Modify symbols used for logging backup solver use

pyomo/contrib/pyros/tests/test_grcs.py

@@ -3215,7 +3215,7 @@ def test_iter_log_record_master_backup(self):
 
         # now check record logged as expected
         ans = (
-            "4     1.2346e+00* 2.3457e-08   3.4568e-07   10      7.6543e-03   "
+            "4     1.2346e+00^ 2.3457e-08   3.4568e-07   10      7.6543e-03   "
             "21.200       \n"
         )
         with LoggingIntercept(level=logging.INFO) as LOG:
@@ -3265,7 +3265,7 @@ def test_iter_log_record_separation_backup(self):
             iter_record.log(logger.info)
         result2 = LOG.getvalue()
         self.assertEqual(
-            "4     1.2346e+00  2.3457e-08   3.4568e-07   10^*    7.6543e-03   "
+            "4     1.2346e+00  2.3457e-08   3.4568e-07   10^     7.6543e-03   "
             "21.200       \n",
             result2,
             msg="Iteration log record message does not match expected result",
@@ -3277,7 +3277,7 @@ def test_iter_log_record_separation_backup(self):
             iter_record.log(logger.info)
         result3 = LOG.getvalue()
         self.assertEqual(
-            "4     1.2346e+00  2.3457e-08   3.4568e-07   10*     7.6543e-03   "
+            "4     1.2346e+00  2.3457e-08   3.4568e-07   10^     7.6543e-03   "
             "21.200       \n",
             result3,
             msg="Iteration log record message does not match expected result",

pyomo/contrib/pyros/util.py

@@ -3480,11 +3480,14 @@ def _format_record_attr(self, attr_name):
                 qual = "*" if not self.dr_polishing_success else ""
             elif attr_name == "num_violated_cons":
                 all_solved_qual = "+" if not self.all_sep_problems_solved else ""
-                bkp_local_qual = "^" if self.separation_backup_local_solver else ""
-                bkp_global_qual = "*" if self.separation_backup_global_solver else ""
-                qual = all_solved_qual + bkp_local_qual + bkp_global_qual
+                bkp_qual = (
+                    "^" if self.separation_backup_local_solver
+                    or self.separation_backup_global_solver
+                    else ""
+                )
+                qual = all_solved_qual + bkp_qual
             elif attr_name == "objective":
-                qual = "*" if self.master_backup_solver else ""
+                qual = "^" if self.master_backup_solver else ""
             elif attr_name == "max_violation":
                 qual = "g" if self.global_separation else ""
             else: