Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:27:52 2013 Optimize a model with 2580 rows, 5265 columns and 18025 nonzeros Presolve removed 5 rows and 5 columns Presolve time: 0.13s Presolved: 2575 rows, 5260 columns, 15520 nonzeros Variable types: 2760 continuous, 2500 integer (2500 binary) Root relaxation: objective 9.876190e+03, 48 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 9876.18952 0 2 - 9876.18952 - - 0s 0 0 9881.11321 0 4 - 9881.11321 - - 0s 0 0 9883.04448 0 4 - 9883.04448 - - 0s 0 0 9883.86536 0 2 - 9883.86536 - - 0s 0 0 9884.69882 0 2 - 9884.69882 - - 0s 0 0 9886.10433 0 4 - 9886.10433 - - 0s 0 0 9887.24018 0 6 - 9887.24018 - - 0s 0 0 9887.84963 0 2 - 9887.84963 - - 0s 0 0 9887.89211 0 2 - 9887.89211 - - 0s 0 0 9887.92906 0 7 - 9887.92906 - - 0s 0 0 9889.13598 0 2 - 9889.13598 - - 0s 0 0 9889.21541 0 9 - 9889.21541 - - 0s 0 0 9889.42232 0 5 - 9889.42232 - - 0s 0 0 9890.24015 0 2 - 9890.24015 - - 0s 0 0 9890.38102 0 10 - 9890.38102 - - 0s 0 0 9890.50743 0 8 - 9890.50743 - - 0s 0 0 9890.61303 0 8 - 9890.61303 - - 0s 0 0 9890.61303 0 8 - 9890.61303 - - 0s H 0 0 9990.9086841 9890.61303 1.00% - 0s 0 2 9891.20105 0 3 9990.90868 9891.20105 1.00% - 1s * 19 3 10 9942.9596239 9942.95765 0.00% 39.8 1s Cutting planes: Gomory: 1 Implied bound: 19 Flow cover: 8 Explored 20 nodes (928 simplex iterations) in 1.38 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.942959623924e+03, best bound 9.942957647485e+03, gap 0.0000%