Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:16:00 2013 Optimize a model with 3200 rows, 203500 columns and 1401900 nonzeros Presolve removed 100 rows and 2500 columns Presolve time: 2.35s Presolved: 3100 rows, 201000 columns, 1301900 nonzeros Variable types: 200100 continuous, 900 integer (900 binary) Root relaxation: objective 8.654105e+05, 8401 iterations, 1.42 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 865410.545 0 14 - 865410.545 - - 4s 0 0 865425.518 0 14 - 865425.518 - - 6s 0 0 865426.774 0 14 - 865426.774 - - 7s 0 0 865428.724 0 14 - 865428.724 - - 7s 0 0 865430.242 0 14 - 865430.242 - - 8s 0 0 865430.250 0 14 - 865430.250 - - 9s 0 0 865430.255 0 14 - 865430.255 - - 10s 0 0 865430.255 0 14 - 865430.255 - - 11s 0 0 865430.255 0 14 - 865430.255 - - 12s 0 0 865430.267 0 14 - 865430.267 - - 13s 0 0 865430.267 0 14 - 865430.267 - - 17s 0 2 865430.346 0 14 - 865430.346 - - 33s 9 11 865852.916 9 9 - 865676.540 - 126 35s 19 21 866690.964 19 7 - 865676.540 - 94.6 40s 39 41 866964.224 37 6 - 865676.540 - 57.8 45s 62 64 867125.505 59 10 - 865676.540 - 41.9 50s 83 85 867444.397 80 7 - 865676.540 - 37.1 55s 111 113 867635.840 107 3 - 865676.540 - 34.8 60s 132 134 867868.076 127 9 - 865676.540 - 32.9 65s 159 161 868130.828 154 7 - 865676.540 - 29.6 70s 197 199 868166.634 192 4 - 865676.540 - 24.3 75s 223 225 868192.705 218 7 - 865676.540 - 21.8 80s 264 266 868235.270 259 7 - 865676.540 - 18.7 85s 309 311 868373.408 304 7 - 865676.540 - 16.3 90s * 329 304 324 870545.34686 865676.540 0.56% 15.4 91s 338 301 867334.706 10 8 870545.347 865782.004 0.55% 18.5 95s 425 387 869201.920 97 8 870545.347 865782.004 0.55% 19.2 100s 484 437 867641.869 18 7 870545.347 865852.916 0.54% 22.0 105s H 498 199 868091.63619 865852.916 0.26% 21.9 109s 501 200 867982.474 33 7 868091.636 865852.916 0.26% 21.9 110s 568 233 867064.142 10 7 868091.636 865974.198 0.24% 21.0 115s 601 250 867908.668 135 14 868091.636 865974.198 0.24% 22.0 123s 603 251 867782.551 120 14 868091.636 865974.198 0.24% 21.9 125s 608 255 867146.843 63 16 868091.636 865974.198 0.24% 21.8 130s 614 259 868088.947 75 16 868091.636 865974.198 0.24% 21.6 136s 617 261 867892.129 12 16 868091.636 865974.198 0.24% 21.5 142s 620 265 866111.097 10 9 868091.636 866111.097 0.23% 48.5 146s 625 264 866643.327 14 7 868091.636 866461.739 0.19% 50.1 150s 635 265 866700.254 21 7 868091.636 866461.739 0.19% 49.8 155s 644 266 866754.166 27 7 868091.636 866461.739 0.19% 49.4 160s H 646 243 866879.50143 866461.739 0.05% 49.3 161s 655 240 866564.739 11 7 866879.501 866511.704 0.04% 49.8 165s Cutting planes: Gomory: 1 Flow cover: 11 Explored 666 nodes (46826 simplex iterations) in 169.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.668795014270e+05, best bound 8.667930432077e+05, gap 0.0100%