//select bisection ratio for interval
double box::get_bisection_ratio(int i) const {
if (is_time_variable(i) && m_values[i].contains(0.0)) {
DREAL_LOG_DEBUG << "Splitting time variable";
return 0.0001;
} else {
return 0.5;
}
}
void rp_splitter_time::apply(rp_box_set& bs, int var) {
rp_interval i1, i2;
rp_box b1 = bs.remove_insert();
this->observe(b1, var);
rp_box b2 = bs.insert(b1);
if (quick_split_vars[&b1] == NULL){
quick_split_vars[&b1] = new std::set<int>();
}
quick_split_vars[&b2] = new std::set<int>(*quick_split_vars[&b1]);
if (is_time_variable(var) && !did_quick_split(&b1, var)){
if (this->real_hole(rp_box_elem(b1, var),
rp_variable_domain(rp_problem_var(*_problem, var)),
i1, i2)){
rp_interval_copy(rp_box_elem(b1, var), i1);
rp_interval_copy(rp_box_elem(b2, var), i2);
} else {
// std::cout << "TIME SPLIT" << std::endl;
rp_interval &vi = rp_box_elem(b1, var);
double split = std::min(rp_binf(vi) + precision, rp_split_point(rp_binf(vi), rp_bsup(vi), 1000, 1));
// Real variable: [a,b] --> [center,b] and [a,center]
rp_binf(rp_box_elem(b1, var)) =
rp_bsup(rp_box_elem(b2, var)) =
split;
quick_split_vars[&b1]->insert(var);
quick_split_vars[&b2]->insert(var);
// rp_interval_midpoint(rp_box_elem(b1,var));
}
} else if (rp_variable_integer(rp_problem_var(*_problem, var))){
if (this->integer_hole(rp_box_elem(b1, var),
rp_variable_domain(rp_problem_var(*_problem, var)),
i1, i2)) {
rp_interval_copy(rp_box_elem(b1, var), i1);
rp_interval_copy(rp_box_elem(b2, var), i2);
} else { // no hole found
// Integer variable: [a,b] --> [a+1,b] and [a,a]
++rp_binf(rp_box_elem(b1, var));
rp_bsup(rp_box_elem(b2, var)) = rp_binf(rp_box_elem(b2, var));
}
} else {
if (this->real_hole(rp_box_elem(b1, var),
rp_variable_domain(rp_problem_var(*_problem, var)),
i1, i2)) {
rp_interval_copy(rp_box_elem(b1, var), i1);
rp_interval_copy(rp_box_elem(b2, var), i2);
} else {
// Real variable: [a,b] --> [center,b] and [a,center]
rp_binf(rp_box_elem(b1, var)) =
rp_bsup(rp_box_elem(b2, var)) =
rp_interval_midpoint(rp_box_elem(b1, var));
}
}
}