Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:29:18 2012 Optimize a model with 235 rows, 169 columns and 754 nonzeros Presolve time: 0.00s Presolved: 235 rows, 169 columns, 754 nonzeros Variable types: 0 continuous, 169 integer (169 binary) Found heuristic solution: objective 55.0000000 Root relaxation: objective 0.000000e+00, 70 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 55.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 0.49020 0 52 44.00000 0.49020 98.9% - 0s H 0 0 41.0000000 0.49020 98.8% - 0s 0 0 1.09337 0 53 41.00000 1.09337 97.3% - 0s H 0 0 38.0000000 1.09337 97.1% - 0s 0 0 1.31567 0 56 38.00000 1.31567 96.5% - 0s H 0 0 33.0000000 1.31567 96.0% - 0s H 0 0 32.0000000 1.31567 95.9% - 0s 0 0 1.32870 0 57 32.00000 1.32870 95.8% - 0s 0 0 1.32870 0 57 32.00000 1.32870 95.8% - 0s 0 2 1.34111 0 57 32.00000 1.34111 95.8% - 0s * 23 23 14 29.0000000 3.62515 87.5% 30.7 0s * 27 20 17 28.0000000 3.62515 87.1% 26.8 0s * 70 42 14 26.0000000 6.34237 75.6% 26.7 0s * 101 54 13 24.0000000 6.38095 73.4% 26.3 0s Cutting planes: Gomory: 5 Zero half: 2 Explored 657 nodes (15018 simplex iterations) in 0.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%