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.r550-tall-171734898500095.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 itstools
Input is CO4-PT-12, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r550-tall-171734898500095
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 640K
-rw-r--r-- 1 mcc users 8.2K Jun 2 17:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 94K Jun 2 17:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Jun 2 17:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 49K Jun 2 17:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K Jun 2 17:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K 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 17K Jun 2 17:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 2 16:33 NewModel
-rw-r--r-- 1 mcc users 12K Jun 2 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 126K Jun 2 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.1K Jun 2 17:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 61K 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 177K 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-12-ReachabilityFireability-2024-00
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-01
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-02
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-03
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-04
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-05
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-06
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-07
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-08
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-09
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-10
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-11
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-12
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-13
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-14
FORMULA_NAME CO4-PT-12-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1717352043127

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=CO4-PT-12
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-06-02 18:14:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2024-06-02 18:14:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-02 18:14:04] [INFO ] Load time of PNML (sax parser for PT used): 90 ms
[2024-06-02 18:14:04] [INFO ] Transformed 649 places.
[2024-06-02 18:14:04] [INFO ] Transformed 782 transitions.
[2024-06-02 18:14:04] [INFO ] Found NUPN structural information;
[2024-06-02 18:14:04] [INFO ] Parsed PT model containing 649 places and 782 transitions and 1960 arcs in 183 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 14 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 172 places in 11 ms
Reduce places removed 172 places and 219 transitions.
FORMULA CO4-PT-12-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-12-ReachabilityFireability-2024-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-12-ReachabilityFireability-2024-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-12-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA CO4-PT-12-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-02 18:14:05] [INFO ] Flatten gal took : 155 ms
RANDOM walk for 40000 steps (98 resets) in 1769 ms. (22 steps per ms) remains 9/11 properties
FORMULA CO4-PT-12-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA CO4-PT-12-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2024-06-02 18:14:05] [INFO ] Flatten gal took : 74 ms
[2024-06-02 18:14:05] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5601866653624242343.gal : 48 ms
BEST_FIRST walk for 40003 steps (307 resets) in 396 ms. (100 steps per ms) remains 9/9 properties
[2024-06-02 18:14:05] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality11525116692523027653.prop : 8 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5601866653624242343.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality11525116692523027653.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202405141337/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
BEST_FIRST walk for 40001 steps (160 resets) in 382 ms. (104 steps per ms) remains 8/9 properties
FORMULA CO4-PT-12-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Loading property file /tmp/ReachabilityCardinality11525116692523027653.prop.
BEST_FIRST walk for 40003 steps (176 resets) in 269 ms. (148 steps per ms) remains 8/8 properties
SDD proceeding with computation,9 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,9 properties remain. new max is 8
SDD size :5 after 7
SDD proceeding with computation,9 properties remain. new max is 16
SDD size :7 after 14
SDD proceeding with computation,9 properties remain. new max is 32
SDD size :14 after 29
SDD proceeding with computation,9 properties remain. new max is 64
SDD size :29 after 199
BEST_FIRST walk for 40002 steps (198 resets) in 302 ms. (132 steps per ms) remains 8/8 properties
SDD proceeding with computation,9 properties remain. new max is 128
SDD size :199 after 1843
SDD proceeding with computation,9 properties remain. new max is 256
SDD size :1843 after 1883
Reachability property CO4-PT-12-ReachabilityFireability-2024-09 is true.
FORMULA CO4-PT-12-ReachabilityFireability-2024-09 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Reachability property CO4-PT-12-ReachabilityFireability-2024-06 is true.
FORMULA CO4-PT-12-ReachabilityFireability-2024-06 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Invariant property CO4-PT-12-ReachabilityFireability-2024-05 does not hold.
FORMULA CO4-PT-12-ReachabilityFireability-2024-05 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,6 properties remain. new max is 256
SDD size :1883 after 1961
BEST_FIRST walk for 40002 steps (216 resets) in 134 ms. (296 steps per ms) remains 8/8 properties
SDD proceeding with computation,6 properties remain. new max is 512
SDD size :1961 after 1991
BEST_FIRST walk for 40001 steps (201 resets) in 182 ms. (218 steps per ms) remains 8/8 properties
Reachability property CO4-PT-12-ReachabilityFireability-2024-01 is true.
FORMULA CO4-PT-12-ReachabilityFireability-2024-01 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,5 properties remain. new max is 512
SDD size :1991 after 2356
SDD proceeding with computation,5 properties remain. new max is 1024
SDD size :2356 after 2942
BEST_FIRST walk for 40002 steps (253 resets) in 113 ms. (350 steps per ms) remains 8/8 properties
Invariant property CO4-PT-12-ReachabilityFireability-2024-14 does not hold.
FORMULA CO4-PT-12-ReachabilityFireability-2024-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,4 properties remain. new max is 1024
SDD size :2942 after 4987
BEST_FIRST walk for 40001 steps (146 resets) in 548 ms. (72 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40001 steps (204 resets) in 230 ms. (173 steps per ms) remains 8/8 properties
Reachability property CO4-PT-12-ReachabilityFireability-2024-03 is true.
SDD proceeding with computation,3 properties remain. new max is 1024
SDD size :4987 after 37275
// Phase 1: matrix 563 rows 477 cols
[2024-06-02 18:14:06] [INFO ] Computed 9 invariants in 32 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/42 variables, 42/42 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/42 variables, 0/42 constraints. Problems are: Problem set: 0 solved, 3 unsolved
Problem CO4-PT-12-ReachabilityFireability-2024-11 is UNSAT
FORMULA CO4-PT-12-ReachabilityFireability-2024-11 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 431/473 variables, 7/49 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/473 variables, 431/480 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/473 variables, 0/480 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 5 (OVERLAPS) 1/474 variables, 1/481 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/474 variables, 1/482 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/474 variables, 0/482 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 8 (OVERLAPS) 3/477 variables, 1/483 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/477 variables, 3/486 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/477 variables, 0/486 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 11 (OVERLAPS) 563/1040 variables, 477/963 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/1040 variables, 0/963 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 13 (OVERLAPS) 0/1040 variables, 0/963 constraints. Problems are: Problem set: 1 solved, 2 unsolved
No progress, stopping.
SDD proceeding with computation,3 properties remain. new max is 2048
SDD size :37275 after 167068
After SMT solving in domain Real declared 1040/1040 variables, and 963 constraints, problems are : Problem set: 1 solved, 2 unsolved in 553 ms.
Refiners :[Domain max(s): 477/477 constraints, Positive P Invariants (semi-flows): 8/8 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 477/477 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 2 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/11 variables, 11/11 constraints. Problems are: Problem set: 1 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/11 variables, 0/11 constraints. Problems are: Problem set: 1 solved, 2 unsolved
Problem CO4-PT-12-ReachabilityFireability-2024-04 is UNSAT
FORMULA CO4-PT-12-ReachabilityFireability-2024-04 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 442/453 variables, 4/15 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/453 variables, 442/457 constraints. Problems are: Problem set: 2 solved, 1 unsolved
[2024-06-02 18:14:06] [INFO ] Deduced a trap composed of 88 places in 88 ms of which 13 ms to minimize.
At refinement iteration 4 (INCLUDED_ONLY) 0/453 variables, 1/458 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/453 variables, 0/458 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 21/474 variables, 4/462 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/474 variables, 21/483 constraints. Problems are: Problem set: 2 solved, 1 unsolved
[2024-06-02 18:14:07] [INFO ] Deduced a trap composed of 67 places in 96 ms of which 2 ms to minimize.
At refinement iteration 8 (INCLUDED_ONLY) 0/474 variables, 1/484 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/474 variables, 0/484 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 3/477 variables, 1/485 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/477 variables, 3/488 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/477 variables, 0/488 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 563/1040 variables, 477/965 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 14 (INCLUDED_ONLY) 0/1040 variables, 1/966 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 15 (INCLUDED_ONLY) 0/1040 variables, 0/966 constraints. Problems are: Problem set: 2 solved, 1 unsolved
At refinement iteration 16 (OVERLAPS) 0/1040 variables, 0/966 constraints. Problems are: Problem set: 2 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 1040/1040 variables, and 966 constraints, problems are : Problem set: 2 solved, 1 unsolved in 641 ms.
Refiners :[Domain max(s): 477/477 constraints, Positive P Invariants (semi-flows): 8/8 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 477/477 constraints, PredecessorRefiner: 1/3 constraints, Known Traps: 2/2 constraints]
After SMT, in 1295ms problems are : Problem set: 2 solved, 1 unsolved
Finished Parikh walk after 2921 steps, including 122 resets, run visited all 1 properties in 9 ms. (steps per millisecond=324 )
FORMULA CO4-PT-12-ReachabilityFireability-2024-07 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 14 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 3165 ms.

BK_STOP 1717352047440

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

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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-12"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
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 itstools"
echo " Input is CO4-PT-12, 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 r550-tall-171734898500095"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/CO4-PT-12.tgz
mv CO4-PT-12 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 ;