Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:07:43 2012 Optimize a model with 349 rows, 201 columns and 1071 nonzeros Presolve time: 0.00s Presolved: 349 rows, 201 columns, 1071 nonzeros Variable types: 0 continuous, 201 integer (201 binary) Found heuristic solution: objective 92.0000000 Root relaxation: objective 0.000000e+00, 52 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 27 92.00000 0.00000 100% - 0s H 0 0 91.0000000 0.00000 100% - 0s H 0 0 85.0000000 0.00000 100% - 0s 0 0 0.92181 0 29 85.00000 0.92181 98.9% - 0s H 0 0 83.0000000 0.92181 98.9% - 0s 0 0 0.94664 0 46 83.00000 0.94664 98.9% - 0s 0 0 1.00823 0 29 83.00000 1.00823 98.8% - 0s 0 0 1.00823 0 29 83.00000 1.00823 98.8% - 0s 0 0 1.00823 0 29 83.00000 1.00823 98.8% - 0s 0 0 1.00823 0 29 83.00000 1.00823 98.8% - 0s H 0 0 82.0000000 1.00823 98.8% - 0s H 0 0 80.0000000 1.00823 98.7% - 0s 0 2 1.13675 0 29 80.00000 1.13675 98.6% - 0s * 63 53 22 78.0000000 10.37037 86.7% 33.5 0s * 232 171 20 77.0000000 22.66667 70.6% 34.5 0s * 290 190 16 76.0000000 23.07246 69.6% 32.7 0s * 384 231 16 72.0000000 28.63399 60.2% 32.0 0s * 1093 333 30 71.0000000 36.07143 49.2% 29.0 1s * 1218 324 33 70.0000000 37.08642 47.0% 28.1 1s H 1600 336 68.0000000 41.45000 39.0% 27.1 1s 7213 252 66.81250 25 115 68.00000 58.23077 14.4% 20.7 5s Cutting planes: Gomory: 1 Zero half: 3 Explored 8201 nodes (163725 simplex iterations) in 5.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.800000000000e+01, best bound 6.800000000000e+01, gap 0.0%