fond
Model Checking Contest 2024
14th edition, Geneva, Switzerland, June 25, 2024
Execution of r579-smll-171734921400181
Last Updated
July 7, 2024

About the Execution of LTSMin+red for MedleyA-PT-23

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
329.380 17841.00 31681.00 339.90 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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.r579-smll-171734921400181.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 ltsminxred
Input is MedleyA-PT-23, examination is UpperBounds
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r579-smll-171734921400181
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 608K
-rw-r--r-- 1 mcc users 8.3K Jun 2 17:16 CTLCardinality.txt
-rw-r--r-- 1 mcc users 96K Jun 2 17:16 CTLCardinality.xml
-rw-r--r-- 1 mcc users 6.7K Jun 2 17:16 CTLFireability.txt
-rw-r--r-- 1 mcc users 68K Jun 2 17:16 CTLFireability.xml
-rw-r--r-- 1 mcc users 3.4K Jun 2 17:12 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Jun 2 17:12 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.2K Jun 2 17:12 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Jun 2 17:12 LTLFireability.xml
-rw-r--r-- 1 mcc users 1 Jun 2 16:33 NewModel
-rw-r--r-- 1 mcc users 11K Jun 2 17:16 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 111K Jun 2 17:16 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.2K Jun 2 17:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 59K Jun 2 17:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Jun 2 17:12 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Jun 2 17:12 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 equiv_col
-rw-r--r-- 1 mcc users 3 Jun 2 16:33 instance
-rw-r--r-- 1 mcc users 6 Jun 2 16:33 iscolored
-rw-r--r-- 1 mcc users 150K Jun 2 16:33 model.pnml

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

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

The expected result is a vector of positive values
NUM_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME MedleyA-PT-23-UpperBounds-00
FORMULA_NAME MedleyA-PT-23-UpperBounds-01
FORMULA_NAME MedleyA-PT-23-UpperBounds-02
FORMULA_NAME MedleyA-PT-23-UpperBounds-03
FORMULA_NAME MedleyA-PT-23-UpperBounds-04
FORMULA_NAME MedleyA-PT-23-UpperBounds-05
FORMULA_NAME MedleyA-PT-23-UpperBounds-06
FORMULA_NAME MedleyA-PT-23-UpperBounds-07
FORMULA_NAME MedleyA-PT-23-UpperBounds-08
FORMULA_NAME MedleyA-PT-23-UpperBounds-09
FORMULA_NAME MedleyA-PT-23-UpperBounds-10
FORMULA_NAME MedleyA-PT-23-UpperBounds-11
FORMULA_NAME MedleyA-PT-23-UpperBounds-12
FORMULA_NAME MedleyA-PT-23-UpperBounds-13
FORMULA_NAME MedleyA-PT-23-UpperBounds-14
FORMULA_NAME MedleyA-PT-23-UpperBounds-15

=== Now, execution of the tool begins

BK_START 1717366335324

Invoking MCC driver with
BK_TOOL=ltsminxred
BK_EXAMINATION=UpperBounds
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=MedleyA-PT-23
BK_MEMORY_CONFINEMENT=16384
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202405141337
[2024-06-02 22:12:17] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, UpperBounds, -timeout, 360, -rebuildPNML]
[2024-06-02 22:12:17] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2024-06-02 22:12:17] [INFO ] Load time of PNML (sax parser for PT used): 224 ms
[2024-06-02 22:12:17] [INFO ] Transformed 378 places.
[2024-06-02 22:12:17] [INFO ] Transformed 614 transitions.
[2024-06-02 22:12:17] [INFO ] Found NUPN structural information;
[2024-06-02 22:12:18] [INFO ] Parsed PT model containing 378 places and 614 transitions and 1969 arcs in 469 ms.
Parsed 16 properties from file /home/mcc/execution/UpperBounds.xml in 188 ms.
Current structural bounds on expressions (Initiallly, because the net is safe) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
Current structural bounds on expressions (Before main loop) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
// Phase 1: matrix 614 rows 378 cols
[2024-06-02 22:12:18] [INFO ] Computed 11 invariants in 39 ms
Current structural bounds on expressions (after invariants) : Max Seen:[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] Max Struct:[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
RANDOM walk for 10000 steps (4 resets) in 120 ms. (82 steps per ms)
FORMULA MedleyA-PT-23-UpperBounds-11 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-08 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-06 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-04 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-14 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-12 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-10 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-09 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-03 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-01 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-00 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-13 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-07 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA MedleyA-PT-23-UpperBounds-02 1 TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (35 resets) in 219 ms. (181 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[0, 0] Max Struct:[1, 1]
[2024-06-02 22:12:18] [INFO ] Invariant cache hit.
[2024-06-02 22:12:19] [INFO ] [Real]Absence check using 9 positive place invariants in 22 ms returned sat
[2024-06-02 22:12:19] [INFO ] [Real]Absence check using 9 positive and 2 generalized place invariants in 9 ms returned sat
[2024-06-02 22:12:19] [INFO ] [Real]Absence check using state equation in 457 ms returned sat
[2024-06-02 22:12:20] [INFO ] Deduced a trap composed of 19 places in 328 ms of which 23 ms to minimize.
[2024-06-02 22:12:20] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 22:12:20] [INFO ] [Nat]Absence check using 9 positive place invariants in 19 ms returned sat
[2024-06-02 22:12:20] [INFO ] [Nat]Absence check using 9 positive and 2 generalized place invariants in 7 ms returned sat
[2024-06-02 22:12:20] [INFO ] [Nat]Absence check using state equation in 383 ms returned sat
[2024-06-02 22:12:21] [INFO ] Deduced a trap composed of 19 places in 223 ms of which 26 ms to minimize.
[2024-06-02 22:12:21] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 329 ms
[2024-06-02 22:12:21] [INFO ] Computed and/alt/rep : 509/1869/509 causal constraints (skipped 104 transitions) in 121 ms.
[2024-06-02 22:12:24] [INFO ] Added : 177 causal constraints over 36 iterations in 2713 ms. Result :sat
Minimization took 504 ms.
[2024-06-02 22:12:24] [INFO ] [Real]Absence check using 9 positive place invariants in 18 ms returned sat
[2024-06-02 22:12:24] [INFO ] [Real]Absence check using 9 positive and 2 generalized place invariants in 17 ms returned sat
[2024-06-02 22:12:25] [INFO ] [Real]Absence check using state equation in 365 ms returned sat
[2024-06-02 22:12:25] [INFO ] Deduced a trap composed of 65 places in 372 ms of which 7 ms to minimize.
[2024-06-02 22:12:25] [INFO ] Solution in real domain found non-integer solution.
[2024-06-02 22:12:25] [INFO ] [Nat]Absence check using 9 positive place invariants in 18 ms returned sat
[2024-06-02 22:12:25] [INFO ] [Nat]Absence check using 9 positive and 2 generalized place invariants in 6 ms returned sat
[2024-06-02 22:12:26] [INFO ] [Nat]Absence check using state equation in 351 ms returned sat
[2024-06-02 22:12:26] [INFO ] Deduced a trap composed of 65 places in 369 ms of which 7 ms to minimize.
[2024-06-02 22:12:26] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 444 ms
[2024-06-02 22:12:26] [INFO ] Computed and/alt/rep : 509/1869/509 causal constraints (skipped 104 transitions) in 102 ms.
[2024-06-02 22:12:28] [INFO ] Added : 134 causal constraints over 27 iterations in 1897 ms. Result :sat
Minimization took 456 ms.
Current structural bounds on expressions (after SMT) : Max Seen:[0, 0] Max Struct:[1, 1]
Current structural bounds on expressions (After Parikh guided walk) : Max Seen:[1, 1] Max Struct:[1, 1]
Support contains 2 out of 378 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 378/378 places, 614/614 transitions.
Graph (trivial) has 334 edges and 378 vertex of which 39 / 378 are part of one of the 3 SCC in 8 ms
Free SCC test removed 36 places
Drop transitions (Empty/Sink Transition effects.) removed 48 transitions
Reduce isomorphic transitions removed 48 transitions.
Graph (complete) has 1035 edges and 342 vertex of which 339 are kept as prefixes of interest. Removing 3 places using SCC suffix rule.5 ms
Discarding 3 places :
Also discarding 0 output transitions
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 113 transitions
Trivial Post-agglo rules discarded 113 transitions
Performed 113 trivial Post agglomeration. Transition count delta: 113
Iterating post reduction 0 with 116 rules applied. Total rules applied 118 place count 339 transition count 450
Reduce places removed 113 places and 0 transitions.
Ensure Unique test removed 4 transitions
Reduce isomorphic transitions removed 4 transitions.
Performed 2 Post agglomeration using F-continuation condition.Transition count delta: 2
Iterating post reduction 1 with 119 rules applied. Total rules applied 237 place count 226 transition count 444
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 239 place count 224 transition count 444
Discarding 75 places :
Symmetric choice reduction at 3 with 75 rule applications. Total rules 314 place count 149 transition count 369
Iterating global reduction 3 with 75 rules applied. Total rules applied 389 place count 149 transition count 369
Performed 10 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 10 Pre rules applied. Total rules applied 389 place count 149 transition count 359
Deduced a syphon composed of 10 places in 3 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 3 with 20 rules applied. Total rules applied 409 place count 139 transition count 359
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 3 with 3 rules applied. Total rules applied 412 place count 139 transition count 356
Discarding 36 places :
Symmetric choice reduction at 4 with 36 rule applications. Total rules 448 place count 103 transition count 248
Iterating global reduction 4 with 36 rules applied. Total rules applied 484 place count 103 transition count 248
Ensure Unique test removed 12 transitions
Reduce isomorphic transitions removed 12 transitions.
Drop transitions (Trivial Post-Agglo cleanup.) removed 3 transitions
Trivial Post-agglo rules discarded 3 transitions
Performed 3 trivial Post agglomeration. Transition count delta: 3
Iterating post reduction 4 with 15 rules applied. Total rules applied 499 place count 103 transition count 233
Reduce places removed 3 places and 0 transitions.
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Iterating post reduction 5 with 6 rules applied. Total rules applied 505 place count 100 transition count 230
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 507 place count 98 transition count 226
Iterating global reduction 6 with 2 rules applied. Total rules applied 509 place count 98 transition count 226
Discarding 2 places :
Symmetric choice reduction at 6 with 2 rule applications. Total rules 511 place count 96 transition count 220
Iterating global reduction 6 with 2 rules applied. Total rules applied 513 place count 96 transition count 220
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 6 with 2 rules applied. Total rules applied 515 place count 96 transition count 218
Performed 14 Post agglomeration using F-continuation condition.Transition count delta: 14
Deduced a syphon composed of 14 places in 1 ms
Reduce places removed 14 places and 0 transitions.
Iterating global reduction 7 with 28 rules applied. Total rules applied 543 place count 82 transition count 204
Performed 8 Post agglomeration using F-continuation condition.Transition count delta: -14
Deduced a syphon composed of 8 places in 0 ms
Reduce places removed 8 places and 0 transitions.
Iterating global reduction 7 with 16 rules applied. Total rules applied 559 place count 74 transition count 218
Drop transitions (Redundant composition of simpler transitions.) removed 7 transitions
Redundant transition composition rules discarded 7 transitions
Iterating global reduction 7 with 7 rules applied. Total rules applied 566 place count 74 transition count 211
Discarding 2 places :
Symmetric choice reduction at 7 with 2 rule applications. Total rules 568 place count 72 transition count 205
Iterating global reduction 7 with 2 rules applied. Total rules applied 570 place count 72 transition count 205
Ensure Unique test removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 7 with 2 rules applied. Total rules applied 572 place count 72 transition count 203
Free-agglomeration rule applied 21 times.
Iterating global reduction 8 with 21 rules applied. Total rules applied 593 place count 72 transition count 182
Reduce places removed 21 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 6 transitions
Reduce isomorphic transitions removed 6 transitions.
Iterating post reduction 8 with 27 rules applied. Total rules applied 620 place count 51 transition count 176
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 9 with 6 rules applied. Total rules applied 626 place count 48 transition count 173
Drop transitions (Redundant composition of simpler transitions.) removed 3 transitions
Redundant transition composition rules discarded 3 transitions
Iterating global reduction 9 with 3 rules applied. Total rules applied 629 place count 48 transition count 170
Reduce places removed 1 places and 1 transitions.
Iterating global reduction 9 with 1 rules applied. Total rules applied 630 place count 47 transition count 169
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 9 with 1 rules applied. Total rules applied 631 place count 46 transition count 169
Applied a total of 631 rules in 306 ms. Remains 46 /378 variables (removed 332) and now considering 169/614 (removed 445) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 328 ms. Remains : 46/378 places, 169/614 transitions.
[2024-06-02 22:12:29] [INFO ] Flow matrix only has 166 transitions (discarded 3 similar events)
// Phase 1: matrix 166 rows 46 cols
[2024-06-02 22:12:29] [INFO ] Computed 10 invariants in 5 ms
Current structural bounds on expressions (after invariants) : Max Seen:[1, 1] Max Struct:[1, 1]
FORMULA MedleyA-PT-23-UpperBounds-15 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA MedleyA-PT-23-UpperBounds-05 1 TECHNIQUES TOPOLOGICAL INITIAL_STATE
RANDOM walk for 1000000 steps (13224 resets) in 3309 ms. (302 steps per ms)
BEST_FIRST walk for 0 steps (0 resets) in 0 ms. (0 steps per ms)
Current structural bounds on expressions (after WALK) : Max Seen:[] Max Struct:[]
RANDOM walk for 0 steps (0 resets) in 4 ms. (0 steps per ms) remains 0/0 properties
Finished probabilistic random walk after 0 steps, run visited all 0 properties in 0 ms. (steps per millisecond=0 )
Current structural bounds on expressions (After reachability solving 0 queries.) : Max Seen:[] Max Struct:[]
All properties solved without resorting to model-checking.
Total runtime 15611 ms.
ITS solved all properties within timeout

BK_STOP 1717366353165

--------------------
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 UpperBounds -timeout 360 -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="MedleyA-PT-23"
export BK_EXAMINATION="UpperBounds"
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 MedleyA-PT-23, examination is UpperBounds"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r579-smll-171734921400181"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/MedleyA-PT-23.tgz
mv MedleyA-PT-23 execution
cd execution
if [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "UpperBounds" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] || [ "UpperBounds" = "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 [ "UpperBounds" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "UpperBounds" != "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 "UpperBounds.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property UpperBounds.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "UpperBounds.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 '' UpperBounds.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "UpperBounds" = "ReachabilityDeadlock" ] || [ "UpperBounds" = "QuasiLiveness" ] || [ "UpperBounds" = "StableMarking" ] || [ "UpperBounds" = "Liveness" ] || [ "UpperBounds" = "OneSafe" ] ; then
echo "FORMULA_NAME UpperBounds"
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 ;