Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:26:39 2012 Optimize a model with 393 rows, 225 columns and 1205 nonzeros Presolve time: 0.00s Presolved: 393 rows, 225 columns, 1205 nonzeros Variable types: 0 continuous, 225 integer (225 binary) Found heuristic solution: objective 99.0000000 Root relaxation: objective 0.000000e+00, 53 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 29 99.00000 0.00000 100% - 0s H 0 0 97.0000000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s 0 0 0.79576 0 31 82.00000 0.79576 99.0% - 0s 0 0 0.82542 0 41 82.00000 0.82542 99.0% - 0s 0 0 0.84881 0 31 82.00000 0.84881 99.0% - 0s 0 0 0.84881 0 31 82.00000 0.84881 99.0% - 0s 0 0 0.87533 0 31 82.00000 0.87533 98.9% - 0s 0 0 0.87533 0 31 82.00000 0.87533 98.9% - 0s 0 0 0.90186 0 31 82.00000 0.90186 98.9% - 0s 0 0 0.90186 0 31 82.00000 0.90186 98.9% - 0s 0 0 0.90186 0 31 82.00000 0.90186 98.9% - 0s 0 0 0.90186 0 31 82.00000 0.90186 98.9% - 0s 0 2 0.98530 0 31 82.00000 0.98530 98.8% - 0s * 426 246 20 81.0000000 28.52308 64.8% 32.6 0s * 428 243 19 80.0000000 28.52308 64.3% 32.5 0s H 635 309 79.0000000 34.50000 56.3% 31.7 0s * 1249 357 30 78.0000000 35.60000 54.4% 31.5 1s H 2768 634 77.0000000 46.00000 40.3% 27.7 2s H 2933 660 76.0000000 46.90909 38.3% 27.5 2s 5896 1023 66.50000 22 127 76.00000 53.33333 29.8% 25.0 5s *13084 962 26 75.0000000 62.00000 17.3% 22.3 9s 14509 773 68.55556 22 132 75.00000 63.66667 15.1% 22.0 10s Explored 17412 nodes (365300 simplex iterations) in 11.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.500000000000e+01, best bound 7.500000000000e+01, gap 0.0%