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be76d1140e
The rewrites had led to complications with the cardinality solver and moreover weren't sound if the universe set was e.g. intersected with a term that was not a subset of elements from set variables. This furthermore corrects an issue cvc5/cvc5-projects#644, which was triggered by the unsoundness in these rewrites. Fixes cvc5/cvc5-projects#644.
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
/******************************************************************************
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* Top contributors (to current version):
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* Andrew Reynolds
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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) 2009-2023 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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* Test for project issue #644
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*
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*/
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#include <cvc5/cvc5.h>
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using namespace cvc5;
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int main(void)
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{
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Solver solver;
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solver.setOption("incremental", "false");
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solver.setOption("sets-ext", "true");
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solver.setOption("check-interpolants", "true");
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solver.setOption("produce-interpolants", "true");
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Sort s0 = solver.getRoundingModeSort();
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Term t1 = solver.mkConst(s0, "_x0");
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Term t2 = solver.mkTerm(Kind::SET_SINGLETON, {t1});
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Sort s3 = t2.getSort();
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Op o4 = solver.mkOp(Kind::SET_COMPLEMENT);
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Term t5 = solver.mkTerm(o4, {t2});
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Term t6 = solver.mkTerm(Kind::SET_COMPLEMENT, {t5});
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Op o7 = solver.mkOp(Kind::SET_SUBSET);
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Term t8 = solver.mkTerm(o7, {t6, t5});
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Sort s9 = t8.getSort();
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solver.assertFormula(t8);
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Term t10 = solver.getInterpolant(t8);
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return 0;
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}
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