Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:11 2013 Optimize a model with 13356 rows, 12996 columns and 51876 nonzeros Presolve removed 119 rows and 0 columns Presolve time: 0.07s Presolved: 13237 rows, 12996 columns, 51638 nonzeros Variable types: 12960 continuous, 36 integer (36 binary) Root relaxation: objective 3.357181e+04, 1532 iterations, 0.09 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33571.8103 0 2 - 33571.8103 - - 0s H 0 0 33709.000000 33571.8103 0.41% - 0s H 0 0 33633.000000 33571.8103 0.18% - 0s 0 0 33571.8867 0 3 33633.0000 33571.8867 0.18% - 0s 0 0 33571.8867 0 2 33633.0000 33571.8867 0.18% - 0s 0 0 33571.9179 0 3 33633.0000 33571.9179 0.18% - 0s 0 2 33573.8205 0 3 33633.0000 33573.8205 0.18% - 0s H 3 3 33623.923077 33586.3462 0.11% 6.7 0s * 5 2 4 33607.000000 33599.5827 0.02% 12.8 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 8 nodes (2248 simplex iterations) in 0.82 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.360700000000e+04, best bound 3.360700000000e+04, gap 0.0%