Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:18 2013 Optimize a model with 374 rows, 11594 columns and 23154 nonzeros Presolve time: 0.02s Presolved: 374 rows, 11594 columns, 23154 nonzeros Variable types: 11560 continuous, 34 integer (34 binary) Root relaxation: objective 3.901272e+04, 534 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39012.7181 0 6 - 39012.7181 - - 0s H 0 0 39735.000000 39012.7181 1.82% - 0s H 0 0 39171.000000 39012.7181 0.40% - 0s 0 0 39161.2110 0 2 39171.0000 39161.2110 0.02% - 0s 0 0 39168.4115 0 3 39171.0000 39168.4115 0.01% - 0s Cutting planes: Implied bound: 28 Flow cover: 3 Explored 0 nodes (628 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.917100000000e+04, best bound 3.916841152648e+04, gap 0.0066%