9.54/9.41 MAYBE 9.54/9.41 9.54/9.41 DP problem for innermost termination. 9.54/9.41 P = 9.54/9.41 f8#(x1, x2, x3, x4) -> f7#(x1, x2, x3, x4) 9.54/9.41 f7#(I0, I1, I2, I3) -> f2#(I0, I1, I0, I1) 9.54/9.41 f4#(I4, I5, I6, I7) -> f5#(I4, I5, I6, I7) [I5 <= I4 /\ I4 <= I5] 9.54/9.41 f4#(I8, I9, I10, I11) -> f5#(I8, I9, I10, I11) [1 + I8 <= I9] 9.54/9.41 f4#(I12, I13, I14, I15) -> f5#(I12, I13, I14, I15) [1 + I13 <= I12] 9.54/9.41 f2#(I20, I21, I22, I23) -> f3#(I20, I21, I22, I23) 9.54/9.41 f3#(I24, I25, I26, I27) -> f1#(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 f3#(I28, I29, I30, I31) -> f1#(I28, I29, I30, I31) [1 <= I30] 9.54/9.41 f3#(I32, I33, I34, I35) -> f4#(I32, I33, I34, I35) [0 <= I34 /\ I34 <= 0] 9.54/9.41 f1#(I36, I37, I38, I39) -> f2#(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 R = 9.54/9.41 f8(x1, x2, x3, x4) -> f7(x1, x2, x3, x4) 9.54/9.41 f7(I0, I1, I2, I3) -> f2(I0, I1, I0, I1) 9.54/9.41 f4(I4, I5, I6, I7) -> f5(I4, I5, I6, I7) [I5 <= I4 /\ I4 <= I5] 9.54/9.41 f4(I8, I9, I10, I11) -> f5(I8, I9, I10, I11) [1 + I8 <= I9] 9.54/9.41 f4(I12, I13, I14, I15) -> f5(I12, I13, I14, I15) [1 + I13 <= I12] 9.54/9.41 f5(I16, I17, I18, I19) -> f6(I16, I17, I18, I19) 9.54/9.41 f2(I20, I21, I22, I23) -> f3(I20, I21, I22, I23) 9.54/9.41 f3(I24, I25, I26, I27) -> f1(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 f3(I28, I29, I30, I31) -> f1(I28, I29, I30, I31) [1 <= I30] 9.54/9.41 f3(I32, I33, I34, I35) -> f4(I32, I33, I34, I35) [0 <= I34 /\ I34 <= 0] 9.54/9.41 f1(I36, I37, I38, I39) -> f2(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 9.54/9.41 The dependency graph for this problem is: 9.54/9.41 0 -> 1 9.54/9.41 1 -> 5 9.54/9.41 2 -> 9.54/9.41 3 -> 9.54/9.41 4 -> 9.54/9.41 5 -> 6, 7, 8 9.54/9.41 6 -> 9 9.54/9.41 7 -> 9 9.54/9.41 8 -> 2, 3, 4 9.54/9.41 9 -> 5 9.54/9.41 Where: 9.54/9.41 0) f8#(x1, x2, x3, x4) -> f7#(x1, x2, x3, x4) 9.54/9.41 1) f7#(I0, I1, I2, I3) -> f2#(I0, I1, I0, I1) 9.54/9.41 2) f4#(I4, I5, I6, I7) -> f5#(I4, I5, I6, I7) [I5 <= I4 /\ I4 <= I5] 9.54/9.41 3) f4#(I8, I9, I10, I11) -> f5#(I8, I9, I10, I11) [1 + I8 <= I9] 9.54/9.41 4) f4#(I12, I13, I14, I15) -> f5#(I12, I13, I14, I15) [1 + I13 <= I12] 9.54/9.41 5) f2#(I20, I21, I22, I23) -> f3#(I20, I21, I22, I23) 9.54/9.41 6) f3#(I24, I25, I26, I27) -> f1#(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 7) f3#(I28, I29, I30, I31) -> f1#(I28, I29, I30, I31) [1 <= I30] 9.54/9.41 8) f3#(I32, I33, I34, I35) -> f4#(I32, I33, I34, I35) [0 <= I34 /\ I34 <= 0] 9.54/9.41 9) f1#(I36, I37, I38, I39) -> f2#(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 9.54/9.41 We have the following SCCs. 9.54/9.41 { 5, 6, 7, 9 } 9.54/9.41 9.54/9.41 DP problem for innermost termination. 9.54/9.41 P = 9.54/9.41 f2#(I20, I21, I22, I23) -> f3#(I20, I21, I22, I23) 9.54/9.41 f3#(I24, I25, I26, I27) -> f1#(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 f3#(I28, I29, I30, I31) -> f1#(I28, I29, I30, I31) [1 <= I30] 9.54/9.41 f1#(I36, I37, I38, I39) -> f2#(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 R = 9.54/9.41 f8(x1, x2, x3, x4) -> f7(x1, x2, x3, x4) 9.54/9.41 f7(I0, I1, I2, I3) -> f2(I0, I1, I0, I1) 9.54/9.41 f4(I4, I5, I6, I7) -> f5(I4, I5, I6, I7) [I5 <= I4 /\ I4 <= I5] 9.54/9.41 f4(I8, I9, I10, I11) -> f5(I8, I9, I10, I11) [1 + I8 <= I9] 9.54/9.41 f4(I12, I13, I14, I15) -> f5(I12, I13, I14, I15) [1 + I13 <= I12] 9.54/9.41 f5(I16, I17, I18, I19) -> f6(I16, I17, I18, I19) 9.54/9.41 f2(I20, I21, I22, I23) -> f3(I20, I21, I22, I23) 9.54/9.41 f3(I24, I25, I26, I27) -> f1(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 f3(I28, I29, I30, I31) -> f1(I28, I29, I30, I31) [1 <= I30] 9.54/9.41 f3(I32, I33, I34, I35) -> f4(I32, I33, I34, I35) [0 <= I34 /\ I34 <= 0] 9.54/9.41 f1(I36, I37, I38, I39) -> f2(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 9.54/9.41 We use the extended value criterion with the projection function NU: 9.54/9.41 NU[f1#(x0,x1,x2,x3)] = x2 - 2 9.54/9.41 NU[f3#(x0,x1,x2,x3)] = x2 - 1 9.54/9.41 NU[f2#(x0,x1,x2,x3)] = x2 - 1 9.54/9.41 9.54/9.41 This gives the following inequalities: 9.54/9.41 ==> I22 - 1 >= I22 - 1 9.54/9.41 1 + I26 <= 0 ==> I26 - 1 >= I26 - 2 9.54/9.41 1 <= I30 ==> I30 - 1 > I30 - 2 with I30 - 1 >= 0 9.54/9.41 ==> I38 - 2 >= (-1 + I38) - 1 9.54/9.41 9.54/9.41 We remove all the strictly oriented dependency pairs. 9.54/9.41 9.54/9.41 DP problem for innermost termination. 9.54/9.41 P = 9.54/9.41 f2#(I20, I21, I22, I23) -> f3#(I20, I21, I22, I23) 9.54/9.41 f3#(I24, I25, I26, I27) -> f1#(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 f1#(I36, I37, I38, I39) -> f2#(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 R = 9.54/9.41 f8(x1, x2, x3, x4) -> f7(x1, x2, x3, x4) 9.54/9.41 f7(I0, I1, I2, I3) -> f2(I0, I1, I0, I1) 9.54/9.41 f4(I4, I5, I6, I7) -> f5(I4, I5, I6, I7) [I5 <= I4 /\ I4 <= I5] 9.54/9.41 f4(I8, I9, I10, I11) -> f5(I8, I9, I10, I11) [1 + I8 <= I9] 9.54/9.41 f4(I12, I13, I14, I15) -> f5(I12, I13, I14, I15) [1 + I13 <= I12] 9.54/9.41 f5(I16, I17, I18, I19) -> f6(I16, I17, I18, I19) 9.54/9.41 f2(I20, I21, I22, I23) -> f3(I20, I21, I22, I23) 9.54/9.41 f3(I24, I25, I26, I27) -> f1(I24, I25, I26, I27) [1 + I26 <= 0] 9.54/9.41 f3(I28, I29, I30, I31) -> f1(I28, I29, I30, I31) [1 <= I30] 9.54/9.41 f3(I32, I33, I34, I35) -> f4(I32, I33, I34, I35) [0 <= I34 /\ I34 <= 0] 9.54/9.41 f1(I36, I37, I38, I39) -> f2(I36, I37, -1 + I38, -1 + I39) 9.54/9.41 9.57/12.39 EOF