Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:29:53 2012 Optimize a model with 3255 rows, 3240 columns and 11830 nonzeros Presolve removed 380 rows and 103 columns Presolve time: 0.02s Presolved: 2875 rows, 3137 columns, 11045 nonzeros Variable types: 2796 continuous, 341 integer (341 binary) Root relaxation: objective 1.276455e+05, 527 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 127645.464 0 14 - 127645.464 - - 0s H 0 0 130213.00000 127645.464 1.97% - 0s H 0 0 127950.00000 127645.464 0.24% - 0s 0 0 127666.142 0 19 127950.000 127666.142 0.22% - 0s 0 0 127673.416 0 28 127950.000 127673.416 0.22% - 0s 0 0 127677.080 0 32 127950.000 127677.080 0.21% - 0s 0 0 127680.423 0 33 127950.000 127680.423 0.21% - 0s 0 0 127682.093 0 29 127950.000 127682.093 0.21% - 0s H 0 0 127789.00000 127682.093 0.08% - 0s 0 0 127682.093 0 14 127789.000 127682.093 0.08% - 0s 0 0 127682.093 0 23 127789.000 127682.093 0.08% - 0s 0 0 127690.033 0 22 127789.000 127690.033 0.08% - 0s 0 0 127690.481 0 30 127789.000 127690.481 0.08% - 0s 0 0 127690.804 0 29 127789.000 127690.804 0.08% - 0s 0 0 127690.852 0 31 127789.000 127690.852 0.08% - 0s 0 0 127690.986 0 31 127789.000 127690.986 0.08% - 0s 0 0 127696.531 0 25 127789.000 127696.531 0.07% - 0s 0 2 127696.879 0 25 127789.000 127696.879 0.07% - 0s * 53 9 10 127750.00000 127734.767 0.01% 3.8 0s * 55 5 8 127745.00000 127736.580 0.01% 3.8 0s Cutting planes: Gomory: 4 Cover: 1 Clique: 1 Flow cover: 10 Explored 56 nodes (1100 simplex iterations) in 0.31 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.277450000000e+05, best bound 1.277365804750e+05, gap 0.0066%