Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:05:02 2013 Optimize a model with 58672 rows, 57912 columns and 231192 nonzeros Presolve removed 76 rows and 0 columns Presolve time: 0.27s Presolved: 58596 rows, 57912 columns, 231116 nonzeros Variable types: 57836 continuous, 76 integer (76 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7616 6.3585429e+04 6.311187e+03 0.000000e+00 5s 8129 6.3676669e+04 0.000000e+00 0.000000e+00 6s Root relaxation: objective 6.367667e+04, 8129 iterations, 6.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 63676.6693 0 59 - 63676.6693 - - 6s H 0 0 111186.00000 63676.6693 42.7% - 10s 0 0 84026.4534 0 18 111186.000 84026.4534 24.4% - 20s H 0 0 101962.00000 84026.4534 17.6% - 21s 0 0 89722.4138 0 8 101962.000 89722.4138 12.0% - 23s H 0 0 97452.076656 89722.4138 7.93% - 23s H 0 0 96523.000000 89722.4138 7.05% - 23s 0 0 90416.7476 0 4 96523.0000 90416.7476 6.33% - 24s H 0 0 95011.528297 90416.7476 4.84% - 24s H 0 0 91396.000000 90416.7476 1.07% - 24s 0 0 90434.0743 0 3 91396.0000 90434.0743 1.05% - 25s 0 0 90435.5000 0 1 91396.0000 90435.5000 1.05% - 25s 0 2 90440.0000 0 1 91396.0000 90440.0000 1.05% - 26s H 5 5 90688.000000 90540.8639 0.16% 181 27s H 6 2 90668.000000 90540.8639 0.14% 165 27s H 8 2 90635.786667 90540.8639 0.10% 133 27s * 9 1 8 90604.000000 90540.8639 0.07% 121 27s Cutting planes: Gomory: 1 Implied bound: 75 Explored 11 nodes (19655 simplex iterations) in 27.65 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.060400000000e+04, best bound 9.060400000000e+04, gap 0.0%