7.73/3.57 YES 9.89/4.13 proof of /export/starexec/sandbox/benchmark/theBenchmark.hs 9.89/4.13 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.89/4.13 9.89/4.13 9.89/4.13 H-Termination with start terms of the given HASKELL could be proven: 9.89/4.13 9.89/4.13 (0) HASKELL 9.89/4.13 (1) BR [EQUIVALENT, 0 ms] 9.89/4.13 (2) HASKELL 9.89/4.13 (3) COR [EQUIVALENT, 0 ms] 9.89/4.13 (4) HASKELL 9.89/4.13 (5) Narrow [SOUND, 0 ms] 9.89/4.13 (6) QDP 9.89/4.13 (7) QDPSizeChangeProof [EQUIVALENT, 0 ms] 9.89/4.13 (8) YES 9.89/4.13 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (0) 9.89/4.13 Obligation: 9.89/4.13 mainModule Main 9.89/4.13 module Main where { 9.89/4.13 import qualified Prelude; 9.89/4.13 data List a = Cons a (List a) | Nil ; 9.89/4.13 9.89/4.13 data MyBool = MyTrue | MyFalse ; 9.89/4.13 9.89/4.13 concat :: List (List a) -> List a; 9.89/4.13 concat = foldr psPs Nil; 9.89/4.13 9.89/4.13 concatMap :: (a -> List b) -> List a -> List b; 9.89/4.13 concatMap f = pt concat (map f); 9.89/4.13 9.89/4.13 filter :: (a -> MyBool) -> List a -> List a; 9.89/4.13 filter p xs = concatMap (filter0 p) xs; 9.89/4.13 9.89/4.13 filter0 p vu39 = filter00 p vu39; 9.89/4.13 9.89/4.13 filter00 p x = filter000 x (p x); 9.89/4.13 filter00 p vv = Nil; 9.89/4.13 9.89/4.13 filter000 x MyTrue = Cons x Nil; 9.89/4.13 filter000 x MyFalse = Nil; 9.89/4.13 9.89/4.13 foldr :: (b -> a -> a) -> a -> List b -> a; 9.89/4.13 foldr f z Nil = z; 9.89/4.13 foldr f z (Cons x xs) = f x (foldr f z xs); 9.89/4.13 9.89/4.13 map :: (a -> b) -> List a -> List b; 9.89/4.13 map f Nil = Nil; 9.89/4.13 map f (Cons x xs) = Cons (f x) (map f xs); 9.89/4.13 9.89/4.13 psPs :: List a -> List a -> List a; 9.89/4.13 psPs Nil ys = ys; 9.89/4.13 psPs (Cons x xs) ys = Cons x (psPs xs ys); 9.89/4.13 9.89/4.13 pt :: (c -> a) -> (b -> c) -> b -> a; 9.89/4.13 pt f g x = f (g x); 9.89/4.13 9.89/4.13 } 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (1) BR (EQUIVALENT) 9.89/4.13 Replaced joker patterns by fresh variables and removed binding patterns. 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (2) 9.89/4.13 Obligation: 9.89/4.13 mainModule Main 9.89/4.13 module Main where { 9.89/4.13 import qualified Prelude; 9.89/4.13 data List a = Cons a (List a) | Nil ; 9.89/4.13 9.89/4.13 data MyBool = MyTrue | MyFalse ; 9.89/4.13 9.89/4.13 concat :: List (List a) -> List a; 9.89/4.13 concat = foldr psPs Nil; 9.89/4.13 9.89/4.13 concatMap :: (a -> List b) -> List a -> List b; 9.89/4.13 concatMap f = pt concat (map f); 9.89/4.13 9.89/4.13 filter :: (a -> MyBool) -> List a -> List a; 9.89/4.13 filter p xs = concatMap (filter0 p) xs; 9.89/4.13 9.89/4.13 filter0 p vu39 = filter00 p vu39; 9.89/4.13 9.89/4.13 filter00 p x = filter000 x (p x); 9.89/4.13 filter00 p vv = Nil; 9.89/4.13 9.89/4.13 filter000 x MyTrue = Cons x Nil; 9.89/4.13 filter000 x MyFalse = Nil; 9.89/4.13 9.89/4.13 foldr :: (b -> a -> a) -> a -> List b -> a; 9.89/4.13 foldr f z Nil = z; 9.89/4.13 foldr f z (Cons x xs) = f x (foldr f z xs); 9.89/4.13 9.89/4.13 map :: (a -> b) -> List a -> List b; 9.89/4.13 map f Nil = Nil; 9.89/4.13 map f (Cons x xs) = Cons (f x) (map f xs); 9.89/4.13 9.89/4.13 psPs :: List a -> List a -> List a; 9.89/4.13 psPs Nil ys = ys; 9.89/4.13 psPs (Cons x xs) ys = Cons x (psPs xs ys); 9.89/4.13 9.89/4.13 pt :: (b -> a) -> (c -> b) -> c -> a; 9.89/4.13 pt f g x = f (g x); 9.89/4.13 9.89/4.13 } 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (3) COR (EQUIVALENT) 9.89/4.13 Cond Reductions: 9.89/4.13 The following Function with conditions 9.89/4.13 "undefined |Falseundefined; 9.89/4.13 " 9.89/4.13 is transformed to 9.89/4.13 "undefined = undefined1; 9.89/4.13 " 9.89/4.13 "undefined0 True = undefined; 9.89/4.13 " 9.89/4.13 "undefined1 = undefined0 False; 9.89/4.13 " 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (4) 9.89/4.13 Obligation: 9.89/4.13 mainModule Main 9.89/4.13 module Main where { 9.89/4.13 import qualified Prelude; 9.89/4.13 data List a = Cons a (List a) | Nil ; 9.89/4.13 9.89/4.13 data MyBool = MyTrue | MyFalse ; 9.89/4.13 9.89/4.13 concat :: List (List a) -> List a; 9.89/4.13 concat = foldr psPs Nil; 9.89/4.13 9.89/4.13 concatMap :: (b -> List a) -> List b -> List a; 9.89/4.13 concatMap f = pt concat (map f); 9.89/4.13 9.89/4.13 filter :: (a -> MyBool) -> List a -> List a; 9.89/4.13 filter p xs = concatMap (filter0 p) xs; 9.89/4.13 9.89/4.13 filter0 p vu39 = filter00 p vu39; 9.89/4.13 9.89/4.13 filter00 p x = filter000 x (p x); 9.89/4.13 filter00 p vv = Nil; 9.89/4.13 9.89/4.13 filter000 x MyTrue = Cons x Nil; 9.89/4.13 filter000 x MyFalse = Nil; 9.89/4.13 9.89/4.13 foldr :: (a -> b -> b) -> b -> List a -> b; 9.89/4.13 foldr f z Nil = z; 9.89/4.13 foldr f z (Cons x xs) = f x (foldr f z xs); 9.89/4.13 9.89/4.13 map :: (a -> b) -> List a -> List b; 9.89/4.13 map f Nil = Nil; 9.89/4.13 map f (Cons x xs) = Cons (f x) (map f xs); 9.89/4.13 9.89/4.13 psPs :: List a -> List a -> List a; 9.89/4.13 psPs Nil ys = ys; 9.89/4.13 psPs (Cons x xs) ys = Cons x (psPs xs ys); 9.89/4.13 9.89/4.13 pt :: (c -> b) -> (a -> c) -> a -> b; 9.89/4.13 pt f g x = f (g x); 9.89/4.13 9.89/4.13 } 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (5) Narrow (SOUND) 9.89/4.13 Haskell To QDPs 9.89/4.13 9.89/4.13 digraph dp_graph { 9.89/4.13 node [outthreshold=100, inthreshold=100];1[label="filter",fontsize=16,color="grey",shape="box"];1 -> 3[label="",style="dashed", color="grey", weight=3]; 9.89/4.13 3[label="filter vy3",fontsize=16,color="grey",shape="box"];3 -> 4[label="",style="dashed", color="grey", weight=3]; 9.89/4.13 4[label="filter vy3 vy4",fontsize=16,color="black",shape="triangle"];4 -> 5[label="",style="solid", color="black", weight=3]; 9.89/4.13 5[label="concatMap (filter0 vy3) vy4",fontsize=16,color="black",shape="box"];5 -> 6[label="",style="solid", color="black", weight=3]; 9.89/4.13 6[label="pt concat (map (filter0 vy3)) vy4",fontsize=16,color="black",shape="box"];6 -> 7[label="",style="solid", color="black", weight=3]; 9.89/4.13 7[label="concat (map (filter0 vy3) vy4)",fontsize=16,color="black",shape="box"];7 -> 8[label="",style="solid", color="black", weight=3]; 9.89/4.13 8[label="foldr psPs Nil (map (filter0 vy3) vy4)",fontsize=16,color="burlywood",shape="triangle"];31[label="vy4/Cons vy40 vy41",fontsize=10,color="white",style="solid",shape="box"];8 -> 31[label="",style="solid", color="burlywood", weight=9]; 9.89/4.13 31 -> 9[label="",style="solid", color="burlywood", weight=3]; 9.89/4.13 32[label="vy4/Nil",fontsize=10,color="white",style="solid",shape="box"];8 -> 32[label="",style="solid", color="burlywood", weight=9]; 9.89/4.13 32 -> 10[label="",style="solid", color="burlywood", weight=3]; 9.89/4.13 9[label="foldr psPs Nil (map (filter0 vy3) (Cons vy40 vy41))",fontsize=16,color="black",shape="box"];9 -> 11[label="",style="solid", color="black", weight=3]; 9.89/4.13 10[label="foldr psPs Nil (map (filter0 vy3) Nil)",fontsize=16,color="black",shape="box"];10 -> 12[label="",style="solid", color="black", weight=3]; 9.89/4.13 11[label="foldr psPs Nil (Cons (filter0 vy3 vy40) (map (filter0 vy3) vy41))",fontsize=16,color="black",shape="box"];11 -> 13[label="",style="solid", color="black", weight=3]; 9.89/4.13 12[label="foldr psPs Nil Nil",fontsize=16,color="black",shape="box"];12 -> 14[label="",style="solid", color="black", weight=3]; 9.89/4.13 13 -> 15[label="",style="dashed", color="red", weight=0]; 9.89/4.13 13[label="psPs (filter0 vy3 vy40) (foldr psPs Nil (map (filter0 vy3) vy41))",fontsize=16,color="magenta"];13 -> 16[label="",style="dashed", color="magenta", weight=3]; 9.89/4.13 14[label="Nil",fontsize=16,color="green",shape="box"];16 -> 8[label="",style="dashed", color="red", weight=0]; 9.89/4.13 16[label="foldr psPs Nil (map (filter0 vy3) vy41)",fontsize=16,color="magenta"];16 -> 17[label="",style="dashed", color="magenta", weight=3]; 9.89/4.13 15[label="psPs (filter0 vy3 vy40) vy5",fontsize=16,color="black",shape="triangle"];15 -> 18[label="",style="solid", color="black", weight=3]; 9.89/4.13 17[label="vy41",fontsize=16,color="green",shape="box"];18[label="psPs (filter00 vy3 vy40) vy5",fontsize=16,color="black",shape="box"];18 -> 19[label="",style="solid", color="black", weight=3]; 9.89/4.13 19 -> 20[label="",style="dashed", color="red", weight=0]; 9.89/4.13 19[label="psPs (filter000 vy40 (vy3 vy40)) vy5",fontsize=16,color="magenta"];19 -> 21[label="",style="dashed", color="magenta", weight=3]; 9.89/4.13 21[label="vy3 vy40",fontsize=16,color="green",shape="box"];21 -> 25[label="",style="dashed", color="green", weight=3]; 9.89/4.13 20[label="psPs (filter000 vy40 vy6) vy5",fontsize=16,color="burlywood",shape="triangle"];33[label="vy6/MyTrue",fontsize=10,color="white",style="solid",shape="box"];20 -> 33[label="",style="solid", color="burlywood", weight=9]; 9.89/4.13 33 -> 23[label="",style="solid", color="burlywood", weight=3]; 9.89/4.13 34[label="vy6/MyFalse",fontsize=10,color="white",style="solid",shape="box"];20 -> 34[label="",style="solid", color="burlywood", weight=9]; 9.89/4.13 34 -> 24[label="",style="solid", color="burlywood", weight=3]; 9.89/4.13 25[label="vy40",fontsize=16,color="green",shape="box"];23[label="psPs (filter000 vy40 MyTrue) vy5",fontsize=16,color="black",shape="box"];23 -> 26[label="",style="solid", color="black", weight=3]; 9.89/4.13 24[label="psPs (filter000 vy40 MyFalse) vy5",fontsize=16,color="black",shape="box"];24 -> 27[label="",style="solid", color="black", weight=3]; 9.89/4.13 26[label="psPs (Cons vy40 Nil) vy5",fontsize=16,color="black",shape="box"];26 -> 28[label="",style="solid", color="black", weight=3]; 9.89/4.13 27[label="psPs Nil vy5",fontsize=16,color="black",shape="triangle"];27 -> 29[label="",style="solid", color="black", weight=3]; 9.89/4.13 28[label="Cons vy40 (psPs Nil vy5)",fontsize=16,color="green",shape="box"];28 -> 30[label="",style="dashed", color="green", weight=3]; 9.89/4.13 29[label="vy5",fontsize=16,color="green",shape="box"];30 -> 27[label="",style="dashed", color="red", weight=0]; 9.89/4.13 30[label="psPs Nil vy5",fontsize=16,color="magenta"];} 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (6) 9.89/4.13 Obligation: 9.89/4.13 Q DP problem: 9.89/4.13 The TRS P consists of the following rules: 9.89/4.13 9.89/4.13 new_foldr(vy3, Cons(vy40, vy41), h) -> new_foldr(vy3, vy41, h) 9.89/4.13 9.89/4.13 R is empty. 9.89/4.13 Q is empty. 9.89/4.13 We have to consider all minimal (P,Q,R)-chains. 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (7) QDPSizeChangeProof (EQUIVALENT) 9.89/4.13 By using the subterm criterion [SUBTERM_CRITERION] together with the size-change analysis [AAECC05] we have proven that there are no infinite chains for this DP problem. 9.89/4.13 9.89/4.13 From the DPs we obtained the following set of size-change graphs: 9.89/4.13 *new_foldr(vy3, Cons(vy40, vy41), h) -> new_foldr(vy3, vy41, h) 9.89/4.13 The graph contains the following edges 1 >= 1, 2 > 2, 3 >= 3 9.89/4.13 9.89/4.13 9.89/4.13 ---------------------------------------- 9.89/4.13 9.89/4.13 (8) 9.89/4.13 YES 9.99/4.21 EOF