current theta: 0.565048788402 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 346 rows and 346 columns Presolve time: 0.01s Presolved: 525 rows, 553 columns, 1543 nonzeros Variable types: 0 continuous, 553 integer (553 binary) Root relaxation: objective 0.000000e+00, 150 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 (266 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 [16, 18, 28] edges [(21, 28), (0, 28), (6, 18), (24, 16), (13, 18), (11, 28), (2, 28), (1, 16), (7, 18), (18, 18), (12, 16), (27, 28), (23, 28), (3, 28), (22, 16), (14, 28), (9, 18), (10, 16), (4, 18), (17, 16), (5, 28), (26, 18), (20, 16), (16, 16), (8, 28), (19, 28), (15, 28), (28, 18), (25, 28)] current theta: 0.282524394201 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 672 rows and 672 columns Presolve time: 0.00s Presolved: 199 rows, 227 columns, 565 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 227 integer (227 binary) Root relaxation: cutoff, 232 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 (232 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: 0.423786591302 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 498 rows and 498 columns Presolve time: 0.00s Presolved: 373 rows, 401 columns, 1087 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 401 integer (401 binary) Root relaxation: objective 0.000000e+00, 297 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 (297 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 [10, 14, 26] edges [(20, 14), (0, 14), (15, 10), (17, 10), (8, 14), (14, 14), (2, 10), (25, 10), (10, 10), (26, 26), (27, 14), (23, 14), (4, 10), (6, 26), (13, 26), (16, 10), (22, 10), (21, 14), (11, 14), (1, 14), (24, 10), (28, 14), (19, 14), (9, 14), (5, 14), (18, 26), (12, 14), (3, 14), (7, 10)] current theta: 0.353155492751 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 596 rows and 596 columns Presolve time: 0.00s Presolved: 275 rows, 303 columns, 793 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 303 integer (303 binary) Root relaxation: cutoff, 263 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 (263 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: 0.388471042027 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 542 rows and 542 columns Presolve time: 0.00s Presolved: 329 rows, 357 columns, 955 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 357 integer (357 binary) Root relaxation: cutoff, 313 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 (313 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: 0.406128816664 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 522 rows and 522 columns Presolve time: 0.00s Presolved: 349 rows, 377 columns, 1015 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 377 integer (377 binary) Root relaxation: cutoff, 297 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 (297 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: 0.414957703983 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 512 rows and 512 columns Presolve time: 0.00s Presolved: 359 rows, 387 columns, 1045 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 387 integer (387 binary) Root relaxation: objective 0.000000e+00, 272 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 (272 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, 10, 26] edges [(28, 10), (14, 8), (12, 8), (21, 8), (15, 10), (17, 10), (11, 8), (20, 8), (2, 10), (5, 8), (25, 10), (19, 8), (1, 10), (10, 10), (26, 26), (16, 8), (3, 8), (4, 10), (6, 26), (13, 26), (22, 10), (0, 8), (9, 8), (23, 8), (24, 10), (8, 8), (18, 26), (7, 10), (27, 8)] current theta: 0.410543260324 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 518 rows and 518 columns Presolve time: 0.00s Presolved: 353 rows, 381 columns, 1027 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 381 integer (381 binary) Root relaxation: cutoff, 320 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 (320 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: 0.412750482153 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 514 rows and 514 columns Presolve time: 0.00s Presolved: 357 rows, 385 columns, 1039 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 385 integer (385 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 [8, 10, 26] edges [(28, 10), (14, 8), (12, 8), (21, 8), (15, 10), (17, 10), (11, 8), (20, 8), (2, 10), (5, 8), (25, 10), (19, 8), (1, 10), (10, 10), (26, 26), (16, 8), (3, 8), (4, 10), (6, 26), (13, 26), (22, 10), (0, 8), (9, 8), (23, 8), (24, 10), (8, 8), (18, 26), (7, 10), (27, 8)] current theta: 0.411646871238 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 514 rows and 514 columns Presolve time: 0.00s Presolved: 357 rows, 385 columns, 1039 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 385 integer (385 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 [8, 10, 26] edges [(28, 10), (14, 8), (12, 8), (21, 8), (15, 10), (17, 10), (11, 8), (20, 8), (2, 10), (5, 8), (25, 10), (19, 8), (1, 10), (10, 10), (26, 26), (16, 8), (3, 8), (4, 10), (6, 26), (13, 26), (22, 10), (0, 8), (9, 8), (23, 8), (24, 10), (8, 8), (18, 26), (7, 10), (27, 8)] current theta: 0.411095065781 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 516 rows and 516 columns Presolve time: 0.00s Presolved: 355 rows, 383 columns, 1033 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 383 integer (383 binary) Root relaxation: cutoff, 325 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 (325 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: 0.41137096851 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 516 rows and 516 columns Presolve time: 0.00s Presolved: 355 rows, 383 columns, 1033 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 383 integer (383 binary) Root relaxation: cutoff, 325 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 (325 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: 0.411508919874 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 514 rows and 514 columns Presolve time: 0.00s Presolved: 357 rows, 385 columns, 1039 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 385 integer (385 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 [8, 10, 26] edges [(28, 10), (14, 8), (12, 8), (21, 8), (15, 10), (17, 10), (11, 8), (20, 8), (2, 10), (5, 8), (25, 10), (19, 8), (1, 10), (10, 10), (26, 26), (16, 8), (3, 8), (4, 10), (6, 26), (13, 26), (22, 10), (0, 8), (9, 8), (23, 8), (24, 10), (8, 8), (18, 26), (7, 10), (27, 8)] current theta: 0.411439944192 Gurobi 5.0.1 (linux64) logging started Wed Nov 21 22:51:33 2012 Optimize a model with 871 rows, 899 columns and 2581 nonzeros Presolve removed 514 rows and 514 columns Presolve time: 0.00s Presolved: 357 rows, 385 columns, 1039 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 385 integer (385 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 [8, 10, 26] edges [(28, 10), (14, 8), (12, 8), (21, 8), (15, 10), (17, 10), (11, 8), (20, 8), (2, 10), (5, 8), (25, 10), (19, 8), (1, 10), (10, 10), (26, 26), (16, 8), (3, 8), (4, 10), (6, 26), (13, 26), (22, 10), (0, 8), (9, 8), (23, 8), (24, 10), (8, 8), (18, 26), (7, 10), (27, 8)]