Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:06:41 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 290179.00000 Root relaxation: objective 3.028968e+05, 24 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 302896.761 0 5 290179.000 302896.761 4.38% - 0s H 0 0 302561.00000 302896.761 0.11% - 0s 0 0 302894.920 0 8 302561.000 302894.920 0.11% - 0s H 0 0 302723.00000 302894.920 0.06% - 0s 0 0 302894.920 0 5 302723.000 302894.920 0.06% - 0s 0 0 302894.920 0 8 302723.000 302894.920 0.06% - 0s 0 2 302894.836 0 8 302723.000 302894.836 0.06% - 0s H 275 235 302745.00000 302891.342 0.05% 1.9 0s H 605 501 302751.00000 302890.228 0.05% 1.9 0s H 634 495 302755.00000 302890.228 0.04% 2.0 0s H 3473 1571 302809.00000 302886.998 0.03% 2.4 0s 89072 48266 302850.440 54 5 302809.000 302873.621 0.02% 2.2 5s 192757 107946 302858.109 57 5 302809.000 302867.752 0.02% 2.2 10s 295374 174105 302859.748 63 5 302809.000 302864.837 0.02% 2.3 15s 399555 237978 cutoff 64 302809.000 302862.833 0.02% 2.3 20s H406898 223895 302818.00000 302862.709 0.01% 2.3 20s 502654 272203 302850.165 64 5 302818.000 302860.978 0.01% 2.3 25s 608003 322653 302851.202 57 5 302818.000 302859.428 0.01% 2.3 30s 713522 370475 302843.529 58 5 302818.000 302858.106 0.01% 2.3 35s H810408 334751 302828.00000 302857.052 0.01% 2.3 39s Cutting planes: Gomory: 3 Cover: 2 MIR: 5 Explored 810408 nodes (1855080 simplex iterations) in 39.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.028280000000e+05, best bound 3.028570000000e+05, gap 0.0096%