Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:03:46 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 286532.00000 Root relaxation: objective 3.004126e+05, 20 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 300412.558 0 5 286532.000 300412.558 4.84% - 0s H 0 0 300117.00000 300412.558 0.10% - 0s 0 0 300410.717 0 8 300117.000 300410.717 0.10% - 0s H 0 0 300214.00000 300410.717 0.07% - 0s 0 0 300410.717 0 5 300214.000 300410.717 0.07% - 0s 0 0 300410.502 0 8 300214.000 300410.502 0.07% - 0s 0 2 300410.416 0 8 300214.000 300410.416 0.07% - 0s H 338 272 300259.00000 300406.908 0.05% 2.2 0s H 1111 755 300262.00000 300404.242 0.05% 2.9 0s H 2918 1891 300273.00000 300401.772 0.04% 2.5 0s H 7878 5944 300275.00000 300398.618 0.04% 2.3 0s H 8032 5859 300284.00000 300398.482 0.04% 2.3 0s H 8754 6413 300286.00000 300398.238 0.04% 2.3 0s H 9936 7352 300288.00000 300397.875 0.04% 2.4 0s H31895 12935 300329.00000 300393.551 0.02% 2.3 2s 74675 30395 300376.263 101 5 300329.000 300388.762 0.02% 2.2 5s H106275 39014 300342.00000 300388.762 0.02% 2.2 6s 171204 58971 300369.806 89 6 300342.000 300386.960 0.01% 2.2 10s 282208 96928 300375.825 71 5 300342.000 300381.145 0.01% 2.2 15s 394239 148326 300368.519 77 5 300342.000 300378.008 0.01% 2.3 20s 506448 193581 300372.622 86 5 300342.000 300375.767 0.01% 2.3 25s 618677 234147 cutoff 82 300342.000 300374.034 0.01% 2.3 30s 732917 271233 300363.797 76 5 300342.000 300372.610 0.01% 2.3 35s Cutting planes: Gomory: 5 MIR: 6 Explored 784789 nodes (1776104 simplex iterations) in 37.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.003420000000e+05, best bound 3.003720000000e+05, gap 0.0100%