Gurobi 5.0.1 (linux64) logging started Wed Dec 19 14:01:13 2012 Optimize a model with 442 rows, 441 columns and 1922 nonzeros Presolve removed 326 rows and 298 columns Presolve time: 0.00s Presolved: 116 rows, 143 columns, 864 nonzeros Variable types: 14 continuous, 129 integer (129 binary) Root relaxation: objective 3.652946e+02, 68 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 365.29459 0 25 - 365.29459 - - 0s 0 0 374.59529 0 22 - 374.59529 - - 0s 0 0 374.59529 0 22 - 374.59529 - - 0s 0 0 374.59529 0 18 - 374.59529 - - 0s 0 0 374.59529 0 18 - 374.59529 - - 0s 0 0 374.59529 0 18 - 374.59529 - - 0s H 0 0 398.0000000 374.59529 5.88% - 0s H 0 0 396.0000000 374.59529 5.41% - 0s 0 0 374.59529 0 25 396.00000 374.59529 5.41% - 0s 0 0 375.59310 0 22 396.00000 375.59310 5.15% - 0s 0 0 375.59310 0 22 396.00000 375.59310 5.15% - 0s 0 0 375.59310 0 18 396.00000 375.59310 5.15% - 0s 0 0 375.59310 0 18 396.00000 375.59310 5.15% - 0s 0 0 375.59310 0 18 396.00000 375.59310 5.15% - 0s H 0 0 393.0000000 375.59310 4.43% - 0s H 0 0 392.0000000 375.59310 4.19% - 0s 0 2 375.65986 0 18 392.00000 375.65986 4.17% - 0s * 8 6 7 391.0000000 378.00000 3.32% 6.6 0s * 11 5 8 388.0000000 378.00000 2.58% 7.0 0s Cutting planes: Gomory: 3 Cover: 8 Implied bound: 7 MIR: 11 Explored 51 nodes (594 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.880000000000e+02, best bound 3.880000000000e+02, gap 0.0%