Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:50:23 2013 Optimize a model with 2320 rows, 8060 columns and 22100 nonzeros Presolve removed 20 rows and 20 columns Presolve time: 0.15s Presolved: 2300 rows, 8040 columns, 20080 nonzeros Variable types: 6040 continuous, 2000 integer (2000 binary) Root relaxation: objective 3.600389e+04, 494 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 36003.8892 0 4 - 36003.8892 - - 0s 0 0 36114.0451 0 4 - 36114.0451 - - 0s 0 0 36117.4531 0 5 - 36117.4531 - - 0s 0 0 36122.8090 0 4 - 36122.8090 - - 0s 0 0 36123.3168 0 4 - 36123.3168 - - 0s 0 0 36124.2613 0 6 - 36124.2613 - - 0s 0 0 36125.8296 0 6 - 36125.8296 - - 0s 0 0 36125.9213 0 6 - 36125.9213 - - 0s 0 0 36125.9213 0 6 - 36125.9213 - - 0s 0 2 36125.9213 0 6 - 36125.9213 - - 0s * 18 6 9 36202.395978 36202.3960 0.0% 35.1 1s Cutting planes: Gomory: 4 Implied bound: 27 Flow cover: 1 Explored 19 nodes (1524 simplex iterations) in 1.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.620239597844e+04, best bound 3.620239597844e+04, gap 0.0%