7.78/3.52 YES 9.38/4.02 proof of /export/starexec/sandbox/benchmark/theBenchmark.hs 9.38/4.02 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.38/4.02 9.38/4.02 9.38/4.02 H-Termination with start terms of the given HASKELL could be proven: 9.38/4.02 9.38/4.02 (0) HASKELL 9.38/4.02 (1) BR [EQUIVALENT, 0 ms] 9.38/4.02 (2) HASKELL 9.38/4.02 (3) COR [EQUIVALENT, 0 ms] 9.38/4.02 (4) HASKELL 9.38/4.02 (5) Narrow [SOUND, 0 ms] 9.38/4.02 (6) QDP 9.38/4.02 (7) QDPSizeChangeProof [EQUIVALENT, 0 ms] 9.38/4.02 (8) YES 9.38/4.02 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (0) 9.38/4.02 Obligation: 9.38/4.02 mainModule Main 9.38/4.02 module Main where { 9.38/4.02 import qualified Prelude; 9.38/4.02 data List a = Cons a (List a) | Nil ; 9.38/4.02 9.38/4.02 data MyBool = MyTrue | MyFalse ; 9.38/4.02 9.38/4.02 all :: (a -> MyBool) -> List a -> MyBool; 9.38/4.02 all p = pt and (map p); 9.38/4.02 9.38/4.02 and :: List MyBool -> MyBool; 9.38/4.02 and = foldr asAs MyTrue; 9.38/4.02 9.38/4.02 asAs :: MyBool -> MyBool -> MyBool; 9.38/4.02 asAs MyFalse x = MyFalse; 9.38/4.02 asAs MyTrue x = x; 9.38/4.02 9.38/4.02 foldr :: (a -> b -> b) -> b -> List a -> b; 9.38/4.02 foldr f z Nil = z; 9.38/4.02 foldr f z (Cons x xs) = f x (foldr f z xs); 9.38/4.02 9.38/4.02 map :: (a -> b) -> List a -> List b; 9.38/4.02 map f Nil = Nil; 9.38/4.02 map f (Cons x xs) = Cons (f x) (map f xs); 9.38/4.02 9.38/4.02 pt :: (a -> c) -> (b -> a) -> b -> c; 9.38/4.02 pt f g x = f (g x); 9.38/4.02 9.38/4.02 } 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (1) BR (EQUIVALENT) 9.38/4.02 Replaced joker patterns by fresh variables and removed binding patterns. 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (2) 9.38/4.02 Obligation: 9.38/4.02 mainModule Main 9.38/4.02 module Main where { 9.38/4.02 import qualified Prelude; 9.38/4.02 data List a = Cons a (List a) | Nil ; 9.38/4.02 9.38/4.02 data MyBool = MyTrue | MyFalse ; 9.38/4.02 9.38/4.02 all :: (a -> MyBool) -> List a -> MyBool; 9.38/4.02 all p = pt and (map p); 9.38/4.02 9.38/4.02 and :: List MyBool -> MyBool; 9.38/4.02 and = foldr asAs MyTrue; 9.38/4.02 9.38/4.02 asAs :: MyBool -> MyBool -> MyBool; 9.38/4.02 asAs MyFalse x = MyFalse; 9.38/4.02 asAs MyTrue x = x; 9.38/4.02 9.38/4.02 foldr :: (a -> b -> b) -> b -> List a -> b; 9.38/4.02 foldr f z Nil = z; 9.38/4.02 foldr f z (Cons x xs) = f x (foldr f z xs); 9.38/4.02 9.38/4.02 map :: (b -> a) -> List b -> List a; 9.38/4.02 map f Nil = Nil; 9.38/4.02 map f (Cons x xs) = Cons (f x) (map f xs); 9.38/4.02 9.38/4.02 pt :: (b -> c) -> (a -> b) -> a -> c; 9.38/4.02 pt f g x = f (g x); 9.38/4.02 9.38/4.02 } 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (3) COR (EQUIVALENT) 9.38/4.02 Cond Reductions: 9.38/4.02 The following Function with conditions 9.38/4.02 "undefined |Falseundefined; 9.38/4.02 " 9.38/4.02 is transformed to 9.38/4.02 "undefined = undefined1; 9.38/4.02 " 9.38/4.02 "undefined0 True = undefined; 9.38/4.02 " 9.38/4.02 "undefined1 = undefined0 False; 9.38/4.02 " 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (4) 9.38/4.02 Obligation: 9.38/4.02 mainModule Main 9.38/4.02 module Main where { 9.38/4.02 import qualified Prelude; 9.38/4.02 data List a = Cons a (List a) | Nil ; 9.38/4.02 9.38/4.02 data MyBool = MyTrue | MyFalse ; 9.38/4.02 9.38/4.02 all :: (a -> MyBool) -> List a -> MyBool; 9.38/4.02 all p = pt and (map p); 9.38/4.02 9.38/4.02 and :: List MyBool -> MyBool; 9.38/4.02 and = foldr asAs MyTrue; 9.38/4.02 9.38/4.02 asAs :: MyBool -> MyBool -> MyBool; 9.38/4.02 asAs MyFalse x = MyFalse; 9.38/4.02 asAs MyTrue x = x; 9.38/4.02 9.38/4.02 foldr :: (a -> b -> b) -> b -> List a -> b; 9.38/4.02 foldr f z Nil = z; 9.38/4.02 foldr f z (Cons x xs) = f x (foldr f z xs); 9.38/4.02 9.38/4.02 map :: (b -> a) -> List b -> List a; 9.38/4.02 map f Nil = Nil; 9.38/4.02 map f (Cons x xs) = Cons (f x) (map f xs); 9.38/4.02 9.38/4.02 pt :: (a -> b) -> (c -> a) -> c -> b; 9.38/4.02 pt f g x = f (g x); 9.38/4.02 9.38/4.02 } 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (5) Narrow (SOUND) 9.38/4.02 Haskell To QDPs 9.38/4.02 9.38/4.02 digraph dp_graph { 9.38/4.02 node [outthreshold=100, inthreshold=100];1[label="all",fontsize=16,color="grey",shape="box"];1 -> 3[label="",style="dashed", color="grey", weight=3]; 9.38/4.02 3[label="all vx3",fontsize=16,color="grey",shape="box"];3 -> 4[label="",style="dashed", color="grey", weight=3]; 9.38/4.02 4[label="all vx3 vx4",fontsize=16,color="black",shape="triangle"];4 -> 5[label="",style="solid", color="black", weight=3]; 9.38/4.02 5[label="pt and (map vx3) vx4",fontsize=16,color="black",shape="box"];5 -> 6[label="",style="solid", color="black", weight=3]; 9.38/4.02 6[label="and (map vx3 vx4)",fontsize=16,color="black",shape="box"];6 -> 7[label="",style="solid", color="black", weight=3]; 9.38/4.02 7[label="foldr asAs MyTrue (map vx3 vx4)",fontsize=16,color="burlywood",shape="triangle"];28[label="vx4/Cons vx40 vx41",fontsize=10,color="white",style="solid",shape="box"];7 -> 28[label="",style="solid", color="burlywood", weight=9]; 9.38/4.02 28 -> 8[label="",style="solid", color="burlywood", weight=3]; 9.38/4.02 29[label="vx4/Nil",fontsize=10,color="white",style="solid",shape="box"];7 -> 29[label="",style="solid", color="burlywood", weight=9]; 9.38/4.02 29 -> 9[label="",style="solid", color="burlywood", weight=3]; 9.38/4.02 8[label="foldr asAs MyTrue (map vx3 (Cons vx40 vx41))",fontsize=16,color="black",shape="box"];8 -> 10[label="",style="solid", color="black", weight=3]; 9.38/4.02 9[label="foldr asAs MyTrue (map vx3 Nil)",fontsize=16,color="black",shape="box"];9 -> 11[label="",style="solid", color="black", weight=3]; 9.38/4.02 10[label="foldr asAs MyTrue (Cons (vx3 vx40) (map vx3 vx41))",fontsize=16,color="black",shape="box"];10 -> 12[label="",style="solid", color="black", weight=3]; 9.38/4.02 11[label="foldr asAs MyTrue Nil",fontsize=16,color="black",shape="box"];11 -> 13[label="",style="solid", color="black", weight=3]; 9.38/4.02 12 -> 17[label="",style="dashed", color="red", weight=0]; 9.38/4.02 12[label="asAs (vx3 vx40) (foldr asAs MyTrue (map vx3 vx41))",fontsize=16,color="magenta"];12 -> 18[label="",style="dashed", color="magenta", weight=3]; 9.38/4.02 12 -> 19[label="",style="dashed", color="magenta", weight=3]; 9.38/4.02 13[label="MyTrue",fontsize=16,color="green",shape="box"];18 -> 7[label="",style="dashed", color="red", weight=0]; 9.38/4.02 18[label="foldr asAs MyTrue (map vx3 vx41)",fontsize=16,color="magenta"];18 -> 21[label="",style="dashed", color="magenta", weight=3]; 9.38/4.02 19[label="vx3 vx40",fontsize=16,color="green",shape="box"];19 -> 22[label="",style="dashed", color="green", weight=3]; 9.38/4.02 17[label="asAs vx6 vx5",fontsize=16,color="burlywood",shape="triangle"];30[label="vx6/MyTrue",fontsize=10,color="white",style="solid",shape="box"];17 -> 30[label="",style="solid", color="burlywood", weight=9]; 9.38/4.02 30 -> 23[label="",style="solid", color="burlywood", weight=3]; 9.38/4.02 31[label="vx6/MyFalse",fontsize=10,color="white",style="solid",shape="box"];17 -> 31[label="",style="solid", color="burlywood", weight=9]; 9.38/4.02 31 -> 24[label="",style="solid", color="burlywood", weight=3]; 9.38/4.02 21[label="vx41",fontsize=16,color="green",shape="box"];22[label="vx40",fontsize=16,color="green",shape="box"];23[label="asAs MyTrue vx5",fontsize=16,color="black",shape="box"];23 -> 26[label="",style="solid", color="black", weight=3]; 9.38/4.02 24[label="asAs MyFalse vx5",fontsize=16,color="black",shape="box"];24 -> 27[label="",style="solid", color="black", weight=3]; 9.38/4.02 26[label="vx5",fontsize=16,color="green",shape="box"];27[label="MyFalse",fontsize=16,color="green",shape="box"];} 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (6) 9.38/4.02 Obligation: 9.38/4.02 Q DP problem: 9.38/4.02 The TRS P consists of the following rules: 9.38/4.02 9.38/4.02 new_foldr(vx3, Cons(vx40, vx41), h) -> new_foldr(vx3, vx41, h) 9.38/4.02 9.38/4.02 R is empty. 9.38/4.02 Q is empty. 9.38/4.02 We have to consider all minimal (P,Q,R)-chains. 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (7) QDPSizeChangeProof (EQUIVALENT) 9.38/4.02 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. 9.38/4.02 9.38/4.02 From the DPs we obtained the following set of size-change graphs: 9.38/4.02 *new_foldr(vx3, Cons(vx40, vx41), h) -> new_foldr(vx3, vx41, h) 9.38/4.02 The graph contains the following edges 1 >= 1, 2 > 2, 3 >= 3 9.38/4.02 9.38/4.02 9.38/4.02 ---------------------------------------- 9.38/4.02 9.38/4.02 (8) 9.38/4.02 YES 9.55/4.05 EOF