Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:25:24 2013 Optimize a model with 6600 rows, 110300 columns and 235500 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 1.19s Presolved: 6500 rows, 110200 columns, 230400 nonzeros Variable types: 105200 continuous, 5000 integer (5000 binary) Root relaxation: objective 9.481640e+05, 9194 iterations, 2.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 948163.962 0 8 - 948163.962 - - 3s 0 0 948317.380 0 8 - 948317.380 - - 6s 0 0 948344.071 0 8 - 948344.071 - - 7s 0 0 948349.690 0 8 - 948349.690 - - 8s 0 0 948355.553 0 8 - 948355.553 - - 9s 0 0 948355.871 0 8 - 948355.871 - - 10s 0 0 948356.464 0 8 - 948356.464 - - 10s 0 0 948357.149 0 8 - 948357.149 - - 11s 0 0 948357.887 0 8 - 948357.887 - - 12s 0 0 948358.401 0 8 - 948358.401 - - 12s 0 0 948359.128 0 8 - 948359.128 - - 13s 0 0 948359.248 0 8 - 948359.248 - - 14s 0 0 948359.285 0 8 - 948359.285 - - 15s 0 0 948359.372 0 8 - 948359.372 - - 16s 0 0 948359.448 0 8 - 948359.448 - - 17s 0 0 948359.578 0 8 - 948359.578 - - 18s 0 0 948359.578 0 8 - 948359.578 - - 20s H 0 0 1018753.4844 948359.578 6.91% - 21s 0 2 948359.578 0 8 1018753.48 948359.578 6.91% - 23s 4 6 948758.541 2 4 1018753.48 948411.445 6.90% 380 26s 7 9 948601.110 4 2 1018753.48 948470.326 6.90% 396 30s 11 13 949694.872 6 4 1018753.48 948758.541 6.87% 455 35s 18 20 951871.123 9 4 1018753.48 948758.541 6.87% 364 40s 25 27 949675.287 13 2 1018753.48 948758.541 6.87% 320 45s H 27 17 951874.33645 948758.541 0.33% 311 46s 39 21 951118.652 22 2 951874.336 948758.541 0.33% 224 50s 51 23 950250.897 33 2 951874.336 948758.541 0.33% 180 55s * 53 10 35 950276.23626 948758.541 0.16% 175 55s 56 13 950262.283 4 4 950276.236 948758.541 0.16% 197 60s 70 9 949855.688 4 2 950276.236 949370.547 0.10% 199 67s 86 4 949799.470 17 2 950276.236 949799.470 0.05% 170 70s 105 3 949885.983 35 2 950276.236 949885.983 0.04% 141 75s 121 3 949921.364 51 2 950276.236 949921.364 0.04% 123 80s 137 3 949962.845 66 2 950276.236 949962.845 0.03% 110 85s 156 3 950002.159 83 2 950276.236 950002.159 0.03% 99.1 90s 176 3 950044.661 102 2 950276.236 950044.661 0.02% 89.2 95s 196 3 950113.095 122 2 950276.236 950113.095 0.02% 80.7 100s Cutting planes: Implied bound: 44 Flow cover: 18 Explored 215 nodes (29199 simplex iterations) in 104.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.502762362556e+05, best bound 9.501849272431e+05, gap 0.0096%