s09_a7

# s09_a7 - functionality of the program and then prove that...

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UNIVERSITY OF WATERLOO School of Computer Science CS245 Logic and Computation Spring 2009 ASSIGNMENT 7 (Due: Tuesday, July 28, 2009 at 5:00pm) Use makeCover to produce a cover page for your assignment and hand in your assignment in the CS245 assignment box. Assignments are to be done individually. 1. (6 marks) Verify that at the end of the following program M contains a value greater than or equal to both of A and B. if (A > B) { M = A; } else { M = B; } 2. (8 marks) Consider the following partially annotated program. Write a postcondition that describes the basic

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Unformatted text preview: functionality of the program and then prove that the program satisﬁes the precondition, postcondition pair. ( | ≤ m | ) j = 0; q = 0; while (j != m) { j = j + 1; q = q + x; } 3. (8 marks) Prove partial correctness of the following: ( | ≤ ( y ) | ) a = 0; z = 0; while (a != y) { z = z + x; a = a + 1; } ( | z = xy | )...
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s09_a7 - functionality of the program and then prove that...

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