Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:19:14 2012 Optimize a model with 5306 rows, 3782 columns and 19396 nonzeros Presolve removed 677 rows and 246 columns Presolve time: 0.14s Presolved: 4629 rows, 3536 columns, 17353 nonzeros Variable types: 0 continuous, 3536 integer (3536 binary) Found heuristic solution: objective 61.0000000 Root relaxation: objective 3.000000e+00, 2993 iterations, 0.17 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% - 1s Explored 0 nodes (11432 simplex iterations) in 1.01 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%