About the Execution of LTSMin+red for Philosophers-PT-010000
| Execution Summary | |||||
| Max Memory Used (MB) |
Time wait (ms) | CPU Usage (ms) | I/O Wait (ms) | Computed Result | Execution Status |
| 16144.228 | 2537259.00 | 2835016.00 | 20102.40 | ?FF?T?T????????? | 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.r297-tall-167873950200270.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 ltsminxred
Input is Philosophers-PT-010000, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r297-tall-167873950200270
=====================================================================
--------------------
preparation of the directory to be used:
/home/mcc/execution
total 322M
-rw-r--r-- 1 mcc users 11M Feb 26 03:12 CTLCardinality.txt
-rw-r--r-- 1 mcc users 52M Feb 26 03:12 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.9M Feb 25 19:18 CTLFireability.txt
-rw-r--r-- 1 mcc users 34M Feb 25 19:17 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 6.0M Feb 25 16:33 LTLCardinality.txt
-rw-r--r-- 1 mcc users 21M Feb 25 16:33 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.6M Feb 25 16:33 LTLFireability.txt
-rw-r--r-- 1 mcc users 17M Feb 25 16:33 LTLFireability.xml
-rw-r--r-- 1 mcc users 9.9M Feb 26 20:58 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 47M Feb 26 20:58 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 14M Feb 26 12:22 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 79M Feb 26 12:21 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.1M Feb 25 16:33 UpperBounds.txt
-rw-r--r-- 1 mcc users 2.7M Feb 25 16:33 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 22M 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 Philosophers-PT-010000-ReachabilityCardinality-00
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-01
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-02
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-03
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-04
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-05
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-06
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-07
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-08
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-09
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-10
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-11
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-12
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-13
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-14
FORMULA_NAME Philosophers-PT-010000-ReachabilityCardinality-15
=== Now, execution of the tool begins
BK_START 1679478722312
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=ltsminxred
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Philosophers-PT-010000
Applying reductions before tool ltsmin
Invoking reducer
Running Version 202303021504
[2023-03-22 09:52:04] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2023-03-22 09:52:04] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-22 09:52:05] [INFO ] Load time of PNML (sax parser for PT used): 1184 ms
[2023-03-22 09:52:05] [INFO ] Transformed 50000 places.
[2023-03-22 09:52:05] [INFO ] Transformed 50000 transitions.
[2023-03-22 09:52:05] [INFO ] Parsed PT model containing 50000 places and 50000 transitions and 160000 arcs in 1451 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 143577 ms.
Working with output stream class java.io.PrintStream
Interrupted random walk after 4488 steps, including 1 resets, run timeout after 30005 ms. (steps per millisecond=0 ) properties seen 4
FORMULA Philosophers-PT-010000-ReachabilityCardinality-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-PT-010000-ReachabilityCardinality-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-PT-010000-ReachabilityCardinality-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Philosophers-PT-010000-ReachabilityCardinality-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Interrupted Best-First random walk after 1001 steps, including 0 resets, run timeout after 13680 ms. (steps per millisecond=0 ) properties seen 0
Interrupted Best-First random walk after 5001 steps, including 0 resets, run timeout after 5458 ms. (steps per millisecond=0 ) properties seen 0
Interrupted Best-First random walk after 2001 steps, including 0 resets, run timeout after 7692 ms. (steps per millisecond=0 ) properties seen 0
Interrupted Best-First random walk after 6001 steps, including 0 resets, run timeout after 5804 ms. (steps per millisecond=1 ) properties seen 0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 3294 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 3084 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 3170 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 3103 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 3012 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2723 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 3050 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2863 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Running SMT prover for 12 properties.
// Phase 1: matrix 50000 rows 50000 cols
[2023-03-22 09:55:57] [INFO ] Computed 20000 place invariants in 257 ms
[2023-03-22 09:56:22] [INFO ] [Real]Absence check using 20000 positive place invariants in 5875 ms returned unknown
java.lang.RuntimeException: SMT solver raised an error when submitting script. Raised (error "Error writing to Z3 solver: java.io.IOException: Stream closed...
at fr.lip6.move.gal.structural.smt.SMTUtils.execAndCheckResult(SMTUtils.java:251)
at fr.lip6.move.gal.structural.smt.DeadlockTester.verifyPossible(DeadlockTester.java:629)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMTIncremental(DeadlockTester.java:339)
at fr.lip6.move.gal.structural.smt.DeadlockTester.testUnreachableWithSMT(DeadlockTester.java:223)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.applyReductions(ReachabilitySolver.java:95)
at fr.lip6.move.gal.application.Application.startNoEx(Application.java:902)
at fr.lip6.move.gal.application.Application.start(Application.java:178)
at fr.lip6.move.gal.itscl.application.Application.start(Application.java:45)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
at org.eclipse.equinox.launcher.Main.run(Main.java:1467)
at org.eclipse.equinox.launcher.Main.main(Main.java:1440)
[2023-03-22 09:56:22] [WARNING] SMT solver failed with error :SMT solver raised an error when submitting script.... while checking expressions.
[2023-03-22 09:56:22] [INFO ] After 25175ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0
Fused 12 Parikh solutions to 1 different solutions.
Parikh walk visited 0 properties in 0 ms.
Support contains 50000 out of 50000 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 50000/50000 places, 50000/50000 transitions.
Applied a total of 0 rules in 530 ms. Remains 50000 /50000 variables (removed 0) and now considering 50000/50000 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 539 ms. Remains : 50000/50000 places, 50000/50000 transitions.
Interrupted random walk after 4493 steps, including 1 resets, run timeout after 30005 ms. (steps per millisecond=0 ) properties seen 0
Interrupted Best-First random walk after 1001 steps, including 0 resets, run timeout after 14911 ms. (steps per millisecond=0 ) properties seen 0
Interrupted Best-First random walk after 6001 steps, including 0 resets, run timeout after 5959 ms. (steps per millisecond=1 ) properties seen 0
Interrupted Best-First random walk after 2001 steps, including 0 resets, run timeout after 8022 ms. (steps per millisecond=0 ) properties seen 0
Interrupted Best-First random walk after 6001 steps, including 0 resets, run timeout after 5923 ms. (steps per millisecond=1 ) properties seen 0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2902 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2945 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2964 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2942 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2695 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2689 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2813 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
Incomplete Best-First random walk after 10001 steps, including 0 resets, run finished after 2734 ms. (steps per millisecond=3 ) properties (out of 12) seen :0
pnml2lts-sym model.pnml --lace-workers=4 --vset=lddmc --saturation=sat -rbs,w2W,ru,hf --sylvan-sizes=20,28,20,28 --invariant=/tmp/461/inv_0_ --invariant=/tmp/461/inv_1_ --invariant=/tmp/461/inv_2_ --invariant=/tmp/461/inv_3_ --invariant=/tmp/461/inv_4_ --invariant=/tmp/461/inv_5_ --invariant=/tmp/461/inv_6_ --invariant=/tmp/461/inv_7_ --invariant=/tmp/461/inv_8_ --invariant=/tmp/461/inv_9_ --invariant=/tmp/461/inv_10_ --invariant=/tmp/461/inv_11_ --invariant=/tmp/461/inv_12_ --invariant=/tmp/461/inv_13_ --invariant=/tmp/461/inv_14_ --invariant=/tmp/461/inv_15_ --inv-par
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-00
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-01
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-02
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-03
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-04
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-05
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-06
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-07
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-08
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-09
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-10
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-11
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-12
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-13
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-14
Could not compute solution for formula : Philosophers-PT-010000-ReachabilityCardinality-15
BK_STOP 1679481259571
--------------------
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 ReachabilityCardinality -timeout 360 -rebuildPNML
mcc2023
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-00
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_0_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-01
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_1_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-02
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_2_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-03
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_3_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-04
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_4_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-05
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_5_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-06
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_6_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-07
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_7_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-08
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_8_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-09
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_9_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-10
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_10_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-11
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_11_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-12
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_12_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-13
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_13_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-14
rfs formula type AG
rfs formula formula --invariant=/tmp/461/inv_14_
rfs formula name Philosophers-PT-010000-ReachabilityCardinality-15
rfs formula type EF
rfs formula formula --invariant=/tmp/461/inv_15_
pnml2lts-sym: Exploration order is bfs-prev
pnml2lts-sym: Saturation strategy is sat
pnml2lts-sym: Guided search strategy is unguided
pnml2lts-sym: Attractor strategy is default
pnml2lts-sym: opening model.pnml
pnml2lts-sym: Edge label is id
Warning: program compiled against libxml 210 using older 209
pnml2lts-sym: Petri net has 50000 places, 50000 transitions and 160000 arcs
pnml2lts-sym: Petri net Philosophers-PT-010000 analyzed
pnml2lts-sym: There are no safe places
pnml2lts-sym: Loading Petri net took 2.200 real 1.010 user 1.190 sys
pnml2lts-sym: Initializing regrouping layer
pnml2lts-sym: Regroup specification: bs,w2W,ru,hf
pnml2lts-sym: Regroup Boost's Sloan
pnml2lts-sym: Regroup over-approximate must-write to may-write
pnml2lts-sym: Regroup Row sUbsume
pnml2lts-sym: Reqroup Horizontal Flip
pnml2lts-sym: Regrouping: 50000->50000 groups
pnml2lts-sym: Regrouping took 1953.800 real 1946.820 user 6.900 sys
pnml2lts-sym: state vector length is 50000; there are 50000 groups
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="Philosophers-PT-010000"
export BK_EXAMINATION="ReachabilityCardinality"
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 2-5348"
echo " Executing tool ltsminxred"
echo " Input is Philosophers-PT-010000, examination is ReachabilityCardinality"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r297-tall-167873950200270"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"
tar xzf /home/mcc/BenchKit/INPUTS/Philosophers-PT-010000.tgz
mv Philosophers-PT-010000 execution
cd execution
if [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "UpperBounds" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] || [ "ReachabilityCardinality" = "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 [ "ReachabilityCardinality" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityCardinality" != "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 "ReachabilityCardinality.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityCardinality.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityCardinality.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 [ "ReachabilityCardinality" = "ReachabilityDeadlock" ] || [ "ReachabilityCardinality" = "QuasiLiveness" ] || [ "ReachabilityCardinality" = "StableMarking" ] || [ "ReachabilityCardinality" = "Liveness" ] || [ "ReachabilityCardinality" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityCardinality"
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 ;