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
/*++
Copyright (c) 2015 Microsoft Corporation
--*/
/*--
Module Name:
hnf.h
Abstract:
Horn normal form conversion.
Author:
Notes:
Very similar to NNF.
--*/
#pragma once
#include "ast/ast.h"
#include "util/params.h"
#include "ast/normal_forms/defined_names.h"
#include "ast/converters/proof_converter.h"
class hnf {
class imp;
imp * m_imp;
public:
hnf(ast_manager & m);
~hnf();
void operator()(expr * n, // [IN] expression that should be put into Horn NF
proof* p, // [IN] proof of n
expr_ref_vector & rs, // [OUT] resultant (conjunction) of expressions
proof_ref_vector& ps // [OUT] proofs of rs
);
void set_name(symbol const& name);
void reset();
func_decl_ref_vector const& get_fresh_predicates();
};