/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Problem 1: (VAR v_NonEmpty:S x:S y:S z:S) (RULES purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ) Problem 1: Innermost Equivalent Processor: -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil -> The term rewriting system is non-overlaping or locally confluent overlay system. Therefore, innermost termination implies termination. Problem 1: Dependency Pairs Processor: -> Pairs: PURGE(.(x:S,y:S)) -> PURGE(remove(x:S,y:S)) PURGE(.(x:S,y:S)) -> REMOVE(x:S,y:S) REMOVE(x:S,.(y:S,z:S)) -> REMOVE(x:S,z:S) -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil Problem 1: SCC Processor: -> Pairs: PURGE(.(x:S,y:S)) -> PURGE(remove(x:S,y:S)) PURGE(.(x:S,y:S)) -> REMOVE(x:S,y:S) REMOVE(x:S,.(y:S,z:S)) -> REMOVE(x:S,z:S) -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: REMOVE(x:S,.(y:S,z:S)) -> REMOVE(x:S,z:S) ->->-> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ->->Cycle: ->->-> Pairs: PURGE(.(x:S,y:S)) -> PURGE(remove(x:S,y:S)) ->->-> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil The problem is decomposed in 2 subproblems. Problem 1.1: Subterm Processor: -> Pairs: REMOVE(x:S,.(y:S,z:S)) -> REMOVE(x:S,z:S) -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ->Projection: pi(REMOVE) = 2 Problem 1.1: SCC Processor: -> Pairs: Empty -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.2: Reduction Pairs Processor: -> Pairs: PURGE(.(x:S,y:S)) -> PURGE(remove(x:S,y:S)) -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil -> Usable rules: remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [purge](X) = 0 [remove](X1,X2) = X1 + 2.X2 + 1 [.](X1,X2) = 2.X1 + 2.X2 + 2 [=](X1,X2) = 2.X2 [fSNonEmpty] = 0 [if](X1,X2,X3) = 2.X1 + X2 + 1 [nil] = 1 [PURGE](X) = 2.X [REMOVE](X1,X2) = 0 Problem 1.2: SCC Processor: -> Pairs: Empty -> Rules: purge(.(x:S,y:S)) -> .(x:S,purge(remove(x:S,y:S))) purge(nil) -> nil remove(x:S,.(y:S,z:S)) -> if(=(x:S,y:S),remove(x:S,z:S),.(y:S,remove(x:S,z:S))) remove(x:S,nil) -> nil ->Strongly Connected Components: There is no strongly connected component The problem is finite.