Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:51:36 2012 Optimize a model with 2922 rows, 109 columns and 5844 nonzeros Presolve removed 2098 rows and 0 columns Presolve time: 0.08s Presolved: 824 rows, 109 columns, 5537 nonzeros Variable types: 0 continuous, 109 integer (109 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 1.496794e+01, 462 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.96794 0 106 9.00000 14.96794 66.3% - 0s 0 0 14.60513 0 107 9.00000 14.60513 62.3% - 0s 0 0 14.55670 0 108 9.00000 14.55670 61.7% - 0s 0 0 14.54491 0 109 9.00000 14.54491 61.6% - 0s 0 0 14.54174 0 109 9.00000 14.54174 61.6% - 0s 0 0 14.52994 0 108 9.00000 14.52994 61.4% - 0s 0 0 14.52804 0 108 9.00000 14.52804 61.4% - 1s 0 0 14.52716 0 108 9.00000 14.52716 61.4% - 1s 0 0 14.51045 0 109 9.00000 14.51045 61.2% - 1s 0 0 14.49291 0 108 9.00000 14.49291 61.0% - 1s 0 0 14.48987 0 109 9.00000 14.48987 61.0% - 1s 0 0 14.48861 0 109 9.00000 14.48861 61.0% - 1s 0 0 14.48835 0 109 9.00000 14.48835 61.0% - 2s 0 0 14.47950 0 109 9.00000 14.47950 60.9% - 2s 0 0 14.47934 0 109 9.00000 14.47934 60.9% - 2s 0 0 14.47928 0 109 9.00000 14.47928 60.9% - 2s 0 0 14.47925 0 109 9.00000 14.47925 60.9% - 2s 0 2 14.47875 0 109 9.00000 14.47875 60.9% - 2s * 189 40 15 10.0000000 12.88190 28.8% 60.5 3s Cutting planes: Clique: 67 Explored 246 nodes (14796 simplex iterations) in 3.68 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%