8.63/3.78 YES 10.47/4.29 proof of /export/starexec/sandbox2/benchmark/theBenchmark.hs 10.47/4.29 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 10.47/4.29 10.47/4.29 10.47/4.29 H-Termination with start terms of the given HASKELL could be proven: 10.47/4.29 10.47/4.29 (0) HASKELL 10.47/4.29 (1) IFR [EQUIVALENT, 0 ms] 10.47/4.29 (2) HASKELL 10.47/4.29 (3) BR [EQUIVALENT, 0 ms] 10.47/4.29 (4) HASKELL 10.47/4.29 (5) COR [EQUIVALENT, 0 ms] 10.47/4.29 (6) HASKELL 10.47/4.29 (7) Narrow [EQUIVALENT, 21 ms] 10.47/4.29 (8) YES 10.47/4.29 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (0) 10.47/4.29 Obligation: 10.47/4.29 mainModule Main 10.47/4.29 module Maybe where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Main where { 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Monad where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Prelude; 10.47/4.29 when :: Monad a => Bool -> a () -> a (); 10.47/4.29 when p s = if p then s else return (); 10.47/4.29 10.47/4.29 } 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (1) IFR (EQUIVALENT) 10.47/4.29 If Reductions: 10.47/4.29 The following If expression 10.47/4.29 "if p then s else return ()" 10.47/4.29 is transformed to 10.47/4.29 "when0 s True = s; 10.47/4.29 when0 s False = return (); 10.47/4.29 " 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (2) 10.47/4.29 Obligation: 10.47/4.29 mainModule Main 10.47/4.29 module Maybe where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Main where { 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Monad where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Prelude; 10.47/4.29 when :: Monad a => Bool -> a () -> a (); 10.47/4.29 when p s = when0 s p; 10.47/4.29 10.47/4.29 when0 s True = s; 10.47/4.29 when0 s False = return (); 10.47/4.29 10.47/4.29 } 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (3) BR (EQUIVALENT) 10.47/4.29 Replaced joker patterns by fresh variables and removed binding patterns. 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (4) 10.47/4.29 Obligation: 10.47/4.29 mainModule Main 10.47/4.29 module Maybe where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Main where { 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Monad where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Prelude; 10.47/4.29 when :: Monad a => Bool -> a () -> a (); 10.47/4.29 when p s = when0 s p; 10.47/4.29 10.47/4.29 when0 s True = s; 10.47/4.29 when0 s False = return (); 10.47/4.29 10.47/4.29 } 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (5) COR (EQUIVALENT) 10.47/4.29 Cond Reductions: 10.47/4.29 The following Function with conditions 10.47/4.29 "undefined |Falseundefined; 10.47/4.29 " 10.47/4.29 is transformed to 10.47/4.29 "undefined = undefined1; 10.47/4.29 " 10.47/4.29 "undefined0 True = undefined; 10.47/4.29 " 10.47/4.29 "undefined1 = undefined0 False; 10.47/4.29 " 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (6) 10.47/4.29 Obligation: 10.47/4.29 mainModule Main 10.47/4.29 module Maybe where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Main where { 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Monad; 10.47/4.29 import qualified Prelude; 10.47/4.29 } 10.47/4.29 module Monad where { 10.47/4.29 import qualified Main; 10.47/4.29 import qualified Maybe; 10.47/4.29 import qualified Prelude; 10.47/4.29 when :: Monad a => Bool -> a () -> a (); 10.47/4.29 when p s = when0 s p; 10.47/4.29 10.47/4.29 when0 s True = s; 10.47/4.29 when0 s False = return (); 10.47/4.29 10.47/4.29 } 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (7) Narrow (EQUIVALENT) 10.47/4.29 Haskell To QDPs 10.47/4.29 10.47/4.29 digraph dp_graph { 10.47/4.29 node [outthreshold=100, inthreshold=100];1[label="Monad.when",fontsize=16,color="grey",shape="box"];1 -> 3[label="",style="dashed", color="grey", weight=3]; 10.47/4.29 3[label="Monad.when vy3",fontsize=16,color="grey",shape="box"];3 -> 4[label="",style="dashed", color="grey", weight=3]; 10.47/4.29 4[label="Monad.when vy3 vy4",fontsize=16,color="black",shape="triangle"];4 -> 5[label="",style="solid", color="black", weight=3]; 10.47/4.29 5[label="Monad.when0 vy4 vy3",fontsize=16,color="burlywood",shape="box"];11[label="vy3/False",fontsize=10,color="white",style="solid",shape="box"];5 -> 11[label="",style="solid", color="burlywood", weight=9]; 10.47/4.29 11 -> 6[label="",style="solid", color="burlywood", weight=3]; 10.47/4.29 12[label="vy3/True",fontsize=10,color="white",style="solid",shape="box"];5 -> 12[label="",style="solid", color="burlywood", weight=9]; 10.47/4.29 12 -> 7[label="",style="solid", color="burlywood", weight=3]; 10.47/4.29 6[label="Monad.when0 vy4 False",fontsize=16,color="black",shape="box"];6 -> 8[label="",style="solid", color="black", weight=3]; 10.47/4.29 7[label="Monad.when0 vy4 True",fontsize=16,color="black",shape="box"];7 -> 9[label="",style="solid", color="black", weight=3]; 10.47/4.29 8[label="return ()",fontsize=16,color="black",shape="box"];8 -> 10[label="",style="solid", color="black", weight=3]; 10.47/4.29 9[label="vy4",fontsize=16,color="green",shape="box"];10[label="() : []",fontsize=16,color="green",shape="box"];} 10.47/4.29 10.47/4.29 ---------------------------------------- 10.47/4.29 10.47/4.29 (8) 10.47/4.29 YES 10.76/4.32 EOF