在 SMT-LIB 2 中截断整数，如 C

Question

I'm passing the symbolic output of a symbolic execution engine to Z3 in SMT-LIB 2 format. I need it to truncate integers like they would be in C. So that (assert (= 1 (/ 3 2))) would be SAT .

These formulas might also have floats, so not all divisions should truncate. Just division of ints.

How does one do this?

Answer 1

Integer division is simply called div :

(assert (= 1 (div 3 2)))
(check-sat)

This produces:

sat