Input TRS: 1: app(perfectp(),|0|()) -> false() 2: app(perfectp(),app(s(),x)) -> app(app(app(app(f(),x),app(s(),|0|())),app(s(),x)),app(s(),x)) 3: app(app(app(app(f(),|0|()),y),|0|()),u) -> true() 4: app(app(app(app(f(),|0|()),y),app(s(),z)),u) -> false() 5: app(app(app(app(f(),app(s(),x)),|0|()),z),u) -> app(app(app(app(f(),x),u),app(app(minus(),z),app(s(),x))),u) 6: app(app(app(app(f(),app(s(),x)),app(s(),y)),z),u) -> app(app(app(if(),app(app(le(),x),y)),app(app(app(app(f(),app(s(),x)),app(app(minus(),y),x)),z),u)),app(app(app(app(f(),x),u),z),u)) 7: app(app(map(),|fun|),nil()) -> nil() 8: app(app(map(),|fun|),app(app(cons(),x),xs)) -> app(app(cons(),app(|fun|,x)),app(app(map(),|fun|),xs)) 9: app(app(filter(),|fun|),nil()) -> nil() 10: app(app(filter(),|fun|),app(app(cons(),x),xs)) -> app(app(app(app(filter2(),app(|fun|,x)),|fun|),x),xs) 11: app(app(app(app(filter2(),true()),|fun|),x),xs) -> app(app(cons(),x),app(app(filter(),|fun|),xs)) 12: app(app(app(app(filter2(),false()),|fun|),x),xs) -> app(app(filter(),|fun|),xs) Number of strict rules: 12 Direct Order(PosReal,>,Poly) ... failed. Freezing app 1: app❆1_perfectp(|0|()) -> false() 2: app❆1_perfectp(app❆1_s(x)) -> app❆4_f(x,app❆1_s(|0|()),app❆1_s(x),app❆1_s(x)) 3: app❆4_f(|0|(),y,|0|(),u) -> true() 4: app❆4_f(|0|(),y,app❆1_s(z),u) -> false() 5: app❆4_f(app❆1_s(x),|0|(),z,u) -> app❆4_f(x,u,app❆2_minus(z,app❆1_s(x)),u) 6: app❆4_f(app❆1_s(x),app❆1_s(y),z,u) -> app❆3_if(app❆2_le(x,y),app❆4_f(app❆1_s(x),app❆2_minus(y,x),z,u),app❆4_f(x,u,z,u)) 7: app❆2_map(|fun|,nil()) -> nil() 8: app❆2_map(|fun|,app❆2_cons(x,xs)) -> app❆2_cons(app(|fun|,x),app❆2_map(|fun|,xs)) 9: app❆2_filter(|fun|,nil()) -> nil() 10: app❆2_filter(|fun|,app❆2_cons(x,xs)) -> app❆4_filter2(app(|fun|,x),|fun|,x,xs) 11: app❆4_filter2(true(),|fun|,x,xs) -> app❆2_cons(x,app❆2_filter(|fun|,xs)) 12: app❆4_filter2(false(),|fun|,x,xs) -> app❆2_filter(|fun|,xs) 13: app(le(),_1) ->= app❆1_le(_1) 14: app(app❆1_le(_1),_2) ->= app❆2_le(_1,_2) 15: app(if(),_1) ->= app❆1_if(_1) 16: app(app❆1_if(_1),_2) ->= app❆2_if(_1,_2) 17: app(app❆2_if(_1,_2),_3) ->= app❆3_if(_1,_2,_3) 18: app(cons(),_1) ->= app❆1_cons(_1) 19: app(app❆1_cons(_1),_2) ->= app❆2_cons(_1,_2) 20: app(s(),_1) ->= app❆1_s(_1) 21: app(filter(),_1) ->= app❆1_filter(_1) 22: app(app❆1_filter(_1),_2) ->= app❆2_filter(_1,_2) 23: app(perfectp(),_1) ->= app❆1_perfectp(_1) 24: app(map(),_1) ->= app❆1_map(_1) 25: app(app❆1_map(_1),_2) ->= app❆2_map(_1,_2) 26: app(minus(),_1) ->= app❆1_minus(_1) 27: app(app❆1_minus(_1),_2) ->= app❆2_minus(_1,_2) 28: app(f(),_1) ->= app❆1_f(_1) 29: app(app❆1_f(_1),_2) ->= app❆2_f(_1,_2) 30: app(app❆2_f(_1,_2),_3) ->= app❆3_f(_1,_2,_3) 31: app(app❆3_f(_1,_2,_3),_4) ->= app❆4_f(_1,_2,_3,_4) 32: app(filter2(),_1) ->= app❆1_filter2(_1) 33: app(app❆1_filter2(_1),_2) ->= app❆2_filter2(_1,_2) 34: app(app❆2_filter2(_1,_2),_3) ->= app❆3_filter2(_1,_2,_3) 35: app(app❆3_filter2(_1,_2,_3),_4) ->= app❆4_filter2(_1,_2,_3,_4) Number of strict rules: 12 Direct Order(PosReal,>,Poly) ... failed. Dependency Pairs: #1: #app❆1_perfectp(app❆1_s(x)) -> #app❆4_f(x,app❆1_s(|0|()),app❆1_s(x),app❆1_s(x)) #2: #app(app❆3_filter2(_1,_2,_3),_4) ->? #app❆4_filter2(_1,_2,_3,_4) #3: #app❆4_f(app❆1_s(x),app❆1_s(y),z,u) -> #app❆4_f(app❆1_s(x),app❆2_minus(y,x),z,u) #4: #app❆4_f(app❆1_s(x),app❆1_s(y),z,u) -> #app❆4_f(x,u,z,u) #5: #app❆4_filter2(true(),|fun|,x,xs) -> #app❆2_filter(|fun|,xs) #6: #app(perfectp(),_1) ->? #app❆1_perfectp(_1) #7: #app❆4_filter2(false(),|fun|,x,xs) -> #app❆2_filter(|fun|,xs) #8: #app(app❆3_f(_1,_2,_3),_4) ->? #app❆4_f(_1,_2,_3,_4) #9: #app(app❆1_map(_1),_2) ->? #app❆2_map(_1,_2) #10: #app❆2_filter(|fun|,app❆2_cons(x,xs)) -> #app❆4_filter2(app(|fun|,x),|fun|,x,xs) #11: #app❆2_filter(|fun|,app❆2_cons(x,xs)) -> #app(|fun|,x) #12: #app❆4_f(app❆1_s(x),|0|(),z,u) -> #app❆4_f(x,u,app❆2_minus(z,app❆1_s(x)),u) #13: #app(app❆1_filter(_1),_2) ->? #app❆2_filter(_1,_2) #14: #app❆2_map(|fun|,app❆2_cons(x,xs)) -> #app(|fun|,x) #15: #app❆2_map(|fun|,app❆2_cons(x,xs)) -> #app❆2_map(|fun|,xs) Number of SCCs: 2, DPs: 11, edges: 24 SCC { #4 #12 } Removing DPs: Order(PosReal,>,Sum)... succeeded. |0|() weight: 0 app❆2_minus(x1,x2) weight: (/ 1 2) le() weight: 0 app❆1_le(x1) weight: 0 #app❆2_map(x1,x2) weight: 0 app❆4_f(x1,x2,x3,x4) weight: 0 s() weight: 0 app❆1_map(x1) weight: 0 app❆1_minus(x1) weight: 0 app❆1_if(x1) weight: 0 app❆2_f(x1,x2) weight: 0 minus() weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: 0 app❆2_map(x1,x2) weight: 0 false() weight: 0 app❆2_if(x1,x2) weight: 0 true() weight: 0 f() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: 0 #app❆1_perfectp(x1) weight: 0 app❆2_le(x1,x2) weight: 0 if() weight: 0 app❆1_f(x1) weight: 0 app❆3_f(x1,x2,x3) weight: 0 nil() weight: 0 app❆1_filter(x1) weight: 0 app❆3_if(x1,x2,x3) weight: 0 #app(x1,x2) weight: 0 map() weight: 0 #app❆4_filter2(x1,x2,x3,x4) weight: 0 app❆2_filter2(x1,x2) weight: 0 #app❆2_filter(x1,x2) weight: 0 app❆1_perfectp(x1) weight: 0 cons() weight: 0 app❆2_cons(x1,x2) weight: 0 filter() weight: 0 app❆1_s(x1) weight: (/ 1 2) + x1 #app❆4_f(x1,x2,x3,x4) weight: x1 perfectp() weight: 0 app❆1_filter2(x1) weight: 0 app❆1_cons(x1) weight: 0 app❆3_filter2(x1,x2,x3) weight: 0 app(x1,x2) weight: 0 Usable rules: { } Removed DPs: #4 #12 Number of SCCs: 1, DPs: 9, edges: 20 SCC { #2 #5 #7 #9..11 #13..15 } Removing DPs: Order(PosReal,>,Sum)... succeeded. |0|() weight: 0 app❆2_minus(x1,x2) weight: (/ 3 8) + x1 + x2 le() weight: 0 app❆1_le(x1) weight: (/ 3 16) #app❆2_map(x1,x2) weight: (/ 1 16) + x1 app❆4_f(x1,x2,x3,x4) weight: (/ 3 4) + x1 + x3 + x4 s() weight: 0 app❆1_map(x1) weight: (/ 3 16) + x1 app❆1_minus(x1) weight: (/ 3 16) app❆1_if(x1) weight: (/ 3 16) app❆2_f(x1,x2) weight: (/ 3 8) + x1 minus() weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: (/ 3 4) + x1 app❆2_map(x1,x2) weight: (/ 3 8) false() weight: 0 app❆2_if(x1,x2) weight: (/ 3 8) + x1 true() weight: 0 f() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: (/ 13 16) #app❆1_perfectp(x1) weight: 0 app❆2_le(x1,x2) weight: (/ 3 8) + x1 + x2 if() weight: 0 app❆1_f(x1) weight: (/ 3 16) app❆3_f(x1,x2,x3) weight: (/ 9 16) + x2 nil() weight: 0 app❆1_filter(x1) weight: (/ 3 16) + x1 app❆3_if(x1,x2,x3) weight: (/ 5 8) + x1 #app(x1,x2) weight: x1 map() weight: 0 #app❆4_filter2(x1,x2,x3,x4) weight: (/ 1 16) + x2 app❆2_filter2(x1,x2) weight: (/ 3 8) + x1 #app❆2_filter(x1,x2) weight: (/ 1 16) + x1 app❆1_perfectp(x1) weight: (/ 3 16) + x1 cons() weight: 0 app❆2_cons(x1,x2) weight: (/ 3 8) + x1 + x2 filter() weight: 0 app❆1_s(x1) weight: (/ 3 16) + x1 #app❆4_f(x1,x2,x3,x4) weight: 0 perfectp() weight: 0 app❆1_filter2(x1) weight: (/ 3 16) app❆1_cons(x1) weight: (/ 3 16) app❆3_filter2(x1,x2,x3) weight: (/ 9 16) + x2 + x3 app(x1,x2) weight: (/ 1 8) + x1 + x2 Usable rules: { } Removed DPs: #2 #9 #11 #13 #14 Number of SCCs: 2, DPs: 4, edges: 5 SCC { #15 } Removing DPs: Order(PosReal,>,Sum)... succeeded. |0|() weight: 0 app❆2_minus(x1,x2) weight: (/ 3 8) + x1 + x2 le() weight: 0 app❆1_le(x1) weight: (/ 3 16) #app❆2_map(x1,x2) weight: (/ 1 16) + x2 app❆4_f(x1,x2,x3,x4) weight: (/ 3 4) + x1 + x3 + x4 s() weight: 0 app❆1_map(x1) weight: (/ 3 16) + x1 app❆1_minus(x1) weight: (/ 3 16) app❆1_if(x1) weight: (/ 3 16) app❆2_f(x1,x2) weight: (/ 3 8) + x1 minus() weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: (/ 3 4) + x1 app❆2_map(x1,x2) weight: (/ 3 8) false() weight: 0 app❆2_if(x1,x2) weight: (/ 3 8) + x1 true() weight: 0 f() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: (/ 13 16) #app❆1_perfectp(x1) weight: 0 app❆2_le(x1,x2) weight: (/ 3 8) + x1 + x2 if() weight: 0 app❆1_f(x1) weight: (/ 3 16) app❆3_f(x1,x2,x3) weight: (/ 9 16) + x2 nil() weight: 0 app❆1_filter(x1) weight: (/ 3 16) + x1 app❆3_if(x1,x2,x3) weight: (/ 5 8) + x1 #app(x1,x2) weight: 0 map() weight: 0 #app❆4_filter2(x1,x2,x3,x4) weight: (/ 1 16) app❆2_filter2(x1,x2) weight: (/ 3 8) + x1 #app❆2_filter(x1,x2) weight: (/ 1 16) app❆1_perfectp(x1) weight: (/ 3 16) + x1 cons() weight: 0 app❆2_cons(x1,x2) weight: (/ 3 8) + x1 + x2 filter() weight: 0 app❆1_s(x1) weight: (/ 3 16) + x1 #app❆4_f(x1,x2,x3,x4) weight: 0 perfectp() weight: 0 app❆1_filter2(x1) weight: (/ 3 16) app❆1_cons(x1) weight: (/ 3 16) app❆3_filter2(x1,x2,x3) weight: (/ 9 16) + x2 + x3 app(x1,x2) weight: (/ 1 8) + x1 + x2 Usable rules: { } Removed DPs: #15 Number of SCCs: 1, DPs: 3, edges: 4 SCC { #5 #7 #10 } Removing DPs: Order(PosReal,>,Sum)... succeeded. |0|() weight: 0 app❆2_minus(x1,x2) weight: (/ 3 8) + x1 + x2 le() weight: 0 app❆1_le(x1) weight: (/ 3 16) #app❆2_map(x1,x2) weight: (/ 1 16) app❆4_f(x1,x2,x3,x4) weight: (/ 3 4) + x1 + x3 + x4 s() weight: 0 app❆1_map(x1) weight: (/ 3 16) + x1 app❆1_minus(x1) weight: (/ 3 16) app❆1_if(x1) weight: (/ 3 16) app❆2_f(x1,x2) weight: (/ 3 8) + x1 minus() weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: (/ 3 4) + x1 app❆2_map(x1,x2) weight: (/ 3 8) false() weight: 0 app❆2_if(x1,x2) weight: (/ 3 8) + x1 true() weight: 0 f() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: (/ 13 16) #app❆1_perfectp(x1) weight: 0 app❆2_le(x1,x2) weight: (/ 3 8) + x1 + x2 if() weight: 0 app❆1_f(x1) weight: (/ 3 16) app❆3_f(x1,x2,x3) weight: (/ 9 16) + x2 nil() weight: 0 app❆1_filter(x1) weight: (/ 3 16) + x1 app❆3_if(x1,x2,x3) weight: (/ 5 8) + x1 #app(x1,x2) weight: 0 map() weight: 0 #app❆4_filter2(x1,x2,x3,x4) weight: (/ 1 8) + x4 app❆2_filter2(x1,x2) weight: (/ 3 8) + x1 #app❆2_filter(x1,x2) weight: (/ 1 16) + x2 app❆1_perfectp(x1) weight: (/ 3 16) + x1 cons() weight: 0 app❆2_cons(x1,x2) weight: (/ 3 8) + x1 + x2 filter() weight: 0 app❆1_s(x1) weight: (/ 3 16) + x1 #app❆4_f(x1,x2,x3,x4) weight: 0 perfectp() weight: 0 app❆1_filter2(x1) weight: (/ 3 16) app❆1_cons(x1) weight: (/ 3 16) app❆3_filter2(x1,x2,x3) weight: (/ 9 16) + x2 + x3 app(x1,x2) weight: (/ 1 8) + x1 + x2 Usable rules: { } Removed DPs: #5 #7 #10 Number of SCCs: 0, DPs: 0, edges: 0 YES