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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds, 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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* Expression miner manager, which manages individual expression miners. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__QUANTIFIERS__EXPR_MINER_MANAGER_H |
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#define CVC5__THEORY__QUANTIFIERS__EXPR_MINER_MANAGER_H |
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#include "expr/node.h" |
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#include "smt/env_obj.h" |
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#include "theory/quantifiers/candidate_rewrite_database.h" |
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#include "theory/quantifiers/query_generator.h" |
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#include "theory/quantifiers/query_generator_unsat.h" |
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#include "theory/quantifiers/solution_filter.h" |
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#include "theory/quantifiers/sygus_sampler.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace quantifiers { |
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/** ExpressionMinerManager |
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* |
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* This class manages a set of expression miners. It provides a common place |
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* to register expressions so that multiple mining algorithms can be run in |
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* coordination, possibly sharing information and utilities like a common |
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* sampling object. |
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*/ |
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class ExpressionMinerManager : protected EnvObj |
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{ |
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public: |
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ExpressionMinerManager(Env& env); |
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~ExpressionMinerManager() {} |
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/** Initialize this class |
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* |
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* Initializes this class, informing it that the free variables of terms |
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* added to this class via addTerm will have free variables that are a subset |
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* of vars, and have type tn. All expression miners in this class with be |
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* initialized with this variable list. The arguments nsamples and |
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* unique_type_ids are used for initializing the sampler class of this manager |
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* (see SygusSampler::initialize for details). |
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*/ |
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void initialize(const std::vector<Node>& vars, |
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TypeNode tn, |
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unsigned nsamples, |
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bool unique_type_ids = false); |
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/** Initialize this class, sygus version |
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* |
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* Initializes this class, informing it that the terms added to this class |
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* via calls to addTerm will be generated by the grammar of f. The method |
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* takes a pointer to the quantifiers engine qe. If the argument useSygusType |
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* is true, the terms added to this class are the sygus datatype terms. |
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* If useSygusType is false, the terms are the builtin equivalent of these |
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* terms. The argument nsamples is used to initialize the sampler. |
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*/ |
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void initializeSygus(TermDbSygus* tds, |
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Node f, |
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unsigned nsamples, |
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bool useSygusType); |
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/** initialize options */ |
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void initializeMinersForOptions(); |
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/** add term |
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* |
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* Expression miners may print information on the output stream out, for |
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* instance, candidate-rewrites. The method returns true if the term sol is |
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* distinct (up to T-equivalence) with all previous terms added to this class, |
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* which is computed based on the miners that this manager enables. |
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*/ |
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bool addTerm(Node sol, std::ostream& out); |
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/** |
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* Same as above, but the argument rew_print is set to true if a rewrite rule |
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* was printed on the output stream out. |
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*/ |
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bool addTerm(Node sol, std::ostream& out, bool& rew_print); |
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private: |
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/** enable rewrite rule synthesis (--sygus-rr-synth) */ |
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void enableRewriteRuleSynth(); |
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/** enable query generation (--sygus-query-gen) */ |
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void enableQueryGeneration(unsigned deqThresh); |
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/** filter strong solutions (--sygus-filter-sol=strong) */ |
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void enableFilterStrongSolutions(); |
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/** filter weak solutions (--sygus-filter-sol=weak) */ |
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void enableFilterWeakSolutions(); |
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/** whether we are doing rewrite synthesis */ |
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bool d_doRewSynth; |
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/** whether we are doing query generation */ |
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bool d_doQueryGen; |
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/** whether we are filtering solutions based on logical strength */ |
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bool d_doFilterLogicalStrength; |
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/** the sygus function passed to initializeSygus, if any */ |
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Node d_sygus_fun; |
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/** whether we are using sygus types */ |
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bool d_use_sygus_type; |
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/** the sygus term database of the quantifiers engine */ |
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TermDbSygus* d_tds; |
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/** candidate rewrite database */ |
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CandidateRewriteDatabase d_crd; |
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/** query generator */ |
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std::unique_ptr<QueryGenerator> d_qg; |
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/** query generator */ |
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std::unique_ptr<QueryGeneratorUnsat> d_qgu; |
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/** solution filter based on logical strength */ |
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SolutionFilterStrength d_sols; |
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/** sygus sampler object */ |
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SygusSampler d_sampler; |
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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 /* CVC5__THEORY__QUANTIFIERS__EXPR_MINER_MANAGER_H */ |