z3-src 503.2.1

Source distribution of the Z3 SMT solver, for use as a build dependency
Documentation 
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/*++
Copyright (c) 2015 Microsoft Corporation

--*/


#include "ast/converters/horn_subsume_model_converter.h"
#include "ast/arith_decl_plugin.h"
#include "model/model_smt2_pp.h"
#include "ast/reg_decl_plugins.h"
#include <iostream>

void tst_horn_subsume_model_converter() {
    ast_manager m;
    reg_decl_plugins(m);
    arith_util a(m);

    ptr_vector<sort> ints;
    ints.push_back(a.mk_int());
    ints.push_back(a.mk_int());
    ints.push_back(a.mk_int());

    func_decl_ref p(m), q(m), r(m);
    p = m.mk_func_decl(symbol("p"), 2, ints.data(), m.mk_bool_sort());
    q = m.mk_func_decl(symbol("q"), 2, ints.data(), m.mk_bool_sort());
    r = m.mk_func_decl(symbol("r"), 2, ints.data(), m.mk_bool_sort());

    ref<horn_subsume_model_converter> mc = alloc(horn_subsume_model_converter,m);
    model_ref mr = alloc(model, m);

    {
        expr_ref rhs(a.mk_numeral(rational(1), true), m);
        expr_ref third(a.mk_numeral(rational(2), true), m);
        mc->insert(p, m.mk_app(q.get(), rhs, third));
    }

    model_converter_ref mcr = mc.get();
    apply(mcr, mr);
    model_smt2_pp(std::cout, m, *mr.get(), 0);

    mr = alloc(model, m);
    {
        expr_ref rhs(a.mk_numeral(rational(3), true), m);
        expr_ref third(a.mk_numeral(rational(5), true), m);
        mc->insert(p, m.mk_app(q.get(), rhs, third));
    }
    apply(mcr, mr);
    model_smt2_pp(std::cout, m, *mr.get(), 0);

    mr = alloc(model, m);
    {
        expr_ref rhs(m.mk_var(0, a.mk_int()), m);
        expr_ref third(m.mk_var(1, a.mk_int()), m);
        mc->insert(p, m.mk_app(r.get(), rhs, third));
    }
    apply(mcr, mr);
    model_smt2_pp(std::cout, m, *mr.get(), 0);

    mr = alloc(model, m);
    app_ref head1(m);
    expr_ref body1(m), body2(m);
    func_decl_ref pred(m);
    {
        expr_ref rhs(m.mk_var(0, a.mk_int()), m);
        expr_ref third(m.mk_var(0, a.mk_int()), m);
        head1 = m.mk_app(p.get(), rhs, third);
    }
    {
        expr_ref rhs(m.mk_var(1, a.mk_int()), m);
        expr_ref third(m.mk_var(2, a.mk_int()), m);
        body1 = m.mk_app(q.get(), rhs, third);
    }
    VERIFY(mc->mk_horn(head1, body1, pred, body2));
    mc->insert(pred, body2); 
    apply(mcr, mr);
    model_smt2_pp(std::cout, m, *mr.get(), 0);

    mr = alloc(model, m);
    {
        expr_ref rhs(m.mk_var(0, a.mk_int()), m);
        expr_ref third(m.mk_var(0, a.mk_int()), m);
        head1 = m.mk_app(p.get(), rhs, third);
    }
    {
        expr_ref rhs(m.mk_var(1, a.mk_int()), m);
        expr_ref third(m.mk_var(0, a.mk_int()), m);
        body1 = m.mk_app(q.get(), rhs, third);
    }
    VERIFY(mc->mk_horn(head1, body1, pred, body2));
    mc->insert(pred, body2); 
    apply(mcr, mr);
    model_smt2_pp(std::cout, m, *mr.get(), 0);


}