Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:02 2013 Optimize a model with 12670 rows, 12320 columns and 49070 nonzeros Presolve removed 35 rows and 0 columns Presolve time: 0.05s Presolved: 12635 rows, 12320 columns, 49035 nonzeros Variable types: 12285 continuous, 35 integer (35 binary) Root relaxation: objective 3.507924e+04, 2509 iterations, 0.31 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 35079.2400 0 26 - 35079.2400 - - 0s H 0 0 38463.000000 35079.2400 8.80% - 0s 0 0 37456.3333 0 2 38463.0000 37456.3333 2.62% - 0s H 0 0 37776.000000 37456.3333 0.85% - 0s H 0 0 37518.000000 37456.3333 0.16% - 0s H 0 0 37505.000000 37456.3333 0.13% - 0s Cutting planes: Gomory: 3 Implied bound: 24 Explored 0 nodes (2932 simplex iterations) in 0.81 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.750500000000e+04, best bound 3.750500000000e+04, gap 0.0%