Gurobi 5.0.1 (linux64) logging started Thu Jan 24 19:31:36 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 201652.00000 Root relaxation: objective 2.212724e+05, 22 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 221272.405 0 5 201652.000 221272.405 9.73% - 0s H 0 0 220907.00000 221272.405 0.17% - 0s 0 0 221269.982 0 9 220907.000 221269.982 0.16% - 0s H 0 0 221126.00000 221269.982 0.07% - 0s 0 0 221269.982 0 5 221126.000 221269.982 0.07% - 0s 0 0 221269.827 0 9 221126.000 221269.827 0.07% - 0s 0 2 221269.449 0 9 221126.000 221269.449 0.06% - 0s H 2430 1352 221154.00000 221262.874 0.05% 2.8 0s H 6484 4694 221156.00000 221260.110 0.05% 2.5 0s H23038 12747 221174.00000 221256.309 0.04% 2.4 1s H30073 13980 221188.00000 221254.422 0.03% 2.3 2s 74758 33150 221215.009 114 5 221188.000 221251.591 0.03% 2.3 5s 172929 79613 221235.534 75 5 221188.000 221244.752 0.03% 2.3 10s H232417 117095 221191.00000 221242.344 0.02% 2.3 13s 271428 141120 221212.830 90 5 221191.000 221241.079 0.02% 2.3 15s 370601 199599 cutoff 96 221191.000 221238.561 0.02% 2.3 20s 470379 254758 221233.099 72 5 221191.000 221236.659 0.02% 2.3 25s 570301 307989 221211.342 86 5 221191.000 221235.087 0.02% 2.3 30s 671284 359294 221212.022 101 5 221191.000 221233.793 0.02% 2.3 35s 772476 408427 cutoff 101 221191.000 221232.670 0.02% 2.3 40s 872993 454398 221218.080 90 5 221191.000 221231.693 0.02% 2.4 45s 975344 500351 221221.714 83 5 221191.000 221230.774 0.02% 2.4 50s H1072832 448058 221202.00000 221229.973 0.01% 2.4 54s 1075827 448808 221228.464 77 5 221202.000 221229.935 0.01% 2.4 55s 1175640 470866 221215.600 88 5 221202.000 221228.824 0.01% 2.4 60s 1278052 490133 221215.639 75 5 221202.000 221227.757 0.01% 2.4 65s 1380116 505952 221214.584 93 5 221202.000 221226.772 0.01% 2.4 70s 1484765 519023 221220.780 81 5 221202.000 221225.809 0.01% 2.4 75s 1588853 528762 221219.398 78 5 221202.000 221224.890 0.01% 2.4 80s Cutting planes: Gomory: 4 Cover: 1 MIR: 4 Zero half: 1 Explored 1680978 nodes (3982171 simplex iterations) in 84.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.212020000000e+05, best bound 2.212240000000e+05, gap 0.0099%