Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:02:22 2013 Optimize a model with 484 rows, 19404 columns and 38764 nonzeros Presolve time: 0.03s Presolved: 484 rows, 19404 columns, 38764 nonzeros Variable types: 19360 continuous, 44 integer (44 binary) Root relaxation: objective 4.434676e+04, 781 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 44346.7590 0 5 - 44346.7590 - - 0s H 0 0 46681.000000 44346.7590 5.00% - 0s H 0 0 44668.000000 44346.7590 0.72% - 0s 0 0 44546.9125 0 4 44668.0000 44546.9125 0.27% - 0s 0 0 44569.1645 0 5 44668.0000 44569.1645 0.22% - 0s 0 0 44579.9151 0 3 44668.0000 44579.9151 0.20% - 0s 0 0 44583.2925 0 5 44668.0000 44583.2925 0.19% - 0s 0 0 44584.2774 0 3 44668.0000 44584.2774 0.19% - 0s 0 0 44584.2774 0 3 44668.0000 44584.2774 0.19% - 0s 0 0 44584.2774 0 3 44668.0000 44584.2774 0.19% - 0s 0 0 44584.2774 0 3 44668.0000 44584.2774 0.19% - 0s 0 0 44618.2340 0 4 44668.0000 44618.2340 0.11% - 0s 0 0 44640.6571 0 5 44668.0000 44640.6571 0.06% - 0s 0 0 44647.0340 0 3 44668.0000 44647.0340 0.05% - 0s 0 0 44647.0340 0 1 44668.0000 44647.0340 0.05% - 0s 0 0 44655.3593 0 3 44668.0000 44655.3593 0.03% - 0s 0 0 44666.0312 0 3 44668.0000 44666.0312 0.00% - 0s Cutting planes: Implied bound: 35 Explored 0 nodes (1361 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.466800000000e+04, best bound 4.466603125000e+04, gap 0.0044%