Gurobi 5.0.1 (linux64) logging started Fri Nov 16 06:21:44 2012 Optimize a model with 10962 rows, 3422 columns and 36076 nonzeros Presolve time: 0.09s Presolved: 10962 rows, 3422 columns, 36367 nonzeros Variable types: 0 continuous, 3422 integer (3422 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 2.000000e+00, 3175 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 116 34.00000 2.00000 94.1% - 0s H 0 0 10.0000000 2.00000 80.0% - 0s H 0 0 5.0000000 2.00000 60.0% - 0s 0 0 2.00000 0 116 5.00000 2.00000 60.0% - 1s 0 0 2.00000 0 116 5.00000 2.00000 60.0% - 5s 0 0 2.00000 0 116 5.00000 2.00000 60.0% - 8s 0 0 2.00000 0 116 5.00000 2.00000 60.0% - 12s 0 0 2.00000 0 116 5.00000 2.00000 60.0% - 16s 0 0 2.00000 0 116 5.00000 2.00000 60.0% - 19s 0 2 2.00000 0 116 5.00000 2.00000 60.0% - 29s 1 3 3.00000 1 502 5.00000 2.00000 60.0% 31061 37s 2 4 3.00000 1 720 5.00000 3.00000 40.0% 22314 42s * 22 7 15 4.0000000 3.00000 25.0% 2277 43s 30 7 3.00000 5 104 4.00000 3.00000 25.0% 1782 45s 46 5 cutoff 5 4.00000 3.00000 25.0% 1654 50s 56 5 3.00000 3 330 4.00000 3.00000 25.0% 1754 55s 66 7 cutoff 8 4.00000 3.00000 25.0% 1855 61s 75 4 cutoff 7 4.00000 3.00000 25.0% 1868 65s 80 3 cutoff 4 4.00000 3.00000 25.0% 1966 70s Cutting planes: Clique: 165 Zero half: 12 Explored 108 nodes (242408 simplex iterations) in 74.78 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%