Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:16:36 2012 Optimize a model with 317 rows, 217 columns and 1007 nonzeros Presolve time: 0.00s Presolved: 317 rows, 217 columns, 1007 nonzeros Variable types: 0 continuous, 217 integer (217 binary) Found heuristic solution: objective 70.0000000 Root relaxation: objective 0.000000e+00, 107 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 59 70.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s 0 0 0.61441 0 60 66.00000 0.61441 99.1% - 0s 0 0 1.09468 0 62 66.00000 1.09468 98.3% - 0s H 0 0 61.0000000 1.09468 98.2% - 0s 0 0 1.11631 0 62 61.00000 1.11631 98.2% - 0s H 0 0 60.0000000 1.11631 98.1% - 0s H 0 0 59.0000000 1.11631 98.1% - 0s 0 0 1.13442 0 62 59.00000 1.13442 98.1% - 0s H 0 0 55.0000000 1.13442 97.9% - 0s 0 0 1.16686 0 69 55.00000 1.16686 97.9% - 0s 0 0 1.16745 0 63 55.00000 1.16745 97.9% - 0s 0 0 1.17088 0 69 55.00000 1.17088 97.9% - 0s 0 0 1.17088 0 67 55.00000 1.17088 97.9% - 0s H 0 0 52.0000000 1.17088 97.7% - 0s H 0 0 50.0000000 1.17088 97.7% - 0s 0 2 1.17688 0 67 50.00000 1.17688 97.6% - 0s * 29 29 17 43.0000000 3.90060 90.9% 30.9 0s * 124 92 17 39.0000000 6.90666 82.3% 27.7 0s * 126 81 15 37.0000000 6.90666 81.3% 27.4 0s * 154 105 17 36.0000000 10.32114 71.3% 28.3 0s * 1467 251 31 35.0000000 21.00000 40.0% 23.3 1s * 2321 285 24 34.0000000 24.20000 28.8% 21.7 1s Explored 4077 nodes (83071 simplex iterations) in 3.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%