From 651cb48cc388b35ade15cd024c21f90662877795 Mon Sep 17 00:00:00 2001 From: Michael Bynum Date: Mon, 4 Sep 2023 19:06:43 -0600 Subject: [PATCH] bug --- coramin/algorithms/multitree/multitree.py | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/coramin/algorithms/multitree/multitree.py b/coramin/algorithms/multitree/multitree.py index 6243edb..afbc828 100644 --- a/coramin/algorithms/multitree/multitree.py +++ b/coramin/algorithms/multitree/multitree.py @@ -956,12 +956,20 @@ def solve(self, model: _BlockData, timer: HierarchicalTimer = None) -> MultiTree break if rel_res.best_feasible_objective is not None: + self._oa_cut_helper(self.config.feasibility_tolerance) + self._partition_helper() + integer_var_values, rhs_var_bounds = self._get_nlp_specs_from_rel() + start_primal_bound = self._get_primal_bound() nlp_res = self._solve_nlp_with_fixed_vars( integer_var_values, rhs_var_bounds ) - self._oa_cut_helper(self.config.feasibility_tolerance) - self._partition_helper() + end_primal_bound = self._get_primal_bound() + + if not math.isclose(start_primal_bound, end_primal_bound, rel_tol=1e-4, abs_tol=1e-4): + relaxed_binaries, relaxed_integers = push_integers(self._relaxation) + num_lb, num_ub, avg_lb, avg_ub = self._perform_obbt(vars_to_tighten) + pop_integers(relaxed_binaries, relaxed_integers) else: self.config.solver_output_logger.warning( f"relaxation did not find a feasible solution: "