About the Execution of LTSMin+red for RingSingleMessageInMbox-PT-d0m010
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
246.688 | 5146.00 | 13056.00 | 35.40 | TTFFFTFTF?F?TTFF | normal |
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.r524-tall-171679079400017.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 ltsminxred
Input is RingSingleMessageInMbox-PT-d0m010, examination is CTLCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r524-tall-171679079400017
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 504K
-rw-r--r-- 1 mcc users 7.0K May 14 13:22 CTLCardinality.txt
-rw-r--r-- 1 mcc users 74K May 14 13:22 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K May 14 13:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 44K May 14 13:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K Apr 23 07:48 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Apr 23 07:48 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.4K Apr 23 07:48 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Apr 23 07:48 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Apr 12 23:59 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 114K Apr 12 23:59 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.7K Apr 12 23:59 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 86K Apr 12 23:59 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K Apr 23 07:48 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K 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 7 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 64K 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
here is the order used to build the result vector(from text file)
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-00
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-01
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-02
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-03
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-04
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-05
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-06
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-07
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-08
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-09
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-10
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-11
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-12
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-13
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-14
FORMULA_NAME RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-15
=== Now, execution of the tool begins
BK_START 1717217962200
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=CTLCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=RingSingleMessageInMbox-PT-d0m010
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 04:59:23] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLCardinality, -timeout, 360, -rebuildPNML]
[2024-06-01 04:59:23] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 04:59:23] [INFO ] Load time of PNML (sax parser for PT used): 60 ms
[2024-06-01 04:59:23] [INFO ] Transformed 385 places.
[2024-06-01 04:59:23] [INFO ] Transformed 59 transitions.
[2024-06-01 04:59:23] [INFO ] Parsed PT model containing 385 places and 59 transitions and 236 arcs in 151 ms.
Parsed 16 properties from file /home/mcc/execution/CTLCardinality.xml in 14 ms.
Deduced a syphon composed of 329 places in 0 ms
Reduce places removed 329 places and 0 transitions.
Initial state reduction rules removed 2 formulas.
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-07 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-08 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-10 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 4 out of 56 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 56/56 places, 59/59 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 54 transition count 59
Discarding 6 places :
Symmetric choice reduction at 1 with 6 rule applications. Total rules 8 place count 48 transition count 51
Iterating global reduction 1 with 6 rules applied. Total rules applied 14 place count 48 transition count 51
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 15 place count 47 transition count 50
Iterating global reduction 1 with 1 rules applied. Total rules applied 16 place count 47 transition count 50
Applied a total of 16 rules in 20 ms. Remains 47 /56 variables (removed 9) and now considering 50/59 (removed 9) transitions.
// Phase 1: matrix 50 rows 47 cols
[2024-06-01 04:59:23] [INFO ] Computed 3 invariants in 7 ms
[2024-06-01 04:59:23] [INFO ] Implicit Places using invariants in 199 ms returned []
[2024-06-01 04:59:23] [INFO ] Invariant cache hit.
[2024-06-01 04:59:23] [INFO ] State equation strengthened by 21 read => feed constraints.
[2024-06-01 04:59:23] [INFO ] Implicit Places using invariants and state equation in 95 ms returned []
Implicit Place search using SMT with State Equation took 324 ms to find 0 implicit places.
Running 49 sub problems to find dead transitions.
[2024-06-01 04:59:23] [INFO ] Invariant cache hit.
[2024-06-01 04:59:23] [INFO ] State equation strengthened by 21 read => feed constraints.
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/46 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 49 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/46 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 49 unsolved
At refinement iteration 2 (OVERLAPS) 1/47 variables, 2/3 constraints. Problems are: Problem set: 0 solved, 49 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/47 variables, 0/3 constraints. Problems are: Problem set: 0 solved, 49 unsolved
Problem TDEAD14 is UNSAT
Problem TDEAD15 is UNSAT
Problem TDEAD21 is UNSAT
Problem TDEAD22 is UNSAT
Problem TDEAD47 is UNSAT
At refinement iteration 4 (OVERLAPS) 50/97 variables, 47/50 constraints. Problems are: Problem set: 5 solved, 44 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/97 variables, 21/71 constraints. Problems are: Problem set: 5 solved, 44 unsolved
[2024-06-01 04:59:24] [INFO ] Deduced a trap composed of 15 places in 72 ms of which 17 ms to minimize.
Problem TDEAD43 is UNSAT
At refinement iteration 6 (INCLUDED_ONLY) 0/97 variables, 1/72 constraints. Problems are: Problem set: 6 solved, 43 unsolved
[2024-06-01 04:59:24] [INFO ] Deduced a trap composed of 27 places in 28 ms of which 1 ms to minimize.
At refinement iteration 7 (INCLUDED_ONLY) 0/97 variables, 1/73 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/97 variables, 0/73 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 9 (OVERLAPS) 0/97 variables, 0/73 constraints. Problems are: Problem set: 6 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Real declared 97/97 variables, and 73 constraints, problems are : Problem set: 6 solved, 43 unsolved in 920 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 47/47 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 49/49 constraints, Known Traps: 2/2 constraints]
Escalating to Integer solving :Problem set: 6 solved, 43 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/41 variables, 0/0 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 1 (OVERLAPS) 3/44 variables, 2/2 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/44 variables, 1/3 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/44 variables, 0/3 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 4 (OVERLAPS) 3/47 variables, 1/4 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/47 variables, 1/5 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/47 variables, 0/5 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 7 (OVERLAPS) 50/97 variables, 47/52 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/97 variables, 21/73 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/97 variables, 43/116 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/97 variables, 0/116 constraints. Problems are: Problem set: 6 solved, 43 unsolved
At refinement iteration 11 (OVERLAPS) 0/97 variables, 0/116 constraints. Problems are: Problem set: 6 solved, 43 unsolved
No progress, stopping.
After SMT solving in domain Int declared 97/97 variables, and 116 constraints, problems are : Problem set: 6 solved, 43 unsolved in 849 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 1/1 constraints, State Equation: 47/47 constraints, ReadFeed: 21/21 constraints, PredecessorRefiner: 43/49 constraints, Known Traps: 2/2 constraints]
After SMT, in 1880ms problems are : Problem set: 6 solved, 43 unsolved
Search for dead transitions found 6 dead transitions in 1894ms
Found 6 dead transitions using SMT.
Drop transitions (Dead Transitions using SMT only with invariants) removed 6 transitions
Dead transitions reduction (with SMT) removed 6 transitions
Starting structural reductions in LTL mode, iteration 1 : 47/56 places, 44/59 transitions.
Reduce places removed 4 places and 0 transitions.
Iterating post reduction 0 with 4 rules applied. Total rules applied 4 place count 43 transition count 44
Deduced a syphon composed of 1 places in 0 ms
Applied a total of 4 rules in 4 ms. Remains 43 /47 variables (removed 4) and now considering 44/44 (removed 0) transitions.
// Phase 1: matrix 44 rows 43 cols
[2024-06-01 04:59:25] [INFO ] Computed 3 invariants in 1 ms
[2024-06-01 04:59:25] [INFO ] Implicit Places using invariants in 37 ms returned []
[2024-06-01 04:59:25] [INFO ] Invariant cache hit.
[2024-06-01 04:59:25] [INFO ] State equation strengthened by 19 read => feed constraints.
[2024-06-01 04:59:25] [INFO ] Implicit Places using invariants and state equation in 57 ms returned []
Implicit Place search using SMT with State Equation took 95 ms to find 0 implicit places.
Starting structural reductions in LTL mode, iteration 2 : 43/56 places, 44/59 transitions.
Finished structural reductions in LTL mode , in 2 iterations and 2370 ms. Remains : 43/56 places, 44/59 transitions.
Deduced a syphon composed of 1 places in 0 ms
Reduce places removed 1 places and 0 transitions.
Support contains 3 out of 42 places after structural reductions.
[2024-06-01 04:59:26] [INFO ] Initial state reduction rules for CTL removed 4 formulas.
[2024-06-01 04:59:26] [INFO ] Flatten gal took : 30 ms
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-01 04:59:26] [INFO ] Flatten gal took : 8 ms
[2024-06-01 04:59:26] [INFO ] Input system was already deterministic with 44 transitions.
Support contains 2 out of 42 places (down from 3) after GAL structural reductions.
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-05 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2023-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 40000 steps (8641 resets) in 1396 ms. (28 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (3763 resets) in 201 ms. (198 steps per ms) remains 2/2 properties
BEST_FIRST walk for 40002 steps (3716 resets) in 136 ms. (291 steps per ms) remains 2/2 properties
Probably explored full state space saw : 27639 states, properties seen :1
Probabilistic random walk after 71445 steps, saw 27639 distinct states, run finished after 240 ms. (steps per millisecond=297 ) properties seen :1
Explored full state space saw : 27639 states, properties seen :0
Exhaustive walk after 71445 steps, saw 27639 distinct states, run finished after 52 ms. (steps per millisecond=1373 ) properties seen :0
Successfully simplified 1 atomic propositions for a total of 2 simplifications.
FORMULA RingSingleMessageInMbox-PT-d0m010-CTLCardinality-2024-00 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 4 ms
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 4 ms
[2024-06-01 04:59:27] [INFO ] Input system was already deterministic with 44 transitions.
Computed a total of 4 stabilizing places and 9 stable transitions
Graph (complete) has 128 edges and 42 vertex of which 41 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.2 ms
Starting structural reductions in LTL mode, iteration 0 : 42/42 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 42 /42 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 42/42 places, 44/44 transitions.
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 4 ms
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 3 ms
[2024-06-01 04:59:27] [INFO ] Input system was already deterministic with 44 transitions.
Starting structural reductions in LTL mode, iteration 0 : 42/42 places, 44/44 transitions.
Applied a total of 0 rules in 1 ms. Remains 42 /42 variables (removed 0) and now considering 44/44 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 1 ms. Remains : 42/42 places, 44/44 transitions.
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 3 ms
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 3 ms
[2024-06-01 04:59:27] [INFO ] Input system was already deterministic with 44 transitions.
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 3 ms
[2024-06-01 04:59:27] [INFO ] Flatten gal took : 3 ms
[2024-06-01 04:59:27] [INFO ] Export to MCC of 2 properties in file /home/mcc/execution/CTLCardinality.sr.xml took 1 ms.
[2024-06-01 04:59:27] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 42 places, 44 transitions and 171 arcs took 1 ms.
Total runtime 3782 ms.
There are residual formulas that ITS could not solve within timeout
Usage: pnml2lts-sym [-gvqh] [--order=
[--mu-opt] [--saturation=
[--sat-granularity=
[--guidance=
[--action=
[--trace=
[--mu=
[--ctl=
[--save-levels=STRING] [--pg-solve] [--attr=
[--saturating-attractor] [--write-strategy=
[--check-strategy] [--interactive-play] [--player]
[--pg-write=
[--edge-label=
[--mucalc=
[--allow-undefined-edges] [--allow-undefined-values]
[-p|--por=
[--weak=[valmari] (default: uses stronger left-commutativity)]
[--leap] [-r|--regroup=<(T,)+>] [--sloan-w1=
[--cw-max-cols=
[--mh-timeout=
[--graph-metrics] [--regroup-exit] [--regroup-time]
[-g|--pins-guards] [--vset=
[--ldd32-cache=
[--cache-ratio=
[--min-free-nodes=
[--fdd-reorder=
[--vset-cache-diff=
[--next-union] [--peak-nodes] [--maxsum=
[--block-size=
[--debug=
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="RingSingleMessageInMbox-PT-d0m010"
export BK_EXAMINATION="CTLCardinality"
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 RingSingleMessageInMbox-PT-d0m010, examination is CTLCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r524-tall-171679079400017"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/RingSingleMessageInMbox-PT-d0m010.tgz
mv RingSingleMessageInMbox-PT-d0m010 execution
cd execution
if [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "UpperBounds" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] || [ "CTLCardinality" = "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 [ "CTLCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLCardinality" != "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 "CTLCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLCardinality.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 '
echo "FORMULA_NAME $x"
done
elif [ "CTLCardinality" = "ReachabilityDeadlock" ] || [ "CTLCardinality" = "QuasiLiveness" ] || [ "CTLCardinality" = "StableMarking" ] || [ "CTLCardinality" = "Liveness" ] || [ "CTLCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLCardinality"
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 ;