Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:17 2013 Optimize a model with 540 rows, 1420 columns and 3610 nonzeros Presolve removed 30 rows and 20 columns Presolve time: 0.01s Presolved: 510 rows, 1400 columns, 3180 nonzeros Variable types: 1210 continuous, 190 integer (190 binary) Root relaxation: objective 2.199252e+04, 206 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 21992.5209 0 2 - 21992.5209 - - 0s 0 0 22059.8181 0 2 - 22059.8181 - - 0s 0 0 22072.1117 0 3 - 22072.1117 - - 0s 0 0 22079.4413 0 3 - 22079.4413 - - 0s 0 0 22091.2444 0 2 - 22091.2444 - - 0s 0 0 22092.8591 0 4 - 22092.8591 - - 0s 0 0 22093.6383 0 2 - 22093.6383 - - 0s 0 0 22096.3443 0 3 - 22096.3443 - - 0s H 0 0 22147.488584 22096.3443 0.23% - 0s 0 0 22096.3443 0 2 22147.4886 22096.3443 0.23% - 0s 0 0 22096.3443 0 3 22147.4886 22096.3443 0.23% - 0s 0 0 22096.3443 0 3 22147.4886 22096.3443 0.23% - 0s 0 2 22096.7872 0 3 22147.4886 22096.7872 0.23% - 0s H 3 3 22138.545297 22099.4081 0.18% 3.3 0s * 5 3 5 22134.781031 22130.1370 0.02% 6.6 0s Cutting planes: Gomory: 3 Flow cover: 6 Explored 11 nodes (533 simplex iterations) in 0.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.213478103149e+04, best bound 2.213306916626e+04, gap 0.0077%