Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:43:26 2013 Optimize a model with 1540 rows, 196140 columns and 392140 nonzeros Presolve time: 0.46s Presolved: 1540 rows, 196140 columns, 392140 nonzeros Variable types: 196000 continuous, 140 integer (140 binary) Root relaxation: objective 2.174333e+05, 8085 iterations, 0.48 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 217433.310 0 7 - 217433.310 - - 1s H 0 0 225993.00000 217433.310 3.79% - 1s H 0 0 220608.00000 217433.310 1.44% - 2s 0 0 217551.920 0 6 220608.000 217551.920 1.39% - 2s 0 0 217551.920 0 7 220608.000 217551.920 1.39% - 3s 0 0 217551.920 0 6 220608.000 217551.920 1.39% - 4s 0 0 217579.851 0 5 220608.000 217579.851 1.37% - 4s 0 0 217581.324 0 5 220608.000 217581.324 1.37% - 4s 0 0 217581.807 0 4 220608.000 217581.807 1.37% - 5s 0 0 217581.807 0 4 220608.000 217581.807 1.37% - 5s 0 0 217581.807 0 4 220608.000 217581.807 1.37% - 5s 0 0 217581.807 0 4 220608.000 217581.807 1.37% - 5s H 0 0 218458.00000 217581.807 0.40% - 6s 0 2 217651.592 0 4 218458.000 217651.592 0.37% - 6s H 14 9 218145.00000 217827.247 0.15% 86.6 8s H 16 10 218139.00000 217827.247 0.14% 82.0 8s * 17 10 15 218119.00000 217827.247 0.13% 77.3 8s Cutting planes: Implied bound: 184 Flow cover: 1 Explored 42 nodes (18488 simplex iterations) in 9.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.181190000000e+05, best bound 2.181065494669e+05, gap 0.0057%