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