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fixes for model converter default case

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This commit is contained in:
Nikolaj Bjorner 2021-09-16 17:31:26 +01:00
parent fe3f139eb2
commit cef964fda3
1 changed files with 17 additions and 8 deletions
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25
src/ast/fpa/bv2fpa_converter.cpp
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@ -19,6 +19,7 @@ Notes:
#include<math.h>
#include "ast/ast_smt2_pp.h"
#include "ast/ast_pp.h"
#include "ast/well_sorted.h"
#include "ast/rewriter/th_rewriter.h"
#include "ast/rewriter/fpa_rewriter.h"
@ -412,24 +413,32 @@ void bv2fpa_converter::convert_min_max_specials(model_core * mc, model_core * ta
app * np_cnst = kv.m_value.second;
expr_ref pzero(m), nzero(m);
pzero = m_fpa_util.mk_pzero(f->get_range());
nzero = m_fpa_util.mk_nzero(f->get_range());
sort* srt = f->get_range();
pzero = m_fpa_util.mk_pzero(srt);
nzero = m_fpa_util.mk_nzero(srt);
expr_ref pn(m), np(m);
if (!mc->eval(pn_cnst->get_decl(), pn)) pn = pzero;
if (!mc->eval(np_cnst->get_decl(), np)) np = pzero;
if (!mc->eval(pn_cnst->get_decl(), pn)) pn = m_bv_util.mk_numeral(0, 1);
if (!mc->eval(np_cnst->get_decl(), np)) np = m_bv_util.mk_numeral(0, 1);
seen.insert(pn_cnst->get_decl());
seen.insert(np_cnst->get_decl());
rational pn_num, np_num;
unsigned bv_sz;
m_bv_util.is_numeral(pn, pn_num, bv_sz);
m_bv_util.is_numeral(np, np_num, bv_sz);
VERIFY(m_bv_util.is_numeral(pn, pn_num, bv_sz));
VERIFY(m_bv_util.is_numeral(np, np_num, bv_sz));
func_interp * flt_fi = alloc(func_interp, m, f->get_arity());
expr * pn_args[2] = { pzero, nzero };
if (pn != np) flt_fi->insert_new_entry(pn_args, (pn_num.is_one() ? nzero : pzero));
flt_fi->set_else(np_num.is_one() ? nzero : pzero);
expr * np_args[2] = { nzero, pzero };
flt_fi->insert_new_entry(pn_args, (pn_num.is_one() ? nzero : pzero));
flt_fi->insert_new_entry(np_args, (np_num.is_one() ? nzero : pzero));
auto fid = m_fpa_util.get_family_id();
auto k = is_decl_of(f, fid, OP_FPA_MIN) ? OP_FPA_MIN_I : OP_FPA_MAX_I;
func_decl_ref min_max_i(m.mk_func_decl(fid, k, 0, nullptr, 2, pn_args), m);
expr_ref else_value(m.mk_app(min_max_i, m.mk_var(0, srt), m.mk_var(1, srt)), m);
flt_fi->set_else(else_value);
target_model->register_decl(f, flt_fi);
TRACE("bv2fpa", tout << "fp.min/fp.max special: " << std::endl <<