current theta: 0.66851026291 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 2150 rows and 2150 columns Presolve time: 0.11s Presolved: 4823 rows, 4905 columns, 14383 nonzeros Variable types: 0 continuous, 4905 integer (4905 binary) Root relaxation: objective 0.000000e+00, 516 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 (922 simplex iterations) in 0.13 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 [23, 24, 36, 44, 50, 52, 58, 75, 81] edges [(70, 81), (58, 44), (40, 81), (3, 50), (39, 50), (82, 81), (66, 52), (15, 81), (48, 81), (27, 81), (50, 52), (5, 81), (14, 81), (57, 81), (18, 81), (4, 81), (22, 81), (78, 81), (67, 81), (81, 81), (63, 81), (17, 50), (12, 81), (68, 81), (56, 81), (8, 50), (1, 50), (23, 75), (76, 81), (62, 81), (55, 81), (25, 81), (21, 81), (16, 44), (11, 81), (54, 81), (77, 50), (34, 81), (20, 81), (9, 50), (51, 50), (10, 81), (73, 81), (74, 81), (53, 81), (2, 81), (75, 75), (65, 81), (41, 52), (80, 75), (43, 81), (61, 81), (31, 50), (24, 81), (19, 52), (47, 81), (44, 50), (32, 52), (52, 81), (28, 50), (30, 81), (42, 52), (37, 81), (60, 81), (38, 81), (49, 50), (33, 50), (26, 50), (7, 81), (72, 81), (0, 81), (79, 81), (45, 50), (36, 50), (29, 50), (71, 50), (64, 81), (59, 52), (13, 50), (6, 50), (46, 81), (35, 81), (69, 52)] current theta: 0.334255131455 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 5196 rows and 5199 columns Presolve time: 0.03s Presolved: 1777 rows, 1856 columns, 5242 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1856 integer (1856 binary) Root relaxation: objective 0.000000e+00, 640 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 (640 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 [28, 47, 53, 62, 70, 77, 78, 79, 81] edges [(39, 70), (45, 47), (33, 53), (63, 79), (37, 53), (60, 53), (48, 81), (1, 77), (7, 78), (5, 81), (62, 62), (10, 78), (77, 77), (46, 62), (28, 78), (0, 53), (57, 53), (4, 81), (59, 77), (6, 77), (78, 81), (67, 81), (75, 47), (81, 81), (52, 77), (68, 81), (25, 47), (64, 79), (13, 77), (40, 53), (19, 70), (12, 62), (21, 62), (31, 47), (3, 77), (73, 62), (26, 81), (30, 53), (49, 77), (11, 81), (54, 81), (58, 28), (20, 81), (44, 81), (23, 70), (17, 78), (79, 79), (42, 47), (55, 62), (18, 53), (53, 81), (65, 62), (2, 81), (82, 62), (61, 77), (43, 81), (9, 78), (56, 47), (66, 81), (51, 77), (69, 47), (24, 28), (27, 70), (36, 77), (34, 62), (47, 47), (76, 62), (38, 81), (8, 77), (22, 53), (15, 62), (72, 81), (29, 47), (70, 47), (74, 70), (32, 47), (14, 79), (41, 77), (71, 78), (50, 77), (80, 47), (16, 28), (35, 81)] current theta: 0.167127565727 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6330 rows and 6408 columns Presolve time: 0.01s Presolved: 643 rows, 647 columns, 1765 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 647 integer (647 binary) Root relaxation: cutoff, 753 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 (753 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.250691348591 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 5836 rows and 5852 columns Presolve time: 0.01s Presolved: 1137 rows, 1203 columns, 3309 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1203 integer (1203 binary) Root relaxation: objective 0.000000e+00, 759 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 (759 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 [7, 34, 41, 45, 55, 74, 79, 80, 81] edges [(33, 41), (56, 74), (40, 41), (9, 7), (7, 7), (59, 45), (39, 45), (73, 55), (35, 79), (45, 45), (34, 55), (17, 7), (5, 81), (8, 41), (51, 41), (27, 80), (15, 34), (23, 80), (13, 45), (28, 7), (18, 81), (22, 81), (67, 81), (54, 7), (81, 81), (49, 45), (80, 80), (62, 34), (68, 81), (64, 79), (75, 80), (41, 41), (19, 45), (74, 74), (14, 55), (25, 80), (26, 81), (78, 7), (11, 81), (31, 80), (20, 81), (30, 74), (44, 81), (47, 74), (71, 7), (10, 81), (6, 45), (58, 7), (79, 79), (37, 74), (50, 41), (52, 41), (48, 79), (53, 81), (1, 45), (21, 34), (2, 81), (42, 45), (61, 41), (12, 55), (43, 81), (66, 81), (60, 81), (36, 41), (77, 41), (63, 34), (38, 81), (76, 34), (55, 55), (32, 45), (72, 81), (65, 55), (57, 74), (0, 81), (46, 55), (29, 74), (3, 45), (16, 7), (82, 55), (70, 45), (69, 80), (4, 79), (24, 7)] current theta: 0.208909457159 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6090 rows and 6132 columns Presolve time: 0.01s Presolved: 883 rows, 923 columns, 2521 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 923 integer (923 binary) Root relaxation: cutoff, 981 iterations, 0.02 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 (981 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: 0.229800402875 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 5964 rows and 5989 columns Presolve time: 0.01s Presolved: 1009 rows, 1066 columns, 2916 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1066 integer (1066 binary) Root relaxation: objective 0.000000e+00, 781 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 (781 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 [23, 27, 38, 41, 45, 54, 67, 72, 73] edges [(5, 72), (59, 45), (39, 45), (31, 27), (45, 45), (11, 67), (21, 73), (64, 38), (68, 72), (63, 73), (8, 41), (44, 67), (20, 72), (13, 45), (27, 27), (16, 54), (62, 73), (9, 67), (78, 38), (58, 54), (38, 38), (49, 45), (51, 45), (35, 38), (48, 38), (82, 73), (41, 41), (47, 27), (19, 45), (7, 54), (10, 72), (53, 72), (24, 54), (80, 27), (17, 54), (73, 73), (50, 45), (81, 38), (79, 38), (69, 27), (55, 73), (74, 27), (6, 45), (12, 73), (30, 72), (22, 67), (52, 41), (34, 73), (1, 45), (76, 73), (54, 54), (42, 45), (37, 72), (28, 67), (0, 38), (61, 41), (40, 67), (72, 72), (18, 67), (46, 73), (23, 23), (36, 41), (26, 67), (77, 41), (33, 67), (29, 27), (15, 73), (75, 23), (65, 72), (71, 54), (4, 38), (32, 45), (60, 72), (14, 73), (67, 67), (25, 27), (3, 45), (57, 72), (2, 38), (56, 72), (66, 54), (70, 45), (43, 72)] current theta: 0.219354930017 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6020 rows and 6052 columns Presolve time: 0.01s Presolved: 953 rows, 1003 columns, 2741 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 1003 integer (1003 binary) Root relaxation: objective 0.000000e+00, 935 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 (935 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 [12, 23, 25, 36, 38, 40, 42, 53, 54] edges [(53, 53), (51, 36), (59, 42), (43, 38), (33, 40), (37, 53), (5, 38), (3, 53), (55, 12), (60, 53), (8, 40), (52, 36), (64, 38), (27, 25), (34, 12), (50, 53), (22, 38), (76, 12), (16, 54), (57, 53), (45, 42), (58, 54), (38, 38), (65, 12), (13, 42), (67, 40), (14, 12), (35, 38), (36, 36), (48, 38), (19, 42), (39, 42), (80, 25), (7, 54), (15, 12), (41, 40), (24, 54), (17, 54), (11, 53), (79, 38), (9, 40), (82, 12), (46, 12), (44, 54), (28, 54), (74, 25), (62, 12), (26, 40), (54, 54), (0, 38), (42, 42), (68, 53), (12, 12), (21, 12), (61, 40), (63, 12), (30, 25), (70, 42), (23, 23), (32, 42), (6, 36), (20, 53), (78, 54), (77, 40), (75, 23), (71, 54), (4, 38), (10, 53), (29, 25), (72, 53), (56, 25), (73, 12), (81, 53), (69, 42), (1, 36), (2, 38), (25, 25), (47, 42), (49, 53), (66, 54), (18, 40), (40, 40), (31, 25)] current theta: 0.214132193588 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:10 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6062 rows and 6101 columns Presolve time: 0.01s Presolved: 911 rows, 954 columns, 2608 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 954 integer (954 binary) Root relaxation: cutoff, 1007 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 (1007 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: 0.216743561803 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:11 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6036 rows and 6073 columns Presolve time: 0.01s Presolved: 937 rows, 982 columns, 2688 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 982 integer (982 binary) Root relaxation: objective 0.000000e+00, 944 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 (944 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 [12, 23, 27, 32, 36, 38, 40, 53, 54] edges [(53, 53), (51, 36), (43, 38), (33, 40), (37, 53), (5, 38), (3, 53), (55, 12), (60, 53), (31, 27), (8, 40), (70, 32), (52, 36), (64, 38), (34, 12), (50, 53), (22, 38), (76, 12), (27, 27), (16, 54), (57, 53), (58, 54), (59, 32), (38, 38), (65, 12), (67, 40), (14, 12), (35, 38), (36, 36), (48, 38), (7, 54), (15, 12), (41, 40), (24, 54), (80, 27), (17, 54), (11, 53), (79, 38), (9, 40), (42, 32), (82, 12), (74, 27), (46, 12), (44, 54), (39, 32), (45, 32), (28, 54), (47, 32), (62, 12), (26, 40), (54, 54), (13, 32), (30, 27), (0, 38), (68, 53), (12, 12), (21, 12), (61, 40), (63, 12), (69, 32), (23, 23), (29, 27), (6, 36), (20, 53), (78, 54), (77, 40), (75, 23), (71, 54), (4, 38), (10, 53), (72, 53), (25, 27), (73, 12), (81, 53), (1, 36), (2, 38), (19, 32), (56, 27), (32, 32), (49, 53), (66, 54), (18, 40), (40, 40)] current theta: 0.215437877696 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:11 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6050 rows and 6089 columns Presolve time: 0.01s Presolved: 923 rows, 966 columns, 2644 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 966 integer (966 binary) Root relaxation: objective 0.000000e+00, 891 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 (891 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 [12, 23, 25, 32, 38, 40, 51, 54, 60] edges [(6, 51), (43, 38), (33, 40), (5, 38), (55, 12), (8, 40), (70, 32), (10, 60), (64, 38), (72, 60), (27, 25), (34, 12), (22, 38), (76, 12), (11, 60), (16, 54), (58, 54), (38, 38), (20, 38), (65, 12), (1, 51), (67, 40), (14, 12), (35, 38), (48, 38), (80, 25), (53, 60), (7, 54), (15, 12), (41, 40), (37, 60), (3, 60), (24, 54), (17, 54), (79, 38), (9, 40), (42, 32), (82, 12), (51, 51), (46, 12), (57, 60), (44, 54), (39, 32), (45, 32), (28, 54), (74, 25), (47, 32), (62, 12), (26, 40), (54, 54), (13, 32), (81, 60), (0, 38), (12, 12), (21, 12), (61, 40), (63, 12), (30, 25), (69, 32), (49, 60), (23, 23), (60, 60), (78, 54), (77, 40), (75, 23), (50, 60), (71, 54), (4, 38), (29, 25), (59, 51), (56, 25), (73, 12), (68, 60), (52, 51), (2, 38), (25, 25), (19, 32), (32, 32), (36, 51), (66, 54), (18, 40), (40, 40), (31, 25)] current theta: 0.214785035642 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:11 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6054 rows and 6093 columns Presolve time: 0.01s Presolved: 919 rows, 962 columns, 2632 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 962 integer (962 binary) Root relaxation: cutoff, 103 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 (103 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 [12, 23, 25, 32, 38, 40, 51, 54, 60] edges [(6, 51), (43, 38), (33, 40), (5, 38), (55, 12), (8, 40), (70, 32), (10, 60), (64, 38), (72, 60), (27, 25), (34, 12), (22, 38), (76, 12), (11, 60), (16, 54), (58, 54), (38, 38), (20, 38), (65, 12), (1, 51), (67, 40), (14, 12), (35, 38), (48, 38), (80, 25), (53, 60), (7, 54), (15, 12), (41, 40), (37, 60), (3, 60), (24, 54), (17, 54), (79, 38), (9, 40), (42, 32), (82, 12), (51, 51), (46, 12), (57, 60), (44, 54), (39, 32), (45, 32), (28, 54), (74, 25), (47, 32), (62, 12), (26, 40), (54, 54), (13, 32), (81, 60), (0, 38), (12, 12), (21, 12), (61, 40), (63, 12), (30, 25), (69, 32), (49, 60), (23, 23), (60, 60), (78, 54), (77, 40), (75, 23), (50, 60), (71, 54), (4, 38), (29, 25), (59, 51), (56, 25), (73, 12), (68, 60), (52, 51), (2, 38), (25, 25), (19, 32), (32, 32), (36, 51), (66, 54), (18, 40), (40, 40), (31, 25)] current theta: 0.214458614615 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:11 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6060 rows and 6099 columns Presolve time: 0.01s Presolved: 913 rows, 956 columns, 2614 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 956 integer (956 binary) Root relaxation: cutoff, 103 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 (103 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 [12, 23, 25, 32, 38, 40, 51, 54, 60] edges [(6, 51), (43, 38), (33, 40), (5, 38), (55, 12), (8, 40), (70, 32), (10, 60), (64, 38), (72, 60), (27, 25), (34, 12), (22, 38), (76, 12), (11, 60), (16, 54), (58, 54), (38, 38), (20, 38), (65, 12), (1, 51), (67, 40), (14, 12), (35, 38), (48, 38), (80, 25), (53, 60), (7, 54), (15, 12), (41, 40), (37, 60), (3, 60), (24, 54), (17, 54), (79, 38), (9, 40), (42, 32), (82, 12), (51, 51), (46, 12), (57, 60), (44, 54), (39, 32), (45, 32), (28, 54), (74, 25), (47, 32), (62, 12), (26, 40), (54, 54), (13, 32), (81, 60), (0, 38), (12, 12), (21, 12), (61, 40), (63, 12), (30, 25), (69, 32), (49, 60), (23, 23), (60, 60), (78, 54), (77, 40), (75, 23), (50, 60), (71, 54), (4, 38), (29, 25), (59, 51), (56, 25), (73, 12), (68, 60), (52, 51), (2, 38), (25, 25), (19, 32), (32, 32), (36, 51), (66, 54), (18, 40), (40, 40), (31, 25)] current theta: 0.214295404102 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:11 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6060 rows and 6099 columns Presolve time: 0.01s Presolved: 913 rows, 956 columns, 2614 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 956 integer (956 binary) Root relaxation: cutoff, 103 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 (103 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 [12, 23, 25, 32, 38, 40, 51, 54, 60] edges [(6, 51), (43, 38), (33, 40), (5, 38), (55, 12), (8, 40), (70, 32), (10, 60), (64, 38), (72, 60), (27, 25), (34, 12), (22, 38), (76, 12), (11, 60), (16, 54), (58, 54), (38, 38), (20, 38), (65, 12), (1, 51), (67, 40), (14, 12), (35, 38), (48, 38), (80, 25), (53, 60), (7, 54), (15, 12), (41, 40), (37, 60), (3, 60), (24, 54), (17, 54), (79, 38), (9, 40), (42, 32), (82, 12), (51, 51), (46, 12), (57, 60), (44, 54), (39, 32), (45, 32), (28, 54), (74, 25), (47, 32), (62, 12), (26, 40), (54, 54), (13, 32), (81, 60), (0, 38), (12, 12), (21, 12), (61, 40), (63, 12), (30, 25), (69, 32), (49, 60), (23, 23), (60, 60), (78, 54), (77, 40), (75, 23), (50, 60), (71, 54), (4, 38), (29, 25), (59, 51), (56, 25), (73, 12), (68, 60), (52, 51), (2, 38), (25, 25), (19, 32), (32, 32), (36, 51), (66, 54), (18, 40), (40, 40), (31, 25)] current theta: 0.214213798845 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:56:11 2014 Optimize a model with 6973 rows, 7055 columns and 20833 nonzeros Presolve removed 6062 rows and 6101 columns Presolve time: 0.01s Presolved: 911 rows, 954 columns, 2608 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 954 integer (954 binary) Root relaxation: cutoff, 1007 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 (1007 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 -