More fix to appsi_copt

wujianjack · Oct 13, 2023 · e6d784b · e6d784b
1 parent 249c8a4
commit e6d784b
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/pyomo/contrib/appsi/solvers/copt.py b/pyomo/contrib/appsi/solvers/copt.py
@@ -872,10 +872,13 @@ def _postsolve(self, timer: HierarchicalTimer):
         results.best_feasible_objective = None
         results.best_objective_bound = None
         if self._objective is not None:
-            if self._solver_model.ismip:
+            if self._solver_model.ismip and self._solver_model.hasmipsol:
                 results.best_feasible_objective = self._solver_model.objval
                 results.best_objective_bound = self._solver_model.bestbnd
-            else:
+            elif (
+                self._solver_model.ismip == 0
+                and results.termination_condition == TerminationCondition.optimal
+            ):
                 results.best_feasible_objective = self._solver_model.lpobjval
                 results.best_objective_bound = self._solver_model.lpobjval
             if results.best_feasible_objective is not None and not math.isfinite(