Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:10:41 2013 Optimize a model with 1650 rows, 225150 columns and 450150 nonzeros Presolve time: 0.53s Presolved: 1650 rows, 225150 columns, 450150 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root relaxation: objective 2.411953e+05, 7497 iterations, 0.51 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 241195.288 0 5 - 241195.288 - - 1s H 0 0 257526.00000 241195.288 6.34% - 1s H 0 0 242455.00000 241195.288 0.52% - 2s 0 0 241352.769 0 5 242455.000 241352.769 0.45% - 2s 0 0 241352.769 0 5 242455.000 241352.769 0.45% - 3s 0 0 241352.769 0 5 242455.000 241352.769 0.45% - 4s 0 0 241361.199 0 5 242455.000 241361.199 0.45% - 4s 0 0 241361.772 0 4 242455.000 241361.772 0.45% - 4s 0 0 241362.154 0 3 242455.000 241362.154 0.45% - 4s H 0 0 242392.00000 241362.154 0.42% - 4s 0 0 241362.154 0 3 242392.000 241362.154 0.42% - 5s 0 0 241362.154 0 3 242392.000 241362.154 0.42% - 5s 0 2 241366.199 0 3 242392.000 241366.199 0.42% - 6s H 14 2 241557.00000 241425.669 0.05% 16.1 6s * 15 2 15 241453.00000 241425.669 0.01% 15.4 6s Cutting planes: Implied bound: 93 Flow cover: 12 Explored 18 nodes (12333 simplex iterations) in 6.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.414530000000e+05, best bound 2.414530000000e+05, gap 0.0%