Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:18:42 2013 Optimize a model with 29808 rows, 29268 columns and 116748 nonzeros Presolve removed 54 rows and 0 columns Presolve time: 0.13s Presolved: 29754 rows, 29268 columns, 116694 nonzeros Variable types: 29214 continuous, 54 integer (54 binary) Root relaxation: objective 4.157957e+04, 3056 iterations, 0.94 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 41579.5718 0 39 - 41579.5718 - - 1s H 0 0 55524.000000 41579.5718 25.1% - 1s 0 0 47359.0320 0 15 55524.0000 47359.0320 14.7% - 3s H 0 0 54117.000000 47359.0320 12.5% - 3s 0 0 49073.3356 0 6 54117.0000 49073.3356 9.32% - 4s H 0 0 52516.563555 49073.3356 6.56% - 4s H 0 0 51919.000000 49073.3356 5.48% - 4s 0 0 49074.2035 0 4 51919.0000 49074.2035 5.48% - 4s H 0 0 50855.217290 49074.2035 3.50% - 4s H 0 0 50394.000000 49074.2035 2.62% - 4s H 0 0 49222.000000 49074.2035 0.30% - 4s 0 1 49134.7199 0 4 49222.0000 49134.7199 0.18% - 5s H 5 3 49220.500000 49160.3881 0.12% 68.6 5s * 6 3 5 49212.000000 49160.3881 0.10% 78.7 5s * 7 2 6 49199.000000 49160.3881 0.08% 71.4 5s Cutting planes: Implied bound: 47 Explored 10 nodes (6570 simplex iterations) in 5.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.919900000000e+04, best bound 4.919900000000e+04, gap 0.0%