Gurobi 5.0.1 (linux64) logging started Wed Dec 26 01:41:43 2012 Optimize a model with 1762 rows, 1681 columns and 10792 nonzeros Presolve removed 288 rows and 409 columns Presolve time: 0.06s Presolved: 1474 rows, 1272 columns, 18562 nonzeros Variable types: 40 continuous, 1232 integer (1232 binary) Root relaxation: objective 2.780516e+02, 251 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 278.05160 0 85 - 278.05160 - - 0s 0 0 304.47200 0 80 - 304.47200 - - 0s 0 0 304.88889 0 71 - 304.88889 - - 0s 0 0 304.88889 0 71 - 304.88889 - - 0s 0 0 304.88889 0 63 - 304.88889 - - 0s 0 0 304.88889 0 63 - 304.88889 - - 0s 0 0 304.88889 0 63 - 304.88889 - - 0s 0 2 304.88889 0 63 - 304.88889 - - 0s 617 511 385.33796 25 101 - 318.27190 - 11.5 5s H 633 494 377.0000000 318.83871 15.4% 11.2 8s H 769 537 357.0000000 319.42261 10.5% 16.2 9s H 796 505 354.0000000 319.42261 9.77% 16.4 10s H 877 463 350.0000000 319.42261 8.74% 16.4 10s 1882 781 341.56562 59 48 350.00000 329.66123 5.81% 18.1 15s 4161 1608 cutoff 67 350.00000 331.27108 5.35% 17.4 20s H 4918 1843 349.0000000 331.52832 5.01% 17.6 21s 6248 2163 335.13008 46 26 349.00000 331.96489 4.88% 17.9 25s 8351 2602 343.43123 50 58 349.00000 332.62500 4.69% 18.7 30s 10403 2891 334.59882 48 49 349.00000 333.29230 4.50% 19.1 35s 12591 3229 341.82034 60 20 349.00000 333.94391 4.31% 19.3 40s 15047 3592 344.76975 38 64 349.00000 334.56622 4.14% 19.4 45s 17320 3867 337.03015 39 30 349.00000 335.05063 4.00% 19.5 50s 19475 4060 cutoff 42 349.00000 335.60667 3.84% 19.5 55s 21957 4205 cutoff 46 349.00000 336.20155 3.67% 19.7 60s 24590 4239 347.79860 54 55 349.00000 336.83370 3.49% 19.8 65s *27126 4238 60 348.0000000 337.30756 3.07% 19.9 69s 27128 4237 346.31214 58 26 348.00000 337.30756 3.07% 19.9 70s 28748 4180 339.06280 40 51 348.00000 337.66667 2.97% 19.9 75s 31297 4077 cutoff 41 348.00000 338.20349 2.82% 20.0 80s 33856 3979 342.45765 40 43 348.00000 338.75736 2.66% 20.1 85s 36521 3741 342.34130 43 49 348.00000 339.39606 2.47% 20.1 90s 39163 3356 340.58970 40 41 348.00000 340.08494 2.27% 20.1 95s 41915 2896 345.90678 53 33 348.00000 340.86884 2.05% 20.1 100s 44619 2245 342.45155 56 34 348.00000 341.76617 1.79% 20.0 105s 47390 1305 infeasible 41 348.00000 343.04671 1.42% 20.0 110s Cutting planes: Learned: 14 Gomory: 7 Cover: 111 Implied bound: 44 Clique: 5 MIR: 85 GUB cover: 11 Zero half: 45 Explored 49496 nodes (978132 simplex iterations) in 113.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.480000000000e+02, best bound 3.480000000000e+02, gap 0.0%