Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:51 2013 Optimize a model with 7072 rows, 6812 columns and 27092 nonzeros Presolve removed 26 rows and 0 columns Presolve time: 0.03s Presolved: 7046 rows, 6812 columns, 27066 nonzeros Variable types: 6786 continuous, 26 integer (26 binary) Root relaxation: objective 3.062560e+04, 1323 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 30625.5968 0 22 - 30625.5968 - - 0s H 0 0 32814.000000 30625.5968 6.67% - 0s 0 0 32440.4848 0 1 32814.0000 32440.4848 1.14% - 0s H 0 0 32455.242424 32440.4848 0.05% - 0s H 0 0 32447.000000 32440.4848 0.02% - 0s 0 0 32444.8857 0 1 32447.0000 32444.8857 0.01% - 0s Cutting planes: Implied bound: 22 Explored 0 nodes (1661 simplex iterations) in 0.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.244700000000e+04, best bound 3.244488571429e+04, gap 0.0065%