Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:13:13 2013 Optimize a model with 26622 rows, 26112 columns and 104142 nonzeros Presolve removed 51 rows and 0 columns Presolve time: 0.12s Presolved: 26571 rows, 26112 columns, 104091 nonzeros Variable types: 26061 continuous, 51 integer (51 binary) Root relaxation: objective 4.517219e+04, 3112 iterations, 0.69 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 45172.1871 0 41 - 45172.1871 - - 0s H 0 0 57719.000000 45172.1871 21.7% - 1s 0 0 50293.3905 0 10 57719.0000 50293.3905 12.9% - 3s H 0 0 55469.000000 50293.3905 9.33% - 3s H 0 0 55142.000000 50293.3905 8.79% - 3s 0 0 51643.3509 0 6 55142.0000 51643.3509 6.34% - 3s H 0 0 54061.000000 51643.3509 4.47% - 3s H 0 0 51807.000000 51643.3509 0.32% - 3s 0 0 51653.2922 0 5 51807.0000 51653.2922 0.30% - 4s 0 2 51655.6655 0 5 51807.0000 51655.6655 0.29% - 4s Cutting planes: Gomory: 1 Implied bound: 46 Explored 14 nodes (6903 simplex iterations) in 4.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.180700000000e+04, best bound 5.180700000000e+04, gap 0.0%