Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:04:31 2013 Optimize a model with 300 rows, 6220 columns and 46170 nonzeros Presolve removed 10 rows and 1130 columns Presolve time: 0.07s Presolved: 290 rows, 5090 columns, 42170 nonzeros Variable types: 5010 continuous, 80 integer (80 binary) Root relaxation: objective 2.387367e+04, 272 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 23873.6700 0 5 - 23873.6700 - - 0s H 0 0 23950.729422 23873.6700 0.32% - 0s 0 0 23874.0226 0 5 23950.7294 23874.0226 0.32% - 0s 0 0 23944.1408 0 4 23950.7294 23944.1408 0.03% - 0s 0 0 23944.1408 0 4 23950.7294 23944.1408 0.03% - 0s 0 0 23944.1408 0 4 23950.7294 23944.1408 0.03% - 0s 0 0 23944.1950 0 4 23950.7294 23944.1950 0.03% - 0s 0 0 23946.5551 0 6 23950.7294 23946.5551 0.02% - 0s 0 0 23950.5118 0 4 23950.7294 23950.5118 0.00% - 0s Explored 0 nodes (1016 simplex iterations) in 0.40 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.395072942228e+04, best bound 2.395051183649e+04, gap 0.0009%