MAYBE Problem: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Proof: DP Processor: DPs: cond1#(true(),x,y) -> gr#(y,0()) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) cond2#(true(),x,y) -> p#(y) cond2#(true(),x,y) -> p#(x) cond2#(true(),x,y) -> gr#(y,0()) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) cond2#(false(),x,y) -> gr#(x,0()) cond2#(false(),x,y) -> eq#(x,y) cond2#(false(),x,y) -> and#(eq(x,y),gr(x,0())) cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) gr#(s(x),s(y)) -> gr#(x,y) eq#(s(x),s(y)) -> eq#(x,y) TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() TDG Processor: DPs: cond1#(true(),x,y) -> gr#(y,0()) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) cond2#(true(),x,y) -> p#(y) cond2#(true(),x,y) -> p#(x) cond2#(true(),x,y) -> gr#(y,0()) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) cond2#(false(),x,y) -> gr#(x,0()) cond2#(false(),x,y) -> eq#(x,y) cond2#(false(),x,y) -> and#(eq(x,y),gr(x,0())) cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) gr#(s(x),s(y)) -> gr#(x,y) eq#(s(x),s(y)) -> eq#(x,y) TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() graph: eq#(s(x),s(y)) -> eq#(x,y) -> eq#(s(x),s(y)) -> eq#(x,y) cond2#(false(),x,y) -> eq#(x,y) -> eq#(s(x),s(y)) -> eq#(x,y) cond2#(false(),x,y) -> gr#(x,0()) -> gr#(s(x),s(y)) -> gr#(x,y) cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) -> cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) -> cond1#(true(),x,y) -> gr#(y,0()) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(false(),x,y) -> and#(eq(x,y),gr(x,0())) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(false(),x,y) -> eq#(x,y) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(false(),x,y) -> gr#(x,0()) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(true(),x,y) -> gr#(y,0()) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(true(),x,y) -> p#(x) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) -> cond2#(true(),x,y) -> p#(y) cond2#(true(),x,y) -> gr#(y,0()) -> gr#(s(x),s(y)) -> gr#(x,y) gr#(s(x),s(y)) -> gr#(x,y) -> gr#(s(x),s(y)) -> gr#(x,y) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(false(),x,y) -> and#(eq(x,y),gr(x,0())) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(false(),x,y) -> eq#(x,y) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(false(),x,y) -> gr#(x,0()) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(true(),x,y) -> gr#(y,0()) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(true(),x,y) -> p#(x) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) -> cond2#(true(),x,y) -> p#(y) cond1#(true(),x,y) -> gr#(y,0()) -> gr#(s(x),s(y)) -> gr#(x,y) SCC Processor: #sccs: 3 #rules: 5 #arcs: 24/144 DPs: cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) cond2#(true(),x,y) -> cond2#(gr(y,0()),p(x),p(y)) TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Arctic Interpretation Processor: dimension: 1 interpretation: [cond2#](x0, x1, x2) = x0 + x1 + 1x2, [cond1#](x0, x1, x2) = -9x0 + x1 + 1x2 + -7, [s](x0) = 2x0 + 2, [and](x0, x1) = 1x0 + x1 + 0, [eq](x0, x1) = x0 + 3x1 + 0, [false] = 0, [p](x0) = -1x0 + 0, [cond2](x0, x1, x2) = 2x0 + 4x1 + 4x2 + 0, [gr](x0, x1) = x0 + -8x1, [0] = 0, [cond1](x0, x1, x2) = x0 + 4x1 + 4x2 + 0, [true] = 2 orientation: cond2#(false(),x,y) = x + 1y + 0 >= x + 1y + -7 = cond1#(and(eq(x,y),gr(x,0())),x,y) cond1#(true(),x,y) = x + 1y + -7 >= x + 1y + -8 = cond2#(gr(y,0()),x,y) cond2#(true(),x,y) = x + 1y + 2 >= -1x + y + 1 = cond2#(gr(y,0()),p(x),p(y)) cond1(true(),x,y) = 4x + 4y + 2 >= 4x + 4y + 0 = cond2(gr(y,0()),x,y) cond2(true(),x,y) = 4x + 4y + 4 >= 3x + 3y + 4 = cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) = 4x + 4y + 2 >= 4x + 4y + 1 = cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) = -8x + 0 >= 0 = false() gr(s(x),0()) = 2x + 2 >= 2 = true() gr(s(x),s(y)) = 2x + -6y + 2 >= x + -8y = gr(x,y) p(0()) = 0 >= 0 = 0() p(s(x)) = 1x + 1 >= x = x eq(0(),0()) = 3 >= 2 = true() eq(s(x),0()) = 2x + 3 >= 0 = false() eq(0(),s(x)) = 5x + 5 >= 0 = false() eq(s(x),s(y)) = 2x + 5y + 5 >= x + 3y + 0 = eq(x,y) and(true(),true()) = 3 >= 2 = true() and(false(),x) = x + 1 >= 0 = false() and(x,false()) = 1x + 0 >= 0 = false() problem: DPs: cond2#(false(),x,y) -> cond1#(and(eq(x,y),gr(x,0())),x,y) cond1#(true(),x,y) -> cond2#(gr(y,0()),x,y) TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Open DPs: gr#(s(x),s(y)) -> gr#(x,y) TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Subterm Criterion Processor: simple projection: pi(gr#) = 1 problem: DPs: TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Qed DPs: eq#(s(x),s(y)) -> eq#(x,y) TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Subterm Criterion Processor: simple projection: pi(eq#) = 1 problem: DPs: TRS: cond1(true(),x,y) -> cond2(gr(y,0()),x,y) cond2(true(),x,y) -> cond2(gr(y,0()),p(x),p(y)) cond2(false(),x,y) -> cond1(and(eq(x,y),gr(x,0())),x,y) gr(0(),x) -> false() gr(s(x),0()) -> true() gr(s(x),s(y)) -> gr(x,y) p(0()) -> 0() p(s(x)) -> x eq(0(),0()) -> true() eq(s(x),0()) -> false() eq(0(),s(x)) -> false() eq(s(x),s(y)) -> eq(x,y) and(true(),true()) -> true() and(false(),x) -> false() and(x,false()) -> false() Qed