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/********************* */
/*! \file extract-new.cpp
** \verbatim
** Top contributors (to current version):
** Aina Niemetz, Makai Mann
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief A simple demonstration of the solving capabilities of the CVC4
** bit-vector solver.
**
**/
#include <iostream>
#include <cvc4/api/cvc4cpp.h>
using namespace std;
using namespace CVC4::api;
int main()
{
Solver slv;
slv.setLogic("QF_BV"); // Set the logic
Sort bitvector32 = slv.mkBitVectorSort(32);
Term x = slv.mkConst(bitvector32, "a");
Op ext_31_1 = slv.mkOp(BITVECTOR_EXTRACT, 31, 1);
Term x_31_1 = slv.mkTerm(ext_31_1, x);
Op ext_30_0 = slv.mkOp(BITVECTOR_EXTRACT, 30, 0);
Term x_30_0 = slv.mkTerm(ext_30_0, x);
Op ext_31_31 = slv.mkOp(BITVECTOR_EXTRACT, 31, 31);
Term x_31_31 = slv.mkTerm(ext_31_31, x);
Op ext_0_0 = slv.mkOp(BITVECTOR_EXTRACT, 0, 0);
Term x_0_0 = slv.mkTerm(ext_0_0, x);
Term eq = slv.mkTerm(EQUAL, x_31_1, x_30_0);
cout << " Asserting: " << eq << endl;
slv.assertFormula(eq);
Term eq2 = slv.mkTerm(EQUAL, x_31_31, x_0_0);
cout << " Check entailment assuming: " << eq2 << endl;
cout << " Expect ENTAILED. " << endl;
cout << " CVC4: " << slv.checkEntailed(eq2) << endl;
return 0;
}
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