Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:30:09 2012 Optimize a model with 245 rows, 198 columns and 808 nonzeros Presolve time: 0.00s Presolved: 245 rows, 198 columns, 808 nonzeros Variable types: 0 continuous, 198 integer (198 binary) Found heuristic solution: objective 50.0000000 Root relaxation: objective 0.000000e+00, 120 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 71 50.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 0.47931 0 72 43.00000 0.47931 98.9% - 0s H 0 0 42.0000000 0.47931 98.9% - 0s 0 0 1.05880 0 74 42.00000 1.05880 97.5% - 0s H 0 0 39.0000000 1.05880 97.3% - 0s H 0 0 38.0000000 1.05880 97.2% - 0s 0 0 1.29596 0 75 38.00000 1.29596 96.6% - 0s H 0 0 37.0000000 1.29596 96.5% - 0s 0 0 1.29997 0 77 37.00000 1.29997 96.5% - 0s 0 0 1.29997 0 77 37.00000 1.29997 96.5% - 0s H 0 0 35.0000000 1.29997 96.3% - 0s 0 2 1.31843 0 77 35.00000 1.31843 96.2% - 0s H 16 16 30.0000000 2.93231 90.2% 39.5 0s * 22 20 13 20.0000000 2.93231 85.3% 32.2 0s * 41 22 12 14.0000000 2.93581 79.0% 28.8 0s * 67 22 15 13.0000000 4.95133 61.9% 24.6 0s Cutting planes: Gomory: 4 Zero half: 4 Explored 168 nodes (4434 simplex iterations) in 0.27 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%