Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:59:24 2012 Optimize a model with 409 rows, 288 columns and 1308 nonzeros Presolve time: 0.00s Presolved: 409 rows, 288 columns, 1308 nonzeros Variable types: 0 continuous, 288 integer (288 binary) Found heuristic solution: objective 82.0000000 Root relaxation: objective 0.000000e+00, 111 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 81 82.00000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s 0 0 0.48148 0 82 66.00000 0.48148 99.3% - 0s H 0 0 65.0000000 0.48148 99.3% - 0s 0 0 1.00000 0 83 65.00000 1.00000 98.5% - 0s H 0 0 64.0000000 1.00000 98.4% - 0s 0 0 1.07085 0 84 64.00000 1.07085 98.3% - 0s 0 0 1.11896 0 88 64.00000 1.11896 98.3% - 0s 0 0 1.13151 0 88 64.00000 1.13151 98.2% - 0s H 0 0 61.0000000 1.13151 98.1% - 0s 0 2 1.13192 0 88 61.00000 1.13192 98.1% - 0s * 46 45 29 55.0000000 1.17942 97.9% 33.6 0s H 88 79 54.0000000 1.41193 97.4% 33.5 0s H 88 77 52.0000000 1.41193 97.3% 33.5 0s * 93 80 27 49.0000000 1.41193 97.1% 32.5 0s * 135 105 23 46.0000000 2.00000 95.7% 32.4 0s * 462 372 24 45.0000000 5.34177 88.1% 31.5 0s * 1946 553 31 44.0000000 23.16667 47.3% 27.2 2s 4529 995 43.00000 26 134 44.00000 28.00000 36.4% 24.7 5s 10379 1320 39.42623 25 133 44.00000 33.11364 24.7% 23.0 10s 17344 861 41.27419 26 137 44.00000 36.56522 16.9% 22.3 15s Explored 20703 nodes (450989 simplex iterations) in 17.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%