/export/starexec/sandbox2/solver/bin/starexec_run_ttt2 /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Problem: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) Proof: DP Processor: DPs: half#(s(s(x))) -> half#(x) lastbit#(s(s(x))) -> lastbit#(x) conv#(x) -> conviter#(x,cons(0(),nil())) conviter#(x,l) -> zero#(x) conviter#(x,l) -> if#(zero(x),x,l) if#(false(),x,l) -> lastbit#(x) if#(false(),x,l) -> half#(x) if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) TDG Processor: DPs: half#(s(s(x))) -> half#(x) lastbit#(s(s(x))) -> lastbit#(x) conv#(x) -> conviter#(x,cons(0(),nil())) conviter#(x,l) -> zero#(x) conviter#(x,l) -> if#(zero(x),x,l) if#(false(),x,l) -> lastbit#(x) if#(false(),x,l) -> half#(x) if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) graph: if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) -> conviter#(x,l) -> if#(zero(x),x,l) if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) -> conviter#(x,l) -> zero#(x) if#(false(),x,l) -> lastbit#(x) -> lastbit#(s(s(x))) -> lastbit#(x) if#(false(),x,l) -> half#(x) -> half#(s(s(x))) -> half#(x) conviter#(x,l) -> if#(zero(x),x,l) -> if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) conviter#(x,l) -> if#(zero(x),x,l) -> if#(false(),x,l) -> half#(x) conviter#(x,l) -> if#(zero(x),x,l) -> if#(false(),x,l) -> lastbit#(x) conv#(x) -> conviter#(x,cons(0(),nil())) -> conviter#(x,l) -> if#(zero(x),x,l) conv#(x) -> conviter#(x,cons(0(),nil())) -> conviter#(x,l) -> zero#(x) lastbit#(s(s(x))) -> lastbit#(x) -> lastbit#(s(s(x))) -> lastbit#(x) half#(s(s(x))) -> half#(x) -> half#(s(s(x))) -> half#(x) SCC Processor: #sccs: 3 #rules: 4 #arcs: 11/64 DPs: if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) conviter#(x,l) -> if#(zero(x),x,l) TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) Usable Rule Processor: DPs: if#(false(),x,l) -> conviter#(half(x),cons(lastbit(x),l)) conviter#(x,l) -> if#(zero(x),x,l) TRS: lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) zero(0()) -> true() zero(s(x)) -> false() Arctic Interpretation Processor: dimension: 1 usable rules: lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) zero(0()) -> true() zero(s(x)) -> false() interpretation: [zero](x0) = 4x0, [half](x0) = -1x0 + 0, [lastbit](x0) = x0 + 1, [conviter#](x0, x1) = 2x0 + 1x1 + 0, [if#](x0, x1, x2) = -4x0 + 2x1 + 0, [true] = 0, [0] = 0, [cons](x0, x1) = x0 + 1, [false] = 7, [s](x0) = 2x0 + 3 orientation: if#(false(),x,l) = 2x + 3 >= 1x + 2 = conviter#(half(x),cons(lastbit(x),l)) conviter#(x,l) = 1l + 2x + 0 >= 2x + 0 = if#(zero(x),x,l) lastbit(0()) = 1 >= 0 = 0() lastbit(s(0())) = 3 >= 3 = s(0()) lastbit(s(s(x))) = 4x + 5 >= x + 1 = lastbit(x) half(0()) = 0 >= 0 = 0() half(s(0())) = 2 >= 0 = 0() half(s(s(x))) = 3x + 4 >= 1x + 3 = s(half(x)) zero(0()) = 4 >= 0 = true() zero(s(x)) = 6x + 7 >= 7 = false() problem: DPs: conviter#(x,l) -> if#(zero(x),x,l) TRS: lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) zero(0()) -> true() zero(s(x)) -> false() Restore Modifier: DPs: conviter#(x,l) -> if#(zero(x),x,l) TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) SCC Processor: #sccs: 0 #rules: 0 #arcs: 2/1 DPs: half#(s(s(x))) -> half#(x) TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) Subterm Criterion Processor: simple projection: pi(half#) = 0 problem: DPs: TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) Qed DPs: lastbit#(s(s(x))) -> lastbit#(x) TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) Subterm Criterion Processor: simple projection: pi(lastbit#) = 0 problem: DPs: TRS: half(0()) -> 0() half(s(0())) -> 0() half(s(s(x))) -> s(half(x)) lastbit(0()) -> 0() lastbit(s(0())) -> s(0()) lastbit(s(s(x))) -> lastbit(x) zero(0()) -> true() zero(s(x)) -> false() conv(x) -> conviter(x,cons(0(),nil())) conviter(x,l) -> if(zero(x),x,l) if(true(),x,l) -> l if(false(),x,l) -> conviter(half(x),cons(lastbit(x),l)) Qed