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GCC Code Coverage Report

Directory:	.		Exec	Total	Coverage
File:	src/theory/inference_manager_buffered.cpp	Lines:	81	87	93.1 %
Date:	2021-09-29	Branches:	55	152	36.2 %


/******************************************************************************
 * Top contributors (to current version):
 *   Andrew Reynolds, Gereon Kremer, Aina Niemetz
 *
 * 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.
 * ****************************************************************************
 *
 * A buffered inference manager.
 */

#include "theory/inference_manager_buffered.h"

#include "theory/rewriter.h"
#include "theory/theory.h"
#include "theory/theory_state.h"

using namespace cvc5::kind;

namespace cvc5 {
namespace theory {

InferenceManagerBuffered::InferenceManagerBuffered(Env& env,
                                                   Theory& t,
                                                   TheoryState& state,
                                                   ProofNodeManager* pnm,
                                                   const std::string& statsName,
                                                   bool cacheLemmas)
    : TheoryInferenceManager(env, t, state, pnm, statsName, cacheLemmas),
      d_processingPendingLemmas(false)
{
}

bool InferenceManagerBuffered::hasPending() const
{
  return hasPendingFact() || hasPendingLemma();
}

bool InferenceManagerBuffered::hasPendingFact() const
{
  return !d_pendingFact.empty();
}

bool InferenceManagerBuffered::hasPendingLemma() const
{
  return !d_pendingLem.empty();
}

bool InferenceManagerBuffered::addPendingLemma(Node lem,
                                               InferenceId id,
                                               LemmaProperty p,
                                               ProofGenerator* pg,
                                               bool checkCache)
{
  if (checkCache)
  {
    // check if it is unique up to rewriting
    Node lemr = Rewriter::rewrite(lem);
    if (hasCachedLemma(lemr, p))
    {
      return false;
    }
  }
  // make the simple theory lemma
  d_pendingLem.emplace_back(new SimpleTheoryLemma(id, lem, p, pg));
  return true;
}

void InferenceManagerBuffered::addPendingLemma(
    std::unique_ptr<TheoryInference> lemma)
{
  d_pendingLem.emplace_back(std::move(lemma));
}

void InferenceManagerBuffered::addPendingFact(Node conc,
                                              InferenceId id,
                                              Node exp,
                                              ProofGenerator* pg)
{
  // make a simple theory internal fact
  Assert(conc.getKind() != AND && conc.getKind() != OR);
  d_pendingFact.emplace_back(new SimpleTheoryInternalFact(id, conc, exp, pg));
}

void InferenceManagerBuffered::addPendingFact(
    std::unique_ptr<TheoryInference> fact)
{
  d_pendingFact.emplace_back(std::move(fact));
}

void InferenceManagerBuffered::addPendingPhaseRequirement(Node lit, bool pol)
{
  // it is the responsibility of the caller to ensure lit is rewritten
  d_pendingReqPhase[lit] = pol;
}

void InferenceManagerBuffered::doPendingFacts()
{
  size_t i = 0;
  while (!d_theoryState.isInConflict() && i < d_pendingFact.size())
  {
    // assert the internal fact, which notice may enqueue more pending facts in
    // this loop, or result in a conflict.
    assertInternalFactTheoryInference(d_pendingFact[i].get());
    i++;
  }
  d_pendingFact.clear();
}

void InferenceManagerBuffered::doPendingLemmas()
{
  if (d_processingPendingLemmas)
  {
    // already processing
    return;
  }
  d_processingPendingLemmas = true;
  size_t i = 0;
  while (i < d_pendingLem.size())
  {
    // process this lemma, which notice may enqueue more pending lemmas in this
    // loop, or clear the lemmas.
    lemmaTheoryInference(d_pendingLem[i].get());
    i++;
  }
  d_pendingLem.clear();
  d_processingPendingLemmas = false;
}

void InferenceManagerBuffered::doPendingPhaseRequirements()
{
  // process the pending require phase calls
  for (const std::pair<const Node, bool>& prp : d_pendingReqPhase)
  {
    requirePhase(prp.first, prp.second);
  }
  d_pendingReqPhase.clear();
}
void InferenceManagerBuffered::clearPending()
{
  d_pendingFact.clear();
  d_pendingLem.clear();
  d_pendingReqPhase.clear();
}
void InferenceManagerBuffered::clearPendingFacts() { d_pendingFact.clear(); }
void InferenceManagerBuffered::clearPendingLemmas() { d_pendingLem.clear(); }
void InferenceManagerBuffered::clearPendingPhaseRequirements()
{
  d_pendingReqPhase.clear();
}

std::size_t InferenceManagerBuffered::numPendingLemmas() const
{
  return d_pendingLem.size();
}
std::size_t InferenceManagerBuffered::numPendingFacts() const
{
  return d_pendingFact.size();
}

void InferenceManagerBuffered::lemmaTheoryInference(TheoryInference* lem)
{
  // process this lemma
  LemmaProperty p = LemmaProperty::NONE;
  TrustNode tlem = lem->processLemma(p);
  Assert(!tlem.isNull());
  // send the lemma
  trustedLemma(tlem, lem->getId(), p);
}

void InferenceManagerBuffered::assertInternalFactTheoryInference(
    TheoryInference* fact)
{
  // process this fact
  std::vector<Node> exp;
  ProofGenerator* pg = nullptr;
  Node lit = fact->processFact(exp, pg);
  Assert(!lit.isNull());
  bool pol = lit.getKind() != NOT;
  TNode atom = pol ? lit : lit[0];
  // no double negation or conjunctive conclusions
  Assert(atom.getKind() != NOT && atom.getKind() != AND);
  // assert the internal fact
  assertInternalFact(atom, pol, fact->getId(), exp, pg);
}

void InferenceManagerBuffered::notifyInConflict()
{
  d_theoryState.notifyInConflict();
  // also clear the pending facts, which will be stale after backtracking
  clearPending();
}

}  // namespace theory
}  // namespace cvc5


Generated by: GCOVR (Version 3.2)

Line	Exec	Source
1		/******************************************************************************
2		* Top contributors (to current version):
3		* Andrew Reynolds, Gereon Kremer, Aina Niemetz
4		*
5		* This file is part of the cvc5 project.
6		*
7		* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
8		* in the top-level source directory and their institutional affiliations.
9		* All rights reserved. See the file COPYING in the top-level source
10		* directory for licensing information.
11		* ****************************************************************************
12		*
13		* A buffered inference manager.
14		*/
15
16		#include "theory/inference_manager_buffered.h"
17
18		#include "theory/rewriter.h"
19		#include "theory/theory.h"
20		#include "theory/theory_state.h"
21
22		using namespace cvc5::kind;
23
24		namespace cvc5 {
25		namespace theory {
26
27	43897	InferenceManagerBuffered::InferenceManagerBuffered(Env& env,
28		Theory& t,
29		TheoryState& state,
30		ProofNodeManager* pnm,
31		const std::string& statsName,
32	43897	bool cacheLemmas)
33		: TheoryInferenceManager(env, t, state, pnm, statsName, cacheLemmas),
34	43897	d_processingPendingLemmas(false)
35		{
36	43897	}
37
38	2957922	bool InferenceManagerBuffered::hasPending() const
39		{
40	2957922	return hasPendingFact() \|\| hasPendingLemma();
41		}
42
43	3500440	bool InferenceManagerBuffered::hasPendingFact() const
44		{
45	3500440	return !d_pendingFact.empty();
46		}
47
48	3542007	bool InferenceManagerBuffered::hasPendingLemma() const
49		{
50	3542007	return !d_pendingLem.empty();
51		}
52
53	56978	bool InferenceManagerBuffered::addPendingLemma(Node lem,
54		InferenceId id,
55		LemmaProperty p,
56		ProofGenerator* pg,
57		bool checkCache)
58		{
59	56978	if (checkCache)
60		{
61		// check if it is unique up to rewriting
62	97407	Node lemr = Rewriter::rewrite(lem);
63	56978	if (hasCachedLemma(lemr, p))
64		{
65	16549	return false;
66		}
67		}
68		// make the simple theory lemma
69	40429	d_pendingLem.emplace_back(new SimpleTheoryLemma(id, lem, p, pg));
70	40429	return true;
71		}
72
73	17635	void InferenceManagerBuffered::addPendingLemma(
74		std::unique_ptr<TheoryInference> lemma)
75		{
76	17635	d_pendingLem.emplace_back(std::move(lemma));
77	17635	}
78
79		void InferenceManagerBuffered::addPendingFact(Node conc,
80		InferenceId id,
81		Node exp,
82		ProofGenerator* pg)
83		{
84		// make a simple theory internal fact
85		Assert(conc.getKind() != AND && conc.getKind() != OR);
86		d_pendingFact.emplace_back(new SimpleTheoryInternalFact(id, conc, exp, pg));
87		}
88
89	24555	void InferenceManagerBuffered::addPendingFact(
90		std::unique_ptr<TheoryInference> fact)
91		{
92	24555	d_pendingFact.emplace_back(std::move(fact));
93	24555	}
94
95	3287	void InferenceManagerBuffered::addPendingPhaseRequirement(Node lit, bool pol)
96		{
97		// it is the responsibility of the caller to ensure lit is rewritten
98	3287	d_pendingReqPhase[lit] = pol;
99	3287	}
100
101	3265599	void InferenceManagerBuffered::doPendingFacts()
102		{
103	3265599	size_t i = 0;
104	3826335	while (!d_theoryState.isInConflict() && i < d_pendingFact.size())
105		{
106		// assert the internal fact, which notice may enqueue more pending facts in
107		// this loop, or result in a conflict.
108	280368	assertInternalFactTheoryInference(d_pendingFact[i].get());
109	280368	i++;
110		}
111	3265599	d_pendingFact.clear();
112	3265599	}
113
114	3129854	void InferenceManagerBuffered::doPendingLemmas()
115		{
116	3129854	if (d_processingPendingLemmas)
117		{
118		// already processing
119	4564	return;
120		}
121	3125290	d_processingPendingLemmas = true;
122	3125290	size_t i = 0;
123	3252888	while (i < d_pendingLem.size())
124		{
125		// process this lemma, which notice may enqueue more pending lemmas in this
126		// loop, or clear the lemmas.
127	63800	lemmaTheoryInference(d_pendingLem[i].get());
128	63799	i++;
129		}
130	3125289	d_pendingLem.clear();
131	3125289	d_processingPendingLemmas = false;
132		}
133
134	154679	void InferenceManagerBuffered::doPendingPhaseRequirements()
135		{
136		// process the pending require phase calls
137	157965	for (const std::pair<const Node, bool>& prp : d_pendingReqPhase)
138		{
139	3286	requirePhase(prp.first, prp.second);
140		}
141	154679	d_pendingReqPhase.clear();
142	154679	}
143	901278	void InferenceManagerBuffered::clearPending()
144		{
145	901278	d_pendingFact.clear();
146	901278	d_pendingLem.clear();
147	901278	d_pendingReqPhase.clear();
148	901278	}
149	1033	void InferenceManagerBuffered::clearPendingFacts() { d_pendingFact.clear(); }
150	15191	void InferenceManagerBuffered::clearPendingLemmas() { d_pendingLem.clear(); }
151	1804	void InferenceManagerBuffered::clearPendingPhaseRequirements()
152		{
153	1804	d_pendingReqPhase.clear();
154	1804	}
155
156	179500	std::size_t InferenceManagerBuffered::numPendingLemmas() const
157		{
158	179500	return d_pendingLem.size();
159		}
160		std::size_t InferenceManagerBuffered::numPendingFacts() const
161		{
162		return d_pendingFact.size();
163		}
164
165	65657	void InferenceManagerBuffered::lemmaTheoryInference(TheoryInference* lem)
166		{
167		// process this lemma
168	65657	LemmaProperty p = LemmaProperty::NONE;
169	131314	TrustNode tlem = lem->processLemma(p);
170	65657	Assert(!tlem.isNull());
171		// send the lemma
172	65657	trustedLemma(tlem, lem->getId(), p);
173	65656	}
174
175	280368	void InferenceManagerBuffered::assertInternalFactTheoryInference(
176		TheoryInference* fact)
177		{
178		// process this fact
179	560736	std::vector<Node> exp;
180	280368	ProofGenerator* pg = nullptr;
181	560736	Node lit = fact->processFact(exp, pg);
182	280368	Assert(!lit.isNull());
183	280368	bool pol = lit.getKind() != NOT;
184	560736	TNode atom = pol ? lit : lit[0];
185		// no double negation or conjunctive conclusions
186	280368	Assert(atom.getKind() != NOT && atom.getKind() != AND);
187		// assert the internal fact
188	280368	assertInternalFact(atom, pol, fact->getId(), exp, pg);
189	280368	}
190
191	884450	void InferenceManagerBuffered::notifyInConflict()
192		{
193	884450	d_theoryState.notifyInConflict();
194		// also clear the pending facts, which will be stale after backtracking
195	884450	clearPending();
196	884450	}
197
198		} // namespace theory
199	22746	} // namespace cvc5