Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:16:14 2013 Optimize a model with 90 rows, 280 columns and 585 nonzeros Presolve removed 20 rows and 15 columns Presolve time: 0.00s Presolved: 70 rows, 265 columns, 545 nonzeros Variable types: 260 continuous, 5 integer (5 binary) Root relaxation: objective 1.204447e+04, 36 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 1 - 12044.4669 - - 0s H 0 0 12089.743969 12044.4669 0.37% - 0s Explored 0 nodes (36 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.208974396881e+04, best bound 1.208974396881e+04, gap 0.0%