/export/starexec/sandbox2/solver/bin/starexec_run_standard /export/starexec/sandbox2/benchmark/theBenchmark.hs /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.hs # AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty H-Termination with start terms of the given HASKELL could be proven: (0) HASKELL (1) BR [EQUIVALENT, 0 ms] (2) HASKELL (3) COR [EQUIVALENT, 0 ms] (4) HASKELL (5) Narrow [SOUND, 0 ms] (6) QDP (7) QDPSizeChangeProof [EQUIVALENT, 0 ms] (8) YES ---------------------------------------- (0) Obligation: mainModule Main module Main where { import qualified Prelude; data List a = Cons a (List a) | Nil ; data MyBool = MyTrue | MyFalse ; data Tup0 = Tup0 ; all :: (a -> MyBool) -> List a -> MyBool; all p = pt and (map p); and :: List MyBool -> MyBool; and = foldr asAs MyTrue; asAs :: MyBool -> MyBool -> MyBool; asAs MyFalse x = MyFalse; asAs MyTrue x = x; esEsTup0 :: Tup0 -> Tup0 -> MyBool; esEsTup0 Tup0 Tup0 = MyTrue; foldr :: (b -> a -> a) -> a -> List b -> a; foldr f z Nil = z; foldr f z (Cons x xs) = f x (foldr f z xs); fsEsTup0 :: Tup0 -> Tup0 -> MyBool; fsEsTup0 x y = not (esEsTup0 x y); map :: (a -> b) -> List a -> List b; map f Nil = Nil; map f (Cons x xs) = Cons (f x) (map f xs); not :: MyBool -> MyBool; not MyTrue = MyFalse; not MyFalse = MyTrue; notElemTup0 :: Tup0 -> List Tup0 -> MyBool; notElemTup0 = pt all fsEsTup0; pt :: (b -> c) -> (a -> b) -> a -> c; pt f g x = f (g x); } ---------------------------------------- (1) BR (EQUIVALENT) Replaced joker patterns by fresh variables and removed binding patterns. ---------------------------------------- (2) Obligation: mainModule Main module Main where { import qualified Prelude; data List a = Cons a (List a) | Nil ; data MyBool = MyTrue | MyFalse ; data Tup0 = Tup0 ; all :: (a -> MyBool) -> List a -> MyBool; all p = pt and (map p); and :: List MyBool -> MyBool; and = foldr asAs MyTrue; asAs :: MyBool -> MyBool -> MyBool; asAs MyFalse x = MyFalse; asAs MyTrue x = x; esEsTup0 :: Tup0 -> Tup0 -> MyBool; esEsTup0 Tup0 Tup0 = MyTrue; foldr :: (a -> b -> b) -> b -> List a -> b; foldr f z Nil = z; foldr f z (Cons x xs) = f x (foldr f z xs); fsEsTup0 :: Tup0 -> Tup0 -> MyBool; fsEsTup0 x y = not (esEsTup0 x y); map :: (b -> a) -> List b -> List a; map f Nil = Nil; map f (Cons x xs) = Cons (f x) (map f xs); not :: MyBool -> MyBool; not MyTrue = MyFalse; not MyFalse = MyTrue; notElemTup0 :: Tup0 -> List Tup0 -> MyBool; notElemTup0 = pt all fsEsTup0; pt :: (c -> a) -> (b -> c) -> b -> a; pt f g x = f (g x); } ---------------------------------------- (3) COR (EQUIVALENT) Cond Reductions: The following Function with conditions "undefined |Falseundefined; " is transformed to "undefined = undefined1; " "undefined0 True = undefined; " "undefined1 = undefined0 False; " ---------------------------------------- (4) Obligation: mainModule Main module Main where { import qualified Prelude; data List a = Cons a (List a) | Nil ; data MyBool = MyTrue | MyFalse ; data Tup0 = Tup0 ; all :: (a -> MyBool) -> List a -> MyBool; all p = pt and (map p); and :: List MyBool -> MyBool; and = foldr asAs MyTrue; asAs :: MyBool -> MyBool -> MyBool; asAs MyFalse x = MyFalse; asAs MyTrue x = x; esEsTup0 :: Tup0 -> Tup0 -> MyBool; esEsTup0 Tup0 Tup0 = MyTrue; foldr :: (a -> b -> b) -> b -> List a -> b; foldr f z Nil = z; foldr f z (Cons x xs) = f x (foldr f z xs); fsEsTup0 :: Tup0 -> Tup0 -> MyBool; fsEsTup0 x y = not (esEsTup0 x y); map :: (a -> b) -> List a -> List b; map f Nil = Nil; map f (Cons x xs) = Cons (f x) (map f xs); not :: MyBool -> MyBool; not MyTrue = MyFalse; not MyFalse = MyTrue; notElemTup0 :: Tup0 -> List Tup0 -> MyBool; notElemTup0 = pt all fsEsTup0; pt :: (b -> a) -> (c -> b) -> c -> a; pt f g x = f (g x); } ---------------------------------------- (5) Narrow (SOUND) Haskell To QDPs digraph dp_graph { node [outthreshold=100, inthreshold=100];1[label="notElemTup0",fontsize=16,color="grey",shape="box"];1 -> 3[label="",style="dashed", color="grey", weight=3]; 3[label="notElemTup0 vx3",fontsize=16,color="grey",shape="box"];3 -> 4[label="",style="dashed", color="grey", weight=3]; 4[label="notElemTup0 vx3 vx4",fontsize=16,color="black",shape="triangle"];4 -> 5[label="",style="solid", color="black", weight=3]; 5[label="pt all fsEsTup0 vx3 vx4",fontsize=16,color="black",shape="box"];5 -> 6[label="",style="solid", color="black", weight=3]; 6[label="all (fsEsTup0 vx3) vx4",fontsize=16,color="black",shape="box"];6 -> 7[label="",style="solid", color="black", weight=3]; 7[label="pt and (map (fsEsTup0 vx3)) vx4",fontsize=16,color="black",shape="box"];7 -> 8[label="",style="solid", color="black", weight=3]; 8[label="and (map (fsEsTup0 vx3) vx4)",fontsize=16,color="black",shape="box"];8 -> 9[label="",style="solid", color="black", weight=3]; 9[label="foldr asAs MyTrue (map (fsEsTup0 vx3) vx4)",fontsize=16,color="burlywood",shape="triangle"];25[label="vx4/Cons vx40 vx41",fontsize=10,color="white",style="solid",shape="box"];9 -> 25[label="",style="solid", color="burlywood", weight=9]; 25 -> 10[label="",style="solid", color="burlywood", weight=3]; 26[label="vx4/Nil",fontsize=10,color="white",style="solid",shape="box"];9 -> 26[label="",style="solid", color="burlywood", weight=9]; 26 -> 11[label="",style="solid", color="burlywood", weight=3]; 10[label="foldr asAs MyTrue (map (fsEsTup0 vx3) (Cons vx40 vx41))",fontsize=16,color="black",shape="box"];10 -> 12[label="",style="solid", color="black", weight=3]; 11[label="foldr asAs MyTrue (map (fsEsTup0 vx3) Nil)",fontsize=16,color="black",shape="box"];11 -> 13[label="",style="solid", color="black", weight=3]; 12[label="foldr asAs MyTrue (Cons (fsEsTup0 vx3 vx40) (map (fsEsTup0 vx3) vx41))",fontsize=16,color="black",shape="box"];12 -> 14[label="",style="solid", color="black", weight=3]; 13[label="foldr asAs MyTrue Nil",fontsize=16,color="black",shape="box"];13 -> 15[label="",style="solid", color="black", weight=3]; 14 -> 16[label="",style="dashed", color="red", weight=0]; 14[label="asAs (fsEsTup0 vx3 vx40) (foldr asAs MyTrue (map (fsEsTup0 vx3) vx41))",fontsize=16,color="magenta"];14 -> 17[label="",style="dashed", color="magenta", weight=3]; 15[label="MyTrue",fontsize=16,color="green",shape="box"];17 -> 9[label="",style="dashed", color="red", weight=0]; 17[label="foldr asAs MyTrue (map (fsEsTup0 vx3) vx41)",fontsize=16,color="magenta"];17 -> 18[label="",style="dashed", color="magenta", weight=3]; 16[label="asAs (fsEsTup0 vx3 vx40) vx5",fontsize=16,color="black",shape="triangle"];16 -> 19[label="",style="solid", color="black", weight=3]; 18[label="vx41",fontsize=16,color="green",shape="box"];19[label="asAs (not (esEsTup0 vx3 vx40)) vx5",fontsize=16,color="burlywood",shape="box"];27[label="vx3/Tup0",fontsize=10,color="white",style="solid",shape="box"];19 -> 27[label="",style="solid", color="burlywood", weight=9]; 27 -> 20[label="",style="solid", color="burlywood", weight=3]; 20[label="asAs (not (esEsTup0 Tup0 vx40)) vx5",fontsize=16,color="burlywood",shape="box"];28[label="vx40/Tup0",fontsize=10,color="white",style="solid",shape="box"];20 -> 28[label="",style="solid", color="burlywood", weight=9]; 28 -> 21[label="",style="solid", color="burlywood", weight=3]; 21[label="asAs (not (esEsTup0 Tup0 Tup0)) vx5",fontsize=16,color="black",shape="box"];21 -> 22[label="",style="solid", color="black", weight=3]; 22[label="asAs (not MyTrue) vx5",fontsize=16,color="black",shape="box"];22 -> 23[label="",style="solid", color="black", weight=3]; 23[label="asAs MyFalse vx5",fontsize=16,color="black",shape="box"];23 -> 24[label="",style="solid", color="black", weight=3]; 24[label="MyFalse",fontsize=16,color="green",shape="box"];} ---------------------------------------- (6) Obligation: Q DP problem: The TRS P consists of the following rules: new_foldr(vx3, Cons(vx40, vx41)) -> new_foldr(vx3, vx41) R is empty. Q is empty. We have to consider all minimal (P,Q,R)-chains. ---------------------------------------- (7) QDPSizeChangeProof (EQUIVALENT) 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. From the DPs we obtained the following set of size-change graphs: *new_foldr(vx3, Cons(vx40, vx41)) -> new_foldr(vx3, vx41) The graph contains the following edges 1 >= 1, 2 > 2 ---------------------------------------- (8) YES