Gurobi 5.0.1 (linux64) logging started Wed Apr 24 12:18:49 2013 Optimize a model with 1760 rows, 256160 columns and 512160 nonzeros Presolve time: 0.69s Presolved: 1760 rows, 256160 columns, 512160 nonzeros Variable types: 256000 continuous, 160 integer (160 binary) Root relaxation: objective 2.915266e+05, 8770 iterations, 0.76 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 291526.619 0 6 - 291526.619 - - 1s H 0 0 308316.00000 291526.619 5.45% - 2s H 0 0 293059.00000 291526.619 0.52% - 2s 0 0 291689.185 0 4 293059.000 291689.185 0.47% - 3s 0 0 291689.185 0 6 293059.000 291689.185 0.47% - 4s 0 0 291689.185 0 5 293059.000 291689.185 0.47% - 5s 0 0 291716.369 0 4 293059.000 291716.369 0.46% - 5s 0 0 291722.782 0 3 293059.000 291722.782 0.46% - 5s 0 0 291722.782 0 3 293059.000 291722.782 0.46% - 6s 0 0 291722.782 0 3 293059.000 291722.782 0.46% - 6s 0 0 291722.782 0 3 293059.000 291722.782 0.46% - 6s 0 0 291722.782 0 3 293059.000 291722.782 0.46% - 6s 0 2 291761.090 0 3 293059.000 291761.090 0.44% - 7s H 10 8 292270.00000 291928.833 0.12% 125 9s H 12 6 292246.00000 291928.833 0.11% 107 9s * 13 5 12 292202.00000 291928.833 0.09% 100 9s 17 5 292103.357 5 1 292202.000 292103.357 0.03% 107 10s Cutting planes: Implied bound: 83 Flow cover: 5 Explored 22 nodes (17413 simplex iterations) in 10.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.922020000000e+05, best bound 2.921931078431e+05, gap 0.0030%