1
我正尝试使用C++/C API for z3(v4.5.1)加载smt2文件,然后使用API添加断言,数据类型以及在smt2文件中声明的函数。在使用C++ API加载smt2文件后向Z3添加断言
这里是我做的一个文件加载到求解一个例子:
solver loadBackgroundTheoryFile(context& c, string filename) {
Z3_ast ast = Z3_parse_smtlib2_file(c, filename.c_str(), 0, 0, 0, 0, 0, 0);
Z3_solver c_solver;
expr e(c, ast);
solver s(c);
s.add(e);
return s;
}
int main() {
context g;
solver s = loadBackgroundTheoryFile(g, "family.smt2");
std::cout << s << std::endl;
// Here it shows that the solver has all the contents of the family.smt2 file
return 0;
}
因此,我怎么用什么在SMT2文件中定义,使用C或C++ API? (如果可能的话)。我想做更多的断言,得到一个模型,然后使用smt2文件中定义的函数和数据类型进行评估。这里是smt2文件的内容,如果有人感兴趣:
;(declare-sort Person)
(declare-datatypes() ((Person (person (name String)))))
(declare-fun related (Person Person) Bool)
(declare-fun father (Person Person) Bool)
(declare-fun sibling (Person Person) Bool)
; related symetric
(assert
(forall ((p Person) (q Person))
(=> (related p q)
(related q p))))
; related transitive
(assert
(forall ((p Person) (q Person) (j Person))
(=> (and (related p q) (related q j))
(related p j))))
; the father of a person is related to that person
(assert
(forall ((p Person) (q Person))
(=> (father p q)
(related p q))))
; for all people, there exists another person that is their father
(assert
(forall ((p Person))
(exists ((q Person)) (father q p))))
; sibling symetric
(assert
(forall ((p Person) (q Person))
(=> (sibling p q) (sibling q p))))
; siblings have the same father
(assert
(forall ((p Person) (q Person) (j Person))
(=> (and (sibling p q) (father j p))
(father j q))))
(declare-fun get-father (Person) Person)
; here we use a double implication to define the behavior of get-father
(assert
(forall ((p Person) (q Person))
(= (father q p) (= (get-father p) q))))
谢谢,我收到了关于问题的回复。 https://github.com/Z3Prover/z3/issues/966#issuecomment-292287734 –