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Editorial Team
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Asked: 2026-05-27T00:44:12+00:00

How can you pretty-print bit vectors as signed decimals in Z3?

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How can you pretty-print bit vectors as signed decimals in Z3?

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  1. Editorial Team

    You can use the command (set-option :pp-bv-literals false) to force Z3 to display the bit-vector literals in a decimal based format. Actually, it will display them using the SMT 2.0 format: (_ bv<decimal> <size>). Consider the following example:

    (simplify #x00f8)
(set-option :pp-bv-literals false)
(simplify #x00f8)

    Z3 will print

    #x00f8
(_ bv248 16)

    Z3 has no support for signed decimals. We can add an option to display a bit-vector n as (bvneg (_ bv<decimal> <size>) if the most significant bit of n is 1. Is this enough for your purposes?

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