Gurobi 5.0.1 (linux64) logging started Fri Nov 16 07:37:25 2012 Optimize a model with 11036 rows, 3906 columns and 36766 nonzeros Presolve time: 0.10s Presolved: 11036 rows, 3906 columns, 37031 nonzeros Variable types: 0 continuous, 3906 integer (3906 binary) Found heuristic solution: objective 40.0000000 Root relaxation: objective 2.000000e+00, 4626 iterations, 0.33 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 124 40.00000 2.00000 95.0% - 2s H 0 0 13.0000000 2.00000 84.6% - 2s H 0 0 5.0000000 2.00000 60.0% - 2s 0 0 2.00000 0 124 5.00000 2.00000 60.0% - 3s 0 0 2.00000 0 124 5.00000 2.00000 60.0% - 7s 0 0 2.00000 0 124 5.00000 2.00000 60.0% - 12s 0 0 2.00000 0 124 5.00000 2.00000 60.0% - 16s 0 0 2.00000 0 124 5.00000 2.00000 60.0% - 21s 0 0 2.00000 0 124 5.00000 2.00000 60.0% - 25s H 0 0 4.0000000 2.00000 50.0% - 38s 0 2 2.00000 0 124 4.00000 2.00000 50.0% - 38s 1 3 3.00000 1 700 4.00000 2.00000 50.0% 43402 51s 2 4 3.00000 1 621 4.00000 3.00000 25.0% 28280 56s 15 5 cutoff 6 4.00000 3.00000 25.0% 4865 60s 44 4 cutoff 5 4.00000 3.00000 25.0% 2246 65s 61 3 cutoff 6 4.00000 3.00000 25.0% 1940 70s 74 4 3.00000 5 366 4.00000 3.00000 25.0% 1829 75s 90 2 cutoff 9 4.00000 3.00000 25.0% 1815 80s 98 0 cutoff 7 4.00000 4.00000 0.0% 1892 85s Cutting planes: Clique: 145 Explored 99 nodes (260636 simplex iterations) in 85.49 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%