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/******************************************************************************
* Top contributors (to current version):
* Andrew Reynolds, Andres Noetzli, Morgan Deters
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
* in the top-level source directory and their institutional affiliations.
* All rights reserved. See the file COPYING in the top-level source
* directory for licensing information.
* ****************************************************************************
*
* Smt Environment, main access to global utilities available to
* internal code
*/
#include "cvc5_public.h"
#ifndef CVC5__SMT__ENV_H
#define CVC5__SMT__ENV_H
#include <memory>
#include "options/options.h"
#include "theory/logic_info.h"
#include "util/statistics_registry.h"
namespace cvc5 {
class NodeManager;
class StatisticsRegistry;
class ProofNodeManager;
class Printer;
class ResourceManager;
namespace context {
class Context;
class UserContext;
} // namespace context
namespace smt {
class DumpManager;
}
namespace theory {
class Rewriter;
class TrustSubstitutionMap;
}
/**
* The environment class.
*
* This class lives in the SmtEngine and contains all utilities that are
* globally available to all internal code.
*/
class Env
{
friend class SmtEngine;
public:
/**
* Construct an Env with the given node manager.
*/
Env(NodeManager* nm, Options* opts);
/** Destruct the env. */
~Env();
/* Access to members------------------------------------------------------- */
/** Get a pointer to the Context owned by this Env. */
context::Context* getContext();
/** Get a pointer to the UserContext owned by this Env. */
context::UserContext* getUserContext();
/** Get a pointer to the underlying NodeManager. */
NodeManager* getNodeManager() const;
/**
* Get the underlying proof node manager. Note since proofs depend on option
* initialization, this is only available after the SmtEngine that owns this
* environment is initialized, and only non-null if proofs are enabled.
*/
ProofNodeManager* getProofNodeManager();
/** Get a pointer to the Rewriter owned by this Env. */
theory::Rewriter* getRewriter();
/** Get a reference to the top-level substitution map */
theory::TrustSubstitutionMap& getTopLevelSubstitutions();
/** Get a pointer to the underlying dump manager. */
smt::DumpManager* getDumpManager();
/** Get the options object (const version only) owned by this Env. */
const Options& getOptions() const;
/** Get the original options object (const version only). */
const Options& getOriginalOptions() const;
/** Get the resource manager owned by this Env. */
ResourceManager* getResourceManager() const;
/** Get the logic information currently set. */
const LogicInfo& getLogicInfo() const;
/** Get a pointer to the StatisticsRegistry. */
StatisticsRegistry& getStatisticsRegistry();
/* Option helpers---------------------------------------------------------- */
/**
* Get the current printer based on the current options
* @return the current printer
*/
const Printer& getPrinter();
/**
* Get the output stream that --dump=X should print to
* @return the output stream
*/
std::ostream& getDumpOut();
private:
/* Private initialization ------------------------------------------------- */
/** Set proof node manager if it exists */
void setProofNodeManager(ProofNodeManager* pnm);
/* Private shutdown ------------------------------------------------------- */
/**
* Shutdown method, which destroys the non-essential members of this class
* in preparation for destroying SMT engine.
*/
void shutdown();
/* Members ---------------------------------------------------------------- */
/** The SAT context owned by this Env */
std::unique_ptr<context::Context> d_context;
/** User level context owned by this Env */
std::unique_ptr<context::UserContext> d_userContext;
/**
* A pointer to the node manager of this environment. A node manager is
* not necessarily unique to an SmtEngine instance.
*/
NodeManager* d_nodeManager;
/**
* A pointer to the proof node manager, which is non-null if proofs are
* enabled. This is owned by the proof manager of the SmtEngine that owns
* this environment.
*/
ProofNodeManager* d_proofNodeManager;
/**
* The rewriter owned by this Env. We have a different instance
* of the rewriter for each Env instance. This is because rewriters may
* hold references to objects that belong to theory solvers, which are
* specific to an SmtEngine/TheoryEngine instance.
*/
std::unique_ptr<theory::Rewriter> d_rewriter;
/** The top level substitutions */
std::unique_ptr<theory::TrustSubstitutionMap> d_topLevelSubs;
/** The dump manager */
std::unique_ptr<smt::DumpManager> d_dumpManager;
/**
* The logic we're in. This logic may be an extension of the logic set by the
* user, which may be different from the user-provided logic due to the
* options we have set.
*
* This is the authorative copy of the logic that internal subsolvers should
* consider during solving and initialization.
*/
LogicInfo d_logic;
/**
* The statistics registry owned by this Env.
*/
std::unique_ptr<StatisticsRegistry> d_statisticsRegistry;
/**
* The options object, which contains the modified version of the options
* provided as input to the SmtEngine that owns this environment. Note
* that d_options may be modified by the options manager, e.g. based
* on the input logic.
*
* This is the authorative copy of the options that internal subsolvers should
* consider during solving and initialization.
*/
Options d_options;
/**
* A pointer to the original options object as stored in the api::Solver.
* The referenced objects holds the options as initially parsed before being
* changed, e.g., by setDefaults().
*/
const Options* d_originalOptions;
/** Manager for limiting time and abstract resource usage. */
std::unique_ptr<ResourceManager> d_resourceManager;
}; /* class Env */
} // namespace cvc5
#endif /* CVC5__SMT__ENV_H */
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