Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:25:13 2013 Optimize a model with 627 rows, 32547 columns and 65037 nonzeros Presolve time: 0.04s Presolved: 627 rows, 32547 columns, 65037 nonzeros Variable types: 32490 continuous, 57 integer (57 binary) Root relaxation: objective 6.078669e+04, 1281 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 60786.6914 0 4 - 60786.6914 - - 0s H 0 0 62780.000000 60786.6914 3.18% - 0s 0 0 61058.2131 0 5 62780.0000 61058.2131 2.74% - 0s 0 0 61072.9871 0 2 62780.0000 61072.9871 2.72% - 0s 0 0 61073.2877 0 2 62780.0000 61073.2877 2.72% - 0s 0 0 61075.6839 0 2 62780.0000 61075.6839 2.71% - 0s 0 0 61077.6069 0 2 62780.0000 61077.6069 2.71% - 0s 0 0 61077.6069 0 2 62780.0000 61077.6069 2.71% - 0s 0 0 61078.1272 0 1 62780.0000 61078.1272 2.71% - 0s H 0 0 61751.508671 61078.1272 1.09% - 0s H 0 0 61653.000000 61078.1272 0.93% - 0s 0 0 61078.1272 0 1 61653.0000 61078.1272 0.93% - 0s 0 0 61078.1272 0 4 61653.0000 61078.1272 0.93% - 0s 0 0 61078.1272 0 5 61653.0000 61078.1272 0.93% - 0s 0 0 61078.1272 0 2 61653.0000 61078.1272 0.93% - 0s 0 0 61078.1272 0 2 61653.0000 61078.1272 0.93% - 1s 0 0 61078.1272 0 2 61653.0000 61078.1272 0.93% - 1s 0 0 61078.1272 0 2 61653.0000 61078.1272 0.93% - 1s 0 0 61078.1272 0 2 61653.0000 61078.1272 0.93% - 1s 0 0 61078.1272 0 2 61653.0000 61078.1272 0.93% - 1s 0 0 61078.1272 0 1 61653.0000 61078.1272 0.93% - 1s H 0 0 61651.000000 61078.1272 0.93% - 1s 0 0 61078.1272 0 1 61651.0000 61078.1272 0.93% - 1s 0 2 61080.4211 0 1 61651.0000 61080.4211 0.93% - 1s * 6 3 5 61440.000000 61422.6069 0.03% 78.5 1s Cutting planes: Implied bound: 65 Flow cover: 1 Explored 10 nodes (3394 simplex iterations) in 1.55 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.144000000000e+04, best bound 6.144000000000e+04, gap 0.0%