Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:30 2013 Optimize a model with 100 rows, 305 columns and 690 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.00s Presolved: 95 rows, 300 columns, 660 nonzeros Variable types: 285 continuous, 15 integer (15 binary) Root relaxation: objective 1.291780e+04, 41 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 12917.7960 0 2 - 12917.7960 - - 0s 0 0 12955.8101 0 1 - 12955.8101 - - 0s 0 0 12957.2196 0 2 - 12957.2196 - - 0s * 0 0 0 12964.121773 12964.1218 0.0% - 0s Cutting planes: Flow cover: 1 Explored 0 nodes (69 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296412177304e+04, best bound 1.296412177304e+04, gap 0.0%