Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:57:01 2012 Optimize a model with 3499 rows, 118 columns and 6998 nonzeros Presolve removed 2497 rows and 0 columns Presolve time: 0.11s Presolved: 1002 rows, 118 columns, 7025 nonzeros Variable types: 0 continuous, 118 integer (118 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.572264e+01, 520 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 15.72264 0 113 7.00000 15.72264 125% - 0s H 0 0 8.0000000 15.72264 96.5% - 0s 0 0 15.28599 0 116 8.00000 15.28599 91.1% - 0s H 0 0 9.0000000 15.28599 69.8% - 0s 0 0 15.15548 0 118 9.00000 15.15548 68.4% - 0s 0 0 15.11771 0 118 9.00000 15.11771 68.0% - 0s 0 0 15.10726 0 117 9.00000 15.10726 67.9% - 0s 0 0 15.09441 0 118 9.00000 15.09441 67.7% - 1s 0 0 15.09084 0 118 9.00000 15.09084 67.7% - 1s 0 0 15.08979 0 118 9.00000 15.08979 67.7% - 1s 0 0 15.08964 0 118 9.00000 15.08964 67.7% - 1s 0 2 15.08824 0 118 9.00000 15.08824 67.6% - 1s * 361 50 8 10.0000000 12.06365 20.6% 64.4 3s Cutting planes: Clique: 103 Explored 412 nodes (25341 simplex iterations) in 3.58 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%