Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:29:16 2012 Optimize a model with 285 rows, 194 columns and 904 nonzeros Presolve time: 0.00s Presolved: 285 rows, 194 columns, 904 nonzeros Variable types: 0 continuous, 194 integer (194 binary) Found heuristic solution: objective 67.0000000 Root relaxation: objective 0.000000e+00, 84 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 52 67.00000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s 0 0 0.65385 0 54 61.00000 0.65385 98.9% - 0s 0 0 0.86455 0 58 61.00000 0.86455 98.6% - 0s 0 0 0.90385 0 54 61.00000 0.90385 98.5% - 0s 0 0 0.94231 0 54 61.00000 0.94231 98.5% - 0s 0 0 0.94498 0 64 61.00000 0.94498 98.5% - 0s H 0 0 59.0000000 0.94498 98.4% - 0s H 0 0 54.0000000 0.94498 98.3% - 0s H 0 0 53.0000000 0.94498 98.2% - 0s H 0 0 39.0000000 0.94498 97.6% - 0s 0 2 0.98504 0 64 39.00000 0.98504 97.5% - 0s * 67 50 21 38.0000000 4.42377 88.4% 22.3 0s H 162 100 37.0000000 11.26442 69.6% 21.4 0s * 475 215 18 35.0000000 15.20392 56.6% 18.7 0s * 725 284 25 34.0000000 18.12500 46.7% 20.7 0s H 2068 184 33.0000000 24.09524 27.0% 20.9 1s Explored 3027 nodes (61670 simplex iterations) in 2.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%