8.52/3.75 YES 10.48/4.28 proof of /export/starexec/sandbox2/benchmark/theBenchmark.hs 10.48/4.28 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 10.48/4.28 10.48/4.28 10.48/4.28 H-Termination with start terms of the given HASKELL could be proven: 10.48/4.28 10.48/4.28 (0) HASKELL 10.48/4.28 (1) LR [EQUIVALENT, 0 ms] 10.48/4.28 (2) HASKELL 10.48/4.28 (3) BR [EQUIVALENT, 0 ms] 10.48/4.28 (4) HASKELL 10.48/4.28 (5) COR [EQUIVALENT, 0 ms] 10.48/4.28 (6) HASKELL 10.48/4.28 (7) Narrow [SOUND, 0 ms] 10.48/4.28 (8) QDP 10.48/4.28 (9) QDPSizeChangeProof [EQUIVALENT, 0 ms] 10.48/4.28 (10) YES 10.48/4.28 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (0) 10.48/4.28 Obligation: 10.48/4.28 mainModule Main 10.48/4.28 module Maybe where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Main where { 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Monad where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Prelude; 10.48/4.28 foldM :: Monad c => (a -> b -> c a) -> a -> [b] -> c a; 10.48/4.28 foldM _ a [] = return a; 10.48/4.28 foldM f a (x : xs) = f a x >>= (\fax ->foldM f fax xs); 10.48/4.28 10.48/4.28 } 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (1) LR (EQUIVALENT) 10.48/4.28 Lambda Reductions: 10.48/4.28 The following Lambda expression 10.48/4.28 "\fax->foldM f fax xs" 10.48/4.28 is transformed to 10.48/4.28 "foldM0 f xs fax = foldM f fax xs; 10.48/4.28 " 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (2) 10.48/4.28 Obligation: 10.48/4.28 mainModule Main 10.48/4.28 module Maybe where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Main where { 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Monad where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Prelude; 10.48/4.28 foldM :: Monad c => (a -> b -> c a) -> a -> [b] -> c a; 10.48/4.28 foldM _ a [] = return a; 10.48/4.28 foldM f a (x : xs) = f a x >>= foldM0 f xs; 10.48/4.28 10.48/4.28 foldM0 f xs fax = foldM f fax xs; 10.48/4.28 10.48/4.28 } 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (3) BR (EQUIVALENT) 10.48/4.28 Replaced joker patterns by fresh variables and removed binding patterns. 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (4) 10.48/4.28 Obligation: 10.48/4.28 mainModule Main 10.48/4.28 module Maybe where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Main where { 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Monad where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Prelude; 10.48/4.28 foldM :: Monad a => (b -> c -> a b) -> b -> [c] -> a b; 10.48/4.28 foldM vy a [] = return a; 10.48/4.28 foldM f a (x : xs) = f a x >>= foldM0 f xs; 10.48/4.28 10.48/4.28 foldM0 f xs fax = foldM f fax xs; 10.48/4.28 10.48/4.28 } 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (5) COR (EQUIVALENT) 10.48/4.28 Cond Reductions: 10.48/4.28 The following Function with conditions 10.48/4.28 "undefined |Falseundefined; 10.48/4.28 " 10.48/4.28 is transformed to 10.48/4.28 "undefined = undefined1; 10.48/4.28 " 10.48/4.28 "undefined0 True = undefined; 10.48/4.28 " 10.48/4.28 "undefined1 = undefined0 False; 10.48/4.28 " 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (6) 10.48/4.28 Obligation: 10.48/4.28 mainModule Main 10.48/4.28 module Maybe where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Main where { 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Monad; 10.48/4.28 import qualified Prelude; 10.48/4.28 } 10.48/4.28 module Monad where { 10.48/4.28 import qualified Main; 10.48/4.28 import qualified Maybe; 10.48/4.28 import qualified Prelude; 10.48/4.28 foldM :: Monad b => (a -> c -> b a) -> a -> [c] -> b a; 10.48/4.28 foldM vy a [] = return a; 10.48/4.28 foldM f a (x : xs) = f a x >>= foldM0 f xs; 10.48/4.28 10.48/4.28 foldM0 f xs fax = foldM f fax xs; 10.48/4.28 10.48/4.28 } 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (7) Narrow (SOUND) 10.48/4.28 Haskell To QDPs 10.48/4.28 10.48/4.28 digraph dp_graph { 10.48/4.28 node [outthreshold=100, inthreshold=100];1[label="Monad.foldM",fontsize=16,color="grey",shape="box"];1 -> 3[label="",style="dashed", color="grey", weight=3]; 10.48/4.28 3[label="Monad.foldM vz3",fontsize=16,color="grey",shape="box"];3 -> 4[label="",style="dashed", color="grey", weight=3]; 10.48/4.28 4[label="Monad.foldM vz3 vz4",fontsize=16,color="grey",shape="box"];4 -> 5[label="",style="dashed", color="grey", weight=3]; 10.48/4.28 5[label="Monad.foldM vz3 vz4 vz5",fontsize=16,color="burlywood",shape="triangle"];30[label="vz5/vz50 : vz51",fontsize=10,color="white",style="solid",shape="box"];5 -> 30[label="",style="solid", color="burlywood", weight=9]; 10.48/4.28 30 -> 6[label="",style="solid", color="burlywood", weight=3]; 10.48/4.28 31[label="vz5/[]",fontsize=10,color="white",style="solid",shape="box"];5 -> 31[label="",style="solid", color="burlywood", weight=9]; 10.48/4.28 31 -> 7[label="",style="solid", color="burlywood", weight=3]; 10.48/4.28 6[label="Monad.foldM vz3 vz4 (vz50 : vz51)",fontsize=16,color="black",shape="box"];6 -> 8[label="",style="solid", color="black", weight=3]; 10.48/4.28 7[label="Monad.foldM vz3 vz4 []",fontsize=16,color="black",shape="box"];7 -> 9[label="",style="solid", color="black", weight=3]; 10.48/4.28 8[label="vz3 vz4 vz50 >>= Monad.foldM0 vz3 vz51",fontsize=16,color="black",shape="box"];8 -> 10[label="",style="solid", color="black", weight=3]; 10.48/4.28 9[label="return vz4",fontsize=16,color="black",shape="box"];9 -> 11[label="",style="solid", color="black", weight=3]; 10.48/4.28 10 -> 12[label="",style="dashed", color="red", weight=0]; 10.48/4.28 10[label="primbindIO (vz3 vz4 vz50) (Monad.foldM0 vz3 vz51)",fontsize=16,color="magenta"];10 -> 13[label="",style="dashed", color="magenta", weight=3]; 10.48/4.28 11[label="primretIO vz4",fontsize=16,color="black",shape="box"];11 -> 14[label="",style="solid", color="black", weight=3]; 10.48/4.28 13[label="vz3 vz4 vz50",fontsize=16,color="green",shape="box"];13 -> 21[label="",style="dashed", color="green", weight=3]; 10.48/4.28 13 -> 22[label="",style="dashed", color="green", weight=3]; 10.48/4.28 12[label="primbindIO vz6 (Monad.foldM0 vz3 vz51)",fontsize=16,color="burlywood",shape="triangle"];32[label="vz6/IO vz60",fontsize=10,color="white",style="solid",shape="box"];12 -> 32[label="",style="solid", color="burlywood", weight=9]; 10.48/4.28 32 -> 17[label="",style="solid", color="burlywood", weight=3]; 10.48/4.28 33[label="vz6/AProVE_IO vz60",fontsize=10,color="white",style="solid",shape="box"];12 -> 33[label="",style="solid", color="burlywood", weight=9]; 10.48/4.28 33 -> 18[label="",style="solid", color="burlywood", weight=3]; 10.48/4.28 34[label="vz6/AProVE_Exception vz60",fontsize=10,color="white",style="solid",shape="box"];12 -> 34[label="",style="solid", color="burlywood", weight=9]; 10.48/4.28 34 -> 19[label="",style="solid", color="burlywood", weight=3]; 10.48/4.28 35[label="vz6/AProVE_Error vz60",fontsize=10,color="white",style="solid",shape="box"];12 -> 35[label="",style="solid", color="burlywood", weight=9]; 10.48/4.28 35 -> 20[label="",style="solid", color="burlywood", weight=3]; 10.48/4.28 14[label="AProVE_IO vz4",fontsize=16,color="green",shape="box"];21[label="vz4",fontsize=16,color="green",shape="box"];22[label="vz50",fontsize=16,color="green",shape="box"];17[label="primbindIO (IO vz60) (Monad.foldM0 vz3 vz51)",fontsize=16,color="black",shape="box"];17 -> 23[label="",style="solid", color="black", weight=3]; 10.48/4.28 18[label="primbindIO (AProVE_IO vz60) (Monad.foldM0 vz3 vz51)",fontsize=16,color="black",shape="box"];18 -> 24[label="",style="solid", color="black", weight=3]; 10.48/4.28 19[label="primbindIO (AProVE_Exception vz60) (Monad.foldM0 vz3 vz51)",fontsize=16,color="black",shape="box"];19 -> 25[label="",style="solid", color="black", weight=3]; 10.48/4.28 20[label="primbindIO (AProVE_Error vz60) (Monad.foldM0 vz3 vz51)",fontsize=16,color="black",shape="box"];20 -> 26[label="",style="solid", color="black", weight=3]; 10.48/4.28 23[label="error []",fontsize=16,color="red",shape="box"];24[label="Monad.foldM0 vz3 vz51 vz60",fontsize=16,color="black",shape="box"];24 -> 27[label="",style="solid", color="black", weight=3]; 10.48/4.28 25[label="AProVE_Exception vz60",fontsize=16,color="green",shape="box"];26[label="AProVE_Error vz60",fontsize=16,color="green",shape="box"];27 -> 5[label="",style="dashed", color="red", weight=0]; 10.48/4.28 27[label="Monad.foldM vz3 vz60 vz51",fontsize=16,color="magenta"];27 -> 28[label="",style="dashed", color="magenta", weight=3]; 10.48/4.28 27 -> 29[label="",style="dashed", color="magenta", weight=3]; 10.48/4.28 28[label="vz51",fontsize=16,color="green",shape="box"];29[label="vz60",fontsize=16,color="green",shape="box"];} 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (8) 10.48/4.28 Obligation: 10.48/4.28 Q DP problem: 10.48/4.28 The TRS P consists of the following rules: 10.48/4.28 10.48/4.28 new_primbindIO(vz3, vz51, h, ba) -> new_foldM(vz3, vz51, h, ba) 10.48/4.28 new_foldM(vz3, :(vz50, vz51), h, ba) -> new_primbindIO(vz3, vz51, h, ba) 10.48/4.28 10.48/4.28 R is empty. 10.48/4.28 Q is empty. 10.48/4.28 We have to consider all minimal (P,Q,R)-chains. 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (9) QDPSizeChangeProof (EQUIVALENT) 10.48/4.28 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. 10.48/4.28 10.48/4.28 From the DPs we obtained the following set of size-change graphs: 10.48/4.28 *new_foldM(vz3, :(vz50, vz51), h, ba) -> new_primbindIO(vz3, vz51, h, ba) 10.48/4.28 The graph contains the following edges 1 >= 1, 2 > 2, 3 >= 3, 4 >= 4 10.48/4.28 10.48/4.28 10.48/4.28 *new_primbindIO(vz3, vz51, h, ba) -> new_foldM(vz3, vz51, h, ba) 10.48/4.28 The graph contains the following edges 1 >= 1, 2 >= 2, 3 >= 3, 4 >= 4 10.48/4.28 10.48/4.28 10.48/4.28 ---------------------------------------- 10.48/4.28 10.48/4.28 (10) 10.48/4.28 YES 10.48/4.32 EOF