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/****************************************************************************** |
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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) 2009-2021 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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* Utility for inferring templates for invariant problems. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__QUANTIFIERS__SYGUS__TEMPLATE_INFER_H |
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#define CVC5__THEORY__QUANTIFIERS__SYGUS__TEMPLATE_INFER_H |
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#include <map> |
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#include "expr/node.h" |
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#include "theory/quantifiers/sygus/transition_inference.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace quantifiers { |
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/** |
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* This class infers templates for an invariant-to-synthesize based on the |
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* template mode. It uses the transition inference to choose a template. |
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*/ |
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class SygusTemplateInfer |
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{ |
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public: |
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SygusTemplateInfer() {} |
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~SygusTemplateInfer() {} |
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/** |
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* Initialize this class for synthesis conjecture q. If applicable, the |
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* templates for functions-to-synthesize for q are accessible by the |
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* calls below afterwards. |
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*/ |
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void initialize(Node q); |
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/** |
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* Get template for program prog. This returns a term of the form t[x] where |
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* x is the template argument (see below) |
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*/ |
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Node getTemplate(Node prog) const; |
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/** |
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* Get the template argument for program prog. This is a variable which |
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* indicates the position of the function/predicate to synthesize. |
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*/ |
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Node getTemplateArg(Node prog) const; |
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private: |
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/** The quantified formula we initialized with */ |
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Node d_quant; |
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/** transition relation pre and post version per function to synthesize */ |
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std::map<Node, Node> d_trans_pre; |
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std::map<Node, Node> d_trans_post; |
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/** the template for each function to synthesize */ |
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std::map<Node, Node> d_templ; |
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/** |
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* The template argument for each function to synthesize (occurs in exactly |
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* one position of its template) |
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*/ |
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std::map<Node, Node> d_templ_arg; |
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/** transition inference module */ |
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TransitionInference d_ti; |
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}; |
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} // namespace quantifiers |
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} // namespace theory |
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} // namespace cvc5 |
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#endif |