Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:28:26 2013 Optimize a model with 122210 rows, 121110 columns and 484110 nonzeros Presolve removed 7141 rows and 0 columns Presolve time: 0.98s Presolved: 115069 rows, 121110 columns, 469828 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 18817 1.3316690e+05 1.609938e+04 0.000000e+00 5s 24707 1.4593469e+05 2.187096e+03 0.000000e+00 10s 27620 1.4682595e+05 0.000000e+00 0.000000e+00 13s Root relaxation: objective 1.468259e+05, 27620 iterations, 12.75 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 146825.945 0 3 - 146825.945 - - 14s H 0 0 152074.00000 146825.945 3.45% - 14s H 0 0 148715.00000 146825.945 1.27% - 16s 0 0 146829.259 0 4 148715.000 146829.259 1.27% - 16s 0 0 146829.456 0 4 148715.000 146829.456 1.27% - 17s 0 0 146830.039 0 4 148715.000 146830.039 1.27% - 18s 0 0 146830.039 0 3 148715.000 146830.039 1.27% - 33s 0 0 146831.018 0 4 148715.000 146831.018 1.27% - 34s 0 0 146831.028 0 4 148715.000 146831.028 1.27% - 34s 0 0 146831.028 0 4 148715.000 146831.028 1.27% - 35s 0 2 146846.974 0 4 148715.000 146846.974 1.26% - 39s 3 5 147271.168 2 1 148715.000 147271.168 0.97% 433 40s H 4 4 148272.70000 147271.168 0.68% 325 40s H 15 11 148186.00000 147309.919 0.59% 243 43s H 18 13 148146.00000 147309.919 0.56% 213 43s * 22 10 19 148078.00000 147309.919 0.52% 177 43s 28 11 147799.683 4 1 148078.000 147373.409 0.48% 249 45s * 49 0 4 147658.00000 147658.000 0.0% 222 48s Cutting planes: Gomory: 1 Flow cover: 4 Explored 50 nodes (53792 simplex iterations) in 48.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.476580000000e+05, best bound 1.476580000000e+05, gap 0.0%