Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:34:29 2012 Optimize a model with 3695 rows, 1980 columns and 12846 nonzeros Presolve removed 442 rows and 2 columns Presolve time: 0.10s Presolved: 3297 rows, 1978 columns, 13578 nonzeros Variable types: 0 continuous, 1978 integer (1978 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 3.000000e+00, 2352 iterations, 0.13 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 (6271 simplex iterations) in 0.54 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%