YES Problem 1: (VAR v_NonEmpty:S f:S x:S xs:S y:S) (RULES app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S ) Problem 1: Innermost Equivalent Processor: -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S -> The term rewriting system is non-overlaping or locally confluent overlay system. Therefore, innermost termination implies termination. Problem 1: Dependency Pairs Processor: -> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) APP(app(add,app(s,x:S)),y:S) -> APP(add,x:S) APP(app(add,app(s,x:S)),y:S) -> APP(s,app(app(add,x:S),y:S)) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(app(map,f:S),xs:S) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(cons,app(f:S,x:S)) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(f:S,x:S) -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S Problem 1: SCC Processor: -> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) APP(app(add,app(s,x:S)),y:S) -> APP(add,x:S) APP(app(add,app(s,x:S)),y:S) -> APP(s,app(app(add,x:S),y:S)) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(app(map,f:S),xs:S) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(cons,app(f:S,x:S)) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(f:S,x:S) -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(app(map,f:S),xs:S) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(f:S,x:S) ->->-> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S Problem 1: Subterm Processor: -> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(app(map,f:S),xs:S) APP(app(map,f:S),app(app(cons,x:S),xs:S)) -> APP(f:S,x:S) -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S ->Projection: pi(APP) = 2 Problem 1: SCC Processor: -> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) ->->-> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S Problem 1: Reduction Pairs Processor: -> Pairs: APP(app(add,app(s,x:S)),y:S) -> APP(app(add,x:S),y:S) -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S -> Usable rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S ->Interpretation type: Simple mixed ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [app](X1,X2) = X1.X2 + 2.X1 + 2 [0] = 0 [add] = 1 [cons] = 0 [fSNonEmpty] = 0 [id] = 2 [map] = 2 [nil] = 2 [s] = 1 [APP](X1,X2) = X1.X2 + 2.X1 Problem 1: SCC Processor: -> Pairs: Empty -> Rules: app(app(add,app(s,x:S)),y:S) -> app(s,app(app(add,x:S),y:S)) app(app(map,f:S),app(app(cons,x:S),xs:S)) -> app(app(cons,app(f:S,x:S)),app(app(map,f:S),xs:S)) app(app(map,f:S),nil) -> nil app(add,0) -> id app(id,x:S) -> x:S ->Strongly Connected Components: There is no strongly connected component The problem is finite.