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https://github.com/AdaCore/cvc5.git
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690a392656
This PR enables CI for java tests by adding --java-bindings to ci.yml. It also replaces the unreliable finalize method and instead uses AutoCloseable and explicit close method to clean up dynamic memory allocated by java native interface. The PR fixes compile errors for SolverTest.java and runtime errors for Solver.defineFun.
94 lines
3.0 KiB
Java
94 lines
3.0 KiB
Java
/******************************************************************************
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* Top contributors (to current version):
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* Aina Niemetz, Tianyi Liang, Mudathir Mohamed
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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) 2009-2021 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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* A simple demonstration of reasoning about strings with cvc5 via C++ API.
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*/
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import static io.github.cvc5.api.Kind.*;
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import io.github.cvc5.api.*;
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public class Strings
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{
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public static void main(String args[]) throws CVC5ApiException
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{
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try (Solver slv = new Solver())
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{
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// Set the logic
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slv.setLogic("QF_SLIA");
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// Produce models
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slv.setOption("produce-models", "true");
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// The option strings-exp is needed
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slv.setOption("strings-exp", "true");
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// Set output language to SMTLIB2
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slv.setOption("output-language", "smt2");
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// String type
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Sort string = slv.getStringSort();
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// std::string
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String str_ab = "ab";
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// String constants
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Term ab = slv.mkString(str_ab);
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Term abc = slv.mkString("abc");
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// String variables
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Term x = slv.mkConst(string, "x");
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Term y = slv.mkConst(string, "y");
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Term z = slv.mkConst(string, "z");
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// String concatenation: x.ab.y
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Term lhs = slv.mkTerm(STRING_CONCAT, x, ab, y);
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// String concatenation: abc.z
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Term rhs = slv.mkTerm(STRING_CONCAT, abc, z);
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// x.ab.y = abc.z
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Term formula1 = slv.mkTerm(EQUAL, lhs, rhs);
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// Length of y: |y|
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Term leny = slv.mkTerm(STRING_LENGTH, y);
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// |y| >= 0
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Term formula2 = slv.mkTerm(GEQ, leny, slv.mkInteger(0));
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// Regular expression: (ab[c-e]*f)|g|h
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Term r = slv.mkTerm(REGEXP_UNION,
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slv.mkTerm(REGEXP_CONCAT,
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slv.mkTerm(STRING_TO_REGEXP, slv.mkString("ab")),
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slv.mkTerm(
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REGEXP_STAR, slv.mkTerm(REGEXP_RANGE, slv.mkString("c"), slv.mkString("e"))),
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slv.mkTerm(STRING_TO_REGEXP, slv.mkString("f"))),
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slv.mkTerm(STRING_TO_REGEXP, slv.mkString("g")),
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slv.mkTerm(STRING_TO_REGEXP, slv.mkString("h")));
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// String variables
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Term s1 = slv.mkConst(string, "s1");
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Term s2 = slv.mkConst(string, "s2");
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// String concatenation: s1.s2
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Term s = slv.mkTerm(STRING_CONCAT, s1, s2);
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// s1.s2 in (ab[c-e]*f)|g|h
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Term formula3 = slv.mkTerm(STRING_IN_REGEXP, s, r);
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// Make a query
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Term q = slv.mkTerm(AND, formula1, formula2, formula3);
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// check sat
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Result result = slv.checkSatAssuming(q);
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System.out.println("cvc5 reports: " + q + " is " + result + ".");
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if (result.isSat())
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{
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System.out.println(" x = " + slv.getValue(x));
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System.out.println(" s1.s2 = " + slv.getValue(s));
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}
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}
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}
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}
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