Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:31:59 2012 Optimize a model with 82 rows, 54 columns and 164 nonzeros Presolve removed 63 rows and 37 columns Presolve time: 0.00s Presolved: 19 rows, 17 columns, 38 nonzeros Variable types: 0 continuous, 17 integer (17 binary) Found heuristic solution: objective 27.0000000 Root relaxation: cutoff, 17 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 27.00000 27.99997 3.70% - 0s Explored 0 nodes (17 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.700000000000e+01, best bound 2.700000000000e+01, gap 0.0%