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Fix binary search type

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Jeehoon Kang committed 2022-09-28 21:17:01 +09:00
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@@ -11,7 +11,7 @@ module BinarySearch
use import ref.Ref use import ref.Ref
use import array.Array use import array.Array
let binary_search (a : array int) (v : int) let binary_search (a : array int) (v : int) : int
requires { forall i1 i2 : int. 0 <= i1 < i2 < length a -> a[i1] <= a[i2] } requires { forall i1 i2 : int. 0 <= i1 < i2 < length a -> a[i1] <= a[i2] }
ensures { 0 <= result <= length a } ensures { 0 <= result <= length a }
ensures { forall i: int. 0 <= i < result -> a[i] < v } ensures { forall i: int. 0 <= i < result -> a[i] < v }