fond
Model Checking Contest 2021
11th edition, Paris, France, June 23, 2021
Execution of r216-tall-162098204600146
Last Updated
Jun 28, 2021

About the Execution of ITS-Tools for SharedMemory-PT-000100

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
8019.955 1318145.00 1322670.00 25330.10 ?????FT????????? normal

Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r216-tall-162098204600146.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2021-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is SharedMemory-PT-000100, examination is CTLFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r216-tall-162098204600146
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 151M
-rw-r--r-- 1 mcc users 11M May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 40M May 10 09:44 CTLCardinality.xml
-rw-r--r-- 1 mcc users 11M May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 41M May 10 09:44 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 1.3M Mar 28 16:35 LTLCardinality.txt
-rw-r--r-- 1 mcc users 3.5M Mar 28 16:35 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.6M Mar 28 16:35 LTLFireability.txt
-rw-r--r-- 1 mcc users 11M Mar 28 16:35 LTLFireability.xml
-rw-r--r-- 1 mcc users 1.3M Mar 27 11:28 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 3.1M Mar 27 11:28 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.4M Mar 25 15:13 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 6.8M Mar 25 15:13 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 611K Mar 22 08:15 UpperBounds.txt
-rw-r--r-- 1 mcc users 1.2M Mar 22 08:15 UpperBounds.xml
-rw-r--r-- 1 mcc users 5 May 5 16:52 equiv_col
-rw-r--r-- 1 mcc users 7 May 5 16:52 instance
-rw-r--r-- 1 mcc users 6 May 5 16:52 iscolored
-rw-r--r-- 1 mcc users 16M May 5 16:52 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 SharedMemory-PT-000100-CTLFireability-00
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-01
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-02
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-03
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-04
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-05
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-06
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-07
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-08
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-09
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-10
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-11
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-12
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-13
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-14
FORMULA_NAME SharedMemory-PT-000100-CTLFireability-15

=== Now, execution of the tool begins

BK_START 1621046154364

Running Version 0
[2021-05-15 02:35:55] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, CTLFireability, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2021-05-15 02:35:55] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-15 02:35:56] [INFO ] Load time of PNML (sax parser for PT used): 684 ms
[2021-05-15 02:35:56] [INFO ] Transformed 10301 places.
[2021-05-15 02:35:56] [INFO ] Transformed 20100 transitions.
[2021-05-15 02:35:56] [INFO ] Found NUPN structural information;
[2021-05-15 02:35:56] [INFO ] Parsed PT model containing 10301 places and 20100 transitions in 816 ms.
Parsed 16 properties from file /home/mcc/execution/CTLFireability.xml in 673 ms.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
[2021-05-15 02:35:57] [INFO ] Reduced 100 identical enabling conditions.
Support contains 10301 out of 10301 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 10301/10301 places, 20100/20100 transitions.
Applied a total of 0 rules in 84 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
// Phase 1: matrix 20100 rows 10301 cols
[2021-05-15 02:36:26] [INFO ] Computed 201 place invariants in 2937 ms
[2021-05-15 02:36:27] [INFO ] Implicit Places using invariants in 4754 ms returned []
Implicit Place search using SMT only with invariants took 4793 ms to find 0 implicit places.
// Phase 1: matrix 20100 rows 10301 cols
[2021-05-15 02:36:30] [INFO ] Computed 201 place invariants in 2801 ms
[2021-05-15 02:36:32] [INFO ] Dead Transitions using invariants and state equation in 4292 ms returned []
Finished structural reductions, in 1 iterations. Remains : 10301/10301 places, 20100/20100 transitions.
[2021-05-15 02:36:38] [INFO ] Flatten gal took : 3740 ms
[2021-05-15 02:37:14] [INFO ] Flatten gal took : 3830 ms
[2021-05-15 02:37:51] [INFO ] Input system was already deterministic with 20100 transitions.
Interrupted random walk after 3826 steps, including 0 resets, run timeout after 30012 ms. (steps per millisecond=0 ) properties seen :{0=1, 1=1, 2=1, 5=1, 7=1, 8=1, 9=1, 10=1, 13=1, 16=1, 17=1, 23=1, 24=1, 27=1, 29=1, 30=1, 31=1, 32=1, 33=1, 34=1, 35=1, 36=1, 37=1, 38=1, 39=1, 40=1, 41=1, 42=1, 43=1, 44=1, 45=1, 46=1, 47=1, 48=1, 49=1, 50=1, 52=1, 53=1, 54=1, 55=1, 56=1, 57=1, 59=1, 60=1, 61=1, 62=1, 63=1, 64=1, 65=1, 67=1, 68=1, 69=1, 70=1, 71=1, 72=1, 73=1, 74=1, 75=1, 76=1, 77=1}
Running SMT prover for 18 properties.
// Phase 1: matrix 20100 rows 10301 cols
[2021-05-15 02:38:25] [INFO ] Computed 201 place invariants in 2659 ms
[2021-05-15 02:38:37] [INFO ] [Real]Absence check using 201 positive place invariants in 527 ms returned sat
[2021-05-15 02:38:41] [INFO ] SMT Verify possible in real domain returnedunsat :0 sat :0 real:18
[2021-05-15 02:38:51] [INFO ] [Nat]Absence check using 201 positive place invariants in 408 ms returned sat
[2021-05-15 02:38:59] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-15 02:39:22] [INFO ] [Nat]Absence check using state equation in 23773 ms returned unsat :8 sat :10
Attempting to minimize the solution found.
Minimization took 9808 ms.
[2021-05-15 02:39:32] [INFO ] SMT Verify possible in nat domain returned unsat :8 sat :10
Successfully simplified 8 atomic propositions for a total of 16 simplifications.
Drop transitions removed 9900 transitions
Trivial Post-agglo rules discarded 9900 transitions
Performed 9900 trivial Post agglomeration. Transition count delta: 9900
Iterating post reduction 0 with 9900 rules applied. Total rules applied 9900 place count 10301 transition count 10200
Reduce places removed 10001 places and 0 transitions.
Ensure Unique test removed 9800 transitions
Reduce isomorphic transitions removed 9800 transitions.
Graph (trivial) has 400 edges and 300 vertex of which 300 / 300 are part of one of the 100 SCC in 4 ms
Free SCC test removed 200 places
Iterating post reduction 1 with 19802 rules applied. Total rules applied 29702 place count 100 transition count 400
Reduce places removed 100 places and 0 transitions.
Ensure Unique test removed 399 transitions
Reduce isomorphic transitions removed 399 transitions.
Iterating post reduction 2 with 499 rules applied. Total rules applied 30201 place count 0 transition count 1
Applied a total of 30201 rules in 376 ms. Remains 0 /10301 variables (removed 10301) and now considering 1/20100 (removed 20099) transitions.
[2021-05-15 02:39:57] [INFO ] Removed 1 GAL types that were empty due to variable simplifications.
petri,
[2021-05-15 02:39:57] [INFO ] Flatten gal took : 1 ms
[2021-05-15 02:39:57] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA SharedMemory-PT-000100-CTLFireability-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2021-05-15 02:39:57] [INFO ] Flatten gal took : 0 ms
[2021-05-15 02:39:57] [INFO ] Input system was already deterministic with 1 transitions.
Applied a total of 0 rules in 387 ms. Remains 10301 /10301 variables (removed 0) and now considering 20100/20100 (removed 0) transitions.
[2021-05-15 02:40:03] [INFO ] Flatten gal took : 911 ms
[2021-05-15 02:40:03] [INFO ] Initial state reduction rules for CTL removed 1 formulas.
FORMULA SharedMemory-PT-000100-CTLFireability-06 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
[2021-05-15 02:40:03] [INFO ] Flatten gal took : 696 ms
[2021-05-15 02:40:05] [INFO ] Input system was already deterministic with 20100 transitions.
[2021-05-15 02:40:08] [INFO ] Flatten gal took : 2095 ms
[2021-05-15 02:40:24] [INFO ] Flatten gal took : 1918 ms
[2021-05-15 02:40:40] [INFO ] Applying decomposition
[2021-05-15 02:40:42] [INFO ] Flatten gal took : 2268 ms
Converted graph to binary with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/convert-linux64, -i, /tmp/graph14954148978604359263.txt, -o, /tmp/graph14954148978604359263.bin, -w, /tmp/graph14954148978604359263.weights], workingDir=null]
Built communities with : CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.louvain.binaries_1.0.0.202104292328/bin/louvain-linux64, /tmp/graph14954148978604359263.bin, -l, -1, -v, -w, /tmp/graph14954148978604359263.weights, -q, 0, -e, 0.001], workingDir=null]
[2021-05-15 02:40:46] [INFO ] Decomposing Gal with order
[2021-05-15 02:40:47] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-15 02:44:16] [INFO ] Removed a total of 39002 redundant transitions.
[2021-05-15 02:44:19] [INFO ] Flatten gal took : 5409 ms
[2021-05-15 02:45:22] [INFO ] Fuse similar labels procedure discarded/fused a total of 1032 labels/synchronizations in 716 ms.
[2021-05-15 02:45:23] [INFO ] Time to serialize gal into /tmp/CTLFireability14249724768749353601.gal : 173 ms
[2021-05-15 02:45:47] [INFO ] Time to serialize properties into /tmp/CTLFireability12310123669652375071.ctl : 23455 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/CTLFireability14249724768749353601.gal, -t, CGAL, -ctl, /tmp/CTLFireability12310123669652375071.ctl], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/CTLFireability14249724768749353601.gal -t CGAL -ctl /tmp/CTLFireability12310123669652375071.ctl
No direction supplied, using forward translation only.
memory exhausted in line 7 with token "("
ITS-tools command line returned an error code 1
[2021-05-15 02:46:07] [INFO ] Applying decomposition
[2021-05-15 02:46:09] [INFO ] Flatten gal took : 2479 ms
[2021-05-15 02:46:11] [INFO ] Decomposing Gal with order
[2021-05-15 02:46:12] [INFO ] Rewriting arrays to variables to allow decomposition.
[2021-05-15 02:55:13] [INFO ] Removed a total of 39200 redundant transitions.
[2021-05-15 02:55:18] [INFO ] Flatten gal took : 342872 ms
[2021-05-15 02:55:22] [INFO ] Fuse similar labels procedure discarded/fused a total of 0 labels/synchronizations in 70 ms.
[2021-05-15 02:55:23] [INFO ] Time to serialize gal into /tmp/CTLFireability8286222938689063983.gal : 78 ms
[2021-05-15 02:55:46] [INFO ] Time to serialize properties into /tmp/CTLFireability12406505072106315343.ctl : 23002 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/CTLFireability8286222938689063983.gal, -t, CGAL, -ctl, /tmp/CTLFireability12406505072106315343.ctl], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/CTLFireability8286222938689063983.gal -t CGAL -ctl /tmp/CTLFireability12406505072106315343.ctl
No direction supplied, using forward translation only.
memory exhausted in line 7 with token "("
ITS-tools command line returned an error code 1
[2021-05-15 02:56:06] [INFO ] Flatten gal took : 2653 ms
[2021-05-15 02:56:07] [INFO ] Input system was already deterministic with 20100 transitions.
[2021-05-15 02:56:07] [INFO ] Transformed 10301 places.
[2021-05-15 02:56:07] [INFO ] Transformed 20100 transitions.
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit/bin//..//greatspn//bin/pinvar, /home/mcc/execution/gspn], workingDir=/home/mcc/execution]
P-invariant computation with GreatSPN timed out. Skipping.
Running greatSPN : CommandLine [args=[/home/mcc/BenchKit/bin//..//greatspn//bin/RGMEDD2, /home/mcc/execution/gspn, -META, -varord-only], workingDir=/home/mcc/execution]
Run of greatSPN captured in /home/mcc/execution/outPut.txt
Using order generated by GreatSPN with heuristic : META
[2021-05-15 02:56:43] [INFO ] Time to serialize gal into /tmp/CTLFireability13338542310356950124.gal : 54 ms
[2021-05-15 02:57:05] [INFO ] Time to serialize properties into /tmp/CTLFireability2463794562986681957.ctl : 22307 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/CTLFireability13338542310356950124.gal, -t, CGAL, -ctl, /tmp/CTLFireability2463794562986681957.ctl, --load-order, /home/mcc/execution/model.ord, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-ctl command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-ctl-linux64 --gc-threshold 2000000 --quiet -i /tmp/CTLFireability13338542310356950124.gal -t CGAL -ctl /tmp/CTLFireability2463794562986681957.ctl --load-order /home/mcc/execution/model.ord --gen-order FOLLOW
Successfully loaded order from file /home/mcc/execution/model.ord
No direction supplied, using forward translation only.
memory exhausted in line 7 with token "("
ITS-tools command line returned an error code 1

BK_STOP 1621047472509

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

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ CTLFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution CTLFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination CTLFireability -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

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="SharedMemory-PT-000100"
export BK_EXAMINATION="CTLFireability"
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 2-4028"
echo " Executing tool itstools"
echo " Input is SharedMemory-PT-000100, 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 r216-tall-162098204600146"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/SharedMemory-PT-000100.tgz
mv SharedMemory-PT-000100 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 ;