current theta: 0.521340425236 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 240 rows and 246 columns Presolve time: 0.00s Presolved: 267 rows, 282 columns, 770 nonzeros Variable types: 0 continuous, 282 integer (282 binary) Root relaxation: objective 0.000000e+00, 109 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 0.00% - 0s Explored 0 nodes (109 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 [3, 8, 20] edges [(5, 20), (12, 20), (8, 20), (4, 20), (19, 20), (18, 20), (9, 3), (17, 8), (10, 20), (21, 20), (16, 8), (3, 3), (20, 20), (1, 20), (0, 20), (7, 8), (13, 3), (11, 20), (2, 20), (6, 8), (15, 8), (14, 20)] current theta: 0.260670212618 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 386 rows and 407 columns Presolve time: 0.00s Presolved: 121 rows, 121 columns, 319 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 121 integer (121 binary) Root relaxation: cutoff, 122 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 (122 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.391005318927 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 304 rows and 319 columns Presolve time: 0.00s Presolved: 203 rows, 209 columns, 569 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 209 integer (209 binary) Root relaxation: objective 0.000000e+00, 165 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 0.00% - 0s Explored 0 nodes (165 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 [5, 6, 9] edges [(21, 6), (4, 5), (9, 9), (17, 6), (0, 5), (10, 5), (15, 6), (2, 5), (7, 6), (14, 5), (18, 6), (13, 9), (19, 5), (16, 6), (11, 5), (8, 6), (6, 6), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5)] current theta: 0.325837765773 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 348 rows and 369 columns Presolve time: 0.00s Presolved: 159 rows, 159 columns, 431 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 159 integer (159 binary) Root relaxation: cutoff, 157 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 (157 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: 0.35842154235 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 320 rows and 337 columns Presolve time: 0.00s Presolved: 187 rows, 191 columns, 519 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 191 integer (191 binary) Root relaxation: cutoff, 162 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 (162 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.374713430639 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 310 rows and 325 columns Presolve time: 0.00s Presolved: 197 rows, 203 columns, 551 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 203 integer (203 binary) Root relaxation: cutoff, 134 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 (134 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.382859374783 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 306 rows and 321 columns Presolve time: 0.00s Presolved: 201 rows, 207 columns, 563 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 207 integer (207 binary) Root relaxation: objective 0.000000e+00, 153 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 0.00% - 0s Explored 0 nodes (153 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)] current theta: 0.378786402711 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 306 rows and 321 columns Presolve time: 0.00s Presolved: 201 rows, 207 columns, 563 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 207 integer (207 binary) Root relaxation: cutoff, 14 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 (14 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)] current theta: 0.376749916675 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 306 rows and 321 columns Presolve time: 0.00s Presolved: 201 rows, 207 columns, 563 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 207 integer (207 binary) Root relaxation: cutoff, 14 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 (14 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)] current theta: 0.375731673657 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 308 rows and 323 columns Presolve time: 0.00s Presolved: 199 rows, 205 columns, 557 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 205 integer (205 binary) Root relaxation: cutoff, 15 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 (15 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)] current theta: 0.375222552148 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 308 rows and 323 columns Presolve time: 0.00s Presolved: 199 rows, 205 columns, 557 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 205 integer (205 binary) Root relaxation: cutoff, 15 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 (15 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)] current theta: 0.374967991393 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 310 rows and 325 columns Presolve time: 0.00s Presolved: 197 rows, 203 columns, 551 nonzeros MIP start did not produce a feasible solution Variable types: 0 continuous, 203 integer (203 binary) Root relaxation: cutoff, 134 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 (134 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e-01, gap - current theta: 0.37509527177 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 308 rows and 323 columns Presolve time: 0.00s Presolved: 199 rows, 205 columns, 557 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 205 integer (205 binary) Root relaxation: cutoff, 15 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 (15 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)] current theta: 0.375031631582 Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:26:49 2014 Optimize a model with 507 rows, 528 columns and 1496 nonzeros Presolve removed 308 rows and 323 columns Presolve time: 0.00s Presolved: 199 rows, 205 columns, 557 nonzeros Loaded MIP start with objective 0 Variable types: 0 continuous, 205 integer (205 binary) Root relaxation: cutoff, 15 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 (15 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 [5, 9, 18] edges [(4, 5), (9, 9), (8, 18), (0, 5), (6, 18), (10, 5), (2, 5), (14, 5), (7, 18), (13, 9), (19, 5), (18, 18), (11, 5), (21, 18), (17, 18), (15, 18), (5, 5), (1, 5), (20, 5), (3, 9), (12, 5), (16, 18)]