Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:29:20 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 6440 rows and 0 columns Presolve time: 0.98s Presolved: 115770 rows, 121110 columns, 471230 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20299 1.3743244e+05 1.076031e+04 0.000000e+00 5s 24495 1.4201907e+05 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.420191e+05, 24495 iterations, 7.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 142019.069 0 6 - 142019.069 - - 8s H 0 0 150821.00000 142019.069 5.84% - 9s H 0 0 143381.00000 142019.069 0.95% - 10s 0 0 142022.118 0 8 143381.000 142022.118 0.95% - 10s 0 0 142022.359 0 8 143381.000 142022.359 0.95% - 11s 0 0 142022.661 0 9 143381.000 142022.661 0.95% - 13s 0 0 142022.661 0 6 143381.000 142022.661 0.95% - 25s 0 0 142022.661 0 9 143381.000 142022.661 0.95% - 25s 0 0 142022.661 0 9 143381.000 142022.661 0.95% - 26s 0 2 142032.296 0 9 143381.000 142032.296 0.94% - 30s H 7 7 142727.07143 142285.758 0.31% 144 31s H 8 8 142640.00000 142285.758 0.25% 131 31s * 15 9 13 142560.00000 142285.758 0.19% 98.9 32s Cutting planes: Gomory: 2 Flow cover: 8 Explored 43 nodes (42429 simplex iterations) in 34.75 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.425600000000e+05, best bound 1.425600000000e+05, gap 0.0%