61 lines
2 KiB
Ruby
61 lines
2 KiB
Ruby
class Why3 < Formula
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desc "Platform for deductive program verification"
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homepage "http://why3.lri.fr/"
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url "https://gforge.inria.fr/frs/download.php/file/34797/why3-0.86.1.tar.gz"
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sha256 "a7ada8bec9b6717257f2932d8b42e5e3f2dd63800f5e9a3f4004229b0efe3389"
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bottle do
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sha256 "5926aee231e7ad43b3a3e726cc762c6e350b2a74bcc2607eb94cd6434f4fa392" => :yosemite
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sha256 "51ed66ee88d9960a8e3eb91c7ad8c0b4809a80f5cb373aea2f934fbc7701820e" => :mavericks
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sha256 "de28011d0e63a111acce1061aa8589e11dfd63d05f614b8e49c0e0a6bb03d221" => :mountain_lion
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end
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depends_on "menhir"
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depends_on "objective-caml"
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depends_on "coq" => :optional
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depends_on "lablgtk" => :optional
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depends_on "hevea" => [:build, :optional]
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depends_on "rubber" => :build
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def install
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system "./configure", "--enable-verbose-make",
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"--prefix=#{prefix}"
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system "make"
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system "make", "install"
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end
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test do
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(testpath/"max_sum.mlw").write <<-EOS.undent
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module MaxAndSum
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use import int.Int
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use import ref.Ref
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use import array.Array
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let max_sum (a: array int) (n: int)
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requires { 0 <= n = length a }
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requires { forall i:int. 0 <= i < n -> a[i] >= 0 }
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returns { sum, max -> sum <= n * max }
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= let sum = ref 0 in
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let max = ref 0 in
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for i = 0 to n - 1 do
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invariant { !sum <= i * !max }
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if !max < a[i] then max := a[i];
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sum := !sum + a[i]
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done;
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(!sum, !max)
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let test () =
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let n = 10 in
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let a = make n 0 in
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a[0] <- 9; a[1] <- 5; a[2] <- 0; a[3] <- 2; a[4] <- 7;
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a[5] <- 3; a[6] <- 2; a[7] <- 1; a[8] <- 10; a[9] <- 6;
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max_sum a n
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end
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EOS
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expected = <<-EOS.undent
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Execution of MaxAndSum.test ():
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type: (int, int)
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result: (45, 10)
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globals:
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EOS
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assert_equal expected.strip, shell_output("#{bin}/why3 execute max_sum.mlw MaxAndSum.test").strip
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end
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end
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