Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:06 2013 Optimize a model with 242 rows, 4862 columns and 9702 nonzeros Presolve time: 0.01s Presolved: 242 rows, 4862 columns, 9702 nonzeros Variable types: 4840 continuous, 22 integer (22 binary) Root relaxation: objective 2.853288e+04, 319 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28532.8826 0 5 - 28532.8826 - - 0s H 0 0 28706.000000 28532.8826 0.60% - 0s 0 0 28675.8947 0 1 28706.0000 28675.8947 0.10% - 0s H 0 0 28688.000000 28675.8947 0.04% - 0s 0 0 28680.7143 0 1 28688.0000 28680.7143 0.03% - 0s * 0 0 0 28682.000000 28682.0000 0.0% - 0s Cutting planes: Implied bound: 21 Flow cover: 3 Explored 0 nodes (377 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.868200000000e+04, best bound 2.868200000000e+04, gap 0.0%