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.r342-tall-171679092600004.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 greatspnxred
Input is Ring-PT-none, examination is Liveness
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r342-tall-171679092600004
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 496K
-rw-r--r-- 1 mcc users 6.6K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 69K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.9K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 46K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 18 16:43 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 3.4K Apr 23 07:48 LTLCardinality.txt
-rw-r--r-- 1 mcc users 24K Apr 23 07:48 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K Apr 23 07:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 15K Apr 23 07:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Apr 12 03:36 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 121K Apr 12 03:36 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.2K Apr 12 03:35 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 85K Apr 12 03:35 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.5K Apr 23 07:48 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Apr 23 07:48 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 5 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 47K May 18 16:43 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

FORMULA_NAME Liveness

=== Now, execution of the tool begins

BK_START 1716813840163

Invoking MCC driver with
BK_TOOL=greatspnxred
BK_EXAMINATION=Liveness
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=Ring-PT-none
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool greatspn
Invoking reducer
Running Version 202405141337
[2024-05-27 12:44:01] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, Liveness, -timeout, 180, -rebuildPNML]
[2024-05-27 12:44:01] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-05-27 12:44:01] [INFO ] Load time of PNML (sax parser for PT used): 67 ms
[2024-05-27 12:44:01] [INFO ] Transformed 139 places.
[2024-05-27 12:44:01] [INFO ] Transformed 87 transitions.
[2024-05-27 12:44:01] [INFO ] Found NUPN structural information;
[2024-05-27 12:44:01] [INFO ] Parsed PT model containing 139 places and 87 transitions and 410 arcs in 169 ms.
Reduce places removed 6 places and 0 transitions.
Built sparse matrix representations for Structural reductions in 5 ms.15680KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 133/133 places, 87/87 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 19 ms. Remains 133 /133 variables (removed 0) and now considering 87/87 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 1 iterations and 32 ms. Remains : 133/133 places, 87/87 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 133/133 places, 87/87 transitions.
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Computed a total of 0 stabilizing places and 0 stable transitions
Applied a total of 0 rules in 6 ms. Remains 133 /133 variables (removed 0) and now considering 87/87 (removed 0) transitions.
// Phase 1: matrix 87 rows 133 cols
[2024-05-27 12:44:01] [INFO ] Computed 58 invariants in 8 ms
[2024-05-27 12:44:01] [INFO ] Implicit Places using invariants in 207 ms returned []
[2024-05-27 12:44:01] [INFO ] Invariant cache hit.
[2024-05-27 12:44:02] [INFO ] Implicit Places using invariants and state equation in 147 ms returned []
Implicit Place search using SMT with State Equation took 386 ms to find 0 implicit places.
[2024-05-27 12:44:02] [INFO ] Redundant transitions in 1 ms returned []
Running 75 sub problems to find dead transitions.
[2024-05-27 12:44:02] [INFO ] Invariant cache hit.
At refinement iteration 0 (INCLUDED_ONLY) 0/115 variables, 115/115 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/115 variables, 38/153 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/115 variables, 2/155 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/115 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 4 (OVERLAPS) 16/131 variables, 16/171 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/131 variables, 16/187 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/131 variables, 0/187 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 7 (OVERLAPS) 2/133 variables, 2/189 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/133 variables, 2/191 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/133 variables, 0/191 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 10 (OVERLAPS) 87/220 variables, 133/324 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/220 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 12 (OVERLAPS) 0/220 variables, 0/324 constraints. Problems are: Problem set: 0 solved, 75 unsolved
No progress, stopping.
After SMT solving in domain Real declared 220/220 variables, and 324 constraints, problems are : Problem set: 0 solved, 75 unsolved in 2383 ms.
Refiners :[Domain max(s): 133/133 constraints, Positive P Invariants (semi-flows): 54/54 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 133/133 constraints, PredecessorRefiner: 75/75 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 75 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/115 variables, 115/115 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/115 variables, 38/153 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/115 variables, 2/155 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/115 variables, 0/155 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 4 (OVERLAPS) 16/131 variables, 16/171 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/131 variables, 16/187 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/131 variables, 0/187 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 7 (OVERLAPS) 2/133 variables, 2/189 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/133 variables, 2/191 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/133 variables, 0/191 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 10 (OVERLAPS) 87/220 variables, 133/324 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/220 variables, 75/399 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/220 variables, 0/399 constraints. Problems are: Problem set: 0 solved, 75 unsolved
At refinement iteration 13 (OVERLAPS) 0/220 variables, 0/399 constraints. Problems are: Problem set: 0 solved, 75 unsolved
No progress, stopping.
After SMT solving in domain Int declared 220/220 variables, and 399 constraints, problems are : Problem set: 0 solved, 75 unsolved in 2043 ms.
Refiners :[Domain max(s): 133/133 constraints, Positive P Invariants (semi-flows): 54/54 constraints, Generalized P Invariants (flows): 4/4 constraints, State Equation: 133/133 constraints, PredecessorRefiner: 75/75 constraints, Known Traps: 0/0 constraints]
After SMT, in 4473ms problems are : Problem set: 0 solved, 75 unsolved
Search for dead transitions found 0 dead transitions in 4483ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 4895 ms. Remains : 133/133 places, 87/87 transitions.
Random walk for 1250000 steps, including 0 resets, run took 2866 ms (no deadlock found). (steps per millisecond=436 )
Random directed walk for 1250001 steps, including 0 resets, run took 2305 ms (no deadlock found). (steps per millisecond=542 )
[2024-05-27 12:44:11] [INFO ] Invariant cache hit.
[2024-05-27 12:44:11] [INFO ] [Real]Absence check using 54 positive place invariants in 8 ms returned unsat
Starting structural reductions in LIVENESS mode, iteration 0 : 139/139 places, 87/87 transitions.
Reduce places removed 6 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 11 rules applied. Total rules applied 11 place count 133 transition count 82
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 1 with 5 rules applied. Total rules applied 16 place count 128 transition count 82
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 3 Pre rules applied. Total rules applied 16 place count 128 transition count 79
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 22 place count 125 transition count 79
Applied a total of 22 rules in 22 ms. Remains 125 /139 variables (removed 14) and now considering 79/87 (removed 8) transitions.
// Phase 1: matrix 79 rows 125 cols
[2024-05-27 12:44:11] [INFO ] Computed 58 invariants in 2 ms
[2024-05-27 12:44:11] [INFO ] Implicit Places using invariants in 129 ms returned [3, 19, 21, 22, 27, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 79, 82, 84]
Discarding 18 places :
Implicit Place search using SMT only with invariants took 135 ms to find 18 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 107/139 places, 79/87 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 107 transition count 78
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 106 transition count 78
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 1 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 14 place count 100 transition count 72
Applied a total of 14 rules in 4 ms. Remains 100 /107 variables (removed 7) and now considering 72/79 (removed 7) transitions.
// Phase 1: matrix 72 rows 100 cols
[2024-05-27 12:44:11] [INFO ] Computed 40 invariants in 0 ms
[2024-05-27 12:44:12] [INFO ] Implicit Places using invariants in 97 ms returned []
[2024-05-27 12:44:12] [INFO ] Invariant cache hit.
[2024-05-27 12:44:12] [INFO ] Implicit Places using invariants and state equation in 121 ms returned []
Implicit Place search using SMT with State Equation took 219 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 100/139 places, 72/87 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 380 ms. Remains : 100/139 places, 72/87 transitions.
Discarding 6 transitions out of 72. Remains 66
Initial state reduction rules removed 6 formulas.
RANDOM walk for 1202 steps (0 resets) in 190 ms. (6 steps per ms) remains 0/60 properties
Able to resolve query QuasiLiveness after proving 66 properties.
Starting structural reductions in LIVENESS mode, iteration 0 : 139/139 places, 87/87 transitions.
Reduce places removed 6 places and 0 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 5 transitions
Trivial Post-agglo rules discarded 5 transitions
Performed 5 trivial Post agglomeration. Transition count delta: 5
Iterating post reduction 0 with 11 rules applied. Total rules applied 11 place count 133 transition count 82
Reduce places removed 5 places and 0 transitions.
Iterating post reduction 1 with 5 rules applied. Total rules applied 16 place count 128 transition count 82
Performed 3 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 2 with 3 Pre rules applied. Total rules applied 16 place count 128 transition count 79
Deduced a syphon composed of 3 places in 1 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 2 with 6 rules applied. Total rules applied 22 place count 125 transition count 79
Applied a total of 22 rules in 3 ms. Remains 125 /139 variables (removed 14) and now considering 79/87 (removed 8) transitions.
// Phase 1: matrix 79 rows 125 cols
[2024-05-27 12:44:12] [INFO ] Computed 58 invariants in 1 ms
[2024-05-27 12:44:12] [INFO ] Implicit Places using invariants in 107 ms returned [3, 19, 21, 22, 27, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 79, 82, 84]
Discarding 18 places :
Implicit Place search using SMT only with invariants took 109 ms to find 18 implicit places.
Starting structural reductions in LIVENESS mode, iteration 1 : 107/139 places, 79/87 transitions.
Performed 1 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 0 with 1 Pre rules applied. Total rules applied 0 place count 107 transition count 78
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Iterating global reduction 0 with 2 rules applied. Total rules applied 2 place count 106 transition count 78
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 0 with 12 rules applied. Total rules applied 14 place count 100 transition count 72
Applied a total of 14 rules in 4 ms. Remains 100 /107 variables (removed 7) and now considering 72/79 (removed 7) transitions.
// Phase 1: matrix 72 rows 100 cols
[2024-05-27 12:44:12] [INFO ] Computed 40 invariants in 2 ms
[2024-05-27 12:44:12] [INFO ] Implicit Places using invariants in 82 ms returned []
[2024-05-27 12:44:12] [INFO ] Invariant cache hit.
[2024-05-27 12:44:12] [INFO ] Implicit Places using invariants and state equation in 100 ms returned []
Implicit Place search using SMT with State Equation took 183 ms to find 0 implicit places.
Starting structural reductions in LIVENESS mode, iteration 2 : 100/139 places, 72/87 transitions.
Finished structural reductions in LIVENESS mode , in 2 iterations and 299 ms. Remains : 100/139 places, 72/87 transitions.
Discarding 6 transitions out of 72. Remains 66
Net is quasi-live, checking if it is reversible to establish liveness.
Unable to solve all queries for examination Liveness. Remains :1 assertions to prove.
Unable to solve all queries for examination Liveness. Remains :66 assertions to prove.
No /home/mcc/execution/Liveness.xml examination file found. Proceeding without properties.
Parsed 66 properties from file /home/mcc/execution/Liveness.xml in 1 ms.
Working with output stream class java.io.PrintStream
Total runtime 11240 ms.
----------------------------------------------------------------------
GreatSPN-meddly tool, MCC 2023
----------------------------------------------------------------------

Running Ring-PT-none

IS_COLORED=
IS_NUPN=1

LOADING model.pnml ...
MODEL CLASS: P/T NET WITH NUPN EXTENSION
PLACES: 139
TRANSITIONS: 87
CONSTANTS: 0
TEMPLATE VARS: 0
ARCS: 410
NUPN UNITS: 62
LOADING TIME: 0.224

SAVING AS /home/mcc/execution/model.(net/def) ...
exportGspn useExt=true
SAVING TIME: 0.017
SAVING NAME MAP FILE /home/mcc/execution/model.id2name ...
SAVING NUPN UNITS AS FILE /home/mcc/execution/model.nu ...
TOTAL TIME: 0.515
OK.
----------------------------------------------------------------------
GreatSPN/Meddly.
Copyright (C) 1987-2022, University of Torino, Italy.
website: https://github.com/greatspn/SOURCES

Based on MEDDLY version 0.16.0
Copyright (C) 2009, Iowa State University Research Foundation, Inc.
website: http://meddly.sourceforge.net

Process ID: 566
MODEL NAME: /home/mcc/execution/model
139 places, 87 transitions.

Creating all event NSFs..
Creating all event NSFs..
Creating all event NSFs..
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Split: SplitSubtract
Start RS construction.
Creating all event NSFs..
Split: SplitSubtract
Start RS construction.
Building monolithic NSF...

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_1.0.0.202405141337.jar
+ VERSION=202405141337
+ echo 'Running Version 202405141337'
+ /home/mcc/BenchKit/bin//../reducer/bin//../../itstools//itstools/its-tools -pnfolder /home/mcc/execution -examination Liveness -timeout 180 -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="Ring-PT-none"
export BK_EXAMINATION="Liveness"
export BK_TOOL="greatspnxred"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="1800"
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 Ring-PT-none, examination is Liveness"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r342-tall-171679092600004"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Ring-PT-none.tgz
mv Ring-PT-none execution
cd execution
if [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "UpperBounds" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] || [ "Liveness" = "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 [ "Liveness" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "Liveness" != "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 "Liveness.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property Liveness.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "Liveness.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 '' Liveness.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "Liveness" = "ReachabilityDeadlock" ] || [ "Liveness" = "QuasiLiveness" ] || [ "Liveness" = "StableMarking" ] || [ "Liveness" = "Liveness" ] || [ "Liveness" = "OneSafe" ] ; then
echo "FORMULA_NAME Liveness"
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 ;