z3-z3-4.12.6.src.qe.mbp.mbp_arith.h Maven / Gradle / Ivy
/*++
Copyright (c) 2015 Microsoft Corporation
--*/
#pragma once
#include "ast/arith_decl_plugin.h"
#include "model/model.h"
#include "qe/mbp/mbp_plugin.h"
namespace mbp {
/**
Loos-Weispfenning model-based projection for a basic conjunction.
Lits is a vector of literals.
return vector of variables that could not be projected.
*/
class arith_project_plugin : public project_plugin {
struct imp;
imp* m_imp;
public:
arith_project_plugin(ast_manager& m);
~arith_project_plugin() override;
bool operator()(model& model, app* var, app_ref_vector& vars, expr_ref_vector& lits) override;
bool solve(model& model, app_ref_vector& vars, expr_ref_vector& lits) override { return false; }
family_id get_family_id() override;
bool operator()(model& model, app_ref_vector& vars, expr_ref_vector& lits) override;
bool project(model& model, app_ref_vector& vars, expr_ref_vector& lits, vector& defs) override;
void saturate(model& model, func_decl_ref_vector const& shared, expr_ref_vector& lits) override { UNREACHABLE(); }
opt::inf_eps maximize(expr_ref_vector const& fmls, model& mdl, app* t, expr_ref& ge, expr_ref& gt);
/**
* \brief check if formulas are purified, or leave it to caller to ensure that
* arithmetic variables nested under foreign functions are handled properly.
*/
void set_check_purified(bool check_purified);
/**
* \brief apply projection
*/
void set_apply_projection(bool apply_project);
};
bool arith_project(model& model, app* var, expr_ref_vector& lits);
};