Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:57 2013 Optimize a model with 280 rows, 3650 columns and 22150 nonzeros Presolve removed 10 rows and 570 columns Presolve time: 0.03s Presolved: 270 rows, 3080 columns, 20150 nonzeros Variable types: 3010 continuous, 70 integer (70 binary) Root relaxation: objective 1.931845e+04, 170 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 19318.446870 19318.4469 0.0% - 0s Explored 0 nodes (170 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.931844686955e+04, best bound 1.931844686955e+04, gap 0.0%