Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:04:23 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 286382.00000 Root relaxation: objective 3.026618e+05, 21 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 302661.750 0 5 286382.000 302661.750 5.68% - 0s H 0 0 302276.00000 302661.750 0.13% - 0s 0 0 302659.874 0 9 302276.000 302659.874 0.13% - 0s H 0 0 302482.00000 302659.874 0.06% - 0s 0 0 302659.874 0 5 302482.000 302659.874 0.06% - 0s 0 0 302659.874 0 9 302482.000 302659.874 0.06% - 0s 0 2 302658.641 0 9 302482.000 302658.641 0.06% - 0s H 633 508 302528.00000 302654.543 0.04% 1.9 0s H 2027 1118 302536.00000 302652.030 0.04% 2.7 0s H11182 7596 302547.00000 302644.080 0.03% 2.4 1s 66711 32322 302558.178 70 5 302547.000 302635.170 0.03% 2.3 5s 154082 74678 302590.649 72 5 302547.000 302623.311 0.03% 2.3 10s 241847 133016 302557.834 90 5 302547.000 302618.094 0.02% 2.4 15s 329613 187792 302591.094 77 5 302547.000 302614.819 0.02% 2.4 20s H339987 189075 302552.00000 302614.501 0.02% 2.4 20s 418427 232973 302587.803 74 5 302552.000 302612.134 0.02% 2.4 25s 507771 280267 cutoff 73 302552.000 302609.864 0.02% 2.4 30s H515841 263460 302560.00000 302609.681 0.02% 2.4 30s 596249 297332 302588.714 77 5 302560.000 302607.655 0.02% 2.4 35s 686504 332502 302590.592 87 5 302560.000 302605.709 0.02% 2.4 40s 776995 364840 302582.719 83 5 302560.000 302604.003 0.01% 2.4 45s 867672 394890 302588.321 71 5 302560.000 302602.483 0.01% 2.4 50s 959423 422352 302598.265 93 5 302560.000 302601.065 0.01% 2.4 55s 1050597 447605 302570.699 91 5 302560.000 302599.803 0.01% 2.4 60s 1142514 470291 302581.837 77 5 302560.000 302598.572 0.01% 2.4 65s 1235067 490819 302587.840 74 5 302560.000 302597.425 0.01% 2.4 70s 1328532 509347 302573.636 72 5 302560.000 302596.333 0.01% 2.4 75s 1421182 525337 302578.359 79 5 302560.000 302595.307 0.01% 2.4 80s 1515177 539686 cutoff 84 302560.000 302594.323 0.01% 2.4 85s H1599469 420363 302571.00000 302593.454 0.01% 2.4 89s Cutting planes: Gomory: 5 Cover: 2 MIR: 5 Explored 1599469 nodes (3855555 simplex iterations) in 89.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.025710000000e+05, best bound 3.025930000000e+05, gap 0.0073%