current theta: 0.576703248248 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 672 rows and 672 columns Presolve time: 0.01s Presolved: 1135 rows, 1176 columns, 3360 nonzeros Variable types: 0 continuous, 1176 integer (1176 binary) Root relaxation: objective 0.000000e+00, 321 iterations, 0.00 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 0.0% - 0s Explored 0 nodes (628 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 [12, 20, 24, 26, 32] edges [(26, 26), (37, 26), (13, 26), (28, 12), (18, 24), (21, 26), (38, 26), (16, 24), (34, 24), (10, 24), (4, 26), (39, 26), (32, 24), (20, 20), (8, 24), (31, 26), (41, 26), (22, 20), (11, 24), (29, 24), (17, 20), (23, 26), (5, 24), (2, 12), (14, 26), (33, 26), (9, 26), (40, 26), (15, 26), (1, 26), (30, 24), (6, 24), (36, 12), (12, 12), (24, 26), (0, 26), (35, 26), (19, 32), (27, 26), (3, 26), (25, 24), (7, 32)] current theta: 0.288351624124 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1360 rows and 1360 columns Presolve time: 0.00s Presolved: 447 rows, 488 columns, 1296 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 488 integer (488 binary) Root relaxation: cutoff, 462 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 (462 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.432527436186 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1008 rows and 1008 columns Presolve time: 0.01s Presolved: 799 rows, 840 columns, 2352 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 840 integer (840 binary) Root relaxation: objective 0.000000e+00, 283 iterations, 0.00 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 0.0% - 0s Explored 0 nodes (625 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 [24, 26, 27, 40, 41] edges [(34, 26), (18, 27), (28, 40), (2, 26), (37, 26), (16, 41), (15, 41), (38, 26), (4, 26), (17, 27), (8, 24), (10, 41), (26, 24), (7, 26), (29, 41), (24, 24), (41, 26), (35, 24), (11, 24), (30, 41), (23, 26), (5, 24), (20, 27), (33, 26), (3, 24), (21, 24), (22, 27), (1, 26), (6, 24), (0, 41), (31, 41), (27, 27), (9, 40), (32, 27), (25, 41), (36, 40), (12, 40), (14, 40), (19, 40), (39, 40), (40, 40), (13, 27)] current theta: 0.360439530155 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1176 rows and 1176 columns Presolve time: 0.01s Presolved: 631 rows, 672 columns, 1848 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 672 integer (672 binary) Root relaxation: objective 0.000000e+00, 163 iterations, 0.00 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 0.0% - 0s Explored 0 nodes (163 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 [20, 21, 26, 40, 41] edges [(13, 20), (24, 21), (34, 21), (5, 41), (18, 41), (26, 26), (28, 40), (3, 41), (37, 26), (16, 41), (25, 21), (12, 26), (35, 41), (11, 41), (27, 20), (41, 41), (4, 26), (20, 20), (23, 41), (33, 21), (7, 26), (29, 41), (8, 41), (22, 20), (2, 40), (30, 41), (17, 20), (38, 40), (6, 41), (15, 26), (0, 41), (31, 41), (10, 21), (21, 41), (9, 40), (32, 41), (1, 41), (36, 40), (14, 40), (19, 40), (39, 40), (40, 40)] current theta: 0.324395577139 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1282 rows and 1282 columns Presolve time: 0.01s Presolved: 525 rows, 566 columns, 1530 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 566 integer (566 binary) Root relaxation: objective 0.000000e+00, 349 iterations, 0.00 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 0.0% - 0s Explored 0 nodes (596 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, 25, 26, 27, 28] edges [(34, 26), (10, 26), (29, 27), (18, 27), (26, 26), (37, 26), (28, 12), (15, 25), (38, 28), (21, 26), (4, 26), (17, 27), (11, 25), (5, 25), (12, 28), (14, 28), (7, 26), (23, 26), (2, 12), (30, 27), (8, 25), (20, 27), (33, 26), (24, 25), (22, 27), (0, 25), (41, 25), (36, 12), (27, 27), (16, 27), (9, 12), (35, 26), (25, 25), (1, 25), (39, 12), (32, 27), (6, 25), (3, 26), (40, 28), (19, 26), (31, 25), (13, 27)] current theta: 0.306373600632 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1316 rows and 1316 columns Presolve time: 0.00s Presolved: 491 rows, 532 columns, 1428 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 532 integer (532 binary) Root relaxation: cutoff, 473 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 - 0.10000 - - 0s Explored 0 nodes (473 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.315384588886 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1296 rows and 1296 columns Presolve time: 0.00s Presolved: 511 rows, 552 columns, 1488 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 552 integer (552 binary) Root relaxation: objective 0.000000e+00, 455 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 0.0% - 0s Explored 0 nodes (812 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, 20, 25, 29, 33] edges [(13, 20), (16, 29), (32, 29), (28, 12), (15, 25), (37, 12), (33, 33), (40, 12), (0, 29), (10, 33), (35, 25), (11, 25), (5, 25), (20, 20), (30, 29), (26, 33), (22, 29), (38, 12), (17, 20), (2, 12), (8, 25), (23, 33), (21, 33), (24, 25), (4, 29), (41, 25), (36, 12), (12, 12), (9, 12), (25, 25), (29, 29), (1, 25), (39, 12), (18, 29), (6, 25), (7, 12), (14, 33), (19, 12), (34, 33), (3, 33), (27, 29), (31, 25)] current theta: 0.310879094759 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1308 rows and 1308 columns Presolve time: 0.00s Presolved: 499 rows, 540 columns, 1452 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 540 integer (540 binary) Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 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, 20, 25, 29, 33] edges [(13, 20), (16, 29), (32, 29), (28, 12), (15, 25), (37, 12), (33, 33), (40, 12), (0, 29), (10, 33), (35, 25), (11, 25), (5, 25), (20, 20), (30, 29), (26, 33), (22, 29), (38, 12), (17, 20), (2, 12), (8, 25), (23, 33), (21, 33), (24, 25), (4, 29), (41, 25), (36, 12), (12, 12), (9, 12), (25, 25), (29, 29), (1, 25), (39, 12), (18, 29), (6, 25), (7, 12), (14, 33), (19, 12), (34, 33), (3, 33), (27, 29), (31, 25)] current theta: 0.308626347695 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1314 rows and 1314 columns Presolve time: 0.00s Presolved: 493 rows, 534 columns, 1434 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 534 integer (534 binary) Root relaxation: cutoff, 420 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 - 0.10000 - - 0s Explored 0 nodes (420 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.309752721227 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1312 rows and 1312 columns Presolve time: 0.00s Presolved: 495 rows, 536 columns, 1440 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 536 integer (536 binary) Root relaxation: objective 0.000000e+00, 434 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 60 - 0.00000 - - 0s Another try with MIP start 0 0 0.00000 0 60 - 0.00000 - - 0s H 0 0 0.0000000 0.00000 0.0% - 0s Cutting planes: Zero half: 6 Explored 0 nodes (1475 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 [0, 1, 12, 13, 33] edges [(13, 13), (26, 1), (28, 12), (37, 12), (33, 33), (22, 13), (40, 12), (32, 0), (10, 33), (6, 1), (31, 0), (29, 0), (20, 13), (0, 1), (25, 0), (38, 12), (17, 13), (2, 12), (5, 1), (35, 0), (1, 1), (8, 1), (36, 12), (27, 13), (12, 12), (30, 13), (18, 0), (9, 12), (16, 0), (39, 12), (15, 0), (7, 12), (14, 33), (19, 12), (4, 13), (41, 0), (34, 33), (23, 1), (11, 0), (3, 33), (21, 1), (24, 0)] current theta: 0.309189534461 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1314 rows and 1314 columns Presolve time: 0.00s Presolved: 493 rows, 534 columns, 1434 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 534 integer (534 binary) Root relaxation: cutoff, 420 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 - 0.10000 - - 0s Explored 0 nodes (420 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.309471127844 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1314 rows and 1314 columns Presolve time: 0.00s Presolved: 493 rows, 534 columns, 1434 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 534 integer (534 binary) Root relaxation: cutoff, 420 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 - 0.10000 - - 0s Explored 0 nodes (420 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.309611924535 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1314 rows and 1314 columns Presolve time: 0.00s Presolved: 493 rows, 534 columns, 1434 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 534 integer (534 binary) Root relaxation: cutoff, 420 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 - 0.10000 - - 0s Explored 0 nodes (420 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.309682322881 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:55:50 2012 Optimize a model with 1807 rows, 1848 columns and 5376 nonzeros Presolve removed 1314 rows and 1314 columns Presolve time: 0.00s Presolved: 493 rows, 534 columns, 1434 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 534 integer (534 binary) Root relaxation: cutoff, 420 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 - 0.10000 - - 0s Explored 0 nodes (420 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap -