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merge useful utilities from qsat

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-03-19 12:01:44 -07:00
parent f951372f03
commit f175f864ec
32 changed files with 323 additions and 38 deletions
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13
src/ast/ast_util.h
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@ -121,18 +121,29 @@ app * mk_or(ast_manager & m, unsigned num_args, app * const * args);
inline app_ref mk_or(app_ref_vector const& args) { return app_ref(mk_or(args.get_manager(), args.size(), args.c_ptr()), args.get_manager()); }
inline expr_ref mk_or(expr_ref_vector const& args) { return expr_ref(mk_or(args.get_manager(), args.size(), args.c_ptr()), args.get_manager()); }
/**
Return a if arg = (not a)
Retur (not arg) otherwise
*/
expr * mk_not(ast_manager & m, expr * arg);
/**
Negate and push over conjunction or disjunction.
*/
expr_ref push_not(const expr_ref& arg);
/**
Return the expression (and (not (= args[0] args[1])) (not (= args[0] args[2])) ... (not (= args[num_args-2] args[num_args-1])))
*/
expr * expand_distinct(ast_manager & m, unsigned num_args, expr * const * args);
/**
Create simplified distinct term. Binary distinct becomes a single disequality.
*/
expr * mk_distinct(ast_manager& m, unsigned num_args, expr * const * args);
expr_ref mk_distinct(expr_ref_vector const& args);
/**
\brief Collect top-level conjunctions and disjunctions.
*/