Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:55:35 2013 Optimize a model with 680 rows, 5240 columns and 11220 nonzeros Presolve removed 40 rows and 60 columns Presolve time: 0.02s Presolved: 640 rows, 5180 columns, 10360 nonzeros Variable types: 4800 continuous, 380 integer (380 binary) Root relaxation: objective 4.642213e+04, 510 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 46422.1265 0 3 - 46422.1265 - - 0s 0 0 46445.9561 0 4 - 46445.9561 - - 0s 0 0 46446.7400 0 5 - 46446.7400 - - 0s 0 0 46447.9283 0 4 - 46447.9283 - - 0s 0 0 46447.9283 0 4 - 46447.9283 - - 0s 0 0 46447.9283 0 4 - 46447.9283 - - 0s 0 0 46447.9283 0 4 - 46447.9283 - - 0s H 0 0 47377.636012 46447.9283 1.96% - 0s 0 2 46460.7008 0 4 47377.6360 46460.7008 1.94% - 0s * 19 19 15 47123.796598 46505.7588 1.31% 12.3 0s * 22 15 14 47097.762112 46505.7588 1.26% 11.9 0s H 27 18 47079.995306 46510.1414 1.21% 12.5 0s * 37 27 13 47041.725856 46510.1414 1.13% 13.5 0s * 42 23 13 47017.985609 46510.1414 1.08% 13.4 0s H 54 17 46835.024957 46514.0274 0.69% 14.0 0s * 58 16 12 46833.104537 46514.0274 0.68% 14.3 0s H 81 33 46826.971165 46531.2027 0.63% 17.2 0s * 89 30 12 46817.437441 46531.2027 0.61% 17.1 0s H 135 23 46797.785654 46604.0961 0.41% 16.6 0s * 200 20 11 46778.790183 46642.8638 0.29% 16.2 0s * 231 15 10 46757.920900 46651.9434 0.23% 15.9 0s * 234 12 9 46757.522593 46651.9434 0.23% 16.0 0s * 265 4 10 46743.553085 46704.5257 0.08% 15.9 0s Cutting planes: Gomory: 3 Flow cover: 10 Explored 269 nodes (4910 simplex iterations) in 0.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.674355308496e+04, best bound 4.673989184540e+04, gap 0.0078%