Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:31:05 2013 Optimize a model with 63358 rows, 62568 columns and 249798 nonzeros Presolve removed 79 rows and 0 columns Presolve time: 0.29s Presolved: 63279 rows, 62568 columns, 249719 nonzeros Variable types: 62489 continuous, 79 integer (79 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7790 6.8913396e+04 8.990208e+03 0.000000e+00 5s 8907 6.9228061e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 6.922806e+04, 8907 iterations, 7.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 69228.0608 0 59 - 69228.0608 - - 7s H 0 0 116979.00000 69228.0608 40.8% - 13s 0 0 84668.3162 0 19 116979.000 84668.3162 27.6% - 23s H 0 0 102633.00000 84668.3162 17.5% - 24s 0 0 87738.9328 0 8 102633.000 87738.9328 14.5% - 27s H 0 0 100493.29038 87738.9328 12.7% - 27s H 0 0 96934.000000 87738.9328 9.49% - 27s 0 0 90050.9493 0 8 96934.0000 90050.9493 7.10% - 29s 0 0 90721.7535 0 4 96934.0000 90721.7535 6.41% - 30s H 0 0 94874.933267 90721.7535 4.38% - 30s H 0 0 93298.000000 90721.7535 2.76% - 30s H 0 0 90977.000000 90721.7535 0.28% - 30s 0 0 90721.7535 0 42 90977.0000 90721.7535 0.28% - 38s 0 0 90721.7535 0 12 90977.0000 90721.7535 0.28% - 50s 0 0 90721.7535 0 5 90977.0000 90721.7535 0.28% - 52s 0 0 90721.7535 0 7 90977.0000 90721.7535 0.28% - 55s 0 0 90721.7535 0 4 90977.0000 90721.7535 0.28% - 55s 0 2 90724.2921 0 4 90977.0000 90724.2921 0.28% - 57s H 11 1 90881.025210 90836.6000 0.05% 277 59s * 12 1 4 90869.000000 90837.6980 0.03% 274 59s Cutting planes: Gomory: 1 Implied bound: 59 Explored 14 nodes (40696 simplex iterations) in 59.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.086900000000e+04, best bound 9.086900000000e+04, gap 0.0%