Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:49:40 2012 Optimize a model with 2677 rows, 104 columns and 5354 nonzeros Presolve removed 1910 rows and 0 columns Presolve time: 0.08s Presolved: 767 rows, 104 columns, 5214 nonzeros Variable types: 0 continuous, 104 integer (104 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.430502e+01, 436 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.30502 0 104 8.00000 14.30502 78.8% - 0s 0 0 14.14908 0 103 8.00000 14.14908 76.9% - 0s 0 0 14.11535 0 102 8.00000 14.11535 76.4% - 0s 0 0 14.02633 0 103 8.00000 14.02633 75.3% - 0s H 0 0 9.0000000 14.02633 55.8% - 0s 0 0 13.99224 0 103 9.00000 13.99224 55.5% - 0s 0 0 13.97382 0 103 9.00000 13.97382 55.3% - 0s 0 0 13.93589 0 103 9.00000 13.93589 54.8% - 0s 0 0 13.83917 0 103 9.00000 13.83917 53.8% - 0s 0 0 13.81503 0 103 9.00000 13.81503 53.5% - 0s 0 0 13.80412 0 103 9.00000 13.80412 53.4% - 1s 0 0 13.79540 0 102 9.00000 13.79540 53.3% - 1s 0 0 13.79350 0 102 9.00000 13.79350 53.3% - 1s 0 0 13.79312 0 102 9.00000 13.79312 53.3% - 1s 0 0 13.79246 0 102 9.00000 13.79246 53.2% - 1s 0 2 13.79176 0 102 9.00000 13.79176 53.2% - 1s Cutting planes: Clique: 69 Zero half: 1 Explored 189 nodes (12623 simplex iterations) in 2.36 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%