Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:06:23 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 292395.00000 Root relaxation: objective 3.065173e+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 306517.273 0 5 292395.000 306517.273 4.83% - 0s H 0 0 306032.00000 306517.273 0.16% - 0s 0 0 306516.902 0 8 306032.000 306516.902 0.16% - 0s H 0 0 306305.00000 306516.902 0.07% - 0s H 0 0 306308.00000 306516.902 0.07% - 0s 0 0 306516.902 0 5 306308.000 306516.902 0.07% - 0s 0 0 306516.902 0 8 306308.000 306516.902 0.07% - 0s 0 2 306516.716 0 8 306308.000 306516.716 0.07% - 0s H 27 27 306347.00000 306515.702 0.06% 2.6 0s H 605 518 306396.00000 306513.822 0.04% 2.0 0s H 6834 4928 306404.00000 306507.931 0.03% 2.2 0s H22619 11517 306422.00000 306502.525 0.03% 2.2 1s 81101 39459 306477.350 71 5 306422.000 306498.147 0.02% 2.2 5s H164563 62789 306442.00000 306491.412 0.02% 2.2 9s 174402 68273 306490.778 94 5 306442.000 306490.778 0.02% 2.2 10s H213091 74166 306454.00000 306490.778 0.01% 2.2 11s 282905 83908 306459.063 100 4 306454.000 306488.690 0.01% 2.3 15s Cutting planes: Gomory: 7 Cover: 2 MIR: 1 Flow cover: 1 Explored 335301 nodes (761922 simplex iterations) in 17.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.064540000000e+05, best bound 3.064840000000e+05, gap 0.0098%