Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:06:08 2013 Optimize a model with 517 rows, 22137 columns and 44227 nonzeros Presolve time: 0.03s Presolved: 517 rows, 22137 columns, 44227 nonzeros Variable types: 22090 continuous, 47 integer (47 binary) Root relaxation: objective 4.571758e+04, 849 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 45717.5837 0 12 - 45717.5837 - - 0s H 0 0 50820.000000 45717.5837 10.0% - 0s H 0 0 46193.000000 45717.5837 1.03% - 0s 0 0 46059.1790 0 4 46193.0000 46059.1790 0.29% - 0s 0 0 46087.5325 0 5 46193.0000 46087.5325 0.23% - 0s 0 0 46093.6427 0 6 46193.0000 46093.6427 0.22% - 0s 0 0 46096.8902 0 4 46193.0000 46096.8902 0.21% - 0s 0 0 46097.9354 0 4 46193.0000 46097.9354 0.21% - 0s 0 0 46099.6045 0 3 46193.0000 46099.6045 0.20% - 0s 0 0 46100.3921 0 3 46193.0000 46100.3921 0.20% - 0s 0 0 46100.8111 0 4 46193.0000 46100.8111 0.20% - 0s 0 0 46100.8264 0 4 46193.0000 46100.8264 0.20% - 0s 0 0 46100.8485 0 2 46193.0000 46100.8485 0.20% - 0s 0 0 46100.8485 0 8 46193.0000 46100.8485 0.20% - 0s 0 0 46100.8485 0 4 46193.0000 46100.8485 0.20% - 0s 0 0 46100.8485 0 3 46193.0000 46100.8485 0.20% - 0s 0 0 46100.8485 0 3 46193.0000 46100.8485 0.20% - 0s 0 0 46100.8485 0 3 46193.0000 46100.8485 0.20% - 0s 0 0 46100.8485 0 2 46193.0000 46100.8485 0.20% - 0s 0 2 46106.0000 0 2 46193.0000 46106.0000 0.19% - 0s Cutting planes: Implied bound: 48 Flow cover: 2 Explored 5 nodes (1977 simplex iterations) in 0.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.619300000000e+04, best bound 4.619031914894e+04, gap 0.0058%