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7ff15aa749
This refactors the Solver class in the java API to extend AbstractPointer similar to other cvc5 classes. It also cleans up redundant code for Abstract pointers. and adds Context.deletePointers to java examples as mentioned in issue #10052.
72 lines
2.1 KiB
Java
72 lines
2.1 KiB
Java
/******************************************************************************
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* Top contributors (to current version):
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* Alex Ozdemir, Mudathir Mohamed, Liana Hadarean, Morgan Deters
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*
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* This file is part of the cvc5 project.
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*
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* Copyright (c) 2009-2022 by the authors listed in the file AUTHORS
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* in the top-level source directory and their institutional affiliations.
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* All rights reserved. See the file COPYING in the top-level source
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* directory for licensing information.
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* ****************************************************************************
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*
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* An example of solving finite field problems with cvc5's Java API
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*
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*/
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import io.github.cvc5.*;
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import java.util.*;
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public class FiniteField
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{
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public static void main(String args[]) throws CVC5ApiException
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{
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Solver slv = new Solver();
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{
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slv.setLogic("QF_FF"); // Set the logic
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Sort f5 = slv.mkFiniteFieldSort("5");
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Term a = slv.mkConst(f5, "a");
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Term b = slv.mkConst(f5, "b");
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Term z = slv.mkFiniteFieldElem("0", f5);
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System.out.println("is ff: " + f5.isFiniteField());
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System.out.println("ff size: " + f5.getFiniteFieldSize());
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System.out.println("is ff value: " + z.isFiniteFieldValue());
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System.out.println("ff value: " + z.getFiniteFieldValue());
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Term inv =
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slv.mkTerm(Kind.EQUAL,
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slv.mkTerm(Kind.FINITE_FIELD_ADD,
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slv.mkTerm(Kind.FINITE_FIELD_MULT, a, b),
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slv.mkFiniteFieldElem("-1", f5)),
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z);
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Term aIsTwo =
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slv.mkTerm(Kind.EQUAL,
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slv.mkTerm(Kind.FINITE_FIELD_ADD,
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a,
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slv.mkFiniteFieldElem("-2", f5)),
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z);
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slv.assertFormula(inv);
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slv.assertFormula(aIsTwo);
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Result r = slv.checkSat();
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System.out.println("is sat: " + r.isSat());
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Term bIsTwo =
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slv.mkTerm(Kind.EQUAL,
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slv.mkTerm(Kind.FINITE_FIELD_ADD,
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b,
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slv.mkFiniteFieldElem("-2", f5)),
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z);
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slv.assertFormula(bIsTwo);
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r = slv.checkSat();
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System.out.println("is sat: " + r.isSat());
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}
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Context.deletePointers();
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}
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}
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