bool ast::is_taut(z3::solver& solver, const z3::expr& expr) {
solver.push();
solver.add(!expr);
auto res = solver.check();
solver.pop();
return res == z3::unsat;
}
void addConstraintsToSolver(z3::solver &solver)
{
std::vector<z3::expr*>::iterator it;
for (it = _inputNodes.begin(); it != _inputNodes.end(); ++it)
{
(*it)->simplify();
solver.add(*(*it));
}
for (it = _outputNodes.begin(); it != _outputNodes.end(); ++it)
{
(*it)->simplify();
solver.add(*(*it));
}
// FIXME : remove because not a condition
// for (it = _hiddenNodes.begin(); it != _hiddenNodes.end(); ++it)
// solver.add(*(*it));
}