Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:21:18 2012 Optimize a model with 379 rows, 279 columns and 1224 nonzeros Presolve time: 0.00s Presolved: 379 rows, 279 columns, 1224 nonzeros Variable types: 0 continuous, 279 integer (279 binary) Found heuristic solution: objective 84.0000000 Root relaxation: objective 0.000000e+00, 114 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 89 84.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s 0 0 0.50588 0 90 67.00000 0.50588 99.2% - 0s H 0 0 65.0000000 0.50588 99.2% - 0s 0 0 1.00000 0 90 65.00000 1.00000 98.5% - 0s H 0 0 62.0000000 1.00000 98.4% - 0s 0 0 1.00000 0 89 62.00000 1.00000 98.4% - 0s H 0 0 58.0000000 1.00000 98.3% - 0s 0 2 1.00000 0 89 58.00000 1.00000 98.3% - 0s H 44 44 44.0000000 5.50000 87.5% 29.4 0s H 44 43 43.0000000 5.50000 87.2% 29.4 0s * 46 37 26 42.0000000 5.50000 86.9% 29.2 0s H 81 63 39.0000000 6.51852 83.3% 30.4 0s * 83 59 22 38.0000000 6.51852 82.8% 30.5 0s * 242 165 22 34.0000000 10.43750 69.3% 29.4 0s * 882 351 26 32.0000000 14.30769 55.3% 28.5 1s H 940 331 31.0000000 14.30769 53.8% 28.5 1s Cutting planes: Gomory: 1 Explored 3229 nodes (86034 simplex iterations) in 3.63 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.100000000000e+01, best bound 3.100000000000e+01, gap 0.0%