Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:33:00 2013 Optimize a model with 2090 rows, 361190 columns and 722190 nonzeros Presolve time: 1.53s Presolved: 2090 rows, 361190 columns, 722190 nonzeros Variable types: 361000 continuous, 190 integer (190 binary) Root relaxation: objective 4.148415e+05, 13042 iterations, 1.67 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 414841.480 0 6 - 414841.480 - - 3s H 0 0 454543.00000 414841.480 8.73% - 5s H 0 0 416946.00000 414841.480 0.50% - 6s 0 0 414956.087 0 2 416946.000 414956.087 0.48% - 7s 0 0 414956.087 0 6 416946.000 414956.087 0.48% - 9s 0 0 414956.087 0 2 416946.000 414956.087 0.48% - 10s 0 0 414979.315 0 2 416946.000 414979.315 0.47% - 10s 0 0 414987.334 0 2 416946.000 414987.334 0.47% - 11s 0 0 414989.173 0 1 416946.000 414989.173 0.47% - 11s 0 2 414989.401 0 1 416946.000 414989.401 0.47% - 12s 7 8 415395.620 7 3 416946.000 415200.304 0.42% 191 15s H 11 7 415657.00000 415200.304 0.11% 167 15s H 12 5 415652.00000 415200.304 0.11% 166 16s * 14 5 14 415591.00000 415200.304 0.09% 146 16s * 23 2 10 415589.00000 415461.250 0.03% 177 18s * 25 0 11 415518.00000 415518.000 0.0% 168 18s Cutting planes: Implied bound: 83 Flow cover: 4 Explored 26 nodes (26591 simplex iterations) in 18.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.155180000000e+05, best bound 4.155180000000e+05, gap 0.0%