optimize Class Reference

#include <z3++.h>

Inheritance diagram for optimize:

Data Structures
class	handle

Public Member Functions
	optimize (context &c)
	optimize (optimize const &o)
	optimize (context &c, optimize &src)
optimize &	operator= (optimize const &o)
	~optimize () override
	operator Z3_optimize () const
void	add (expr const &e)
void	add (expr_vector const &es)
void	add (expr const &e, expr const &t)
void	add (expr const &e, char const *p)
handle	add_soft (expr const &e, unsigned weight)
handle	add_soft (expr const &e, char const *weight)
handle	add (expr const &e, unsigned weight)
void	set_initial_value (expr const &var, expr const &value)
void	set_initial_value (expr const &var, int i)
void	set_initial_value (expr const &var, bool b)
handle	maximize (expr const &e)
handle	minimize (expr const &e)
void	push ()
void	pop ()
check_result	check ()
check_result	check (expr_vector const &asms)
model	get_model () const
expr_vector	unsat_core () const
void	set (params const &p)
expr	lower (handle const &h)
expr	upper (handle const &h)
expr_vector	assertions () const
expr_vector	objectives () const
stats	statistics () const
void	from_file (char const *filename)
void	from_string (char const *constraints)
std::string	help () const
Public Member Functions inherited from object
	object (context &c)
virtual	~object ()=default
context &	ctx () const
Z3_error_code	check_error () const

Friends
std::ostream &	operator<< (std::ostream &out, optimize const &s)

Additional Inherited Members
Protected Attributes inherited from object
context *	m_ctx

Detailed Description

Definition at line 3312 of file z3++.h.

Constructor & Destructor Documentation

optimize() [1/3]

optimize ( context & c )

inline

Definition at line 3322 of file z3++.h.

:object(c) { m_opt = Z3_mk_optimize(c); Z3_optimize_inc_ref(c, m_opt); }

optimize() [2/3]

optimize ( optimize const & o )

inline

Definition at line 3323 of file z3++.h.

                                    :object(o), m_opt(o.m_opt) {
            Z3_optimize_inc_ref(o.ctx(), o.m_opt);
        }

optimize() [3/3]

optimize ( context & c, optimize & src )

inline

Definition at line 3326 of file z3++.h.

                                           :object(c) {
            m_opt = Z3_mk_optimize(c); 
            Z3_optimize_inc_ref(c, m_opt);
            add(expr_vector(c, src.assertions()));
            expr_vector v(c, src.objectives());
            for (expr_vector::iterator it = v.begin(); it != v.end(); ++it) minimize(*it);
        }

~optimize()

~optimize ( )

inlineoverride

Definition at line 3340 of file z3++.h.

{ Z3_optimize_dec_ref(ctx(), m_opt); }

Member Function Documentation

add() [1/5]

void add ( expr const & e )

inline

Definition at line 3342 of file z3++.h.

                                {
            assert(e.is_bool());
            Z3_optimize_assert(ctx(), m_opt, e);
        }

Referenced by Solver::__iadd__(), optimize::add(), optimize::add(), and optimize::optimize().

add() [2/5]

void add ( expr const & e, char const * p )

inline

Definition at line 3353 of file z3++.h.

                                               {
            assert(e.is_bool());
            add(e, ctx().bool_const(p));
        }

Referenced by Solver::__iadd__().

add() [3/5]

void add ( expr const & e, expr const & t )

inline

Definition at line 3349 of file z3++.h.

                                               {
            assert(e.is_bool());
            Z3_optimize_assert_and_track(ctx(), m_opt, e, t);
        }

Referenced by Solver::__iadd__().

add() [4/5]

handle add ( expr const & e, unsigned weight )

inline

Definition at line 3366 of file z3++.h.

                                                   {
            return add_soft(e, weight);
        }

Referenced by Solver::__iadd__().

add() [5/5]

void add ( expr_vector const & es )

inline

Definition at line 3346 of file z3++.h.

                                        {
            for (expr_vector::iterator it = es.begin(); it != es.end(); ++it) add(*it);
        }

Referenced by Solver::__iadd__().

add_soft() [1/2]

handle add_soft ( expr const & e, char const * weight )

inline

Definition at line 3362 of file z3++.h.

                                                           {
            assert(e.is_bool());
            return handle(Z3_optimize_assert_soft(ctx(), m_opt, e, weight, 0));
        }

add_soft() [2/2]

handle add_soft ( expr const & e, unsigned weight )

inline

Definition at line 3357 of file z3++.h.

                                                        {
            assert(e.is_bool());
            auto str = std::to_string(weight);
            return handle(Z3_optimize_assert_soft(ctx(), m_opt, e, str.c_str(), 0));
        }

Referenced by optimize::add().

assertions()

expr_vector assertions ( ) const

inline

Definition at line 3417 of file z3++.h.

{ Z3_ast_vector r = Z3_optimize_get_assertions(ctx(), m_opt); check_error(); return expr_vector(ctx(), r); }

Referenced by optimize::optimize().

check() [1/2]

check_result check ( )

inline

Definition at line 3392 of file z3++.h.

{ Z3_lbool r = Z3_optimize_check(ctx(), m_opt, 0, 0); check_error(); return to_check_result(r); }

check() [2/2]

check_result check ( expr_vector const & asms )

inline

Definition at line 3393 of file z3++.h.

                                                    {
            unsigned n = asms.size();
            array<Z3_ast> _asms(n);
            for (unsigned i = 0; i < n; i++) {
                check_context(*this, asms[i]);
                _asms[i] = asms[i];
            }
            Z3_lbool r = Z3_optimize_check(ctx(), m_opt, n, _asms.ptr());
            check_error();
            return to_check_result(r);
        }

from_file()

void from_file ( char const * filename )

inline

Definition at line 3421 of file z3++.h.

{ Z3_optimize_from_file(ctx(), m_opt, filename); check_error(); }

from_string()

void from_string ( char const * constraints )

inline

Definition at line 3422 of file z3++.h.

{ Z3_optimize_from_string(ctx(), m_opt, constraints); check_error(); }

get_model()

model get_model ( ) const

inline

Definition at line 3404 of file z3++.h.

{ Z3_model m = Z3_optimize_get_model(ctx(), m_opt); check_error(); return model(ctx(), m); }

help()

std::string help ( ) const

inline

Definition at line 3423 of file z3++.h.

{ char const * r = Z3_optimize_get_help(ctx(), m_opt); check_error();  return r; }

lower()

expr lower ( handle const & h )

inline

Definition at line 3407 of file z3++.h.

                                    {
            Z3_ast r = Z3_optimize_get_lower(ctx(), m_opt, h.h());
            check_error();
            return expr(ctx(), r);
        }

maximize()

handle maximize ( expr const & e )

inline

Definition at line 3380 of file z3++.h.

                                       {
            return handle(Z3_optimize_maximize(ctx(), m_opt, e));
        }

minimize()

handle minimize ( expr const & e )

inline

Definition at line 3383 of file z3++.h.

                                       {
            return handle(Z3_optimize_minimize(ctx(), m_opt, e));
        }

Referenced by optimize::optimize().

objectives()

expr_vector objectives ( ) const

inline

Definition at line 3418 of file z3++.h.

{ Z3_ast_vector r = Z3_optimize_get_objectives(ctx(), m_opt); check_error(); return expr_vector(ctx(), r); }

Referenced by optimize::optimize().

operator Z3_optimize()

operator Z3_optimize ( ) const

inline

Definition at line 3341 of file z3++.h.

{ return m_opt; }

operator=()

optimize & operator= ( optimize const & o )

inline

Definition at line 3333 of file z3++.h.

                                               {
            Z3_optimize_inc_ref(o.ctx(), o.m_opt);
            Z3_optimize_dec_ref(ctx(), m_opt);
            m_opt = o.m_opt;
            object::operator=(o);
            return *this;
        }

pop()

void pop ( )

inline

Definition at line 3389 of file z3++.h.

                   {
            Z3_optimize_pop(ctx(), m_opt);
        }

Referenced by Solver::__exit__().

push()

void push ( )

inline

Definition at line 3386 of file z3++.h.

                    {
            Z3_optimize_push(ctx(), m_opt);
        }

Referenced by Solver::__enter__().

set()

void set ( params const & p )

inline

Definition at line 3406 of file z3++.h.

{ Z3_optimize_set_params(ctx(), m_opt, p); check_error(); }

set_initial_value() [1/3]

void set_initial_value ( expr const & var, bool b )

inline

Definition at line 3376 of file z3++.h.

                                                        {
            set_initial_value(var, ctx().bool_val(b));            
        }

set_initial_value() [2/3]

void set_initial_value ( expr const & var, expr const & value )

inline

Definition at line 3369 of file z3++.h.

                                                                   {
            Z3_optimize_set_initial_value(ctx(), m_opt, var, value);
            check_error();
        }

Referenced by optimize::set_initial_value(), and optimize::set_initial_value().

set_initial_value() [3/3]

void set_initial_value ( expr const & var, int i )

inline

Definition at line 3373 of file z3++.h.

                                                       {
            set_initial_value(var, ctx().num_val(i, var.get_sort()));
        }

statistics()

stats statistics ( ) const

inline

Definition at line 3419 of file z3++.h.

{ Z3_stats r = Z3_optimize_get_statistics(ctx(), m_opt); check_error(); return stats(ctx(), r); }

unsat_core()

expr_vector unsat_core ( ) const

inline

Definition at line 3405 of file z3++.h.

{ Z3_ast_vector r = Z3_optimize_get_unsat_core(ctx(), m_opt); check_error(); return expr_vector(ctx(), r); }

upper()

expr upper ( handle const & h )

inline

Definition at line 3412 of file z3++.h.

                                    {
            Z3_ast r = Z3_optimize_get_upper(ctx(), m_opt, h.h());
            check_error();
            return expr(ctx(), r);
        }

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream & out, optimize const & s )

friend

Definition at line 3425 of file z3++.h.

{ out << Z3_optimize_to_string(s.ctx(), s.m_opt); return out; }