Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:39:48 2012 Optimize a model with 143 rows, 109 columns and 464 nonzeros Presolve time: 0.00s Presolved: 143 rows, 109 columns, 464 nonzeros Variable types: 0 continuous, 109 integer (109 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 0.000000e+00, 61 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 38 32.00000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.55882 0 39 26.00000 0.55882 97.9% - 0s H 0 0 24.0000000 0.55882 97.7% - 0s 0 0 1.00000 0 41 24.00000 1.00000 95.8% - 0s H 0 0 23.0000000 1.00000 95.7% - 0s 0 0 1.02778 0 40 23.00000 1.02778 95.5% - 0s 0 0 1.04724 0 42 23.00000 1.04724 95.4% - 0s H 0 0 21.0000000 1.04724 95.0% - 0s 0 0 1.07851 0 43 21.00000 1.07851 94.9% - 0s 0 0 1.11049 0 44 21.00000 1.11049 94.7% - 0s 0 0 1.13925 0 45 21.00000 1.13925 94.6% - 0s H 0 0 17.0000000 1.13925 93.3% - 0s 0 0 1.22786 0 47 17.00000 1.22786 92.8% - 0s 0 0 1.23978 0 49 17.00000 1.23978 92.7% - 0s 0 0 1.23978 0 49 17.00000 1.23978 92.7% - 0s 0 2 1.26113 0 49 17.00000 1.26113 92.6% - 0s * 20 19 13 15.0000000 3.34695 77.7% 24.0 0s * 50 23 15 14.0000000 6.55618 53.2% 21.2 0s H 109 0 13.0000000 12.23077 5.92% 17.2 0s Cutting planes: Gomory: 3 Zero half: 8 Explored 109 nodes (2233 simplex iterations) in 0.11 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%