Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:13:51 2013 Optimize a model with 2600 rows, 113600 columns and 291300 nonzeros Presolve removed 100 rows and 2900 columns Presolve time: 0.39s Presolved: 2500 rows, 110700 columns, 281300 nonzeros Variable types: 110100 continuous, 600 integer (600 binary) Root relaxation: objective 9.481640e+05, 6962 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 12 - 948163.962 - - 1s 0 0 948291.024 0 12 - 948291.024 - - 1s 0 0 948331.962 0 12 - 948331.962 - - 2s 0 0 948337.877 0 12 - 948337.877 - - 2s 0 0 948343.970 0 12 - 948343.970 - - 2s 0 0 948352.137 0 12 - 948352.137 - - 3s 0 0 948353.658 0 12 - 948353.658 - - 3s 0 0 948355.674 0 12 - 948355.674 - - 3s 0 0 948357.182 0 12 - 948357.182 - - 3s 0 0 948357.829 0 12 - 948357.829 - - 4s 0 0 948359.797 0 12 - 948359.797 - - 4s 0 0 948359.797 0 12 - 948359.797 - - 6s H 0 0 1018753.4844 948359.797 6.91% - 6s 0 2 948359.915 0 12 1018753.48 948359.915 6.91% - 8s 9 11 948659.607 8 8 1018753.48 948440.941 6.90% 167 10s H 27 24 953474.84082 948440.941 0.53% 90.6 13s 33 27 949965.911 28 6 953474.841 948440.941 0.53% 81.3 15s H 54 39 952291.95093 948440.941 0.40% 60.4 17s 79 43 950771.949 72 3 952291.951 948440.941 0.40% 45.0 20s 118 51 951459.361 111 3 952291.951 948440.941 0.40% 33.3 25s * 129 51 122 951795.04939 948440.941 0.35% 31.3 25s 180 91 cutoff 47 951795.049 948530.132 0.34% 48.4 30s H 217 96 951744.71882 948889.735 0.30% 66.5 34s 230 110 951094.028 25 4 951744.719 948889.735 0.30% 63.6 35s H 325 180 951689.14336 948906.120 0.29% 56.2 38s 345 189 950598.176 4 3 951689.143 949033.098 0.28% 57.8 40s 391 216 951399.446 10 3 951689.143 949157.541 0.27% 67.1 45s 536 317 949566.083 18 3 951689.143 949358.898 0.24% 56.3 50s H 545 83 950681.11486 949358.898 0.14% 55.9 50s * 553 52 35 950276.23626 949358.898 0.10% 55.5 50s 608 58 cutoff 9 950276.236 949462.662 0.09% 58.6 55s 703 97 950187.896 49 12 950276.236 949545.148 0.08% 53.9 60s 706 99 950217.815 25 28 950276.236 949545.148 0.08% 53.7 65s 710 104 949545.148 13 12 950276.236 949545.148 0.08% 65.3 70s 723 101 949599.735 23 3 950276.236 949545.148 0.08% 65.9 75s 741 101 949545.148 16 3 950276.236 949545.148 0.08% 66.7 80s 767 86 949988.247 19 6 950276.236 949787.291 0.05% 71.8 85s Cutting planes: Gomory: 7 Flow cover: 13 Explored 818 nodes (64822 simplex iterations) in 88.57 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.502059930357e+05, gap 0.0074%