Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:29 2013 Optimize a model with 13392 rows, 13032 columns and 51912 nonzeros Presolve removed 36 rows and 0 columns Presolve time: 0.06s Presolved: 13356 rows, 13032 columns, 51876 nonzeros Variable types: 12996 continuous, 36 integer (36 binary) Root relaxation: objective 3.003553e+04, 1374 iterations, 0.23 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 30035.5316 0 29 - 30035.5316 - - 0s H 0 0 36016.000000 30035.5316 16.6% - 0s 0 0 33570.8741 0 3 36016.0000 33570.8741 6.79% - 0s H 0 0 34521.583088 33570.8741 2.75% - 0s H 0 0 33950.000000 33570.8741 1.12% - 0s H 0 0 33633.000000 33570.8741 0.18% - 0s 0 0 33571.8103 0 2 33633.0000 33571.8103 0.18% - 0s 0 2 33572.0154 0 2 33633.0000 33572.0154 0.18% - 1s H 5 4 33623.923077 33592.5000 0.09% 29.4 1s * 6 5 5 33613.000000 33594.4242 0.06% 33.2 1s * 9 2 5 33611.000000 33594.4242 0.05% 30.7 1s * 12 2 5 33607.000000 33600.8648 0.02% 24.9 1s Cutting planes: Implied bound: 28 Explored 15 nodes (2448 simplex iterations) in 1.18 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.360700000000e+04, best bound 3.360700000000e+04, gap 0.0%