Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:27:45 2013 Optimize a model with 638 rows, 33698 columns and 67338 nonzeros Presolve time: 0.05s Presolved: 638 rows, 33698 columns, 67338 nonzeros Variable types: 33640 continuous, 58 integer (58 binary) Root relaxation: objective 7.246918e+04, 1512 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 72469.1802 0 6 - 72469.1802 - - 0s H 0 0 74608.000000 72469.1802 2.87% - 0s H 0 0 73972.000000 72469.1802 2.03% - 0s 0 0 72825.2867 0 8 73972.0000 72825.2867 1.55% - 0s 0 0 72866.3624 0 6 73972.0000 72866.3624 1.49% - 0s 0 0 72871.0099 0 8 73972.0000 72871.0099 1.49% - 0s 0 0 72876.3377 0 7 73972.0000 72876.3377 1.48% - 0s 0 0 72876.8338 0 6 73972.0000 72876.8338 1.48% - 0s 0 0 72877.3428 0 6 73972.0000 72877.3428 1.48% - 0s 0 0 72877.3428 0 6 73972.0000 72877.3428 1.48% - 0s H 0 0 72979.000000 72877.3428 0.14% - 0s 0 0 72877.3428 0 6 72979.0000 72877.3428 0.14% - 0s 0 0 72877.3428 0 8 72979.0000 72877.3428 0.14% - 0s 0 0 72877.3428 0 7 72979.0000 72877.3428 0.14% - 1s 0 0 72877.3428 0 7 72979.0000 72877.3428 0.14% - 1s 0 0 72877.3428 0 6 72979.0000 72877.3428 0.14% - 1s 0 0 72877.3428 0 6 72979.0000 72877.3428 0.14% - 1s 0 0 72877.3428 0 6 72979.0000 72877.3428 0.14% - 1s 0 0 72884.9361 0 5 72979.0000 72884.9361 0.13% - 1s 0 0 72894.5437 0 4 72979.0000 72894.5437 0.12% - 1s 0 2 72898.8890 0 4 72979.0000 72898.8890 0.11% - 1s Cutting planes: Implied bound: 88 Flow cover: 1 Explored 9 nodes (4125 simplex iterations) in 1.48 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.297900000000e+04, best bound 7.297900000000e+04, gap 0.0%