7.87/4.32 YES 9.27/4.79 proof of /export/starexec/sandbox/benchmark/theBenchmark.hs 9.27/4.79 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.27/4.79 9.27/4.79 9.27/4.79 H-Termination with start terms of the given HASKELL could be proven: 9.27/4.79 9.27/4.79 (0) HASKELL 9.27/4.79 (1) BR [EQUIVALENT, 0 ms] 9.27/4.79 (2) HASKELL 9.27/4.79 (3) COR [EQUIVALENT, 0 ms] 9.27/4.79 (4) HASKELL 9.27/4.79 (5) Narrow [EQUIVALENT, 20 ms] 9.27/4.79 (6) YES 9.27/4.79 9.27/4.79 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (0) 9.27/4.79 Obligation: 9.27/4.79 mainModule Main 9.27/4.79 module Main where { 9.27/4.79 import qualified Prelude; 9.27/4.79 data Integer = Integer MyInt ; 9.27/4.79 9.27/4.79 data MyInt = Pos Main.Nat | Neg Main.Nat ; 9.27/4.79 9.27/4.79 data Main.Nat = Succ Main.Nat | Zero ; 9.27/4.79 9.27/4.79 data Ratio a = CnPc a a ; 9.27/4.79 9.27/4.79 fromIntMyInt :: MyInt -> MyInt; 9.27/4.79 fromIntMyInt x = x; 9.27/4.79 9.27/4.79 fromIntegerMyInt :: Integer -> MyInt; 9.27/4.79 fromIntegerMyInt (Integer x) = x; 9.27/4.79 9.27/4.79 fromIntegerRatio :: Integer -> Ratio MyInt; 9.27/4.79 fromIntegerRatio x = CnPc (fromIntegerMyInt x) (fromIntMyInt (Main.Pos (Main.Succ Main.Zero))); 9.27/4.79 9.27/4.79 fromIntegral = pt fromIntegerRatio toIntegerMyInt; 9.27/4.79 9.27/4.79 pt :: (a -> c) -> (b -> a) -> b -> c; 9.27/4.79 pt f g x = f (g x); 9.27/4.79 9.27/4.79 toIntegerMyInt :: MyInt -> Integer; 9.27/4.79 toIntegerMyInt x = Integer x; 9.27/4.79 9.27/4.79 } 9.27/4.79 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (1) BR (EQUIVALENT) 9.27/4.79 Replaced joker patterns by fresh variables and removed binding patterns. 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (2) 9.27/4.79 Obligation: 9.27/4.79 mainModule Main 9.27/4.79 module Main where { 9.27/4.79 import qualified Prelude; 9.27/4.79 data Integer = Integer MyInt ; 9.27/4.79 9.27/4.79 data MyInt = Pos Main.Nat | Neg Main.Nat ; 9.27/4.79 9.27/4.79 data Main.Nat = Succ Main.Nat | Zero ; 9.27/4.79 9.27/4.79 data Ratio a = CnPc a a ; 9.27/4.79 9.27/4.79 fromIntMyInt :: MyInt -> MyInt; 9.27/4.79 fromIntMyInt x = x; 9.27/4.79 9.27/4.79 fromIntegerMyInt :: Integer -> MyInt; 9.27/4.79 fromIntegerMyInt (Integer x) = x; 9.27/4.79 9.27/4.79 fromIntegerRatio :: Integer -> Ratio MyInt; 9.27/4.79 fromIntegerRatio x = CnPc (fromIntegerMyInt x) (fromIntMyInt (Main.Pos (Main.Succ Main.Zero))); 9.27/4.79 9.27/4.79 fromIntegral = pt fromIntegerRatio toIntegerMyInt; 9.27/4.79 9.27/4.79 pt :: (c -> b) -> (a -> c) -> a -> b; 9.27/4.79 pt f g x = f (g x); 9.27/4.79 9.27/4.79 toIntegerMyInt :: MyInt -> Integer; 9.27/4.79 toIntegerMyInt x = Integer x; 9.27/4.79 9.27/4.79 } 9.27/4.79 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (3) COR (EQUIVALENT) 9.27/4.79 Cond Reductions: 9.27/4.79 The following Function with conditions 9.27/4.79 "undefined |Falseundefined; 9.27/4.79 " 9.27/4.79 is transformed to 9.27/4.79 "undefined = undefined1; 9.27/4.79 " 9.27/4.79 "undefined0 True = undefined; 9.27/4.79 " 9.27/4.79 "undefined1 = undefined0 False; 9.27/4.79 " 9.27/4.79 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (4) 9.27/4.79 Obligation: 9.27/4.79 mainModule Main 9.27/4.79 module Main where { 9.27/4.79 import qualified Prelude; 9.27/4.79 data Integer = Integer MyInt ; 9.27/4.79 9.27/4.79 data MyInt = Pos Main.Nat | Neg Main.Nat ; 9.27/4.79 9.27/4.79 data Main.Nat = Succ Main.Nat | Zero ; 9.27/4.79 9.27/4.79 data Ratio a = CnPc a a ; 9.27/4.79 9.27/4.79 fromIntMyInt :: MyInt -> MyInt; 9.27/4.79 fromIntMyInt x = x; 9.27/4.79 9.27/4.79 fromIntegerMyInt :: Integer -> MyInt; 9.27/4.79 fromIntegerMyInt (Integer x) = x; 9.27/4.79 9.27/4.79 fromIntegerRatio :: Integer -> Ratio MyInt; 9.27/4.79 fromIntegerRatio x = CnPc (fromIntegerMyInt x) (fromIntMyInt (Main.Pos (Main.Succ Main.Zero))); 9.27/4.79 9.27/4.79 fromIntegral = pt fromIntegerRatio toIntegerMyInt; 9.27/4.79 9.27/4.79 pt :: (a -> b) -> (c -> a) -> c -> b; 9.27/4.79 pt f g x = f (g x); 9.27/4.79 9.27/4.79 toIntegerMyInt :: MyInt -> Integer; 9.27/4.79 toIntegerMyInt x = Integer x; 9.27/4.79 9.27/4.79 } 9.27/4.79 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (5) Narrow (EQUIVALENT) 9.27/4.79 Haskell To QDPs 9.27/4.79 9.27/4.79 digraph dp_graph { 9.27/4.79 node [outthreshold=100, inthreshold=100];1[label="fromIntegral",fontsize=16,color="grey",shape="box"];1 -> 3[label="",style="dashed", color="grey", weight=3]; 9.27/4.79 3[label="fromIntegral vx3",fontsize=16,color="black",shape="triangle"];3 -> 4[label="",style="solid", color="black", weight=3]; 9.27/4.79 4[label="pt fromIntegerRatio toIntegerMyInt vx3",fontsize=16,color="black",shape="box"];4 -> 5[label="",style="solid", color="black", weight=3]; 9.27/4.79 5[label="fromIntegerRatio (toIntegerMyInt vx3)",fontsize=16,color="black",shape="box"];5 -> 6[label="",style="solid", color="black", weight=3]; 9.27/4.79 6[label="CnPc (fromIntegerMyInt (toIntegerMyInt vx3)) (fromIntMyInt (Pos (Succ Zero)))",fontsize=16,color="green",shape="box"];6 -> 7[label="",style="dashed", color="green", weight=3]; 9.27/4.79 6 -> 8[label="",style="dashed", color="green", weight=3]; 9.27/4.79 7[label="fromIntegerMyInt (toIntegerMyInt vx3)",fontsize=16,color="black",shape="box"];7 -> 9[label="",style="solid", color="black", weight=3]; 9.27/4.79 8[label="fromIntMyInt (Pos (Succ Zero))",fontsize=16,color="black",shape="box"];8 -> 10[label="",style="solid", color="black", weight=3]; 9.27/4.79 9[label="fromIntegerMyInt (Integer vx3)",fontsize=16,color="black",shape="box"];9 -> 11[label="",style="solid", color="black", weight=3]; 9.27/4.79 10[label="Pos (Succ Zero)",fontsize=16,color="green",shape="box"];11[label="vx3",fontsize=16,color="green",shape="box"];} 9.27/4.79 9.27/4.79 ---------------------------------------- 9.27/4.79 9.27/4.79 (6) 9.27/4.79 YES 9.57/4.87 EOF