Gurobi 5.0.1 (linux64) logging started Thu Jan 24 19:51:18 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 201731.00000 Root relaxation: objective 2.182827e+05, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 218282.706 0 5 201731.000 218282.706 8.20% - 0s H 0 0 217724.00000 218282.706 0.26% - 0s 0 0 218282.384 0 6 217724.000 218282.384 0.26% - 0s 0 0 218281.845 0 8 217724.000 218281.845 0.26% - 0s H 0 0 218055.00000 218281.845 0.10% - 0s 0 0 218281.845 0 5 218055.000 218281.845 0.10% - 0s 0 0 218281.845 0 8 218055.000 218281.845 0.10% - 0s H 0 0 218107.00000 218281.845 0.08% - 0s 0 2 218281.816 0 8 218107.000 218281.816 0.08% - 0s H 27 27 218132.00000 218280.149 0.07% 2.3 0s H40589 34051 218133.00000 218265.700 0.06% 2.2 3s 58365 43346 218232.480 42 5 218133.000 218265.658 0.06% 2.2 5s H69633 44776 218160.00000 218265.658 0.05% 2.2 5s H95213 53334 218180.00000 218265.658 0.04% 2.2 7s 127149 68025 218249.078 66 5 218180.000 218265.486 0.04% 2.2 10s H158435 78250 218188.00000 218262.007 0.03% 2.2 11s 216600 102222 218237.659 61 5 218188.000 218258.417 0.03% 2.2 15s 304819 150786 218211.311 99 5 218188.000 218255.363 0.03% 2.3 20s 398034 217003 218197.133 95 5 218188.000 218253.145 0.03% 2.3 25s 489704 280508 218246.131 66 5 218188.000 218251.603 0.03% 2.3 30s H547179 286723 218201.00000 218250.782 0.02% 2.3 33s 575348 298393 218237.476 98 5 218201.000 218250.780 0.02% 2.3 35s 678654 333085 218245.095 84 5 218201.000 218250.780 0.02% 2.3 40s 782415 362918 218242.657 80 5 218201.000 218250.780 0.02% 2.3 45s H796354 325783 218215.00000 218250.780 0.02% 2.3 45s 888222 347541 218238.003 94 5 218215.000 218250.780 0.02% 2.3 50s 1003485 361945 218232.097 101 5 218215.000 218250.780 0.02% 2.3 55s 1119228 366201 cutoff 104 218215.000 218247.937 0.02% 2.3 60s 1236468 363193 218229.112 89 5 218215.000 218245.645 0.01% 2.3 65s 1354282 354330 218236.505 102 5 218215.000 218243.843 0.01% 2.3 70s 1472632 339611 218229.908 90 5 218215.000 218242.279 0.01% 2.3 75s 1592560 319528 218223.533 99 5 218215.000 218240.865 0.01% 2.3 80s 1711408 296273 218220.506 98 4 218215.000 218239.590 0.01% 2.3 85s 1831614 282703 218216.617 94 5 218215.000 218238.406 0.01% 2.3 90s 1950703 289870 218235.898 91 5 218215.000 218237.286 0.01% 2.3 95s Cutting planes: Gomory: 6 Cover: 2 Zero half: 2 Explored 2001423 nodes (4657535 simplex iterations) in 97.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.182150000000e+05, best bound 2.182360000000e+05, gap 0.0096%