Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:14:53 2012 Optimize a model with 3158 rows, 1560 columns and 10840 nonzeros Presolve removed 704 rows and 2 columns Presolve time: 0.10s Presolved: 2493 rows, 1558 columns, 10636 nonzeros Variable types: 0 continuous, 1558 integer (1558 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 3.000000e+00, 2004 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 (6036 simplex iterations) in 0.58 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%