Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:09:01 2013 Optimize a model with 10070 rows, 10260 columns and 40505 nonzeros Presolve removed 15 rows and 10 columns Presolve time: 0.25s Presolved: 10055 rows, 10250 columns, 30490 nonzeros Variable types: 5255 continuous, 4995 integer (4995 binary) Root relaxation: objective 1.024210e+04, 3871 iterations, 0.17 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10242.1039 0 1 - 10242.1039 - - 0s H 0 0 10557.989095 10242.1039 2.99% - 1s 0 0 10332.2646 0 3 10557.9891 10332.2646 2.14% - 1s 0 0 10335.3641 0 3 10557.9891 10335.3641 2.11% - 1s H 0 0 10337.991337 10335.3641 0.03% - 1s 0 0 10335.3641 0 1 10337.9913 10335.3641 0.03% - 1s 0 0 10335.3641 0 3 10337.9913 10335.3641 0.03% - 1s 0 0 10335.3641 0 3 10337.9913 10335.3641 0.03% - 1s 0 2 10335.8338 0 3 10337.9913 10335.8338 0.02% - 1s H 27 6 10337.218253 10336.3981 0.01% 9.0 1s Cutting planes: Gomory: 1 Flow cover: 3 Explored 27 nodes (5496 simplex iterations) in 1.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.033721825305e+04, best bound 1.033639809521e+04, gap 0.0079%