/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 W:S X:S Y:S Z:S) (RULES fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ) Problem 1: Valid CTRS Processor: -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) -> The system is a deterministic 3-CTRS. Problem 1: Dependency Pairs Processor: Conditional Termination Problem 1: -> Pairs: PLUS(s(X:S),Y:S) -> PLUS(X:S,s(Y:S)) -> QPairs: Empty -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) Conditional Termination Problem 2: -> Pairs: FIB(s(X:S)) -> FIB(X:S) FIB(s(X:S)) -> PLUS(Y:S,Z:S) | fib(X:S) ->* pair(Y:S,Z:S) -> QPairs: PLUS(s(X:S),Y:S) -> PLUS(X:S,s(Y:S)) -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) The problem is decomposed in 2 subproblems. Problem 1.1: SCC Processor: -> Pairs: PLUS(s(X:S),Y:S) -> PLUS(X:S,s(Y:S)) -> QPairs: Empty -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: PLUS(s(X:S),Y:S) -> PLUS(X:S,s(Y:S)) -> QPairs: Empty ->->-> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) Problem 1.1: Conditional Subterm Processor: -> Pairs: PLUS(s(X:S),Y:S) -> PLUS(X:S,s(Y:S)) -> QPairs: Empty -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ->Projection: pi(PLUS) = 1 Problem 1.1: SCC Processor: -> Pairs: Empty -> QPairs: Empty -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.2: SCC Processor: -> Pairs: FIB(s(X:S)) -> FIB(X:S) FIB(s(X:S)) -> PLUS(Y:S,Z:S) | fib(X:S) ->* pair(Y:S,Z:S) -> QPairs: PLUS(s(X:S),Y:S) -> PLUS(X:S,s(Y:S)) -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: FIB(s(X:S)) -> FIB(X:S) -> QPairs: Empty ->->-> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) Problem 1.2: Conditional Subterm Processor: -> Pairs: FIB(s(X:S)) -> FIB(X:S) -> QPairs: Empty -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ->Projection: pi(FIB) = 1 Problem 1.2: SCC Processor: -> Pairs: Empty -> QPairs: Empty -> Rules: fib(0) -> pair(s(0),0) fib(s(X:S)) -> pair(W:S,Y:S) | fib(X:S) ->* pair(Y:S,Z:S), plus(Y:S,Z:S) ->* W:S plus(0,X:S) -> X:S plus(s(X:S),Y:S) -> plus(X:S,s(Y:S)) ->Strongly Connected Components: There is no strongly connected component The problem is finite.