Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:48:35 2013 Optimize a model with 226650 rows, 225150 columns and 900150 nonzeros Presolve removed 3022 rows and 0 columns Presolve time: 2.29s Presolved: 223628 rows, 225150 columns, 894106 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 20612 1.3523068e+05 4.308293e+04 0.000000e+00 5s 28680 1.5314611e+05 5.358531e+04 0.000000e+00 10s 36506 1.9158100e+05 1.194335e+05 0.000000e+00 15s 41114 2.2081553e+05 4.194547e+04 0.000000e+00 20s 45210 2.3416137e+05 1.654683e+04 0.000000e+00 25s 50355 2.4087331e+05 6.915181e+03 0.000000e+00 30s 53683 2.4276214e+05 4.996766e+03 0.000000e+00 35s 57284 2.4364542e+05 3.170647e+01 0.000000e+00 41s 57501 2.4365006e+05 0.000000e+00 0.000000e+00 41s Root relaxation: objective 2.436501e+05, 57501 iterations, 41.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 243650.062 0 4 - 243650.062 - - 44s H 0 0 248416.00000 243650.062 1.92% - 46s H 0 0 245360.00000 243650.062 0.70% - 48s 0 0 243650.338 0 5 245360.000 243650.338 0.70% - 49s 0 0 243650.338 0 5 245360.000 243650.338 0.70% - 53s 0 0 243650.338 0 4 245360.000 243650.338 0.70% - 95s 0 0 243650.338 0 5 245360.000 243650.338 0.70% - 97s 0 0 243650.338 0 5 245360.000 243650.338 0.70% - 99s 0 2 243658.156 0 5 245360.000 243658.156 0.69% - 110s 6 8 243962.149 6 4 245360.000 243785.477 0.64% 455 115s H 9 9 244683.26190 243785.477 0.37% 333 116s H 10 9 244421.32432 243785.477 0.26% 335 116s H 11 10 244305.53583 243785.477 0.21% 314 116s * 19 9 18 244197.00000 243785.477 0.17% 206 118s 22 8 244111.391 1 2 244197.000 243892.292 0.12% 289 120s H 33 3 244178.95238 244099.140 0.03% 257 123s * 37 3 15 244154.00000 244099.140 0.02% 233 123s Cutting planes: Gomory: 1 Flow cover: 3 Explored 46 nodes (96387 simplex iterations) in 124.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.441540000000e+05, best bound 2.441540000000e+05, gap 0.0%