Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:57:31 2013 Optimize a model with 418 rows, 14478 columns and 28918 nonzeros Presolve time: 0.02s Presolved: 418 rows, 14478 columns, 28918 nonzeros Variable types: 14440 continuous, 38 integer (38 binary) Root relaxation: objective 4.056136e+04, 752 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 40561.3639 0 4 - 40561.3639 - - 0s H 0 0 41316.000000 40561.3639 1.83% - 0s 0 0 40835.3417 0 2 41316.0000 40835.3417 1.16% - 0s H 0 0 40843.000000 40835.3417 0.02% - 0s 0 0 40838.2553 0 1 40843.0000 40838.2553 0.01% - 0s 0 0 40838.2553 0 1 40843.0000 40838.2553 0.01% - 0s 0 0 40838.2553 0 1 40843.0000 40838.2553 0.01% - 0s 0 0 40838.2553 0 1 40843.0000 40838.2553 0.01% - 0s 0 0 40838.2553 0 1 40843.0000 40838.2553 0.01% - 0s 0 0 40839.8889 0 1 40843.0000 40839.8889 0.01% - 0s Cutting planes: Implied bound: 15 Explored 0 nodes (840 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.084300000000e+04, best bound 4.083988888889e+04, gap 0.0076%