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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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Leonardo de Moura 2012-10-02 11:35:25 -07:00
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lib/qfnra_nlsat_tactic.cpp Normal file
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/*++
Copyright (c) 2012 Microsoft Corporation
Module Name:
qfnra_nlsat_tactic.h
Abstract:
Tactic based on nlsat for solving QF_NRA problems
Author:
Leonardo (leonardo) 2012-01-23
Notes:
--*/
#include"tactical.h"
#include"tseitin_cnf_tactic.h"
#include"degree_shift_tactic.h"
#include"purify_arith_tactic.h"
#include"nlsat_tactic.h"
#include"factor_tactic.h"
#include"simplify_tactic.h"
#include"elim_uncnstr_tactic.h"
#include"propagate_values_tactic.h"
#include"solve_eqs_tactic.h"
#include"elim_term_ite_tactic.h"
tactic * mk_qfnra_nlsat_tactic(ast_manager & m, params_ref const & p) {
params_ref main_p = p;
main_p.set_bool(":elim-and", true);
main_p.set_bool(":blast-distinct", true);
params_ref purify_p = p;
purify_p.set_bool(":complete", false); // temporary hack, solver does not support uninterpreted functions for encoding (div0 x) applications. So, we replace it application of this kind with an uninterpreted function symbol.
tactic * factor;
if (p.get_bool(":factor", true))
factor = mk_factor_tactic(m, p);
else
factor = mk_skip_tactic();
return and_then(and_then(using_params(mk_simplify_tactic(m, p),
main_p),
using_params(mk_purify_arith_tactic(m, p),
purify_p),
mk_propagate_values_tactic(m, p),
mk_solve_eqs_tactic(m, p),
mk_elim_uncnstr_tactic(m, p),
mk_elim_term_ite_tactic(m, p)),
and_then(/* mk_degree_shift_tactic(m, p), */ // may affect full dimensionality detection
factor,
mk_solve_eqs_tactic(m, p),
using_params(mk_simplify_tactic(m, p),
main_p),
mk_tseitin_cnf_core_tactic(m, p),
using_params(mk_simplify_tactic(m, p),
main_p),
mk_nlsat_tactic(m, p)));
}