Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:39 2012 Optimize a model with 151 rows, 131 columns and 506 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 151 rows, 127 columns, 502 nonzeros Variable types: 0 continuous, 127 integer (126 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 69 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 51 32.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s 0 0 0.45098 0 52 27.00000 0.45098 98.3% - 0s H 0 0 22.0000000 0.45098 98.0% - 0s 0 0 1.01061 0 56 22.00000 1.01061 95.4% - 0s H 0 0 18.0000000 1.01061 94.4% - 0s 0 0 1.01355 0 57 18.00000 1.01355 94.4% - 0s 0 0 1.01355 0 57 18.00000 1.01355 94.4% - 0s H 0 0 15.0000000 1.01355 93.2% - 0s 0 2 1.03049 0 57 15.00000 1.03049 93.1% - 0s * 16 16 10 10.0000000 2.43324 75.7% 23.2 0s * 108 35 11 9.0000000 5.15451 42.7% 15.7 0s Cutting planes: Gomory: 3 Zero half: 3 Explored 193 nodes (3255 simplex iterations) in 0.13 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%