Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:09 2013 Optimize a model with 429 rows, 15249 columns and 30459 nonzeros Presolve time: 0.02s Presolved: 429 rows, 15249 columns, 30459 nonzeros Variable types: 15210 continuous, 39 integer (39 binary) Root relaxation: objective 4.605965e+04, 706 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46059.6533 0 6 - 46059.6533 - - 0s H 0 0 46920.000000 46059.6533 1.83% - 0s H 0 0 46488.000000 46059.6533 0.92% - 0s 0 0 46346.1429 0 3 46488.0000 46346.1429 0.31% - 0s 0 0 46383.6452 0 3 46488.0000 46383.6452 0.22% - 0s 0 0 46385.1448 0 3 46488.0000 46385.1448 0.22% - 0s 0 0 46392.7618 0 5 46488.0000 46392.7618 0.20% - 0s 0 0 46393.6603 0 4 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 4 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 6 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 3 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 3 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 3 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 4 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 5 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 4 46488.0000 46393.6603 0.20% - 0s 0 0 46393.6603 0 4 46488.0000 46393.6603 0.20% - 0s 0 2 46394.7103 0 4 46488.0000 46394.7103 0.20% - 0s * 4 3 4 46450.000000 46433.6000 0.04% 12.0 0s Cutting planes: Implied bound: 36 Flow cover: 4 Explored 7 nodes (1616 simplex iterations) in 0.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.645000000000e+04, best bound 4.644756361994e+04, gap 0.0052%