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added stubs for get_lower/get_upper required by theory_seq

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2018-06-29 13:43:23 -07:00
parent f2e878047d
commit da44ad7e6f
3 changed files with 44 additions and 10 deletions
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35
src/smt/theory_seq.cpp
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@ -26,6 +26,7 @@ Revision History:
#include "smt/smt_model_generator.h"
#include "smt/theory_seq.h"
#include "smt/theory_arith.h"
#include "smt/theory_lra.h"
#include "smt/smt_kernel.h"
using namespace smt;
@ -3506,6 +3507,8 @@ static bool get_arith_value(context& ctx, theory_id afid, expr* e, expr_ref& v)
if (tha) return tha->get_value(ctx.get_enode(e), v);
theory_i_arith* thi = get_th_arith<theory_i_arith>(ctx, afid, e);
if (thi) return thi->get_value(ctx.get_enode(e), v);
theory_lra* thr = get_th_arith<theory_lra>(ctx, afid, e);
if (thr) return thr->get_value(ctx.get_enode(e), v);
TRACE("seq", tout << "no arithmetic theory\n";);
return false;
}
@ -3531,25 +3534,37 @@ bool theory_seq::lower_bound(expr* _e, rational& lo) const {
context& ctx = get_context();
expr_ref e(m_util.str.mk_length(_e), m);
expr_ref _lo(m);
theory_mi_arith* tha = get_th_arith<theory_mi_arith>(ctx, m_autil.get_family_id(), e);
if (tha && !tha->get_lower(ctx.get_enode(e), _lo)) return false;
if (!tha) {
theory_i_arith* thi = get_th_arith<theory_i_arith>(ctx, m_autil.get_family_id(), e);
if (!thi || !thi->get_lower(ctx.get_enode(e), _lo)) return false;
family_id afid = m_autil.get_family_id();
do {
theory_mi_arith* tha = get_th_arith<theory_mi_arith>(ctx, afid, e);
if (tha && tha->get_lower(ctx.get_enode(e), _lo)) break;
theory_i_arith* thi = get_th_arith<theory_i_arith>(ctx, afid, e);
if (thi && thi->get_lower(ctx.get_enode(e), _lo)) break;
theory_lra* thr = get_th_arith<theory_lra>(ctx, afid, e);
if (thr && thr->get_lower(ctx.get_enode(e), _lo)) break;
TRACE("seq", tout << "no lower bound " << mk_pp(_e, m) << "\n";);
return false;
}
while (false);
return m_autil.is_numeral(_lo, lo) && lo.is_int();
}
bool theory_seq::upper_bound(expr* _e, rational& hi) const {
context& ctx = get_context();
expr_ref e(m_util.str.mk_length(_e), m);
theory_mi_arith* tha = get_th_arith<theory_mi_arith>(ctx, m_autil.get_family_id(), e);
family_id afid = m_autil.get_family_id();
expr_ref _hi(m);
if (tha && !tha->get_upper(ctx.get_enode(e), _hi)) return false;
if (!tha) {
theory_i_arith* thi = get_th_arith<theory_i_arith>(ctx, m_autil.get_family_id(), e);
if (!thi || !thi->get_upper(ctx.get_enode(e), _hi)) return false;
do {
theory_mi_arith* tha = get_th_arith<theory_mi_arith>(ctx, afid, e);
if (tha && tha->get_upper(ctx.get_enode(e), _hi)) break;
theory_i_arith* thi = get_th_arith<theory_i_arith>(ctx, afid, e);
if (thi && thi->get_upper(ctx.get_enode(e), _hi)) break;
theory_lra* thr = get_th_arith<theory_lra>(ctx, afid, e);
if (thr && thr->get_upper(ctx.get_enode(e), _hi)) break;
TRACE("seq", tout << "no upper bound " << mk_pp(_e, m) << "\n";);
return false;
}
while (false);
return m_autil.is_numeral(_hi, hi) && hi.is_int();
}