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.r135-smll-167819415000654.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 EGFr-PT-10420, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r135-smll-167819415000654
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 1.2M
-rw-r--r-- 1 mcc users 6.7K Feb 25 20:08 CTLCardinality.txt
-rw-r--r-- 1 mcc users 58K Feb 25 20:08 CTLCardinality.xml
-rw-r--r-- 1 mcc users 20K Feb 25 19:50 CTLFireability.txt
-rw-r--r-- 1 mcc users 76K Feb 25 19:50 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K Jan 29 11:40 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.4K Jan 29 11:40 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 4.3K Feb 25 16:02 LTLCardinality.txt
-rw-r--r-- 1 mcc users 26K Feb 25 16:02 LTLCardinality.xml
-rw-r--r-- 1 mcc users 6.1K Feb 25 16:02 LTLFireability.txt
-rw-r--r-- 1 mcc users 21K Feb 25 16:02 LTLFireability.xml
-rw-r--r-- 1 mcc users 11K Feb 25 20:37 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 82K Feb 25 20:37 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 31K Feb 25 20:28 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 99K Feb 25 20:28 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.7K Feb 25 16:02 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.7K Feb 25 16:02 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 equiv_col
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 instance
-rw-r--r-- 1 mcc users 6 Mar 5 18:22 iscolored
-rw-r--r-- 1 mcc users 681K 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 EGFr-PT-10420-ReachabilityCardinality-00
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-01
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-02
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-03
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-04
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-05
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-06
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-07
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-08
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-09
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-10
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-11
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-12
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-13
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-14
FORMULA_NAME EGFr-PT-10420-ReachabilityCardinality-15

=== Now, execution of the tool begins

BK_START 1678441943500

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=ReachabilityCardinality
BK_BIN_PATH=/home/mcc/BenchKit/bin/
BK_TIME_CONFINEMENT=3600
BK_INPUT=EGFr-PT-10420
Applying reductions before tool lola
Invoking reducer
Running Version 202303021504
[2023-03-10 09:52:26] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityCardinality, -timeout, 360, -rebuildPNML]
[2023-03-10 09:52:26] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2023-03-10 09:52:27] [INFO ] Load time of PNML (sax parser for PT used): 162 ms
[2023-03-10 09:52:27] [INFO ] Transformed 208 places.
[2023-03-10 09:52:27] [INFO ] Transformed 378 transitions.
[2023-03-10 09:52:27] [INFO ] Found NUPN structural information;
[2023-03-10 09:52:27] [INFO ] Parsed PT model containing 208 places and 378 transitions and 3198 arcs in 291 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityCardinality.xml in 17 ms.
Working with output stream class java.io.PrintStream
Deduced a syphon composed of 49 places in 3 ms
Reduce places removed 77 places and 239 transitions.
Reduce places removed 21 places and 0 transitions.
FORMULA EGFr-PT-10420-ReachabilityCardinality-01 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-02 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-03 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-04 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-05 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-08 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-12 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-13 TRUE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-14 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
FORMULA EGFr-PT-10420-ReachabilityCardinality-15 FALSE TECHNIQUES TOPOLOGICAL INITIAL_STATE
Incomplete random walk after 10000 steps, including 2 resets, run finished after 283 ms. (steps per millisecond=35 ) properties (out of 6) seen :5
FORMULA EGFr-PT-10420-ReachabilityCardinality-11 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA EGFr-PT-10420-ReachabilityCardinality-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA EGFr-PT-10420-ReachabilityCardinality-07 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA EGFr-PT-10420-ReachabilityCardinality-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA EGFr-PT-10420-ReachabilityCardinality-00 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 45 ms. (steps per millisecond=222 ) properties (out of 1) seen :0
Running SMT prover for 1 properties.
[2023-03-10 09:52:27] [INFO ] Flow matrix only has 106 transitions (discarded 33 similar events)
// Phase 1: matrix 106 rows 110 cols
[2023-03-10 09:52:27] [INFO ] Computed 55 place invariants in 14 ms
[2023-03-10 09:52:27] [INFO ] After 342ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 09:52:28] [INFO ] [Nat]Absence check using 55 positive place invariants in 21 ms returned sat
[2023-03-10 09:52:28] [INFO ] After 68ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-10 09:52:28] [INFO ] State equation strengthened by 51 read => feed constraints.
[2023-03-10 09:52:28] [INFO ] After 15ms SMT Verify possible using 51 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-10 09:52:28] [INFO ] After 39ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 15 ms.
[2023-03-10 09:52:28] [INFO ] After 246ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 2 ms.
Support contains 2 out of 110 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 110/110 places, 139/139 transitions.
Graph (complete) has 278 edges and 110 vertex of which 50 are kept as prefixes of interest. Removing 60 places using SCC suffix rule.1 ms
Discarding 60 places :
Also discarding 34 output transitions
Drop transitions removed 34 transitions
Drop transitions removed 37 transitions
Reduce isomorphic transitions removed 37 transitions.
Iterating post reduction 0 with 37 rules applied. Total rules applied 38 place count 50 transition count 68
Discarding 1 places :
Symmetric choice reduction at 1 with 1 rule applications. Total rules 39 place count 49 transition count 66
Iterating global reduction 1 with 1 rules applied. Total rules applied 40 place count 49 transition count 66
Applied a total of 40 rules in 27 ms. Remains 49 /110 variables (removed 61) and now considering 66/139 (removed 73) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 27 ms. Remains : 49/110 places, 66/139 transitions.
Incomplete random walk after 10000 steps, including 2 resets, run finished after 53 ms. (steps per millisecond=188 ) properties (out of 1) seen :0
Incomplete Best-First random walk after 10001 steps, including 2 resets, run finished after 25 ms. (steps per millisecond=400 ) properties (out of 1) seen :0
Interrupted probabilistic random walk after 1922844 steps, run timeout after 3001 ms. (steps per millisecond=640 ) properties seen :{}
Probabilistic random walk after 1922844 steps, saw 282496 distinct states, run finished after 3003 ms. (steps per millisecond=640 ) properties seen :0
Running SMT prover for 1 properties.
[2023-03-10 09:52:31] [INFO ] Flow matrix only has 47 transitions (discarded 19 similar events)
// Phase 1: matrix 47 rows 49 cols
[2023-03-10 09:52:31] [INFO ] Computed 24 place invariants in 1 ms
[2023-03-10 09:52:31] [INFO ] After 49ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 09:52:31] [INFO ] [Nat]Absence check using 24 positive place invariants in 15 ms returned sat
[2023-03-10 09:52:31] [INFO ] After 47ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-10 09:52:31] [INFO ] State equation strengthened by 22 read => feed constraints.
[2023-03-10 09:52:31] [INFO ] After 12ms SMT Verify possible using 22 Read/Feed constraints in natural domain returned unsat :0 sat :1
[2023-03-10 09:52:31] [INFO ] After 24ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 7 ms.
[2023-03-10 09:52:31] [INFO ] After 157ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
Parikh walk visited 0 properties in 0 ms.
Support contains 2 out of 49 places. Attempting structural reductions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 49/49 places, 66/66 transitions.
Applied a total of 0 rules in 6 ms. Remains 49 /49 variables (removed 0) and now considering 66/66 (removed 0) transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 6 ms. Remains : 49/49 places, 66/66 transitions.
Starting structural reductions in REACHABILITY mode, iteration 0 : 49/49 places, 66/66 transitions.
Applied a total of 0 rules in 6 ms. Remains 49 /49 variables (removed 0) and now considering 66/66 (removed 0) transitions.
[2023-03-10 09:52:31] [INFO ] Flow matrix only has 47 transitions (discarded 19 similar events)
[2023-03-10 09:52:31] [INFO ] Invariant cache hit.
[2023-03-10 09:52:31] [INFO ] Implicit Places using invariants in 163 ms returned []
[2023-03-10 09:52:31] [INFO ] Flow matrix only has 47 transitions (discarded 19 similar events)
[2023-03-10 09:52:31] [INFO ] Invariant cache hit.
[2023-03-10 09:52:31] [INFO ] State equation strengthened by 22 read => feed constraints.
[2023-03-10 09:52:31] [INFO ] Implicit Places using invariants and state equation in 179 ms returned []
Implicit Place search using SMT with State Equation took 345 ms to find 0 implicit places.
[2023-03-10 09:52:31] [INFO ] Redundant transitions in 2 ms returned []
[2023-03-10 09:52:31] [INFO ] Flow matrix only has 47 transitions (discarded 19 similar events)
[2023-03-10 09:52:31] [INFO ] Invariant cache hit.
[2023-03-10 09:52:32] [INFO ] Dead Transitions using invariants and state equation in 112 ms found 0 transitions.
Finished structural reductions in REACHABILITY mode , in 1 iterations and 473 ms. Remains : 49/49 places, 66/66 transitions.
Graph (trivial) has 59 edges and 49 vertex of which 40 / 49 are part of one of the 20 SCC in 4 ms
Free SCC test removed 20 places
Drop transitions removed 56 transitions
Ensure Unique test removed 3 transitions
Reduce isomorphic transitions removed 59 transitions.
Graph (complete) has 7 edges and 29 vertex of which 4 are kept as prefixes of interest. Removing 25 places using SCC suffix rule.0 ms
Discarding 25 places :
Also discarding 3 output transitions
Drop transitions removed 3 transitions
Applied a total of 2 rules in 8 ms. Remains 4 /49 variables (removed 45) and now considering 4/66 (removed 62) transitions.
Running SMT prover for 1 properties.
// Phase 1: matrix 4 rows 4 cols
[2023-03-10 09:52:32] [INFO ] Computed 2 place invariants in 1 ms
[2023-03-10 09:52:32] [INFO ] After 24ms SMT Verify possible using all constraints in real domain returned unsat :0 sat :0 real:1
[2023-03-10 09:52:32] [INFO ] [Nat]Absence check using 2 positive place invariants in 1 ms returned sat
[2023-03-10 09:52:32] [INFO ] After 8ms SMT Verify possible using state equation in natural domain returned unsat :0 sat :1
[2023-03-10 09:52:32] [INFO ] After 12ms SMT Verify possible using trap constraints in natural domain returned unsat :0 sat :1
Attempting to minimize the solution found.
Minimization took 5 ms.
[2023-03-10 09:52:32] [INFO ] After 63ms SMT Verify possible using all constraints in natural domain returned unsat :0 sat :1
[2023-03-10 09:52:32] [INFO ] Export to MCC of 1 properties in file /home/mcc/execution/ReachabilityCardinality.sr.xml took 3 ms.
[2023-03-10 09:52:32] [INFO ] Export to PNML in file /home/mcc/execution/model.sr.pnml of net with 49 places, 66 transitions and 314 arcs took 3 ms.
[2023-03-10 09:52:32] [INFO ] Flatten gal took : 74 ms
Total runtime 5700 ms.
There are residual formulas that ITS could not solve within timeout
starting LoLA
BK_INPUT EGFr-PT-10420
BK_EXAMINATION: ReachabilityCardinality
bin directory: /home/mcc/BenchKit/bin//../reducer/bin//../../lola/bin/
current directory: /home/mcc/execution/372
ReachabilityCardinality

FORMULA EGFr-PT-10420-ReachabilityCardinality-10 FALSE TECHNIQUES COLLATERAL_PROCESSING EXPLICIT TOPOLOGICAL STATE_COMPRESSION STUBBORN_SETS USE_NUPN UNFOLDING_TO_PT

BK_STOP 1678441953700

--------------------
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:
++ sed s/.jar//
++ perl -pe 's/.*\.//g'
++ 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 ReachabilityCardinality -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/372/model.pnml
lola: reading pnml
lola: PNML file contains place/transition net
lola: finished parsing
lola: closed net file /home/mcc/execution/372/model.pnml
lola: Reading formula.
lola: Using XML format (--xmlformula)
lola: reading XML formula
lola: reading formula from /home/mcc/execution/372/ReachabilityCardinality.xml
lola: Rule S: 0 transitions removed,0 places removed
lola: Created skeleton in 0.000000 secs.
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 8 (type EXCL) for 0 EGFr-PT-10420-ReachabilityCardinality-10
lola: time limit : 3600 sec
lola: memory limit: 32 pages
lola: LAUNCH task # 4 (type FNDP) for 0 EGFr-PT-10420-ReachabilityCardinality-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: LAUNCH task # 5 (type EQUN) for 0 EGFr-PT-10420-ReachabilityCardinality-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: rewrite Frontend/Parser/formula_rewrite.k:721
lola: rewrite Frontend/Parser/formula_rewrite.k:787
lola: LAUNCH task # 7 (type SRCH) for 0 EGFr-PT-10420-ReachabilityCardinality-10
lola: time limit : 32000000 sec
lola: memory limit: 5 pages
lola: FINISHED task # 4 (type FNDP) for EGFr-PT-10420-ReachabilityCardinality-10
lola: result : true
lola: fired transitions : 88
lola: tried executions : 11
lola: time used : 0.000000
lola: memory pages used : 0
lola: CANCELED task # 5 (type EQUN) for EGFr-PT-10420-ReachabilityCardinality-10 (obsolete)
lola: CANCELED task # 7 (type SRCH) for EGFr-PT-10420-ReachabilityCardinality-10 (obsolete)
lola: CANCELED task # 8 (type EXCL) for EGFr-PT-10420-ReachabilityCardinality-10 (obsolete)
lola: Portfolio finished: no open formulas

FINAL RESULTS
FINISHED FORMULA: CATEGORY VALUE PRODUCED BY
EGFr-PT-10420-ReachabilityCardinality-10: AG false findpath


Time elapsed: 0 secs. Pages in use: 2

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="EGFr-PT-10420"
export BK_EXAMINATION="ReachabilityCardinality"
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 EGFr-PT-10420, 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 r135-smll-167819415000654"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/EGFr-PT-10420.tgz
mv EGFr-PT-10420 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 ;