Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:11:37 2013 Optimize a model with 1650 rows, 225150 columns and 450150 nonzeros Presolve time: 0.52s Presolved: 1650 rows, 225150 columns, 450150 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root relaxation: objective 2.338417e+05, 7776 iterations, 0.64 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 233841.718 0 7 - 233841.718 - - 1s H 0 0 250412.00000 233841.718 6.62% - 2s H 0 0 234554.00000 233841.718 0.30% - 2s 0 0 234143.285 0 5 234554.000 234143.285 0.18% - 2s 0 0 234143.285 0 7 234554.000 234143.285 0.18% - 4s 0 0 234143.285 0 5 234554.000 234143.285 0.18% - 4s 0 0 234170.311 0 4 234554.000 234170.311 0.16% - 4s 0 0 234176.385 0 5 234554.000 234176.385 0.16% - 4s 0 0 234179.286 0 4 234554.000 234179.286 0.16% - 5s 0 0 234179.286 0 4 234554.000 234179.286 0.16% - 5s 0 0 234179.286 0 4 234554.000 234179.286 0.16% - 5s 0 0 234180.560 0 4 234554.000 234180.560 0.16% - 5s 0 0 234182.495 0 3 234554.000 234182.495 0.16% - 5s 0 0 234182.495 0 3 234554.000 234182.495 0.16% - 6s 0 0 234182.522 0 2 234554.000 234182.522 0.16% - 6s 0 0 234187.777 0 3 234554.000 234187.777 0.16% - 6s 0 0 234188.442 0 2 234554.000 234188.442 0.16% - 6s 0 2 234188.868 0 2 234554.000 234188.868 0.16% - 7s H 2 2 234422.00000 234276.000 0.06% 55.5 7s * 4 2 4 234311.00000 234311.000 0.0% 60.0 7s Cutting planes: Implied bound: 88 Flow cover: 8 Explored 5 nodes (12948 simplex iterations) in 7.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.343110000000e+05, best bound 2.343110000000e+05, gap 0.0%