Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:38 2012 Optimize a model with 193 rows, 116 columns and 596 nonzeros Presolve time: 0.00s Presolved: 193 rows, 116 columns, 596 nonzeros Variable types: 0 continuous, 116 integer (116 binary) Found heuristic solution: objective 51.0000000 Root relaxation: objective 0.000000e+00, 43 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 20 51.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s 0 0 0.81781 0 29 42.00000 0.81781 98.1% - 0s 0 0 0.85000 0 22 42.00000 0.85000 98.0% - 0s 0 0 0.95000 0 22 42.00000 0.95000 97.7% - 0s 0 0 0.95000 0 22 42.00000 0.95000 97.7% - 0s 0 0 1.00000 0 22 42.00000 1.00000 97.6% - 0s 0 0 1.00000 0 22 42.00000 1.00000 97.6% - 0s 0 0 1.00000 0 22 42.00000 1.00000 97.6% - 0s 0 0 1.00000 0 22 42.00000 1.00000 97.6% - 0s 0 2 1.00698 0 22 42.00000 1.00698 97.6% - 0s * 214 76 13 41.0000000 15.57143 62.0% 16.3 0s * 244 78 12 40.0000000 15.57143 61.1% 15.4 0s * 268 79 12 38.0000000 15.81818 58.4% 15.6 0s * 769 118 26 37.0000000 25.33333 31.5% 16.1 0s Explored 1360 nodes (20614 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%