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.r025-smll-171620166200247.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 greatspnxred
Input is AutonomousCar-PT-02b, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r025-smll-171620166200247
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 448K
-rw-r--r-- 1 mcc users 5.6K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 59K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.2K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.5K Apr 22 14:28 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Apr 22 14:28 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Apr 22 14:28 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 22 14:28 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Apr 12 18:06 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 115K Apr 12 18:06 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.3K Apr 12 18:06 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Apr 12 18:06 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K 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 49K 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 AutonomousCar-PT-02b-ReachabilityFireability-2024-00
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-01
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-02
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-03
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-04
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-05
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-06
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-07
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-08
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-09
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-10
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-11
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-12
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-13
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-14
FORMULA_NAME AutonomousCar-PT-02b-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716343813136

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=AutonomousCar-PT-02b
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-22 02:10:14] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2024-05-22 02:10:14] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-22 02:10:15] [INFO ] Load time of PNML (sax parser for PT used): 108 ms
[2024-05-22 02:10:15] [INFO ] Transformed 155 places.
[2024-05-22 02:10:15] [INFO ] Transformed 194 transitions.
[2024-05-22 02:10:15] [INFO ] Found NUPN structural information;
[2024-05-22 02:10:15] [INFO ] Parsed PT model containing 155 places and 194 transitions and 620 arcs in 285 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 26 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40000 steps (11 resets) in 2053 ms. (19 steps per ms) remains 9/16 properties
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-05 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40001 steps (10 resets) in 377 ms. (105 steps per ms) remains 7/9 properties
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-00 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40000 steps (35 resets) in 189 ms. (210 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40000 steps (12 resets) in 149 ms. (266 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40000 steps (91 resets) in 285 ms. (139 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40002 steps (17 resets) in 369 ms. (108 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40000 steps (9 resets) in 214 ms. (186 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40001 steps (13 resets) in 274 ms. (145 steps per ms) remains 7/7 properties
BEST_FIRST walk for 40000 steps (50 resets) in 346 ms. (115 steps per ms) remains 7/7 properties
// Phase 1: matrix 194 rows 155 cols
[2024-05-22 02:10:16] [INFO ] Computed 7 invariants in 27 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/84 variables, 84/84 constraints. Problems are: Problem set: 0 solved, 7 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/84 variables, 0/84 constraints. Problems are: Problem set: 0 solved, 7 unsolved
Problem AutonomousCar-PT-02b-ReachabilityFireability-2024-14 is UNSAT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-14 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 71/155 variables, 7/91 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/155 variables, 71/162 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 0/162 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 5 (OVERLAPS) 194/349 variables, 155/317 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/349 variables, 0/317 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 7 (OVERLAPS) 0/349 variables, 0/317 constraints. Problems are: Problem set: 1 solved, 6 unsolved
No progress, stopping.
After SMT solving in domain Real declared 349/349 variables, and 317 constraints, problems are : Problem set: 1 solved, 6 unsolved in 887 ms.
Refiners :[Domain max(s): 155/155 constraints, Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 155/155 constraints, PredecessorRefiner: 7/7 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 1 solved, 6 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/73 variables, 73/73 constraints. Problems are: Problem set: 1 solved, 6 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/73 variables, 0/73 constraints. Problems are: Problem set: 1 solved, 6 unsolved
Problem AutonomousCar-PT-02b-ReachabilityFireability-2024-01 is UNSAT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
Problem AutonomousCar-PT-02b-ReachabilityFireability-2024-03 is UNSAT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-03 TRUE TECHNIQUES SMT_REFINEMENT
Problem AutonomousCar-PT-02b-ReachabilityFireability-2024-09 is UNSAT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-09 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 82/155 variables, 7/80 constraints. Problems are: Problem set: 4 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/155 variables, 82/162 constraints. Problems are: Problem set: 4 solved, 3 unsolved
[2024-05-22 02:10:18] [INFO ] Deduced a trap composed of 30 places in 144 ms of which 27 ms to minimize.
[2024-05-22 02:10:18] [INFO ] Deduced a trap composed of 22 places in 106 ms of which 2 ms to minimize.
Problem AutonomousCar-PT-02b-ReachabilityFireability-2024-12 is UNSAT
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-12 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 4 (INCLUDED_ONLY) 0/155 variables, 2/164 constraints. Problems are: Problem set: 5 solved, 2 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/155 variables, 0/164 constraints. Problems are: Problem set: 5 solved, 2 unsolved
At refinement iteration 6 (OVERLAPS) 194/349 variables, 155/319 constraints. Problems are: Problem set: 5 solved, 2 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/349 variables, 2/321 constraints. Problems are: Problem set: 5 solved, 2 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/349 variables, 0/321 constraints. Problems are: Problem set: 5 solved, 2 unsolved
At refinement iteration 9 (OVERLAPS) 0/349 variables, 0/321 constraints. Problems are: Problem set: 5 solved, 2 unsolved
No progress, stopping.
After SMT solving in domain Int declared 349/349 variables, and 321 constraints, problems are : Problem set: 5 solved, 2 unsolved in 850 ms.
Refiners :[Domain max(s): 155/155 constraints, Positive P Invariants (semi-flows): 7/7 constraints, State Equation: 155/155 constraints, PredecessorRefiner: 2/7 constraints, Known Traps: 2/2 constraints]
After SMT, in 1934ms problems are : Problem set: 5 solved, 2 unsolved
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-07 TRUE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 214 ms.
Support contains 8 out of 155 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 155/155 places, 194/194 transitions.
Graph (trivial) has 130 edges and 155 vertex of which 4 / 155 are part of one of the 2 SCC in 4 ms
Free SCC test removed 2 places
Drop transitions (Empty/Sink Transition effects.) removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Graph (complete) has 308 edges and 153 vertex of which 146 are kept as prefixes of interest. Removing 7 places using SCC suffix rule.2 ms
Discarding 7 places :
Also discarding 5 output transitions
Drop transitions (Output transitions of discarded places.) removed 5 transitions
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 62 transitions
Trivial Post-agglo rules discarded 62 transitions
Performed 62 trivial Post agglomeration. Transition count delta: 62
Iterating post reduction 0 with 63 rules applied. Total rules applied 65 place count 146 transition count 122
Reduce places removed 62 places and 0 transitions.
Ensure Unique test removed 7 transitions
Reduce isomorphic transitions removed 7 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 8 transitions
Trivial Post-agglo rules discarded 8 transitions
Performed 8 trivial Post agglomeration. Transition count delta: 8
Iterating post reduction 1 with 77 rules applied. Total rules applied 142 place count 84 transition count 107
Reduce places removed 8 places and 0 transitions.
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Iterating post reduction 2 with 11 rules applied. Total rules applied 153 place count 76 transition count 104
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 3 with 5 rules applied. Total rules applied 158 place count 73 transition count 102
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 4 with 1 rules applied. Total rules applied 159 place count 72 transition count 102
Performed 9 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 5 with 9 Pre rules applied. Total rules applied 159 place count 72 transition count 93
Deduced a syphon composed of 9 places in 1 ms
Reduce places removed 9 places and 0 transitions.
Iterating global reduction 5 with 18 rules applied. Total rules applied 177 place count 63 transition count 93
Discarding 12 places :
Symmetric choice reduction at 5 with 12 rule applications. Total rules 189 place count 51 transition count 81
Iterating global reduction 5 with 12 rules applied. Total rules applied 201 place count 51 transition count 81
Ensure Unique test removed 16 transitions
Reduce isomorphic transitions removed 16 transitions.
Iterating post reduction 5 with 16 rules applied. Total rules applied 217 place count 51 transition count 65
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 6 with 1 Pre rules applied. Total rules applied 217 place count 51 transition count 64
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 6 with 2 rules applied. Total rules applied 219 place count 50 transition count 64
Discarding 3 places :
Symmetric choice reduction at 6 with 3 rule applications. Total rules 222 place count 47 transition count 59
Iterating global reduction 6 with 3 rules applied. Total rules applied 225 place count 47 transition count 59
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 6 with 3 rules applied. Total rules applied 228 place count 47 transition count 56
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 7 with 1 rules applied. Total rules applied 229 place count 46 transition count 56
Performed 12 Post agglomeration using F-continuation condition.Transition count delta: 12
Deduced a syphon composed of 12 places in 0 ms
Reduce places removed 12 places and 0 transitions.
Iterating global reduction 8 with 24 rules applied. Total rules applied 253 place count 34 transition count 44
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: -1
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 8 with 2 rules applied. Total rules applied 255 place count 33 transition count 45
Drop transitions (Redundant composition of simpler transitions.) removed 1 transitions
Redundant transition composition rules discarded 1 transitions
Iterating global reduction 8 with 1 rules applied. Total rules applied 256 place count 33 transition count 44
Free-agglomeration rule applied 1 times.
Iterating global reduction 8 with 1 rules applied. Total rules applied 257 place count 33 transition count 43
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 8 with 1 rules applied. Total rules applied 258 place count 32 transition count 43
Partial Free-agglomeration rule applied 2 times.
Drop transitions (Partial Free agglomeration) removed 2 transitions
Iterating global reduction 9 with 2 rules applied. Total rules applied 260 place count 32 transition count 43
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 9 with 1 rules applied. Total rules applied 261 place count 31 transition count 42
Applied a total of 261 rules in 110 ms. Remains 31 /155 variables (removed 124) and now considering 42/194 (removed 152) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 127 ms. Remains : 31/155 places, 42/194 transitions.
RANDOM walk for 13127 steps (822 resets) in 98 ms. (132 steps per ms) remains 0/1 properties
FORMULA AutonomousCar-PT-02b-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
All properties solved without resorting to model-checking.
Total runtime 4390 ms.
ITS solved all properties within timeout

BK_STOP 1716343819355

--------------------
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="AutonomousCar-PT-02b"
export BK_EXAMINATION="ReachabilityFireability"
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 AutonomousCar-PT-02b, 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 r025-smll-171620166200247"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutonomousCar-PT-02b.tgz
mv AutonomousCar-PT-02b 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 ;