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https://github.com/Z3Prover/z3
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Refactored and fixed model conversion for fpa2bv conversion of unspecified values via theory_fpa.
This commit is contained in:
Christoph M. Wintersteiger
parent
ab4bb8194e
commit
009af4455d
9 changed files with 817 additions and 644 deletions
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@ -45,7 +45,7 @@ def init_project_def():
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# Simplifier module will be deleted in the future.
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# It has been replaced with rewriter module.
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add_lib('simplifier', ['rewriter'], 'ast/simplifier')
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add_lib('fpa', ['ast', 'util', 'simplifier'], 'ast/fpa')
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add_lib('fpa', ['ast', 'util', 'simplifier', 'model'], 'ast/fpa')
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add_lib('macros', ['simplifier'], 'ast/macros')
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add_lib('pattern', ['normal_forms', 'smt2parser', 'simplifier'], 'ast/pattern')
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add_lib('bit_blaster', ['rewriter', 'simplifier'], 'ast/rewriter/bit_blaster')
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543
src/ast/fpa/bv2fpa_converter.cpp
Normal file
543
src/ast/fpa/bv2fpa_converter.cpp
Normal file
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@ -0,0 +1,543 @@
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/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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bv2fpa_converter.cpp
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Abstract:
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Model conversion for fpa2bv_converter
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Author:
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Christoph (cwinter) 2016-10-15
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Notes:
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--*/
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#include<math.h>
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#include"ast_smt2_pp.h"
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#include"well_sorted.h"
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#include"th_rewriter.h"
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#include"fpa_rewriter.h"
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#include"bv2fpa_converter.h"
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bv2fpa_converter::bv2fpa_converter(ast_manager & m) :
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m(m),
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m_fpa_util(m),
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m_bv_util(m),
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m_th_rw(m) {
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}
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bv2fpa_converter::bv2fpa_converter(ast_manager & m, fpa2bv_converter & conv) :
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m(m),
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m_fpa_util(m),
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m_bv_util(m),
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m_th_rw(m) {
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for (obj_map<func_decl, expr*>::iterator it = conv.m_const2bv.begin();
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it != conv.m_const2bv.end();
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it++)
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{
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m_const2bv.insert(it->m_key, it->m_value);
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m.inc_ref(it->m_key);
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m.inc_ref(it->m_value);
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}
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for (obj_map<func_decl, expr*>::iterator it = conv.m_rm_const2bv.begin();
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it != conv.m_rm_const2bv.end();
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it++)
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{
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m_rm_const2bv.insert(it->m_key, it->m_value);
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m.inc_ref(it->m_key);
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m.inc_ref(it->m_value);
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}
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for (obj_map<func_decl, func_decl*>::iterator it = conv.m_uf2bvuf.begin();
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it != conv.m_uf2bvuf.end();
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it++)
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{
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m_uf2bvuf.insert(it->m_key, it->m_value);
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m.inc_ref(it->m_key);
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m.inc_ref(it->m_value);
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}
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for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = conv.m_min_max_specials.begin();
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it != conv.m_min_max_specials.end();
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it++) {
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m_specials.insert(it->m_key, it->m_value);
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m.inc_ref(it->m_key);
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m.inc_ref(it->m_value.first);
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m.inc_ref(it->m_value.second);
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}
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}
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bv2fpa_converter::~bv2fpa_converter() {
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dec_ref_map_key_values(m, m_const2bv);
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dec_ref_map_key_values(m, m_rm_const2bv);
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dec_ref_map_key_values(m, m_uf2bvuf);
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for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
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it != m_specials.end();
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it++) {
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m.dec_ref(it->m_key);
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m.dec_ref(it->m_value.first);
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m.dec_ref(it->m_value.second);
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}
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}
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expr_ref bv2fpa_converter::convert_bv2fp(sort * s, expr * sgn, expr * exp, expr * sig) {
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unsynch_mpz_manager & mpzm = m_fpa_util.fm().mpz_manager();
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unsynch_mpq_manager & mpqm = m_fpa_util.fm().mpq_manager();
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expr_ref res(m);
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mpf fp_val;
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unsigned ebits = m_fpa_util.get_ebits(s);
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unsigned sbits = m_fpa_util.get_sbits(s);
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unsigned sgn_sz = 1;
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unsigned exp_sz = ebits;
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unsigned sig_sz = sbits - 1;
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rational sgn_q(0), sig_q(0), exp_q(0);
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if (sgn) m_bv_util.is_numeral(sgn, sgn_q, sgn_sz);
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if (exp) m_bv_util.is_numeral(exp, exp_q, exp_sz);
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if (sig) m_bv_util.is_numeral(sig, sig_q, sig_sz);
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// un-bias exponent
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rational exp_unbiased_q;
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exp_unbiased_q = exp_q - m_fpa_util.fm().m_powers2.m1(ebits - 1);
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mpz sig_z; mpf_exp_t exp_z;
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mpzm.set(sig_z, sig_q.to_mpq().numerator());
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exp_z = mpzm.get_int64(exp_unbiased_q.to_mpq().numerator());
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m_fpa_util.fm().set(fp_val, ebits, sbits, !mpqm.is_zero(sgn_q.to_mpq()), exp_z, sig_z);
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mpzm.del(sig_z);
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res = m_fpa_util.mk_value(fp_val);
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TRACE("bv2fpa", tout << "[" << mk_ismt2_pp(sgn, m) <<
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" " << mk_ismt2_pp(exp, m) <<
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" " << mk_ismt2_pp(sig, m) << "] == " <<
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mk_ismt2_pp(res, m) << std::endl;);
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m_fpa_util.fm().del(fp_val);
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return res;
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}
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expr_ref bv2fpa_converter::convert_bv2fp(model_core * mc, sort * s, app * bv) {
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SASSERT(m_bv_util.is_bv(bv));
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unsigned ebits = m_fpa_util.get_ebits(s);
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unsigned sbits = m_fpa_util.get_sbits(s);
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unsigned bv_sz = sbits + ebits;
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expr_ref bv_num(m);
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if (m_bv_util.is_numeral(bv))
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bv_num = bv;
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else if (!mc->eval(bv->get_decl(), bv_num))
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bv_num = m_bv_util.mk_numeral(0, m_bv_util.get_bv_size(bv));
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expr_ref sgn(m), exp(m), sig(m);
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sgn = m_bv_util.mk_extract(bv_sz - 1, bv_sz - 1, bv_num);
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exp = m_bv_util.mk_extract(bv_sz - 2, sbits - 1, bv_num);
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sig = m_bv_util.mk_extract(sbits - 2, 0, bv_num);
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expr_ref v_sgn(m), v_exp(m), v_sig(m);
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m_th_rw(sgn, v_sgn);
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m_th_rw(exp, v_exp);
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m_th_rw(sig, v_sig);
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return convert_bv2fp(s, v_sgn, v_exp, v_sig);
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}
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expr_ref bv2fpa_converter::convert_bv2rm(expr * bv_rm) {
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expr_ref res(m);
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rational bv_val(0);
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unsigned sz = 0;
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if (m_bv_util.is_numeral(bv_rm, bv_val, sz)) {
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SASSERT(bv_val.is_uint64());
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switch (bv_val.get_uint64()) {
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case BV_RM_TIES_TO_AWAY: res = m_fpa_util.mk_round_nearest_ties_to_away(); break;
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case BV_RM_TIES_TO_EVEN: res = m_fpa_util.mk_round_nearest_ties_to_even(); break;
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case BV_RM_TO_NEGATIVE: res = m_fpa_util.mk_round_toward_negative(); break;
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case BV_RM_TO_POSITIVE: res = m_fpa_util.mk_round_toward_positive(); break;
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case BV_RM_TO_ZERO:
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default: res = m_fpa_util.mk_round_toward_zero();
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}
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}
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return res;
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}
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expr_ref bv2fpa_converter::convert_bv2rm(model_core * mc, app * val) {
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expr_ref res(m);
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if (val) {
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expr_ref eval_v(m);
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if (m_bv_util.is_numeral(val))
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res = convert_bv2rm(val);
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else if (mc->eval(val->get_decl(), eval_v))
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res = convert_bv2rm(eval_v);
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else
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res = m_fpa_util.mk_round_toward_zero();
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}
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return res;
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}
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expr_ref bv2fpa_converter::rebuild_floats(model_core * mc, sort * s, app * e) {
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expr_ref result(m);
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TRACE("bv2fpa", tout << "rebuild floats in " << mk_ismt2_pp(s, m) << " for ";
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if (e) tout << mk_ismt2_pp(e, m);
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else tout << "nil";
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tout << std::endl; );
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if (m_fpa_util.is_float(s)) {
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if (e == 0)
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result = m_fpa_util.mk_pzero(s);
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else if (m_fpa_util.is_numeral(e))
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result = e;
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else {
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SASSERT(m_bv_util.is_bv(e) && m_bv_util.get_bv_size(e) == (m_fpa_util.get_ebits(s) + m_fpa_util.get_sbits(s)));
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result = convert_bv2fp(mc, s, e);
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}
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}
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else if (m_fpa_util.is_rm(s)) {
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if (e == 0)
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result = m_fpa_util.mk_round_toward_zero();
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else if (m_fpa_util.is_rm_numeral(e))
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result = e;
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else {
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SASSERT(m_bv_util.is_bv(e) && m_bv_util.get_bv_size(e) == 3);
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result = convert_bv2rm(mc, e);
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}
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}
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else if (is_app(e)) {
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app * a = to_app(e);
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expr_ref_vector new_args(m);
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for (unsigned i = 0; i < a->get_num_args(); i++)
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new_args.push_back(rebuild_floats(mc, a->get_decl()->get_domain()[i], to_app(a->get_arg(i))));
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result = m.mk_app(a->get_decl(), new_args.size(), new_args.c_ptr());
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}
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return result;
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}
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bv2fpa_converter::array_model bv2fpa_converter::convert_array_func_interp(model_core * mc, func_decl * f, func_decl * bv_f) {
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SASSERT(f->get_arity() == 0);
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array_util arr_util(m);
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array_model am(m);
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sort_ref_vector array_domain(m);
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unsigned arity = f->get_range()->get_num_parameters()-1;
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expr_ref as_arr_mdl(m);
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as_arr_mdl = mc->get_const_interp(bv_f);
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if (as_arr_mdl == 0) return am;
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TRACE("bv2fpa", tout << "arity=0 func_interp for " << mk_ismt2_pp(f, m) << " := " << mk_ismt2_pp(as_arr_mdl, m) << std::endl;);
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SASSERT(arr_util.is_as_array(as_arr_mdl));
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for (unsigned i = 0; i < arity; i++)
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array_domain.push_back(to_sort(f->get_range()->get_parameter(i).get_ast()));
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sort * rng = to_sort(f->get_range()->get_parameter(arity).get_ast());
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bv_f = arr_util.get_as_array_func_decl(to_app(as_arr_mdl));
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am.new_float_fd = m.mk_fresh_func_decl(arity, array_domain.c_ptr(), rng);
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am.new_float_fi = convert_func_interp(mc, am.new_float_fd, bv_f);
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am.bv_fd = bv_f;
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am.result = arr_util.mk_as_array(f->get_range(), am.new_float_fd);
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return am;
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}
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func_interp * bv2fpa_converter::convert_func_interp(model_core * mc, func_decl * f, func_decl * bv_f) {
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SASSERT(f->get_arity() > 0);
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func_interp * result = 0;
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sort * rng = f->get_range();
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sort * const * dmn = f->get_domain();
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unsigned arity = bv_f->get_arity();
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func_interp * bv_fi = mc->get_func_interp(bv_f);
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if (bv_fi != 0) {
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fpa_rewriter rw(m);
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expr_ref ai(m);
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result = alloc(func_interp, m, arity);
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for (unsigned i = 0; i < bv_fi->num_entries(); i++) {
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func_entry const * bv_fe = bv_fi->get_entry(i);
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expr * const * bv_args = bv_fe->get_args();
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expr_ref_buffer new_args(m);
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for (unsigned j = 0; j < arity; j++) {
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sort * ft_dj = dmn[j];
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expr * bv_aj = bv_args[j];
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ai = rebuild_floats(mc, ft_dj, to_app(bv_aj));
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m_th_rw(ai);
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new_args.push_back(ai);
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}
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expr_ref bv_fres(m), ft_fres(m);
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bv_fres = bv_fe->get_result();
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ft_fres = rebuild_floats(mc, rng, to_app(bv_fres));
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m_th_rw(ft_fres);
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result->insert_new_entry(new_args.c_ptr(), ft_fres);
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}
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app_ref bv_els(m);
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expr_ref ft_els(m);
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bv_els = (app*)bv_fi->get_else();
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ft_els = rebuild_floats(mc, rng, bv_els);
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m_th_rw(ft_els);
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result->set_else(ft_els);
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}
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return result;
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}
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void bv2fpa_converter::convert_consts(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen) {
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for (obj_map<func_decl, expr*>::iterator it = m_const2bv.begin();
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it != m_const2bv.end();
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it++)
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{
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func_decl * var = it->m_key;
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app * val = to_app(it->m_value);
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SASSERT(m_fpa_util.is_float(var->get_range()));
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SASSERT(var->get_range()->get_num_parameters() == 2);
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unsigned ebits = m_fpa_util.get_ebits(var->get_range());
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unsigned sbits = m_fpa_util.get_sbits(var->get_range());
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app * a0 = to_app(val->get_arg(0));
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app * a1 = to_app(val->get_arg(1));
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app * a2 = to_app(val->get_arg(2));
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expr_ref v0(m), v1(m), v2(m);
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v0 = mc->get_const_interp(a0->get_decl());
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v1 = mc->get_const_interp(a1->get_decl());
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v2 = mc->get_const_interp(a2->get_decl());
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if (!v0) v0 = m_bv_util.mk_numeral(0, 1);
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if (!v1) v1 = m_bv_util.mk_numeral(0, ebits);
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if (!v2) v2 = m_bv_util.mk_numeral(0, sbits-1);
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expr_ref sgn(m), exp(m), sig(m);
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m_th_rw(v0, sgn);
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m_th_rw(v1, exp);
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m_th_rw(v2, sig);
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SASSERT(val->is_app_of(m_fpa_util.get_family_id(), OP_FPA_FP));
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#ifdef Z3DEBUG
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SASSERT(to_app(val->get_arg(0))->get_decl()->get_arity() == 0);
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SASSERT(to_app(val->get_arg(1))->get_decl()->get_arity() == 0);
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SASSERT(to_app(val->get_arg(2))->get_decl()->get_arity() == 0);
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seen.insert(to_app(val->get_arg(0))->get_decl());
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seen.insert(to_app(val->get_arg(1))->get_decl());
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seen.insert(to_app(val->get_arg(2))->get_decl());
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#else
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SASSERT(a->get_arg(0)->get_kind() == OP_EXTRACT);
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SASSERT(to_app(a->get_arg(0))->get_arg(0)->get_kind() == OP_EXTRACT);
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seen.insert(to_app(to_app(val->get_arg(0))->get_arg(0))->get_decl());
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#endif
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if (!sgn && !sig && !exp)
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continue;
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expr_ref cv(m);
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cv = convert_bv2fp(var->get_range(), sgn, exp, sig);
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target_model->register_decl(var, cv);
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TRACE("bv2fpa", tout << var->get_name() << " == " << mk_ismt2_pp(cv, m) << std::endl;);
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}
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}
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void bv2fpa_converter::convert_rm_consts(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen) {
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for (obj_map<func_decl, expr*>::iterator it = m_rm_const2bv.begin();
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it != m_rm_const2bv.end();
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it++)
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{
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func_decl * var = it->m_key;
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SASSERT(m_fpa_util.is_rm(var->get_range()));
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expr * val = it->m_value;
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SASSERT(m_fpa_util.is_bv2rm(val));
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expr * bvval = to_app(val)->get_arg(0);
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expr_ref fv(m);
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fv = convert_bv2rm(mc, to_app(bvval));
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TRACE("bv2fpa", tout << var->get_name() << " == " << mk_ismt2_pp(fv, m) << ")" << std::endl;);
|
||||
target_model->register_decl(var, fv);
|
||||
seen.insert(to_app(bvval)->get_decl());
|
||||
}
|
||||
}
|
||||
|
||||
void bv2fpa_converter::convert_min_max_specials(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen) {
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
func_decl * f = it->m_key;
|
||||
app * pn_cnst = it->m_value.first;
|
||||
app * np_cnst = it->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());
|
||||
|
||||
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;
|
||||
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);
|
||||
|
||||
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);
|
||||
|
||||
target_model->register_decl(f, flt_fi);
|
||||
TRACE("bv2fpa", tout << "fp.min/fp.max special: " << std::endl <<
|
||||
mk_ismt2_pp(f, m) << " == " << mk_ismt2_pp(flt_fi->get_interp(), m) << std::endl;);
|
||||
}
|
||||
}
|
||||
|
||||
void bv2fpa_converter::convert_uf2bvuf(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen) {
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = m_uf2bvuf.begin();
|
||||
it != m_uf2bvuf.end();
|
||||
it++) {
|
||||
seen.insert(it->m_value);
|
||||
|
||||
func_decl * f = it->m_key;
|
||||
if (f->get_arity() == 0)
|
||||
{
|
||||
array_util au(m);
|
||||
if (au.is_array(f->get_range())) {
|
||||
array_model am = convert_array_func_interp(mc, f, it->m_value);
|
||||
if (am.new_float_fd) target_model->register_decl(am.new_float_fd, am.new_float_fi);
|
||||
if (am.result) target_model->register_decl(f, am.result);
|
||||
if (am.bv_fd) seen.insert(am.bv_fd);
|
||||
}
|
||||
else {
|
||||
// Just keep.
|
||||
SASSERT(!m_fpa_util.is_float(f->get_range()) && !m_fpa_util.is_rm(f->get_range()));
|
||||
expr_ref var(m), val(m);
|
||||
if (mc->eval(it->m_value, val))
|
||||
target_model->register_decl(f, val);
|
||||
}
|
||||
}
|
||||
else {
|
||||
func_interp * fmv = convert_func_interp(mc, f, it->m_value);
|
||||
if (fmv) target_model->register_decl(f, fmv);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void bv2fpa_converter::display(std::ostream & out) {
|
||||
out << "(fpa2bv-model-converter";
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_const2bv.begin();
|
||||
it != m_const2bv.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value, m, indent) << ")";
|
||||
}
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_rm_const2bv.begin();
|
||||
it != m_rm_const2bv.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value, m, indent) << ")";
|
||||
}
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = m_uf2bvuf.begin();
|
||||
it != m_uf2bvuf.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value, m, indent) << ")";
|
||||
}
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value.first, m, indent) << "; " <<
|
||||
mk_ismt2_pp(it->m_value.second, m, indent) << ")";
|
||||
}
|
||||
out << ")";
|
||||
}
|
||||
|
||||
bv2fpa_converter * bv2fpa_converter::translate(ast_translation & translator) {
|
||||
bv2fpa_converter * res = alloc(bv2fpa_converter, translator.to());
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_const2bv.begin();
|
||||
it != m_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
func_decl * k = translator(it->m_key);
|
||||
expr * v = translator(it->m_value);
|
||||
res->m_const2bv.insert(k, v);
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v);
|
||||
}
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_rm_const2bv.begin();
|
||||
it != m_rm_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
func_decl * k = translator(it->m_key);
|
||||
expr * v = translator(it->m_value);
|
||||
res->m_rm_const2bv.insert(k, v);
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v);
|
||||
}
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = m_uf2bvuf.begin();
|
||||
it != m_uf2bvuf.end();
|
||||
it++) {
|
||||
func_decl * k = translator(it->m_key);
|
||||
func_decl * v = translator(it->m_value);
|
||||
res->m_uf2bvuf.insert(k, v);
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v);
|
||||
}
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
func_decl * k = translator(it->m_key);
|
||||
app * v1 = translator(it->m_value.first);
|
||||
app * v2 = translator(it->m_value.second);
|
||||
res->m_specials.insert(k, std::pair<app*, app*>(v1, v2));
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v1);
|
||||
translator.to().inc_ref(v2);
|
||||
}
|
||||
return res;
|
||||
}
|
||||
|
||||
void bv2fpa_converter::convert(model_core * mc, model_core * float_mdl) {
|
||||
TRACE("bv2fpa", tout << "BV Model: " << std::endl;
|
||||
for (unsigned i = 0; i < mc->get_num_constants(); i++)
|
||||
tout << mc->get_constant(i)->get_name() << " --> " <<
|
||||
mk_ismt2_pp(mc->get_const_interp(mc->get_constant(i)), m) << std::endl;
|
||||
for (unsigned i = 0; i < mc->get_num_functions(); i++) {
|
||||
func_decl * f = mc->get_function(i);
|
||||
tout << f->get_name() << "(...) := " << std::endl;
|
||||
func_interp * fi = mc->get_func_interp(f);
|
||||
for (unsigned j = 0; j < fi->num_entries(); j++) {
|
||||
func_entry const * fe = fi->get_entry(j);
|
||||
for (unsigned k = 0; k < f->get_arity(); k++) {
|
||||
tout << mk_ismt2_pp(fe->get_arg(k), m) << " ";
|
||||
}
|
||||
tout << "--> " << mk_ismt2_pp(fe->get_result(), m) << std::endl;
|
||||
}
|
||||
tout << "else " << mk_ismt2_pp(fi->get_else(), m) << std::endl;
|
||||
});
|
||||
|
||||
}
|
||||
74
src/ast/fpa/bv2fpa_converter.h
Normal file
74
src/ast/fpa/bv2fpa_converter.h
Normal file
|
|
@ -0,0 +1,74 @@
|
|||
/*++
|
||||
Copyright (c) 2016 Microsoft Corporation
|
||||
|
||||
Module Name:
|
||||
|
||||
bv2fpa_converter.h
|
||||
|
||||
Abstract:
|
||||
|
||||
Model conversion for fpa2bv_converter
|
||||
|
||||
Author:
|
||||
|
||||
Christoph (cwinter) 2016-10-15
|
||||
|
||||
Notes:
|
||||
|
||||
--*/
|
||||
#ifndef BV2FPA_CONVERTER_H_
|
||||
#define BV2FPA_CONVERTER_H_
|
||||
|
||||
#include"fpa_decl_plugin.h"
|
||||
#include"bv_decl_plugin.h"
|
||||
#include"th_rewriter.h"
|
||||
#include"model_core.h"
|
||||
#include"fpa2bv_converter.h"
|
||||
|
||||
|
||||
class bv2fpa_converter {
|
||||
ast_manager & m;
|
||||
fpa_util m_fpa_util;
|
||||
bv_util m_bv_util;
|
||||
th_rewriter m_th_rw;
|
||||
|
||||
obj_map<func_decl, expr*> m_const2bv;
|
||||
obj_map<func_decl, expr*> m_rm_const2bv;
|
||||
obj_map<func_decl, func_decl*> m_uf2bvuf;
|
||||
obj_map<func_decl, std::pair<app*, app*> > m_specials;
|
||||
|
||||
public:
|
||||
bv2fpa_converter(ast_manager & m);
|
||||
bv2fpa_converter(ast_manager & m, fpa2bv_converter & conv);
|
||||
virtual ~bv2fpa_converter();
|
||||
|
||||
void display(std::ostream & out);
|
||||
bv2fpa_converter * translate(ast_translation & translator);
|
||||
|
||||
expr_ref convert_bv2fp(sort * s, expr * sgn, expr * exp, expr * sig);
|
||||
expr_ref convert_bv2fp(model_core * mc, sort * s, app * bv);
|
||||
expr_ref convert_bv2rm(expr * eval_v);
|
||||
expr_ref convert_bv2rm(model_core * mc, app * val);
|
||||
|
||||
void convert(model_core * mc, model_core * float_mdl);
|
||||
void convert_consts(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen);
|
||||
void convert_rm_consts(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen);
|
||||
void convert_min_max_specials(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen);
|
||||
void convert_uf2bvuf(model_core * mc, model_core * target_model, obj_hashtable<func_decl> & seen);
|
||||
|
||||
func_interp * convert_func_interp(model_core * mc, func_decl * f, func_decl * bv_f);
|
||||
expr_ref rebuild_floats(model_core * mc, sort * s, app * e);
|
||||
|
||||
class array_model {
|
||||
public:
|
||||
func_decl * new_float_fd;
|
||||
func_interp * new_float_fi;
|
||||
func_decl * bv_fd;
|
||||
expr_ref result;
|
||||
array_model(ast_manager & m) : new_float_fd(0), new_float_fi(0), bv_fd(0), result(m) {}
|
||||
};
|
||||
|
||||
array_model convert_array_func_interp(model_core * mc, func_decl * f, func_decl * bv_f);
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
@ -23,6 +23,7 @@ Notes:
|
|||
#include"th_rewriter.h"
|
||||
|
||||
#include"fpa2bv_converter.h"
|
||||
#include"fpa_rewriter.h"
|
||||
|
||||
#define BVULT(X,Y,R) { expr_ref bvult_eq(m), bvult_not(m); m_simp.mk_eq(X, Y, bvult_eq); m_simp.mk_not(bvult_eq, bvult_not); expr_ref t(m); t = m_bv_util.mk_ule(X,Y); m_simp.mk_and(t, bvult_not, R); }
|
||||
|
||||
|
|
@ -32,7 +33,6 @@ fpa2bv_converter::fpa2bv_converter(ast_manager & m) :
|
|||
m_util(m),
|
||||
m_bv_util(m),
|
||||
m_arith_util(m),
|
||||
m_array_util(m),
|
||||
m_dt_util(m),
|
||||
m_seq_util(m),
|
||||
m_mpf_manager(m_util.fm()),
|
||||
|
|
@ -2771,6 +2771,7 @@ void fpa2bv_converter::mk_to_real(func_decl * f, unsigned num, expr * const * ar
|
|||
|
||||
expr_ref unspec(m);
|
||||
unspec = mk_to_real_unspecified(ebits, sbits);
|
||||
|
||||
result = m.mk_ite(x_is_zero, zero, res);
|
||||
result = m.mk_ite(x_is_inf, unspec, result);
|
||||
result = m.mk_ite(x_is_nan, unspec, result);
|
||||
|
|
@ -3073,11 +3074,9 @@ void fpa2bv_converter::mk_to_ieee_bv(func_decl * f, unsigned num, expr * const *
|
|||
m_bv_util.mk_concat(m_bv_util.mk_numeral(0, sbits - 2),
|
||||
m_bv_util.mk_numeral(1, 1))));
|
||||
else {
|
||||
expr_ref unspec_bits(m);
|
||||
unspec_bits = m_util.mk_internal_to_ieee_bv_unspecified(ebits, sbits);
|
||||
nanv = m_bv_util.mk_concat(m_bv_util.mk_extract(sbits-1, sbits-1, unspec_bits),
|
||||
m_bv_util.mk_concat(m_bv_util.mk_numeral(-1, ebits),
|
||||
m_bv_util.mk_extract(sbits-2, 0, unspec_bits)));
|
||||
app_ref unspec(m);
|
||||
unspec = m_util.mk_internal_to_ieee_bv_unspecified(ebits, sbits);
|
||||
mk_to_ieee_bv_unspecified(unspec->get_decl(), 0, 0, nanv);
|
||||
}
|
||||
|
||||
expr_ref sgn_e_s(m);
|
||||
|
|
@ -3155,11 +3154,14 @@ void fpa2bv_converter::mk_to_bv(func_decl * f, unsigned num, expr * const * args
|
|||
|
||||
// NaN, Inf, or negative (except -0) -> unspecified
|
||||
expr_ref c1(m), v1(m);
|
||||
if (!is_signed)
|
||||
if (!is_signed) {
|
||||
c1 = m.mk_or(x_is_nan, x_is_inf, m.mk_and(x_is_neg, m.mk_not(x_is_nzero)));
|
||||
else
|
||||
c1 = m.mk_or(x_is_nan, x_is_inf);
|
||||
v1 = mk_to_ubv_unspecified(ebits, sbits, bv_sz);
|
||||
}
|
||||
else {
|
||||
c1 = m.mk_or(x_is_nan, x_is_inf);
|
||||
v1 = mk_to_sbv_unspecified(ebits, sbits, bv_sz);
|
||||
}
|
||||
dbg_decouple("fpa2bv_to_bv_c1", c1);
|
||||
|
||||
// +-Zero -> 0
|
||||
|
|
@ -3269,7 +3271,8 @@ void fpa2bv_converter::mk_to_bv(func_decl * f, unsigned num, expr * const * args
|
|||
dbg_decouple("fpa2bv_to_bv_rnd", rnd);
|
||||
|
||||
expr_ref unspec(m);
|
||||
unspec = mk_to_ubv_unspecified(ebits, sbits, bv_sz);
|
||||
unspec = is_signed ? mk_to_sbv_unspecified(ebits, sbits, bv_sz) :
|
||||
mk_to_ubv_unspecified(ebits, sbits, bv_sz);
|
||||
result = m.mk_ite(rnd_has_overflown, unspec, rnd);
|
||||
result = m.mk_ite(c_in_limits, result, unspec);
|
||||
result = m.mk_ite(c2, v2, result);
|
||||
|
|
@ -3290,70 +3293,89 @@ void fpa2bv_converter::mk_to_sbv(func_decl * f, unsigned num, expr * const * arg
|
|||
mk_to_bv(f, num, args, true, result);
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_converter::mk_to_ubv_unspecified(unsigned ebits, unsigned sbits, unsigned width) {
|
||||
expr_ref result(m);
|
||||
void fpa2bv_converter::mk_to_ubv_unspecified(func_decl * f, unsigned num, expr * const * args, expr_ref & result) {
|
||||
SASSERT(num == 0);
|
||||
unsigned ebits = f->get_parameter(0).get_int();
|
||||
unsigned sbits = f->get_parameter(1).get_int();
|
||||
unsigned width = m_bv_util.get_bv_size(f->get_range());
|
||||
|
||||
if (m_hi_fp_unspecified)
|
||||
result = m_bv_util.mk_numeral(0, width);
|
||||
else {
|
||||
app_ref unspec(m);
|
||||
unspec = m_util.mk_internal_to_ubv_unspecified(ebits, sbits, width);
|
||||
func_decl * unspec_fd = unspec->get_decl();
|
||||
func_decl * fd;
|
||||
if (!m_uf2bvuf.find(unspec_fd, fd)) {
|
||||
app_ref bvc(m);
|
||||
bvc = m.mk_fresh_const(0, unspec_fd->get_range());
|
||||
fd = bvc->get_decl();
|
||||
m_uf2bvuf.insert(unspec_fd, fd);
|
||||
m.inc_ref(unspec_fd);
|
||||
if (!m_uf2bvuf.find(f, fd)) {
|
||||
fd = m.mk_fresh_func_decl(0, 0, 0, f->get_range());
|
||||
m_uf2bvuf.insert(f, fd);
|
||||
m.inc_ref(f);
|
||||
m.inc_ref(fd);
|
||||
}
|
||||
result = m.mk_const(fd);
|
||||
}
|
||||
return result;
|
||||
|
||||
TRACE("fpa2bv_to_ubv_unspecified", tout << "result=" << mk_ismt2_pp(result, m) << std::endl;);
|
||||
SASSERT(is_well_sorted(m, result));
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_converter::mk_to_ubv_unspecified(unsigned ebits, unsigned sbits, unsigned width) {
|
||||
expr_ref res(m);
|
||||
app_ref u(m);
|
||||
u = m_util.mk_internal_to_ubv_unspecified(ebits, sbits, width);
|
||||
mk_to_sbv_unspecified(u->get_decl(), 0, 0, res);
|
||||
return res;
|
||||
}
|
||||
|
||||
void fpa2bv_converter::mk_to_sbv_unspecified(func_decl * f, unsigned num, expr * const * args, expr_ref & result) {
|
||||
SASSERT(num == 0);
|
||||
unsigned ebits = f->get_parameter(0).get_int();
|
||||
unsigned sbits = f->get_parameter(1).get_int();
|
||||
unsigned width = m_bv_util.get_bv_size(f->get_range());
|
||||
|
||||
if (m_hi_fp_unspecified)
|
||||
result = m_bv_util.mk_numeral(0, width);
|
||||
else {
|
||||
func_decl * fd;
|
||||
if (!m_uf2bvuf.find(f, fd)) {
|
||||
fd = m.mk_fresh_func_decl(0, 0, 0, f->get_range());
|
||||
m_uf2bvuf.insert(f, fd);
|
||||
m.inc_ref(f);
|
||||
m.inc_ref(fd);
|
||||
}
|
||||
result = m.mk_const(fd);
|
||||
}
|
||||
|
||||
TRACE("fpa2bv_to_sbv_unspecified", tout << "result=" << mk_ismt2_pp(result, m) << std::endl;);
|
||||
SASSERT(is_well_sorted(m, result));
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_converter::mk_to_sbv_unspecified(unsigned ebits, unsigned sbits, unsigned width) {
|
||||
expr_ref result(m);
|
||||
if (m_hi_fp_unspecified)
|
||||
result = m_bv_util.mk_numeral(0, width);
|
||||
else {
|
||||
app_ref unspec(m);
|
||||
unspec = m_util.mk_internal_to_sbv_unspecified(ebits, sbits, width);
|
||||
func_decl * unspec_fd = unspec->get_decl();
|
||||
func_decl * fd;
|
||||
if (!m_uf2bvuf.find(unspec_fd, fd)) {
|
||||
app_ref bvc(m);
|
||||
bvc = m.mk_fresh_const(0, unspec_fd->get_range());
|
||||
fd = bvc->get_decl();
|
||||
m_uf2bvuf.insert(unspec_fd, fd);
|
||||
m.inc_ref(unspec_fd);
|
||||
m.inc_ref(fd);
|
||||
}
|
||||
result = m.mk_const(fd);
|
||||
}
|
||||
return result;
|
||||
expr_ref res(m);
|
||||
app_ref u(m);
|
||||
u = m_util.mk_internal_to_sbv_unspecified(ebits, sbits, width);
|
||||
mk_to_sbv_unspecified(u->get_decl(), 0, 0, res);
|
||||
return res;
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_converter::mk_to_real_unspecified(unsigned ebits, unsigned sbits) {
|
||||
expr_ref result(m);
|
||||
void fpa2bv_converter::mk_to_real_unspecified(func_decl * f, unsigned num, expr * const * args, expr_ref & result) {
|
||||
if (m_hi_fp_unspecified)
|
||||
result = m_arith_util.mk_numeral(rational(0), false);
|
||||
else {
|
||||
app_ref unspec(m);
|
||||
unspec = m_util.mk_internal_to_real_unspecified(ebits, sbits);
|
||||
func_decl * unspec_fd = unspec->get_decl();
|
||||
func_decl * fd;
|
||||
if (!m_uf2bvuf.find(unspec_fd, fd)) {
|
||||
app_ref bvc(m);
|
||||
bvc = m.mk_fresh_const(0, unspec_fd->get_range());
|
||||
fd = bvc->get_decl();
|
||||
m_uf2bvuf.insert(unspec_fd, fd);
|
||||
m.inc_ref(unspec_fd);
|
||||
if (!m_uf2bvuf.find(f, fd)) {
|
||||
fd = m.mk_fresh_func_decl(0, 0, 0, f->get_range());
|
||||
m_uf2bvuf.insert(f, fd);
|
||||
m.inc_ref(f);
|
||||
m.inc_ref(fd);
|
||||
}
|
||||
result = m.mk_const(fd);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_converter::mk_to_real_unspecified(unsigned ebits, unsigned sbits) {
|
||||
expr_ref res(m);
|
||||
app_ref u(m);
|
||||
u = m_util.mk_internal_to_real_unspecified(ebits, sbits);
|
||||
mk_to_real_unspecified(u->get_decl(), 0, 0, res);
|
||||
return res;
|
||||
}
|
||||
|
||||
void fpa2bv_converter::mk_fp(func_decl * f, unsigned num, expr * const * args, expr_ref & result) {
|
||||
|
|
|
|||
|
|
@ -43,7 +43,6 @@ protected:
|
|||
fpa_util m_util;
|
||||
bv_util m_bv_util;
|
||||
arith_util m_arith_util;
|
||||
array_util m_array_util;
|
||||
datatype_util m_dt_util;
|
||||
seq_util m_seq_util;
|
||||
mpf_manager & m_mpf_manager;
|
||||
|
|
@ -57,6 +56,7 @@ protected:
|
|||
special_t m_min_max_specials;
|
||||
|
||||
friend class fpa2bv_model_converter;
|
||||
friend class bv2fpa_converter;
|
||||
|
||||
public:
|
||||
fpa2bv_converter(ast_manager & m);
|
||||
|
|
@ -138,8 +138,11 @@ public:
|
|||
void mk_to_fp_real_int(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
|
||||
void mk_to_ubv(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
void mk_to_ubv_unspecified(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
void mk_to_sbv(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
void mk_to_sbv_unspecified(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
void mk_to_real(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
void mk_to_real_unspecified(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
|
||||
void set_unspecified_fp_hi(bool v) { m_hi_fp_unspecified = v; }
|
||||
|
||||
|
|
@ -150,10 +153,6 @@ public:
|
|||
void mk_max(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
void mk_max_i(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
|
||||
|
||||
expr_ref mk_to_ubv_unspecified(unsigned ebits, unsigned sbits, unsigned width);
|
||||
expr_ref mk_to_sbv_unspecified(unsigned ebits, unsigned sbits, unsigned width);
|
||||
expr_ref mk_to_real_unspecified(unsigned ebits, unsigned sbits);
|
||||
|
||||
void reset(void);
|
||||
|
||||
void dbg_decouple(const char * prefix, expr_ref & e);
|
||||
|
|
@ -227,6 +226,10 @@ private:
|
|||
void mk_round_to_integral(sort * s, expr_ref & rm, expr_ref & x, expr_ref & result);
|
||||
|
||||
void mk_to_fp_float(sort * s, expr * rm, expr * x, expr_ref & result);
|
||||
|
||||
expr_ref mk_to_ubv_unspecified(unsigned ebits, unsigned sbits, unsigned width);
|
||||
expr_ref mk_to_sbv_unspecified(unsigned ebits, unsigned sbits, unsigned width);
|
||||
expr_ref mk_to_real_unspecified(unsigned ebits, unsigned sbits);
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -143,9 +143,12 @@ br_status fpa2bv_rewriter_cfg::reduce_app(func_decl * f, unsigned num, expr * co
|
|||
case OP_FPA_TO_FP_UNSIGNED: m_conv.mk_to_fp_unsigned(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_FP: m_conv.mk_fp(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_TO_UBV: m_conv.mk_to_ubv(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_INTERNAL_TO_UBV_UNSPECIFIED: m_conv.mk_to_ubv_unspecified(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_TO_SBV: m_conv.mk_to_sbv(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_INTERNAL_TO_SBV_UNSPECIFIED: m_conv.mk_to_sbv_unspecified(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_TO_REAL: m_conv.mk_to_real(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_TO_IEEE_BV: m_conv.mk_to_ieee_bv(f, num, args, result); return BR_REWRITE_FULL;
|
||||
case OP_FPA_INTERNAL_TO_REAL_UNSPECIFIED: m_conv.mk_to_real_unspecified(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_TO_IEEE_BV: m_conv.mk_to_ieee_bv(f, num, args, result); return BR_DONE;
|
||||
case OP_FPA_INTERNAL_TO_IEEE_BV_UNSPECIFIED: m_conv.mk_to_ieee_bv_unspecified(f, num, args, result); return BR_DONE;
|
||||
|
||||
case OP_FPA_MIN: m_conv.mk_min(f, num, args, result); return BR_REWRITE_FULL;
|
||||
|
|
@ -158,11 +161,8 @@ br_status fpa2bv_rewriter_cfg::reduce_app(func_decl * f, unsigned num, expr * co
|
|||
|
||||
case OP_FPA_INTERNAL_BVWRAP:
|
||||
case OP_FPA_INTERNAL_BV2RM:
|
||||
|
||||
case OP_FPA_INTERNAL_TO_REAL_UNSPECIFIED:
|
||||
case OP_FPA_INTERNAL_TO_UBV_UNSPECIFIED:
|
||||
case OP_FPA_INTERNAL_TO_SBV_UNSPECIFIED:
|
||||
return BR_FAILED;
|
||||
|
||||
default:
|
||||
TRACE("fpa2bv", tout << "unsupported operator: " << f->get_name() << "\n";
|
||||
for (unsigned i = 0; i < num; i++) tout << mk_ismt2_pp(args[i], m()) << std::endl;);
|
||||
|
|
|
|||
|
|
@ -21,6 +21,7 @@ Revision History:
|
|||
#include"theory_fpa.h"
|
||||
#include"theory_bv.h"
|
||||
#include"smt_model_generator.h"
|
||||
#include"bv2fpa_converter.h"
|
||||
|
||||
namespace smt {
|
||||
|
||||
|
|
@ -712,20 +713,6 @@ namespace smt {
|
|||
ast_manager & m = get_manager();
|
||||
m_factory = alloc(fpa_value_factory, m, get_family_id());
|
||||
mg.register_factory(m_factory);
|
||||
|
||||
fpa2bv_converter::uf2bvuf_t const & uf2bvuf = m_converter.get_uf2bvuf();
|
||||
for (fpa2bv_converter::uf2bvuf_t::iterator it = uf2bvuf.begin();
|
||||
it != uf2bvuf.end();
|
||||
it++) {
|
||||
//mg.hide(it->m_value);
|
||||
}
|
||||
fpa2bv_converter::special_t const & specials = m_converter.get_min_max_specials();
|
||||
for (fpa2bv_converter::special_t::iterator it = specials.begin();
|
||||
it != specials.end();
|
||||
it++) {
|
||||
mg.hide(it->m_value.first->get_decl());
|
||||
mg.hide(it->m_value.second->get_decl());
|
||||
}
|
||||
}
|
||||
|
||||
model_value_proc * theory_fpa::mk_value(enode * n, model_generator & mg) {
|
||||
|
|
@ -814,20 +801,28 @@ namespace smt {
|
|||
void theory_fpa::finalize_model(model_generator & mg) {
|
||||
ast_manager & m = get_manager();
|
||||
proto_model & mdl = mg.get_model();
|
||||
proto_model new_model(m);
|
||||
|
||||
fpa2bv_converter::uf2bvuf_t const & uf2bvuf = m_converter.get_uf2bvuf();
|
||||
for (fpa2bv_converter::uf2bvuf_t::iterator it = uf2bvuf.begin();
|
||||
it != uf2bvuf.end();
|
||||
it++) {
|
||||
func_decl * bv_fd = it->m_value;
|
||||
if (bv_fd->get_arity() == 0) {
|
||||
expr_ref bve(m), v(m);
|
||||
bve = m.mk_const(bv_fd);
|
||||
mdl.eval(bve, v, true);
|
||||
mdl.register_decl(it->m_key, v);
|
||||
bv2fpa_converter bv2fp(m, m_converter);
|
||||
|
||||
obj_hashtable<func_decl> seen;
|
||||
bv2fp.convert_min_max_specials(&mdl, &new_model, seen);
|
||||
bv2fp.convert_uf2bvuf(&mdl, &new_model, seen);
|
||||
|
||||
for (obj_hashtable<func_decl>::iterator it = seen.begin();
|
||||
it != seen.end();
|
||||
it++)
|
||||
mdl.unregister_decl(*it);
|
||||
|
||||
for (unsigned i = 0; i < new_model.get_num_constants(); i++) {
|
||||
func_decl * f = new_model.get_constant(i);
|
||||
mdl.register_decl(f, new_model.get_const_interp(f));
|
||||
}
|
||||
else
|
||||
NOT_IMPLEMENTED_YET();
|
||||
|
||||
for (unsigned i = 0; i < new_model.get_num_functions(); i++) {
|
||||
func_decl * f = new_model.get_function(i);
|
||||
func_interp * fi = new_model.get_func_interp(f)->copy();
|
||||
mdl.register_decl(f, fi);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -22,448 +22,54 @@ Notes:
|
|||
|
||||
void fpa2bv_model_converter::display(std::ostream & out) {
|
||||
out << "(fpa2bv-model-converter";
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_const2bv.begin();
|
||||
it != m_const2bv.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value, m, indent) << ")";
|
||||
}
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_rm_const2bv.begin();
|
||||
it != m_rm_const2bv.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value, m, indent) << ")";
|
||||
}
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = m_uf2bvuf.begin();
|
||||
it != m_uf2bvuf.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value, m, indent) << ")";
|
||||
}
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
const symbol & n = it->m_key->get_name();
|
||||
out << "\n (" << n << " ";
|
||||
unsigned indent = n.size() + 4;
|
||||
out << mk_ismt2_pp(it->m_value.first, m, indent) << "; " <<
|
||||
mk_ismt2_pp(it->m_value.second, m, indent) << ")";
|
||||
}
|
||||
m_bv2fp->display(out);
|
||||
out << ")";
|
||||
}
|
||||
|
||||
model_converter * fpa2bv_model_converter::translate(ast_translation & translator) {
|
||||
fpa2bv_model_converter * res = alloc(fpa2bv_model_converter, translator.to());
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_const2bv.begin();
|
||||
it != m_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
func_decl * k = translator(it->m_key);
|
||||
expr * v = translator(it->m_value);
|
||||
res->m_const2bv.insert(k, v);
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v);
|
||||
}
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_rm_const2bv.begin();
|
||||
it != m_rm_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
func_decl * k = translator(it->m_key);
|
||||
expr * v = translator(it->m_value);
|
||||
res->m_rm_const2bv.insert(k, v);
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v);
|
||||
}
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = m_uf2bvuf.begin();
|
||||
it != m_uf2bvuf.end();
|
||||
it++) {
|
||||
func_decl * k = translator(it->m_key);
|
||||
func_decl * v = translator(it->m_value);
|
||||
res->m_uf2bvuf.insert(k, v);
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v);
|
||||
}
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
func_decl * k = translator(it->m_key);
|
||||
app * v1 = translator(it->m_value.first);
|
||||
app * v2 = translator(it->m_value.second);
|
||||
res->m_specials.insert(k, std::pair<app*, app*>(v1, v2));
|
||||
translator.to().inc_ref(k);
|
||||
translator.to().inc_ref(v1);
|
||||
translator.to().inc_ref(v2);
|
||||
}
|
||||
res->m_bv2fp = m_bv2fp->translate(translator);
|
||||
return res;
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_model_converter::convert_bv2fp(sort * s, expr * sgn, expr * exp, expr * sig) {
|
||||
unsynch_mpz_manager & mpzm = m_fpa_util.fm().mpz_manager();
|
||||
unsynch_mpq_manager & mpqm = m_fpa_util.fm().mpq_manager();
|
||||
|
||||
expr_ref res(m);
|
||||
mpf fp_val;
|
||||
|
||||
unsigned ebits = m_fpa_util.get_ebits(s);
|
||||
unsigned sbits = m_fpa_util.get_sbits(s);
|
||||
|
||||
unsigned sgn_sz = 1;
|
||||
unsigned exp_sz = ebits;
|
||||
unsigned sig_sz = sbits - 1;
|
||||
|
||||
rational sgn_q(0), sig_q(0), exp_q(0);
|
||||
|
||||
if (sgn) m_bv_util.is_numeral(sgn, sgn_q, sgn_sz);
|
||||
if (exp) m_bv_util.is_numeral(exp, exp_q, exp_sz);
|
||||
if (sig) m_bv_util.is_numeral(sig, sig_q, sig_sz);
|
||||
|
||||
// un-bias exponent
|
||||
rational exp_unbiased_q;
|
||||
exp_unbiased_q = exp_q - m_fpa_util.fm().m_powers2.m1(ebits - 1);
|
||||
|
||||
mpz sig_z; mpf_exp_t exp_z;
|
||||
mpzm.set(sig_z, sig_q.to_mpq().numerator());
|
||||
exp_z = mpzm.get_int64(exp_unbiased_q.to_mpq().numerator());
|
||||
|
||||
m_fpa_util.fm().set(fp_val, ebits, sbits, !mpqm.is_zero(sgn_q.to_mpq()), exp_z, sig_z);
|
||||
|
||||
mpzm.del(sig_z);
|
||||
|
||||
res = m_fpa_util.mk_value(fp_val);
|
||||
|
||||
TRACE("fpa2bv_mc", tout << "[" << mk_ismt2_pp(sgn, m) <<
|
||||
" " << mk_ismt2_pp(exp, m) <<
|
||||
" " << mk_ismt2_pp(sig, m) << "] == " <<
|
||||
mk_ismt2_pp(res, m) << std::endl;);
|
||||
m_fpa_util.fm().del(fp_val);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_model_converter::convert_bv2fp(model * bv_mdl, sort * s, expr * bv) {
|
||||
SASSERT(m_bv_util.is_bv(bv));
|
||||
|
||||
unsigned ebits = m_fpa_util.get_ebits(s);
|
||||
unsigned sbits = m_fpa_util.get_sbits(s);
|
||||
unsigned bv_sz = sbits + ebits;
|
||||
|
||||
expr_ref sgn(m), exp(m), sig(m);
|
||||
sgn = m_bv_util.mk_extract(bv_sz - 1, bv_sz - 1, bv);
|
||||
exp = m_bv_util.mk_extract(bv_sz - 2, sbits - 1, bv);
|
||||
sig = m_bv_util.mk_extract(sbits - 2, 0, bv);
|
||||
|
||||
expr_ref v_sgn(m), v_exp(m), v_sig(m);
|
||||
bv_mdl->eval(sgn, v_sgn);
|
||||
bv_mdl->eval(exp, v_exp);
|
||||
bv_mdl->eval(sig, v_sig);
|
||||
|
||||
return convert_bv2fp(s, v_sgn, v_exp, v_sig);
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_model_converter::convert_bv2rm(expr * bv_rm) {
|
||||
expr_ref res(m);
|
||||
rational bv_val(0);
|
||||
unsigned sz = 0;
|
||||
|
||||
if (m_bv_util.is_numeral(bv_rm, bv_val, sz)) {
|
||||
SASSERT(bv_val.is_uint64());
|
||||
switch (bv_val.get_uint64()) {
|
||||
case BV_RM_TIES_TO_AWAY: res = m_fpa_util.mk_round_nearest_ties_to_away(); break;
|
||||
case BV_RM_TIES_TO_EVEN: res = m_fpa_util.mk_round_nearest_ties_to_even(); break;
|
||||
case BV_RM_TO_NEGATIVE: res = m_fpa_util.mk_round_toward_negative(); break;
|
||||
case BV_RM_TO_POSITIVE: res = m_fpa_util.mk_round_toward_positive(); break;
|
||||
case BV_RM_TO_ZERO:
|
||||
default: res = m_fpa_util.mk_round_toward_zero();
|
||||
}
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_model_converter::convert_bv2rm(model * bv_mdl, expr * val) {
|
||||
expr_ref res(m);
|
||||
expr_ref eval_v(m);
|
||||
|
||||
if (val && bv_mdl->eval(val, eval_v, true))
|
||||
res = convert_bv2rm(eval_v);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
expr_ref fpa2bv_model_converter::rebuild_floats(model * bv_mdl, sort * s, expr * e) {
|
||||
expr_ref result(m);
|
||||
TRACE("fpa2bv_mc", tout << "rebuild floats in " << mk_ismt2_pp(s, m) << " for " << mk_ismt2_pp(e, m) << std::endl;);
|
||||
|
||||
if (m_fpa_util.is_float(s)) {
|
||||
if (m_fpa_util.is_numeral(e)) {
|
||||
result = e;
|
||||
}
|
||||
else {
|
||||
SASSERT(m_bv_util.is_bv(e) && m_bv_util.get_bv_size(e) == (m_fpa_util.get_ebits(s) + m_fpa_util.get_sbits(s)));
|
||||
result = convert_bv2fp(bv_mdl, s, e);
|
||||
}
|
||||
}
|
||||
else if (m_fpa_util.is_rm(s)) {
|
||||
if (m_fpa_util.is_rm_numeral(e)) {
|
||||
result = e;
|
||||
}
|
||||
else {
|
||||
SASSERT(m_bv_util.is_bv(e) && m_bv_util.get_bv_size(e) == 3);
|
||||
result = convert_bv2rm(bv_mdl, e);
|
||||
}
|
||||
}
|
||||
else if (is_app(e)) {
|
||||
app * a = to_app(e);
|
||||
expr_ref_vector new_args(m);
|
||||
for (unsigned i = 0; i < a->get_num_args(); i++)
|
||||
new_args.push_back(rebuild_floats(bv_mdl, a->get_decl()->get_domain()[i], a->get_arg(i)));
|
||||
result = m.mk_app(a->get_decl(), new_args.size(), new_args.c_ptr());
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
fpa2bv_model_converter::array_model fpa2bv_model_converter::convert_array_func_interp(func_decl * f, func_decl * bv_f, model * bv_mdl) {
|
||||
SASSERT(f->get_arity() == 0);
|
||||
array_util arr_util(m);
|
||||
|
||||
array_model am(m);
|
||||
sort_ref_vector array_domain(m);
|
||||
unsigned arity = f->get_range()->get_num_parameters()-1;
|
||||
|
||||
expr_ref as_arr_mdl(m);
|
||||
as_arr_mdl = bv_mdl->get_const_interp(bv_f);
|
||||
if (as_arr_mdl == 0) return am;
|
||||
TRACE("fpa2bv_mc", tout << "arity=0 func_interp for " << mk_ismt2_pp(f, m) << " := " << mk_ismt2_pp(as_arr_mdl, m) << std::endl;);
|
||||
SASSERT(arr_util.is_as_array(as_arr_mdl));
|
||||
for (unsigned i = 0; i < arity; i++)
|
||||
array_domain.push_back(to_sort(f->get_range()->get_parameter(i).get_ast()));
|
||||
sort * rng = to_sort(f->get_range()->get_parameter(arity).get_ast());
|
||||
|
||||
bv_f = arr_util.get_as_array_func_decl(to_app(as_arr_mdl));
|
||||
|
||||
am.new_float_fd = m.mk_fresh_func_decl(arity, array_domain.c_ptr(), rng);
|
||||
am.new_float_fi = convert_func_interp(am.new_float_fd, bv_f, bv_mdl);
|
||||
am.bv_fd = bv_f;
|
||||
am.result = arr_util.mk_as_array(f->get_range(), am.new_float_fd);
|
||||
return am;
|
||||
}
|
||||
|
||||
func_interp * fpa2bv_model_converter::convert_func_interp(func_decl * f, func_decl * bv_f, model * bv_mdl) {
|
||||
SASSERT(f->get_arity() > 0);
|
||||
func_interp * result = 0;
|
||||
sort * rng = f->get_range();
|
||||
sort * const * dmn = f->get_domain();
|
||||
|
||||
unsigned arity = bv_f->get_arity();
|
||||
func_interp * bv_fi = bv_mdl->get_func_interp(bv_f);
|
||||
|
||||
if (bv_fi != 0) {
|
||||
fpa_rewriter rw(m);
|
||||
expr_ref ai(m);
|
||||
result = alloc(func_interp, m, arity);
|
||||
|
||||
for (unsigned i = 0; i < bv_fi->num_entries(); i++) {
|
||||
func_entry const * bv_fe = bv_fi->get_entry(i);
|
||||
expr * const * bv_args = bv_fe->get_args();
|
||||
expr_ref_buffer new_args(m);
|
||||
|
||||
for (unsigned j = 0; j < arity; j++) {
|
||||
sort * ft_dj = dmn[j];
|
||||
expr * bv_aj = bv_args[j];
|
||||
ai = rebuild_floats(bv_mdl, ft_dj, bv_aj);
|
||||
m_th_rw(ai);
|
||||
new_args.push_back(ai);
|
||||
}
|
||||
|
||||
expr_ref bv_fres(m), ft_fres(m);
|
||||
bv_fres = bv_fe->get_result();
|
||||
ft_fres = rebuild_floats(bv_mdl, rng, bv_fres);
|
||||
m_th_rw(ft_fres);
|
||||
result->insert_new_entry(new_args.c_ptr(), ft_fres);
|
||||
}
|
||||
|
||||
expr_ref bv_els(m), ft_els(m);
|
||||
bv_els = bv_fi->get_else();
|
||||
ft_els = rebuild_floats(bv_mdl, rng, bv_els);
|
||||
m_th_rw(ft_els);
|
||||
result->set_else(ft_els);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
void fpa2bv_model_converter::convert(model * bv_mdl, model * float_mdl) {
|
||||
TRACE("fpa2bv_mc", tout << "BV Model: " << std::endl;
|
||||
for (unsigned i = 0; i < bv_mdl->get_num_constants(); i++)
|
||||
tout << bv_mdl->get_constant(i)->get_name() << " --> " <<
|
||||
mk_ismt2_pp(bv_mdl->get_const_interp(bv_mdl->get_constant(i)), m) << std::endl;
|
||||
for (unsigned i = 0; i < bv_mdl->get_num_functions(); i++) {
|
||||
func_decl * f = bv_mdl->get_function(i);
|
||||
tout << f->get_name() << "(...) := " << std::endl;
|
||||
func_interp * fi = bv_mdl->get_func_interp(f);
|
||||
for (unsigned j = 0; j < fi->num_entries(); j++) {
|
||||
func_entry const * fe = fi->get_entry(j);
|
||||
for (unsigned k = 0; k < f->get_arity(); k++) {
|
||||
tout << mk_ismt2_pp(fe->get_arg(k), m) << " ";
|
||||
}
|
||||
tout << "--> " << mk_ismt2_pp(fe->get_result(), m) << std::endl;
|
||||
}
|
||||
tout << "else " << mk_ismt2_pp(fi->get_else(), m) << std::endl;
|
||||
});
|
||||
|
||||
void fpa2bv_model_converter::convert(model_core * mc, model * float_mdl) {
|
||||
obj_hashtable<func_decl> seen;
|
||||
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
func_decl * f = it->m_key;
|
||||
expr_ref pzero(m), nzero(m);
|
||||
pzero = m_fpa_util.mk_pzero(f->get_range());
|
||||
nzero = m_fpa_util.mk_nzero(f->get_range());
|
||||
|
||||
expr_ref pn(m), np(m);
|
||||
bv_mdl->eval(it->m_value.first, pn, true);
|
||||
bv_mdl->eval(it->m_value.second, np, true);
|
||||
seen.insert(it->m_value.first->get_decl());
|
||||
seen.insert(it->m_value.second->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);
|
||||
|
||||
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);
|
||||
|
||||
float_mdl->register_decl(f, flt_fi);
|
||||
TRACE("fpa2bv_mc", tout << "fp.min/fp.max special: " << std::endl <<
|
||||
mk_ismt2_pp(f, m) << " == " << mk_ismt2_pp(flt_fi->get_interp(), m) << std::endl;);
|
||||
}
|
||||
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_const2bv.begin();
|
||||
it != m_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
func_decl * var = it->m_key;
|
||||
app * val = to_app(it->m_value);
|
||||
SASSERT(m_fpa_util.is_float(var->get_range()));
|
||||
SASSERT(var->get_range()->get_num_parameters() == 2);
|
||||
|
||||
expr_ref sgn(m), sig(m), exp(m);
|
||||
bv_mdl->eval(val->get_arg(0), sgn, true);
|
||||
bv_mdl->eval(val->get_arg(1), exp, true);
|
||||
bv_mdl->eval(val->get_arg(2), sig, true);
|
||||
|
||||
SASSERT(val->is_app_of(m_fpa_util.get_family_id(), OP_FPA_FP));
|
||||
|
||||
#ifdef Z3DEBUG
|
||||
SASSERT(to_app(val->get_arg(0))->get_decl()->get_arity() == 0);
|
||||
SASSERT(to_app(val->get_arg(1))->get_decl()->get_arity() == 0);
|
||||
SASSERT(to_app(val->get_arg(2))->get_decl()->get_arity() == 0);
|
||||
seen.insert(to_app(val->get_arg(0))->get_decl());
|
||||
seen.insert(to_app(val->get_arg(1))->get_decl());
|
||||
seen.insert(to_app(val->get_arg(2))->get_decl());
|
||||
#else
|
||||
SASSERT(a->get_arg(0)->get_kind() == OP_EXTRACT);
|
||||
SASSERT(to_app(a->get_arg(0))->get_arg(0)->get_kind() == OP_EXTRACT);
|
||||
seen.insert(to_app(to_app(val->get_arg(0))->get_arg(0))->get_decl());
|
||||
#endif
|
||||
|
||||
if (!sgn && !sig && !exp)
|
||||
continue;
|
||||
|
||||
expr_ref cv(m);
|
||||
cv = convert_bv2fp(var->get_range(), sgn, exp, sig);
|
||||
float_mdl->register_decl(var, cv);
|
||||
|
||||
TRACE("fpa2bv_mc", tout << var->get_name() << " == " << mk_ismt2_pp(cv, m) << std::endl;);
|
||||
}
|
||||
|
||||
for (obj_map<func_decl, expr*>::iterator it = m_rm_const2bv.begin();
|
||||
it != m_rm_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
func_decl * var = it->m_key;
|
||||
SASSERT(m_fpa_util.is_rm(var->get_range()));
|
||||
expr * val = it->m_value;
|
||||
SASSERT(m_fpa_util.is_bv2rm(val));
|
||||
expr * bvval = to_app(val)->get_arg(0);
|
||||
expr_ref fv(m);
|
||||
fv = convert_bv2rm(bv_mdl, bvval);
|
||||
TRACE("fpa2bv_mc", tout << var->get_name() << " == " << mk_ismt2_pp(fv, m) << ")" << std::endl;);
|
||||
float_mdl->register_decl(var, fv);
|
||||
seen.insert(to_app(bvval)->get_decl());
|
||||
}
|
||||
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = m_uf2bvuf.begin();
|
||||
it != m_uf2bvuf.end();
|
||||
it++) {
|
||||
seen.insert(it->m_value);
|
||||
|
||||
func_decl * f = it->m_key;
|
||||
if (f->get_arity() == 0)
|
||||
{
|
||||
array_util au(m);
|
||||
if (au.is_array(f->get_range())) {
|
||||
array_model am = convert_array_func_interp(f, it->m_value, bv_mdl);
|
||||
if (am.new_float_fd) float_mdl->register_decl(am.new_float_fd, am.new_float_fi);
|
||||
if (am.result) float_mdl->register_decl(f, am.result);
|
||||
if (am.bv_fd) seen.insert(am.bv_fd);
|
||||
}
|
||||
else {
|
||||
// Just keep.
|
||||
SASSERT(!m_fpa_util.is_float(f->get_range()) && !m_fpa_util.is_rm(f->get_range()));
|
||||
expr_ref val(m);
|
||||
bv_mdl->eval(it->m_value, val);
|
||||
if (val) float_mdl->register_decl(f, val);
|
||||
}
|
||||
}
|
||||
else {
|
||||
func_interp * fmv = convert_func_interp(f, it->m_value, bv_mdl);
|
||||
if (fmv) float_mdl->register_decl(f, fmv);
|
||||
}
|
||||
}
|
||||
m_bv2fp->convert_consts(mc, float_mdl, seen);
|
||||
m_bv2fp->convert_rm_consts(mc, float_mdl, seen);
|
||||
m_bv2fp->convert_min_max_specials(mc, float_mdl, seen);
|
||||
m_bv2fp->convert_uf2bvuf(mc, float_mdl, seen);
|
||||
|
||||
// Keep all the non-float constants.
|
||||
unsigned sz = bv_mdl->get_num_constants();
|
||||
unsigned sz = mc->get_num_constants();
|
||||
for (unsigned i = 0; i < sz; i++)
|
||||
{
|
||||
func_decl * c = bv_mdl->get_constant(i);
|
||||
func_decl * c = mc->get_constant(i);
|
||||
if (!seen.contains(c))
|
||||
float_mdl->register_decl(c, bv_mdl->get_const_interp(c));
|
||||
float_mdl->register_decl(c, mc->get_const_interp(c));
|
||||
}
|
||||
|
||||
// And keep everything else
|
||||
sz = bv_mdl->get_num_functions();
|
||||
sz = mc->get_num_functions();
|
||||
for (unsigned i = 0; i < sz; i++)
|
||||
{
|
||||
func_decl * f = bv_mdl->get_function(i);
|
||||
func_decl * f = mc->get_function(i);
|
||||
if (!seen.contains(f))
|
||||
{
|
||||
TRACE("fpa2bv_mc", tout << "Keeping: " << mk_ismt2_pp(f, m) << std::endl;);
|
||||
func_interp * val = bv_mdl->get_func_interp(f)->copy();
|
||||
func_interp * val = mc->get_func_interp(f)->copy();
|
||||
float_mdl->register_decl(f, val);
|
||||
}
|
||||
}
|
||||
|
||||
sz = bv_mdl->get_num_uninterpreted_sorts();
|
||||
sz = mc->get_num_uninterpreted_sorts();
|
||||
for (unsigned i = 0; i < sz; i++)
|
||||
{
|
||||
sort * s = bv_mdl->get_uninterpreted_sort(i);
|
||||
ptr_vector<expr> u = bv_mdl->get_universe(s);
|
||||
sort * s = mc->get_uninterpreted_sort(i);
|
||||
ptr_vector<expr> u = mc->get_universe(s);
|
||||
float_mdl->register_usort(s, u.size(), u.c_ptr());
|
||||
}
|
||||
}
|
||||
|
||||
model_converter * mk_fpa2bv_model_converter(ast_manager & m, fpa2bv_converter const & conv) {
|
||||
model_converter * mk_fpa2bv_model_converter(ast_manager & m, fpa2bv_converter & conv) {
|
||||
return alloc(fpa2bv_model_converter, m, conv);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -19,78 +19,28 @@ Notes:
|
|||
#ifndef FPA2BV_MODEL_CONVERTER_H_
|
||||
#define FPA2BV_MODEL_CONVERTER_H_
|
||||
|
||||
#include"th_rewriter.h"
|
||||
#include"fpa2bv_converter.h"
|
||||
#include"model_converter.h"
|
||||
#include"bv2fpa_converter.h"
|
||||
|
||||
class fpa2bv_model_converter : public model_converter {
|
||||
ast_manager & m;
|
||||
fpa_util m_fpa_util;
|
||||
bv_util m_bv_util;
|
||||
th_rewriter m_th_rw;
|
||||
|
||||
obj_map<func_decl, expr*> m_const2bv;
|
||||
obj_map<func_decl, expr*> m_rm_const2bv;
|
||||
obj_map<func_decl, func_decl*> m_uf2bvuf;
|
||||
obj_map<func_decl, std::pair<app*, app*> > m_specials;
|
||||
bv2fpa_converter * m_bv2fp;
|
||||
|
||||
public:
|
||||
fpa2bv_model_converter(ast_manager & m, fpa2bv_converter const & conv) :
|
||||
m(m),
|
||||
m_fpa_util(m),
|
||||
m_bv_util(m),
|
||||
m_th_rw(m) {
|
||||
for (obj_map<func_decl, expr*>::iterator it = conv.m_const2bv.begin();
|
||||
it != conv.m_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
m_const2bv.insert(it->m_key, it->m_value);
|
||||
m.inc_ref(it->m_key);
|
||||
m.inc_ref(it->m_value);
|
||||
}
|
||||
for (obj_map<func_decl, expr*>::iterator it = conv.m_rm_const2bv.begin();
|
||||
it != conv.m_rm_const2bv.end();
|
||||
it++)
|
||||
{
|
||||
m_rm_const2bv.insert(it->m_key, it->m_value);
|
||||
m.inc_ref(it->m_key);
|
||||
m.inc_ref(it->m_value);
|
||||
}
|
||||
for (obj_map<func_decl, func_decl*>::iterator it = conv.m_uf2bvuf.begin();
|
||||
it != conv.m_uf2bvuf.end();
|
||||
it++)
|
||||
{
|
||||
m_uf2bvuf.insert(it->m_key, it->m_value);
|
||||
m.inc_ref(it->m_key);
|
||||
m.inc_ref(it->m_value);
|
||||
}
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = conv.m_min_max_specials.begin();
|
||||
it != conv.m_min_max_specials.end();
|
||||
it++) {
|
||||
m_specials.insert(it->m_key, it->m_value);
|
||||
m.inc_ref(it->m_key);
|
||||
m.inc_ref(it->m_value.first);
|
||||
m.inc_ref(it->m_value.second);
|
||||
}
|
||||
fpa2bv_model_converter(ast_manager & m, fpa2bv_converter & conv) :
|
||||
m(m) {
|
||||
m_bv2fp = alloc(bv2fpa_converter, m, conv);
|
||||
}
|
||||
|
||||
virtual ~fpa2bv_model_converter() {
|
||||
dec_ref_map_key_values(m, m_const2bv);
|
||||
dec_ref_map_key_values(m, m_rm_const2bv);
|
||||
dec_ref_map_key_values(m, m_uf2bvuf);
|
||||
for (obj_map<func_decl, std::pair<app*, app*> >::iterator it = m_specials.begin();
|
||||
it != m_specials.end();
|
||||
it++) {
|
||||
m.dec_ref(it->m_key);
|
||||
m.dec_ref(it->m_value.first);
|
||||
m.dec_ref(it->m_value.second);
|
||||
}
|
||||
if (m_bv2fp) dealloc(m_bv2fp);
|
||||
m_bv2fp = 0;
|
||||
}
|
||||
|
||||
virtual void operator()(model_ref & md, unsigned goal_idx) {
|
||||
SASSERT(goal_idx == 0);
|
||||
model * new_model = alloc(model, m);
|
||||
obj_hashtable<func_decl> bits;
|
||||
convert(md.get(), new_model);
|
||||
md = new_model;
|
||||
}
|
||||
|
|
@ -106,32 +56,12 @@ public:
|
|||
protected:
|
||||
fpa2bv_model_converter(ast_manager & m) :
|
||||
m(m),
|
||||
m_fpa_util(m),
|
||||
m_bv_util(m),
|
||||
m_th_rw(m) {}
|
||||
m_bv2fp(0) {}
|
||||
|
||||
void convert(model * bv_mdl, model * float_mdl);
|
||||
expr_ref convert_bv2fp(sort * s, expr * sgn, expr * exp, expr * sig);
|
||||
expr_ref convert_bv2fp(model * bv_mdl, sort * s, expr * bv);
|
||||
expr_ref convert_bv2rm(expr * eval_v);
|
||||
expr_ref convert_bv2rm(model * bv_mdl, expr * val);
|
||||
|
||||
func_interp * convert_func_interp(func_decl * f, func_decl * bv_f, model * bv_mdl);
|
||||
expr_ref rebuild_floats(model * bv_mdl, sort * s, expr * e);
|
||||
|
||||
class array_model {
|
||||
public:
|
||||
func_decl * new_float_fd;
|
||||
func_interp * new_float_fi;
|
||||
func_decl * bv_fd;
|
||||
expr_ref result;
|
||||
array_model(ast_manager & m) : new_float_fd(0), new_float_fi(0), bv_fd(0), result(m) {}
|
||||
};
|
||||
|
||||
array_model convert_array_func_interp(func_decl * f, func_decl * bv_f, model * bv_mdl);
|
||||
void convert(model_core * mc, model * float_mdl);
|
||||
};
|
||||
|
||||
|
||||
model_converter * mk_fpa2bv_model_converter(ast_manager & m, fpa2bv_converter const & conv);
|
||||
model_converter * mk_fpa2bv_model_converter(ast_manager & m, fpa2bv_converter & conv);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue