Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:07:59 2013 Optimize a model with 23616 rows, 23136 columns and 92256 nonzeros Presolve removed 48 rows and 0 columns Presolve time: 0.10s Presolved: 23568 rows, 23136 columns, 92208 nonzeros Variable types: 23088 continuous, 48 integer (48 binary) Root relaxation: objective 4.726366e+04, 3505 iterations, 1.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 47263.6553 0 35 - 47263.6553 - - 1s H 0 0 62201.000000 47263.6553 24.0% - 1s 0 0 57530.6867 0 5 62201.0000 57530.6867 7.51% - 3s H 0 0 59486.462575 57530.6867 3.29% - 3s H 0 0 58813.000000 57530.6867 2.18% - 3s 0 0 57541.8495 0 2 58813.0000 57541.8495 2.16% - 3s H 0 0 58533.150725 57541.8495 1.69% - 3s H 0 0 58116.000000 57541.8495 0.99% - 3s H 0 0 57632.000000 57541.8495 0.16% - 3s 0 0 57541.8495 0 34 57632.0000 57541.8495 0.16% - 5s 0 0 57595.8846 0 4 57632.0000 57595.8846 0.06% - 7s 0 0 57604.1793 0 2 57632.0000 57604.1793 0.05% - 7s 0 0 cutoff 0 57632.0000 57632.0000 0.0% - 7s Cutting planes: Implied bound: 34 Explored 0 nodes (10644 simplex iterations) in 7.47 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.763200000000e+04, best bound 5.763200000000e+04, gap 0.0%