Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:02:36 2013 Optimize a model with 2100 rows, 101300 columns and 204000 nonzeros Presolve removed 200 rows and 200 columns Presolve time: 0.57s Presolved: 1900 rows, 101100 columns, 203300 nonzeros Variable types: 100700 continuous, 400 integer (400 binary) Root relaxation: objective 9.481640e+05, 5985 iterations, 0.58 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 4 - 948163.962 - - 1s H 0 0 1045693.0343 948163.962 9.33% - 1s H 0 0 960008.20110 948163.962 1.23% - 2s 0 0 948317.898 0 4 960008.201 948317.898 1.22% - 2s 0 0 948360.949 0 4 960008.201 948360.949 1.21% - 2s 0 0 948376.576 0 4 960008.201 948376.576 1.21% - 3s 0 0 948376.576 0 4 960008.201 948376.576 1.21% - 3s 0 0 948376.576 0 4 960008.201 948376.576 1.21% - 3s 0 0 948376.896 0 4 960008.201 948376.896 1.21% - 3s 0 0 948378.473 0 4 960008.201 948378.473 1.21% - 4s 0 0 948378.990 0 4 960008.201 948378.990 1.21% - 4s 0 0 948379.982 0 4 960008.201 948379.982 1.21% - 4s 0 0 948380.765 0 4 960008.201 948380.765 1.21% - 4s 0 0 948380.765 0 4 960008.201 948380.765 1.21% - 5s 0 2 948382.811 0 4 960008.201 948382.811 1.21% - 5s * 25 12 24 950276.23626 948469.132 0.19% 74.8 8s 34 10 cutoff 5 950276.236 948780.249 0.16% 136 10s H 82 11 950067.53247 949778.234 0.03% 108 14s 105 12 949936.618 59 1 950067.532 949778.234 0.03% 84.7 15s Cutting planes: Flow cover: 19 Explored 148 nodes (16592 simplex iterations) in 16.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.500675324736e+05, best bound 9.499766843967e+05, gap 0.0096%