generateOptions

    fn generateOptions(smith: *Smith) Options {
        @disableInstrumentation();

        const size_log2_weights: []const Smith.Weight = &.{
            .value(u5, 8, 1024), // 8x odds of below
            .rangeAtMost(u5, 8, 16, 16),
            .rangeAtMost(u5, 17, 31, 1), // 1/32 odds of above since these just OOM with the fixed buffer
        };
        return .{
            .stack_trace_frames = smith.valueWeighted(u16, &.{
                .value(u16, 0, 1 << 18), // 4x - stack traces have no tested properties except I.B.
                .rangeAtMost(u16, 0, math.maxInt(u16), 1),
            }),
            // If set, it is aimed to allocate much fewer bytes since freeing becomes O(n).
            // Without this, it is O(1) since mem.Allocator is bypassed so there is no memsets
            // of the data.
            .check_write_after_free = smith.valueWeighted(bool, &.{
                .value(bool, false, 31),
                .value(bool, false, 1),
            }),
            .canary = smith.value(u32),

            .block_size_log2 = smith.valueWeighted(u5, size_log2_weights),
            .bucket_size_log2 = smith.valueWeighted(u5, size_log2_weights),
        };
    }