Gurobi 5.0.1 (linux64) logging started Thu Jan 24 18:13:30 2013 Optimize a model with 5 rows, 250 columns and 1250 nonzeros Presolve time: 0.00s Presolved: 5 rows, 250 columns, 1250 nonzeros Variable types: 0 continuous, 250 integer (250 binary) Found heuristic solution: objective 49697.000000 Root relaxation: objective 5.944247e+04, 17 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 59442.4703 0 5 49697.0000 59442.4703 19.6% - 0s H 0 0 58946.000000 59442.4703 0.84% - 0s 0 0 59438.0686 0 9 58946.0000 59438.0686 0.83% - 0s 0 0 59436.0235 0 9 58946.0000 59436.0235 0.83% - 0s 0 0 59434.7045 0 9 58946.0000 59434.7045 0.83% - 0s H 0 0 59193.000000 59434.7045 0.41% - 0s 0 0 59434.7045 0 5 59193.0000 59434.7045 0.41% - 0s 0 0 59434.7045 0 9 59193.0000 59434.7045 0.41% - 0s 0 0 59432.2137 0 9 59193.0000 59432.2137 0.40% - 0s 0 0 59431.9075 0 11 59193.0000 59431.9075 0.40% - 0s 0 2 59430.6603 0 11 59193.0000 59430.6603 0.40% - 0s H 679 528 59196.000000 59423.2449 0.38% 2.5 0s H 3015 1832 59209.000000 59411.6160 0.34% 2.5 0s H16104 11479 59214.000000 59388.0583 0.29% 2.4 1s H33771 23775 59218.000000 59377.0240 0.27% 2.3 1s H42370 27915 59221.000000 59373.7982 0.26% 2.4 2s H49320 28669 59259.000000 59373.7982 0.19% 2.3 3s 83624 38321 59317.4981 57 5 59259.0000 59373.7938 0.19% 2.4 5s 187381 64744 59297.1548 72 5 59259.0000 59347.7421 0.15% 2.4 10s H190975 28560 59312.000000 59347.2403 0.06% 2.4 10s Cutting planes: Gomory: 6 Cover: 1 MIR: 4 Zero half: 1 Explored 243194 nodes (570780 simplex iterations) in 12.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.931200000000e+04, best bound 5.931700000000e+04, gap 0.0084%