Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:18 2013 Optimize a model with 374 rows, 11594 columns and 23154 nonzeros Presolve time: 0.01s Presolved: 374 rows, 11594 columns, 23154 nonzeros Variable types: 11560 continuous, 34 integer (34 binary) Root relaxation: objective 4.689943e+04, 815 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46899.4322 0 5 - 46899.4322 - - 0s H 0 0 47746.000000 46899.4322 1.77% - 0s 0 0 47032.2915 0 2 47746.0000 47032.2915 1.49% - 0s H 0 0 47672.960000 47032.2915 1.34% - 0s H 0 0 47087.000000 47032.2915 0.12% - 0s 0 0 cutoff 0 47087.0000 47087.0000 0.0% - 0s Cutting planes: Implied bound: 39 Flow cover: 3 Explored 0 nodes (879 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.708700000000e+04, best bound 4.708700000000e+04, gap 0.0%