Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:54 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 3.085403e+04, 1315 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 30854.0305 0 19 - 30854.0305 - - 0s H 0 0 33125.000000 30854.0305 6.86% - 0s 0 0 32689.9031 0 2 33125.0000 32689.9031 1.31% - 0s H 0 0 33076.500000 32689.9031 1.17% - 0s H 0 0 32798.000000 32689.9031 0.33% - 0s H 0 0 32722.000000 32689.9031 0.10% - 0s 0 0 32717.4815 0 1 32722.0000 32717.4815 0.01% - 0s 0 0 32721.5000 0 1 32722.0000 32721.5000 0.00% - 0s Cutting planes: Implied bound: 19 Explored 0 nodes (1683 simplex iterations) in 0.45 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.272200000000e+04, best bound 3.272150000000e+04, gap 0.0015%