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