Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:37:36 2012 Optimize a model with 363 rows, 242 columns and 1147 nonzeros Presolve time: 0.00s Presolved: 363 rows, 242 columns, 1147 nonzeros Variable types: 0 continuous, 242 integer (242 binary) Found heuristic solution: objective 81.0000000 Found heuristic solution: objective 78.0000000 Root relaxation: objective 0.000000e+00, 93 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 61 78.00000 0.00000 100% - 0s H 0 0 77.0000000 0.00000 100% - 0s H 0 0 71.0000000 0.00000 100% - 0s 0 0 0.58638 0 62 71.00000 0.58638 99.2% - 0s 0 0 1.00000 0 63 71.00000 1.00000 98.6% - 0s 0 0 1.44595 0 64 71.00000 1.44595 98.0% - 0s 0 0 1.54570 0 65 71.00000 1.54570 97.8% - 0s H 0 0 70.0000000 1.54570 97.8% - 0s 0 2 1.54988 0 65 70.00000 1.54988 97.8% - 0s * 26 24 15 43.0000000 4.45143 89.6% 41.5 0s * 36 22 19 42.0000000 4.45143 89.4% 32.4 0s 5421 522 36.79167 23 112 42.00000 30.10638 28.3% 24.8 5s * 9008 178 28 41.0000000 35.76190 12.8% 23.0 7s Explored 9370 nodes (212644 simplex iterations) in 7.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.100000000000e+01, best bound 4.100000000000e+01, gap 0.0%