Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:30:39 2013 Optimize a model with 35459 rows, 34869 columns and 139299 nonzeros Presolve removed 1816 rows and 0 columns Presolve time: 0.20s Presolved: 33643 rows, 34869 columns, 135667 nonzeros Variable types: 34810 continuous, 59 integer (59 binary) Root relaxation: objective 6.532500e+04, 5528 iterations, 0.63 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 65325.0000 0 1 - 65325.0000 - - 0s H 0 0 65375.000000 65325.0000 0.08% - 0s H 0 0 65365.000000 65325.0000 0.06% - 1s 0 0 65325.1011 0 2 65365.0000 65325.1011 0.06% - 1s 0 0 65325.1011 0 1 65365.0000 65325.1011 0.06% - 1s 0 0 65325.8088 0 2 65365.0000 65325.8088 0.06% - 1s 0 0 65326.9539 0 2 65365.0000 65326.9539 0.06% - 1s 0 0 65363.8824 0 1 65365.0000 65363.8824 0.00% - 1s Cutting planes: Gomory: 1 Flow cover: 2 Explored 0 nodes (6778 simplex iterations) in 1.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.536500000000e+04, best bound 6.536388235294e+04, gap 0.0017%