About the Execution of LTSMin+red for PGCD-PT-D02N006
Execution Summary | |||||
Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
357.331 | 7329.00 | 10994.00 | 80.30 | [undef] | Cannot compute |
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.r510-tall-171654365400466.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 PGCD-PT-D02N006, examination is ReachabilityDeadlock
Time confinement is 1800 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r510-tall-171654365400466
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 504K
-rw-r--r-- 1 mcc users 8.1K Apr 11 15:37 CTLCardinality.txt
-rw-r--r-- 1 mcc users 93K Apr 11 15:37 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.1K Apr 11 15:22 CTLFireability.txt
-rw-r--r-- 1 mcc users 50K Apr 11 15:22 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.6K May 6 10:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K May 6 10:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K May 6 10:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 6 10:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 14K Apr 11 15:40 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 155K Apr 11 15:40 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.0K Apr 11 15:38 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 71K Apr 11 15:38 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K May 6 10:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K May 6 10:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 18 16:43 equiv_col
-rw-r--r-- 1 mcc users 8 May 18 16:43 instance
-rw-r--r-- 1 mcc users 6 May 18 16:43 iscolored
-rw-r--r-- 1 mcc users 5.6K 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 ReachabilityDeadlock
=== Now, execution of the tool begins
BK_START 1717232562748
Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=ReachabilityDeadlock
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=1800
BK_INPUT=PGCD-PT-D02N006
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-01 09:02:44] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityDeadlock, -timeout, 180, -rebuildPNML]
[2024-06-01 09:02:44] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-01 09:02:44] [INFO ] Load time of PNML (sax parser for PT used): 42 ms
[2024-06-01 09:02:44] [INFO ] Transformed 9 places.
[2024-06-01 09:02:44] [INFO ] Transformed 9 transitions.
[2024-06-01 09:02:44] [INFO ] Parsed PT model containing 9 places and 9 transitions and 42 arcs in 180 ms.
Parsed 1 properties from file /home/mcc/execution/ReachabilityDeadlock.xml in 6 ms.
Working with output stream class java.io.PrintStream
Built sparse matrix representations for Structural reductions in 3 ms.18530KB memory used
Starting structural reductions in DEADLOCK mode, iteration 0 : 9/9 places, 9/9 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 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
Running 3 sub problems to find dead transitions.
// Phase 1: matrix 9 rows 9 cols
[2024-06-01 09:02:44] [INFO ] Computed 4 invariants in 3 ms
[2024-06-01 09:02:44] [INFO ] State equation strengthened by 3 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 3/9 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/9 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 9/18 variables, 9/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/18 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/18 variables, 0/16 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 18/18 variables, and 16 constraints, problems are : Problem set: 0 solved, 3 unsolved in 246 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 9/9 constraints, ReadFeed: 3/3 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/6 variables, 2/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/6 variables, 0/2 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (OVERLAPS) 3/9 variables, 2/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/9 variables, 0/4 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (OVERLAPS) 9/18 variables, 9/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/18 variables, 3/16 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/18 variables, 3/19 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/18 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 8 (OVERLAPS) 0/18 variables, 0/19 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 18/18 variables, and 19 constraints, problems are : Problem set: 0 solved, 3 unsolved in 79 ms.
Refiners :[Positive P Invariants (semi-flows): 2/2 constraints, Generalized P Invariants (flows): 2/2 constraints, State Equation: 9/9 constraints, ReadFeed: 3/3 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 370ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 401ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 471 ms. Remains : 9/9 places, 9/9 transitions.
Starting structural reductions in DEADLOCK mode, iteration 0 : 9/9 places, 9/9 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 1 ms. Remains 9 /9 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2024-06-01 09:02:44] [INFO ] Invariant cache hit.
[2024-06-01 09:02:45] [INFO ] Implicit Places using invariants in 79 ms returned [6, 7, 8]
Discarding 3 places :
Implicit Place search using SMT only with invariants took 89 ms to find 3 implicit places.
Starting structural reductions in DEADLOCK mode, iteration 1 : 6/9 places, 9/9 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 2 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
Finished structural reductions in DEADLOCK mode , in 2 iterations and 93 ms. Remains : 6/9 places, 9/9 transitions.
Random walk for 1250000 steps, including 0 resets, run took 732 ms (no deadlock found). (steps per millisecond=1707 )
Random directed walk for 1250000 steps, including 0 resets, run took 535 ms (no deadlock found). (steps per millisecond=2336 )
// Phase 1: matrix 9 rows 6 cols
[2024-06-01 09:02:46] [INFO ] Computed 1 invariants in 3 ms
[2024-06-01 09:02:46] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2024-06-01 09:02:46] [INFO ] [Real]Absence check using state equation in 6 ms returned sat
[2024-06-01 09:02:46] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-06-01 09:02:46] [INFO ] [Real]Added 3 Read/Feed constraints in 3 ms returned sat
[2024-06-01 09:02:46] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 09:02:46] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2024-06-01 09:02:46] [INFO ] [Nat]Absence check using state equation in 9 ms returned sat
[2024-06-01 09:02:46] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-06-01 09:02:46] [INFO ] [Nat]Added 3 Read/Feed constraints in 2 ms returned sat
[2024-06-01 09:02:46] [INFO ] Deduced a trap composed of 3 places in 28 ms of which 7 ms to minimize.
[2024-06-01 09:02:46] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 36 ms
[2024-06-01 09:02:46] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 1 ms.
[2024-06-01 09:02:46] [INFO ] Added : 1 causal constraints over 1 iterations in 8 ms. Result :sat
Parikh directed walk for 1500 steps, including 125 resets, run took 7 ms. (steps per millisecond=214 )
Random directed walk for 500001 steps, including 0 resets, run took 200 ms (no deadlock found). (steps per millisecond=2500 )
Random walk for 500000 steps, including 0 resets, run took 239 ms (no deadlock found). (steps per millisecond=2092 )
Random directed walk for 500004 steps, including 0 resets, run took 198 ms (no deadlock found). (steps per millisecond=2525 )
Random walk for 500004 steps, including 0 resets, run took 245 ms (no deadlock found). (steps per millisecond=2040 )
Starting structural reductions in DEADLOCK mode, iteration 0 : 6/6 places, 9/9 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 1 ms. Remains 6 /6 variables (removed 0) and now considering 9/9 (removed 0) transitions.
[2024-06-01 09:02:47] [INFO ] Invariant cache hit.
[2024-06-01 09:02:47] [INFO ] Implicit Places using invariants in 38 ms returned []
[2024-06-01 09:02:47] [INFO ] Invariant cache hit.
[2024-06-01 09:02:47] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-06-01 09:02:47] [INFO ] Implicit Places using invariants and state equation in 36 ms returned []
Implicit Place search using SMT with State Equation took 77 ms to find 0 implicit places.
[2024-06-01 09:02:47] [INFO ] Redundant transitions in 0 ms returned []
Running 3 sub problems to find dead transitions.
[2024-06-01 09:02:47] [INFO ] Invariant cache hit.
[2024-06-01 09:02:47] [INFO ] State equation strengthened by 3 read => feed constraints.
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 3/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 9/15 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 3/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/15 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (OVERLAPS) 0/15 variables, 0/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Real declared 15/15 variables, and 10 constraints, problems are : Problem set: 0 solved, 3 unsolved in 57 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 6/6 constraints, ReadFeed: 3/3 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
Escalating to Integer solving :Problem set: 0 solved, 3 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/3 variables, 0/0 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 1 (OVERLAPS) 3/6 variables, 1/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/6 variables, 0/1 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 3 (OVERLAPS) 9/15 variables, 6/7 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/15 variables, 3/10 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/15 variables, 3/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/15 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
At refinement iteration 7 (OVERLAPS) 0/15 variables, 0/13 constraints. Problems are: Problem set: 0 solved, 3 unsolved
No progress, stopping.
After SMT solving in domain Int declared 15/15 variables, and 13 constraints, problems are : Problem set: 0 solved, 3 unsolved in 51 ms.
Refiners :[Positive P Invariants (semi-flows): 1/1 constraints, State Equation: 6/6 constraints, ReadFeed: 3/3 constraints, PredecessorRefiner: 3/3 constraints, Known Traps: 0/0 constraints]
After SMT, in 113ms problems are : Problem set: 0 solved, 3 unsolved
Search for dead transitions found 0 dead transitions in 113ms
Finished structural reductions in DEADLOCK mode , in 1 iterations and 196 ms. Remains : 6/6 places, 9/9 transitions.
Random walk for 1250008 steps, including 0 resets, run took 591 ms (no deadlock found). (steps per millisecond=2115 )
Random directed walk for 1250009 steps, including 0 resets, run took 495 ms (no deadlock found). (steps per millisecond=2525 )
[2024-06-01 09:02:48] [INFO ] Invariant cache hit.
[2024-06-01 09:02:48] [INFO ] [Real]Absence check using 1 positive place invariants in 2 ms returned sat
[2024-06-01 09:02:48] [INFO ] [Real]Absence check using state equation in 5 ms returned sat
[2024-06-01 09:02:48] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-06-01 09:02:48] [INFO ] [Real]Added 3 Read/Feed constraints in 1 ms returned sat
[2024-06-01 09:02:48] [INFO ] Solution in real domain found non-integer solution.
[2024-06-01 09:02:48] [INFO ] [Nat]Absence check using 1 positive place invariants in 1 ms returned sat
[2024-06-01 09:02:48] [INFO ] [Nat]Absence check using state equation in 6 ms returned sat
[2024-06-01 09:02:48] [INFO ] State equation strengthened by 3 read => feed constraints.
[2024-06-01 09:02:48] [INFO ] [Nat]Added 3 Read/Feed constraints in 1 ms returned sat
[2024-06-01 09:02:48] [INFO ] Deduced a trap composed of 3 places in 21 ms of which 1 ms to minimize.
[2024-06-01 09:02:48] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 29 ms
[2024-06-01 09:02:48] [INFO ] Computed and/alt/rep : 3/6/3 causal constraints (skipped 0 transitions) in 3 ms.
[2024-06-01 09:02:48] [INFO ] Added : 1 causal constraints over 1 iterations in 11 ms. Result :sat
Parikh directed walk for 1500 steps, including 125 resets, run took 8 ms. (steps per millisecond=187 )
Random directed walk for 500002 steps, including 0 resets, run took 199 ms (no deadlock found). (steps per millisecond=2512 )
Random walk for 500000 steps, including 0 resets, run took 238 ms (no deadlock found). (steps per millisecond=2100 )
Random directed walk for 500014 steps, including 0 resets, run took 195 ms (no deadlock found). (steps per millisecond=2564 )
Random walk for 500007 steps, including 0 resets, run took 241 ms (no deadlock found). (steps per millisecond=2074 )
[2024-06-01 09:02:49] [INFO ] Flatten gal took : 16 ms
[2024-06-01 09:02:49] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityDeadlock.sr.xml took 1 ms.
[2024-06-01 09:02:49] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 9 places, 9 transitions and 42 arcs took 3 ms.
Total runtime 5587 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="PGCD-PT-D02N006"
export BK_EXAMINATION="ReachabilityDeadlock"
export BK_TOOL="ltsminxred"
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 ltsminxred"
echo " Input is PGCD-PT-D02N006, examination is ReachabilityDeadlock"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r510-tall-171654365400466"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/PGCD-PT-D02N006.tgz
mv PGCD-PT-D02N006 execution
cd execution
if [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "UpperBounds" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] || [ "ReachabilityDeadlock" = "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 [ "ReachabilityDeadlock" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityDeadlock" != "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 "ReachabilityDeadlock.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityDeadlock.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityDeadlock.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 [ "ReachabilityDeadlock" = "ReachabilityDeadlock" ] || [ "ReachabilityDeadlock" = "QuasiLiveness" ] || [ "ReachabilityDeadlock" = "StableMarking" ] || [ "ReachabilityDeadlock" = "Liveness" ] || [ "ReachabilityDeadlock" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityDeadlock"
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 ;