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/****************************************************************************** |
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* Top contributors (to current version): |
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* Aina Niemetz, Yoni Zohar |
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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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* Unit tests for Foreign Theory Rerwrite prepricessing pass. |
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*/ |
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#include "expr/node_manager.h" |
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#include "preprocessing/passes/foreign_theory_rewrite.h" |
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#include "smt/smt_engine.h" |
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#include "test_smt.h" |
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namespace cvc5 { |
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using namespace preprocessing::passes; |
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namespace test { |
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class TestPPWhiteForeignTheoryRewrite : public TestSmt |
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{ |
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}; |
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TEST_F(TestPPWhiteForeignTheoryRewrite, simplify) |
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{ |
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std::cout << "len(x) >= 0 is simplified to true" << std::endl; |
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Node x = d_nodeManager->mkVar("x", d_nodeManager->stringType()); |
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Node len_x = d_nodeManager->mkNode(kind::STRING_LENGTH, x); |
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Node zero = d_nodeManager->mkConst<Rational>(0); |
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Node geq1 = d_nodeManager->mkNode(kind::GEQ, len_x, zero); |
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Node tt = d_nodeManager->mkConst<bool>(true); |
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Node simplified1 = ForeignTheoryRewrite::foreignRewrite(geq1); |
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ASSERT_EQ(simplified1, tt); |
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std::cout << "len(x) >= n is not simplified to true" << std::endl; |
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Node n = d_nodeManager->mkVar("n", d_nodeManager->integerType()); |
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Node geq2 = d_nodeManager->mkNode(kind::GEQ, len_x, n); |
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Node simplified2 = ForeignTheoryRewrite::foreignRewrite(geq2); |
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ASSERT_NE(simplified2, tt); |
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} |
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} // namespace test |
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} // namespace cvc5 |