Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:03:16 2013 Optimize a model with 1080 rows, 2265 columns and 7525 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.12s Presolved: 1075 rows, 2260 columns, 6520 nonzeros Variable types: 1260 continuous, 1000 integer (1000 binary) Root relaxation: objective 1.704455e+04, 78 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 17044.5499 0 2 - 17044.5499 - - 0s 0 0 17051.1498 0 2 - 17051.1498 - - 0s 0 0 17053.5555 0 2 - 17053.5555 - - 0s 0 0 17054.7882 0 2 - 17054.7882 - - 0s 0 0 17055.3162 0 2 - 17055.3162 - - 0s 0 0 17055.7845 0 4 - 17055.7845 - - 0s 0 0 17056.7467 0 2 - 17056.7467 - - 0s 0 0 17056.9565 0 2 - 17056.9565 - - 0s 0 0 17057.3888 0 4 - 17057.3888 - - 0s 0 0 17057.9682 0 2 - 17057.9682 - - 0s 0 0 17058.0608 0 3 - 17058.0608 - - 0s 0 0 17058.7758 0 7 - 17058.7758 - - 0s 0 0 17059.0426 0 2 - 17059.0426 - - 0s 0 0 17059.0529 0 8 - 17059.0529 - - 0s 0 0 17059.1274 0 8 - 17059.1274 - - 0s 0 0 17059.1285 0 4 - 17059.1285 - - 0s 0 0 17059.2211 0 8 - 17059.2211 - - 0s 0 0 17059.2551 0 8 - 17059.2551 - - 0s 0 0 17059.2749 0 8 - 17059.2749 - - 0s 0 0 17059.2749 0 8 - 17059.2749 - - 0s 0 2 17059.2749 0 8 - 17059.2749 - - 0s * 7 2 4 17091.445701 17091.4457 0.0% 12.0 0s Cutting planes: Gomory: 2 Implied bound: 13 Flow cover: 5 Explored 8 nodes (302 simplex iterations) in 0.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.709144570108e+04, best bound 1.709144570108e+04, gap 0.0%