Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:39:02 2012 Optimize a model with 347 rows, 234 columns and 1099 nonzeros Presolve time: 0.00s Presolved: 347 rows, 234 columns, 1099 nonzeros Variable types: 0 continuous, 234 integer (234 binary) Found heuristic solution: objective 80.0000000 Root relaxation: objective 0.000000e+00, 90 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 61 80.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s 0 0 0.52572 0 62 61.00000 0.52572 99.1% - 0s 0 0 1.19574 0 64 61.00000 1.19574 98.0% - 0s 0 0 1.33872 0 65 61.00000 1.33872 97.8% - 0s 0 0 1.33872 0 65 61.00000 1.33872 97.8% - 0s 0 2 1.34841 0 65 61.00000 1.34841 97.8% - 0s H 32 32 57.0000000 4.09975 92.8% 34.6 0s * 40 39 23 51.0000000 4.09975 92.0% 32.0 0s * 87 73 30 50.0000000 4.14713 91.7% 27.6 0s H 108 81 49.0000000 9.49153 80.6% 30.0 0s * 128 94 25 47.0000000 9.49153 79.8% 28.5 0s H 208 145 44.0000000 11.22222 74.5% 29.1 0s * 275 181 20 41.0000000 12.64000 69.2% 29.4 0s H 824 376 40.0000000 17.06667 57.3% 29.7 1s * 867 351 23 39.0000000 17.06667 56.2% 29.7 1s * 4005 164 22 38.0000000 30.80000 18.9% 25.4 4s Cutting planes: Gomory: 4 Explored 4419 nodes (110739 simplex iterations) in 4.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%