Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:53 2012 Optimize a model with 1247 rows, 70 columns and 2494 nonzeros Presolve removed 878 rows and 0 columns Presolve time: 0.03s Presolved: 369 rows, 70 columns, 2309 nonzeros Variable types: 0 continuous, 70 integer (70 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 1.109214e+01, 188 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 11.09214 0 66 5.00000 11.09214 122% - 0s H 0 0 7.0000000 11.09214 58.5% - 0s 0 0 10.74812 0 66 7.00000 10.74812 53.5% - 0s 0 0 10.53339 0 68 7.00000 10.53339 50.5% - 0s 0 0 10.48453 0 67 7.00000 10.48453 49.8% - 0s 0 0 10.47703 0 68 7.00000 10.47703 49.7% - 0s 0 0 10.46571 0 68 7.00000 10.46571 49.5% - 0s 0 0 10.46387 0 69 7.00000 10.46387 49.5% - 0s 0 0 10.46321 0 68 7.00000 10.46321 49.5% - 0s 0 0 10.46319 0 68 7.00000 10.46319 49.5% - 0s 0 2 10.46166 0 68 7.00000 10.46166 49.5% - 0s * 41 11 8 8.0000000 10.05787 25.7% 37.8 0s Cutting planes: Clique: 35 Zero half: 5 Explored 57 nodes (2325 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%