/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Problem 1: (VAR v_NonEmpty:S l:S l1:S l2:S x:S y:S z:S) (RULES *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ) Problem 1: Dependency Pairs Processor: -> Pairs: *#(*(x:S,y:S),z:S) -> *#(x:S,*(y:S,z:S)) *#(*(x:S,y:S),z:S) -> *#(y:S,z:S) *#(s(x:S),s(y:S)) -> *#(x:S,y:S) *#(s(x:S),s(y:S)) -> +#(*(x:S,y:S),+(x:S,y:S)) *#(s(x:S),s(y:S)) -> +#(x:S,y:S) +#(+(x:S,y:S),z:S) -> +#(x:S,+(y:S,z:S)) +#(+(x:S,y:S),z:S) -> +#(y:S,z:S) +#(s(x:S),s(y:S)) -> +#(x:S,y:S) APP(cons(x:S,l1:S),l2:S) -> APP(l1:S,l2:S) PROD(app(l1:S,l2:S)) -> *#(prod(l1:S),prod(l2:S)) PROD(app(l1:S,l2:S)) -> PROD(l1:S) PROD(app(l1:S,l2:S)) -> PROD(l2:S) PROD(cons(x:S,l:S)) -> *#(x:S,prod(l:S)) PROD(cons(x:S,l:S)) -> PROD(l:S) SUM(app(l1:S,l2:S)) -> +#(sum(l1:S),sum(l2:S)) SUM(app(l1:S,l2:S)) -> SUM(l1:S) SUM(app(l1:S,l2:S)) -> SUM(l2:S) SUM(cons(x:S,l:S)) -> +#(x:S,sum(l:S)) SUM(cons(x:S,l:S)) -> SUM(l:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 Problem 1: SCC Processor: -> Pairs: *#(*(x:S,y:S),z:S) -> *#(x:S,*(y:S,z:S)) *#(*(x:S,y:S),z:S) -> *#(y:S,z:S) *#(s(x:S),s(y:S)) -> *#(x:S,y:S) *#(s(x:S),s(y:S)) -> +#(*(x:S,y:S),+(x:S,y:S)) *#(s(x:S),s(y:S)) -> +#(x:S,y:S) +#(+(x:S,y:S),z:S) -> +#(x:S,+(y:S,z:S)) +#(+(x:S,y:S),z:S) -> +#(y:S,z:S) +#(s(x:S),s(y:S)) -> +#(x:S,y:S) APP(cons(x:S,l1:S),l2:S) -> APP(l1:S,l2:S) PROD(app(l1:S,l2:S)) -> *#(prod(l1:S),prod(l2:S)) PROD(app(l1:S,l2:S)) -> PROD(l1:S) PROD(app(l1:S,l2:S)) -> PROD(l2:S) PROD(cons(x:S,l:S)) -> *#(x:S,prod(l:S)) PROD(cons(x:S,l:S)) -> PROD(l:S) SUM(app(l1:S,l2:S)) -> +#(sum(l1:S),sum(l2:S)) SUM(app(l1:S,l2:S)) -> SUM(l1:S) SUM(app(l1:S,l2:S)) -> SUM(l2:S) SUM(cons(x:S,l:S)) -> +#(x:S,sum(l:S)) SUM(cons(x:S,l:S)) -> SUM(l:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: APP(cons(x:S,l1:S),l2:S) -> APP(l1:S,l2:S) ->->-> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->->Cycle: ->->-> Pairs: +#(+(x:S,y:S),z:S) -> +#(x:S,+(y:S,z:S)) +#(+(x:S,y:S),z:S) -> +#(y:S,z:S) +#(s(x:S),s(y:S)) -> +#(x:S,y:S) ->->-> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->->Cycle: ->->-> Pairs: SUM(app(l1:S,l2:S)) -> SUM(l1:S) SUM(app(l1:S,l2:S)) -> SUM(l2:S) SUM(cons(x:S,l:S)) -> SUM(l:S) ->->-> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->->Cycle: ->->-> Pairs: *#(*(x:S,y:S),z:S) -> *#(x:S,*(y:S,z:S)) *#(*(x:S,y:S),z:S) -> *#(y:S,z:S) *#(s(x:S),s(y:S)) -> *#(x:S,y:S) ->->-> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->->Cycle: ->->-> Pairs: PROD(app(l1:S,l2:S)) -> PROD(l1:S) PROD(app(l1:S,l2:S)) -> PROD(l2:S) PROD(cons(x:S,l:S)) -> PROD(l:S) ->->-> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 The problem is decomposed in 5 subproblems. Problem 1.1: Subterm Processor: -> Pairs: APP(cons(x:S,l1:S),l2:S) -> APP(l1:S,l2:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Projection: pi(APP) = 1 Problem 1.1: SCC Processor: -> Pairs: Empty -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.2: Subterm Processor: -> Pairs: +#(+(x:S,y:S),z:S) -> +#(x:S,+(y:S,z:S)) +#(+(x:S,y:S),z:S) -> +#(y:S,z:S) +#(s(x:S),s(y:S)) -> +#(x:S,y:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Projection: pi(+#) = 1 Problem 1.2: SCC Processor: -> Pairs: Empty -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.3: Subterm Processor: -> Pairs: SUM(app(l1:S,l2:S)) -> SUM(l1:S) SUM(app(l1:S,l2:S)) -> SUM(l2:S) SUM(cons(x:S,l:S)) -> SUM(l:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Projection: pi(SUM) = 1 Problem 1.3: SCC Processor: -> Pairs: Empty -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.4: Subterm Processor: -> Pairs: *#(*(x:S,y:S),z:S) -> *#(x:S,*(y:S,z:S)) *#(*(x:S,y:S),z:S) -> *#(y:S,z:S) *#(s(x:S),s(y:S)) -> *#(x:S,y:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Projection: pi(*#) = 1 Problem 1.4: SCC Processor: -> Pairs: Empty -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.5: Subterm Processor: -> Pairs: PROD(app(l1:S,l2:S)) -> PROD(l1:S) PROD(app(l1:S,l2:S)) -> PROD(l2:S) PROD(cons(x:S,l:S)) -> PROD(l:S) -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Projection: pi(PROD) = 1 Problem 1.5: SCC Processor: -> Pairs: Empty -> Rules: *(*(x:S,y:S),z:S) -> *(x:S,*(y:S,z:S)) *(0,x:S) -> 0 *(s(x:S),s(y:S)) -> s(+(*(x:S,y:S),+(x:S,y:S))) *(x:S,0) -> 0 +(+(x:S,y:S),z:S) -> +(x:S,+(y:S,z:S)) +(0,x:S) -> x:S +(s(x:S),s(y:S)) -> s(s(+(x:S,y:S))) +(x:S,0) -> x:S app(cons(x:S,l1:S),l2:S) -> cons(x:S,app(l1:S,l2:S)) app(nil,l:S) -> l:S prod(app(l1:S,l2:S)) -> *(prod(l1:S),prod(l2:S)) prod(cons(x:S,l:S)) -> *(x:S,prod(l:S)) prod(nil) -> s(0) sum(app(l1:S,l2:S)) -> +(sum(l1:S),sum(l2:S)) sum(cons(x:S,l:S)) -> +(x:S,sum(l:S)) sum(nil) -> 0 ->Strongly Connected Components: There is no strongly connected component The problem is finite.