Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:24:36 2013 Optimize a model with 61776 rows, 60996 columns and 243516 nonzeros Presolve removed 78 rows and 0 columns Presolve time: 0.28s Presolved: 61698 rows, 60996 columns, 243438 nonzeros Variable types: 60918 continuous, 78 integer (78 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7466 6.5246521e+04 1.806784e+04 0.000000e+00 5s 8467 6.5532480e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 6.553248e+04, 8467 iterations, 7.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65532.4802 0 67 - 65532.4802 - - 7s H 0 0 116388.00000 65532.4802 43.7% - 12s 0 0 86851.1669 0 19 116388.000 86851.1669 25.4% - 26s H 0 0 102550.00000 86851.1669 15.3% - 27s 0 0 92649.2901 0 6 102550.000 92649.2901 9.65% - 29s H 0 0 101845.00000 92649.2901 9.03% - 29s 0 0 92667.6479 0 5 101845.000 92667.6479 9.01% - 29s H 0 0 99841.435525 92667.6479 7.19% - 29s H 0 0 98696.000000 92667.6479 6.11% - 29s 0 2 92671.2811 0 5 98696.0000 92671.2811 6.10% - 31s H 1 1 95070.005023 92671.2811 2.52% 0.0 31s H 2 2 94806.839794 92753.1040 2.17% 135 31s H 4 4 94571.167289 92758.1121 1.92% 156 31s H 5 5 93908.132709 92758.1121 1.22% 146 31s H 6 6 93380.460496 92758.1121 0.67% 168 32s H 8 7 93063.000000 92758.1121 0.33% 165 32s H 9 7 92977.224719 92758.1121 0.24% 149 32s * 13 7 11 92966.000000 92758.1121 0.22% 122 32s * 22 5 7 92872.000000 92788.1231 0.09% 123 33s Cutting planes: Implied bound: 77 Explored 31 nodes (21652 simplex iterations) in 33.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.287200000000e+04, best bound 9.287200000000e+04, gap 0.0%