Gurobi 5.0.1 (linux64) logging started Tue Nov 20 12:32:03 2012 Optimize a model with 147 rows, 79 columns and 294 nonzeros Presolve removed 64 rows and 25 columns Presolve time: 0.00s Presolved: 83 rows, 54 columns, 169 nonzeros Variable types: 0 continuous, 54 integer (54 binary) Found heuristic solution: objective 36.0000000 Root relaxation: objective 4.000000e+01, 62 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 40.00000 0 48 36.00000 40.00000 11.1% - 0s 0 0 39.00000 0 22 36.00000 39.00000 8.33% - 0s H 0 0 39.0000000 39.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 4 Explored 0 nodes (91 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.900000000000e+01, best bound 3.900000000000e+01, gap 0.0%