Question

Axiomatic semantics I

Compute the weakest precondition for the following sequence of statements, given the stated post-condition.

Hint: Start by deciding what variable or variables should be mentioned in the precondition. Recall the rule for sequences: the precondition for a statement in a sequence is equal to the post-condition for the statement that precedes it. Note: Your answer will involve a relationship between a and b.

{ ?? }

x = 4 * (3 * y - x);

y = 2 * x - 2;

{ y > 10 }

Answer 1