Execution Chart

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

Trace from the execution

Waiting for the VM to be ready (probing ssh)
.....................................................................
=====================================================================
Generated by BenchKit 2-2979
Executing tool lola
Input is SwimmingPool-PT-01, examination is ReachabilityCardinality
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r122kn-qhx2-146373368100367
=====================================================================

--------------------
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 SwimmingPool-PT-01-ReachabilityCardinality-0
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-1
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-10
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-11
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-12
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-13
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-14
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-15
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-2
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-3
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-4
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-5
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-6
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-7
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-8
FORMULA_NAME SwimmingPool-PT-01-ReachabilityCardinality-9

=== Now, execution of the tool begins

BK_START 1465322026438

bkconf 3600
make: Nothing to be done for 'prepare'.
in benchkit_head lolaszeit 3539
ReachabilityCardinality @ SwimmingPool-PT-01
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-0 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-1 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-2 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-3 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-4 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-5 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-6 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-7 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-8 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-9 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-10 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-11 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-12 TRUE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-13 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-14 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
FORMULA SwimmingPool-PT-01-ReachabilityCardinality-15 FALSE TECHNIQUES PARALLEL_PROCESSING EXPLICIT SAT_SMT STATE_COMPRESSION STUBBORN_SETS TOPOLOGICAL
lola: LoLA will run for 3539 seconds at most (--timelimit)
lola: NET
lola: reading net from model.pnml.lola
lola: finished parsing
lola: closed net file model.pnml.lola
lola: 16/65536 symbol table entries, 0 collisions
lola: preprocessing...
lola: finding significant places
lola: 9 places, 7 transitions, 6 significant places
lola: computing forward-conflicting sets
lola: computing back-conflicting sets
lola: 9 transition conflict sets
lola: TASK
lola: reading formula from SwimmingPool-PT-01-ReachabilityCardinality.task
lola: read: AG ((!(Dress <= Dress) OR ((Entered <= InBath OR WaitBag <= Bags) OR (Dress <= InBath AND 1 <= InBath)))) : AG (Cabins <= Bags) : AG (!(!((2 <= Cabins OR Dressed <= InBath)))) : AG (!(((Entered <= Dressed AND 1 <= Bags) AND !(2 <= Bags)))) : AG (1 <= Bags) : AG (Dressed <= Out) : EF (!(((Entered <= Undress OR 3 <= Dress) OR (InBath <= Bags OR WaitBag <= Dress)))) : EF (Bags <= InBath) : EF (!(((In... (shortened)
lola: formula length: 910
lola: computing a collection of formulas
lola: RUNNING
lola: subprocess 0 will run for 221 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG ((Entered + -InBath <= 0 OR (-Bags + WaitBag <= 0 OR (Dress + -InBath <= 0 AND -InBath <= -1))))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: The predicate is invariant.
lola: ========================================
lola: subprocess 1 will run for 235 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG (-Bags + Cabins <= 0)
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 2 will run for 252 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG ((-Cabins <= -2 OR Dressed + -InBath <= 0))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 2 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-2.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 3 will run for 272 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG ((-Dressed + Entered > 0 OR (-Bags > -1 OR -Bags <= -2)))
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 3 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-3.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 4 will run for 294 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG (-Bags <= -1)
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-4.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 5 will run for 321 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG (Dressed + -Out <= 0)
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 6 will run for 353 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF ((Entered + -Undress > 0 AND (-Dress > -3 AND (-Bags + InBath > 0 AND WaitBag + -Dress > 0))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 4 literals
lola: SUBRESULT
lola: result: yes
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 7 will run for 393 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF (Bags + -InBath <= 0)
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-7.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: yes
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 8 will run for 442 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF ((InBath + -Undress > 0 AND (-Bags + Entered > 0 AND Out + -WaitBag <= 0)))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 3 literals
lola: SUBRESULT
lola: result: yes
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 9 will run for 505 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF ((-WaitBag + InBath > 0 AND (-Dressed > -2 AND ((Bags + -Dress <= 0 OR -Dressed + Bags <= 0) AND -Undress <= -3))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 8 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-9.sara
lola: SUBRESULT
lola: result: yes
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 10 will run for 589 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF ((-Bags > -3 AND (Dress + -Undress > 0 AND (-Out + WaitBag > 0 OR -Cabins > -3))))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 6 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-10.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: yes
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 11 will run for 707 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: TRUE
lola: ========================================
lola: SUBTASK
lola: checking initial satisfaction
lola: processed formula with 0 atomic propositions
lola: closed formula file SwimmingPool-PT-01-ReachabilityCardinality.task
lola: RUNNING
lola: SUBRESULT
lola: result: yes
lola: The net satisfies the property already in its initial state.
lola: ========================================
lola: subprocess 12 will run for 884 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF (Out + -Undress <= 0)
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-12.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: yes
lola: The predicate is reachable.
lola: ========================================
lola: subprocess 13 will run for 1179 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: EF ((-Entered <= -1 AND (-Entered > -1 AND -Cabins + Undress > 0)))
lola: ========================================
lola: SUBTASK
lola: checking reachability
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: SUBRESULT
lola: result: no
lola: The predicate is unreachable.
lola: ========================================
lola: subprocess 14 will run for 1768 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG (-Bags <= -3)
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: subprocess 15 will run for 3537 seconds at most (--localtimelimit=0)
lola: ========================================
lola: ...considering subproblem: AG (Out + -WaitBag > 0)
lola: ========================================
lola: SUBTASK
lola: checking invariance
lola: Planning: workflow for reachability check: stateequation||search (--findpath=off)
lola: STORE
lola: using a bit-perfect encoder (--encoder=bit)
lola: using 24 bytes per marking, with 0 unused bits
lola: using a prefix tree store (--store=prefix)
lola: SEARCH
lola: using reachability graph (--search=depth)
lola: using reachability preserving stubborn set method with insertion algorithm (--stubborn=tarjan)
lola: RUNNING
lola: Transformation into DNF: expect 1 literals
lola: write sara problem file to SwimmingPool-PT-01-ReachabilityCardinality-15.sara
lola: calling and running sara
lola: SUBRESULT
lola: result: no
lola: The predicate is not invariant.
lola: ========================================
lola: RESULT
lola: summary: yes no no no no no yes yes yes yes yes yes yes no no no

BK_STOP 1465322031108

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

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="SwimmingPool-PT-01"
export BK_EXAMINATION="ReachabilityCardinality"
export BK_TOOL="lola"
export BK_RESULT_DIR="/home/fko/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"

# 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

tar xzf /home/mcc/BenchKit/INPUTS/SwimmingPool-PT-01.tgz
mv SwimmingPool-PT-01 execution

# this is for BenchKit: explicit launching of the test

cd execution
echo "====================================================================="
echo " Generated by BenchKit 2-2979"
echo " Executing tool lola"
echo " Input is SwimmingPool-PT-01, 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 r122kn-qhx2-146373368100367"
echo "====================================================================="
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
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 ;