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       1                 :            : /******************************************************************************
       2                 :            :  * This file is part of the cvc5 project.
       3                 :            :  *
       4                 :            :  * Copyright (c) 2009-2026 by the authors listed in the file AUTHORS
       5                 :            :  * in the top-level source directory and their institutional affiliations.
       6                 :            :  * All rights reserved.  See the file COPYING in the top-level source
       7                 :            :  * directory for licensing information.
       8                 :            :  * ****************************************************************************
       9                 :            :  *
      10                 :            :  * Management of a distributed approach for model generation.
      11                 :            :  */
      12                 :            : 
      13                 :            : #include "theory/model_manager_distributed.h"
      14                 :            : 
      15                 :            : #include "smt/env.h"
      16                 :            : #include "theory/theory_engine.h"
      17                 :            : #include "theory/theory_model.h"
      18                 :            : #include "theory/theory_model_builder.h"
      19                 :            : 
      20                 :            : namespace cvc5::internal {
      21                 :            : namespace theory {
      22                 :            : 
      23                 :      51327 : ModelManagerDistributed::ModelManagerDistributed(Env& env,
      24                 :            :                                                  TheoryEngine& te,
      25                 :      51327 :                                                  EqEngineManager& eem)
      26                 :      51327 :     : ModelManager(env, te, eem)
      27                 :            : {
      28                 :      51327 : }
      29                 :            : 
      30                 :     101958 : ModelManagerDistributed::~ModelManagerDistributed()
      31                 :            : {
      32                 :            :   // pop the model context which we pushed on initialization
      33                 :      50979 :   d_modelEeContext.pop();
      34                 :     101958 : }
      35                 :            : 
      36                 :      51327 : void ModelManagerDistributed::initializeModelEqEngine(
      37                 :            :     eq::EqualityEngineNotify* notify)
      38                 :            : {
      39                 :            :   // initialize the model equality engine, use the provided notification object,
      40                 :            :   // which belongs e.g. to CombinationModelBased
      41                 :      51327 :   EeSetupInfo esim;
      42                 :      51327 :   esim.d_notify = notify;
      43                 :      51327 :   esim.d_name = d_model->getName() + "::ee";
      44                 :      51327 :   esim.d_constantsAreTriggers = false;
      45                 :      51327 :   d_modelEqualityEngineAlloc.reset(
      46                 :      51327 :       d_eem.allocateEqualityEngine(esim, &d_modelEeContext));
      47                 :      51327 :   d_modelEqualityEngine = d_modelEqualityEngineAlloc.get();
      48                 :            :   // finish initializing the model
      49                 :      51327 :   d_model->finishInit(d_modelEqualityEngine);
      50                 :            :   // We push a context during initialization since the model is cleared during
      51                 :            :   // collectModelInfo using pop/push.
      52                 :      51327 :   d_modelEeContext.push();
      53                 :      51327 : }
      54                 :            : 
      55                 :      36115 : bool ModelManagerDistributed::prepareModel()
      56                 :            : {
      57         [ +  - ]:      72230 :   Trace("model-builder") << "ModelManagerDistributed: reset model..."
      58                 :      36115 :                          << std::endl;
      59                 :            : 
      60                 :            :   // push/pop to clear the equality engine of the model
      61                 :      36115 :   d_modelEeContext.pop();
      62                 :      36115 :   d_modelEeContext.push();
      63                 :            : 
      64                 :            :   // Collect model info from the theories
      65         [ +  - ]:      72230 :   Trace("model-builder") << "ModelManagerDistributed: Collect model info..."
      66                 :      36115 :                          << std::endl;
      67                 :            :   // Consult each active theory to get all relevant information concerning the
      68                 :            :   // model, which includes both dump their equality information and assigning
      69                 :            :   // values. Notice the order of theories here is important and is the same
      70                 :            :   // as the list in CVC5_FOR_EACH_THEORY in theory_engine.cpp.
      71                 :      36115 :   const LogicInfo& logicInfo = d_env.getLogicInfo();
      72         [ +  + ]:     538862 :   for (TheoryId theoryId = theory::THEORY_FIRST; theoryId < theory::THEORY_LAST;
      73                 :     502747 :        ++theoryId)
      74                 :            :   {
      75         [ +  + ]:     503012 :     if (!logicInfo.isTheoryEnabled(theoryId))
      76                 :            :     {
      77                 :            :       // theory not active, skip
      78                 :     245519 :       continue;
      79                 :            :     }
      80                 :     329723 :     Theory* t = d_te.theoryOf(theoryId);
      81         [ +  + ]:     329723 :     if (theoryId == TheoryId::THEORY_BOOL
      82         [ +  + ]:     293608 :         || theoryId == TheoryId::THEORY_BUILTIN)
      83                 :            :     {
      84         [ +  - ]:     144460 :       Trace("model-builder")
      85                 :          0 :           << "  Skipping theory " << theoryId
      86                 :      72230 :           << " as it does not contribute to the model anyway" << std::endl;
      87                 :      72230 :       continue;
      88                 :            :     }
      89         [ +  - ]:     514986 :     Trace("model-builder") << "  CollectModelInfo on theory: " << theoryId
      90                 :     257493 :                            << std::endl;
      91                 :            :     // collect the asserted terms
      92                 :     257493 :     std::set<Node> termSet;
      93                 :     257493 :     t->collectAssertedTermsForModel(termSet);
      94                 :            :     // also get relevant terms
      95                 :     257493 :     t->computeRelevantTerms(termSet);
      96         [ +  + ]:     257493 :     if (!t->collectModelInfo(d_model.get(), termSet))
      97                 :            :     {
      98         [ +  - ]:        530 :       Trace("model-builder")
      99                 :        265 :           << "ModelManagerDistributed: fail collect model info" << std::endl;
     100                 :        265 :       return false;
     101                 :            :     }
     102         [ +  + ]:     257493 :   }
     103                 :            : 
     104         [ -  + ]:      35850 :   if (!collectModelBooleanVariables())
     105                 :            :   {
     106         [ -  - ]:          0 :     Trace("model-builder") << "ModelManagerDistributed: fail Boolean variables"
     107                 :          0 :                            << std::endl;
     108                 :          0 :     return false;
     109                 :            :   }
     110                 :            : 
     111                 :      35850 :   return true;
     112                 :            : }
     113                 :            : 
     114                 :      35850 : bool ModelManagerDistributed::finishBuildModel() const
     115                 :            : {
     116                 :            :   // do not use relevant terms
     117         [ -  + ]:      35850 :   if (!d_modelBuilder->buildModel(d_model.get()))
     118                 :            :   {
     119         [ -  - ]:          0 :     Trace("model-builder") << "ModelManager: fail build model" << std::endl;
     120                 :          0 :     return false;
     121                 :            :   }
     122                 :      35850 :   return true;
     123                 :            : }
     124                 :            : 
     125                 :            : }  // namespace theory
     126                 :            : }  // namespace cvc5::internal