Set default mipgap higher

Author: Clara Witte

Diff for: pyomo/contrib/appsi/solvers/maingo.py

@@ -110,15 +110,15 @@ def __init__(
             'epsilonA',
             ConfigValue(
                 domain=NonNegativeFloat,
-                default=1e-4,
+                default=1e-5,
                 description="Absolute optimality tolerance",
             ),
         )
         self.tolerances.epsilonR: Optional[float] = self.tolerances.declare(
             'epsilonR',
             ConfigValue(
                 domain=NonNegativeFloat,
-                default=1e-4,
+                default=1e-5,
                 description="Relative optimality tolerance",
             ),
         )

Diff for: pyomo/contrib/appsi/solvers/tests/test_persistent_solvers.py

@@ -1211,8 +1211,6 @@ def test_fixed_binaries(
         m.c = pe.Constraint(expr=m.y >= m.x)
         m.x.fix(0)
 
-        if opt_class == MAiNGO:
-            opt.config.mip_gap = 1e-6
         res = opt.solve(m)
         self.assertAlmostEqual(res.best_feasible_objective, 0)
         m.x.fix(1)