716K 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 Echo-PT-d03r05-ReachabilityCardinality-2024-00
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-01
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-02
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-03
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-04
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-05
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-06
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-07
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-08
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-09
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-10
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-11
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-12
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-13
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-14
FORMULA_NAME Echo-PT-d03r05-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1716455718719

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Echo-PT-d03r05
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-23 09:15:20] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2024-05-23 09:15:20] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-23 09:15:21] [INFO ] Load time of PNML (sax parser for PT used): 459 ms
[2024-05-23 09:15:21] [INFO ] Transformed 1445 places.
[2024-05-23 09:15:21] [INFO ] Transformed 1190 transitions.
[2024-05-23 09:15:21] [INFO ] Found NUPN structural information;
[2024-05-23 09:15:21] [INFO ] Parsed PT model containing 1445 places and 1190 transitions and 8260 arcs in 811 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 37 ms.
Working with output stream class java.io.PrintStream
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (156 resets) in 3649 ms. (10 steps per ms) remains 1/13 properties
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-12 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 869 ms. (45 steps per ms) remains 1/1 properties
// Phase 1: matrix 1190 rows 1445 cols
[2024-05-23 09:15:23] [INFO ] Computed 725 invariants in 175 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/38 variables, 38/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/38 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 103/141 variables, 22/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/141 variables, 103/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/141 variables, 0/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 48/189 variables, 15/178 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/189 variables, 48/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/189 variables, 0/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 34/223 variables, 8/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/223 variables, 34/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/223 variables, 2/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/223 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 821/1044 variables, 344/614 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1044 variables, 821/1435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1044 variables, 0/1435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 83/1127 variables, 58/1493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1127 variables, 83/1576 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1127 variables, 0/1576 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 311/1438 variables, 269/1845 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1438 variables, 311/2156 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 20 (INCLUDED_ONLY) 0/1438 variables, 0/2156 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (OVERLAPS) 5/1443 variables, 5/2161 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (INCLUDED_ONLY) 0/1443 variables, 5/2166 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1443 variables, 0/2166 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (OVERLAPS) 2/1445 variables, 2/2168 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (INCLUDED_ONLY) 0/1445 variables, 2/2170 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/1445 variables, 0/2170 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 2635/2635 variables, and 3615 constraints, problems are : Problem set: 0 solved, 1 unsolved in 5112 ms.
Refiners :[Domain max(s): 1445/1445 constraints, Positive P Invariants (semi-flows): 108/108 constraints, Generalized P Invariants (flows): 617/617 constraints, State Equation: 1445/1445 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/38 variables, 38/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/38 variables, 0/38 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (OVERLAPS) 103/141 variables, 22/60 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/141 variables, 103/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/141 variables, 0/163 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 48/189 variables, 15/178 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/189 variables, 48/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/189 variables, 0/226 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 34/223 variables, 8/234 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/223 variables, 34/268 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/223 variables, 2/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/223 variables, 0/270 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 12 (OVERLAPS) 821/1044 variables, 344/614 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 13 (INCLUDED_ONLY) 0/1044 variables, 821/1435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1044 variables, 0/1435 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 15 (OVERLAPS) 83/1127 variables, 58/1493 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 16 (INCLUDED_ONLY) 0/1127 variables, 83/1576 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 17 (INCLUDED_ONLY) 0/1127 variables, 0/1576 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 18 (OVERLAPS) 311/1438 variables, 269/1845 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 19 (INCLUDED_ONLY) 0/1438 variables, 311/2156 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2024-05-23 09:15:31] [INFO ] Deduced a trap composed of 12 places in 1111 ms of which 136 ms to minimize.
At refinement iteration 20 (INCLUDED_ONLY) 0/1438 variables, 1/2157 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 21 (INCLUDED_ONLY) 0/1438 variables, 0/2157 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 22 (OVERLAPS) 5/1443 variables, 5/2162 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 23 (INCLUDED_ONLY) 0/1443 variables, 5/2167 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 24 (INCLUDED_ONLY) 0/1443 variables, 0/2167 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 25 (OVERLAPS) 2/1445 variables, 2/2169 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 26 (INCLUDED_ONLY) 0/1445 variables, 2/2171 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 27 (INCLUDED_ONLY) 0/1445 variables, 0/2171 constraints. Problems are: Problem set: 0 solved, 1 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 2635/2635 variables, and 3616 constraints, problems are : Problem set: 0 solved, 1 unsolved in 5011 ms.
Refiners :[Domain max(s): 1445/1445 constraints, Positive P Invariants (semi-flows): 108/108 constraints, Generalized P Invariants (flows): 617/617 constraints, State Equation: 1445/1445 constraints, PredecessorRefiner: 0/1 constraints, Known Traps: 1/1 constraints]
After SMT, in 10593ms problems are : Problem set: 0 solved, 1 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 38 out of 1445 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 1445/1445 places, 1190/1190 transitions.
Graph (complete) has 5918 edges and 1445 vertex of which 1323 are kept as prefixes of interest. Removing 122 places using SCC suffix rule.11 ms
Discarding 122 places :
Also discarding 0 output transitions
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 0 with 2 rules applied. Total rules applied 3 place count 1323 transition count 1190
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 0 with 1 rules applied. Total rules applied 4 place count 1322 transition count 1189
Applied a total of 4 rules in 560 ms. Remains 1322 /1445 variables (removed 123) and now considering 1189/1190 (removed 1) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 581 ms. Remains : 1322/1445 places, 1189/1190 transitions.
RANDOM walk for 40000 steps (160 resets) in 2269 ms. (17 steps per ms) remains 1/1 properties
BEST_FIRST walk for 34107 steps (7 resets) in 505 ms. (67 steps per ms) remains 0/1 properties
FORMULA Echo-PT-d03r05-ReachabilityCardinality-2024-14 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
All properties solved without resorting to model-checking.
Total runtime 14437 ms.
ITS solved all properties within timeout

BK_STOP 1716455735348

--------------------
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 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="Echo-PT-d03r05"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="greatspnxred"
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 greatspnxred"
echo " Input is Echo-PT-d03r05, 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 r157-smll-171636265000118"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Echo-PT-d03r05.tgz
mv Echo-PT-d03r05 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 ;