Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:11:05 2013 Optimize a model with 10 rows, 100 columns and 1000 nonzeros Presolve time: 0.00s Presolved: 10 rows, 100 columns, 1000 nonzeros Variable types: 0 continuous, 100 integer (100 binary) Found heuristic solution: objective 39081.000000 Root relaxation: objective 4.275932e+04, 32 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 42759.3186 0 10 39081.0000 42759.3186 9.41% - 0s H 0 0 41986.000000 42759.3186 1.84% - 0s 0 0 42745.4694 0 11 41986.0000 42745.4694 1.81% - 0s 0 0 42733.9302 0 13 41986.0000 42733.9302 1.78% - 0s 0 0 42729.6631 0 13 41986.0000 42729.6631 1.77% - 0s 0 0 42726.8254 0 13 41986.0000 42726.8254 1.76% - 0s 0 2 42725.6674 0 13 41986.0000 42725.6674 1.76% - 0s H 8 8 42219.000000 42718.1364 1.18% 5.8 0s H 77 63 42278.000000 42718.0487 1.04% 2.9 0s H 1641 909 42307.000000 42683.5794 0.89% 3.8 0s H 3573 2136 42323.000000 42654.2521 0.78% 3.7 0s H 6882 4233 42350.000000 42631.9096 0.67% 3.7 0s H25890 12275 42401.000000 42575.2465 0.41% 3.8 1s 70595 17504 cutoff 29 42401.0000 42507.7664 0.25% 3.8 5s Cutting planes: Gomory: 10 Cover: 1 Explored 123582 nodes (451386 simplex iterations) in 8.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.240100000000e+04, best bound 4.240500000000e+04, gap 0.0094%