Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:25 2012 Optimize a model with 357 rows, 365 columns and 1255 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 357 rows, 345 columns, 1235 nonzeros Variable types: 0 continuous, 345 integer (344 binary) Found heuristic solution: objective 61.0000000 Root relaxation: objective 0.000000e+00, 209 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 150 61.00000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s 0 0 0.28855 0 153 40.00000 0.28855 99.3% - 0s H 0 0 26.0000000 0.28855 98.9% - 0s 0 0 0.66165 0 155 26.00000 0.66165 97.5% - 0s H 0 0 13.0000000 0.66165 94.9% - 0s 0 0 0.66165 0 155 13.00000 0.66165 94.9% - 0s 0 2 0.66190 0 155 13.00000 0.66190 94.9% - 0s H 27 19 6.0000000 1.00000 83.3% 30.3 0s Cutting planes: Gomory: 3 Explored 93 nodes (3471 simplex iterations) in 0.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%