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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
3.1 KiB
Java
94 lines
3.1 KiB
Java
/******************************************************************************
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* Top contributors (to current version):
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* Aina Niemetz, Kshitij Bansal, 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 sets with cvc5.
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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 Sets
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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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// Optionally, set the logic. We need at least UF for equality predicate,
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// integers (LIA) and sets (FS).
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slv.setLogic("QF_UFLIAFS");
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// Produce models
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slv.setOption("produce-models", "true");
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slv.setOption("output-language", "smt2");
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Sort integer = slv.getIntegerSort();
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Sort set = slv.mkSetSort(integer);
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// Verify union distributions over intersection
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// (A union B) intersection C = (A intersection C) union (B intersection C)
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{
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Term A = slv.mkConst(set, "A");
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Term B = slv.mkConst(set, "B");
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Term C = slv.mkConst(set, "C");
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Term unionAB = slv.mkTerm(UNION, A, B);
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Term lhs = slv.mkTerm(INTERSECTION, unionAB, C);
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Term intersectionAC = slv.mkTerm(INTERSECTION, A, C);
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Term intersectionBC = slv.mkTerm(INTERSECTION, B, C);
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Term rhs = slv.mkTerm(UNION, intersectionAC, intersectionBC);
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Term theorem = slv.mkTerm(EQUAL, lhs, rhs);
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System.out.println("cvc5 reports: " + theorem + " is " + slv.checkEntailed(theorem) + ".");
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}
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// Verify emptset is a subset of any set
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{
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Term A = slv.mkConst(set, "A");
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Term emptyset = slv.mkEmptySet(set);
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Term theorem = slv.mkTerm(SUBSET, emptyset, A);
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System.out.println("cvc5 reports: " + theorem + " is " + slv.checkEntailed(theorem) + ".");
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}
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// Find me an element in {1, 2} intersection {2, 3}, if there is one.
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{
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Term one = slv.mkInteger(1);
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Term two = slv.mkInteger(2);
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Term three = slv.mkInteger(3);
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Term singleton_one = slv.mkTerm(SINGLETON, one);
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Term singleton_two = slv.mkTerm(SINGLETON, two);
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Term singleton_three = slv.mkTerm(SINGLETON, three);
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Term one_two = slv.mkTerm(UNION, singleton_one, singleton_two);
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Term two_three = slv.mkTerm(UNION, singleton_two, singleton_three);
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Term intersection = slv.mkTerm(INTERSECTION, one_two, two_three);
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Term x = slv.mkConst(integer, "x");
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Term e = slv.mkTerm(MEMBER, x, intersection);
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Result result = slv.checkSatAssuming(e);
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System.out.println("cvc5 reports: " + e + " is " + result + ".");
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if (result.isSat())
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{
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System.out.println("For instance, " + slv.getValue(x) + " is a member.");
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}
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}
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}
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}
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}
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