Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:25:27 2013 Optimize a model with 627 rows, 32547 columns and 65037 nonzeros Presolve time: 0.04s Presolved: 627 rows, 32547 columns, 65037 nonzeros Variable types: 32490 continuous, 57 integer (57 binary) Root relaxation: objective 6.277292e+04, 1391 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 62772.9221 0 11 - 62772.9221 - - 0s H 0 0 65291.000000 62772.9221 3.86% - 0s H 0 0 63261.000000 62772.9221 0.77% - 0s 0 0 63031.8218 0 6 63261.0000 63031.8218 0.36% - 0s 0 0 63051.4157 0 5 63261.0000 63051.4157 0.33% - 0s 0 0 63054.1905 0 6 63261.0000 63054.1905 0.33% - 0s 0 0 63054.1905 0 11 63261.0000 63054.1905 0.33% - 0s 0 0 63054.1905 0 6 63261.0000 63054.1905 0.33% - 0s 0 0 63054.1905 0 5 63261.0000 63054.1905 0.33% - 0s 0 0 63056.3698 0 5 63261.0000 63056.3698 0.32% - 0s 0 0 63057.4962 0 5 63261.0000 63057.4962 0.32% - 0s 0 0 63057.5026 0 5 63261.0000 63057.5026 0.32% - 0s 0 0 63057.5026 0 5 63261.0000 63057.5026 0.32% - 0s 0 0 63057.5026 0 5 63261.0000 63057.5026 0.32% - 0s 0 0 63062.1548 0 4 63261.0000 63062.1548 0.31% - 0s 0 2 63062.1759 0 4 63261.0000 63062.1759 0.31% - 0s H 3 2 63112.857143 63081.6434 0.05% 34.0 1s * 5 1 4 63109.000000 63081.6434 0.04% 26.2 1s Cutting planes: Implied bound: 84 Flow cover: 4 Explored 7 nodes (3594 simplex iterations) in 1.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.310900000000e+04, best bound 6.310900000000e+04, gap 0.0%