Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:47:40 2013 Optimize a model with 3200 rows, 151200 columns and 753100 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 1.10s Presolved: 3100 rows, 151100 columns, 703000 nonzeros Variable types: 150200 continuous, 900 integer (900 binary) Root relaxation: objective 9.481640e+05, 7256 iterations, 0.82 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 12 - 948163.962 - - 2s 0 0 948181.935 0 12 - 948181.935 - - 3s 0 0 948196.394 0 16 - 948196.394 - - 4s 0 0 948203.664 0 17 - 948203.664 - - 4s 0 0 948207.959 0 20 - 948207.959 - - 5s 0 0 948211.156 0 19 - 948211.156 - - 6s 0 0 948211.285 0 19 - 948211.285 - - 6s 0 0 948211.285 0 19 - 948211.285 - - 7s 0 0 948211.780 0 18 - 948211.780 - - 8s 0 0 948211.979 0 19 - 948211.979 - - 9s 0 0 948212.729 0 18 - 948212.729 - - 9s 0 0 948213.217 0 18 - 948213.217 - - 10s 0 0 948213.217 0 18 - 948213.217 - - 11s 0 0 948213.444 0 18 - 948213.444 - - 11s 0 0 948213.444 0 18 - 948213.444 - - 12s 0 0 948213.444 0 18 - 948213.444 - - 15s 0 2 948214.881 0 18 - 948214.881 - - 27s 12 14 948870.600 11 6 - 948296.132 - 75.5 30s 31 33 949945.712 29 3 - 948296.132 - 56.7 35s 52 54 950412.992 48 3 - 948296.132 - 43.8 40s 73 75 950428.342 69 3 - 948296.132 - 32.2 45s * 81 41 77 950428.96581 948296.132 0.22% 29.3 46s * 119 61 38 950379.49560 948422.588 0.21% 35.0 49s 126 62 948797.634 7 6 950379.496 948424.654 0.21% 38.3 50s 148 54 950084.271 5 3 950379.496 948843.402 0.16% 67.1 55s 167 52 cutoff 5 950379.496 948882.112 0.16% 80.3 60s 195 45 949344.268 1 10 950379.496 949335.718 0.11% 88.5 65s 223 42 949675.287 22 3 950379.496 949560.717 0.09% 90.6 70s 282 54 950162.964 75 3 950379.496 949560.717 0.09% 72.8 75s 369 65 950301.047 28 3 950379.496 949730.702 0.07% 60.1 80s 502 102 950164.655 45 1 950379.496 949804.596 0.06% 47.8 85s * 553 92 34 950276.23626 949824.735 0.05% 44.8 87s 618 114 950066.929 66 3 950276.236 949882.345 0.04% 41.3 90s 713 120 949984.061 46 12 950276.236 949972.219 0.03% 36.7 95s 720 125 950197.887 27 18 950276.236 949972.219 0.03% 36.4 100s 724 129 949972.219 13 11 950276.236 949972.219 0.03% 46.6 105s 732 132 949972.219 17 6 950276.236 949972.219 0.03% 48.9 110s 772 119 949988.749 54 3 950276.236 949972.219 0.03% 47.1 115s 814 99 cutoff 17 950276.236 949972.219 0.03% 47.3 120s Cutting planes: Flow cover: 25 Explored 827 nodes (47545 simplex iterations) in 122.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501978871264e+05, gap 0.0082%