Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:01 2012 Optimize a model with 153 rows, 71 columns and 306 nonzeros Presolve removed 89 rows and 28 columns Presolve time: 0.00s Presolved: 64 rows, 43 columns, 136 nonzeros Variable types: 0 continuous, 43 integer (43 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 3.400000e+01, 51 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 34.0000000 34.00000 0.0% - 0s Explored 0 nodes (71 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%