Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:18:24 2013 Optimize a model with 89394 rows, 88454 columns and 353534 nonzeros Presolve removed 5909 rows and 0 columns Presolve time: 0.63s Presolved: 83485 rows, 88454 columns, 341716 nonzeros Variable types: 88360 continuous, 94 integer (94 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 19993 1.2932062e+05 7.169835e+03 0.000000e+00 5s 20344 1.2939736e+05 0.000000e+00 0.000000e+00 5s Root relaxation: objective 1.293974e+05, 20344 iterations, 5.19 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 129397.356 0 3 - 129397.356 - - 6s H 0 0 131147.00000 129397.356 1.33% - 6s H 0 0 129908.00000 129397.356 0.39% - 7s 0 0 129403.621 0 6 129908.000 129403.621 0.39% - 7s 0 0 129403.621 0 6 129908.000 129403.621 0.39% - 8s 0 0 129403.621 0 3 129908.000 129403.621 0.39% - 16s 0 0 129403.660 0 6 129908.000 129403.660 0.39% - 16s 0 2 129407.432 0 6 129908.000 129407.432 0.39% - 20s H 4 3 129759.77586 129559.405 0.15% 132 20s H 5 4 129715.42405 129559.405 0.12% 127 20s H 6 5 129678.60976 129559.405 0.09% 107 20s * 9 5 8 129669.00000 129559.405 0.08% 80.0 21s Cutting planes: Gomory: 2 Flow cover: 1 Explored 20 nodes (33210 simplex iterations) in 21.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.296690000000e+05, best bound 1.296690000000e+05, gap 0.0%