Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:02:28 2013 Optimize a model with 484 rows, 19404 columns and 38764 nonzeros Presolve time: 0.03s Presolved: 484 rows, 19404 columns, 38764 nonzeros Variable types: 19360 continuous, 44 integer (44 binary) Root relaxation: objective 4.607329e+04, 729 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46073.2890 0 7 - 46073.2890 - - 0s H 0 0 47490.000000 46073.2890 2.98% - 0s H 0 0 46476.000000 46073.2890 0.87% - 0s 0 0 46221.0411 0 3 46476.0000 46221.0411 0.55% - 0s H 0 0 46450.000000 46221.0411 0.49% - 0s 0 0 46230.2721 0 3 46450.0000 46230.2721 0.47% - 0s 0 0 46230.2721 0 3 46450.0000 46230.2721 0.47% - 0s 0 0 46339.1212 0 1 46450.0000 46339.1212 0.24% - 0s H 0 0 46390.000000 46339.1212 0.11% - 0s 0 0 46339.1212 0 5 46390.0000 46339.1212 0.11% - 0s 0 0 46339.1212 0 1 46390.0000 46339.1212 0.11% - 0s 0 0 46339.1212 0 1 46390.0000 46339.1212 0.11% - 0s 0 0 46339.7273 0 1 46390.0000 46339.7273 0.11% - 0s 0 0 46382.6239 0 3 46390.0000 46382.6239 0.02% - 0s 0 0 46387.0000 0 1 46390.0000 46387.0000 0.01% - 0s Cutting planes: Implied bound: 26 Explored 0 nodes (1831 simplex iterations) in 0.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.639000000000e+04, best bound 4.638700000000e+04, gap 0.0065%