Gurobi 5.0.1 (linux64) logging started Thu Jan 24 19:49:41 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 198494.00000 Root relaxation: objective 2.200765e+05, 18 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 220076.548 0 5 198494.000 220076.548 10.9% - 0s H 0 0 219816.00000 220076.548 0.12% - 0s 0 0 220075.085 0 8 219816.000 220075.085 0.12% - 0s H 0 0 219928.00000 220075.085 0.07% - 0s 0 0 220075.085 0 5 219928.000 220075.085 0.07% - 0s 0 0 220075.063 0 8 219928.000 220075.063 0.07% - 0s 0 2 220074.838 0 8 219928.000 220074.838 0.07% - 0s H 2364 1488 219931.00000 220068.539 0.06% 2.5 0s H11385 8357 219951.00000 220061.706 0.05% 2.3 1s H25503 17234 219961.00000 220058.367 0.04% 2.2 2s H29958 17141 219989.00000 220058.367 0.03% 2.2 2s 74069 34186 220051.760 59 5 219989.000 220051.760 0.03% 2.2 5s 169961 68966 cutoff 72 219989.000 220042.039 0.02% 2.3 10s 267067 117706 219994.041 73 5 219989.000 220037.084 0.02% 2.3 15s 365932 160067 220012.922 79 5 219989.000 220033.553 0.02% 2.3 20s 465935 198442 220008.384 69 5 219989.000 220030.841 0.02% 2.3 25s 565131 230953 220015.500 80 5 219989.000 220028.637 0.02% 2.3 30s 666127 260083 220006.463 60 5 219989.000 220026.738 0.02% 2.3 35s 767166 284465 cutoff 75 219989.000 220025.015 0.02% 2.3 40s 868400 305182 220021.538 69 5 219989.000 220023.495 0.02% 2.3 45s 970394 322844 220016.290 72 5 219989.000 220022.070 0.02% 2.3 50s 1072282 337067 cutoff 65 219989.000 220020.710 0.01% 2.3 55s 1175069 347551 cutoff 71 219989.000 220019.412 0.01% 2.4 60s 1277892 354714 cutoff 74 219989.000 220018.200 0.01% 2.4 65s 1381141 359577 cutoff 78 219989.000 220017.020 0.01% 2.4 70s 1485114 360545 220006.200 71 5 219989.000 220015.861 0.01% 2.4 75s 1589201 358623 cutoff 76 219989.000 220014.721 0.01% 2.4 80s 1692247 353665 219997.959 105 5 219989.000 220013.588 0.01% 2.4 85s 1797262 345562 cutoff 76 219989.000 220012.436 0.01% 2.4 90s 1901159 333713 220009.355 83 5 219989.000 220011.279 0.01% 2.4 95s Cutting planes: Gomory: 6 MIR: 4 Zero half: 2 Explored 1926236 nodes (4551740 simplex iterations) in 96.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.199890000000e+05, best bound 2.200109988791e+05, gap 0.0100%