fond
Model Checking Contest 2025
15th edition, Paris, France, June 24, 2025
Execution of r114-tall-174876422600390
Last Updated
June 24, 2025

About the Execution of ITS-Tools for IOTPpurchase-PT-C12M10P15D17

Execution Summary
Max Memory
Used (MB)
Time wait (ms) CPU Usage (ms) I/O Wait (ms) Computed Result Execution
Status
0.000 4389.00 0.00 0.00 FFTFFFFFTTFFFTTT normal

Execution Chart

Sorry, for this execution, no execution chart could be reported.

Trace from the execution

Formatting '/data/fkordon/mcc2025-input.r114-tall-174876422600390.qcow2', fmt=qcow2 size=4294967296 backing_file=/data/fkordon/mcc2025-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 2-5832
Executing tool itstools
Input is IOTPpurchase-PT-C12M10P15D17, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r114-tall-174876422600390
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 524K
-rw-r--r-- 1 mcc users 7.6K May 29 14:47 CTLCardinality.txt
-rw-r--r-- 1 mcc users 71K May 29 14:47 CTLCardinality.xml
-rw-r--r-- 1 mcc users 7.4K May 29 14:47 CTLFireability.txt
-rw-r--r-- 1 mcc users 53K May 29 14:47 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 29 14:32 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.8K May 29 14:32 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.7K May 29 14:47 LTLCardinality.txt
-rw-r--r-- 1 mcc users 30K May 29 14:47 LTLCardinality.xml
-rw-r--r-- 1 mcc users 3.0K May 29 14:47 LTLFireability.txt
-rw-r--r-- 1 mcc users 18K May 29 14:47 LTLFireability.xml
-rw-r--r-- 1 mcc users 16K May 29 14:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 143K May 29 14:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 8.3K May 29 14:47 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 47K May 29 14:47 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.9K May 29 14:47 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.9K May 29 14:47 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 29 14:32 equiv_col
-rw-r--r-- 1 mcc users 13 May 29 14:32 instance
-rw-r--r-- 1 mcc users 6 May 29 14:32 iscolored
-rwxr-xr-x 1 mcc users 60K May 29 14:32 model.pnml

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

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

The expected result is a vector of booleans
BOOL_VECTOR

echo here is the order used to build the result vector(from xml file)
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-00
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-01
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-02
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-03
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-04
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-05
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-06
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-07
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-08
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-09
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-10
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-11
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-12
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-13
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-14
FORMULA_NAME IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-15

=== Now, execution of the tool begins

BK_START 1748836661440

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=IOTPpurchase-PT-C12M10P15D17
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202505121319
[2025-06-02 03:57:42] [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]
[2025-06-02 03:57:42] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2025-06-02 03:57:43] [INFO ] Load time of PNML (sax parser for PT used): 62 ms
[2025-06-02 03:57:43] [INFO ] Transformed 111 places.
[2025-06-02 03:57:43] [INFO ] Transformed 45 transitions.
[2025-06-02 03:57:43] [INFO ] Parsed PT model containing 111 places and 45 transitions and 224 arcs in 174 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 21 ms.
Working with output stream class java.io.PrintStream
[2025-06-02 03:57:43] [INFO ] Flatten gal took : 49 ms
[2025-06-02 03:57:43] [INFO ] Flatten gal took : 47 ms
[2025-06-02 03:57:43] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality7729002455361680593.gal : 25 ms
[2025-06-02 03:57:43] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality10340216751537786822.prop : 9 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality7729002455361680593.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality10340216751537786822.prop' '--nowitness' '--gen-order' 'FOLLOW'

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202505121319/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality10340216751537786822.prop.
SDD proceeding with computation,16 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,16 properties remain. new max is 8
SDD size :3 after 8
SDD proceeding with computation,16 properties remain. new max is 16
SDD size :8 after 16
SDD proceeding with computation,16 properties remain. new max is 32
SDD size :16 after 48
RANDOM walk for 40000 steps (8 resets) in 2486 ms. (16 steps per ms) remains 10/16 properties
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-10 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-05 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
SDD proceeding with computation,16 properties remain. new max is 64
SDD size :48 after 143
SDD proceeding with computation,16 properties remain. new max is 128
SDD size :143 after 621
SDD proceeding with computation,16 properties remain. new max is 256
SDD size :621 after 741
SDD proceeding with computation,16 properties remain. new max is 512
SDD size :741 after 1761
BEST_FIRST walk for 40003 steps (8 resets) in 743 ms. (53 steps per ms) remains 10/10 properties
SDD proceeding with computation,16 properties remain. new max is 1024
SDD size :1761 after 9401
BEST_FIRST walk for 40002 steps (8 resets) in 197 ms. (202 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40003 steps (8 resets) in 266 ms. (149 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (8 resets) in 365 ms. (109 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (8 resets) in 186 ms. (213 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40002 steps (8 resets) in 245 ms. (162 steps per ms) remains 10/10 properties
BEST_FIRST walk for 40004 steps (8 resets) in 347 ms. (114 steps per ms) remains 9/10 properties
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-12 FALSE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 239 ms. (166 steps per ms) remains 9/9 properties
SDD proceeding with computation,16 properties remain. new max is 2048
SDD size :9401 after 61672
BEST_FIRST walk for 40004 steps (8 resets) in 217 ms. (183 steps per ms) remains 9/9 properties
BEST_FIRST walk for 40004 steps (8 resets) in 218 ms. (182 steps per ms) remains 8/9 properties
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-15 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
// Phase 1: matrix 45 rows 111 cols
[2025-06-02 03:57:44] [INFO ] Computed 67 invariants in 10 ms
[2025-06-02 03:57:44] [INFO ] State equation strengthened by 1 read => feed constraints.
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-01 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-01 FALSE TECHNIQUES SMT_REFINEMENT
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-08 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-08 TRUE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/95 variables, 4/4 constraints. Problems are: Problem set: 2 solved, 6 unsolved
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-02 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-02 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 1 (INCLUDED_ONLY) 0/95 variables, 34/38 constraints. Problems are: Problem set: 3 solved, 5 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/95 variables, 0/38 constraints. Problems are: Problem set: 3 solved, 5 unsolved
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-04 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-04 FALSE TECHNIQUES SMT_REFINEMENT
At refinement iteration 3 (OVERLAPS) 4/99 variables, 4/42 constraints. Problems are: Problem set: 4 solved, 4 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/99 variables, 3/45 constraints. Problems are: Problem set: 4 solved, 4 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/99 variables, 0/45 constraints. Problems are: Problem set: 4 solved, 4 unsolved
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-07 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-07 FALSE TECHNIQUES SMT_REFINEMENT
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-13 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-13 TRUE TECHNIQUES SMT_REFINEMENT
Problem IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-14 is UNSAT
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-14 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 6 (OVERLAPS) 11/110 variables, 21/66 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/110 variables, 0/66 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 1/111 variables, 1/67 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 9 (INCLUDED_ONLY) 0/111 variables, 0/67 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 10 (OVERLAPS) 45/156 variables, 111/178 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/156 variables, 1/179 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/156 variables, 0/179 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/156 variables, 0/179 constraints. Problems are: Problem set: 7 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Real declared 156/156 variables, and 179 constraints, problems are : Problem set: 7 solved, 1 unsolved in 549 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 111/111 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 8/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 7 solved, 1 unsolved
Starting Z3 with timeout 5.0 s and query timeout 500.0 ms
At refinement iteration 0 (INCLUDED_ONLY) 0/18 variables, 0/0 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 11/29 variables, 6/6 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/29 variables, 0/6 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 62/91 variables, 41/47 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/91 variables, 0/47 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 2/93 variables, 2/49 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/93 variables, 0/49 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 7 (OVERLAPS) 18/111 variables, 18/67 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 8 (INCLUDED_ONLY) 0/111 variables, 0/67 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 9 (OVERLAPS) 45/156 variables, 111/178 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 10 (INCLUDED_ONLY) 0/156 variables, 1/179 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 11 (INCLUDED_ONLY) 0/156 variables, 1/180 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 12 (INCLUDED_ONLY) 0/156 variables, 0/180 constraints. Problems are: Problem set: 7 solved, 1 unsolved
At refinement iteration 13 (OVERLAPS) 0/156 variables, 0/180 constraints. Problems are: Problem set: 7 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 156/156 variables, and 180 constraints, problems are : Problem set: 7 solved, 1 unsolved in 215 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, Generalized P Invariants (flows): 59/59 constraints, State Equation: 111/111 constraints, ReadFeed: 1/1 constraints, PredecessorRefiner: 1/8 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 852ms problems are : Problem set: 7 solved, 1 unsolved
Finished Parikh walk after 503 steps, including 0 resets, run visited all 1 properties in 4 ms. (steps per millisecond=125 )
FORMULA IOTPpurchase-PT-C12M10P15D17-ReachabilityCardinality-2025-03 FALSE TECHNIQUES PARIKH_WALK
Parikh walk visited 1 properties in 9 ms.
ITS runner timed out or was interrupted.
ITS tools runner thread asked to quit. Dying gracefully.
All properties solved without resorting to model-checking.
Total runtime 2808 ms.

BK_STOP 1748836665829

--------------------
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
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202505121319.jar
+ VERSION=202505121319
+ echo 'Running Version 202505121319'
+ /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="IOTPpurchase-PT-C12M10P15D17"
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 2-5832"
echo " Executing tool itstools"
echo " Input is IOTPpurchase-PT-C12M10P15D17, 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 r114-tall-174876422600390"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/IOTPpurchase-PT-C12M10P15D17.tgz
mv IOTPpurchase-PT-C12M10P15D17 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.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 ;