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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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* Management of a distributed approach for equality sharing. |
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*/ |
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#include "theory/ee_manager_distributed.h" |
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#include "theory/quantifiers_engine.h" |
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#include "theory/shared_solver.h" |
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#include "theory/theory_engine.h" |
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#include "theory/uf/equality_engine.h" |
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namespace cvc5 { |
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namespace theory { |
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EqEngineManagerDistributed::EqEngineManagerDistributed(TheoryEngine& te, |
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SharedSolver& shs) |
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: EqEngineManager(te, shs), d_masterEENotify(nullptr) |
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{ |
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} |
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EqEngineManagerDistributed::~EqEngineManagerDistributed() |
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{ |
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} |
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void EqEngineManagerDistributed::initializeTheories() |
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{ |
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context::Context* c = d_te.getSatContext(); |
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// initialize the shared solver |
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EeSetupInfo esis; |
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if (d_sharedSolver.needsEqualityEngine(esis)) |
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{ |
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// allocate an equality engine for the shared terms database |
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d_stbEqualityEngine.reset(allocateEqualityEngine(esis, c)); |
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d_sharedSolver.setEqualityEngine(d_stbEqualityEngine.get()); |
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} |
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else |
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{ |
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Unhandled() << "Expected shared solver to use equality engine"; |
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} |
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const LogicInfo& logicInfo = d_te.getLogicInfo(); |
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if (logicInfo.isQuantified()) |
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{ |
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// construct the master equality engine |
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Assert(d_masterEqualityEngine == nullptr); |
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QuantifiersEngine* qe = d_te.getQuantifiersEngine(); |
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Assert(qe != nullptr); |
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d_masterEENotify.reset(new MasterNotifyClass(qe)); |
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d_masterEqualityEngine.reset(new eq::EqualityEngine(*d_masterEENotify.get(), |
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d_te.getSatContext(), |
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"theory::master", |
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false)); |
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} |
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// allocate equality engines per theory |
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for (TheoryId theoryId = theory::THEORY_FIRST; |
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theoryId != theory::THEORY_LAST; |
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++theoryId) |
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{ |
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Theory* t = d_te.theoryOf(theoryId); |
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if (t == nullptr) |
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{ |
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// theory not active, skip |
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continue; |
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} |
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// always allocate an object in d_einfo here |
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EeTheoryInfo& eet = d_einfo[theoryId]; |
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EeSetupInfo esi; |
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if (!t->needsEqualityEngine(esi)) |
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{ |
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// the theory said it doesn't need an equality engine, skip |
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continue; |
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} |
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if (esi.d_useMaster) |
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{ |
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// the theory said it wants to use the master equality engine |
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eet.d_usedEe = d_masterEqualityEngine.get(); |
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continue; |
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} |
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// allocate the equality engine |
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eet.d_allocEe.reset(allocateEqualityEngine(esi, c)); |
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// the theory uses the equality engine |
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eet.d_usedEe = eet.d_allocEe.get(); |
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// if there is a master equality engine |
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if (d_masterEqualityEngine != nullptr) |
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{ |
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// set the master equality engine of the theory's equality engine |
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eet.d_allocEe->setMasterEqualityEngine(d_masterEqualityEngine.get()); |
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} |
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} |
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} |
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void EqEngineManagerDistributed::notifyModel(bool incomplete) |
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{ |
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// should have a consistent master equality engine |
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if (d_masterEqualityEngine.get() != nullptr) |
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{ |
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AlwaysAssert(d_masterEqualityEngine->consistent()); |
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} |
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} |
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void EqEngineManagerDistributed::MasterNotifyClass::eqNotifyNewClass(TNode t) |
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{ |
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// adds t to the quantifiers term database |
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d_quantEngine->eqNotifyNewClass(t); |
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} |
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} // namespace theory |
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} // namespace cvc5 |