current theta: 0.659483110044 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 2548 rows and 2548 columns Presolve time: 0.10s Presolved: 4425 rows, 4507 columns, 13189 nonzeros Variable types: 0 continuous, 4507 integer (4507 binary) Root relaxation: objective 0.000000e+00, 478 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.00% - 0s Explored 0 nodes (895 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [45, 46, 55, 64, 76, 77, 79, 80, 82] edges [(35, 80), (40, 82), (24, 45), (73, 55), (5, 82), (45, 45), (77, 79), (22, 82), (17, 82), (78, 82), (3, 55), (14, 45), (13, 45), (28, 82), (27, 82), (74, 55), (57, 80), (0, 55), (8, 45), (49, 45), (80, 80), (51, 45), (31, 45), (4, 55), (26, 82), (64, 79), (68, 82), (56, 82), (54, 82), (21, 82), (34, 82), (55, 80), (67, 45), (75, 82), (20, 80), (41, 45), (10, 80), (16, 82), (58, 79), (6, 45), (79, 79), (76, 79), (44, 55), (39, 82), (25, 55), (2, 80), (33, 79), (9, 55), (70, 55), (61, 82), (53, 80), (66, 80), (38, 82), (65, 80), (19, 80), (30, 80), (37, 82), (43, 80), (15, 79), (47, 45), (11, 45), (42, 80), (60, 80), (71, 80), (52, 82), (32, 82), (36, 77), (50, 80), (62, 45), (63, 45), (81, 55), (1, 80), (12, 45), (18, 45), (46, 82), (72, 55), (82, 82), (23, 45), (7, 82), (59, 80), (48, 45), (29, 45), (69, 80)] current theta: 0.329741555022 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 5236 rows and 5239 columns Presolve time: 0.03s Presolved: 1737 rows, 1816 columns, 5122 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1816 integer (1816 binary) Root relaxation: objective 0.000000e+00, 749 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.00% - 0s Explored 0 nodes (1361 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [41, 44, 45, 57, 58, 64, 75, 81, 82] edges [(29, 44), (70, 81), (14, 41), (75, 41), (40, 41), (37, 41), (45, 45), (18, 82), (22, 82), (17, 82), (78, 82), (49, 41), (51, 41), (74, 44), (28, 81), (13, 45), (10, 58), (80, 57), (61, 58), (57, 81), (27, 82), (4, 81), (7, 75), (23, 82), (31, 45), (42, 64), (32, 58), (64, 64), (25, 81), (79, 64), (5, 45), (3, 81), (67, 45), (81, 57), (20, 81), (41, 45), (2, 57), (59, 57), (44, 81), (15, 64), (34, 75), (73, 81), (30, 57), (52, 41), (56, 44), (69, 64), (39, 82), (9, 44), (55, 57), (53, 81), (77, 64), (65, 81), (19, 81), (1, 44), (26, 41), (58, 58), (43, 81), (62, 41), (72, 44), (71, 81), (24, 82), (11, 45), (47, 44), (35, 57), (60, 81), (50, 81), (68, 64), (16, 75), (54, 64), (8, 82), (12, 45), (33, 64), (76, 64), (46, 82), (0, 81), (82, 82), (48, 44), (21, 41), (66, 57), (63, 41), (6, 82), (36, 75), (38, 75)] current theta: 0.164870777511 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6344 rows and 6418 columns Presolve time: 0.01s Presolved: 629 rows, 637 columns, 1727 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 637 integer (637 binary) Root relaxation: cutoff, 690 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 - 0.10000 - - 0s Explored 0 nodes (690 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.247306166266 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 5814 rows and 5835 columns Presolve time: 0.02s Presolved: 1159 rows, 1220 columns, 3370 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1220 integer (1220 binary) Root relaxation: objective 0.000000e+00, 785 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.00% - 0s Explored 0 nodes (1603 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [20, 29, 36, 42, 57, 62, 64, 78, 81] edges [(70, 81), (30, 42), (52, 62), (17, 36), (82, 78), (63, 78), (58, 42), (32, 36), (54, 36), (62, 62), (47, 29), (80, 57), (68, 36), (23, 78), (18, 78), (48, 29), (81, 81), (36, 36), (38, 36), (12, 62), (57, 57), (64, 64), (1, 29), (25, 81), (79, 64), (46, 36), (3, 81), (22, 78), (49, 78), (37, 78), (13, 29), (40, 20), (53, 57), (45, 62), (27, 78), (59, 57), (65, 57), (29, 62), (15, 64), (73, 81), (71, 57), (24, 78), (6, 78), (9, 20), (74, 81), (55, 57), (20, 20), (44, 20), (77, 64), (14, 62), (4, 57), (28, 20), (72, 20), (43, 81), (42, 42), (16, 36), (56, 20), (39, 78), (35, 57), (10, 42), (5, 62), (19, 57), (2, 42), (31, 62), (75, 78), (61, 36), (8, 78), (7, 36), (41, 62), (26, 78), (33, 64), (76, 64), (0, 81), (21, 78), (60, 57), (69, 42), (66, 57), (51, 62), (67, 29), (78, 78), (34, 20), (50, 57), (11, 29)] current theta: 0.206088471889 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6106 rows and 6147 columns Presolve time: 0.01s Presolved: 867 rows, 908 columns, 2474 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 908 integer (908 binary) Root relaxation: cutoff, 1036 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 - 0.10000 - - 0s Explored 0 nodes (1036 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.226697319077 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 5946 rows and 5973 columns Presolve time: 0.01s Presolved: 1027 rows, 1082 columns, 2968 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1082 integer (1082 binary) Root relaxation: objective 0.000000e+00, 825 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.00% - 0s Explored 0 nodes (825 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [14, 24, 28, 32, 42, 57, 63, 64, 72] edges [(26, 63), (82, 24), (30, 42), (52, 63), (29, 14), (25, 72), (20, 72), (78, 24), (80, 57), (38, 32), (27, 63), (22, 24), (81, 72), (17, 24), (45, 14), (14, 14), (37, 63), (70, 72), (3, 72), (21, 63), (63, 63), (73, 28), (57, 57), (64, 64), (68, 32), (79, 64), (28, 28), (74, 72), (36, 32), (58, 28), (53, 57), (59, 57), (65, 57), (39, 24), (15, 64), (16, 32), (31, 14), (62, 14), (71, 57), (23, 24), (18, 24), (55, 57), (43, 42), (9, 72), (49, 63), (24, 24), (77, 64), (67, 14), (4, 57), (47, 14), (42, 42), (75, 63), (40, 63), (72, 72), (5, 63), (35, 57), (44, 72), (10, 42), (12, 14), (0, 57), (8, 63), (11, 72), (19, 57), (2, 42), (34, 63), (41, 63), (48, 14), (33, 64), (76, 64), (51, 63), (6, 24), (60, 57), (46, 24), (69, 42), (66, 57), (32, 32), (1, 72), (61, 32), (13, 14), (54, 32), (50, 57), (56, 28), (7, 32)] current theta: 0.216392895483 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6018 rows and 6051 columns Presolve time: 0.01s Presolved: 955 rows, 1004 columns, 2746 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1004 integer (1004 binary) Root relaxation: objective 0.000000e+00, 863 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.00% - 0s Explored 0 nodes (863 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [2, 14, 18, 36, 41, 57, 58, 64, 72] edges [(14, 41), (40, 41), (21, 18), (43, 2), (17, 36), (37, 41), (29, 14), (25, 72), (32, 36), (49, 41), (54, 36), (67, 72), (51, 41), (8, 18), (68, 58), (6, 18), (20, 72), (80, 57), (81, 72), (45, 14), (82, 18), (2, 2), (73, 58), (70, 72), (3, 72), (36, 36), (10, 2), (38, 36), (57, 57), (64, 64), (79, 64), (69, 58), (24, 18), (22, 18), (74, 72), (28, 58), (34, 41), (56, 41), (59, 57), (65, 57), (27, 18), (5, 41), (15, 64), (60, 2), (42, 2), (31, 14), (62, 14), (71, 57), (52, 41), (55, 2), (46, 18), (41, 14), (9, 72), (77, 64), (4, 57), (47, 14), (26, 41), (58, 58), (11, 14), (16, 36), (72, 72), (53, 2), (75, 18), (35, 57), (44, 72), (12, 14), (0, 57), (19, 57), (18, 18), (78, 18), (61, 36), (48, 14), (7, 36), (33, 64), (76, 64), (39, 18), (30, 2), (23, 18), (66, 57), (63, 41), (1, 72), (13, 14), (50, 57)] current theta: 0.211240683686 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:06 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6068 rows and 6105 columns Presolve time: 0.01s Presolved: 905 rows, 950 columns, 2592 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 950 integer (950 binary) Root relaxation: objective 0.000000e+00, 871 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.00% - 0s Explored 0 nodes (871 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [14, 15, 24, 28, 32, 43, 57, 63, 72] edges [(26, 63), (82, 24), (30, 43), (52, 63), (29, 14), (25, 72), (67, 72), (20, 72), (78, 24), (80, 57), (38, 32), (27, 63), (22, 24), (81, 72), (17, 24), (45, 14), (14, 14), (71, 43), (76, 15), (37, 63), (70, 72), (3, 72), (21, 63), (63, 63), (73, 28), (57, 57), (8, 24), (28, 28), (35, 43), (77, 15), (15, 15), (74, 72), (60, 43), (36, 32), (58, 28), (59, 57), (65, 57), (39, 24), (16, 32), (31, 14), (62, 14), (23, 24), (43, 43), (18, 24), (55, 57), (9, 72), (49, 63), (24, 24), (4, 57), (47, 14), (75, 63), (11, 14), (72, 72), (42, 43), (40, 28), (5, 63), (44, 72), (12, 14), (0, 57), (68, 15), (10, 43), (19, 57), (53, 43), (34, 63), (41, 63), (2, 43), (79, 15), (48, 14), (69, 43), (51, 63), (6, 24), (33, 15), (46, 24), (66, 57), (32, 32), (1, 72), (61, 32), (13, 14), (54, 32), (50, 57), (56, 28), (64, 15), (7, 32)] current theta: 0.208664577787 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:07 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6080 rows and 6119 columns Presolve time: 0.01s Presolved: 893 rows, 936 columns, 2554 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 936 integer (936 binary) Root relaxation: cutoff, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 0.00000 -1.00000 - - 0s Explored 0 nodes (40 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [14, 15, 24, 28, 32, 43, 57, 63, 72] edges [(26, 63), (82, 24), (30, 43), (52, 63), (29, 14), (25, 72), (67, 72), (20, 72), (78, 24), (80, 57), (38, 32), (27, 63), (22, 24), (81, 72), (17, 24), (45, 14), (14, 14), (71, 43), (76, 15), (37, 63), (70, 72), (3, 72), (21, 63), (63, 63), (73, 28), (57, 57), (8, 24), (28, 28), (35, 43), (77, 15), (15, 15), (74, 72), (60, 43), (36, 32), (58, 28), (59, 57), (65, 57), (39, 24), (16, 32), (31, 14), (62, 14), (23, 24), (43, 43), (18, 24), (55, 57), (9, 72), (49, 63), (24, 24), (4, 57), (47, 14), (75, 63), (11, 14), (72, 72), (42, 43), (40, 28), (5, 63), (44, 72), (12, 14), (0, 57), (68, 15), (10, 43), (19, 57), (53, 43), (34, 63), (41, 63), (2, 43), (79, 15), (48, 14), (69, 43), (51, 63), (6, 24), (33, 15), (46, 24), (66, 57), (32, 32), (1, 72), (61, 32), (13, 14), (54, 32), (50, 57), (56, 28), (64, 15), (7, 32)] current theta: 0.207376524838 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:07 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6088 rows and 6127 columns Presolve time: 0.01s Presolved: 885 rows, 928 columns, 2530 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 928 integer (928 binary) Root relaxation: cutoff, 977 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 - 0.10000 - - 0s Explored 0 nodes (977 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.208020551313 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:07 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6086 rows and 6125 columns Presolve time: 0.01s Presolved: 887 rows, 930 columns, 2536 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 930 integer (930 binary) Root relaxation: cutoff, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 0.00000 -1.00000 - - 0s Explored 0 nodes (40 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [14, 15, 24, 28, 32, 43, 57, 63, 72] edges [(26, 63), (82, 24), (30, 43), (52, 63), (29, 14), (25, 72), (67, 72), (20, 72), (78, 24), (80, 57), (38, 32), (27, 63), (22, 24), (81, 72), (17, 24), (45, 14), (14, 14), (71, 43), (76, 15), (37, 63), (70, 72), (3, 72), (21, 63), (63, 63), (73, 28), (57, 57), (8, 24), (28, 28), (35, 43), (77, 15), (15, 15), (74, 72), (60, 43), (36, 32), (58, 28), (59, 57), (65, 57), (39, 24), (16, 32), (31, 14), (62, 14), (23, 24), (43, 43), (18, 24), (55, 57), (9, 72), (49, 63), (24, 24), (4, 57), (47, 14), (75, 63), (11, 14), (72, 72), (42, 43), (40, 28), (5, 63), (44, 72), (12, 14), (0, 57), (68, 15), (10, 43), (19, 57), (53, 43), (34, 63), (41, 63), (2, 43), (79, 15), (48, 14), (69, 43), (51, 63), (6, 24), (33, 15), (46, 24), (66, 57), (32, 32), (1, 72), (61, 32), (13, 14), (54, 32), (50, 57), (56, 28), (64, 15), (7, 32)] current theta: 0.207698538075 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:07 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6086 rows and 6125 columns Presolve time: 0.01s Presolved: 887 rows, 930 columns, 2536 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 930 integer (930 binary) Root relaxation: cutoff, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 0.00000 -1.00000 - - 0s Explored 0 nodes (40 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [14, 15, 24, 28, 32, 43, 57, 63, 72] edges [(26, 63), (82, 24), (30, 43), (52, 63), (29, 14), (25, 72), (67, 72), (20, 72), (78, 24), (80, 57), (38, 32), (27, 63), (22, 24), (81, 72), (17, 24), (45, 14), (14, 14), (71, 43), (76, 15), (37, 63), (70, 72), (3, 72), (21, 63), (63, 63), (73, 28), (57, 57), (8, 24), (28, 28), (35, 43), (77, 15), (15, 15), (74, 72), (60, 43), (36, 32), (58, 28), (59, 57), (65, 57), (39, 24), (16, 32), (31, 14), (62, 14), (23, 24), (43, 43), (18, 24), (55, 57), (9, 72), (49, 63), (24, 24), (4, 57), (47, 14), (75, 63), (11, 14), (72, 72), (42, 43), (40, 28), (5, 63), (44, 72), (12, 14), (0, 57), (68, 15), (10, 43), (19, 57), (53, 43), (34, 63), (41, 63), (2, 43), (79, 15), (48, 14), (69, 43), (51, 63), (6, 24), (33, 15), (46, 24), (66, 57), (32, 32), (1, 72), (61, 32), (13, 14), (54, 32), (50, 57), (56, 28), (64, 15), (7, 32)] current theta: 0.207537531457 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:07 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6088 rows and 6127 columns Presolve time: 0.01s Presolved: 885 rows, 928 columns, 2530 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 928 integer (928 binary) Root relaxation: cutoff, 977 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 - 0.10000 - - 0s Explored 0 nodes (977 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.207618034766 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:07 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6086 rows and 6125 columns Presolve time: 0.01s Presolved: 887 rows, 930 columns, 2536 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 930 integer (930 binary) Root relaxation: cutoff, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 0.00000 -1.00000 - - 0s Explored 0 nodes (40 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% infeasibility= 0.0 updated solution: facilities [14, 15, 24, 28, 32, 43, 57, 63, 72] edges [(26, 63), (82, 24), (30, 43), (52, 63), (29, 14), (25, 72), (67, 72), (20, 72), (78, 24), (80, 57), (38, 32), (27, 63), (22, 24), (81, 72), (17, 24), (45, 14), (14, 14), (71, 43), (76, 15), (37, 63), (70, 72), (3, 72), (21, 63), (63, 63), (73, 28), (57, 57), (8, 24), (28, 28), (35, 43), (77, 15), (15, 15), (74, 72), (60, 43), (36, 32), (58, 28), (59, 57), (65, 57), (39, 24), (16, 32), (31, 14), (62, 14), (23, 24), (43, 43), (18, 24), (55, 57), (9, 72), (49, 63), (24, 24), (4, 57), (47, 14), (75, 63), (11, 14), (72, 72), (42, 43), (40, 28), (5, 63), (44, 72), (12, 14), (0, 57), (68, 15), (10, 43), (19, 57), (53, 43), (34, 63), (41, 63), (2, 43), (79, 15), (48, 14), (69, 43), (51, 63), (6, 24), (33, 15), (46, 24), (66, 57), (32, 32), (1, 72), (61, 32), (13, 14), (54, 32), (50, 57), (56, 28), (64, 15), (7, 32)]