Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:52:28 2013 Optimize a model with 6048 rows, 5808 columns and 23088 nonzeros Presolve removed 24 rows and 0 columns Presolve time: 0.02s Presolved: 6024 rows, 5808 columns, 23064 nonzeros Variable types: 5784 continuous, 24 integer (24 binary) Root relaxation: objective 1.793387e+04, 581 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17933.8707 0 16 - 17933.8707 - - 0s H 0 0 18999.000000 17933.8707 5.61% - 0s 0 0 18654.9412 0 1 18999.0000 18654.9412 1.81% - 0s H 0 0 18934.019608 18654.9412 1.47% - 0s H 0 0 18683.000000 18654.9412 0.15% - 0s 0 2 18656.0211 0 1 18683.0000 18656.0211 0.14% - 0s * 2 0 1 18660.000000 18660.0000 0.0% 7.0 0s Cutting planes: Implied bound: 13 Explored 3 nodes (819 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.866000000000e+04, best bound 1.866000000000e+04, gap 0.0%