Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:52 2012 Optimize a model with 2578 rows, 102 columns and 5156 nonzeros Presolve removed 1869 rows and 0 columns Presolve time: 0.07s Presolved: 709 rows, 102 columns, 4794 nonzeros Variable types: 0 continuous, 102 integer (102 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 1.423308e+01, 380 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.23308 0 98 5.00000 14.23308 185% - 0s H 0 0 6.0000000 14.23308 137% - 0s H 0 0 9.0000000 14.23308 58.1% - 0s 0 0 13.81699 0 100 9.00000 13.81699 53.5% - 0s 0 0 13.76679 0 100 9.00000 13.76679 53.0% - 0s 0 0 13.74526 0 101 9.00000 13.74526 52.7% - 0s 0 0 13.73698 0 101 9.00000 13.73698 52.6% - 0s 0 0 13.73481 0 101 9.00000 13.73481 52.6% - 0s 0 0 13.73411 0 101 9.00000 13.73411 52.6% - 0s 0 0 13.73403 0 101 9.00000 13.73403 52.6% - 0s 0 0 13.73402 0 101 9.00000 13.73402 52.6% - 1s 0 2 13.73193 0 101 9.00000 13.73193 52.6% - 1s * 137 14 6 10.0000000 11.54697 15.5% 64.0 1s Cutting planes: Clique: 74 Zero half: 2 Explored 152 nodes (9687 simplex iterations) in 1.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%