Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:45 2013 Optimize a model with 660 rows, 2030 columns and 5550 nonzeros Presolve removed 10 rows and 10 columns Presolve time: 0.04s Presolved: 650 rows, 2020 columns, 5040 nonzeros Variable types: 1520 continuous, 500 integer (500 binary) Root relaxation: objective 2.207062e+04, 139 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 22070.6191 0 2 - 22070.6191 - - 0s 0 0 22109.6205 0 4 - 22109.6205 - - 0s 0 0 22125.8363 0 2 - 22125.8363 - - 0s 0 0 22125.8363 0 2 - 22125.8363 - - 0s 0 0 22125.8363 0 2 - 22125.8363 - - 0s 0 0 22148.2283 0 2 - 22148.2283 - - 0s 0 0 22148.2283 0 2 - 22148.2283 - - 0s H 0 0 23152.772625 22148.2283 4.34% - 0s 0 1 22191.7315 0 2 23152.7726 22191.7315 4.15% - 0s * 20 6 14 22333.127867 22333.1279 0.0% 6.2 0s Cutting planes: Gomory: 2 Implied bound: 9 Explored 21 nodes (451 simplex iterations) in 0.19 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.233312786709e+04, best bound 2.233312786709e+04, gap 0.0%