Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:23 2013 Optimize a model with 360 rows, 1430 columns and 3450 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.01s Presolved: 350 rows, 1420 columns, 3240 nonzeros Variable types: 1220 continuous, 200 integer (200 binary) Root relaxation: objective 1.997658e+04, 137 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19976.5790 0 4 - 19976.5790 - - 0s 0 0 20056.4957 0 4 - 20056.4957 - - 0s 0 0 20056.4957 0 4 - 20056.4957 - - 0s H 0 0 20727.443326 20056.4957 3.24% - 0s 0 2 20056.4957 0 4 20727.4433 20056.4957 3.24% - 0s * 15 5 8 20160.951892 20155.1880 0.03% 9.5 0s * 17 2 9 20158.174631 20158.1746 0.0% 8.6 0s Cutting planes: Gomory: 2 Implied bound: 10 Explored 18 nodes (392 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.015817463139e+04, best bound 2.015817463139e+04, gap 0.0%