Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:00:39 2013 Optimize a model with 5 rows, 500 columns and 2500 nonzeros Presolve time: 0.01s Presolved: 5 rows, 500 columns, 2500 nonzeros Variable types: 0 continuous, 500 integer (500 binary) Found heuristic solution: objective 294685.00000 Root relaxation: objective 3.081576e+05, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 308157.597 0 5 294685.000 308157.597 4.57% - 0s H 0 0 307783.00000 308157.597 0.12% - 0s 0 0 308156.205 0 6 307783.000 308156.205 0.12% - 0s 0 0 308155.099 0 9 307783.000 308155.099 0.12% - 0s H 0 0 307980.00000 308155.099 0.06% - 0s 0 0 308155.099 0 5 307980.000 308155.099 0.06% - 0s 0 0 308155.099 0 8 307980.000 308155.099 0.06% - 0s 0 2 308155.012 0 8 307980.000 308155.012 0.06% - 0s H 605 502 307990.00000 308152.904 0.05% 1.7 0s H 722 555 308015.00000 308152.904 0.04% 2.1 0s H 1106 709 308017.00000 308152.904 0.04% 2.7 0s H 1953 934 308048.00000 308152.796 0.03% 2.5 0s H18994 13620 308055.00000 308143.690 0.03% 2.3 1s 77992 48224 308100.385 82 5 308055.000 308139.844 0.03% 2.3 5s H106950 59150 308059.00000 308137.250 0.03% 2.2 6s H131971 60874 308078.00000 308135.610 0.02% 2.3 7s 169330 75637 308113.033 82 5 308078.000 308135.574 0.02% 2.3 10s 268610 107823 308125.538 62 5 308078.000 308130.933 0.02% 2.3 15s H351743 133290 308086.00000 308128.103 0.01% 2.3 19s 369085 142101 308114.890 71 5 308086.000 308127.529 0.01% 2.3 20s 470748 190437 308095.565 74 5 308086.000 308124.916 0.01% 2.3 25s 571705 233598 308096.328 69 5 308086.000 308122.910 0.01% 2.4 30s 675366 274487 308113.876 66 5 308086.000 308121.252 0.01% 2.4 35s 778316 310793 308116.016 65 5 308086.000 308119.857 0.01% 2.4 40s 881568 343660 308095.225 80 5 308086.000 308118.627 0.01% 2.4 45s 985782 374300 cutoff 77 308086.000 308117.547 0.01% 2.4 50s Cutting planes: Gomory: 3 Cover: 1 MIR: 8 Explored 1063643 nodes (2530042 simplex iterations) in 53.66 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.080860000000e+05, best bound 3.081160000000e+05, gap 0.0097%