1 /********************* */
2 /*! \file proof_rule.cpp
4 ** Top contributors (to current version):
5 ** Haniel Barbosa, Andrew Reynolds
6 ** This file is part of the CVC4 project.
7 ** Copyright (c) 2009-2020 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.\endverbatim
12 ** \brief Implementation of proof rule
15 #include "expr/proof_rule.h"
21 const char* toString(PfRule id
)
25 //================================================= Core rules
26 case PfRule::ASSUME
: return "ASSUME";
27 case PfRule::SCOPE
: return "SCOPE";
28 case PfRule::SUBS
: return "SUBS";
29 case PfRule::REWRITE
: return "REWRITE";
30 case PfRule::MACRO_SR_EQ_INTRO
: return "MACRO_SR_EQ_INTRO";
31 case PfRule::MACRO_SR_PRED_INTRO
: return "MACRO_SR_PRED_INTRO";
32 case PfRule::MACRO_SR_PRED_ELIM
: return "MACRO_SR_PRED_ELIM";
33 case PfRule::MACRO_SR_PRED_TRANSFORM
: return "MACRO_SR_PRED_TRANSFORM";
34 case PfRule::THEORY_REWRITE
: return "THEORY_REWRITE";
35 case PfRule::REMOVE_TERM_FORMULA_AXIOM
: return "REMOVE_TERM_FORMULA_AXIOM";
36 //================================================= Trusted rules
37 case PfRule::PREPROCESS
: return "PREPROCESS";
38 case PfRule::PREPROCESS_LEMMA
: return "PREPROCESS_LEMMA";
39 case PfRule::THEORY_PREPROCESS
: return "THEORY_PREPROCESS";
40 case PfRule::THEORY_PREPROCESS_LEMMA
: return "THEORY_PREPROCESS_LEMMA";
41 case PfRule::WITNESS_AXIOM
: return "WITNESS_AXIOM";
42 //================================================= Boolean rules
43 case PfRule::SPLIT
: return "SPLIT";
44 case PfRule::EQ_RESOLVE
: return "EQ_RESOLVE";
45 case PfRule::AND_ELIM
: return "AND_ELIM";
46 case PfRule::AND_INTRO
: return "AND_INTRO";
47 case PfRule::NOT_OR_ELIM
: return "NOT_OR_ELIM";
48 case PfRule::IMPLIES_ELIM
: return "IMPLIES_ELIM";
49 case PfRule::NOT_IMPLIES_ELIM1
: return "NOT_IMPLIES_ELIM1";
50 case PfRule::NOT_IMPLIES_ELIM2
: return "NOT_IMPLIES_ELIM2";
51 case PfRule::EQUIV_ELIM1
: return "EQUIV_ELIM1";
52 case PfRule::EQUIV_ELIM2
: return "EQUIV_ELIM2";
53 case PfRule::NOT_EQUIV_ELIM1
: return "NOT_EQUIV_ELIM1";
54 case PfRule::NOT_EQUIV_ELIM2
: return "NOT_EQUIV_ELIM2";
55 case PfRule::XOR_ELIM1
: return "XOR_ELIM1";
56 case PfRule::XOR_ELIM2
: return "XOR_ELIM2";
57 case PfRule::NOT_XOR_ELIM1
: return "NOT_XOR_ELIM1";
58 case PfRule::NOT_XOR_ELIM2
: return "NOT_XOR_ELIM2";
59 case PfRule::ITE_ELIM1
: return "ITE_ELIM1";
60 case PfRule::ITE_ELIM2
: return "ITE_ELIM2";
61 case PfRule::NOT_ITE_ELIM1
: return "NOT_ITE_ELIM1";
62 case PfRule::NOT_ITE_ELIM2
: return "NOT_ITE_ELIM2";
63 case PfRule::CONTRA
: return "CONTRA";
64 //================================================= De Morgan rules
65 case PfRule::NOT_AND
: return "NOT_AND";
66 //================================================= CNF rules
67 case PfRule::CNF_AND_POS
: return "CNF_AND_POS";
68 case PfRule::CNF_AND_NEG
: return "CNF_AND_NEG";
69 case PfRule::CNF_OR_POS
: return "CNF_OR_POS";
70 case PfRule::CNF_OR_NEG
: return "CNF_OR_NEG";
71 case PfRule::CNF_IMPLIES_POS
: return "CNF_IMPLIES_POS";
72 case PfRule::CNF_IMPLIES_NEG1
: return "CNF_IMPLIES_NEG1";
73 case PfRule::CNF_IMPLIES_NEG2
: return "CNF_IMPLIES_NEG2";
74 case PfRule::CNF_EQUIV_POS1
: return "CNF_EQUIV_POS1";
75 case PfRule::CNF_EQUIV_POS2
: return "CNF_EQUIV_POS2";
76 case PfRule::CNF_EQUIV_NEG1
: return "CNF_EQUIV_NEG1";
77 case PfRule::CNF_EQUIV_NEG2
: return "CNF_EQUIV_NEG2";
78 case PfRule::CNF_XOR_POS1
: return "CNF_XOR_POS1";
79 case PfRule::CNF_XOR_POS2
: return "CNF_XOR_POS2";
80 case PfRule::CNF_XOR_NEG1
: return "CNF_XOR_NEG1";
81 case PfRule::CNF_XOR_NEG2
: return "CNF_XOR_NEG2";
82 case PfRule::CNF_ITE_POS1
: return "CNF_ITE_POS1";
83 case PfRule::CNF_ITE_POS2
: return "CNF_ITE_POS2";
84 case PfRule::CNF_ITE_POS3
: return "CNF_ITE_POS3";
85 case PfRule::CNF_ITE_NEG1
: return "CNF_ITE_NEG1";
86 case PfRule::CNF_ITE_NEG2
: return "CNF_ITE_NEG2";
87 case PfRule::CNF_ITE_NEG3
: return "CNF_ITE_NEG3";
88 //================================================= Equality rules
89 case PfRule::REFL
: return "REFL";
90 case PfRule::SYMM
: return "SYMM";
91 case PfRule::TRANS
: return "TRANS";
92 case PfRule::CONG
: return "CONG";
93 case PfRule::TRUE_INTRO
: return "TRUE_INTRO";
94 case PfRule::TRUE_ELIM
: return "TRUE_ELIM";
95 case PfRule::FALSE_INTRO
: return "FALSE_INTRO";
96 case PfRule::FALSE_ELIM
: return "FALSE_ELIM";
97 case PfRule::HO_APP_ENCODE
: return "HO_APP_ENCODE";
98 case PfRule::HO_CONG
: return "HO_CONG";
99 //================================================= Quantifiers rules
100 case PfRule::WITNESS_INTRO
: return "WITNESS_INTRO";
101 case PfRule::EXISTS_INTRO
: return "EXISTS_INTRO";
102 case PfRule::SKOLEMIZE
: return "SKOLEMIZE";
103 case PfRule::INSTANTIATE
: return "INSTANTIATE";
104 //================================================= String rules
105 case PfRule::CONCAT_EQ
: return "CONCAT_EQ";
106 case PfRule::CONCAT_UNIFY
: return "CONCAT_UNIFY";
107 case PfRule::CONCAT_CONFLICT
: return "CONCAT_CONFLICT";
108 case PfRule::CONCAT_SPLIT
: return "CONCAT_SPLIT";
109 case PfRule::CONCAT_CSPLIT
: return "CONCAT_CSPLIT";
110 case PfRule::CONCAT_LPROP
: return "CONCAT_LPROP";
111 case PfRule::CONCAT_CPROP
: return "CONCAT_CPROP";
112 case PfRule::STRING_DECOMPOSE
: return "STRING_DECOMPOSE";
113 case PfRule::STRING_LENGTH_POS
: return "STRING_LENGTH_POS";
114 case PfRule::STRING_LENGTH_NON_EMPTY
: return "STRING_LENGTH_NON_EMPTY";
115 case PfRule::STRING_REDUCTION
: return "STRING_REDUCTION";
116 case PfRule::STRING_EAGER_REDUCTION
: return "STRING_EAGER_REDUCTION";
117 case PfRule::RE_INTER
: return "RE_INTER";
118 case PfRule::RE_UNFOLD_POS
: return "RE_UNFOLD_POS";
119 case PfRule::RE_UNFOLD_NEG
: return "RE_UNFOLD_NEG";
120 case PfRule::RE_UNFOLD_NEG_CONCAT_FIXED
:
121 return "RE_UNFOLD_NEG_CONCAT_FIXED";
122 case PfRule::RE_ELIM
: return "RE_ELIM";
123 case PfRule::STRING_CODE_INJ
: return "STRING_CODE_INJ";
124 case PfRule::STRING_SEQ_UNIT_INJ
: return "STRING_SEQ_UNIT_INJ";
125 case PfRule::STRING_TRUST
: return "STRING_TRUST";
126 //================================================= Arith rules
127 case PfRule::ARITH_SCALE_SUM_UPPER_BOUNDS
: return "ARITH_SCALE_SUM_UPPER_BOUNDS";
128 case PfRule::ARITH_TRICHOTOMY
: return "ARITH_TRICHOTOMY";
129 case PfRule::INT_TIGHT_LB
: return "INT_TIGHT_LB";
130 case PfRule::INT_TIGHT_UB
: return "INT_TIGHT_UB";
131 case PfRule::INT_TRUST
: return "INT_TRUST";
132 case PfRule::ARITH_OP_ELIM_AXIOM
: return "ARITH_OP_ELIM_AXIOM";
133 //================================================= Unknown rule
134 case PfRule::UNKNOWN
: return "UNKNOWN";
139 std::ostream
& operator<<(std::ostream
& out
, PfRule id
)
145 size_t PfRuleHashFunction::operator()(PfRule id
) const
147 return static_cast<size_t>(id
);