Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:13 2013 Optimize a model with 9982 rows, 9672 columns and 38502 nonzeros Presolve removed 31 rows and 0 columns Presolve time: 0.04s Presolved: 9951 rows, 9672 columns, 38471 nonzeros Variable types: 9641 continuous, 31 integer (31 binary) Root relaxation: objective 2.843600e+04, 1146 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28436.0015 0 26 - 28436.0015 - - 0s H 0 0 33041.000000 28436.0015 13.9% - 0s 0 0 30475.6364 0 1 33041.0000 30475.6364 7.76% - 0s H 0 0 30643.363636 30475.6364 0.55% - 0s H 0 0 30607.000000 30475.6364 0.43% - 0s H 0 0 30486.000000 30475.6364 0.03% - 0s Cutting planes: Implied bound: 22 Explored 0 nodes (1524 simplex iterations) in 0.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.048600000000e+04, best bound 3.048600000000e+04, gap 0.0%