YES We show the termination of the TRS R: minus_active(|0|(),y) -> |0|() mark(|0|()) -> |0|() minus_active(s(x),s(y)) -> minus_active(x,y) mark(s(x)) -> s(mark(x)) ge_active(x,|0|()) -> true() mark(minus(x,y)) -> minus_active(x,y) ge_active(|0|(),s(y)) -> false() mark(ge(x,y)) -> ge_active(x,y) ge_active(s(x),s(y)) -> ge_active(x,y) mark(div(x,y)) -> div_active(mark(x),y) div_active(|0|(),s(y)) -> |0|() mark(if(x,y,z)) -> if_active(mark(x),y,z) div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) if_active(true(),x,y) -> mark(x) minus_active(x,y) -> minus(x,y) if_active(false(),x,y) -> mark(y) ge_active(x,y) -> ge(x,y) if_active(x,y,z) -> if(x,y,z) div_active(x,y) -> div(x,y) -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: minus_active#(s(x),s(y)) -> minus_active#(x,y) p2: mark#(s(x)) -> mark#(x) p3: mark#(minus(x,y)) -> minus_active#(x,y) p4: mark#(ge(x,y)) -> ge_active#(x,y) p5: ge_active#(s(x),s(y)) -> ge_active#(x,y) p6: mark#(div(x,y)) -> div_active#(mark(x),y) p7: mark#(div(x,y)) -> mark#(x) p8: mark#(if(x,y,z)) -> if_active#(mark(x),y,z) p9: mark#(if(x,y,z)) -> mark#(x) p10: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p11: div_active#(s(x),s(y)) -> ge_active#(x,y) p12: if_active#(true(),x,y) -> mark#(x) p13: if_active#(false(),x,y) -> mark#(y) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The estimated dependency graph contains the following SCCs: {p2, p6, p7, p8, p9, p10, p12, p13} {p1} {p5} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(if(x,y,z)) -> mark#(x) p3: mark#(if(x,y,z)) -> if_active#(mark(x),y,z) p4: if_active#(true(),x,y) -> mark#(x) p5: mark#(div(x,y)) -> mark#(x) p6: mark#(div(x,y)) -> div_active#(mark(x),y) p7: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p8: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: if_active#_A(x1,x2,x3) = x2 + x3 + 2 false_A() = 0 mark#_A(x1) = x1 + 2 if_A(x1,x2,x3) = x1 + x2 + x3 mark_A(x1) = x1 true_A() = 0 div_A(x1,x2) = x1 + x2 + 3 div_active#_A(x1,x2) = x1 + x2 + 5 s_A(x1) = x1 + 1 ge_active_A(x1,x2) = 0 minus_A(x1,x2) = 0 |0|_A() = 0 minus_active_A(x1,x2) = 0 ge_A(x1,x2) = 0 div_active_A(x1,x2) = x1 + x2 + 3 if_active_A(x1,x2,x3) = x1 + x2 + x3 base order 2: precedence: if_active# = mark# = div_active# > if = mark = minus = minus_active = div_active = if_active > div > s > true = ge_active > false = ge > |0| partial status: pi(if_active#) = [] pi(false) = [] pi(mark#) = [] pi(if) = [] pi(mark) = [] pi(true) = [] pi(div) = [1] pi(div_active#) = [] pi(s) = [] pi(ge_active) = [] pi(minus) = [] pi(|0|) = [] pi(minus_active) = [] pi(ge) = [] pi(div_active) = [] pi(if_active) = [] The following rules are removed: p5 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(if(x,y,z)) -> mark#(x) p3: mark#(if(x,y,z)) -> if_active#(mark(x),y,z) p4: if_active#(true(),x,y) -> mark#(x) p5: mark#(div(x,y)) -> div_active#(mark(x),y) p6: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p7: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The estimated dependency graph contains the following SCCs: {p1, p2, p3, p4, p5, p6, p7} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(s(x)) -> mark#(x) p3: mark#(div(x,y)) -> div_active#(mark(x),y) p4: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p5: if_active#(true(),x,y) -> mark#(x) p6: mark#(if(x,y,z)) -> if_active#(mark(x),y,z) p7: mark#(if(x,y,z)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r5, r7, r11, r15, r17 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: if_active#_A(x1,x2,x3) = x2 + x3 + 2 false_A() = 1 mark#_A(x1) = x1 + 2 s_A(x1) = x1 div_A(x1,x2) = 3 div_active#_A(x1,x2) = 5 mark_A(x1) = x1 + 2 ge_active_A(x1,x2) = x2 + 2 minus_A(x1,x2) = x2 + 6 |0|_A() = 0 true_A() = 1 if_A(x1,x2,x3) = x1 + x2 + x3 + 5 minus_active_A(x1,x2) = x1 + x2 + 7 div_active_A(x1,x2) = 1 ge_A(x1,x2) = 1 base order 2: precedence: minus_active > false = minus = if > s = mark = ge_active = ge > if_active# = mark# = div_active# > div > div_active > |0| > true partial status: pi(if_active#) = [] pi(false) = [] pi(mark#) = [] pi(s) = [1] pi(div) = [] pi(div_active#) = [] pi(mark) = [1] pi(ge_active) = [2] pi(minus) = [] pi(|0|) = [] pi(true) = [] pi(if) = [] pi(minus_active) = [1, 2] pi(div_active) = [] pi(ge) = [] The following rules are removed: p6 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(s(x)) -> mark#(x) p3: mark#(div(x,y)) -> div_active#(mark(x),y) p4: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p5: if_active#(true(),x,y) -> mark#(x) p6: mark#(if(x,y,z)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The estimated dependency graph contains the following SCCs: {p1, p2, p3, p4, p5, p6} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(if(x,y,z)) -> mark#(x) p3: mark#(div(x,y)) -> div_active#(mark(x),y) p4: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p5: if_active#(true(),x,y) -> mark#(x) p6: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r6, r11, r15, r17 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: if_active#_A(x1,x2,x3) = x2 + x3 + 1 false_A() = 4 mark#_A(x1) = x1 + 1 if_A(x1,x2,x3) = x1 + 2 div_A(x1,x2) = x1 + 1 div_active#_A(x1,x2) = 2 mark_A(x1) = 0 s_A(x1) = x1 ge_active_A(x1,x2) = 3 minus_A(x1,x2) = 0 |0|_A() = 0 true_A() = 4 minus_active_A(x1,x2) = 0 div_active_A(x1,x2) = x2 ge_A(x1,x2) = 1 base order 2: precedence: if > if_active# = mark# = div_active# > s > false = div = ge_active > mark = ge > minus_active > minus = div_active > |0| > true partial status: pi(if_active#) = [] pi(false) = [] pi(mark#) = [] pi(if) = [] pi(div) = [] pi(div_active#) = [] pi(mark) = [] pi(s) = [] pi(ge_active) = [] pi(minus) = [] pi(|0|) = [] pi(true) = [] pi(minus_active) = [] pi(div_active) = [2] pi(ge) = [] The following rules are removed: p2 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(div(x,y)) -> div_active#(mark(x),y) p3: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p4: if_active#(true(),x,y) -> mark#(x) p5: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The estimated dependency graph contains the following SCCs: {p1, p2, p3, p4, p5} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(s(x)) -> mark#(x) p3: mark#(div(x,y)) -> div_active#(mark(x),y) p4: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p5: if_active#(true(),x,y) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, r12, r13, r14, r15, r16, r17, r18, r19 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: if_active#_A(x1,x2,x3) = x2 + x3 false_A() = 1 mark#_A(x1) = x1 s_A(x1) = x1 + 3 div_A(x1,x2) = x1 + x2 + 1 div_active#_A(x1,x2) = x1 + x2 + 1 mark_A(x1) = x1 ge_active_A(x1,x2) = 2 minus_A(x1,x2) = x1 |0|_A() = 0 true_A() = 1 minus_active_A(x1,x2) = x1 ge_A(x1,x2) = 2 div_active_A(x1,x2) = x1 + x2 + 1 if_A(x1,x2,x3) = x2 + x3 if_active_A(x1,x2,x3) = x2 + x3 base order 2: precedence: div = div_active > minus = minus_active > div_active# = if = if_active > s = ge_active = ge > if_active# > mark# > true > mark > |0| > false partial status: pi(if_active#) = [2, 3] pi(false) = [] pi(mark#) = [1] pi(s) = [] pi(div) = [2] pi(div_active#) = [] pi(mark) = [1] pi(ge_active) = [] pi(minus) = [] pi(|0|) = [] pi(true) = [] pi(minus_active) = [] pi(ge) = [] pi(div_active) = [2] pi(if) = [2, 3] pi(if_active) = [2, 3] The following rules are removed: p5 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(s(x)) -> mark#(x) p3: mark#(div(x,y)) -> div_active#(mark(x),y) p4: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The estimated dependency graph contains the following SCCs: {p1, p2, p3, p4} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: if_active#(false(),x,y) -> mark#(y) p2: mark#(div(x,y)) -> div_active#(mark(x),y) p3: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p4: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r5, r7, r9, r11, r15, r17, r18 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: if_active#_A(x1,x2,x3) = x3 + 5 false_A() = 3 mark#_A(x1) = x1 + 4 div_A(x1,x2) = x2 + 13 div_active#_A(x1,x2) = 12 mark_A(x1) = 2 s_A(x1) = x1 + 7 ge_active_A(x1,x2) = x1 + x2 + 11 minus_A(x1,x2) = 9 |0|_A() = 1 minus_active_A(x1,x2) = x1 + x2 + 10 true_A() = 3 div_active_A(x1,x2) = x2 + 3 ge_A(x1,x2) = 1 if_active_A(x1,x2,x3) = x2 + 3 if_A(x1,x2,x3) = 1 base order 2: precedence: if_active# > mark# = div = minus_active > s > false = true > mark > ge_active = if_active > div_active = ge = if > minus > div_active# > |0| partial status: pi(if_active#) = [] pi(false) = [] pi(mark#) = [] pi(div) = [] pi(div_active#) = [] pi(mark) = [] pi(s) = [] pi(ge_active) = [] pi(minus) = [] pi(|0|) = [] pi(minus_active) = [2] pi(true) = [] pi(div_active) = [] pi(ge) = [] pi(if_active) = [2] pi(if) = [] The following rules are removed: p1 -- SCC decomposition. Consider the dependency pair problem (P, R), where P consists of p1: mark#(div(x,y)) -> div_active#(mark(x),y) p2: div_active#(s(x),s(y)) -> if_active#(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) p3: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The estimated dependency graph contains the following SCCs: {p3} -- Reduction pair. Consider the dependency pair problem (P, R), where P consists of p1: mark#(s(x)) -> mark#(x) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r5, r7, r9, r11, r15, r17, r18, r19 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: mark#_A(x1) = x1 s_A(x1) = x1 + 6 minus_active_A(x1,x2) = x1 + x2 + 7 |0|_A() = 3 mark_A(x1) = 4 ge_active_A(x1,x2) = x2 + 3 true_A() = 5 false_A() = 5 div_active_A(x1,x2) = x2 + 7 minus_A(x1,x2) = 1 ge_A(x1,x2) = 1 if_active_A(x1,x2,x3) = x2 + 6 if_A(x1,x2,x3) = 5 div_A(x1,x2) = 0 base order 2: precedence: mark# > s = minus_active = div_active = div > true = false = minus > |0| = if > mark = if_active > ge_active = ge partial status: pi(mark#) = [] pi(s) = [] pi(minus_active) = [] pi(|0|) = [] pi(mark) = [] pi(ge_active) = [] pi(true) = [] pi(false) = [] pi(div_active) = [2] pi(minus) = [] pi(ge) = [] pi(if_active) = [2] pi(if) = [] pi(div) = [] 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: minus_active#(s(x),s(y)) -> minus_active#(x,y) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r5, r7, r11, r15, r17, r18, r19 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: minus_active#_A(x1,x2) = x1 + x2 s_A(x1) = x1 + 5 minus_active_A(x1,x2) = x2 + 4 |0|_A() = 3 mark_A(x1) = 8 ge_active_A(x1,x2) = x1 + x2 + 7 true_A() = 9 false_A() = 9 div_active_A(x1,x2) = x2 + 1 minus_A(x1,x2) = 1 ge_A(x1,x2) = 1 if_active_A(x1,x2,x3) = x1 + x2 + 10 if_A(x1,x2,x3) = 9 div_A(x1,x2) = 0 base order 2: precedence: minus_active# = ge_active = if_active > true = false = ge = if > mark = div_active = div > s > minus > minus_active > |0| partial status: pi(minus_active#) = [2] pi(s) = [] pi(minus_active) = [2] pi(|0|) = [] pi(mark) = [] pi(ge_active) = [1, 2] pi(true) = [] pi(false) = [] pi(div_active) = [2] pi(minus) = [] pi(ge) = [] pi(if_active) = [2] pi(if) = [] pi(div) = [] 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: ge_active#(s(x),s(y)) -> ge_active#(x,y) and R consists of: r1: minus_active(|0|(),y) -> |0|() r2: mark(|0|()) -> |0|() r3: minus_active(s(x),s(y)) -> minus_active(x,y) r4: mark(s(x)) -> s(mark(x)) r5: ge_active(x,|0|()) -> true() r6: mark(minus(x,y)) -> minus_active(x,y) r7: ge_active(|0|(),s(y)) -> false() r8: mark(ge(x,y)) -> ge_active(x,y) r9: ge_active(s(x),s(y)) -> ge_active(x,y) r10: mark(div(x,y)) -> div_active(mark(x),y) r11: div_active(|0|(),s(y)) -> |0|() r12: mark(if(x,y,z)) -> if_active(mark(x),y,z) r13: div_active(s(x),s(y)) -> if_active(ge_active(x,y),s(div(minus(x,y),s(y))),|0|()) r14: if_active(true(),x,y) -> mark(x) r15: minus_active(x,y) -> minus(x,y) r16: if_active(false(),x,y) -> mark(y) r17: ge_active(x,y) -> ge(x,y) r18: if_active(x,y,z) -> if(x,y,z) r19: div_active(x,y) -> div(x,y) The set of usable rules consists of r1, r2, r3, r5, r7, r11, r15, r17, r18, r19 Take the reduction pair: generalized weighted path order (>=MG, >MG) base order 1: matrix interpretation with standard point-wise order: carrier: N^1 order: standard order interpretations: ge_active#_A(x1,x2) = x1 + x2 s_A(x1) = x1 + 5 minus_active_A(x1,x2) = x2 + 4 |0|_A() = 3 mark_A(x1) = 8 ge_active_A(x1,x2) = x1 + x2 + 7 true_A() = 9 false_A() = 9 div_active_A(x1,x2) = x2 + 1 minus_A(x1,x2) = 1 ge_A(x1,x2) = 1 if_active_A(x1,x2,x3) = x1 + x2 + 10 if_A(x1,x2,x3) = 9 div_A(x1,x2) = 0 base order 2: precedence: ge_active# = ge_active = if_active > true = false = ge = if > mark = div_active = div > s > minus > minus_active > |0| partial status: pi(ge_active#) = [2] pi(s) = [] pi(minus_active) = [2] pi(|0|) = [] pi(mark) = [] pi(ge_active) = [1, 2] pi(true) = [] pi(false) = [] pi(div_active) = [2] pi(minus) = [] pi(ge) = [] pi(if_active) = [2] pi(if) = [] pi(div) = [] The following rules are removed: p1 Then no dependency pair remains.