Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:19 2013 Optimize a model with 396 rows, 12996 columns and 25956 nonzeros Presolve time: 0.02s Presolved: 396 rows, 12996 columns, 25956 nonzeros Variable types: 12960 continuous, 36 integer (36 binary) Root relaxation: objective 3.311085e+04, 427 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 33110.8522 0 9 - 33110.8522 - - 0s H 0 0 34116.000000 33110.8522 2.95% - 0s H 0 0 33889.000000 33110.8522 2.30% - 0s 0 0 33551.4009 0 5 33889.0000 33551.4009 1.00% - 0s 0 0 33564.6021 0 5 33889.0000 33564.6021 0.96% - 0s 0 0 33571.4897 0 3 33889.0000 33571.4897 0.94% - 0s 0 0 33571.8103 0 2 33889.0000 33571.8103 0.94% - 0s 0 0 33571.8103 0 2 33889.0000 33571.8103 0.94% - 0s H 0 0 33633.000000 33571.8103 0.18% - 0s 0 0 33571.8103 0 9 33633.0000 33571.8103 0.18% - 0s 0 0 33571.8103 0 5 33633.0000 33571.8103 0.18% - 0s 0 0 33571.8103 0 4 33633.0000 33571.8103 0.18% - 0s 0 0 33571.8103 0 3 33633.0000 33571.8103 0.18% - 0s 0 0 33571.8103 0 2 33633.0000 33571.8103 0.18% - 0s 0 2 33572.2198 0 2 33633.0000 33572.2198 0.18% - 0s H 4 2 33621.500000 33591.4829 0.09% 14.0 0s * 6 2 6 33607.000000 33591.4829 0.05% 16.7 0s Cutting planes: Implied bound: 59 Flow cover: 4 Explored 11 nodes (1265 simplex iterations) in 0.38 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%