Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:30:41 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 9104 rows and 0 columns Presolve time: 0.97s Presolved: 113106 rows, 121110 columns, 465902 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20448 1.4761520e+05 1.311525e+04 0.000000e+00 5s 26443 1.5844963e+05 0.000000e+00 0.000000e+00 8s Root relaxation: objective 1.584496e+05, 26443 iterations, 8.36 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 158449.633 0 5 - 158449.633 - - 9s H 0 0 163206.00000 158449.633 2.91% - 10s 0 0 158474.038 0 7 163206.000 158474.038 2.90% - 11s 0 0 158474.038 0 7 163206.000 158474.038 2.90% - 12s 0 0 158474.038 0 7 163206.000 158474.038 2.90% - 13s H 0 0 159834.00654 158474.038 0.85% - 17s H 0 0 159464.00000 158474.038 0.62% - 17s 0 0 158474.038 0 5 159464.000 158474.038 0.62% - 27s 0 0 158474.038 0 7 159464.000 158474.038 0.62% - 28s 0 0 158474.038 0 7 159464.000 158474.038 0.62% - 29s 0 2 158474.390 0 7 159464.000 158474.390 0.62% - 33s H 7 7 159348.39394 158635.741 0.45% 308 34s 7 9 158919.394 5 1 159348.394 158635.741 0.45% 309 35s H 11 10 159272.06780 158635.741 0.40% 239 35s H 12 10 159238.21739 158635.741 0.38% 225 35s * 14 9 11 159128.00000 158635.741 0.31% 204 35s * 36 6 15 158991.00000 158869.495 0.08% 168 38s Cutting planes: Gomory: 3 Flow cover: 3 Explored 55 nodes (47362 simplex iterations) in 39.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.589910000000e+05, best bound 1.589806666667e+05, gap 0.0065%