Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:51 2013 Optimize a model with 330 rows, 9030 columns and 18030 nonzeros Presolve time: 0.01s Presolved: 330 rows, 9030 columns, 18030 nonzeros Variable types: 9000 continuous, 30 integer (30 binary) Root relaxation: objective 2.814035e+04, 354 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28140.3524 0 9 - 28140.3524 - - 0s H 0 0 28539.000000 28140.3524 1.40% - 0s H 0 0 28418.000000 28140.3524 0.98% - 0s 0 0 28382.0923 0 2 28418.0000 28382.0923 0.13% - 0s 0 0 28385.8671 0 1 28418.0000 28385.8671 0.11% - 0s H 0 0 28399.291139 28385.8671 0.05% - 0s * 0 0 0 28386.000000 28386.0000 0.0% - 0s Cutting planes: Implied bound: 63 Flow cover: 10 Explored 0 nodes (462 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.838600000000e+04, best bound 2.838600000000e+04, gap 0.0%