Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:02 2012 Optimize a model with 153 rows, 74 columns and 306 nonzeros Presolve removed 53 rows and 16 columns Presolve time: 0.00s Presolved: 100 rows, 58 columns, 216 nonzeros Variable types: 0 continuous, 58 integer (58 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.600000e+01, 54 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 36.0000000 36.00000 0.0% - 0s Explored 0 nodes (54 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%