Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:55:25 2013 Optimize a model with 11968 rows, 11628 columns and 46308 nonzeros Presolve removed 34 rows and 0 columns Presolve time: 0.05s Presolved: 11934 rows, 11628 columns, 46274 nonzeros Variable types: 11594 continuous, 34 integer (34 binary) Root relaxation: objective 3.617266e+04, 2513 iterations, 0.52 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36172.6590 0 32 - 36172.6590 - - 0s H 0 0 43277.000000 36172.6590 16.4% - 0s 0 0 42331.7162 0 2 43277.0000 42331.7162 2.18% - 1s H 0 0 42390.450038 42331.7162 0.14% - 1s H 0 0 42357.000000 42331.7162 0.06% - 1s 0 0 42333.3684 0 1 42357.0000 42333.3684 0.06% - 1s * 0 0 0 42356.000000 42356.0000 0.0% - 1s Cutting planes: Implied bound: 31 Explored 0 nodes (3410 simplex iterations) in 1.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.235600000000e+04, best bound 4.235600000000e+04, gap 0.0%