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.r631-smll-171774447000046.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 ResIsolation-PT-N09P1, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r631-smll-171774447000046
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 9.6M
-rw-r--r-- 1 mcc users 9.6K Jun 7 06:38 CTLCardinality.txt
-rw-r--r-- 1 mcc users 114K Jun 7 06:38 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.5K Jun 7 06:38 CTLFireability.txt
-rw-r--r-- 1 mcc users 51K Jun 7 06:38 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.3K Jun 7 06:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 22K Jun 7 06:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Jun 7 06:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Jun 7 06:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 7 06:26 NewModel
-rw-r--r-- 1 mcc users 9.1K Jun 7 06:39 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 93K Jun 7 06:39 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Jun 7 06:39 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 89K Jun 7 06:39 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Jun 7 06:43 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Jun 7 06:43 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 equiv_col
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 instance
-rw-r--r-- 1 mcc users 6 Jun 7 06:26 iscolored
-rw-r--r-- 1 mcc users 9.1M Jun 7 06:26 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 ResIsolation-PT-N09P1-ReachabilityCardinality-2024-00
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-01
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-02
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-03
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-04
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-05
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-06
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-07
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-08
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-09
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-10
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-11
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-12
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-13
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-14
FORMULA_NAME ResIsolation-PT-N09P1-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1717773696315

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=ResIsolation-PT-N09P1
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-07 15:21:38] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2024-06-07 15:21:38] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-07 15:21:40] [INFO ] Load time of PNML (sax parser for PT used): 1469 ms
[2024-06-07 15:21:40] [INFO ] Transformed 299 places.
[2024-06-07 15:21:40] [INFO ] Transformed 9484 transitions.
[2024-06-07 15:21:40] [INFO ] Found NUPN structural information;
[2024-06-07 15:21:40] [INFO ] Parsed PT model containing 299 places and 9484 transitions and 184865 arcs in 1795 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 39 ms.
Working with output stream class java.io.PrintStream
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-10 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (8 resets) in 5902 ms. (6 steps per ms) remains 10/12 properties
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-15 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 663 ms. (60 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (8 resets) in 876 ms. (45 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 653 ms. (61 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 739 ms. (54 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 634 ms. (62 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 451 ms. (88 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 907 ms. (44 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (8 resets) in 476 ms. (83 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 774 ms. (51 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 803 ms. (49 steps per ms) remains 10/10 properties
// Phase 1: matrix 9484 rows 299 cols
[2024-06-07 15:21:45] [INFO ] Computed 10 invariants in 281 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/96 variables, 96/96 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/96 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 2 (OVERLAPS) 203/299 variables, 10/106 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/299 variables, 203/309 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/299 variables, 0/309 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 9783/9783 variables, and 608 constraints, problems are : Problem set: 0 solved, 10 unsolved in 5063 ms.
Refiners :[Domain max(s): 299/299 constraints, Positive P Invariants (semi-flows): 10/10 constraints, State Equation: 299/299 constraints, PredecessorRefiner: 10/2 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 10 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/96 variables, 96/96 constraints. Problems are: Problem set: 0 solved, 10 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/96 variables, 0/96 constraints. Problems are: Problem set: 0 solved, 10 unsolved
Problem ResIsolation-PT-N09P1-ReachabilityCardinality-2024-09 is UNSAT
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-09 TRUE TECHNIQUES SMT_REFINEMENT
Problem ResIsolation-PT-N09P1-ReachabilityCardinality-2024-14 is UNSAT
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-14 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 203/299 variables, 10/106 constraints. Problems are: Problem set: 2 solved, 8 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/299 variables, 203/309 constraints. Problems are: Problem set: 2 solved, 8 unsolved
[2024-06-07 15:22:02] [INFO ] Deduced a trap composed of 43 places in 10989 ms of which 44 ms to minimize.
SMT process timed out in 17363ms, After SMT, problems are : Problem set: 2 solved, 8 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 40 out of 299 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 299/299 places, 9484/9484 transitions.
Graph (trivial) has 215 edges and 299 vertex of which 21 / 299 are part of one of the 7 SCC in 7 ms
Free SCC test removed 14 places
Drop transitions (Empty/Sink Transition effects.) removed 21 transitions
Reduce isomorphic transitions removed 21 transitions.
Graph (complete) has 3136 edges and 285 vertex of which 265 are kept as prefixes of interest. Removing 20 places using SCC suffix rule.140 ms
Discarding 20 places :
Also discarding 12 output transitions
Drop transitions (Output transitions of discarded places.) removed 12 transitions
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 26 transitions
Trivial Post-agglo rules discarded 26 transitions
Performed 26 trivial Post agglomeration. Transition count delta: 26
Iterating post reduction 0 with 30 rules applied. Total rules applied 32 place count 265 transition count 9421
Reduce places removed 26 places and 0 transitions.
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: 8
Iterating post reduction 1 with 34 rules applied. Total rules applied 66 place count 239 transition count 9413
Reduce places removed 8 places and 0 transitions.
Iterating post reduction 2 with 8 rules applied. Total rules applied 74 place count 231 transition count 9413
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 3 Pre rules applied. Total rules applied 74 place count 231 transition count 9410
Deduced a syphon composed of 3 places in 6 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 3 with 6 rules applied. Total rules applied 80 place count 228 transition count 9410
Discarding 119 places :
Symmetric choice reduction at 3 with 119 rule applications. Total rules 199 place count 109 transition count 9291
Iterating global reduction 3 with 119 rules applied. Total rules applied 318 place count 109 transition count 9291
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 1 Pre rules applied. Total rules applied 318 place count 109 transition count 9290
Deduced a syphon composed of 1 places in 8 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 3 with 2 rules applied. Total rules applied 320 place count 108 transition count 9290
Performed 16 Post agglomeration using F-continuation condition.Transition count delta: 16
Deduced a syphon composed of 16 places in 11 ms
Reduce places removed 16 places and 0 transitions.
Iterating global reduction 3 with 32 rules applied. Total rules applied 352 place count 92 transition count 9274
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 3 with 1 rules applied. Total rules applied 353 place count 92 transition count 9273
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 0
Deduced a syphon composed of 1 places in 4 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 4 with 2 rules applied. Total rules applied 355 place count 91 transition count 9273
Drop transitions (Redundant composition of simpler transitions.) removed 113 transitions
Redundant transition composition rules discarded 113 transitions
Iterating global reduction 4 with 113 rules applied. Total rules applied 468 place count 91 transition count 9160
Free-agglomeration rule applied 6 times.
Iterating global reduction 4 with 6 rules applied. Total rules applied 474 place count 91 transition count 9154
Reduce places removed 6 places and 0 transitions.
Ensure Unique test removed 128 transitions
Reduce isomorphic transitions removed 128 transitions.
Iterating post reduction 4 with 134 rules applied. Total rules applied 608 place count 85 transition count 9026
Drop transitions (Redundant composition of simpler transitions.) removed 368 transitions
Redundant transition composition rules discarded 368 transitions
Iterating global reduction 5 with 368 rules applied. Total rules applied 976 place count 85 transition count 8658
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 5 with 1 rules applied. Total rules applied 977 place count 84 transition count 8657
Applied a total of 977 rules in 94920 ms. Remains 84 /299 variables (removed 215) and now considering 8657/9484 (removed 827) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 94941 ms. Remains : 84/299 places, 8657/9484 transitions.
RANDOM walk for 40000 steps (8 resets) in 2447 ms. (16 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (8 resets) in 837 ms. (47 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 784 ms. (50 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40002 steps (8 resets) in 882 ms. (45 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 876 ms. (45 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 547 ms. (73 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 685 ms. (58 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40003 steps (8 resets) in 693 ms. (57 steps per ms) remains 8/8 properties
BEST_FIRST walk for 40004 steps (8 resets) in 695 ms. (57 steps per ms) remains 8/8 properties
Interrupted probabilistic random walk after 225125 steps, run timeout after 6001 ms. (steps per millisecond=37 ) properties seen :7 out of 8
Probabilistic random walk after 225125 steps, saw 43348 distinct states, run finished after 6007 ms. (steps per millisecond=37 ) properties seen :7
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-12 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-11 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-08 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-07 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-02 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
// Phase 1: matrix 8657 rows 84 cols
[2024-06-07 15:23:45] [INFO ] Computed 6 invariants in 55 ms
[2024-06-07 15:24:16] [INFO ] State equation strengthened by 8530 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/4 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 25/29 variables, 3/3 constraints. Problems are: Problem set: 0 solved, 1 unsolved
[2024-06-07 15:24:18] [INFO ] Deduced a trap composed of 11 places in 1473 ms of which 3 ms to minimize.
[2024-06-07 15:24:19] [INFO ] Deduced a trap composed of 9 places in 1431 ms of which 1 ms to minimize.
Problem ResIsolation-PT-N09P1-ReachabilityCardinality-2024-03 is UNSAT
FORMULA ResIsolation-PT-N09P1-ReachabilityCardinality-2024-03 FALSE TECHNIQUES SMT_REFINEMENT
After SMT solving in domain Real declared 29/8741 variables, and 5 constraints, problems are : Problem set: 1 solved, 0 unsolved in 3230 ms.
Refiners :[Positive P Invariants (semi-flows): 3/6 constraints, State Equation: 0/84 constraints, ReadFeed: 0/8530 constraints, PredecessorRefiner: 1/0 constraints, Known Traps: 2/2 constraints]
After SMT, in 34176ms problems are : Problem set: 1 solved, 0 unsolved
Skipping Parikh replay, no witness traces provided.
All properties solved without resorting to model-checking.
Total runtime 161192 ms.
ITS solved all properties within timeout

BK_STOP 1717773859849

--------------------
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="ResIsolation-PT-N09P1"
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 ResIsolation-PT-N09P1, 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 r631-smll-171774447000046"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/ResIsolation-PT-N09P1.tgz
mv ResIsolation-PT-N09P1 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 ;