C++ (Cpp) mk_expr_simp_replacer Examples

Example #1

File: quant_solve.cpp Project: CharudattaSChitale/sygus-comp14

static void validate_quant_solution(ast_manager& m, expr* fml, expr* guard, qe::def_vector const& defs) {
    // verify:
    //    new_fml => fml[t/x]
    scoped_ptr<expr_replacer> rep = mk_expr_simp_replacer(m);
    app_ref_vector xs(m);
    expr_substitution sub(m);
    for (unsigned i = 0; i < defs.size(); ++i) {
        xs.push_back(m.mk_const(defs.var(i)));
        sub.insert(xs.back(), defs.def(i));
    }
    rep->set_substitution(&sub);
    expr_ref fml1(fml, m);
    (*rep)(fml1);
    expr_ref tmp(m);
    tmp = m.mk_not(m.mk_implies(guard, fml1));
    front_end_params fp;
    smt::kernel solver(m, fp);
    solver.assert_expr(tmp);
    lbool res = solver.check();
    //SASSERT(res == l_false);
    if (res != l_false) {
        std::cout << "Validation failed: " << res << "\n";
        std::cout << mk_pp(tmp, m) << "\n";
        model_ref model;
        solver.get_model(model);
        model_smt2_pp(std::cout, m, *model, 0);
        fatal_error(0);
    }
}

Example #2

File: spacer_itp_solver.cpp Project: chadbrewbaker/z3

void itp_solver::elim_proxies (expr_ref_vector &v)
{
    expr_ref f = mk_and (v);
    scoped_ptr<expr_replacer> rep = mk_expr_simp_replacer (m);
    rep->set_substitution (&m_elim_proxies_sub);
    (*rep) (f);
    v.reset ();
    flatten_and (f, v);
}