Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:44:09 2013 Optimize a model with 2200 rows, 400200 columns and 800200 nonzeros Presolve time: 1.08s Presolved: 2200 rows, 400200 columns, 800200 nonzeros Variable types: 400000 continuous, 200 integer (200 binary) Root relaxation: objective 4.338241e+05, 13219 iterations, 1.72 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 433824.060 0 7 - 433824.060 - - 3s H 0 0 456789.00000 433824.060 5.03% - 4s H 0 0 441781.00000 433824.060 1.80% - 5s 0 0 434169.410 0 4 441781.000 434169.410 1.72% - 7s 0 0 434169.410 0 7 441781.000 434169.410 1.72% - 10s 0 0 434169.410 0 4 441781.000 434169.410 1.72% - 13s 0 0 434199.672 0 4 441781.000 434199.672 1.72% - 13s 0 0 434205.728 0 5 441781.000 434205.728 1.71% - 14s 0 0 434206.093 0 4 441781.000 434206.093 1.71% - 15s 0 0 434206.094 0 4 441781.000 434206.094 1.71% - 15s 0 0 434206.094 0 4 441781.000 434206.094 1.71% - 16s 0 2 434210.442 0 4 441781.000 434210.442 1.71% - 20s H 5 5 437813.39474 434368.703 0.79% 278 22s H 6 6 437550.00000 434368.703 0.73% 240 23s H 7 7 437453.00000 434368.703 0.71% 228 23s H 9 9 437317.00000 434368.703 0.67% 218 24s H 11 11 437238.00000 434368.703 0.66% 202 24s 12 14 434635.706 11 3 437238.000 434368.703 0.66% 206 25s H 14 14 437068.00000 434368.703 0.62% 186 25s H 15 11 434927.00000 434368.703 0.13% 181 25s * 16 9 14 434657.00000 434368.703 0.07% 179 26s Cutting planes: Implied bound: 168 Flow cover: 9 Explored 23 nodes (34005 simplex iterations) in 26.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.346570000000e+05, best bound 4.346242397112e+05, gap 0.0075%