/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Problem 1: (VAR X X1 X2 XS) (RULES active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ) Problem 1: Dependency Pairs Processor: -> Pairs: ACTIVE(cons(X1,X2)) -> ACTIVE(X1) ACTIVE(cons(X1,X2)) -> CONS(active(X1),X2) ACTIVE(head(X)) -> ACTIVE(X) ACTIVE(head(X)) -> HEAD(active(X)) ACTIVE(incr(cons(X,XS))) -> CONS(s(X),incr(XS)) ACTIVE(incr(cons(X,XS))) -> INCR(XS) ACTIVE(incr(cons(X,XS))) -> S(X) ACTIVE(incr(X)) -> ACTIVE(X) ACTIVE(incr(X)) -> INCR(active(X)) ACTIVE(s(X)) -> ACTIVE(X) ACTIVE(s(X)) -> S(active(X)) ACTIVE(tail(X)) -> ACTIVE(X) ACTIVE(tail(X)) -> TAIL(active(X)) CONS(mark(X1),X2) -> CONS(X1,X2) CONS(ok(X1),ok(X2)) -> CONS(X1,X2) HEAD(mark(X)) -> HEAD(X) HEAD(ok(X)) -> HEAD(X) INCR(mark(X)) -> INCR(X) INCR(ok(X)) -> INCR(X) PROPER(cons(X1,X2)) -> CONS(proper(X1),proper(X2)) PROPER(cons(X1,X2)) -> PROPER(X1) PROPER(cons(X1,X2)) -> PROPER(X2) PROPER(head(X)) -> HEAD(proper(X)) PROPER(head(X)) -> PROPER(X) PROPER(incr(X)) -> INCR(proper(X)) PROPER(incr(X)) -> PROPER(X) PROPER(s(X)) -> PROPER(X) PROPER(s(X)) -> S(proper(X)) PROPER(tail(X)) -> PROPER(X) PROPER(tail(X)) -> TAIL(proper(X)) S(mark(X)) -> S(X) S(ok(X)) -> S(X) TAIL(mark(X)) -> TAIL(X) TAIL(ok(X)) -> TAIL(X) TOP(mark(X)) -> PROPER(X) TOP(mark(X)) -> TOP(proper(X)) TOP(ok(X)) -> ACTIVE(X) TOP(ok(X)) -> TOP(active(X)) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) Problem 1: SCC Processor: -> Pairs: ACTIVE(cons(X1,X2)) -> ACTIVE(X1) ACTIVE(cons(X1,X2)) -> CONS(active(X1),X2) ACTIVE(head(X)) -> ACTIVE(X) ACTIVE(head(X)) -> HEAD(active(X)) ACTIVE(incr(cons(X,XS))) -> CONS(s(X),incr(XS)) ACTIVE(incr(cons(X,XS))) -> INCR(XS) ACTIVE(incr(cons(X,XS))) -> S(X) ACTIVE(incr(X)) -> ACTIVE(X) ACTIVE(incr(X)) -> INCR(active(X)) ACTIVE(s(X)) -> ACTIVE(X) ACTIVE(s(X)) -> S(active(X)) ACTIVE(tail(X)) -> ACTIVE(X) ACTIVE(tail(X)) -> TAIL(active(X)) CONS(mark(X1),X2) -> CONS(X1,X2) CONS(ok(X1),ok(X2)) -> CONS(X1,X2) HEAD(mark(X)) -> HEAD(X) HEAD(ok(X)) -> HEAD(X) INCR(mark(X)) -> INCR(X) INCR(ok(X)) -> INCR(X) PROPER(cons(X1,X2)) -> CONS(proper(X1),proper(X2)) PROPER(cons(X1,X2)) -> PROPER(X1) PROPER(cons(X1,X2)) -> PROPER(X2) PROPER(head(X)) -> HEAD(proper(X)) PROPER(head(X)) -> PROPER(X) PROPER(incr(X)) -> INCR(proper(X)) PROPER(incr(X)) -> PROPER(X) PROPER(s(X)) -> PROPER(X) PROPER(s(X)) -> S(proper(X)) PROPER(tail(X)) -> PROPER(X) PROPER(tail(X)) -> TAIL(proper(X)) S(mark(X)) -> S(X) S(ok(X)) -> S(X) TAIL(mark(X)) -> TAIL(X) TAIL(ok(X)) -> TAIL(X) TOP(mark(X)) -> PROPER(X) TOP(mark(X)) -> TOP(proper(X)) TOP(ok(X)) -> ACTIVE(X) TOP(ok(X)) -> TOP(active(X)) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: TAIL(mark(X)) -> TAIL(X) TAIL(ok(X)) -> TAIL(X) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: S(mark(X)) -> S(X) S(ok(X)) -> S(X) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: INCR(mark(X)) -> INCR(X) INCR(ok(X)) -> INCR(X) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: HEAD(mark(X)) -> HEAD(X) HEAD(ok(X)) -> HEAD(X) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: CONS(mark(X1),X2) -> CONS(X1,X2) CONS(ok(X1),ok(X2)) -> CONS(X1,X2) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: PROPER(cons(X1,X2)) -> PROPER(X1) PROPER(cons(X1,X2)) -> PROPER(X2) PROPER(head(X)) -> PROPER(X) PROPER(incr(X)) -> PROPER(X) PROPER(s(X)) -> PROPER(X) PROPER(tail(X)) -> PROPER(X) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: ACTIVE(cons(X1,X2)) -> ACTIVE(X1) ACTIVE(head(X)) -> ACTIVE(X) ACTIVE(incr(X)) -> ACTIVE(X) ACTIVE(s(X)) -> ACTIVE(X) ACTIVE(tail(X)) -> ACTIVE(X) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->->Cycle: ->->-> Pairs: TOP(mark(X)) -> TOP(proper(X)) TOP(ok(X)) -> TOP(active(X)) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) The problem is decomposed in 8 subproblems. Problem 1.1: Subterm Processor: -> Pairs: TAIL(mark(X)) -> TAIL(X) TAIL(ok(X)) -> TAIL(X) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(TAIL) = 1 Problem 1.1: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.2: Subterm Processor: -> Pairs: S(mark(X)) -> S(X) S(ok(X)) -> S(X) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(S) = 1 Problem 1.2: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.3: Subterm Processor: -> Pairs: INCR(mark(X)) -> INCR(X) INCR(ok(X)) -> INCR(X) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(INCR) = 1 Problem 1.3: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.4: Subterm Processor: -> Pairs: HEAD(mark(X)) -> HEAD(X) HEAD(ok(X)) -> HEAD(X) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(HEAD) = 1 Problem 1.4: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.5: Subterm Processor: -> Pairs: CONS(mark(X1),X2) -> CONS(X1,X2) CONS(ok(X1),ok(X2)) -> CONS(X1,X2) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(CONS) = 1 Problem 1.5: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.6: Subterm Processor: -> Pairs: PROPER(cons(X1,X2)) -> PROPER(X1) PROPER(cons(X1,X2)) -> PROPER(X2) PROPER(head(X)) -> PROPER(X) PROPER(incr(X)) -> PROPER(X) PROPER(s(X)) -> PROPER(X) PROPER(tail(X)) -> PROPER(X) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(PROPER) = 1 Problem 1.6: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.7: Subterm Processor: -> Pairs: ACTIVE(cons(X1,X2)) -> ACTIVE(X1) ACTIVE(head(X)) -> ACTIVE(X) ACTIVE(incr(X)) -> ACTIVE(X) ACTIVE(s(X)) -> ACTIVE(X) ACTIVE(tail(X)) -> ACTIVE(X) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Projection: pi(ACTIVE) = 1 Problem 1.7: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite. Problem 1.8: Reduction Pair Processor: -> Pairs: TOP(mark(X)) -> TOP(proper(X)) TOP(ok(X)) -> TOP(active(X)) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) -> Usable rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) ->Interpretation type: Linear ->Coefficients: All rationals ->Dimension: 1 ->Bound: 4 ->Interpretation: [active](X) = X [cons](X1,X2) = 3.X1 + 1/4.X2 + 1/4 [head](X) = 3/2.X [incr](X) = X + 1/2 [proper](X) = X [s](X) = X [tail](X) = 4.X [0] = 0 [mark](X) = X + 1/4 [nats] = 3/2 [odds] = 3 [ok](X) = X [pairs] = 2 [TOP](X) = 1/2.X Problem 1.8: SCC Processor: -> Pairs: TOP(ok(X)) -> TOP(active(X)) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: ->->Cycle: ->->-> Pairs: TOP(ok(X)) -> TOP(active(X)) ->->-> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) Problem 1.8: Reduction Pair Processor: -> Pairs: TOP(ok(X)) -> TOP(active(X)) -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) -> Usable rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) ->Interpretation type: Linear ->Coefficients: Natural Numbers ->Dimension: 1 ->Bound: 2 ->Interpretation: [active](X) = 2.X + 1 [cons](X1,X2) = X1 + 2.X2 [head](X) = 2.X + 1 [incr](X) = X [s](X) = X [tail](X) = 2.X + 2 [0] = 0 [mark](X) = X + 1 [nats] = 0 [odds] = 2 [ok](X) = 2.X + 2 [pairs] = 2 [TOP](X) = X Problem 1.8: SCC Processor: -> Pairs: Empty -> Rules: active(cons(X1,X2)) -> cons(active(X1),X2) active(head(cons(X,XS))) -> mark(X) active(head(X)) -> head(active(X)) active(incr(cons(X,XS))) -> mark(cons(s(X),incr(XS))) active(incr(X)) -> incr(active(X)) active(s(X)) -> s(active(X)) active(tail(cons(X,XS))) -> mark(XS) active(tail(X)) -> tail(active(X)) active(nats) -> mark(cons(0,incr(nats))) active(odds) -> mark(incr(pairs)) active(pairs) -> mark(cons(0,incr(odds))) cons(mark(X1),X2) -> mark(cons(X1,X2)) cons(ok(X1),ok(X2)) -> ok(cons(X1,X2)) head(mark(X)) -> mark(head(X)) head(ok(X)) -> ok(head(X)) incr(mark(X)) -> mark(incr(X)) incr(ok(X)) -> ok(incr(X)) proper(cons(X1,X2)) -> cons(proper(X1),proper(X2)) proper(head(X)) -> head(proper(X)) proper(incr(X)) -> incr(proper(X)) proper(s(X)) -> s(proper(X)) proper(tail(X)) -> tail(proper(X)) proper(0) -> ok(0) proper(nats) -> ok(nats) proper(odds) -> ok(odds) proper(pairs) -> ok(pairs) s(mark(X)) -> mark(s(X)) s(ok(X)) -> ok(s(X)) tail(mark(X)) -> mark(tail(X)) tail(ok(X)) -> ok(tail(X)) top(mark(X)) -> top(proper(X)) top(ok(X)) -> top(active(X)) ->Strongly Connected Components: There is no strongly connected component The problem is finite.