Gurobi 5.0.1 (linux64) logging started Fri Nov 16 04:50:00 2012 Optimize a model with 7367 rows, 2862 columns and 24751 nonzeros Presolve removed 1696 rows and 0 columns Presolve time: 0.14s Presolved: 5671 rows, 2862 columns, 20776 nonzeros Variable types: 0 continuous, 2862 integer (2862 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 4.000000e+00, 6618 iterations, 0.79 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 4.0000000 4.00000 0.0% - 1s Explored 0 nodes (8239 simplex iterations) in 1.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%