current theta: 0.597472089588 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 340 rows and 340 columns Presolve time: 0.01s Presolved: 591 rows, 620 columns, 1740 nonzeros Variable types: 0 continuous, 620 integer (620 binary) Root relaxation: objective 0.000000e+00, 166 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 (166 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, 28, 29] edges [(6, 28), (17, 20), (24, 28), (12, 29), (5, 20), (9, 29), (23, 20), (19, 29), (18, 20), (2, 28), (29, 20), (28, 29), (25, 29), (4, 29), (21, 29), (1, 29), (20, 20), (16, 28), (10, 29), (0, 20), (8, 28), (26, 29), (13, 29), (15, 28), (11, 20), (7, 20), (22, 20), (27, 29), (14, 20), (3, 29)] current theta: 0.298736044794 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 692 rows and 692 columns Presolve time: 0.00s Presolved: 239 rows, 268 columns, 684 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 268 integer (268 binary) Root relaxation: cutoff, 276 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 (276 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - current theta: 0.448104067191 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 524 rows and 524 columns Presolve time: 0.00s Presolved: 407 rows, 436 columns, 1188 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 436 integer (436 binary) Root relaxation: objective 0.000000e+00, 304 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 (304 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 [8, 13, 27] edges [(19, 13), (13, 13), (21, 8), (28, 13), (20, 27), (7, 27), (25, 13), (3, 13), (1, 13), (12, 13), (17, 27), (9, 13), (2, 8), (5, 13), (22, 27), (18, 27), (16, 8), (23, 27), (0, 13), (11, 27), (24, 8), (4, 13), (8, 8), (15, 27), (10, 13), (27, 27), (29, 13), (6, 8), (14, 13), (26, 27)] current theta: 0.373420055993 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 600 rows and 600 columns Presolve time: 0.00s Presolved: 331 rows, 360 columns, 960 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 360 integer (360 binary) Root relaxation: cutoff, 339 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 (339 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: 0.410762061592 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 572 rows and 572 columns Presolve time: 0.00s Presolved: 359 rows, 388 columns, 1044 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 388 integer (388 binary) Root relaxation: objective 0.000000e+00, 330 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 (330 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 [0, 8, 15] edges [(9, 0), (7, 15), (1, 0), (15, 15), (0, 0), (18, 15), (2, 8), (29, 0), (16, 8), (14, 0), (21, 0), (22, 15), (13, 0), (24, 8), (20, 0), (5, 0), (12, 0), (19, 0), (26, 0), (8, 8), (4, 0), (11, 0), (25, 0), (3, 0), (27, 15), (28, 8), (17, 15), (23, 15), (10, 0), (6, 8)] current theta: 0.392091058792 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 584 rows and 584 columns Presolve time: 0.00s Presolved: 347 rows, 376 columns, 1008 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 376 integer (376 binary) Root relaxation: cutoff, 332 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 (332 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: 0.401426560192 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 580 rows and 580 columns Presolve time: 0.00s Presolved: 351 rows, 380 columns, 1020 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 380 integer (380 binary) Root relaxation: cutoff, 348 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 (348 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: 0.406094310892 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 576 rows and 576 columns Presolve time: 0.00s Presolved: 355 rows, 384 columns, 1032 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 384 integer (384 binary) Root relaxation: cutoff, 373 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 (373 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: 0.408428186242 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 572 rows and 572 columns Presolve time: 0.00s Presolved: 359 rows, 388 columns, 1044 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 388 integer (388 binary) Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 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, 8, 15] edges [(9, 0), (7, 15), (1, 0), (15, 15), (0, 0), (18, 15), (2, 8), (29, 0), (16, 8), (14, 0), (21, 0), (22, 15), (13, 0), (24, 8), (20, 0), (5, 0), (12, 0), (19, 0), (26, 0), (8, 8), (4, 0), (11, 0), (25, 0), (3, 0), (27, 15), (28, 8), (17, 15), (23, 15), (10, 0), (6, 8)] current theta: 0.407261248567 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 572 rows and 572 columns Presolve time: 0.00s Presolved: 359 rows, 388 columns, 1044 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 388 integer (388 binary) Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 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, 8, 15] edges [(9, 0), (7, 15), (1, 0), (15, 15), (0, 0), (18, 15), (2, 8), (29, 0), (16, 8), (14, 0), (21, 0), (22, 15), (13, 0), (24, 8), (20, 0), (5, 0), (12, 0), (19, 0), (26, 0), (8, 8), (4, 0), (11, 0), (25, 0), (3, 0), (27, 15), (28, 8), (17, 15), (23, 15), (10, 0), (6, 8)] current theta: 0.406677779729 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 572 rows and 572 columns Presolve time: 0.00s Presolved: 359 rows, 388 columns, 1044 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 388 integer (388 binary) Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 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, 8, 15] edges [(9, 0), (7, 15), (1, 0), (15, 15), (0, 0), (18, 15), (2, 8), (29, 0), (16, 8), (14, 0), (21, 0), (22, 15), (13, 0), (24, 8), (20, 0), (5, 0), (12, 0), (19, 0), (26, 0), (8, 8), (4, 0), (11, 0), (25, 0), (3, 0), (27, 15), (28, 8), (17, 15), (23, 15), (10, 0), (6, 8)] current theta: 0.406386045311 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 576 rows and 576 columns Presolve time: 0.00s Presolved: 355 rows, 384 columns, 1032 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 384 integer (384 binary) Root relaxation: cutoff, 373 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 (373 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: 0.40653191252 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 574 rows and 574 columns Presolve time: 0.00s Presolved: 357 rows, 386 columns, 1038 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 386 integer (386 binary) Root relaxation: cutoff, 324 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 (324 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: 0.406604846125 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:40 2012 Optimize a model with 931 rows, 960 columns and 2760 nonzeros Presolve removed 572 rows and 572 columns Presolve time: 0.00s Presolved: 359 rows, 388 columns, 1044 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 388 integer (388 binary) Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 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, 8, 15] edges [(9, 0), (7, 15), (1, 0), (15, 15), (0, 0), (18, 15), (2, 8), (29, 0), (16, 8), (14, 0), (21, 0), (22, 15), (13, 0), (24, 8), (20, 0), (5, 0), (12, 0), (19, 0), (26, 0), (8, 8), (4, 0), (11, 0), (25, 0), (3, 0), (27, 15), (28, 8), (17, 15), (23, 15), (10, 0), (6, 8)]