blob: 91e4cb6d4a7de7ddbdbdf972e3629078ba7204f1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/******************************************************************************
* Top contributors (to current version):
* Andrew Reynolds
*
* 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.
* ****************************************************************************
*
* Management of a distributed approach for model generation.
*/
#include "theory/model_manager_distributed.h"
#include "smt/env.h"
#include "theory/theory_engine.h"
#include "theory/theory_model.h"
#include "theory/theory_model_builder.h"
namespace cvc5 {
namespace theory {
ModelManagerDistributed::ModelManagerDistributed(TheoryEngine& te,
Env& env,
EqEngineManager& eem)
: ModelManager(te, env, eem)
{
}
ModelManagerDistributed::~ModelManagerDistributed()
{
// pop the model context which we pushed on initialization
d_modelEeContext.pop();
}
void ModelManagerDistributed::initializeModelEqEngine(
eq::EqualityEngineNotify* notify)
{
// initialize the model equality engine, use the provided notification object,
// which belongs e.g. to CombinationModelBased
EeSetupInfo esim;
esim.d_notify = notify;
esim.d_name = d_model->getName() + "::ee";
esim.d_constantsAreTriggers = false;
d_modelEqualityEngineAlloc.reset(
d_eem.allocateEqualityEngine(esim, &d_modelEeContext));
d_modelEqualityEngine = d_modelEqualityEngineAlloc.get();
// finish initializing the model
d_model->finishInit(d_modelEqualityEngine);
// We push a context during initialization since the model is cleared during
// collectModelInfo using pop/push.
d_modelEeContext.push();
}
bool ModelManagerDistributed::prepareModel()
{
Trace("model-builder") << "ModelManagerDistributed: reset model..."
<< std::endl;
// push/pop to clear the equality engine of the model
d_modelEeContext.pop();
d_modelEeContext.push();
// Collect model info from the theories
Trace("model-builder") << "ModelManagerDistributed: Collect model info..."
<< std::endl;
// Consult each active theory to get all relevant information concerning the
// model, which includes both dump their equality information and assigning
// values. Notice the order of theories here is important and is the same
// as the list in CVC5_FOR_EACH_THEORY in theory_engine.cpp.
const LogicInfo& logicInfo = d_env.getLogicInfo();
for (TheoryId theoryId = theory::THEORY_FIRST; theoryId < theory::THEORY_LAST;
++theoryId)
{
if (!logicInfo.isTheoryEnabled(theoryId))
{
// theory not active, skip
continue;
}
Theory* t = d_te.theoryOf(theoryId);
if (theoryId == TheoryId::THEORY_BOOL
|| theoryId == TheoryId::THEORY_BUILTIN)
{
Trace("model-builder")
<< " Skipping theory " << theoryId
<< " as it does not contribute to the model anyway" << std::endl;
continue;
}
Trace("model-builder") << " CollectModelInfo on theory: " << theoryId
<< std::endl;
// collect the asserted terms
std::set<Node> termSet;
t->collectAssertedTerms(termSet);
// also get relevant terms
t->computeRelevantTerms(termSet);
if (!t->collectModelInfo(d_model.get(), termSet))
{
Trace("model-builder")
<< "ModelManagerDistributed: fail collect model info" << std::endl;
return false;
}
}
if (!collectModelBooleanVariables())
{
Trace("model-builder") << "ModelManagerDistributed: fail Boolean variables"
<< std::endl;
return false;
}
return true;
}
bool ModelManagerDistributed::finishBuildModel() const
{
// do not use relevant terms
if (!d_modelBuilder->buildModel(d_model.get()))
{
Trace("model-builder") << "ModelManager: fail build model" << std::endl;
return false;
}
return true;
}
} // namespace theory
} // namespace cvc5
|