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Nikolaj Bjorner 2023-12-09 13:10:47 -08:00
parent 30c874d301
commit 0dd4f0cf71
10 changed files with 479 additions and 1 deletions
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src/sat/smt/polysat/fixed_bits.h Normal file
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/*++
Copyright (c) 2022 Microsoft Corporation
Module Name:
Extract fixed bits of variables from univariate constraints
Author:
Jakob Rath, Nikolaj Bjorner (nbjorner), Clemens Eisenhofer 2022-08-22
--*/
#pragma once
#include "sat/smt/polysat/polysat_types.h"
#include "sat/smt/polysat/polysat_constraints.h"
#include "util/vector.h"
namespace polysat {
using fixed_bits_vector = vector<fixed_bits>;
bool get_eq_fixed_lsb(pdd const& p, fixed_bits& out);
bool get_eq_fixed_bits(pdd const& p, fixed_bits& out);
bool get_ule_fixed_lsb(pdd const& lhs, pdd const& rhs, bool is_positive, fixed_bits& out);
bool get_ule_fixed_msb(pdd const& lhs, pdd const& rhs, bool is_positive, fixed_bits& out);
bool get_ule_fixed_bit(pdd const& lhs, pdd const& rhs, bool is_positive, fixed_bits& out);
bool get_ule_fixed_bits(pdd const& lhs, pdd const& rhs, bool is_positive, fixed_bits& out);
bool get_fixed_bits(signed_constraint c, fixed_bits& out);
}