Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:18:47 2013 Optimize a model with 76734 rows, 75864 columns and 302934 nonzeros Presolve removed 87 rows and 0 columns Presolve time: 0.36s Presolved: 76647 rows, 75864 columns, 302847 nonzeros Variable types: 75777 continuous, 87 integer (87 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8467 7.0107807e+04 5.591923e+04 0.000000e+00 5s 10280 7.0781335e+04 0.000000e+00 0.000000e+00 10s Root relaxation: objective 7.078134e+04, 10280 iterations, 9.85 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 70781.3354 0 66 - 70781.3354 - - 10s H 0 0 131960.00000 70781.3354 46.4% - 20s 0 0 92587.8848 0 22 131960.000 92587.8848 29.8% - 36s H 0 0 110186.00000 92587.8848 16.0% - 37s 0 0 101222.548 0 5 110186.000 101222.548 8.13% - 43s 0 0 102355.108 0 4 110186.000 102355.108 7.11% - 45s 0 0 102421.933 0 4 110186.000 102421.933 7.05% - 45s 0 0 102527.418 0 4 110186.000 102527.418 6.95% - 46s H 0 0 109868.63254 102527.418 6.68% - 46s H 0 0 108663.00000 102527.418 5.65% - 46s 0 2 102544.324 0 4 108663.000 102544.324 5.63% - 48s H 2 2 106056.28054 102597.907 3.26% 141 49s H 3 3 104970.63990 102597.907 2.26% 184 49s H 4 4 103395.13934 102597.907 0.77% 250 49s 5 6 102812.955 4 3 103395.139 102597.907 0.77% 330 50s H 8 5 103134.71875 102597.907 0.52% 248 50s * 13 7 11 103021.00000 102597.907 0.41% 226 51s 38 4 103005.681 4 2 103021.000 102896.912 0.12% 220 55s Cutting planes: Implied bound: 87 Explored 50 nodes (35152 simplex iterations) in 55.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.030210000000e+05, best bound 1.030210000000e+05, gap 0.0%