Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:29:57 2013 Optimize a model with 5140 rows, 16020 columns and 42010 nonzeros Presolve removed 20 rows and 30 columns Presolve time: 0.23s Presolved: 5120 rows, 15990 columns, 31980 nonzeros Variable types: 11000 continuous, 4990 integer (4990 binary) Root relaxation: objective 1.931845e+04, 127 iterations, 0.01 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 (127 simplex iterations) in 0.28 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%