Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:59:48 2013 Optimize a model with 17302 rows, 16892 columns and 67322 nonzeros Presolve removed 41 rows and 0 columns Presolve time: 0.07s Presolved: 17261 rows, 16892 columns, 67281 nonzeros Variable types: 16851 continuous, 41 integer (41 binary) Root relaxation: objective 3.541144e+04, 2092 iterations, 0.42 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35411.4442 0 40 - 35411.4442 - - 0s H 0 0 45131.000000 35411.4442 21.5% - 0s 0 0 41760.0967 0 3 45131.0000 41760.0967 7.47% - 1s H 0 0 43645.202508 41760.0967 4.32% - 1s H 0 0 43312.000000 41760.0967 3.58% - 1s H 0 0 41775.000000 41760.0967 0.04% - 1s 0 0 41771.7273 0 1 41775.0000 41771.7273 0.01% - 1s Cutting planes: Implied bound: 34 Explored 0 nodes (3200 simplex iterations) in 1.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.177500000000e+04, best bound 4.177172727273e+04, gap 0.0078%