Execution Chart

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

Trace from the execution

Formatting '/data/sdalzilio/mcc2026-input.r002-oct2-177944366100238.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=4294967296 backing_file=/data/sdalzilio/mcc2026-input.qcow2 backing_fmt=qcow2 lazy_refcounts=off refcount_bits=16
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-5973
Executing tool itstools
Input is Angiogenesis-PT-10, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r002-oct2-177944366100238
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 480K
-rw-r--r-- 1 mcc users 7.4K Mar 4 18:31 CTLCardinality.txt
-rw-r--r-- 1 mcc users 67K Mar 4 18:31 CTLCardinality.xml
-rw-r--r-- 1 mcc users 5.3K Mar 4 18:31 CTLFireability.txt
-rw-r--r-- 1 mcc users 48K Mar 4 18:31 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Mar 3 18:30 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.5K Mar 3 18:30 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.4K Mar 15 07:05 LTLCardinality.txt
-rw-r--r-- 1 mcc users 29K Mar 15 07:05 LTLCardinality.xml
-rw-r--r-- 1 mcc users 2.1K Mar 15 07:05 LTLFireability.txt
-rw-r--r-- 1 mcc users 17K Mar 15 07:05 LTLFireability.xml
-rw-r--r-- 1 mcc users 12K Mar 4 18:31 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 103K Mar 4 18:31 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 9.2K Mar 4 18:31 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 83K Mar 4 18:31 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Mar 15 07:05 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.8K Mar 15 07:05 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 equiv_col
-rw-r--r-- 1 mcc users 3 Mar 3 18:30 instance
-rw-r--r-- 1 mcc users 6 Mar 3 18:30 iscolored
-rw-r--r-- 1 mcc users 33K Mar 3 18:30 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 Angiogenesis-PT-10-ReachabilityCardinality-2024-00
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-01
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-02
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-03
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-04
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-05
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-06
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-07
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-08
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-09
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-10
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-11
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-12
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-13
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-14
FORMULA_NAME Angiogenesis-PT-10-ReachabilityCardinality-2024-15

=== Now, execution of the tool begins

BK_START 1779467029677

Invoking MCC driver with
BK_TOOL=itstools
BK_EXAMINATION=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=Angiogenesis-PT-10
BK_MEMORY_CONFINEMENT=16384
Not applying reductions.
Model is PT
ReachabilityCardinality PT
Running Version 202604301425
[2026-05-22 16:23:51] [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]
[2026-05-22 16:23:51] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2026-05-22 16:23:51] [INFO ] Load time of PNML (sax parser for PT used): 50 ms
[2026-05-22 16:23:51] [INFO ] Transformed 39 places.
[2026-05-22 16:23:51] [INFO ] Transformed 64 transitions.
[2026-05-22 16:23:51] [INFO ] Parsed PT model containing 39 places and 64 transitions and 185 arcs in 168 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 17 ms.
Working with output stream class java.io.PrintStream
RANDOM walk for 40022 steps (10 resets) in 553 ms. (72 steps per ms) remains 5/16 properties
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-12 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-06 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-04 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-03 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-02 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-00 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
BEST_FIRST walk for 40004 steps (8 resets) in 233 ms. (170 steps per ms) remains 5/5 properties
[2026-05-22 16:23:51] [INFO ] Flatten gal took : 46 ms
[2026-05-22 16:23:51] [INFO ] Flatten gal took : 13 ms
[2026-05-22 16:23:51] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality16721846027378135922.gal : 14 ms
[2026-05-22 16:23:51] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality6453404680866570626.prop : 1 ms
Invoking ITS tools like this :cd /home/mcc/execution;'/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64' '--gc-threshold' '2000000' '--quiet' '-i' '/tmp/ReachabilityCardinality16721846027378135922.gal' '-t' 'CGAL' '-reachable-file' '/tmp/ReachabilityCardinality6453404680866570626.prop' '--nowitness' '--gen-order' 'FOLLOW'
BEST_FIRST walk for 40004 steps (8 resets) in 447 ms. (89 steps per ms) remains 5/5 properties

its-reach command run as :

/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202604301425/bin/its-reach-linux64 --gc-threshold 2000000 --quiet ...329
Loading property file /tmp/ReachabilityCardinality6453404680866570626.prop.
SDD proceeding with computation,5 properties remain. new max is 4
SDD size :1 after 5
SDD proceeding with computation,5 properties remain. new max is 8
SDD size :5 after 10
SDD proceeding with computation,5 properties remain. new max is 16
SDD size :10 after 11
BEST_FIRST walk for 40003 steps (8 resets) in 179 ms. (222 steps per ms) remains 5/5 properties
SDD proceeding with computation,5 properties remain. new max is 32
SDD size :11 after 214
SDD proceeding with computation,5 properties remain. new max is 64
SDD size :214 after 1123
BEST_FIRST walk for 40004 steps (8 resets) in 683 ms. (58 steps per ms) remains 5/5 properties
BEST_FIRST walk for 40004 steps (8 resets) in 179 ms. (222 steps per ms) remains 5/5 properties
SDD proceeding with computation,5 properties remain. new max is 128
SDD size :1123 after 40003
Running PetriSpot : '/home/mcc/BenchKit/itstools/itstools/plugins/fr.lip6.petrispot.binaries_1.0.0.202604301425/bin/petri64' '--loadKERS=/tmp/petrispot-input-1450439460861550870.kers' '--Pflows' '--basisKERS=/tmp/petrispot-output-671262197152390964.kers'
[2026-05-22 16:23:52] [INFO ] Running PetriSpot with arguments : [--loadKERS=/tmp/petrispot-input-1450439460861550870.kers, --Pflows, --basisKERS=/tmp/petrispot-output-671262197152390964.kers]
Culling duplicate invariants (modulo rational): removing 1 columns.
Culled 1 columns in 0 ms.
// Phase 1: matrix 64 rows 38 cols 182 entries
Finished phase 1 with 31 SingleSign rule and 0 generalized
[2026-05-22 16:23:52] [INFO ] Computed 8 invariants in 0 ms
Computed 8 P flows in 0 ms.
Exported basis to /tmp/petrispot-output-671262197152390964.kers
Total runtime 1 ms.
Problem Angiogenesis-PT-10-ReachabilityCardinality-2024-01 is UNSAT
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-01 TRUE TECHNIQUES SMT_REFINEMENT
Problem Angiogenesis-PT-10-ReachabilityCardinality-2024-08 is UNSAT
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-08 TRUE TECHNIQUES SMT_REFINEMENT
Problem Angiogenesis-PT-10-ReachabilityCardinality-2024-09 is UNSAT
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-09 FALSE TECHNIQUES SMT_REFINEMENT
All remaining problems are real, not stopping.
At refinement iteration 0 (INCLUDED_ONLY) 0/38 variables, 5/5 constraints. Problems are: Problem set: 3 solved, 2 unsolved
At refinement iteration 1 (INCLUDED_ONLY) 0/38 variables, 0/5 constraints. Problems are: Problem set: 3 solved, 2 unsolved
Problem Angiogenesis-PT-10-ReachabilityCardinality-2024-05 is UNSAT
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-05 TRUE TECHNIQUES SMT_REFINEMENT
At refinement iteration 2 (OVERLAPS) 1/39 variables, 3/8 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 3 (INCLUDED_ONLY) 0/39 variables, 0/8 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 4 (OVERLAPS) 64/103 variables, 39/47 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 5 (INCLUDED_ONLY) 0/103 variables, 0/47 constraints. Problems are: Problem set: 4 solved, 1 unsolved
SDD proceeding with computation,5 properties remain. new max is 256
At refinement iteration 6 (OVERLAPS) 0/103 variables, 0/47 constraints. Problems are: Problem set: 4 solved, 1 unsolved
No progress, stopping.
SDD size :40003 after 1.03694e+06
After SMT solving in domain Real declared 103/103 variables, and 47 constraints, problems are : Problem set: 4 solved, 1 unsolved in 190 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 39/39 constraints, PredecessorRefiner: 5/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
Escalating to Integer solving :Problem set: 4 solved, 1 unsolved
At refinement iteration 0 (INCLUDED_ONLY) 0/9 variables, 0/0 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 1 (OVERLAPS) 27/36 variables, 6/6 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 2 (INCLUDED_ONLY) 0/36 variables, 0/6 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 3 (OVERLAPS) 3/39 variables, 2/8 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 4 (INCLUDED_ONLY) 0/39 variables, 0/8 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 5 (OVERLAPS) 64/103 variables, 39/47 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 6 (INCLUDED_ONLY) 0/103 variables, 1/48 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 7 (INCLUDED_ONLY) 0/103 variables, 0/48 constraints. Problems are: Problem set: 4 solved, 1 unsolved
At refinement iteration 8 (OVERLAPS) 0/103 variables, 0/48 constraints. Problems are: Problem set: 4 solved, 1 unsolved
No progress, stopping.
After SMT solving in domain Int declared 103/103 variables, and 48 constraints, problems are : Problem set: 4 solved, 1 unsolved in 111 ms.
Refiners :[Positive P Invariants (semi-flows): 8/8 constraints, State Equation: 39/39 constraints, PredecessorRefiner: 1/5 constraints, Known Traps: 0/0 constraints, Known Traps Along Path: 0/0 constraints]
After SMT, in 380ms problems are : Problem set: 4 solved, 1 unsolved
Parikh walk visited 0 properties in 22 ms.
Support contains 9 out of 39 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 39/39 places, 64/64 transitions.
Graph (complete) has 117 edges and 39 vertex of which 38 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Performed 3 Post agglomeration using F-continuation condition.Transition count delta: 3
Deduced a syphon composed of 3 places in 0 ms
Reduce places removed 3 places and 0 transitions.
Iterating global reduction 0 with 6 rules applied. Total rules applied 7 place count 35 transition count 61
Drop transitions (Empty/Sink Transition effects.) removed 3 transitions
Reduce isomorphic transitions removed 3 transitions.
Graph (complete) has 107 edges and 35 vertex of which 34 are kept as prefixes of interest. Removing 1 places using SCC suffix rule.0 ms
Discarding 1 places :
Also discarding 0 output transitions
Iterating post reduction 0 with 4 rules applied. Total rules applied 11 place count 34 transition count 58
Drop transitions (Empty/Sink Transition effects.) removed 1 transitions
Reduce isomorphic transitions removed 1 transitions.
Iterating post reduction 1 with 1 rules applied. Total rules applied 12 place count 34 transition count 57
Free-agglomeration rule applied 2 times.
Iterating global reduction 2 with 2 rules applied. Total rules applied 14 place count 34 transition count 55
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 2 with 2 rules applied. Total rules applied 16 place count 32 transition count 55
Free-agglomeration rule (complex) applied 2 times.
Iterating global reduction 3 with 2 rules applied. Total rules applied 18 place count 32 transition count 53
Reduce places removed 2 places and 0 transitions.
Drop transitions (Empty/Sink Transition effects.) removed 2 transitions
Reduce isomorphic transitions removed 2 transitions.
Iterating post reduction 3 with 4 rules applied. Total rules applied 22 place count 30 transition count 51
Free-agglomeration rule applied 2 times.
Iterating global reduction 4 with 2 rules applied. Total rules applied 24 place count 30 transition count 49
Reduce places removed 2 places and 0 transitions.
Iterating post reduction 4 with 2 rules applied. Total rules applied 26 place count 28 transition count 49
Partial Free-agglomeration rule applied 1 times.
Drop transitions (Partial Free agglomeration) removed 1 transitions
Iterating global reduction 5 with 1 rules applied. Total rules applied 27 place count 28 transition count 49
Partial Post-agglomeration rule applied 2 times.
Drop transitions (Partial Post agglomeration) removed 2 transitions
Iterating global reduction 5 with 2 rules applied. Total rules applied 29 place count 28 transition count 49
Applied a total of 29 rules in 42 ms. Remains 28 /39 variables (removed 11) and now considering 49/64 (removed 15) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 48 ms. Remains : 28/39 places, 49/64 transitions.
RANDOM walk for 40015 steps (8 resets) in 192 ms. (207 steps per ms) remains 1/1 properties
BEST_FIRST walk for 40004 steps (8 resets) in 102 ms. (388 steps per ms) remains 1/1 properties
Invariant property Angiogenesis-PT-10-ReachabilityCardinality-2024-14 does not hold.
FORMULA Angiogenesis-PT-10-ReachabilityCardinality-2024-14 FALSE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
SDD proceeding with computation,4 properties remain. new max is 256
SDD size :1.03694e+06 after 6.19407e+06
Finished probabilistic random walk after 1784914 steps, run visited all 1 properties in 2603 ms. (steps per millisecond=685 )
Probabilistic random walk after 1784914 steps, saw 1117427 distinct states, run finished after 2611 ms. (steps per millisecond=683 ) properties seen :1
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 4200 ms.

BK_STOP 1779467035298

--------------------
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
++ ls /home/mcc/BenchKit/bin//../itstools/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202604301425.jar
++ perl -pe 's/.*\.//g'
++ sed s/.jar//
+ VERSION=202604301425
+ echo 'Running Version 202604301425'
+ /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="Angiogenesis-PT-10"
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 2-5973"
echo " Executing tool itstools"
echo " Input is Angiogenesis-PT-10, 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 r002-oct2-177944366100238"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/Angiogenesis-PT-10.tgz
mv Angiogenesis-PT-10 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 ;