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Editorial Team
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Asked: 2026-06-13T19:47:35+00:00

When using z3 to solve SMT2 files and applying a tactic, (e.g., (apply qfbv)),

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When using z3 to solve SMT2 files and applying a tactic, (e.g., “(apply qfbv)”), how do I set an option for that tactic? For example, QFBV has an option “cache-all” that by default is set to false. How can I set it to true using SMT2 files? Or is this not possible using the SMT2 language?

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1 Answer

  1. Editorial Team

    You can use the combinator using-params. The combinator ! is a shorthand for using-params.
    Here is a small example using the tactic simplify (Try it online at: http://rise4fun.com/Z3/JaZ).

    (declare-const x Int)
(declare-const y Int)

(assert (= (+ x 1) (+ y 3)))


(apply simplify)
(echo ">>>> Using arith-lhs := True, and eq2ineq := True")
(apply (using-params simplify :arith-lhs true :eq2ineq true))
;; ! is a shorthand for using-params
(apply (! simplify :arith-lhs true :eq2ineq true))
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