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bug fixes

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-11-08 22:40:43 -08:00
parent b573b94f84
commit ba05f79415
6 changed files with 16 additions and 12 deletions
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4
src/opt/maxsmt.cpp
View file

@ -28,6 +28,7 @@ namespace opt {
lbool is_sat;
m_answer.reset();
m_msolver = 0;
m_s = &s;
if (m_soft_constraints.empty()) {
m_msolver = 0;
is_sat = s.check_sat(0, 0);
@ -80,8 +81,9 @@ namespace opt {
}
void maxsmt::commit_assignment() {
SASSERT(m_s);
for (unsigned i = 0; i < m_answer.size(); ++i) {
s->assert_expr(m_answer[i].get());
m_s->assert_expr(m_answer[i].get());
}
}

4
src/opt/maxsmt.h
View file

@ -41,14 +41,14 @@ namespace opt {
class maxsmt {
ast_manager& m;
solver* s;
solver* m_s;
volatile bool m_cancel;
expr_ref_vector m_soft_constraints;
expr_ref_vector m_answer;
vector<rational> m_weights;
scoped_ptr<maxsmt_solver> m_msolver;
public:
maxsmt(ast_manager& m): m(m), s(0), m_cancel(false), m_soft_constraints(m), m_answer(m) {}
maxsmt(ast_manager& m): m(m), m_s(0), m_cancel(false), m_soft_constraints(m), m_answer(m) {}
lbool operator()(solver& s);

9
src/opt/opt_context.cpp
View file

@ -51,8 +51,13 @@ namespace opt {
}
lbool context::optimize() {
// TBD: add configuration parameter to select between box and pareto
return optimize_box();
// TBD: does not work...
if (m_params.get_bool("pareto", false)) {
return optimize_pareto();
}
else {
return optimize_box();
}
}
lbool context::optimize_box() {

1
src/opt/opt_params.pyg
View file

@ -3,6 +3,7 @@ def_module_params('opt',
export=True,
params=(('timeout', UINT, UINT_MAX, 'set timeout'),
('engine', SYMBOL, 'basic', "select optimization engine: 'basic', 'farkas', 'symba'"),
('pareto', BOOL, False, 'return a Pareto front (as opposed to a bounding box)'),
))

8
src/opt/optsmt.cpp
View file

@ -204,13 +204,7 @@ namespace opt {
lbool optsmt::operator()(opt_solver& solver) {
s = &solver;
s->reset_objectives();
m_lower.reset();
m_upper.reset();
m_vars.reset();
for (unsigned i = 0; i < m_objs.size(); ++i) {
m_lower.push_back(inf_eps(rational(-1),inf_rational(0)));
m_upper.push_back(inf_eps(rational(1), inf_rational(0)));
}
// First check_sat call to initialize theories
lbool is_sat = s->check_sat(0, 0);
@ -297,6 +291,8 @@ namespace opt {
SASSERT(is_app(t2));
m_objs.push_back(to_app(t2));
m_is_max.push_back(is_max);
m_lower.push_back(inf_eps(rational(-1),inf_rational(0)));
m_upper.push_back(inf_eps(rational(1), inf_rational(0)));
}
void optsmt::updt_params(params_ref& p) {

2
src/opt/optsmt.h
View file

@ -51,7 +51,7 @@ namespace opt {
void display_assignment(std::ostream& out) const;
void display_range_assignment(std::ostream& out) const;
unsigned get_num_objectives() const { return m_vars.size(); }
unsigned get_num_objectives() const { return m_objs.size(); }
void commit_assignment(unsigned index);
inf_eps get_value(unsigned index) const;
inf_eps get_lower(unsigned index) const;