Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:09:18 2012 Optimize a model with 423 rows, 417 columns and 1472 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 423 rows, 392 columns, 1447 nonzeros Variable types: 0 continuous, 392 integer (391 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 270 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 0 170 86.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.34722 0 171 32.00000 0.34722 98.9% - 0s H 0 0 19.0000000 0.34722 98.2% - 0s 0 0 1.00000 0 174 19.00000 1.00000 94.7% - 0s H 0 0 14.0000000 1.00000 92.9% - 0s 0 0 1.00000 0 172 14.00000 1.00000 92.9% - 0s 0 0 1.00000 0 170 14.00000 1.00000 92.9% - 0s 0 2 1.00000 0 170 14.00000 1.00000 92.9% - 0s * 36 18 23 9.0000000 2.38239 73.5% 34.7 0s Cutting planes: Gomory: 3 Zero half: 2 Explored 147 nodes (5159 simplex iterations) in 0.26 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%