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/******************************************************************************
* 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.
* ****************************************************************************
*
* Incompleteness enumeration.
*/
#include "cvc5_private.h"
#ifndef CVC5__THEORY__INCOMPLETE_ID_H
#define CVC5__THEORY__INCOMPLETE_ID_H
#include <iosfwd>
namespace cvc5 {
namespace theory {
/**
* Reasons for incompleteness in cvc5.
*/
enum class IncompleteId
{
// the non-linear arithmetic solver was disabled
ARITH_NL_DISABLED,
// the non-linear arithmetic solver was incomplete
ARITH_NL,
// incomplete due to lack of a complete quantifiers strategy
QUANTIFIERS,
// we failed to verify the correctness of a candidate solution in SyGuS
QUANTIFIERS_SYGUS_NO_VERIFY,
// incomplete due to counterexample-guided instantiation not being complete
QUANTIFIERS_CEGQI,
// incomplete due to finite model finding not being complete
QUANTIFIERS_FMF,
// incomplete due to explicitly recorded instantiations
QUANTIFIERS_RECORDED_INST,
// incomplete due to limited number of allowed instantiation rounds
QUANTIFIERS_MAX_INST_ROUNDS,
// we solved a negated synthesis conjecture and will terminate as a subsolver
// with unknown
QUANTIFIERS_SYGUS_SOLVED,
// incomplete due to separation logic
SEP,
// relations were used in combination with set cardinality constraints
SETS_RELS_CARD,
// we skipped processing a looping word equation
STRINGS_LOOP_SKIP,
// we could not simplify a regular expression membership
STRINGS_REGEXP_NO_SIMPLIFY,
// incomplete due to sequence of a dynamic finite type (e.g. a type that
// we know is finite, but its exact cardinality is not fixed. For example,
// when finite model finding is enabled, uninterpreted sorts have a
// cardinality that depends on their interpretation in the current model).
SEQ_FINITE_DYNAMIC_CARDINALITY,
// HO extensionality axiom was disabled
UF_HO_EXT_DISABLED,
// UF+cardinality solver was disabled
UF_CARD_DISABLED,
// UF+cardinality solver used in an incomplete mode
UF_CARD_MODE,
//-------------------------------------- unknown
UNKNOWN
};
/**
* Converts an incompleteness id to a string.
*
* @param i The incompleteness identifier
* @return The name of the incompleteness identifier
*/
const char* toString(IncompleteId i);
/**
* Writes an incompleteness identifier to a stream.
*
* @param out The stream to write to
* @param i The incompleteness identifier to write to the stream
* @return The stream
*/
std::ostream& operator<<(std::ostream& out, IncompleteId i);
} // namespace theory
} // namespace cvc5
#endif /* CVC5__THEORY__INCOMPLETE_ID_H */
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