Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:27 2013 Optimize a model with 8729 rows, 8439 columns and 33669 nonzeros Presolve removed 407 rows and 0 columns Presolve time: 0.05s Presolved: 8322 rows, 8439 columns, 32855 nonzeros Variable types: 8410 continuous, 29 integer (29 binary) Root relaxation: objective 3.542382e+04, 1330 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35423.8221 0 2 - 35423.8221 - - 0s H 0 0 35731.000000 35423.8221 0.86% - 0s H 0 0 35490.000000 35423.8221 0.19% - 0s 0 0 35428.6432 0 2 35490.0000 35428.6432 0.17% - 0s 0 0 35431.2327 0 2 35490.0000 35431.2327 0.17% - 0s 0 0 35455.0216 0 1 35490.0000 35455.0216 0.10% - 0s 0 1 35461.6452 0 1 35490.0000 35461.6452 0.08% - 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 2 nodes (1424 simplex iterations) in 0.34 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.549000000000e+04, best bound 3.549000000000e+04, gap 0.0%