Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:26 2013 Optimize a model with 570 rows, 1760 columns and 4505 nonzeros Presolve removed 10 rows and 15 columns Presolve time: 0.08s Presolved: 560 rows, 1745 columns, 3490 nonzeros Variable types: 1250 continuous, 495 integer (495 binary) Root relaxation: objective 1.024210e+04, 33 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 10242.1039 0 1 - 10242.1039 - - 0s 0 0 10243.7723 0 2 - 10243.7723 - - 0s 0 0 10244.0537 0 2 - 10244.0537 - - 0s 0 0 10244.0537 0 2 - 10244.0537 - - 0s H 0 0 10588.736867 10244.0537 3.26% - 0s 0 2 10245.6651 0 2 10588.7369 10245.6651 3.24% - 0s H 27 21 10350.167067 10322.6785 0.27% 1.5 0s * 36 9 34 10336.395479 10332.2814 0.04% 1.4 0s Cutting planes: Gomory: 1 Flow cover: 2 Explored 44 nodes (208 simplex iterations) in 0.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.033639547902e+04, best bound 1.033540386765e+04, gap 0.0096%