Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:09:54 2012 Optimize a model with 345 rows, 230 columns and 1090 nonzeros Presolve time: 0.00s Presolved: 345 rows, 230 columns, 1090 nonzeros Variable types: 0 continuous, 230 integer (230 binary) Found heuristic solution: objective 79.0000000 Root relaxation: objective 0.000000e+00, 91 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 79.00000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s 0 0 0.90385 0 60 66.00000 0.90385 98.6% - 0s 0 0 0.92012 0 64 66.00000 0.92012 98.6% - 0s 0 0 0.94231 0 60 66.00000 0.94231 98.6% - 0s 0 0 0.94231 0 60 66.00000 0.94231 98.6% - 0s 0 0 0.94231 0 60 66.00000 0.94231 98.6% - 0s H 0 0 58.0000000 0.94231 98.4% - 0s 0 2 0.94231 0 60 58.00000 0.94231 98.4% - 0s * 75 64 18 55.0000000 4.98341 90.9% 24.6 0s * 108 80 21 49.0000000 8.16484 83.3% 23.7 0s * 401 243 18 48.0000000 15.33333 68.1% 23.8 0s * 405 237 17 47.0000000 15.33333 67.4% 23.6 0s * 671 330 32 46.0000000 18.26667 60.3% 23.3 0s * 796 348 28 44.0000000 18.26667 58.5% 23.7 0s * 935 321 27 43.0000000 18.26667 57.5% 23.4 1s * 1062 285 26 42.0000000 18.33333 56.3% 23.2 1s Cutting planes: Gomory: 1 Zero half: 4 Explored 5088 nodes (105975 simplex iterations) in 4.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.200000000000e+01, best bound 4.200000000000e+01, gap 0.0%