Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:00 2012 Optimize a model with 93 rows, 64 columns and 186 nonzeros Presolve removed 83 rows and 55 columns Presolve time: 0.00s Presolved: 10 rows, 9 columns, 20 nonzeros Variable types: 0 continuous, 9 integer (9 binary) Found heuristic solution: objective 33.0000000 Root relaxation: cutoff, 9 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 33.00000 33.99997 3.03% - 0s Explored 0 nodes (9 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%