Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:00:57 2013 Optimize a model with 18144 rows, 17724 columns and 70644 nonzeros Presolve removed 42 rows and 0 columns Presolve time: 0.08s Presolved: 18102 rows, 17724 columns, 70602 nonzeros Variable types: 17682 continuous, 42 integer (42 binary) Root relaxation: objective 3.938942e+04, 2383 iterations, 0.50 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 39389.4186 0 37 - 39389.4186 - - 0s H 0 0 49010.000000 39389.4186 19.6% - 0s 0 0 44871.7805 0 5 49010.0000 44871.7805 8.44% - 1s H 0 0 45764.639552 44871.7805 1.95% - 1s H 0 0 45354.000000 44871.7805 1.06% - 1s H 0 0 45133.000000 44871.7805 0.58% - 1s 0 0 44935.6531 0 4 45133.0000 44935.6531 0.44% - 1s H 0 0 45031.000000 44935.6531 0.21% - 1s 0 2 44973.8207 0 4 45031.0000 44973.8207 0.13% - 1s * 6 4 4 45015.000000 44992.0400 0.05% 26.3 2s * 8 2 6 45014.000000 44992.0400 0.05% 26.5 2s H 9 1 44997.880000 44992.0400 0.01% 23.6 2s * 10 1 2 44993.000000 44993.0000 0.0% 28.0 2s Cutting planes: Implied bound: 35 Explored 11 nodes (3898 simplex iterations) in 2.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.499300000000e+04, best bound 4.499300000000e+04, gap 0.0%