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.r136-tall-171631132500351.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 itstools
Input is Diffusion2D-PT-D50N100, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r136-tall-171631132500351
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 7.8M
-rw-r--r-- 1 mcc users 11K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 107K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.8K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 42K 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 6.3K May 18 16:42 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.6K Apr 22 14:40 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Apr 22 14:40 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.7K May 19 07:16 LTLFireability.txt
-rw-r--r-- 1 mcc users 19K May 19 18:14 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Apr 11 14:18 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 105K Apr 11 14:18 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 11K Apr 11 14:17 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Apr 11 14:17 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.8K Apr 22 14:40 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K Apr 22 14:40 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:42 equiv_col
-rw-r--r-- 1 mcc users 8 May 18 16:42 instance
-rw-r--r-- 1 mcc users 6 May 18 16:42 iscolored
-rw-r--r-- 1 mcc users 7.3M 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 Diffusion2D-PT-D50N100-ReachabilityFireability-2024-00
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-01
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-02
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-03
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-04
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-05
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-06
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-07
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-08
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-09
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-10
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-11
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-12
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-13
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-14
FORMULA_NAME Diffusion2D-PT-D50N100-ReachabilityFireability-2024-15

=== Now, execution of the tool begins

BK_START 1716371003222

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Diffusion2D-PT-D50N100
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityFireability PT
Running Version 202405141337
[2024-05-22 09:43:24] [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]
[2024-05-22 09:43:24] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-22 09:43:24] [INFO ] Load time of PNML (sax parser for PT used): 399 ms
[2024-05-22 09:43:24] [INFO ] Transformed 2500 places.
[2024-05-22 09:43:24] [INFO ] Transformed 19404 transitions.
[2024-05-22 09:43:24] [INFO ] Parsed PT model containing 2500 places and 19404 transitions and 38808 arcs in 549 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 20 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40008 steps (8 resets) in 331 ms. (120 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 98 ms. (40 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 69 ms. (57 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 183 ms. (21 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 26 ms. (148 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 77 ms. (51 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 45 ms. (87 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 72 ms. (54 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 139 ms. (28 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4003 steps (8 resets) in 26 ms. (148 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 38 ms. (102 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 138 ms. (28 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 89 ms. (44 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 53 ms. (74 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 13 ms. (286 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 115 ms. (34 steps per ms) remains 16/16 properties
BEST_FIRST walk for 4004 steps (8 resets) in 39 ms. (100 steps per ms) remains 16/16 properties
[2024-05-22 09:43:26] [INFO ] Flatten gal took : 886 ms
[2024-05-22 09:43:27] [INFO ] Flatten gal took : 380 ms
[2024-05-22 09:43:27] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality2700070653052089981.gal : 175 ms
[2024-05-22 09:43:27] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality8608166482941306575.prop : 3 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/ReachabilityCardinality2700070653052089981.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality8608166482941306575.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 ...328
Loading property file /tmp/ReachabilityCardinality8608166482941306575.prop.
Interrupted probabilistic random walk after 90403 steps, run timeout after 3001 ms. (steps per millisecond=30 ) properties seen :3 out of 16
Probabilistic random walk after 90403 steps, saw 75257 distinct states, run finished after 3006 ms. (steps per millisecond=30 ) properties seen :3
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-14 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-12 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-10 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
// Phase 1: matrix 19404 rows 2500 cols
[2024-05-22 09:43:29] [INFO ] Computed 1 invariants in 272 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/151 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 1 (OVERLAPS) 2349/2500 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/2500 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 13 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Real declared 21904/21904 variables, and 2501 constraints, problems are : Problem set: 0 solved, 13 unsolved in 5057 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 2500/2500 constraints, PredecessorRefiner: 13/13 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 13 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/151 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 1 (OVERLAPS) 2349/2500 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 13 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/2500 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 13 unsolved
Solver is answering 'unknown', stopping.
After SMT solving in domain Int declared 21904/21904 variables, and 2501 constraints, problems are : Problem set: 0 solved, 13 unsolved in 5009 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 2500/2500 constraints, PredecessorRefiner: 0/13 constraints, Known Traps: 0/0 constraints]
After SMT, in 10856ms problems are : Problem set: 0 solved, 13 unsolved
Skipping Parikh replay, no witness traces provided.
Support contains 151 out of 2500 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 2500/2500 places, 19404/19404 transitions.
Graph (trivial) has 17066 edges and 2500 vertex of which 2349 / 2500 are part of one of the 1 SCC in 23 ms
Free SCC test removed 2348 places
Drop transitions (Empty/Sink Transition effects.) removed 17066 transitions
Ensure Unique test removed 1964 transitions
Reduce isomorphic transitions removed 19030 transitions.
Drop transitions (Redundant composition of simpler transitions.) removed 90 transitions
Redundant transition composition rules discarded 90 transitions
Iterating global reduction 0 with 90 rules applied. Total rules applied 91 place count 152 transition count 284
Applied a total of 91 rules in 132 ms. Remains 152 /2500 variables (removed 2348) and now considering 284/19404 (removed 19120) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 140 ms. Remains : 152/2500 places, 284/19404 transitions.
RANDOM walk for 40214 steps (8 resets) in 113 ms. (352 steps per ms) remains 6/13 properties
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-13 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-09 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-01 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 106 ms. (373 steps per ms) remains 4/6 properties
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-02 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-00 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 86 ms. (459 steps per ms) remains 2/4 properties
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-11 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-04 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 104 ms. (380 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40004 steps (8 resets) in 123 ms. (322 steps per ms) remains 1/2 properties
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-07 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
// Phase 1: matrix 284 rows 152 cols
[2024-05-22 09:43:39] [INFO ] Computed 1 invariants in 3 ms
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 137/152 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/152 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 284/436 variables, 152/153 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/436 variables, 0/153 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 0/436 variables, 0/153 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 436/436 variables, and 153 constraints, problems are : Problem set: 0 solved, 1 unsolved in 102 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 152/152 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) 0/15 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 137/152 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/152 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 284/436 variables, 152/153 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/436 variables, 1/154 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/436 variables, 0/154 constraints. Problems are: Problem set: 0 solved, 1 unsolved
At refinement iteration 6 (OVERLAPS) 0/436 variables, 0/154 constraints. Problems are: Problem set: 0 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 436/436 variables, and 154 constraints, problems are : Problem set: 0 solved, 1 unsolved in 113 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 152/152 constraints, PredecessorRefiner: 1/1 constraints, Known Traps: 0/0 constraints]
After SMT, in 225ms problems are : Problem set: 0 solved, 1 unsolved
Finished Parikh walk after 22 steps, including 0 resets, run visited all 1 properties in 1 ms. (steps per millisecond=22 )
FORMULA Diffusion2D-PT-D50N100-ReachabilityFireability-2024-05 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 5 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 15911 ms.

BK_STOP 1716371020279

--------------------
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:
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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="Diffusion2D-PT-D50N100"
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 Diffusion2D-PT-D50N100, 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 r136-tall-171631132500351"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Diffusion2D-PT-D50N100.tgz
mv Diffusion2D-PT-D50N100 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 ;