Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:56:25 2013 Optimize a model with 13392 rows, 13032 columns and 51912 nonzeros Presolve removed 36 rows and 0 columns Presolve time: 0.06s Presolved: 13356 rows, 13032 columns, 51876 nonzeros Variable types: 12996 continuous, 36 integer (36 binary) Root relaxation: objective 3.986395e+04, 2347 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39863.9517 0 33 - 39863.9517 - - 0s H 0 0 46084.000000 39863.9517 13.5% - 0s 0 0 44951.0148 0 2 46084.0000 44951.0148 2.46% - 1s H 0 0 45830.340247 44951.0148 1.92% - 1s H 0 0 45547.000000 44951.0148 1.31% - 1s H 0 0 45110.000000 44951.0148 0.35% - 1s 0 0 45077.7430 0 2 45110.0000 45077.7430 0.07% - 1s 0 0 cutoff 0 45110.0000 45110.0000 0.0% - 1s Cutting planes: Implied bound: 30 Explored 0 nodes (3520 simplex iterations) in 1.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.511000000000e+04, best bound 4.511000000000e+04, gap 0.0%