/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 x:S y:S) (RULES *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ) Problem 1: Innermost Equivalent Processor: -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(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: *#(s(x:S),y:S) -> *#(x:S,y:S) *#(s(x:S),y:S) -> +#(*(x:S,y:S),y:S) +#(x:S,s(y:S)) -> +#(x:S,y:S) FACT(s(x:S)) -> *#(s(x:S),fact(p(s(x:S)))) FACT(s(x:S)) -> FACT(p(s(x:S))) FACT(s(x:S)) -> P(s(x:S)) -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S Problem 1: SCC Processor: -> Pairs: *#(s(x:S),y:S) -> *#(x:S,y:S) *#(s(x:S),y:S) -> +#(*(x:S,y:S),y:S) +#(x:S,s(y:S)) -> +#(x:S,y:S) FACT(s(x:S)) -> *#(s(x:S),fact(p(s(x:S)))) FACT(s(x:S)) -> FACT(p(s(x:S))) FACT(s(x:S)) -> P(s(x:S)) -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: +#(x:S,s(y:S)) -> +#(x:S,y:S) ->->-> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->->Cycle: ->->-> Pairs: *#(s(x:S),y:S) -> *#(x:S,y:S) ->->-> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->->Cycle: ->->-> Pairs: FACT(s(x:S)) -> FACT(p(s(x:S))) ->->-> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S The problem is decomposed in 3 subproblems. Problem 1.1: Subterm Processor: -> Pairs: +#(x:S,s(y:S)) -> +#(x:S,y:S) -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->Projection: pi(+#) = 2 Problem 1.1: SCC Processor: -> Pairs: Empty -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.2: Subterm Processor: -> Pairs: *#(s(x:S),y:S) -> *#(x:S,y:S) -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->Projection: pi(*#) = 1 Problem 1.2: SCC Processor: -> Pairs: Empty -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.3: Reduction Pairs Processor: -> Pairs: FACT(s(x:S)) -> FACT(p(s(x:S))) -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S -> Usable rules: p(s(x:S)) -> x:S ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 2 ->Interpretation: [*](X1,X2) = 0 [+](X1,X2) = 0 [fact](X) = 0 [p](X) = 1/2.X [0] = 0 [fSNonEmpty] = 0 [s](X) = 2.X + 1/2 [*#](X1,X2) = 0 [+#](X1,X2) = 0 [FACT](X) = 2.X [P](X) = 0 Problem 1.3: SCC Processor: -> Pairs: Empty -> Rules: *(0,y:S) -> 0 *(s(x:S),y:S) -> +(*(x:S,y:S),y:S) +(x:S,0) -> x:S +(x:S,s(y:S)) -> s(+(x:S,y:S)) fact(0) -> s(0) fact(s(x:S)) -> *(s(x:S),fact(p(s(x:S)))) p(s(x:S)) -> x:S ->Strongly Connected Components: There is no strongly connected component The problem is finite.