Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:32 2013 Optimize a model with 352 rows, 10272 columns and 20512 nonzeros Presolve time: 0.02s Presolved: 352 rows, 10272 columns, 20512 nonzeros Variable types: 10240 continuous, 32 integer (32 binary) Root relaxation: objective 2.868824e+04, 383 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28688.2422 0 6 - 28688.2422 - - 0s H 0 0 29993.000000 28688.2422 4.35% - 0s H 0 0 29830.000000 28688.2422 3.83% - 0s H 0 0 28934.000000 28688.2422 0.85% - 0s 0 0 28813.2042 0 3 28934.0000 28813.2042 0.42% - 0s 0 0 28830.4914 0 2 28934.0000 28830.4914 0.36% - 0s 0 0 28831.8988 0 2 28934.0000 28831.8988 0.35% - 0s 0 0 28835.9245 0 2 28934.0000 28835.9245 0.34% - 0s 0 0 28835.9245 0 2 28934.0000 28835.9245 0.34% - 0s 0 0 28836.3924 0 3 28934.0000 28836.3924 0.34% - 0s 0 0 28837.8411 0 2 28934.0000 28837.8411 0.33% - 0s 0 0 28837.8411 0 2 28934.0000 28837.8411 0.33% - 0s 0 0 28837.8411 0 2 28934.0000 28837.8411 0.33% - 0s 0 0 28837.8552 0 2 28934.0000 28837.8552 0.33% - 0s 0 0 28919.0000 0 1 28934.0000 28919.0000 0.05% - 0s Cutting planes: Implied bound: 31 Explored 0 nodes (592 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.893400000000e+04, best bound 2.893400000000e+04, gap 0.0%