Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:36 2013 Optimize a model with 140 rows, 800 columns and 5125 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.01s Presolved: 135 rows, 795 columns, 4620 nonzeros Variable types: 760 continuous, 35 integer (35 binary) Root relaxation: objective 1.204447e+04, 54 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12044.4669 0 3 - 12044.4669 - - 0s 0 0 12044.9558 0 4 - 12044.9558 - - 0s 0 0 12096.0894 0 3 - 12096.0894 - - 0s 0 0 12097.3772 0 3 - 12097.3772 - - 0s 0 0 12097.3772 0 3 - 12097.3772 - - 0s H 0 0 12349.632285 12097.3772 2.04% - 0s 0 0 12097.3772 0 2 12349.6323 12097.3772 2.04% - 0s 0 0 12097.4446 0 4 12349.6323 12097.4446 2.04% - 0s 0 0 12097.4446 0 4 12349.6323 12097.4446 2.04% - 0s 0 2 12097.4449 0 4 12349.6323 12097.4449 2.04% - 0s * 13 6 12 12190.225199 12097.6819 0.76% 5.6 0s H 27 6 12107.894243 12097.7724 0.08% 4.6 0s * 30 0 3 12097.772419 12097.7724 0.0% 4.3 0s Cutting planes: Gomory: 1 Flow cover: 1 Explored 31 nodes (349 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.209777241860e+04, best bound 1.209777241860e+04, gap 0.0%