Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:06:04 2013 Optimize a model with 517 rows, 22137 columns and 44227 nonzeros Presolve time: 0.03s Presolved: 517 rows, 22137 columns, 44227 nonzeros Variable types: 22090 continuous, 47 integer (47 binary) Root relaxation: objective 4.411544e+04, 764 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 44115.4408 0 10 - 44115.4408 - - 0s H 0 0 47133.000000 44115.4408 6.40% - 0s H 0 0 44895.000000 44115.4408 1.74% - 0s 0 0 44687.4531 0 4 44895.0000 44687.4531 0.46% - 0s 0 0 44703.6699 0 3 44895.0000 44703.6699 0.43% - 0s 0 0 44705.9446 0 3 44895.0000 44705.9446 0.42% - 0s 0 0 44705.9730 0 3 44895.0000 44705.9730 0.42% - 0s 0 0 44706.4378 0 2 44895.0000 44706.4378 0.42% - 0s 0 0 44706.4431 0 3 44895.0000 44706.4431 0.42% - 0s 0 0 44709.6242 0 2 44895.0000 44709.6242 0.41% - 0s 0 0 44710.5507 0 1 44895.0000 44710.5507 0.41% - 0s 0 0 44710.5507 0 9 44895.0000 44710.5507 0.41% - 0s 0 0 44710.5507 0 4 44895.0000 44710.5507 0.41% - 0s 0 0 44710.5507 0 2 44895.0000 44710.5507 0.41% - 0s 0 0 44710.7586 0 1 44895.0000 44710.7586 0.41% - 0s 0 0 44710.7586 0 1 44895.0000 44710.7586 0.41% - 0s 0 0 44710.7586 0 1 44895.0000 44710.7586 0.41% - 0s H 0 0 44846.000000 44710.7586 0.30% - 0s 0 2 44716.5694 0 1 44846.0000 44716.5694 0.29% - 0s H 5 2 44809.000000 44765.9043 0.10% 25.8 0s * 6 3 5 44791.000000 44765.9043 0.06% 24.8 0s Cutting planes: Implied bound: 69 Flow cover: 3 Explored 11 nodes (2102 simplex iterations) in 0.76 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.479100000000e+04, best bound 4.479100000000e+04, gap 0.0%