Z3
Public Member Functions | Friends
goal Class Reference
+ Inheritance diagram for goal:

Public Member Functions

 goal (context &c, bool models=true, bool unsat_cores=false, bool proofs=false)
 
 goal (context &c, Z3_goal s)
 
 goal (goal const &s)
 
 ~goal ()
 
 operator Z3_goal () const
 
goaloperator= (goal const &s)
 
void add (expr const &f)
 
unsigned size () const
 
expr operator[] (int i) const
 
Z3_goal_prec precision () const
 
bool inconsistent () const
 
unsigned depth () const
 
void reset ()
 
unsigned num_exprs () const
 
bool is_decided_sat () const
 
bool is_decided_unsat () const
 
model convert_model (model const &m) const
 
model get_model () const
 
expr as_expr () const
 
std::string dimacs () const
 
- Public Member Functions inherited from object
 object (context &c)
 
 object (object const &s)
 
contextctx () const
 
Z3_error_code check_error () const
 

Friends

std::ostream & operator<< (std::ostream &out, goal const &g)
 

Additional Inherited Members

- Protected Attributes inherited from object
contextm_ctx
 

Detailed Description

Definition at line 2332 of file z3++.h.

Constructor & Destructor Documentation

◆ goal() [1/3]

goal ( context c,
bool  models = true,
bool  unsat_cores = false,
bool  proofs = false 
)
inline

Definition at line 2339 of file z3++.h.

2339 :object(c) { init(Z3_mk_goal(c, models, unsat_cores, proofs)); }
Z3_goal Z3_API Z3_mk_goal(Z3_context c, bool models, bool unsat_cores, bool proofs)
Create a goal (aka problem). A goal is essentially a set of formulas, that can be solved and/or trans...
object(context &c)
Definition: z3++.h:402

◆ goal() [2/3]

goal ( context c,
Z3_goal  s 
)
inline

Definition at line 2340 of file z3++.h.

2340 :object(c) { init(s); }
object(context &c)
Definition: z3++.h:402

◆ goal() [3/3]

goal ( goal const &  s)
inline

Definition at line 2341 of file z3++.h.

2341 :object(s) { init(s.m_goal); }
object(context &c)
Definition: z3++.h:402

◆ ~goal()

~goal ( )
inline

Definition at line 2342 of file z3++.h.

2342 { Z3_goal_dec_ref(ctx(), m_goal); }
context & ctx() const
Definition: z3++.h:404
void Z3_API Z3_goal_dec_ref(Z3_context c, Z3_goal g)
Decrement the reference counter of the given goal.

Member Function Documentation

◆ add()

void add ( expr const &  f)
inline

Definition at line 2351 of file z3++.h.

2351 { check_context(*this, f); Z3_goal_assert(ctx(), m_goal, f); check_error(); }
Z3_error_code check_error() const
Definition: z3++.h:405
context & ctx() const
Definition: z3++.h:404
friend void check_context(object const &a, object const &b)
Definition: z3++.h:408
void Z3_API Z3_goal_assert(Z3_context c, Z3_goal g, Z3_ast a)
Add a new formula a to the given goal. The formula is split according to the following procedure that...

◆ as_expr()

expr as_expr ( ) const
inline

Definition at line 2373 of file z3++.h.

2373  {
2374  unsigned n = size();
2375  if (n == 0)
2376  return ctx().bool_val(true);
2377  else if (n == 1)
2378  return operator[](0);
2379  else {
2380  array<Z3_ast> args(n);
2381  for (unsigned i = 0; i < n; i++)
2382  args[i] = operator[](i);
2383  return expr(ctx(), Z3_mk_and(ctx(), n, args.ptr()));
2384  }
2385  }
unsigned size() const
Definition: z3++.h:2353
expr operator[](int i) const
Definition: z3++.h:2354
context & ctx() const
Definition: z3++.h:404
Z3_ast Z3_API Z3_mk_and(Z3_context c, unsigned num_args, Z3_ast const args[])
Create an AST node representing args[0] and ... and args[num_args-1].
expr bool_val(bool b)
Definition: z3++.h:2916

◆ convert_model()

model convert_model ( model const &  m) const
inline

Definition at line 2362 of file z3++.h.

2362  {
2363  check_context(*this, m);
2364  Z3_model new_m = Z3_goal_convert_model(ctx(), m_goal, m);
2365  check_error();
2366  return model(ctx(), new_m);
2367  }
Z3_error_code check_error() const
Definition: z3++.h:405
Z3_model Z3_API Z3_goal_convert_model(Z3_context c, Z3_goal g, Z3_model m)
Convert a model of the formulas of a goal to a model of an original goal. The model may be null,...
context & ctx() const
Definition: z3++.h:404
friend void check_context(object const &a, object const &b)
Definition: z3++.h:408

◆ depth()

unsigned depth ( ) const
inline

Definition at line 2357 of file z3++.h.

2357 { return Z3_goal_depth(ctx(), m_goal); }
context & ctx() const
Definition: z3++.h:404
unsigned Z3_API Z3_goal_depth(Z3_context c, Z3_goal g)
Return the depth of the given goal. It tracks how many transformations were applied to it.

◆ dimacs()

std::string dimacs ( ) const
inline

Definition at line 2386 of file z3++.h.

2386 { return std::string(Z3_goal_to_dimacs_string(ctx(), m_goal)); }
Z3_string Z3_API Z3_goal_to_dimacs_string(Z3_context c, Z3_goal g)
Convert a goal into a DIMACS formatted string. The goal must be in CNF. You can convert a goal to CNF...
context & ctx() const
Definition: z3++.h:404

◆ get_model()

model get_model ( ) const
inline

Definition at line 2368 of file z3++.h.

2368  {
2369  Z3_model new_m = Z3_goal_convert_model(ctx(), m_goal, 0);
2370  check_error();
2371  return model(ctx(), new_m);
2372  }
Z3_error_code check_error() const
Definition: z3++.h:405
Z3_model Z3_API Z3_goal_convert_model(Z3_context c, Z3_goal g, Z3_model m)
Convert a model of the formulas of a goal to a model of an original goal. The model may be null,...
context & ctx() const
Definition: z3++.h:404

◆ inconsistent()

bool inconsistent ( ) const
inline

Definition at line 2356 of file z3++.h.

2356 { return Z3_goal_inconsistent(ctx(), m_goal); }
bool Z3_API Z3_goal_inconsistent(Z3_context c, Z3_goal g)
Return true if the given goal contains the formula false.
context & ctx() const
Definition: z3++.h:404

◆ is_decided_sat()

bool is_decided_sat ( ) const
inline

Definition at line 2360 of file z3++.h.

2360 { return Z3_goal_is_decided_sat(ctx(), m_goal); }
context & ctx() const
Definition: z3++.h:404
bool Z3_API Z3_goal_is_decided_sat(Z3_context c, Z3_goal g)
Return true if the goal is empty, and it is precise or the product of a under approximation.

◆ is_decided_unsat()

bool is_decided_unsat ( ) const
inline

Definition at line 2361 of file z3++.h.

2361 { return Z3_goal_is_decided_unsat(ctx(), m_goal); }
bool Z3_API Z3_goal_is_decided_unsat(Z3_context c, Z3_goal g)
Return true if the goal contains false, and it is precise or the product of an over approximation.
context & ctx() const
Definition: z3++.h:404

◆ num_exprs()

unsigned num_exprs ( ) const
inline

Definition at line 2359 of file z3++.h.

2359 { return Z3_goal_num_exprs(ctx(), m_goal); }
context & ctx() const
Definition: z3++.h:404
unsigned Z3_API Z3_goal_num_exprs(Z3_context c, Z3_goal g)
Return the number of formulas, subformulas and terms in the given goal.

◆ operator Z3_goal()

operator Z3_goal ( ) const
inline

Definition at line 2343 of file z3++.h.

2343 { return m_goal; }

◆ operator=()

goal& operator= ( goal const &  s)
inline

Definition at line 2344 of file z3++.h.

2344  {
2345  Z3_goal_inc_ref(s.ctx(), s.m_goal);
2346  Z3_goal_dec_ref(ctx(), m_goal);
2347  m_ctx = s.m_ctx;
2348  m_goal = s.m_goal;
2349  return *this;
2350  }
context & ctx() const
Definition: z3++.h:404
void Z3_API Z3_goal_dec_ref(Z3_context c, Z3_goal g)
Decrement the reference counter of the given goal.
void Z3_API Z3_goal_inc_ref(Z3_context c, Z3_goal g)
Increment the reference counter of the given goal.
context * m_ctx
Definition: z3++.h:400

◆ operator[]()

expr operator[] ( int  i) const
inline

Definition at line 2354 of file z3++.h.

2354 { assert(0 <= i); Z3_ast r = Z3_goal_formula(ctx(), m_goal, i); check_error(); return expr(ctx(), r); }
Z3_error_code check_error() const
Definition: z3++.h:405
context & ctx() const
Definition: z3++.h:404
Z3_ast Z3_API Z3_goal_formula(Z3_context c, Z3_goal g, unsigned idx)
Return a formula from the given goal.

Referenced by goal::as_expr().

◆ precision()

Z3_goal_prec precision ( ) const
inline

Definition at line 2355 of file z3++.h.

2355 { return Z3_goal_precision(ctx(), m_goal); }
context & ctx() const
Definition: z3++.h:404
Z3_goal_prec Z3_API Z3_goal_precision(Z3_context c, Z3_goal g)
Return the "precision" of the given goal. Goals can be transformed using over and under approximation...

◆ reset()

void reset ( )
inline

Definition at line 2358 of file z3++.h.

2358 { Z3_goal_reset(ctx(), m_goal); }
void Z3_API Z3_goal_reset(Z3_context c, Z3_goal g)
Erase all formulas from the given goal.
context & ctx() const
Definition: z3++.h:404

◆ size()

unsigned size ( ) const
inline

Definition at line 2353 of file z3++.h.

2353 { return Z3_goal_size(ctx(), m_goal); }
context & ctx() const
Definition: z3++.h:404
unsigned Z3_API Z3_goal_size(Z3_context c, Z3_goal g)
Return the number of formulas in the given goal.

Referenced by goal::as_expr().

Friends And Related Function Documentation

◆ operator<<

std::ostream& operator<< ( std::ostream &  out,
goal const &  g 
)
friend

Definition at line 2389 of file z3++.h.

2389 { out << Z3_goal_to_string(g.ctx(), g); return out; }
Z3_string Z3_API Z3_goal_to_string(Z3_context c, Z3_goal g)
Convert a goal into a string.