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.r261-smll-167863536600614.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 itstools
Input is Peterson-PT-3, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r261-smll-167863536600614
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.6M
-rw-r--r-- 1 mcc users 29K Feb 25 22:09 CTLCardinality.txt
-rw-r--r-- 1 mcc users 157K Feb 25 22:09 CTLCardinality.xml
-rw-r--r-- 1 mcc users 40K Feb 25 22:05 CTLFireability.txt
-rw-r--r-- 1 mcc users 194K Feb 25 22:05 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 15K Feb 25 16:31 LTLCardinality.txt
-rw-r--r-- 1 mcc users 50K Feb 25 16:31 LTLCardinality.xml
-rw-r--r-- 1 mcc users 11K Feb 25 16:31 LTLFireability.txt
-rw-r--r-- 1 mcc users 44K Feb 25 16:31 LTLFireability.xml
-rw-r--r-- 1 mcc users 93K Feb 25 22:15 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 439K Feb 25 22:15 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 58K Feb 25 22:11 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 283K Feb 25 22:11 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 4.5K Feb 25 16:31 UpperBounds.txt
-rw-r--r-- 1 mcc users 11K Feb 25 16:31 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 Mar 5 18:23 equiv_col
-rw-r--r-- 1 mcc users 2 Mar 5 18:23 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:23 iscolored
-rw-r--r-- 1 mcc users 143K 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 Peterson-PT-3-ReachabilityCardinality-00
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-01
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-02
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-03
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-04
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-05
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-06
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-07
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-08
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-09
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-10
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-11
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-12
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-13
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-14
FORMULA_NAME Peterson-PT-3-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1679045025943

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=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Peterson-PT-3
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202303021504
[2023-03-17 09:23:49] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2023-03-17 09:23:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-17 09:23:49] [INFO ] Load time of PNML (sax parser for PT used): 137 ms
[2023-03-17 09:23:49] [INFO ] Transformed 244 places.
[2023-03-17 09:23:49] [INFO ] Transformed 332 transitions.
[2023-03-17 09:23:49] [INFO ] Found NUPN structural information;
[2023-03-17 09:23:49] [INFO ] Completing missing partition info from NUPN : creating a component with [TestAlone_1_2_3, TestAlone_2_2_3]
[2023-03-17 09:23:49] [INFO ] Parsed PT model containing 244 places and 332 transitions and 1016 arcs in 299 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 74 ms.
Working with output stream class java.io.PrintStream
FORMULA Peterson-PT-3-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Peterson-PT-3-ReachabilityCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Peterson-PT-3-ReachabilityCardinality-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-17 09:23:50] [INFO ] Flatten gal took : 182 ms
[2023-03-17 09:23:50] [INFO ] Flatten gal took : 251 ms
Incomplete random walk after 10000 steps, including 2 resets, run finished after 1029 ms. (steps per millisecond=9 ) properties (out of 13) seen :1
FORMULA Peterson-PT-3-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
[2023-03-17 09:23:50] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality5188304924101664110.gal : 41 ms
[2023-03-17 09:23:51] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality4863063445980509745.prop : 26 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality5188304924101664110.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality4863063445980509745.prop' '--nowitness' '--gen-order' 'FOLLOW'
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 164 ms. (steps per millisecond=60 ) properties (out of 12) seen :0

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202303021504/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...328
Loading property file /tmp/ReachabilityCardinality4863063445980509745.prop.
SDD proceeding with computation,13 properties remain. new max is 4
SDD size :1 after 2
SDD proceeding with computation,13 properties remain. new max is 8
SDD size :2 after 7
SDD proceeding with computation,13 properties remain. new max is 16
SDD size :7 after 8
SDD proceeding with computation,13 properties remain. new max is 32
SDD size :8 after 9
SDD proceeding with computation,13 properties remain. new max is 64
SDD size :9 after 39
SDD proceeding with computation,13 properties remain. new max is 128
SDD size :39 after 53
SDD proceeding with computation,13 properties remain. new max is 256
SDD size :53 after 116
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 368 ms. (steps per millisecond=27 ) properties (out of 12) seen :2
FORMULA Peterson-PT-3-ReachabilityCardinality-14 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
FORMULA Peterson-PT-3-ReachabilityCardinality-10 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
SDD proceeding with computation,13 properties remain. new max is 512
SDD size :116 after 213
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 84 ms. (steps per millisecond=119 ) properties (out of 10) seen :0
SDD proceeding with computation,13 properties remain. new max is 1024
SDD size :213 after 1126
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 131 ms. (steps per millisecond=76 ) properties (out of 10) seen :0
SDD proceeding with computation,13 properties remain. new max is 2048
SDD size :1126 after 4159
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 190 ms. (steps per millisecond=52 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 79 ms. (steps per millisecond=126 ) properties (out of 10) seen :0
SDD proceeding with computation,13 properties remain. new max is 4096
SDD size :4159 after 8058
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 81 ms. (steps per millisecond=123 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 73 ms. (steps per millisecond=137 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 67 ms. (steps per millisecond=149 ) properties (out of 10) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 76 ms. (steps per millisecond=131 ) properties (out of 10) seen :0
Running SMT prover for 10 properties.
[2023-03-17 09:23:52] [INFO ] Flow matrix only has 308 transitions (discarded 24 similar events)
// Phase 1: matrix 308 rows 244 cols
Invariant property Peterson-PT-3-ReachabilityCardinality-14 does not hold.
Reachability property Peterson-PT-3-ReachabilityCardinality-10 is true.
Reachability property Peterson-PT-3-ReachabilityCardinality-09 is true.
[2023-03-17 09:23:52] [INFO ] Computed 15 place invariants in 27 ms
SDD proceeding with computation,10 properties remain. new max is 4096
SDD size :8058 after 33592
SDD proceeding with computation,10 properties remain. new max is 8192
SDD size :33592 after 81554
[2023-03-17 09:23:53] [INFO ] After 436ms SMT Verify possible using all constraints in real domain returned unsat :5 sat :0 real:5
[2023-03-17 09:23:53] [INFO ] [Nat]Absence check using 11 positive place invariants in 10 ms returned sat
[2023-03-17 09:23:53] [INFO ] [Nat]Absence check using 11 positive and 4 generalized place invariants in 3 ms returned sat
[2023-03-17 09:23:53] [INFO ] After 255ms SMT Verify possible using state equation in natural domain returned unsat :7 sat :3
[2023-03-17 09:23:53] [INFO ] State equation strengthened by 57 read => feed constraints.
[2023-03-17 09:23:53] [INFO ] After 77ms SMT Verify possible using 57 Read/Feed constraints in natural domain returned unsat :7 sat :3
[2023-03-17 09:23:53] [INFO ] Deduced a trap composed of 13 places in 148 ms of which 5 ms to minimize.
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 20 places in 136 ms of which 0 ms to minimize.
SDD proceeding with computation,10 properties remain. new max is 16384
SDD size :81554 after 171912
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 13 places in 127 ms of which 1 ms to minimize.
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 14 places in 125 ms of which 1 ms to minimize.
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 9 places in 134 ms of which 1 ms to minimize.
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 27 places in 108 ms of which 1 ms to minimize.
[2023-03-17 09:23:54] [INFO ] Trap strengthening (SAT) tested/added 7/6 trap constraints in 908 ms
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 9 places in 113 ms of which 1 ms to minimize.
[2023-03-17 09:23:54] [INFO ] Deduced a trap composed of 12 places in 110 ms of which 1 ms to minimize.
[2023-03-17 09:23:55] [INFO ] Trap strengthening (SAT) tested/added 3/2 trap constraints in 274 ms
[2023-03-17 09:23:55] [INFO ] After 1331ms SMT Verify possible using trap constraints in natural domain returned unsat :7 sat :3
Attempting to minimize the solution found.
Minimization took 67 ms.
[2023-03-17 09:23:55] [INFO ] After 1918ms SMT Verify possible using all constraints in natural domain returned unsat :7 sat :3
FORMULA Peterson-PT-3-ReachabilityCardinality-12 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Peterson-PT-3-ReachabilityCardinality-07 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Peterson-PT-3-ReachabilityCardinality-06 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Peterson-PT-3-ReachabilityCardinality-05 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Peterson-PT-3-ReachabilityCardinality-04 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Peterson-PT-3-ReachabilityCardinality-01 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA Peterson-PT-3-ReachabilityCardinality-00 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 10 Parikh solutions to 3 different solutions.
Parikh walk visited 0 properties in 14 ms.
Support contains 27 out of 244 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 244/244 places, 332/332 transitions.
Drop transitions removed 70 transitions
Trivial Post-agglo rules discarded 70 transitions
Performed 70 trivial Post agglomeration. Transition count delta: 70
Iterating post reduction 0 with 70 rules applied. Total rules applied 70 place count 244 transition count 262
Reduce places removed 70 places and 0 transitions.
Performed 9 Post agglomeration using F-continuation condition.Transition count delta: 9
Iterating post reduction 1 with 79 rules applied. Total rules applied 149 place count 174 transition count 253
Reduce places removed 9 places and 0 transitions.
Iterating post reduction 2 with 9 rules applied. Total rules applied 158 place count 165 transition count 253
Performed 38 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 38 Pre rules applied. Total rules applied 158 place count 165 transition count 215
Deduced a syphon composed of 38 places in 1 ms
Reduce places removed 38 places and 0 transitions.
Iterating global reduction 3 with 76 rules applied. Total rules applied 234 place count 127 transition count 215
Performed 10 Post agglomeration using F-continuation condition.Transition count delta: 10
Deduced a syphon composed of 10 places in 0 ms
Reduce places removed 10 places and 0 transitions.
Iterating global reduction 3 with 20 rules applied. Total rules applied 254 place count 117 transition count 205
Applied a total of 254 rules in 55 ms. Remains 117 /244 variables (removed 127) and now considering 205/332 (removed 127) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 57 ms. Remains : 117/244 places, 205/332 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 159 ms. (steps per millisecond=62 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 35 ms. (steps per millisecond=285 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 3) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 33 ms. (steps per millisecond=303 ) properties (out of 3) seen :0
Finished probabilistic random walk after 289333 steps, run visited all 3 properties in 897 ms. (steps per millisecond=322 )
Probabilistic random walk after 289333 steps, saw 57982 distinct states, run finished after 898 ms. (steps per millisecond=322 ) properties seen :3
FORMULA Peterson-PT-3-ReachabilityCardinality-15 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Peterson-PT-3-ReachabilityCardinality-13 TRUE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
FORMULA Peterson-PT-3-ReachabilityCardinality-08 FALSE TECHNIQUES TOPOLOGICAL PROBABILISTIC_WALK
ITS runner failed with exception null
java.lang.InterruptedException
at java.base/java.lang.Object.wait(Native Method)
at java.base/java.lang.Thread.join(Thread.java:1304)
at java.base/java.lang.Thread.join(Thread.java:1372)
at fr.lip6.move.gal.application.runner.AbstractRunner.join(AbstractRunner.java:27)
at fr.lip6.move.gal.application.runner.its.ITSRunner.join(ITSRunner.java:177)
at fr.lip6.move.gal.application.solver.global.GlobalPropertySolver.verifyWithSDD(GlobalPropertySolver.java:675)
at fr.lip6.move.gal.application.solver.ReachabilitySolver.lambda$2(ReachabilitySolver.java:63)
at java.base/java.lang.Thread.run(Thread.java:833)
All properties solved without resorting to model-checking.
Total runtime 7032 ms.
SDD proceeding with computation,10 properties remain. new max is 32768
SDD size :171912 after 379304

BK_STOP 1679045037836

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../itstools/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityCardinality = StateSpace ]]
+ /home/mcc/BenchKit/bin//../itstools/bin//..//runeclipse.sh /home/mcc/execution ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ 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//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202303021504.jar
+ VERSION=202303021504
+ echo 'Running Version 202303021504'
+ /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/its-tools -pnfolder /home/mcc/execution -examination ReachabilityCardinality -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//../itstools/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600

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="Peterson-PT-3"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="itstools"
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 itstools"
echo " Input is Peterson-PT-3, 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 r261-smll-167863536600614"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Peterson-PT-3.tgz
mv Peterson-PT-3 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 '' ReachabilityCardinality.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
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 ;