46 lines
860 B
C++
46 lines
860 B
C++
|
#include <iostream>
|
||
|
|
#include <sstream>
|
||
|
|
#include<vector>
|
||
|
|
#include"z3++.h"
|
||
|
|
|
||
|
|
using namespace z3;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
find values of expressions that satisfy the following ineaualities
|
||
|
|
x >= 1
|
||
|
|
y < x +3
|
||
|
|
*/
|
||
|
|
|
||
|
|
int main(){
|
||
|
|
context c;
|
||
|
|
expr x = c.int_const("x");
|
||
|
|
expr y = c.int_const("y");
|
||
|
|
//create a solver
|
||
|
|
solver s(c);
|
||
|
|
//adding the constraints
|
||
|
|
s.add(x >=1);
|
||
|
|
s.add(y < x+3);
|
||
|
|
|
||
|
|
std::cout << s.check() << "\n\n";
|
||
|
|
|
||
|
|
model m = s.get_model();
|
||
|
|
std::cout << m << "\n";
|
||
|
|
|
||
|
|
//traversing the model
|
||
|
|
std::cout << "traversing the model" << "\n";
|
||
|
|
for (unsigned i =0; i < m.size(); i++){
|
||
|
|
func_decl v = m[i];
|
||
|
|
assert(v.arity() ==0);
|
||
|
|
std::cout << v.name()<<"="<<m.get_const_interp(v) << "\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
// evaluating the expressions in the model.
|
||
|
|
std::cout << "evaluating the expressions in the model" << "\n";
|
||
|
|
std::cout << "x+y+1= "<< m.eval(x+y+1)<<"\n";
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
} //end of function
|
||
|
|
|
||
|
|
|