Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:30:31 2013 Optimize a model with 1980 rows, 324180 columns and 648180 nonzeros Presolve time: 1.05s Presolved: 1980 rows, 324180 columns, 648180 nonzeros Variable types: 324000 continuous, 180 integer (180 binary) Root relaxation: objective 2.950179e+05, 11051 iterations, 1.41 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 295017.897 0 3 - 295017.897 - - 2s H 0 0 300911.00000 295017.897 1.96% - 3s H 0 0 296369.00000 295017.897 0.46% - 4s 0 0 295089.668 0 4 296369.000 295089.668 0.43% - 4s 0 0 295089.668 0 3 296369.000 295089.668 0.43% - 6s 0 0 295089.909 0 4 296369.000 295089.909 0.43% - 7s 0 0 295129.495 0 4 296369.000 295129.495 0.42% - 7s 0 0 295134.652 0 3 296369.000 295134.652 0.42% - 7s 0 0 295135.194 0 3 296369.000 295135.194 0.42% - 8s 0 0 295135.194 0 3 296369.000 295135.194 0.42% - 8s 0 0 295135.194 0 3 296369.000 295135.194 0.42% - 8s 0 0 295135.194 0 3 296369.000 295135.194 0.42% - 9s 0 0 295135.194 0 3 296369.000 295135.194 0.42% - 9s 0 2 295138.516 0 3 296369.000 295138.516 0.42% - 10s H 10 9 296009.00000 295222.745 0.27% 118 12s H 14 10 295919.00000 295222.745 0.24% 86.1 12s H 15 10 295674.00000 295222.745 0.15% 80.7 12s * 17 10 16 295646.00000 295222.745 0.14% 73.0 12s H 27 9 295560.00000 295431.500 0.04% 102 14s H 27 8 295546.00000 295431.500 0.04% 102 14s * 33 4 14 295496.00000 295432.364 0.02% 91.3 14s Cutting planes: Implied bound: 142 Flow cover: 11 Explored 36 nodes (22300 simplex iterations) in 14.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.954960000000e+05, best bound 2.954675190659e+05, gap 0.0096%