Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012 Optimize a model with 106 rows, 62 columns and 212 nonzeros Presolve removed 60 rows and 29 columns Presolve time: 0.00s Presolved: 46 rows, 33 columns, 96 nonzeros Variable types: 0 continuous, 33 integer (33 binary) Found heuristic solution: objective 30.0000000 Root relaxation: cutoff, 40 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 30.00000 30.99997 3.33% - 0s Explored 0 nodes (40 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0%