Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:39:33 2013 Optimize a model with 2200 rows, 400200 columns and 800200 nonzeros Presolve time: 1.10s Presolved: 2200 rows, 400200 columns, 800200 nonzeros Variable types: 400000 continuous, 200 integer (200 binary) Root relaxation: objective 4.077303e+05, 12995 iterations, 1.69 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 407730.285 0 7 - 407730.285 - - 3s H 0 0 430835.00000 407730.285 5.36% - 4s H 0 0 428163.00000 407730.285 4.77% - 5s 0 0 408200.730 0 5 428163.000 408200.730 4.66% - 7s 0 0 408234.618 0 7 428163.000 408234.618 4.65% - 8s 0 0 408236.494 0 4 428163.000 408236.494 4.65% - 9s 0 0 408236.494 0 4 428163.000 408236.494 4.65% - 10s 0 0 408238.384 0 4 428163.000 408238.384 4.65% - 11s 0 0 408243.086 0 4 428163.000 408243.086 4.65% - 12s 0 0 408243.542 0 4 428163.000 408243.542 4.65% - 12s 0 0 408243.542 0 4 428163.000 408243.542 4.65% - 13s H 0 0 408760.00000 408243.542 0.13% - 16s 0 0 408243.542 0 7 408760.000 408243.542 0.13% - 18s 0 0 408243.542 0 5 408760.000 408243.542 0.13% - 19s 0 0 408243.542 0 5 408760.000 408243.542 0.13% - 20s 0 0 408243.542 0 4 408760.000 408243.542 0.13% - 20s 0 0 408243.542 0 4 408760.000 408243.542 0.13% - 20s 0 0 408243.542 0 4 408760.000 408243.542 0.13% - 20s 0 0 408243.542 0 4 408760.000 408243.542 0.13% - 21s 0 0 408243.542 0 4 408760.000 408243.542 0.13% - 21s 0 2 408258.672 0 4 408760.000 408258.672 0.12% - 23s 6 7 408502.057 5 3 408760.000 408357.475 0.10% 200 25s H 27 4 408733.00000 408611.333 0.03% 137 28s Cutting planes: Implied bound: 209 Flow cover: 7 Explored 36 nodes (24154 simplex iterations) in 28.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.087330000000e+05, best bound 4.086941410019e+05, gap 0.0095%