Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:38 2012 Optimize a model with 1020 rows, 65 columns and 2040 nonzeros Presolve removed 705 rows and 0 columns Presolve time: 0.02s Presolved: 315 rows, 65 columns, 1887 nonzeros Variable types: 0 continuous, 65 integer (65 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.064738e+01, 166 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10.64738 0 62 8.00000 10.64738 33.1% - 0s H 0 0 9.0000000 10.64738 18.3% - 0s 0 0 10.45624 0 61 9.00000 10.45624 16.2% - 0s 0 0 10.38157 0 63 9.00000 10.38157 15.4% - 0s 0 0 10.32540 0 63 9.00000 10.32540 14.7% - 0s 0 0 10.30494 0 62 9.00000 10.30494 14.5% - 0s 0 0 10.30092 0 64 9.00000 10.30092 14.5% - 0s 0 2 10.30006 0 64 9.00000 10.30006 14.4% - 0s Cutting planes: Clique: 20 Zero half: 5 Explored 7 nodes (507 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%