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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 model generation. |
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*/ |
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#include "theory/model_manager_distributed.h" |
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#include "smt/env.h" |
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#include "theory/theory_engine.h" |
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#include "theory/theory_model.h" |
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#include "theory/theory_model_builder.h" |
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namespace cvc5 { |
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namespace theory { |
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ModelManagerDistributed::ModelManagerDistributed(Env& env, |
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TheoryEngine& te, |
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EqEngineManager& eem) |
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: ModelManager(env, te, eem) |
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{ |
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} |
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ModelManagerDistributed::~ModelManagerDistributed() |
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{ |
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// pop the model context which we pushed on initialization |
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d_modelEeContext.pop(); |
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} |
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void ModelManagerDistributed::initializeModelEqEngine( |
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eq::EqualityEngineNotify* notify) |
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{ |
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// initialize the model equality engine, use the provided notification object, |
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// which belongs e.g. to CombinationModelBased |
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EeSetupInfo esim; |
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esim.d_notify = notify; |
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esim.d_name = d_model->getName() + "::ee"; |
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esim.d_constantsAreTriggers = false; |
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d_modelEqualityEngineAlloc.reset( |
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d_eem.allocateEqualityEngine(esim, &d_modelEeContext)); |
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d_modelEqualityEngine = d_modelEqualityEngineAlloc.get(); |
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// finish initializing the model |
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d_model->finishInit(d_modelEqualityEngine); |
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// We push a context during initialization since the model is cleared during |
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// collectModelInfo using pop/push. |
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d_modelEeContext.push(); |
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} |
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bool ModelManagerDistributed::prepareModel() |
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{ |
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Trace("model-builder") << "ModelManagerDistributed: reset model..." |
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<< std::endl; |
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// push/pop to clear the equality engine of the model |
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d_modelEeContext.pop(); |
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d_modelEeContext.push(); |
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// Collect model info from the theories |
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Trace("model-builder") << "ModelManagerDistributed: Collect model info..." |
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<< std::endl; |
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// Consult each active theory to get all relevant information concerning the |
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// model, which includes both dump their equality information and assigning |
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// values. Notice the order of theories here is important and is the same |
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// as the list in CVC5_FOR_EACH_THEORY in theory_engine.cpp. |
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const LogicInfo& logicInfo = d_env.getLogicInfo(); |
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for (TheoryId theoryId = theory::THEORY_FIRST; theoryId < theory::THEORY_LAST; |
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++theoryId) |
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{ |
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if (!logicInfo.isTheoryEnabled(theoryId)) |
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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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Theory* t = d_te.theoryOf(theoryId); |
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if (theoryId == TheoryId::THEORY_BOOL |
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|| theoryId == TheoryId::THEORY_BUILTIN) |
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{ |
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Trace("model-builder") |
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<< " Skipping theory " << theoryId |
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<< " as it does not contribute to the model anyway" << std::endl; |
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continue; |
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} |
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Trace("model-builder") << " CollectModelInfo on theory: " << theoryId |
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<< std::endl; |
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// collect the asserted terms |
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std::set<Node> termSet; |
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t->collectAssertedTerms(termSet); |
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// also get relevant terms |
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t->computeRelevantTerms(termSet); |
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if (!t->collectModelInfo(d_model.get(), termSet)) |
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{ |
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Trace("model-builder") |
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<< "ModelManagerDistributed: fail collect model info" << std::endl; |
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return false; |
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} |
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} |
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if (!collectModelBooleanVariables()) |
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{ |
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Trace("model-builder") << "ModelManagerDistributed: fail Boolean variables" |
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<< std::endl; |
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return false; |
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} |
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return true; |
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} |
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bool ModelManagerDistributed::finishBuildModel() const |
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{ |
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// do not use relevant terms |
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if (!d_modelBuilder->buildModel(d_model.get())) |
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{ |
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Trace("model-builder") << "ModelManager: fail build model" << std::endl; |
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return false; |
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} |
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return true; |
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} |
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} // namespace theory |
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} // namespace cvc5 |