Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:09:41 2012 Optimize a model with 359 rows, 237 columns and 1132 nonzeros Presolve time: 0.00s Presolved: 359 rows, 237 columns, 1132 nonzeros Variable types: 0 continuous, 237 integer (237 binary) Found heuristic solution: objective 78.0000000 Root relaxation: objective 0.000000e+00, 100 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 58 78.00000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s H 0 0 71.0000000 0.00000 100% - 0s 0 0 0.73214 0 60 71.00000 0.73214 99.0% - 0s 0 0 0.96429 0 60 71.00000 0.96429 98.6% - 0s 0 0 0.98214 0 60 71.00000 0.98214 98.6% - 0s 0 0 0.98214 0 60 71.00000 0.98214 98.6% - 0s 0 0 0.98214 0 60 71.00000 0.98214 98.6% - 0s 0 0 0.98214 0 60 71.00000 0.98214 98.6% - 0s H 0 0 64.0000000 0.98214 98.5% - 0s 0 2 0.98214 0 60 64.00000 0.98214 98.5% - 0s * 48 48 27 62.0000000 4.83333 92.2% 25.1 0s * 95 85 26 59.0000000 4.94953 91.6% 24.2 0s * 138 104 25 55.0000000 8.28782 84.9% 25.0 0s * 204 161 25 54.0000000 8.32143 84.6% 26.1 0s * 207 154 23 53.0000000 8.32143 84.3% 25.8 0s * 430 298 26 52.0000000 13.50446 74.0% 24.1 0s * 560 368 19 51.0000000 14.96429 70.7% 24.4 0s * 598 381 21 50.0000000 15.91295 68.2% 24.1 0s H 841 465 47.0000000 17.85714 62.0% 25.1 1s * 1652 437 28 45.0000000 22.15714 50.8% 25.4 1s 4615 732 34.66489 18 106 45.00000 29.60000 34.2% 24.5 5s 10333 677 cutoff 21 45.00000 35.02632 22.2% 23.0 10s Cutting planes: Gomory: 1 Zero half: 4 Explored 13600 nodes (304756 simplex iterations) in 12.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.500000000000e+01, best bound 4.500000000000e+01, gap 0.0%