Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:54:11 2013 Optimize a model with 341 rows, 9641 columns and 19251 nonzeros Presolve time: 0.01s Presolved: 341 rows, 9641 columns, 19251 nonzeros Variable types: 9610 continuous, 31 integer (31 binary) Root relaxation: objective 2.832074e+04, 375 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 28320.7354 0 8 - 28320.7354 - - 0s H 0 0 29073.000000 28320.7354 2.59% - 0s H 0 0 28657.000000 28320.7354 1.17% - 0s 0 0 28598.3265 0 3 28657.0000 28598.3265 0.20% - 0s 0 0 28618.5630 0 3 28657.0000 28618.5630 0.13% - 0s 0 0 28621.1020 0 1 28657.0000 28621.1020 0.13% - 0s 0 0 28655.3111 0 3 28657.0000 28655.3111 0.01% - 0s Cutting planes: Implied bound: 50 Explored 0 nodes (518 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.865700000000e+04, best bound 2.865531111111e+04, gap 0.0059%