YES We show the termination of the TRS R: app(app(times(),x),|0|()) -> |0|() app(app(times(),x),app(s(),y)) -> app(app(plus(),app(app(times(),x),y)),x) app(app(plus(),x),|0|()) -> x app(app(plus(),|0|()),x) -> x app(app(plus(),x),app(s(),y)) -> app(s(),app(app(plus(),x),y)) app(app(plus(),app(s(),x)),y) -> app(s(),app(app(plus(),x),y)) app(app(map(),f),nil()) -> nil() app(app(map(),f),app(app(cons(),x),xs)) -> app(app(cons(),app(f,x)),app(app(map(),f),xs)) app(app(filter(),f),nil()) -> nil() app(app(filter(),f),app(app(cons(),x),xs)) -> app(app(app(app(filter2(),app(f,x)),f),x),xs) app(app(app(app(filter2(),true()),f),x),xs) -> app(app(cons(),x),app(app(filter(),f),xs)) app(app(app(app(filter2(),false()),f),x),xs) -> app(app(filter(),f),xs) Instead we prove termination of the uncurried system: app(cons_0(),y) -> cons_1(y) app(cons_1(x1),y) -> cons_2(x1,y) app(filter_0(),y) -> filter_1(y) app(filter_1(x1),y) -> filter_2(x1,y) app(filter2_0(),y) -> filter2_1(y) app(filter2_1(x1),y) -> filter2_2(x1,y) app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) app(map_0(),y) -> map_1(y) app(map_1(x1),y) -> map_2(x1,y) app(plus_0(),y) -> plus_1(y) app(plus_1(x1),y) -> plus_2(x1,y) app(s_0(),y) -> s_1(y) app(times_0(),y) -> times_1(y) app(times_1(x1),y) -> times_2(x1,y) times_2(x,|0|_0()) -> |0|_0() times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) plus_2(x,|0|_0()) -> x plus_2(|0|_0(),x) -> x plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) plus_2(s_1(x),y) -> s_1(plus_2(x,y)) map_2(f,nil_0()) -> nil_0() map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) filter_2(f,nil_0()) -> nil_0() filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: app#(filter_1(x1),y) -> filter_2#(x1,y) p2: app#(filter2_3(x1,x2,x3),y) -> filter2_4#(x1,x2,x3,y) p3: app#(map_1(x1),y) -> map_2#(x1,y) p4: app#(plus_1(x1),y) -> plus_2#(x1,y) p5: app#(times_1(x1),y) -> times_2#(x1,y) p6: times_2#(x,s_1(y)) -> plus_2#(times_2(x,y),x) p7: times_2#(x,s_1(y)) -> times_2#(x,y) p8: plus_2#(x,s_1(y)) -> plus_2#(x,y) p9: plus_2#(s_1(x),y) -> plus_2#(x,y) p10: map_2#(f,cons_2(x,xs)) -> app#(f,x) p11: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p12: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p13: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p14: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) p15: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p1, p2, p3, p10, p11, p12, p13, p14, p15} {p7} {p8, p9} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: app#(filter_1(x1),y) -> filter_2#(x1,y) p2: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p3: app#(map_1(x1),y) -> map_2#(x1,y) p4: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p5: map_2#(f,cons_2(x,xs)) -> app#(f,x) p6: app#(filter2_3(x1,x2,x3),y) -> filter2_4#(x1,x2,x3,y) p7: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p8: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p9: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: app#_A(x1,x2) = max{4, x1} filter_1_A(x1) = x1 + 25 filter_2#_A(x1,x2) = x1 + 24 cons_2_A(x1,x2) = max{3, x1 - 35, x2 - 35} map_1_A(x1) = max{7, x1 + 6} map_2#_A(x1,x2) = max{7, x1 + 5} filter2_3_A(x1,x2,x3) = max{x1 + 24, x2 + 25, x3 + 24} filter2_4#_A(x1,x2,x3,x4) = x2 + 24 false_0_A = 16 app_A(x1,x2) = max{21, x1 - 26} true_0_A = 1 filter_2_A(x1,x2) = max{20, x1 - 44, x2 - 17} nil_0_A = 7 base order 2: precedence: map_1 = map_2# = nil_0 > app# = filter2_3 = app = filter_2 > filter_1 = cons_2 = false_0 > true_0 > filter_2# = filter2_4# partial status: pi(app#) = [1] pi(filter_1) = [1] pi(filter_2#) = [] pi(cons_2) = [] pi(map_1) = [1] pi(map_2#) = [1] pi(filter2_3) = [] pi(filter2_4#) = [] pi(false_0) = [] pi(app) = [] pi(true_0) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p2: app#(map_1(x1),y) -> map_2#(x1,y) p3: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p4: map_2#(f,cons_2(x,xs)) -> app#(f,x) p5: app#(filter2_3(x1,x2,x3),y) -> filter2_4#(x1,x2,x3,y) p6: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p7: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p8: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p1, p2, p3, p4, p5, p6, p7, p8} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p2: app#(filter2_3(x1,x2,x3),y) -> filter2_4#(x1,x2,x3,y) p3: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) p4: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p5: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p6: app#(map_1(x1),y) -> map_2#(x1,y) p7: map_2#(f,cons_2(x,xs)) -> app#(f,x) p8: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r3, r5, r6, r9, r11, r13, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: filter_2#_A(x1,x2) = x1 + 5 cons_2_A(x1,x2) = max{14, x2 - 25} app#_A(x1,x2) = max{4, x1 - 1} filter2_3_A(x1,x2,x3) = max{x1 + 2, x2 + 7, x3 + 2} filter2_4#_A(x1,x2,x3,x4) = x2 + 5 true_0_A = 1 app_A(x1,x2) = max{13, x1 - 23, x2 + 8} false_0_A = 3 map_1_A(x1) = max{9, x1 + 7} map_2#_A(x1,x2) = x1 + 5 cons_0_A = 11 cons_1_A(x1) = max{12, x1 - 1} filter_0_A = 9 filter_1_A(x1) = max{10, x1 - 77} filter2_0_A = 10 filter2_1_A(x1) = max{11, x1 - 1} filter2_2_A(x1,x2) = max{12, x1 - 25, x2 - 1} map_0_A = 8 plus_0_A = 1 plus_1_A(x1) = max{9, x1 - 1} s_0_A = 8 s_1_A(x1) = max{9, x1 - 36} times_0_A = 10 times_1_A(x1) = max{11, x1 - 1} filter_2_A(x1,x2) = max{11, x1 - 77, x2 - 15} nil_0_A = 10 base order 2: precedence: map_2# > app# > filter_2# = filter2_4# = app > map_1 > cons_2 = filter2_3 = cons_0 = map_0 = times_1 = filter_2 > true_0 = false_0 = cons_1 = filter_1 = filter2_2 = plus_1 = s_1 = times_0 = nil_0 > filter_0 = filter2_1 = plus_0 = s_0 > filter2_0 partial status: pi(filter_2#) = [1] pi(cons_2) = [] pi(app#) = [] pi(filter2_3) = [2, 3] pi(filter2_4#) = [2] pi(true_0) = [] pi(app) = [] pi(false_0) = [] pi(map_1) = [1] pi(map_2#) = [1] pi(cons_0) = [] pi(cons_1) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(map_0) = [] pi(plus_0) = [] pi(plus_1) = [] pi(s_0) = [] pi(s_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p2 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: filter_2#(f,cons_2(x,xs)) -> app#(f,x) p2: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) p3: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p4: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p5: app#(map_1(x1),y) -> map_2#(x1,y) p6: map_2#(f,cons_2(x,xs)) -> app#(f,x) p7: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p2, p3, p4} {p5, p6, p7} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: filter2_4#(false_0(),f,x,xs) -> filter_2#(f,xs) p2: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p3: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r2, r3, r5, r6, r7, r9, r11, r13, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: filter2_4#_A(x1,x2,x3,x4) = max{14, x3 + 3, x4 + 12} false_0_A = 36 filter_2#_A(x1,x2) = x2 + 11 cons_2_A(x1,x2) = max{60, x1 + 4, x2 + 13} app_A(x1,x2) = max{34, x1 + 15, x2 + 15} true_0_A = 16 cons_0_A = 47 cons_1_A(x1) = max{61, x1 + 14} filter_0_A = 1 filter_1_A(x1) = max{34, x1 - 29} filter2_0_A = 1 filter2_1_A(x1) = max{17, x1 - 16} filter2_2_A(x1,x2) = max{33, x1 - 17, x2 - 16} filter2_3_A(x1,x2,x3) = max{46, x1 - 51, x2 - 30, x3 - 16} map_0_A = 63 map_1_A(x1) = max{62, x1 - 30} plus_0_A = 1 plus_1_A(x1) = max{17, x1 - 35} s_0_A = 1 s_1_A(x1) = max{17, x1 - 36} times_0_A = 1 times_1_A(x1) = max{21, x1 - 16} filter_2_A(x1,x2) = max{48, x2 - 25} nil_0_A = 1 base order 2: precedence: cons_2 > app = map_0 > cons_1 = filter_1 = filter2_3 = map_1 = filter_2 > false_0 = cons_0 = filter_0 = filter2_2 = times_1 = nil_0 > filter2_4# = filter_2# = filter2_1 = plus_1 = s_1 = times_0 > true_0 = filter2_0 = plus_0 = s_0 partial status: pi(filter2_4#) = [] pi(false_0) = [] pi(filter_2#) = [2] pi(cons_2) = [1, 2] pi(app) = [1, 2] pi(true_0) = [] pi(cons_0) = [] pi(cons_1) = [1] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(map_0) = [] pi(map_1) = [] pi(plus_0) = [] pi(plus_1) = [] pi(s_0) = [] pi(s_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p2: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p1, p2} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: filter_2#(f,cons_2(x,xs)) -> filter2_4#(app(f,x),f,x,xs) p2: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r2, r3, r5, r6, r7, r9, r11, r13, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: filter_2#_A(x1,x2) = max{2, x2 + 1} cons_2_A(x1,x2) = max{14, x1 + 3, x2 + 3} filter2_4#_A(x1,x2,x3,x4) = max{x3 + 3, x4 + 3} app_A(x1,x2) = max{16, x1 - 5, x2 + 10} true_0_A = 11 cons_0_A = 3 cons_1_A(x1) = x1 + 9 filter_0_A = 4 filter_1_A(x1) = max{15, x1 - 1} filter2_0_A = 1 filter2_1_A(x1) = max{2, x1 - 1} filter2_2_A(x1,x2) = max{3, x1 - 7, x2 - 1} filter2_3_A(x1,x2,x3) = max{4, x1 - 13, x2 - 7, x3 - 1} map_0_A = 1 map_1_A(x1) = max{2, x1 - 1} plus_0_A = 3 plus_1_A(x1) = max{4, x1 - 6} s_0_A = 4 s_1_A(x1) = max{9, x1 - 24} times_0_A = 3 times_1_A(x1) = max{4, x1 - 1} filter_2_A(x1,x2) = max{12, x1 - 25} nil_0_A = 4 base order 2: precedence: app > filter_1 = filter2_3 > cons_2 = filter_0 = filter2_2 = times_1 = filter_2 > filter_2# = filter2_4# = cons_1 = filter2_1 = map_1 = plus_1 = s_1 = times_0 = nil_0 > true_0 = cons_0 = filter2_0 = map_0 = plus_0 = s_0 partial status: pi(filter_2#) = [2] pi(cons_2) = [2] pi(filter2_4#) = [] pi(app) = [2] pi(true_0) = [] pi(cons_0) = [] pi(cons_1) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(map_0) = [] pi(map_1) = [] pi(plus_0) = [] pi(plus_1) = [] pi(s_0) = [] pi(s_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: filter2_4#(true_0(),f,x,xs) -> filter_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: (no SCCs) -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: app#(map_1(x1),y) -> map_2#(x1,y) p2: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) p3: map_2#(f,cons_2(x,xs)) -> app#(f,x) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r3, r5, r6, r7, r11, r13, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: app#_A(x1,x2) = max{9, x1 - 8} map_1_A(x1) = x1 + 19 map_2#_A(x1,x2) = x1 + 10 cons_2_A(x1,x2) = max{3, x1 - 21, x2 - 21} app_A(x1,x2) = max{6, x1 - 36, x2 - 48} cons_0_A = 1 cons_1_A(x1) = max{2, x1 - 49} filter_0_A = 4 filter_1_A(x1) = max{5, x1 - 49} filter2_0_A = 2 filter2_1_A(x1) = max{3, x1 - 49} filter2_2_A(x1,x2) = max{4, x1 - 86, x2 - 49} filter2_3_A(x1,x2,x3) = max{5, x1 - 123, x2 - 86, x3 - 49} plus_0_A = 1 plus_1_A(x1) = max{2, x1 - 48} s_0_A = 2 s_1_A(x1) = max{3, x1 - 87} times_0_A = 3 times_1_A(x1) = max{4, x1 - 49} filter_2_A(x1,x2) = max{7, x1 - 23, x2 - 26} nil_0_A = 0 base order 2: precedence: map_2# > map_1 = filter_2 = nil_0 > app# = cons_2 = app > cons_0 = filter2_3 > cons_1 = filter_1 = filter2_0 = filter2_2 = plus_1 = s_1 = times_1 > filter_0 = filter2_1 = plus_0 = s_0 = times_0 partial status: pi(app#) = [] pi(map_1) = [1] pi(map_2#) = [1] pi(cons_2) = [] pi(app) = [] pi(cons_0) = [] pi(cons_1) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(plus_0) = [] pi(plus_1) = [] pi(s_0) = [] pi(s_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p3 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: app#(map_1(x1),y) -> map_2#(x1,y) p2: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p2} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: map_2#(f,cons_2(x,xs)) -> map_2#(f,xs) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r3, r5, r6, r7, r9, r11, r13, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: map_2#_A(x1,x2) = max{x1 + 5, x2 + 24} cons_2_A(x1,x2) = max{3, x1 - 19, x2 + 1} app_A(x1,x2) = max{18, x1 - 3, x2 - 23} cons_0_A = 1 cons_1_A(x1) = max{2, x1 - 24} filter_0_A = 1 filter_1_A(x1) = max{2, x1 - 24} filter2_0_A = 1 filter2_1_A(x1) = max{0, x1 - 24} filter2_2_A(x1,x2) = max{0, x1 - 28, x2 - 24} filter2_3_A(x1,x2,x3) = max{0, x1 - 32, x2 - 28, x3 - 24} map_0_A = 1 map_1_A(x1) = max{2, x1 - 24} plus_0_A = 1 plus_1_A(x1) = max{2, x1 - 24} s_0_A = 1 s_1_A(x1) = max{2, x1 - 28} times_0_A = 1 times_1_A(x1) = max{2, x1 - 23} filter_2_A(x1,x2) = max{18, x1 - 3, x2 - 4} nil_0_A = 0 base order 2: precedence: filter_2 > map_2# = app > cons_2 = filter_1 > cons_1 = filter_0 = filter2_3 = map_1 = times_1 = nil_0 > cons_0 = filter2_2 = map_0 = plus_1 = s_1 = times_0 > filter2_1 = plus_0 = s_0 > filter2_0 partial status: pi(map_2#) = [2] pi(cons_2) = [2] pi(app) = [] pi(cons_0) = [] pi(cons_1) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(map_0) = [] pi(map_1) = [] pi(plus_0) = [] pi(plus_1) = [] pi(s_0) = [] pi(s_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 Then no dependency pair remains. -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: times_2#(x,s_1(y)) -> times_2#(x,y) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r2, r3, r5, r6, r7, r9, r11, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: times_2#_A(x1,x2) = max{x1 + 26, x2 + 25} s_1_A(x1) = x1 + 24 app_A(x1,x2) = max{6, x1 - 7, x2 - 15} cons_1_A(x1) = max{2, x1 - 1} cons_2_A(x1,x2) = max{3, x1 - 9, x2 - 17} filter_0_A = 4 filter_1_A(x1) = max{5, x1 - 16} filter2_0_A = 3 filter2_1_A(x1) = max{4, x1 - 16} filter2_2_A(x1,x2) = max{5, x1 - 24, x2 - 16} filter2_3_A(x1,x2,x3) = max{6, x1 - 31, x2 - 23, x3 - 15} map_0_A = 5 map_1_A(x1) = max{6, x1 - 15} plus_0_A = 1 plus_1_A(x1) = max{2, x1 - 16} times_0_A = 3 times_1_A(x1) = max{4, x1 - 15} filter_2_A(x1,x2) = max{15, x1 - 6, x2 - 5} nil_0_A = 0 base order 2: precedence: filter_2 > app > cons_2 > times_2# = cons_1 = nil_0 > s_1 = filter_1 = filter2_3 = map_1 = plus_1 = times_1 > filter_0 = filter2_2 = map_0 = plus_0 = times_0 > filter2_1 > filter2_0 partial status: pi(times_2#) = [2] pi(s_1) = [1] pi(app) = [] pi(cons_1) = [] pi(cons_2) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(map_0) = [] pi(map_1) = [] pi(plus_0) = [] pi(plus_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 Then no dependency pair remains. -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: plus_2#(x,s_1(y)) -> plus_2#(x,y) p2: plus_2#(s_1(x),y) -> plus_2#(x,y) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r2, r3, r5, r6, r7, r9, r11, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: plus_2#_A(x1,x2) = max{x1 + 2, x2 + 3} s_1_A(x1) = max{6, x1 + 2} app_A(x1,x2) = max{64, x1 - 8, x2 - 1} cons_0_A = 7 cons_1_A(x1) = max{6, x1 - 2} cons_2_A(x1,x2) = max{30, x1 - 98, x2 - 33} filter_0_A = 6 filter_1_A(x1) = max{7, x1 - 28} filter2_0_A = 4 filter2_1_A(x1) = max{5, x1 - 2} filter2_2_A(x1,x2) = max{6, x1 - 11, x2 - 2} filter2_3_A(x1,x2,x3) = max{7, x1 - 19, x2 - 11, x3 - 1} map_0_A = 6 map_1_A(x1) = max{7, x1 - 2} plus_0_A = 1 plus_1_A(x1) = max{2, x1 - 2} times_0_A = 6 times_1_A(x1) = max{7, x1 - 2} filter_2_A(x1,x2) = max{35, x1 - 37, x2 - 31} nil_0_A = 0 base order 2: precedence: app > plus_2# = filter2_3 > s_1 = cons_2 = filter2_2 = map_1 = times_1 = filter_2 > cons_1 = filter_1 = filter2_1 = map_0 = plus_1 = times_0 > cons_0 = filter_0 = filter2_0 = plus_0 = nil_0 partial status: pi(plus_2#) = [1, 2] pi(s_1) = [1] pi(app) = [] pi(cons_0) = [] pi(cons_1) = [] pi(cons_2) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(map_0) = [] pi(map_1) = [] pi(plus_0) = [] pi(plus_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: plus_2#(s_1(x),y) -> plus_2#(x,y) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The estimated dependency graph contains the following SCCs: {p1} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: plus_2#(s_1(x),y) -> plus_2#(x,y) and R consists of: r1: app(cons_0(),y) -> cons_1(y) r2: app(cons_1(x1),y) -> cons_2(x1,y) r3: app(filter_0(),y) -> filter_1(y) r4: app(filter_1(x1),y) -> filter_2(x1,y) r5: app(filter2_0(),y) -> filter2_1(y) r6: app(filter2_1(x1),y) -> filter2_2(x1,y) r7: app(filter2_2(x1,x2),y) -> filter2_3(x1,x2,y) r8: app(filter2_3(x1,x2,x3),y) -> filter2_4(x1,x2,x3,y) r9: app(map_0(),y) -> map_1(y) r10: app(map_1(x1),y) -> map_2(x1,y) r11: app(plus_0(),y) -> plus_1(y) r12: app(plus_1(x1),y) -> plus_2(x1,y) r13: app(s_0(),y) -> s_1(y) r14: app(times_0(),y) -> times_1(y) r15: app(times_1(x1),y) -> times_2(x1,y) r16: times_2(x,|0|_0()) -> |0|_0() r17: times_2(x,s_1(y)) -> plus_2(times_2(x,y),x) r18: plus_2(x,|0|_0()) -> x r19: plus_2(|0|_0(),x) -> x r20: plus_2(x,s_1(y)) -> s_1(plus_2(x,y)) r21: plus_2(s_1(x),y) -> s_1(plus_2(x,y)) r22: map_2(f,nil_0()) -> nil_0() r23: map_2(f,cons_2(x,xs)) -> cons_2(app(f,x),map_2(f,xs)) r24: filter_2(f,nil_0()) -> nil_0() r25: filter_2(f,cons_2(x,xs)) -> filter2_4(app(f,x),f,x,xs) r26: filter2_4(true_0(),f,x,xs) -> cons_2(x,filter_2(f,xs)) r27: filter2_4(false_0(),f,x,xs) -> filter_2(f,xs) The set of usable rules consists of r1, r2, r3, r5, r6, r7, r9, r11, r14, r24 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: max/plus interpretation on natural numbers: plus_2#_A(x1,x2) = max{x1 + 11, x2 + 12} s_1_A(x1) = max{10, x1 + 1} app_A(x1,x2) = max{12, x1 - 13, x2 - 1} cons_0_A = 1 cons_1_A(x1) = max{2, x1 - 30} cons_2_A(x1,x2) = max{3, x1 - 44, x2 - 50} filter_0_A = 8 filter_1_A(x1) = max{9, x1 - 42} filter2_0_A = 10 filter2_1_A(x1) = max{11, x1 - 2} filter2_2_A(x1,x2) = max{12, x1 - 15, x2 - 1} filter2_3_A(x1,x2,x3) = max{10, x1 - 28, x2 - 14, x3 - 1} map_0_A = 1 map_1_A(x1) = max{2, x1 - 2} plus_0_A = 1 plus_1_A(x1) = max{2, x1 - 2} times_0_A = 9 times_1_A(x1) = max{10, x1 - 2} filter_2_A(x1,x2) = max{10, x1 - 56, x2 - 42} nil_0_A = 0 base order 2: precedence: app > plus_2# = cons_2 = plus_0 > s_1 = cons_1 = filter_0 = filter2_3 = map_1 = plus_1 = times_1 = filter_2 = nil_0 > cons_0 = filter_1 = filter2_2 = map_0 = times_0 > filter2_1 > filter2_0 partial status: pi(plus_2#) = [1] pi(s_1) = [1] pi(app) = [] pi(cons_0) = [] pi(cons_1) = [] pi(cons_2) = [] pi(filter_0) = [] pi(filter_1) = [] pi(filter2_0) = [] pi(filter2_1) = [] pi(filter2_2) = [] pi(filter2_3) = [] pi(map_0) = [] pi(map_1) = [] pi(plus_0) = [] pi(plus_1) = [] pi(times_0) = [] pi(times_1) = [] pi(filter_2) = [] pi(nil_0) = [] The following rules are removed: p1 Then no dependency pair remains.