Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:48:32 2013 Optimize a model with 704 rows, 41024 columns and 81984 nonzeros Presolve time: 0.06s Presolved: 704 rows, 41024 columns, 81984 nonzeros Variable types: 40960 continuous, 64 integer (64 binary) Root relaxation: objective 6.540292e+04, 1561 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65402.9170 0 7 - 65402.9170 - - 0s H 0 0 67949.000000 65402.9170 3.75% - 0s H 0 0 65739.000000 65402.9170 0.51% - 0s 0 0 65530.6461 0 7 65739.0000 65530.6461 0.32% - 0s 0 0 65530.6461 0 7 65739.0000 65530.6461 0.32% - 0s 0 0 65532.8279 0 7 65739.0000 65532.8279 0.31% - 0s 0 0 65567.5289 0 6 65739.0000 65567.5289 0.26% - 0s 0 0 65569.8976 0 6 65739.0000 65569.8976 0.26% - 0s 0 0 65572.1390 0 6 65739.0000 65572.1390 0.25% - 0s 0 0 65589.3121 0 5 65739.0000 65589.3121 0.23% - 0s 0 2 65596.7258 0 5 65739.0000 65596.7258 0.22% - 0s * 8 4 7 65697.000000 65659.0690 0.06% 42.0 1s Cutting planes: Implied bound: 103 Flow cover: 13 Explored 13 nodes (3508 simplex iterations) in 1.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.569700000000e+04, best bound 6.569700000000e+04, gap 0.0%