Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:32 2013 Optimize a model with 319 rows, 8439 columns and 16849 nonzeros Presolve time: 0.01s Presolved: 319 rows, 8439 columns, 16849 nonzeros Variable types: 8410 continuous, 29 integer (29 binary) Root relaxation: objective 2.989730e+04, 437 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 29897.2977 0 5 - 29897.2977 - - 0s H 0 0 30236.000000 29897.2977 1.12% - 0s H 0 0 30011.000000 29897.2977 0.38% - 0s 0 0 29995.4737 0 1 30011.0000 29995.4737 0.05% - 0s 0 0 29995.4737 0 1 30011.0000 29995.4737 0.05% - 0s 0 0 29995.4737 0 5 30011.0000 29995.4737 0.05% - 0s 0 0 29995.4737 0 1 30011.0000 29995.4737 0.05% - 0s 0 0 29995.4737 0 1 30011.0000 29995.4737 0.05% - 0s 0 0 29995.4737 0 1 30011.0000 29995.4737 0.05% - 0s Cutting planes: Implied bound: 25 Flow cover: 2 Explored 0 nodes (929 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.001100000000e+04, best bound 3.001100000000e+04, gap 0.0%