Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:44:52 2012 Optimize a model with 295 rows, 228 columns and 963 nonzeros Presolve time: 0.00s Presolved: 295 rows, 228 columns, 963 nonzeros Variable types: 0 continuous, 228 integer (228 binary) Found heuristic solution: objective 62.0000000 Root relaxation: objective 0.000000e+00, 123 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 80 62.00000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s 0 0 0.40015 0 82 49.00000 0.40015 99.2% - 0s H 0 0 48.0000000 0.40015 99.2% - 0s 0 0 1.09535 0 84 48.00000 1.09535 97.7% - 0s H 0 0 45.0000000 1.09535 97.6% - 0s 0 0 1.11512 0 85 45.00000 1.11512 97.5% - 0s 0 0 1.11512 0 85 45.00000 1.11512 97.5% - 0s H 0 0 43.0000000 1.11512 97.4% - 0s H 0 0 39.0000000 1.11512 97.1% - 0s H 0 0 35.0000000 1.11512 96.8% - 0s 0 2 1.12101 0 85 35.00000 1.12101 96.8% - 0s * 26 22 17 24.0000000 3.81167 84.1% 30.0 0s * 215 72 16 23.0000000 8.43266 63.3% 26.6 0s * 298 93 13 22.0000000 10.84567 50.7% 25.1 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 802 nodes (17862 simplex iterations) in 0.61 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%