Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:20:29 2012 Optimize a model with 197 rows, 163 columns and 653 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 197 rows, 161 columns, 651 nonzeros Variable types: 0 continuous, 161 integer (160 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 0.000000e+00, 106 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 62 42.00000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.48387 0 63 34.00000 0.48387 98.6% - 0s H 0 0 31.0000000 0.48387 98.4% - 0s 0 0 1.00000 0 64 31.00000 1.00000 96.8% - 0s H 0 0 30.0000000 1.00000 96.7% - 0s 0 0 1.19018 0 66 30.00000 1.19018 96.0% - 0s H 0 0 28.0000000 1.19018 95.7% - 0s H 0 0 27.0000000 1.19018 95.6% - 0s 0 0 1.25382 0 67 27.00000 1.25382 95.4% - 0s H 0 0 25.0000000 1.25382 95.0% - 0s 0 0 1.25382 0 67 25.00000 1.25382 95.0% - 0s H 0 0 24.0000000 1.25382 94.8% - 0s H 0 0 20.0000000 1.25382 93.7% - 0s 0 2 1.25672 0 67 20.00000 1.25672 93.7% - 0s * 22 22 15 17.0000000 3.38129 80.1% 24.6 0s * 26 14 16 16.0000000 3.38129 78.9% 22.7 0s * 48 23 13 14.0000000 3.42749 75.5% 20.4 0s * 80 29 11 13.0000000 5.63363 56.7% 22.1 0s Cutting planes: Gomory: 5 Zero half: 1 Explored 213 nodes (4909 simplex iterations) in 0.21 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%