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/********************* */
/*! \file infer_info.cpp
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds, Andres Noetzli
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 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.\endverbatim
**
** \brief Implementation of inference information utility.
**/
#include "theory/strings/infer_info.h"
namespace CVC4 {
namespace theory {
namespace strings {
const char* toString(Inference i)
{
switch (i)
{
case Inference::I_NORM_S: return "I_NORM_S";
case Inference::I_CONST_MERGE: return "I_CONST_MERGE";
case Inference::I_CONST_CONFLICT: return "I_CONST_CONFLICT";
case Inference::I_NORM: return "I_NORM";
case Inference::UNIT_INJ: return "UNIT_INJ";
case Inference::UNIT_CONST_CONFLICT: return "UNIT_CONST_CONFLICT";
case Inference::CARD_SP: return "CARD_SP";
case Inference::CARDINALITY: return "CARDINALITY";
case Inference::I_CYCLE_E: return "I_CYCLE_E";
case Inference::I_CYCLE: return "I_CYCLE";
case Inference::F_CONST: return "F_CONST";
case Inference::F_UNIFY: return "F_UNIFY";
case Inference::F_ENDPOINT_EMP: return "F_ENDPOINT_EMP";
case Inference::F_ENDPOINT_EQ: return "F_ENDPOINT_EQ";
case Inference::F_NCTN: return "F_NCTN";
case Inference::N_EQ_CONF: return "N_EQ_CONF";
case Inference::N_ENDPOINT_EMP: return "N_ENDPOINT_EMP";
case Inference::N_UNIFY: return "N_UNIFY";
case Inference::N_ENDPOINT_EQ: return "N_ENDPOINT_EQ";
case Inference::N_CONST: return "N_CONST";
case Inference::INFER_EMP: return "INFER_EMP";
case Inference::SSPLIT_CST_PROP: return "SSPLIT_CST_PROP";
case Inference::SSPLIT_VAR_PROP: return "SSPLIT_VAR_PROP";
case Inference::LEN_SPLIT: return "LEN_SPLIT";
case Inference::LEN_SPLIT_EMP: return "LEN_SPLIT_EMP";
case Inference::SSPLIT_CST: return "SSPLIT_CST";
case Inference::SSPLIT_VAR: return "SSPLIT_VAR";
case Inference::FLOOP: return "FLOOP";
case Inference::FLOOP_CONFLICT: return "FLOOP_CONFLICT";
case Inference::NORMAL_FORM: return "NORMAL_FORM";
case Inference::N_NCTN: return "N_NCTN";
case Inference::LEN_NORM: return "LEN_NORM";
case Inference::DEQ_DISL_EMP_SPLIT: return "DEQ_DISL_EMP_SPLIT";
case Inference::DEQ_DISL_FIRST_CHAR_EQ_SPLIT:
return "DEQ_DISL_FIRST_CHAR_EQ_SPLIT";
case Inference::DEQ_DISL_FIRST_CHAR_STRING_SPLIT:
return "DEQ_DISL_FIRST_CHAR_STRING_SPLIT";
case Inference::DEQ_STRINGS_EQ: return "DEQ_STRINGS_EQ";
case Inference::DEQ_DISL_STRINGS_SPLIT: return "DEQ_DISL_STRINGS_SPLIT";
case Inference::DEQ_LENS_EQ: return "DEQ_LENS_EQ";
case Inference::DEQ_NORM_EMP: return "DEQ_NORM_EMP";
case Inference::DEQ_LENGTH_SP: return "DEQ_LENGTH_SP";
case Inference::CODE_PROXY: return "CODE_PROXY";
case Inference::CODE_INJ: return "CODE_INJ";
case Inference::RE_NF_CONFLICT: return "RE_NF_CONFLICT";
case Inference::RE_UNFOLD_POS: return "RE_UNFOLD_POS";
case Inference::RE_UNFOLD_NEG: return "RE_UNFOLD_NEG";
case Inference::RE_INTER_INCLUDE: return "RE_INTER_INCLUDE";
case Inference::RE_INTER_CONF: return "RE_INTER_CONF";
case Inference::RE_INTER_INFER: return "RE_INTER_INFER";
case Inference::RE_DELTA: return "RE_DELTA";
case Inference::RE_DELTA_CONF: return "RE_DELTA_CONF";
case Inference::RE_DERIVE: return "RE_DERIVE";
case Inference::EXTF: return "EXTF";
case Inference::EXTF_N: return "EXTF_N";
case Inference::EXTF_D: return "EXTF_D";
case Inference::EXTF_D_N: return "EXTF_D_N";
case Inference::EXTF_EQ_REW: return "EXTF_EQ_REW";
case Inference::CTN_TRANS: return "CTN_TRANS";
case Inference::CTN_DECOMPOSE: return "CTN_DECOMPOSE";
case Inference::CTN_NEG_EQUAL: return "CTN_NEG_EQUAL";
case Inference::CTN_POS: return "CTN_POS";
case Inference::REDUCTION: return "REDUCTION";
default: return "?";
}
}
std::ostream& operator<<(std::ostream& out, Inference i)
{
out << toString(i);
return out;
}
InferInfo::InferInfo() : d_id(Inference::NONE) {}
bool InferInfo::isTrivial() const
{
Assert(!d_conc.isNull());
return d_conc.isConst() && d_conc.getConst<bool>();
}
bool InferInfo::isConflict() const
{
Assert(!d_conc.isNull());
return d_conc.isConst() && !d_conc.getConst<bool>() && d_antn.empty();
}
bool InferInfo::isFact() const
{
Assert(!d_conc.isNull());
TNode atom = d_conc.getKind() == kind::NOT ? d_conc[0] : d_conc;
return !atom.isConst() && atom.getKind() != kind::OR && d_antn.empty();
}
std::ostream& operator<<(std::ostream& out, const InferInfo& ii)
{
out << "(infer " << ii.d_id << " " << ii.d_conc;
if (!ii.d_ant.empty())
{
out << " :ant (" << ii.d_ant << ")";
}
if (!ii.d_antn.empty())
{
out << " :antn (" << ii.d_antn << ")";
}
out << ")";
return out;
}
} // namespace strings
} // namespace theory
} // namespace CVC4
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