Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:40 2012 Optimize a model with 2255 rows, 1722 columns and 8323 nonzeros Presolve removed 248 rows and 82 columns Presolve time: 0.04s Presolved: 2007 rows, 1640 columns, 7626 nonzeros Variable types: 0 continuous, 1640 integer (1640 binary) Found heuristic solution: objective 23.0000000 Root relaxation: objective 3.000000e+00, 1504 iterations, 0.04 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% - 0s Explored 0 nodes (2131 simplex iterations) in 0.10 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%