fond
Model Checking Contest 2023
13th edition, Paris, France, April 26, 2023 (at TOOLympics II)
Execution of r298-tall-167873952100743
Last Updated
May 14, 2023

About the Execution of Marcie+red for PolyORBNT-PT-S05J60

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
6186.831 3600000.00 3644305.00 9659.70 FFFTFFFTTTFFFTTT normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2023-input.r298-tall-167873952100743.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2023-input.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 2-5348
Executing tool marciexred
Input is PolyORBNT-PT-S05J60, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r298-tall-167873952100743
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.4M
-rw-r--r-- 1 mcc users 39K Feb 25 23:30 CTLCardinality.txt
-rw-r--r-- 1 mcc users 208K Feb 25 23:30 CTLCardinality.xml
-rw-r--r-- 1 mcc users 67K Feb 25 23:27 CTLFireability.txt
-rw-r--r-- 1 mcc users 319K Feb 25 23:27 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 12K Feb 25 16:36 LTLCardinality.txt
-rw-r--r-- 1 mcc users 49K Feb 25 16:36 LTLCardinality.xml
-rw-r--r-- 1 mcc users 37K Feb 25 16:36 LTLFireability.txt
-rw-r--r-- 1 mcc users 123K Feb 25 16:36 LTLFireability.xml
-rw-r--r-- 1 mcc users 44K Feb 25 23:41 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 183K Feb 25 23:41 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 154K Feb 25 23:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 663K Feb 25 23:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 7.4K Feb 25 16:36 UpperBounds.txt
-rw-r--r-- 1 mcc users 16K Feb 25 16:36 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 7 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 1.5M Mar 5 18:23 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 PolyORBNT-PT-S05J60-ReachabilityFireability-00
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-01
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-02
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-03
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-04
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-05
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-06
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-07
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-08
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-09
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-10
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-11
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-12
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-13
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-14
FORMULA_NAME PolyORBNT-PT-S05J60-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1679656490042

bash -c /home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n "BK_STOP " ; date -u +%s%3N
Invoking MCC driver with
BK_TOOL=marciexred
BK_EXAMINATION=ReachabilityFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=PolyORBNT-PT-S05J60
Applying reductions before tool marcie
Invoking reducer
Running Version 202303021504
[2023-03-24 11:14:51] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -timeout, 360, -rebuildPNML]
[2023-03-24 11:14:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-24 11:14:51] [INFO ] Load time of PNML (sax parser for PT used): 133 ms
[2023-03-24 11:14:51] [INFO ] Transformed 909 places.
[2023-03-24 11:14:51] [INFO ] Transformed 1970 transitions.
[2023-03-24 11:14:51] [INFO ] Parsed PT model containing 909 places and 1970 transitions and 12584 arcs in 207 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 26 ms.
Working with output stream class java.io.PrintStream
[2023-03-24 11:14:51] [INFO ] Reduced 90 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 90 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 10 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 555 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 555 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 10 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 10 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 10 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 555 identical enabling conditions.
[2023-03-24 11:14:51] [INFO ] Reduced 555 identical enabling conditions.
Ensure Unique test removed 655 transitions
Reduce redundant transitions removed 655 transitions.
Incomplete random walk after 10000 steps, including 694 resets, run finished after 493 ms. (steps per millisecond=20 ) properties (out of 16) seen :4
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-04 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 262 resets, run finished after 429 ms. (steps per millisecond=23 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 228 resets, run finished after 1191 ms. (steps per millisecond=8 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 252 resets, run finished after 736 ms. (steps per millisecond=13 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 303 resets, run finished after 528 ms. (steps per millisecond=18 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 49 resets, run finished after 63 ms. (steps per millisecond=158 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 150 resets, run finished after 79 ms. (steps per millisecond=126 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 14 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 94 resets, run finished after 84 ms. (steps per millisecond=119 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 14 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 13 resets, run finished after 40 ms. (steps per millisecond=250 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 143 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 12) seen :1
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-14 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 14 resets, run finished after 64 ms. (steps per millisecond=156 ) properties (out of 11) seen :0
Running SMT prover for 11 properties.
[2023-03-24 11:14:55] [INFO ] Flow matrix only has 1311 transitions (discarded 4 similar events)
// Phase 1: matrix 1311 rows 909 cols
[2023-03-24 11:14:55] [INFO ] Computed 142 place invariants in 89 ms
[2023-03-24 11:15:00] [INFO ] [Real]Absence check using 111 positive place invariants in 35 ms returned sat
[2023-03-24 11:15:00] [INFO ] [Real]Absence check using 111 positive and 31 generalized place invariants in 50 ms returned sat
[2023-03-24 11:15:00] [INFO ] After 683ms SMT Verify possible using all constraints in real domain returned unsat :1 sat :0 real:10
[2023-03-24 11:15:01] [INFO ] [Nat]Absence check using 111 positive place invariants in 27 ms returned sat
[2023-03-24 11:15:01] [INFO ] [Nat]Absence check using 111 positive and 31 generalized place invariants in 56 ms returned sat
[2023-03-24 11:15:09] [INFO ] After 7977ms SMT Verify possible using state equation in natural domain returned unsat :9 sat :2
[2023-03-24 11:15:09] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-24 11:15:25] [INFO ] After 16402ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :9 sat :0
[2023-03-24 11:15:25] [INFO ] After 25028ms SMT Verify possible using all constraints in natural domain returned unsat :9 sat :0
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-15 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-13 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-12 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-11 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-10 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-06 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-03 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-01 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-00 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 11 Parikh solutions to 2 different solutions.
Parikh walk visited 0 properties in 10 ms.
Support contains 54 out of 909 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 909/909 places, 1315/1315 transitions.
Ensure Unique test removed 5 places
Drop transitions removed 60 transitions
Trivial Post-agglo rules discarded 60 transitions
Performed 60 trivial Post agglomeration. Transition count delta: 60
Iterating post reduction 0 with 65 rules applied. Total rules applied 65 place count 904 transition count 1255
Reduce places removed 60 places and 0 transitions.
Iterating post reduction 1 with 60 rules applied. Total rules applied 125 place count 844 transition count 1255
Performed 63 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 63 Pre rules applied. Total rules applied 125 place count 844 transition count 1192
Deduced a syphon composed of 63 places in 6 ms
Reduce places removed 63 places and 0 transitions.
Iterating global reduction 2 with 126 rules applied. Total rules applied 251 place count 781 transition count 1192
Discarding 1 places :
Symmetric choice reduction at 2 with 1 rule applications. Total rules 252 place count 780 transition count 1191
Iterating global reduction 2 with 1 rules applied. Total rules applied 253 place count 780 transition count 1191
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Deduced a syphon composed of 2 places in 0 ms
Reduce places removed 2 places and 0 transitions.
Iterating global reduction 2 with 4 rules applied. Total rules applied 257 place count 778 transition count 1189
Applied a total of 257 rules in 304 ms. Remains 778 /909 variables (removed 131) and now considering 1189/1315 (removed 126) transitions.
[2023-03-24 11:15:26] [INFO ] Flow matrix only has 1185 transitions (discarded 4 similar events)
// Phase 1: matrix 1185 rows 778 cols
[2023-03-24 11:15:26] [INFO ] Computed 137 place invariants in 46 ms
[2023-03-24 11:15:27] [INFO ] Dead Transitions using invariants and state equation in 1417 ms found 95 transitions.
Found 95 dead transitions using SMT.
Drop transitions removed 95 transitions
Dead transitions reduction (with SMT) triggered by suspicious arc values removed 95 transitions.
Starting structural reductions in REACHABILITY mode, iteration 1 : 778/909 places, 1094/1315 transitions.
Applied a total of 0 rules in 44 ms. Remains 778 /778 variables (removed 0) and now considering 1094/1094 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 1769 ms. Remains : 778/909 places, 1094/1315 transitions.
Incomplete random walk after 10000 steps, including 448 resets, run finished after 78 ms. (steps per millisecond=128 ) properties (out of 2) seen :1
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 26 resets, run finished after 50 ms. (steps per millisecond=200 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-24 11:15:27] [INFO ] Flow matrix only has 1090 transitions (discarded 4 similar events)
// Phase 1: matrix 1090 rows 778 cols
[2023-03-24 11:15:27] [INFO ] Computed 137 place invariants in 20 ms
[2023-03-24 11:15:28] [INFO ] [Real]Absence check using 112 positive place invariants in 54 ms returned sat
[2023-03-24 11:15:28] [INFO ] [Real]Absence check using 112 positive and 25 generalized place invariants in 31 ms returned sat
[2023-03-24 11:15:28] [INFO ] After 252ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-24 11:15:28] [INFO ] [Nat]Absence check using 112 positive place invariants in 19 ms returned sat
[2023-03-24 11:15:28] [INFO ] [Nat]Absence check using 112 positive and 25 generalized place invariants in 35 ms returned sat
[2023-03-24 11:15:29] [INFO ] After 1286ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-24 11:15:29] [INFO ] State equation strengthened by 1 read => feed constraints.
[2023-03-24 11:15:32] [INFO ] After 2446ms SMT Verify possible using 1 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-24 11:15:32] [INFO ] After 3261ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 880 ms.
[2023-03-24 11:15:33] [INFO ] After 5603ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Finished Parikh walk after 36 steps, including 3 resets, run visited all 1 properties in 3 ms. (steps per millisecond=12 )
FORMULA PolyORBNT-PT-S05J60-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Parikh walk visited 1 properties in 3 ms.
All properties solved without resorting to model-checking.
Total runtime 42295 ms.
timeout --kill-after=10s --signal=SIGINT 1m for testing only

Marcie built on Linux at 2019-11-18.
A model checker for Generalized Stochastic Petri nets

authors: Alex Tovchigrechko (IDD package and CTL model checking)

Martin Schwarick (Symbolic numerical analysis and CSL model checking)

Christian Rohr (Simulative and approximative numerical model checking)

marcie@informatik.tu-cottbus.de

called as: /home/mcc/BenchKit/bin//../reducer/bin//../../marcie/bin/marcie --net-file=model.pnml --mcc-file=ReachabilityFireability.xml --memory=6 --mcc-mode

parse successfull
net created successfully

Net: PolyORBNT_PT_S05J60
(NrP: 909 NrTr: 1970 NrArc: 12584)

parse formulas
formulas created successfully
place and transition orderings generation:0m 0.368sec

net check time: 0m 0.001sec

init dd package: 0m 2.660sec

TIME LIMIT: Killed by timeout after 3600 seconds
MemTotal: 16393232 kB
MemFree: 9960160 kB
After kill :
MemTotal: 16393232 kB
MemFree: 16097400 kB

BK_TIME_CONFINEMENT_REACHED

--------------------
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_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityFireability -timeout 360 -rebuildPNML
check for maximal unmarked siphon
ok
check for constant places
ok
check if there are places and transitions
ok
check if there are transitions without pre-places
ok
check if at least one transition is enabled in m0
ok
check if there are transitions that can never fire
ok


initing FirstDep: 0m 0.047sec

61377 236085 272007 331251 377357 407898 420896 444460 522783 885032 1292646 1602052

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="PolyORBNT-PT-S05J60"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="marciexred"
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 2-5348"
echo " Executing tool marciexred"
echo " Input is PolyORBNT-PT-S05J60, 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 r298-tall-167873952100743"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/PolyORBNT-PT-S05J60.tgz
mv PolyORBNT-PT-S05J60 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 ;