Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:57 2013 Optimize a model with 9360 rows, 9060 columns and 36060 nonzeros Presolve removed 30 rows and 0 columns Presolve time: 0.04s Presolved: 9330 rows, 9060 columns, 36030 nonzeros Variable types: 9030 continuous, 30 integer (30 binary) Root relaxation: objective 2.766397e+04, 1240 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 27663.9725 0 22 - 27663.9725 - - 0s H 0 0 31319.000000 27663.9725 11.7% - 0s 0 0 30173.4857 0 2 31319.0000 30173.4857 3.66% - 0s H 0 0 30402.485714 30173.4857 0.75% - 0s H 0 0 30241.000000 30173.4857 0.22% - 0s H 0 0 30195.000000 30173.4857 0.07% - 0s 0 0 30173.5714 0 1 30195.0000 30173.5714 0.07% - 0s * 0 0 0 30185.000000 30185.0000 0.0% - 0s Cutting planes: Implied bound: 21 Explored 0 nodes (1648 simplex iterations) in 0.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.018500000000e+04, best bound 3.018500000000e+04, gap 0.0%