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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, Morgan Deters, Mathias Preiner |
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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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* Representation of unsat cores. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__UNSAT_CORE_H |
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#define CVC5__UNSAT_CORE_H |
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#include <iosfwd> |
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#include <vector> |
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#include "expr/node.h" |
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namespace cvc5 { |
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/** |
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* An unsat core, which can optionally be initialized as a list of names |
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* or as a list of formulas. |
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*/ |
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class UnsatCore |
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{ |
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public: |
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UnsatCore() {} |
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/** Initialize using assertions */ |
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UnsatCore(const std::vector<Node>& core); |
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/** Initialize using assertion names */ |
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UnsatCore(std::vector<std::string>& names); |
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~UnsatCore() {} |
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/** Whether we are using names for this unsat core */ |
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bool useNames() const { return d_useNames; } |
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/** Get the assertions in the unsat core */ |
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const std::vector<Node>& getCore() const; |
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/** Get their names */ |
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const std::vector<std::string>& getCoreNames() const; |
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typedef std::vector<Node>::const_iterator iterator; |
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typedef std::vector<Node>::const_iterator const_iterator; |
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const_iterator begin() const; |
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const_iterator end() const; |
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/** |
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* prints this UnsatCore object to the stream out. |
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*/ |
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void toStream(std::ostream& out) const; |
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private: |
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/** Whether we are using names for this unsat core */ |
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bool d_useNames; |
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/** The unsat core */ |
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std::vector<Node> d_core; |
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/** The names of assertions in the above core */ |
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std::vector<std::string> d_names; |
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};/* class UnsatCore */ |
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/** Print the unsat core to stream out */ |
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std::ostream& operator<<(std::ostream& out, const UnsatCore& core); |
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} // namespace cvc5 |
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#endif /* CVC5__UNSAT_CORE_H */ |