Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:02:35 2013 Optimize a model with 231 rows, 121 columns and 726 nonzeros Presolve removed 68 rows and 60 columns Presolve time: 0.00s Presolved: 163 rows, 61 columns, 545 nonzeros Variable types: 7 continuous, 54 integer (54 binary) Found heuristic solution: objective 1037.0000000 Root relaxation: objective 7.350242e+02, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 735.02424 0 5 1037.00000 735.02424 29.1% - 0s H 0 0 747.0000000 735.02424 1.60% - 0s 0 0 739.19619 0 11 747.00000 739.19619 1.04% - 0s 0 0 741.76802 0 16 747.00000 741.76802 0.70% - 0s 0 0 741.76802 0 5 747.00000 741.76802 0.70% - 0s H 0 0 745.0000000 741.76802 0.43% - 0s 0 0 741.76802 0 15 745.00000 741.76802 0.43% - 0s 0 0 742.18207 0 11 745.00000 742.18207 0.38% - 0s H 0 0 743.0000000 742.18207 0.11% - 0s Cutting planes: MIR: 9 GUB cover: 1 Explored 0 nodes (97 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.430000000000e+02, best bound 7.430000000000e+02, gap 0.0%