Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:30:44 2013 Optimize a model with 2324 rows, 576 columns and 7200 nonzeros Presolve removed 525 rows and 303 columns Presolve time: 0.01s Presolved: 1799 rows, 273 columns, 5565 nonzeros Variable types: 8 continuous, 265 integer (265 binary) Found heuristic solution: objective 16083.000000 Root relaxation: objective 1.346045e+04, 863 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 13460.4516 0 7 16083.0000 13460.4516 16.3% - 0s H 0 0 13472.000000 13460.4516 0.09% - 0s 0 0 13463.4678 0 12 13472.0000 13463.4678 0.06% - 0s 0 0 13463.4678 0 7 13472.0000 13463.4678 0.06% - 0s 0 0 13464.0909 0 11 13472.0000 13464.0909 0.06% - 0s 0 0 13466.7265 0 15 13472.0000 13466.7265 0.04% - 0s 0 0 13467.8594 0 13 13472.0000 13467.8594 0.03% - 0s 0 0 13467.9534 0 11 13472.0000 13467.9534 0.03% - 0s 0 0 13467.9534 0 12 13472.0000 13467.9534 0.03% - 0s 0 0 13468.7957 0 13 13472.0000 13468.7957 0.02% - 0s 0 0 13469.6735 0 7 13472.0000 13469.6735 0.02% - 0s H 0 0 13471.000000 13469.6735 0.01% - 0s Cutting planes: MIR: 7 Explored 0 nodes (977 simplex iterations) in 0.06 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.347100000000e+04, best bound 1.347000000000e+04, gap 0.0074%