YES Problem: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Proof: DP Processor: DPs: a#(b(x1)) -> c#(b(x1)) c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> c#(x1) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) TDG Processor: DPs: a#(b(x1)) -> c#(b(x1)) c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> c#(x1) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) graph: g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(b(x1)) g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(x1) g#(f(x1)) -> e#(x1) -> e#(x1) -> f#(x1) f#(g(x1)) -> c#(x1) -> c#(b(x1)) -> g#(x1) f#(g(x1)) -> c#(x1) -> c#(c(x1)) -> d#(b(x1)) f#(g(x1)) -> c#(x1) -> c#(c(x1)) -> b#(x1) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> b#(c(x1)) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> c#(x1) f#(g(x1)) -> a#(c(x1)) -> a#(b(x1)) -> c#(b(x1)) e#(x1) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) e#(x1) -> f#(x1) -> f#(g(x1)) -> c#(x1) e#(x1) -> b#(b(x1)) -> b#(b(x1)) -> f#(x1) e#(x1) -> b#(x1) -> b#(b(x1)) -> f#(x1) d#(x1) -> e#(x1) -> e#(x1) -> b#(b(x1)) d#(x1) -> e#(x1) -> e#(x1) -> b#(x1) d#(x1) -> e#(x1) -> e#(x1) -> f#(x1) d#(x1) -> c#(e(x1)) -> c#(b(x1)) -> g#(x1) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> d#(b(x1)) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> b#(x1) b#(b(x1)) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) b#(b(x1)) -> f#(x1) -> f#(g(x1)) -> c#(x1) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> c#(e(x1)) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> e#(x1) c#(c(x1)) -> b#(x1) -> b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) -> g#(f(x1)) -> e#(x1) a#(b(x1)) -> c#(b(x1)) -> c#(b(x1)) -> g#(x1) a#(b(x1)) -> c#(b(x1)) -> c#(c(x1)) -> d#(b(x1)) a#(b(x1)) -> c#(b(x1)) -> c#(c(x1)) -> b#(x1) a#(x1) -> b#(c(x1)) -> b#(b(x1)) -> f#(x1) a#(x1) -> c#(x1) -> c#(b(x1)) -> g#(x1) a#(x1) -> c#(x1) -> c#(c(x1)) -> d#(b(x1)) a#(x1) -> c#(x1) -> c#(c(x1)) -> b#(x1) Arctic Interpretation Processor: dimension: 2 usable rules: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) interpretation: [g#](x0) = [0 1]x0 + [0], [f#](x0) = [1 1]x0 + [0], [e#](x0) = [1 1]x0 + [0], [d#](x0) = [1 1]x0 + [0], [b#](x0) = [1 0]x0 + [0], [c#](x0) = [1 0]x0 + [0], [a#](x0) = [3 1]x0 + [0], [0 -&] [-&] [g](x0) = [3 3 ]x0 + [0 ], [0 0] [f](x0) = [0 0]x0, [0 0] [-&] [e](x0) = [0 0]x0 + [0 ], [0 0] [0] [d](x0) = [3 3]x0 + [0], [0 0] [-&] [c](x0) = [3 0]x0 + [0 ], [3 0] [0] [a](x0) = [3 0]x0 + [0], [0 0] [b](x0) = [0 0]x0 orientation: a#(b(x1)) = [3 3]x1 + [0] >= [1 1]x1 + [0] = c#(b(x1)) c#(c(x1)) = [3 1]x1 + [0] >= [1 0]x1 + [0] = b#(x1) c#(c(x1)) = [3 1]x1 + [0] >= [1 1]x1 + [0] = d#(b(x1)) d#(x1) = [1 1]x1 + [0] >= [1 1]x1 + [0] = e#(x1) d#(x1) = [1 1]x1 + [0] >= [1 1]x1 + [0] = c#(e(x1)) b#(b(x1)) = [1 1]x1 + [0] >= [1 1]x1 + [0] = f#(x1) c#(b(x1)) = [1 1]x1 + [0] >= [0 1]x1 + [0] = g#(x1) e#(x1) = [1 1]x1 + [0] >= [1 1]x1 + [0] = f#(x1) e#(x1) = [1 1]x1 + [0] >= [1 0]x1 + [0] = b#(x1) e#(x1) = [1 1]x1 + [0] >= [1 1]x1 + [0] = b#(b(x1)) f#(g(x1)) = [4 4]x1 + [1] >= [1 0]x1 + [0] = c#(x1) f#(g(x1)) = [4 4]x1 + [1] >= [4 3]x1 + [1] = a#(c(x1)) g#(f(x1)) = [1 1]x1 + [0] >= [1 1]x1 + [0] = e#(x1) a#(x1) = [3 1]x1 + [0] >= [1 0]x1 + [0] = c#(x1) a#(x1) = [3 1]x1 + [0] >= [3 1]x1 + [0] = b#(c(x1)) [3 3] [0] [0 0] [-&] a(b(x1)) = [3 3]x1 + [0] >= [3 3]x1 + [0 ] = c(b(x1)) [3 0] [0] [0 0] [0] c(c(x1)) = [3 3]x1 + [0] >= [3 3]x1 + [0] = d(b(x1)) [0 0] [0] [0 0] [0] d(x1) = [3 3]x1 + [0] >= [3 3]x1 + [0] = c(e(x1)) [0 0] [0 0] b(b(x1)) = [0 0]x1 >= [0 0]x1 = f(x1) [0 0] [-&] [0 -&] [-&] c(b(x1)) = [3 3]x1 + [0 ] >= [3 3 ]x1 + [0 ] = g(x1) [0 0] [-&] [0 0] e(x1) = [0 0]x1 + [0 ] >= [0 0]x1 = f(x1) [0 0] [-&] [0 0] e(x1) = [0 0]x1 + [0 ] >= [0 0]x1 = b(b(x1)) [3 3] [0] [3 3] [0] f(g(x1)) = [3 3]x1 + [0] >= [3 3]x1 + [0] = a(c(x1)) [0 0] [-&] [0 0] [-&] g(f(x1)) = [3 3]x1 + [0 ] >= [0 0]x1 + [0 ] = e(x1) [3 0] [0] [3 0] [0] a(x1) = [3 0]x1 + [0] >= [3 0]x1 + [0] = b(c(x1)) problem: DPs: a#(b(x1)) -> c#(b(x1)) c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Restore Modifier: DPs: a#(b(x1)) -> c#(b(x1)) c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) EDG Processor: DPs: a#(b(x1)) -> c#(b(x1)) c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) graph: g#(f(x1)) -> e#(x1) -> e#(x1) -> f#(x1) g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(x1) g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) -> a#(b(x1)) -> c#(b(x1)) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> c#(x1) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> b#(c(x1)) e#(x1) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) e#(x1) -> b#(b(x1)) -> b#(b(x1)) -> f#(x1) e#(x1) -> b#(x1) -> b#(b(x1)) -> f#(x1) d#(x1) -> e#(x1) -> e#(x1) -> f#(x1) d#(x1) -> e#(x1) -> e#(x1) -> b#(x1) d#(x1) -> e#(x1) -> e#(x1) -> b#(b(x1)) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> b#(x1) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> d#(b(x1)) d#(x1) -> c#(e(x1)) -> c#(b(x1)) -> g#(x1) b#(b(x1)) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> e#(x1) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> c#(e(x1)) c#(c(x1)) -> b#(x1) -> b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) -> g#(f(x1)) -> e#(x1) a#(b(x1)) -> c#(b(x1)) -> c#(c(x1)) -> b#(x1) a#(b(x1)) -> c#(b(x1)) -> c#(c(x1)) -> d#(b(x1)) a#(b(x1)) -> c#(b(x1)) -> c#(b(x1)) -> g#(x1) a#(x1) -> b#(c(x1)) -> b#(b(x1)) -> f#(x1) a#(x1) -> c#(x1) -> c#(c(x1)) -> b#(x1) a#(x1) -> c#(x1) -> c#(c(x1)) -> d#(b(x1)) a#(x1) -> c#(x1) -> c#(b(x1)) -> g#(x1) Arctic Interpretation Processor: dimension: 2 usable rules: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) interpretation: [g#](x0) = [0 0]x0 + [0], [f#](x0) = [0 0]x0 + [0], [e#](x0) = [0 0]x0 + [0], [d#](x0) = [0 0]x0 + [0], [b#](x0) = [0 0]x0 + [0], [c#](x0) = [0 0]x0 + [0], [a#](x0) = [2 0]x0 + [0], [0 0] [0] [g](x0) = [2 2]x0 + [2], [0 0 ] [-&] [f](x0) = [-& 0 ]x0 + [0 ], [0 0] [0] [e](x0) = [0 0]x0 + [0], [0 0] [0] [d](x0) = [2 2]x0 + [2], [0 0] [0] [c](x0) = [2 0]x0 + [0], [2 0] [0] [a](x0) = [2 0]x0 + [1], [0 0 ] [0] [b](x0) = [-& 0 ]x0 + [0] orientation: a#(b(x1)) = [2 2]x1 + [2] >= [0 0]x1 + [0] = c#(b(x1)) c#(c(x1)) = [2 0]x1 + [0] >= [0 0]x1 + [0] = b#(x1) c#(c(x1)) = [2 0]x1 + [0] >= [0 0]x1 + [0] = d#(b(x1)) d#(x1) = [0 0]x1 + [0] >= [0 0]x1 + [0] = e#(x1) d#(x1) = [0 0]x1 + [0] >= [0 0]x1 + [0] = c#(e(x1)) b#(b(x1)) = [0 0]x1 + [0] >= [0 0]x1 + [0] = f#(x1) c#(b(x1)) = [0 0]x1 + [0] >= [0 0]x1 + [0] = g#(x1) e#(x1) = [0 0]x1 + [0] >= [0 0]x1 + [0] = f#(x1) e#(x1) = [0 0]x1 + [0] >= [0 0]x1 + [0] = b#(x1) e#(x1) = [0 0]x1 + [0] >= [0 0]x1 + [0] = b#(b(x1)) f#(g(x1)) = [2 2]x1 + [2] >= [2 2]x1 + [2] = a#(c(x1)) g#(f(x1)) = [0 0]x1 + [0] >= [0 0]x1 + [0] = e#(x1) a#(x1) = [2 0]x1 + [0] >= [0 0]x1 + [0] = c#(x1) a#(x1) = [2 0]x1 + [0] >= [2 0]x1 + [0] = b#(c(x1)) [2 2] [2] [0 0] [0] a(b(x1)) = [2 2]x1 + [2] >= [2 2]x1 + [2] = c(b(x1)) [2 0] [0] [0 0] [0] c(c(x1)) = [2 2]x1 + [2] >= [2 2]x1 + [2] = d(b(x1)) [0 0] [0] [0 0] [0] d(x1) = [2 2]x1 + [2] >= [2 2]x1 + [2] = c(e(x1)) [0 0 ] [0] [0 0 ] [-&] b(b(x1)) = [-& 0 ]x1 + [0] >= [-& 0 ]x1 + [0 ] = f(x1) [0 0] [0] [0 0] [0] c(b(x1)) = [2 2]x1 + [2] >= [2 2]x1 + [2] = g(x1) [0 0] [0] [0 0 ] [-&] e(x1) = [0 0]x1 + [0] >= [-& 0 ]x1 + [0 ] = f(x1) [0 0] [0] [0 0 ] [0] e(x1) = [0 0]x1 + [0] >= [-& 0 ]x1 + [0] = b(b(x1)) [2 2] [2] [2 2] [2] f(g(x1)) = [2 2]x1 + [2] >= [2 2]x1 + [2] = a(c(x1)) [0 0] [0] [0 0] [0] g(f(x1)) = [2 2]x1 + [2] >= [0 0]x1 + [0] = e(x1) [2 0] [0] [2 0] [0] a(x1) = [2 0]x1 + [1] >= [2 0]x1 + [0] = b(c(x1)) problem: DPs: c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Restore Modifier: DPs: c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) EDG Processor: DPs: c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> c#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) graph: g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(b(x1)) g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(x1) g#(f(x1)) -> e#(x1) -> e#(x1) -> f#(x1) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> b#(c(x1)) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> c#(x1) e#(x1) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) e#(x1) -> b#(b(x1)) -> b#(b(x1)) -> f#(x1) e#(x1) -> b#(x1) -> b#(b(x1)) -> f#(x1) d#(x1) -> e#(x1) -> e#(x1) -> b#(b(x1)) d#(x1) -> e#(x1) -> e#(x1) -> b#(x1) d#(x1) -> e#(x1) -> e#(x1) -> f#(x1) d#(x1) -> c#(e(x1)) -> c#(b(x1)) -> g#(x1) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> d#(b(x1)) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> b#(x1) b#(b(x1)) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> c#(e(x1)) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> e#(x1) c#(c(x1)) -> b#(x1) -> b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) -> g#(f(x1)) -> e#(x1) a#(x1) -> b#(c(x1)) -> b#(b(x1)) -> f#(x1) a#(x1) -> c#(x1) -> c#(b(x1)) -> g#(x1) a#(x1) -> c#(x1) -> c#(c(x1)) -> d#(b(x1)) a#(x1) -> c#(x1) -> c#(c(x1)) -> b#(x1) Arctic Interpretation Processor: dimension: 2 usable rules: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) interpretation: [g#](x0) = [1 0]x0 + [1], [f#](x0) = [1 0]x0 + [0], [e#](x0) = [1 0]x0 + [1], [d#](x0) = [1 1]x0 + [1], [b#](x0) = [1 0]x0 + [0], [c#](x0) = [0 1]x0, [a#](x0) = [1 2]x0 + [0], [1 1] [1] [g](x0) = [0 0]x0 + [0], [0 -&] [f](x0) = [0 0 ]x0, [0 0] [0] [e](x0) = [0 0]x0 + [0], [1 1] [1] [d](x0) = [0 0]x0 + [0], [0 1] [-&] [c](x0) = [0 0]x0 + [0 ], [0 1] [1] [a](x0) = [0 1]x0 + [0], [0 -&] [-&] [b](x0) = [0 0 ]x0 + [0 ] orientation: c#(c(x1)) = [1 1]x1 + [1] >= [1 0]x1 + [0] = b#(x1) c#(c(x1)) = [1 1]x1 + [1] >= [1 1]x1 + [1] = d#(b(x1)) d#(x1) = [1 1]x1 + [1] >= [1 0]x1 + [1] = e#(x1) d#(x1) = [1 1]x1 + [1] >= [1 1]x1 + [1] = c#(e(x1)) b#(b(x1)) = [1 0]x1 + [0] >= [1 0]x1 + [0] = f#(x1) c#(b(x1)) = [1 1]x1 + [1] >= [1 0]x1 + [1] = g#(x1) e#(x1) = [1 0]x1 + [1] >= [1 0]x1 + [0] = f#(x1) e#(x1) = [1 0]x1 + [1] >= [1 0]x1 + [0] = b#(x1) e#(x1) = [1 0]x1 + [1] >= [1 0]x1 + [0] = b#(b(x1)) f#(g(x1)) = [2 2]x1 + [2] >= [2 2]x1 + [2] = a#(c(x1)) g#(f(x1)) = [1 0]x1 + [1] >= [1 0]x1 + [1] = e#(x1) a#(x1) = [1 2]x1 + [0] >= [0 1]x1 = c#(x1) a#(x1) = [1 2]x1 + [0] >= [1 2]x1 + [0] = b#(c(x1)) [1 1] [1] [1 1] [1] a(b(x1)) = [1 1]x1 + [1] >= [0 0]x1 + [0] = c(b(x1)) [1 1] [1] [1 1] [1] c(c(x1)) = [0 1]x1 + [0] >= [0 0]x1 + [0] = d(b(x1)) [1 1] [1] [1 1] [1] d(x1) = [0 0]x1 + [0] >= [0 0]x1 + [0] = c(e(x1)) [0 -&] [-&] [0 -&] b(b(x1)) = [0 0 ]x1 + [0 ] >= [0 0 ]x1 = f(x1) [1 1] [1] [1 1] [1] c(b(x1)) = [0 0]x1 + [0] >= [0 0]x1 + [0] = g(x1) [0 0] [0] [0 -&] e(x1) = [0 0]x1 + [0] >= [0 0 ]x1 = f(x1) [0 0] [0] [0 -&] [-&] e(x1) = [0 0]x1 + [0] >= [0 0 ]x1 + [0 ] = b(b(x1)) [1 1] [1] [1 1] [1] f(g(x1)) = [1 1]x1 + [1] >= [1 1]x1 + [1] = a(c(x1)) [1 1] [1] [0 0] [0] g(f(x1)) = [0 0]x1 + [0] >= [0 0]x1 + [0] = e(x1) [0 1] [1] [0 1] [-&] a(x1) = [0 1]x1 + [0] >= [0 1]x1 + [0 ] = b(c(x1)) problem: DPs: c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Restore Modifier: DPs: c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) EDG Processor: DPs: c#(c(x1)) -> b#(x1) c#(c(x1)) -> d#(b(x1)) d#(x1) -> e#(x1) d#(x1) -> c#(e(x1)) b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) e#(x1) -> f#(x1) e#(x1) -> b#(x1) e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) g#(f(x1)) -> e#(x1) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) graph: g#(f(x1)) -> e#(x1) -> e#(x1) -> f#(x1) g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(x1) g#(f(x1)) -> e#(x1) -> e#(x1) -> b#(b(x1)) f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> b#(c(x1)) e#(x1) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) e#(x1) -> b#(b(x1)) -> b#(b(x1)) -> f#(x1) e#(x1) -> b#(x1) -> b#(b(x1)) -> f#(x1) d#(x1) -> e#(x1) -> e#(x1) -> f#(x1) d#(x1) -> e#(x1) -> e#(x1) -> b#(x1) d#(x1) -> e#(x1) -> e#(x1) -> b#(b(x1)) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> b#(x1) d#(x1) -> c#(e(x1)) -> c#(c(x1)) -> d#(b(x1)) d#(x1) -> c#(e(x1)) -> c#(b(x1)) -> g#(x1) b#(b(x1)) -> f#(x1) -> f#(g(x1)) -> a#(c(x1)) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> e#(x1) c#(c(x1)) -> d#(b(x1)) -> d#(x1) -> c#(e(x1)) c#(c(x1)) -> b#(x1) -> b#(b(x1)) -> f#(x1) c#(b(x1)) -> g#(x1) -> g#(f(x1)) -> e#(x1) a#(x1) -> b#(c(x1)) -> b#(b(x1)) -> f#(x1) SCC Processor: #sccs: 2 #rules: 5 #arcs: 19/144 DPs: d#(x1) -> c#(e(x1)) c#(c(x1)) -> d#(b(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Arctic Interpretation Processor: dimension: 3 usable rules: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) interpretation: [d#](x0) = [0 0 1]x0 + [0], [c#](x0) = [0 1 0]x0 + [0], [0 -& 0 ] [0 ] [g](x0) = [0 -& -&]x0 + [-&] [1 -& 1 ] [1 ], [0 -& 0 ] [f](x0) = [-& -& 0 ]x0 [-& -& 0 ] , [0 -& 0 ] [0 ] [e](x0) = [-& -& 0 ]x0 + [-&] [0 -& 0 ] [0 ], [0 0 0] [1] [d](x0) = [1 1 1]x0 + [1] [1 1 1] [1], [0 -& 0 ] [-&] [c](x0) = [0 0 1 ]x0 + [0 ] [1 -& 0 ] [1 ], [1 -& 0 ] [1] [a](x0) = [1 -& 0 ]x0 + [1] [1 -& 0 ] [1], [0 -& 0 ] [0 ] [b](x0) = [-& -& 0 ]x0 + [-&] [-& -& 0 ] [-&] orientation: d#(x1) = [0 0 1]x1 + [0] >= [0 -& 1 ]x1 + [0] = c#(e(x1)) c#(c(x1)) = [1 1 2]x1 + [1] >= [0 -& 1 ]x1 + [0] = d#(b(x1)) [1 -& 1 ] [1] [0 -& 0 ] [0] a(b(x1)) = [1 -& 1 ]x1 + [1] >= [0 -& 1 ]x1 + [0] = c(b(x1)) [1 -& 1 ] [1] [1 -& 1 ] [1] [1 -& 0 ] [1] [0 -& 0 ] [1] c(c(x1)) = [2 0 1 ]x1 + [2] >= [1 -& 1 ]x1 + [1] = d(b(x1)) [1 -& 1 ] [1] [1 -& 1 ] [1] [0 0 0] [1] [0 -& 0 ] [0] d(x1) = [1 1 1]x1 + [1] >= [1 -& 1 ]x1 + [1] = c(e(x1)) [1 1 1] [1] [1 -& 1 ] [1] [0 -& 0 ] [0 ] [0 -& 0 ] b(b(x1)) = [-& -& 0 ]x1 + [-&] >= [-& -& 0 ]x1 = f(x1) [-& -& 0 ] [-&] [-& -& 0 ] [0 -& 0 ] [0] [0 -& 0 ] [0 ] c(b(x1)) = [0 -& 1 ]x1 + [0] >= [0 -& -&]x1 + [-&] = g(x1) [1 -& 1 ] [1] [1 -& 1 ] [1 ] [0 -& 0 ] [0 ] [0 -& 0 ] e(x1) = [-& -& 0 ]x1 + [-&] >= [-& -& 0 ]x1 = f(x1) [0 -& 0 ] [0 ] [-& -& 0 ] [0 -& 0 ] [0 ] [0 -& 0 ] [0 ] e(x1) = [-& -& 0 ]x1 + [-&] >= [-& -& 0 ]x1 + [-&] = b(b(x1)) [0 -& 0 ] [0 ] [-& -& 0 ] [-&] [1 -& 1 ] [1] [1 -& 1 ] [1] f(g(x1)) = [1 -& 1 ]x1 + [1] >= [1 -& 1 ]x1 + [1] = a(c(x1)) [1 -& 1 ] [1] [1 -& 1 ] [1] [0 -& 0 ] [0 ] [0 -& 0 ] [0 ] g(f(x1)) = [0 -& 0 ]x1 + [-&] >= [-& -& 0 ]x1 + [-&] = e(x1) [1 -& 1 ] [1 ] [0 -& 0 ] [0 ] [1 -& 0 ] [1] [1 -& 0 ] [1] a(x1) = [1 -& 0 ]x1 + [1] >= [1 -& 0 ]x1 + [1] = b(c(x1)) [1 -& 0 ] [1] [1 -& 0 ] [1] problem: DPs: d#(x1) -> c#(e(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Restore Modifier: DPs: d#(x1) -> c#(e(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) EDG Processor: DPs: d#(x1) -> c#(e(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) graph: Qed DPs: b#(b(x1)) -> f#(x1) f#(g(x1)) -> a#(c(x1)) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Arctic Interpretation Processor: dimension: 4 usable rules: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) interpretation: [f#](x0) = [0 0 0 0]x0 + [0], [b#](x0) = [1 0 0 -&]x0 + [0], [a#](x0) = [1 1 0 1]x0 + [1], [0 0 0 0 ] [0] [-& 0 0 0 ] [0] [g](x0) = [1 1 1 1 ]x0 + [1] [0 0 0 0 ] [0], [0 0 0 0] [0 0 0 0] [f](x0) = [0 0 0 0]x0 [0 0 0 0] , [0 0 0 0] [0] [0 0 0 0] [0] [e](x0) = [0 0 0 0]x0 + [0] [0 0 0 0] [0], [0 0 0 0] [0] [0 0 0 0] [0] [d](x0) = [1 1 1 1]x0 + [1] [0 0 0 0] [0], [0 0 -& 0 ] [-&] [0 0 0 0 ] [-&] [c](x0) = [1 0 0 1 ]x0 + [1 ] [-& 0 0 0 ] [0 ], [1 1 0 1] [1] [1 0 0 1] [1] [a](x0) = [1 0 0 1]x0 + [1] [1 1 0 1] [1], [0 0 0 0 ] [0 ] [0 0 0 0 ] [0 ] [b](x0) = [0 0 0 0 ]x0 + [0 ] [-& 0 0 0 ] [-&] orientation: b#(b(x1)) = [1 1 1 1]x1 + [1] >= [0 0 0 0]x1 + [0] = f#(x1) f#(g(x1)) = [1 1 1 1]x1 + [1] >= [1 1 1 1]x1 + [1] = a#(c(x1)) a#(x1) = [1 1 0 1]x1 + [1] >= [1 1 0 1]x1 + [1] = b#(c(x1)) [1 1 1 1] [1] [0 0 0 0] [0] [1 1 1 1] [1] [0 0 0 0] [0] a(b(x1)) = [1 1 1 1]x1 + [1] >= [1 1 1 1]x1 + [1] = c(b(x1)) [1 1 1 1] [1] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] [1 0 0 1] [1] [0 0 0 0] [0] c(c(x1)) = [1 1 1 1]x1 + [1] >= [1 1 1 1]x1 + [1] = d(b(x1)) [1 0 0 1] [1] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] d(x1) = [1 1 1 1]x1 + [1] >= [1 1 1 1]x1 + [1] = c(e(x1)) [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0 0 0 0] [0] [0 0 0 0] b(b(x1)) = [0 0 0 0]x1 + [0] >= [0 0 0 0]x1 = f(x1) [0 0 0 0] [0] [0 0 0 0] [0 0 0 0] [0] [0 0 0 0 ] [0] [0 0 0 0] [0] [-& 0 0 0 ] [0] c(b(x1)) = [1 1 1 1]x1 + [1] >= [1 1 1 1 ]x1 + [1] = g(x1) [0 0 0 0] [0] [0 0 0 0 ] [0] [0 0 0 0] [0] [0 0 0 0] [0 0 0 0] [0] [0 0 0 0] e(x1) = [0 0 0 0]x1 + [0] >= [0 0 0 0]x1 = f(x1) [0 0 0 0] [0] [0 0 0 0] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] e(x1) = [0 0 0 0]x1 + [0] >= [0 0 0 0]x1 + [0] = b(b(x1)) [0 0 0 0] [0] [0 0 0 0] [0] [1 1 1 1] [1] [1 1 1 1] [1] [1 1 1 1] [1] [1 1 1 1] [1] f(g(x1)) = [1 1 1 1]x1 + [1] >= [1 1 1 1]x1 + [1] = a(c(x1)) [1 1 1 1] [1] [1 1 1 1] [1] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] [0 0 0 0] [0] g(f(x1)) = [1 1 1 1]x1 + [1] >= [0 0 0 0]x1 + [0] = e(x1) [0 0 0 0] [0] [0 0 0 0] [0] [1 1 0 1] [1] [1 0 0 1] [1] [1 0 0 1] [1] [1 0 0 1] [1] a(x1) = [1 0 0 1]x1 + [1] >= [1 0 0 1]x1 + [1] = b(c(x1)) [1 1 0 1] [1] [1 0 0 1] [1] problem: DPs: f#(g(x1)) -> a#(c(x1)) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) Restore Modifier: DPs: f#(g(x1)) -> a#(c(x1)) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) EDG Processor: DPs: f#(g(x1)) -> a#(c(x1)) a#(x1) -> b#(c(x1)) TRS: a(b(x1)) -> c(b(x1)) c(c(x1)) -> d(b(x1)) d(x1) -> c(e(x1)) b(b(x1)) -> f(x1) c(b(x1)) -> g(x1) e(x1) -> f(x1) e(x1) -> b(b(x1)) f(g(x1)) -> a(c(x1)) g(f(x1)) -> e(x1) a(x1) -> b(c(x1)) graph: f#(g(x1)) -> a#(c(x1)) -> a#(x1) -> b#(c(x1)) SCC Processor: #sccs: 0 #rules: 0 #arcs: 1/4