Gurobi 5.0.1 (linux64) logging started Mon Feb 4 18:55:57 2013 Optimize a model with 26289 rows, 2916 columns and 80190 nonzeros Presolve removed 2690 rows and 1483 columns Presolve time: 0.19s Presolved: 23599 rows, 1433 columns, 72166 nonzeros Variable types: 27 continuous, 1406 integer (1406 binary) Found heuristic solution: objective 62324.000000 Root relaxation: objective 4.532618e+04, 10345 iterations, 0.61 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 45326.1818 0 11 62324.0000 45326.1818 27.3% - 0s H 0 0 45334.000000 45326.1818 0.02% - 0s H 0 0 45331.000000 45326.1818 0.01% - 0s 0 0 45326.1818 0 12 45331.0000 45326.1818 0.01% - 1s 0 0 45326.1818 0 12 45331.0000 45326.1818 0.01% - 1s 0 0 45326.1818 0 15 45331.0000 45326.1818 0.01% - 1s 0 0 45326.1818 0 15 45331.0000 45326.1818 0.01% - 1s 0 0 45326.1818 0 23 45331.0000 45326.1818 0.01% - 1s 0 0 45326.1818 0 23 45331.0000 45326.1818 0.01% - 1s 0 0 45326.1818 0 13 45331.0000 45326.1818 0.01% - 1s H 0 0 45330.000000 45326.1818 0.01% - 1s Cutting planes: MIR: 1 Explored 0 nodes (11293 simplex iterations) in 1.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.533000000000e+04, best bound 4.532700000000e+04, gap 0.0066%