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.r231-tall-167856416400698.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 lolaxred
Input is Medical-PT-14, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r231-tall-167856416400698
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 3.5M
-rw-r--r-- 1 mcc users 6.7K Feb 25 14:41 CTLCardinality.txt
-rw-r--r-- 1 mcc users 62K Feb 25 14:41 CTLCardinality.xml
-rw-r--r-- 1 mcc users 4.7K Feb 25 14:37 CTLFireability.txt
-rw-r--r-- 1 mcc users 40K Feb 25 14:37 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Feb 25 16:23 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Feb 25 16:23 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.3K Feb 25 16:23 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K Feb 25 16:23 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 14:45 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 100K Feb 25 14:45 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 7.9K Feb 25 14:43 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 66K Feb 25 14:43 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Feb 25 16:23 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:23 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 3.1M Mar 5 18:22 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 Medical-PT-14-CTLFireability-00
FORMULA_NAME Medical-PT-14-CTLFireability-01
FORMULA_NAME Medical-PT-14-CTLFireability-02
FORMULA_NAME Medical-PT-14-CTLFireability-03
FORMULA_NAME Medical-PT-14-CTLFireability-04
FORMULA_NAME Medical-PT-14-CTLFireability-05
FORMULA_NAME Medical-PT-14-CTLFireability-06
FORMULA_NAME Medical-PT-14-CTLFireability-07
FORMULA_NAME Medical-PT-14-CTLFireability-08
FORMULA_NAME Medical-PT-14-CTLFireability-09
FORMULA_NAME Medical-PT-14-CTLFireability-10
FORMULA_NAME Medical-PT-14-CTLFireability-11
FORMULA_NAME Medical-PT-14-CTLFireability-12
FORMULA_NAME Medical-PT-14-CTLFireability-13
FORMULA_NAME Medical-PT-14-CTLFireability-14
FORMULA_NAME Medical-PT-14-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1679477268017

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=lolaxred
BK_EXAMINATION=CTLFireability
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Medical-PT-14
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-22 09:27:49] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -timeout, 360, -rebuildPNML]
[2023-03-22 09:27:49] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-22 09:27:49] [INFO ] Load time of PNML (sax parser for PT used): 244 ms
[2023-03-22 09:27:49] [INFO ] Transformed 312 places.
[2023-03-22 09:27:49] [INFO ] Transformed 5431 transitions.
[2023-03-22 09:27:49] [INFO ] Parsed PT model containing 312 places and 5431 transitions and 28790 arcs in 500 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 29 ms.
Deduced a syphon composed of 242 places in 22 ms
Reduce places removed 242 places and 5204 transitions.
Reduce places removed 1 places and 0 transitions.
FORMULA Medical-PT-14-CTLFireability-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-06 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-11 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Support contains 2 out of 69 places. Attempting structural reductions.
Starting structural reductions in LTL mode, iteration 0 : 69/69 places, 227/227 transitions.
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 0 with 2 rules applied. Total rules applied 2 place count 67 transition count 227
Applied a total of 2 rules in 13 ms. Remains 67 /69 variables (removed 2) and now considering 227/227 (removed 0) transitions.
[2023-03-22 09:27:50] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
// Phase 1: matrix 182 rows 67 cols
[2023-03-22 09:27:50] [INFO ] Computed 8 place invariants in 13 ms
[2023-03-22 09:27:50] [INFO ] Implicit Places using invariants in 227 ms returned []
[2023-03-22 09:27:50] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
[2023-03-22 09:27:50] [INFO ] Invariant cache hit.
[2023-03-22 09:27:50] [INFO ] State equation strengthened by 56 read => feed constraints.
[2023-03-22 09:27:50] [INFO ] Implicit Places using invariants and state equation in 154 ms returned []
Implicit Place search using SMT with State Equation took 404 ms to find 0 implicit places.
[2023-03-22 09:27:50] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
[2023-03-22 09:27:50] [INFO ] Invariant cache hit.
[2023-03-22 09:27:50] [INFO ] Dead Transitions using invariants and state equation in 113 ms found 0 transitions.
Starting structural reductions in LTL mode, iteration 1 : 67/69 places, 227/227 transitions.
Finished structural reductions in LTL mode , in 1 iterations and 533 ms. Remains : 67/69 places, 227/227 transitions.
Support contains 2 out of 67 places after structural reductions.
[2023-03-22 09:27:50] [INFO ] Initial state reduction rules for CTL removed 2 formulas.
[2023-03-22 09:27:50] [INFO ] Flatten gal took : 47 ms
[2023-03-22 09:27:50] [INFO ] Initial state reduction rules for CTL removed 3 formulas.
FORMULA Medical-PT-14-CTLFireability-15 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-07 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-02 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA Medical-PT-14-CTLFireability-00 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-22 09:27:50] [INFO ] Flatten gal took : 24 ms
[2023-03-22 09:27:50] [INFO ] Input system was already deterministic with 227 transitions.
Incomplete random walk after 10000 steps, including 50 resets, run finished after 54 ms. (steps per millisecond=185 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10000 steps, including 3 resets, run finished after 19 ms. (steps per millisecond=526 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 1138844 steps, run timeout after 3001 ms. (steps per millisecond=379 ) properties seen :{}
Probabilistic random walk after 1138844 steps, saw 709091 distinct states, run finished after 3002 ms. (steps per millisecond=379 ) properties seen :0
Running SMT prover for 1 properties.
[2023-03-22 09:27:53] [INFO ] Flow matrix only has 182 transitions (discarded 45 similar events)
[2023-03-22 09:27:53] [INFO ] Invariant cache hit.
[2023-03-22 09:27:54] [INFO ] [Real]Absence check using 8 positive place invariants in 1 ms returned sat
[2023-03-22 09:27:54] [INFO ] After 86ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-22 09:27:54] [INFO ] [Nat]Absence check using 8 positive place invariants in 2 ms returned sat
[2023-03-22 09:27:54] [INFO ] After 41ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-22 09:27:54] [INFO ] State equation strengthened by 56 read => feed constraints.
[2023-03-22 09:27:54] [INFO ] After 16ms SMT Verify possible using 56 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-22 09:27:54] [INFO ] Deduced a trap composed of 6 places in 53 ms of which 4 ms to minimize.
[2023-03-22 09:27:54] [INFO ] Trap strengthening procedure managed to obtain unsat after adding 1 trap constraints in 60 ms
[2023-03-22 09:27:54] [INFO ] After 87ms SMT Verify possible using trap constraints in natural domain returned unsat :1 sat :0
[2023-03-22 09:27:54] [INFO ] After 165ms SMT Verify possible using all constraints in natural domain returned unsat :1 sat :0
Fused 1 Parikh solutions to 0 different solutions.
Parikh walk visited 0 properties in 1 ms.
Successfully simplified 1 atomic propositions for a total of 1 simplifications.
FORMULA Medical-PT-14-CTLFireability-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 16 ms
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 17 ms
[2023-03-22 09:27:54] [INFO ] Input system was already deterministic with 227 transitions.
Computed a total of 6 stabilizing places and 33 stable transitions
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 227/227 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 227/227 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 67/67 places, 227/227 transitions.
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 14 ms
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 16 ms
[2023-03-22 09:27:54] [INFO ] Input system was already deterministic with 227 transitions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 227/227 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 227/227 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 67/67 places, 227/227 transitions.
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 13 ms
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 14 ms
[2023-03-22 09:27:54] [INFO ] Input system was already deterministic with 227 transitions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 227/227 transitions.
Applied a total of 0 rules in 2 ms. Remains 67 /67 variables (removed 0) and now considering 227/227 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 3 ms. Remains : 67/67 places, 227/227 transitions.
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 13 ms
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 14 ms
[2023-03-22 09:27:54] [INFO ] Input system was already deterministic with 227 transitions.
Starting structural reductions in LTL mode, iteration 0 : 67/67 places, 227/227 transitions.
Applied a total of 0 rules in 1 ms. Remains 67 /67 variables (removed 0) and now considering 227/227 (removed 0) transitions.
Finished structural reductions in LTL mode , in 1 iterations and 2 ms. Remains : 67/67 places, 227/227 transitions.
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 11 ms
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 12 ms
[2023-03-22 09:27:54] [INFO ] Input system was already deterministic with 227 transitions.
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 12 ms
[2023-03-22 09:27:54] [INFO ] Flatten gal took : 12 ms
[2023-03-22 09:27:54] [INFO ] Export to MCC of 4 properties in file /home/mcc/execution/CTLFireability.sr.xml took 1 ms.
[2023-03-22 09:27:54] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 67 places, 227 transitions and 1142 arcs took 2 ms.
Total runtime 5114 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT Medical-PT-14
BK_EXAMINATION: CTLFireability
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/373
CTLFireability

FORMULA Medical-PT-14-CTLFireability-05 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Medical-PT-14-CTLFireability-09 TRUE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Medical-PT-14-CTLFireability-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

FORMULA Medical-PT-14-CTLFireability-03 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1679477275558

--------------------
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:
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
++ 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 CTLFireability -timeout 360 -rebuildPNML
lola: MEM LIMIT 32
lola: MEM LIMIT 5
lola: NET
lola: input: PNML file (--pnmlnet)
lola: reading net from /home/mcc/execution/373/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/373/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/373/CTLFireability.xml
lola: rewrite Frontend/Parser/formula_rewrite.k:96
lola: rewrite Frontend/Parser/formula_rewrite.k:138
lola: rewrite Frontend/Parser/formula_rewrite.k:96
lola: rewrite Frontend/Parser/formula_rewrite.k:138
lola: rewrite Frontend/Parser/formula_rewrite.k:96
lola: rewrite Frontend/Parser/formula_rewrite.k:138
lola: rewrite Frontend/Parser/formula_rewrite.k:98
lola: rewrite Frontend/Parser/formula_rewrite.k:129
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Created skeleton in 0.000000 secs.
lola: Rule S: 0 transitions removed,0 places removed
lola: rewrite Frontend/Parser/formula_rewrite.k:749
lola: rewrite Frontend/Parser/formula_rewrite.k:776
lola: LAUNCH task # 12 (type EXCL) for 3 Medical-PT-14-CTLFireability-05
lola: time limit : 900 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 15 (type FNDP) for 9 Medical-PT-14-CTLFireability-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 17 (type FNDP) for 6 Medical-PT-14-CTLFireability-09
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 12 (type EXCL) for Medical-PT-14-CTLFireability-05
lola: result : true
lola: markings : 38
lola: fired transitions : 38
lola: time used : 0.000000
lola: memory pages used : 1
lola: LAUNCH task # 16 (type EXCL) for 6 Medical-PT-14-CTLFireability-09
lola: time limit : 1200 sec
lola: memory limit: 32 pages
lola: FINISHED task # 17 (type FNDP) for Medical-PT-14-CTLFireability-09
lola: result : true
lola: fired transitions : 178
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 16 (type EXCL) for Medical-PT-14-CTLFireability-09 (obsolete)
lola: LAUNCH task # 14 (type EXCL) for 9 Medical-PT-14-CTLFireability-10
lola: time limit : 1800 sec
lola: memory limit: 32 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:807
lola: rewrite Frontend/Parser/formula_rewrite.k:811
lola: FINISHED task # 15 (type FNDP) for Medical-PT-14-CTLFireability-10
lola: result : true
lola: fired transitions : 158
lola: tried executions : 1
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 14 (type EXCL) for Medical-PT-14-CTLFireability-10 (obsolete)
lola: LAUNCH task # 1 (type EXCL) for 0 Medical-PT-14-CTLFireability-03
lola: time limit : 3600 sec
lola: memory limit: 32 pages
lola: FINISHED task # 1 (type EXCL) for Medical-PT-14-CTLFireability-03
lola: result : false
lola: markings : 41
lola: fired transitions : 41
lola: time used : 0.000000
lola: memory pages used : 1
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
Medical-PT-14-CTLFireability-03: CTL false CTL model checker
Medical-PT-14-CTLFireability-05: F false state space / EG
Medical-PT-14-CTLFireability-09: EF DL true findpath
Medical-PT-14-CTLFireability-10: AG NODL false findpath


Time elapsed: 0 secs. Pages in use: 1

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="Medical-PT-14"
export BK_EXAMINATION="CTLFireability"
export BK_TOOL="lolaxred"
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 lolaxred"
echo " Input is Medical-PT-14, examination is CTLFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r231-tall-167856416400698"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Medical-PT-14.tgz
mv Medical-PT-14 execution
cd execution
if [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "UpperBounds" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] || [ "CTLFireability" = "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 [ "CTLFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "CTLFireability" != "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 "CTLFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property CTLFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "CTLFireability.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 '' CTLFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "CTLFireability" = "ReachabilityDeadlock" ] || [ "CTLFireability" = "QuasiLiveness" ] || [ "CTLFireability" = "StableMarking" ] || [ "CTLFireability" = "Liveness" ] || [ "CTLFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME CTLFireability"
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 ;