Input TRS: 1: app(app(times(),x),0()) -> 0() 2: app(app(times(),x),app(s(),y)) -> app(app(plus(),app(app(times(),x),y)),x) 3: app(app(plus(),x),0()) -> x 4: app(app(plus(),0()),x) -> x 5: app(app(plus(),x),app(s(),y)) -> app(s(),app(app(plus(),x),y)) 6: app(app(plus(),app(s(),x)),y) -> app(s(),app(app(plus(),x),y)) 7: app(app(map(),f),nil()) -> nil() 8: app(app(map(),f),app(app(cons(),x),xs)) -> app(app(cons(),app(f,x)),app(app(map(),f),xs)) 9: app(app(filter(),f),nil()) -> nil() 10: app(app(filter(),f),app(app(cons(),x),xs)) -> app(app(app(app(filter2(),app(f,x)),f),x),xs) 11: app(app(app(app(filter2(),true()),f),x),xs) -> app(app(cons(),x),app(app(filter(),f),xs)) 12: app(app(app(app(filter2(),false()),f),x),xs) -> app(app(filter(),f),xs) Number of strict rules: 12 Direct Order(PosReal,>,Poly) ... failed. Freezing app 1: app❆2_times(x,0()) -> 0() 2: app❆2_times(x,app❆1_s(y)) -> app❆2_plus(app❆2_times(x,y),x) 3: app❆2_plus(x,0()) -> x 4: app❆2_plus(0(),x) -> x 5: app❆2_plus(x,app❆1_s(y)) -> app❆1_s(app❆2_plus(x,y)) 6: app❆2_plus(app❆1_s(x),y) -> app❆1_s(app❆2_plus(x,y)) 7: app❆2_map(f,nil()) -> nil() 8: app❆2_map(f,app❆2_cons(x,xs)) -> app❆2_cons(app(f,x),app❆2_map(f,xs)) 9: app❆2_filter(f,nil()) -> nil() 10: app❆2_filter(f,app❆2_cons(x,xs)) -> app❆4_filter2(app(f,x),f,x,xs) 11: app❆4_filter2(true(),f,x,xs) -> app❆2_cons(x,app❆2_filter(f,xs)) 12: app❆4_filter2(false(),f,x,xs) -> app❆2_filter(f,xs) 13: app(plus(),_1) ->= app❆1_plus(_1) 14: app(app❆1_plus(_1),_2) ->= app❆2_plus(_1,_2) 15: app(cons(),_1) ->= app❆1_cons(_1) 16: app(app❆1_cons(_1),_2) ->= app❆2_cons(_1,_2) 17: app(times(),_1) ->= app❆1_times(_1) 18: app(app❆1_times(_1),_2) ->= app❆2_times(_1,_2) 19: app(s(),_1) ->= app❆1_s(_1) 20: app(filter(),_1) ->= app❆1_filter(_1) 21: app(app❆1_filter(_1),_2) ->= app❆2_filter(_1,_2) 22: app(map(),_1) ->= app❆1_map(_1) 23: app(app❆1_map(_1),_2) ->= app❆2_map(_1,_2) 24: app(filter2(),_1) ->= app❆1_filter2(_1) 25: app(app❆1_filter2(_1),_2) ->= app❆2_filter2(_1,_2) 26: app(app❆2_filter2(_1,_2),_3) ->= app❆3_filter2(_1,_2,_3) 27: 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❆2_times(x,app❆1_s(y)) -> #app❆2_plus(app❆2_times(x,y),x) #2: #app❆2_times(x,app❆1_s(y)) -> #app❆2_times(x,y) #3: #app❆2_plus(app❆1_s(x),y) -> #app❆2_plus(x,y) #4: #app❆4_filter2(true(),f,x,xs) -> #app❆2_filter(f,xs) #5: #app(app❆1_map(_1),_2) ->? #app❆2_map(_1,_2) #6: #app❆4_filter2(false(),f,x,xs) -> #app❆2_filter(f,xs) #7: #app(app❆1_plus(_1),_2) ->? #app❆2_plus(_1,_2) #8: #app❆2_filter(f,app❆2_cons(x,xs)) -> #app❆4_filter2(app(f,x),f,x,xs) #9: #app❆2_filter(f,app❆2_cons(x,xs)) -> #app(f,x) #10: #app❆2_plus(x,app❆1_s(y)) -> #app❆2_plus(x,y) #11: #app(app❆3_filter2(_1,_2,_3),_4) ->? #app❆4_filter2(_1,_2,_3,_4) #12: #app(app❆1_filter(_1),_2) ->? #app❆2_filter(_1,_2) #13: #app❆2_map(f,app❆2_cons(x,xs)) -> #app(f,x) #14: #app❆2_map(f,app❆2_cons(x,xs)) -> #app❆2_map(f,xs) #15: #app(app❆1_times(_1),_2) ->? #app❆2_times(_1,_2) Number of SCCs: 3, DPs: 12, edges: 25 SCC { #2 } Removing DPs: Order(PosReal,>,Sum)... succeeded. #app❆2_map(x1,x2) weight: 0 s() weight: 0 app❆1_map(x1) weight: 0 app❆1_plus(x1) weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: 0 app❆2_plus(x1,x2) weight: 0 app❆2_map(x1,x2) weight: 0 false() weight: 0 true() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: 0 0() weight: 0 #app❆2_plus(x1,x2) weight: 0 times() weight: 0 nil() weight: 0 app❆1_filter(x1) 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_times(x1,x2) weight: x2 plus() weight: 0 #app❆2_filter(x1,x2) weight: 0 cons() weight: 0 app❆2_cons(x1,x2) weight: 0 app❆2_times(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❆1_times(x1) weight: 0 app(x1,x2) weight: 0 Usable rules: { } Removed DPs: #2 Number of SCCs: 2, DPs: 11, edges: 24 SCC { #3 #10 } Removing DPs: Order(PosReal,>,Sum)... succeeded. #app❆2_map(x1,x2) weight: 0 s() weight: 0 app❆1_map(x1) weight: 0 app❆1_plus(x1) weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: 0 app❆2_plus(x1,x2) weight: 0 app❆2_map(x1,x2) weight: 0 false() weight: 0 true() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: 0 0() weight: 0 #app❆2_plus(x1,x2) weight: x1 times() weight: 0 nil() weight: 0 app❆1_filter(x1) 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_times(x1,x2) weight: 0 plus() weight: 0 #app❆2_filter(x1,x2) weight: 0 cons() weight: 0 app❆2_cons(x1,x2) weight: 0 app❆2_times(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❆1_times(x1) weight: 0 app(x1,x2) weight: 0 Usable rules: { } Removed DPs: #3 Number of SCCs: 2, DPs: 10, edges: 21 SCC { #10 } Removing DPs: Order(PosReal,>,Sum)... succeeded. #app❆2_map(x1,x2) weight: 0 s() weight: 0 app❆1_map(x1) weight: 0 app❆1_plus(x1) weight: 0 app❆4_filter2(x1,x2,x3,x4) weight: 0 app❆2_plus(x1,x2) weight: 0 app❆2_map(x1,x2) weight: 0 false() weight: 0 true() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: 0 0() weight: 0 #app❆2_plus(x1,x2) weight: x2 times() weight: 0 nil() weight: 0 app❆1_filter(x1) 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_times(x1,x2) weight: 0 plus() weight: 0 #app❆2_filter(x1,x2) weight: 0 cons() weight: 0 app❆2_cons(x1,x2) weight: 0 app❆2_times(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❆1_times(x1) weight: 0 app(x1,x2) weight: 0 Usable rules: { } Removed DPs: #10 Number of SCCs: 1, DPs: 9, edges: 20 SCC { #4..6 #8 #9 #11..14 } Removing DPs: Order(PosReal,>,Sum)... succeeded. #app❆2_map(x1,x2) weight: (/ 1 16) + x2 s() weight: 0 app❆1_map(x1) weight: (/ 3 8) app❆1_plus(x1) weight: (/ 3 8) app❆4_filter2(x1,x2,x3,x4) weight: (/ 3 8) + x1 app❆2_plus(x1,x2) weight: (/ 3 8) + x1 app❆2_map(x1,x2) weight: (/ 3 8) false() weight: 0 true() weight: 0 filter2() weight: 0 app❆2_filter(x1,x2) weight: (/ 7 16) + x2 0() weight: 0 #app❆2_plus(x1,x2) weight: 0 times() weight: 0 nil() weight: 0 app❆1_filter(x1) weight: (/ 3 8) #app(x1,x2) weight: (/ 1 8) + x2 map() weight: 0 #app❆4_filter2(x1,x2,x3,x4) weight: (/ 1 16) + x4 app❆2_filter2(x1,x2) weight: (/ 3 8) #app❆2_times(x1,x2) weight: 0 plus() weight: 0 #app❆2_filter(x1,x2) weight: x2 cons() weight: 0 app❆2_cons(x1,x2) weight: (/ 3 16) + x1 + x2 app❆2_times(x1,x2) weight: (/ 3 8) + x1 filter() weight: 0 app❆1_s(x1) weight: (/ 7 16) app❆1_filter2(x1) weight: (/ 3 8) app❆1_cons(x1) weight: (/ 3 8) app❆3_filter2(x1,x2,x3) weight: (/ 3 8) + x1 + x2 app❆1_times(x1) weight: (/ 3 8) app(x1,x2) weight: (/ 5 16) + x2 Usable rules: { } Removed DPs: #4..6 #8 #9 #11..14 Number of SCCs: 1, DPs: 0, edges: 0 YES