Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:58:10 2013 Optimize a model with 429 rows, 15249 columns and 30459 nonzeros Presolve time: 0.02s Presolved: 429 rows, 15249 columns, 30459 nonzeros Variable types: 15210 continuous, 39 integer (39 binary) Root relaxation: objective 4.298099e+04, 762 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 42980.9922 0 8 - 42980.9922 - - 0s H 0 0 44401.000000 42980.9922 3.20% - 0s H 0 0 43145.000000 42980.9922 0.38% - 0s 0 0 43105.3061 0 1 43145.0000 43105.3061 0.09% - 0s 0 0 43105.3061 0 1 43145.0000 43105.3061 0.09% - 0s Cutting planes: Implied bound: 25 Explored 0 nodes (861 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.314500000000e+04, best bound 4.314500000000e+04, gap 0.0%