Gurobi 5.0.1 (linux64) logging started Tue Dec 25 15:24:38 2012 Optimize a model with 442 rows, 441 columns and 2006 nonzeros Presolve removed 121 rows and 76 columns Presolve time: 0.02s Presolved: 321 rows, 365 columns, 3884 nonzeros Variable types: 20 continuous, 345 integer (345 binary) Root relaxation: objective 1.336781e+02, 90 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 133.67811 0 37 - 133.67811 - - 0s 0 0 145.81588 0 44 - 145.81588 - - 0s 0 0 146.62334 0 40 - 146.62334 - - 0s 0 0 147.62585 0 40 - 147.62585 - - 0s 0 0 147.62585 0 40 - 147.62585 - - 0s 0 0 147.62585 0 36 - 147.62585 - - 0s 0 0 147.62585 0 36 - 147.62585 - - 0s 0 0 147.62585 0 36 - 147.62585 - - 0s 0 0 147.62585 0 36 - 147.62585 - - 0s 0 0 147.62585 0 36 - 147.62585 - - 0s 0 2 147.62585 0 36 - 147.62585 - - 0s H 608 425 256.0000000 161.74181 36.8% 8.8 0s H 626 415 222.0000000 168.75000 24.0% 8.5 1s H 713 422 210.0000000 169.31071 19.4% 11.9 1s * 743 397 46 205.0000000 169.31071 17.4% 11.7 1s * 754 333 15 176.0000000 169.73527 3.56% 11.7 1s Cutting planes: Gomory: 16 Cover: 2 Implied bound: 12 Clique: 2 MIR: 30 Zero half: 107 Explored 790 nodes (9612 simplex iterations) in 1.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.760000000000e+02, best bound 1.760000000000e+02, gap 0.0%