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fix model bugs

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-01-13 16:12:59 -08:00
parent 4b112d52df
commit 4adb24ede5
10 changed files with 79 additions and 73 deletions
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36
src/opt/opt_context.cpp
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@ -17,11 +17,13 @@ Notes:
--*/
#include "opt/opt_context.h"
#include "ast/ast_pp.h"
#include "opt/opt_solver.h"
#include "opt/opt_params.hpp"
#include "ast/for_each_expr.h"
#include "ast/ast_pp.h"
#include "ast/bv_decl_plugin.h"
#include "ast/pb_decl_plugin.h"
#include "ast/ast_smt_pp.h"
#include "ast/ast_pp_util.h"
#include "model/model_smt2_pp.h"
#include "tactic/goal.h"
#include "tactic/tactic.h"
#include "tactic/arith/lia2card_tactic.h"
@ -32,17 +34,16 @@ Notes:
#include "tactic/core/solve_eqs_tactic.h"
#include "tactic/core/elim_uncnstr_tactic.h"
#include "tactic/tactical.h"
#include "model/model_smt2_pp.h"
#include "tactic/arith/card2bv_tactic.h"
#include "tactic/arith/eq2bv_tactic.h"
#include "tactic/bv/dt2bv_tactic.h"
#include "sat/sat_solver/inc_sat_solver.h"
#include "ast/bv_decl_plugin.h"
#include "ast/pb_decl_plugin.h"
#include "ast/ast_smt_pp.h"
#include "tactic/generic_model_converter.h"
#include "ast/ast_pp_util.h"
#include "sat/sat_solver/inc_sat_solver.h"
#include "qe/qsat.h"
#include "opt/opt_context.h"
#include "opt/opt_solver.h"
#include "opt/opt_params.hpp"
namespace opt {
@ -995,7 +996,11 @@ namespace opt {
}
rational v = m_objectives[index].m_adjust_value(_v);
expr_ref val(m);
model_ref mdl = md;
//
// we have to clone the model so that maxsat solver can use
// internal variables that are otherwise deleted from the model.
//
model_ref mdl = md->copy();
fix_model(mdl);
if (!mdl->eval(term, val)) {
@ -1021,9 +1026,7 @@ namespace opt {
generic_model_converter_ref fm;
if (m_arith.is_add(term)) {
expr_ref_vector args(m);
unsigned sz = term->get_num_args();
for (unsigned i = 0; i < sz; ++i) {
expr* arg = term->get_arg(i);
for (expr* arg : *term) {
if (is_mul_const(arg)) {
args.push_back(arg);
}
@ -1364,9 +1367,8 @@ namespace opt {
if (m_simplify) {
m_simplify->collect_statistics(stats);
}
map_t::iterator it = m_maxsmts.begin(), end = m_maxsmts.end();
for (; it != end; ++it) {
it->m_value->collect_statistics(stats);
for (auto const& kv : m_maxsmts) {
kv.m_value->collect_statistics(stats);
}
get_memory_statistics(stats);
get_rlimit_statistics(m.limit(), stats);