Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:54:24 2012 Optimize a model with 18723 rows, 22952 columns and 78367 nonzeros Presolve removed 304 rows and 2 columns Presolve time: 0.37s Presolved: 18570 rows, 22950 columns, 100169 nonzeros Variable types: 0 continuous, 22950 integer (22950 binary) Found heuristic solution: objective 151.0000000 Root relaxation: objective 3.000000e+00, 11360 iterations, 0.88 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 2s Explored 0 nodes (31784 simplex iterations) in 2.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%