Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:55:20 2012 Optimize a model with 385 rows, 381 columns and 1341 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 385 rows, 355 columns, 1315 nonzeros Variable types: 0 continuous, 355 integer (354 binary) Found heuristic solution: objective 75.0000000 Root relaxation: objective 0.000000e+00, 220 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 0 160 75.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s 0 0 0.37137 0 162 51.00000 0.37137 99.3% - 0s H 0 0 48.0000000 0.37137 99.2% - 0s 0 0 0.90826 0 167 48.00000 0.90826 98.1% - 0s H 0 0 46.0000000 0.90826 98.0% - 0s 0 0 0.90868 0 167 46.00000 0.90868 98.0% - 0s 0 0 0.90868 0 167 46.00000 0.90868 98.0% - 0s H 0 0 37.0000000 0.90868 97.5% - 0s 0 2 0.91330 0 167 37.00000 0.91330 97.5% - 0s H 27 27 36.0000000 1.86833 94.8% 32.4 0s * 29 14 17 9.0000000 1.86833 79.2% 30.4 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 142 nodes (5085 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%