Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:05:31 2012 Optimize a model with 577 rows, 514 columns and 1954 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 577 rows, 494 columns, 1934 nonzeros Variable types: 0 continuous, 494 integer (493 binary) Found heuristic solution: objective 107.0000000 Root relaxation: objective 0.000000e+00, 254 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 0 201 107.00000 0.00000 100% - 0s H 0 0 89.0000000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s H 0 0 81.0000000 0.00000 100% - 0s 0 0 0.40081 0 204 81.00000 0.40081 100% - 0s H 0 0 56.0000000 0.40081 99.3% - 0s 0 0 1.01128 0 205 56.00000 1.01128 98.2% - 0s H 0 0 44.0000000 1.01128 97.7% - 0s 0 0 1.01129 0 205 44.00000 1.01129 97.7% - 0s 0 0 1.01129 0 205 44.00000 1.01129 97.7% - 0s 0 2 1.01269 0 205 44.00000 1.01269 97.7% - 0s H 32 32 42.0000000 1.19916 97.1% 46.4 0s H 54 54 35.0000000 1.19916 96.6% 35.2 0s H 81 79 32.0000000 1.19916 96.3% 26.9 0s * 86 68 50 31.0000000 1.19916 96.1% 27.1 0s H 182 101 27.0000000 1.94697 92.8% 29.7 0s H 189 87 26.0000000 1.95964 92.5% 30.3 0s H 270 155 25.0000000 3.43367 86.3% 35.4 0s 2688 1012 20.66667 24 197 25.00000 12.14563 51.4% 27.7 5s 5747 2008 22.63128 22 215 25.00000 14.82114 40.7% 25.4 10s 8684 2703 20.36464 21 215 25.00000 15.95181 36.2% 25.3 15s 11891 3265 23.42177 28 186 25.00000 16.73984 33.0% 25.1 20s 15053 3666 22.51807 23 204 25.00000 17.37037 30.5% 24.7 25s 18647 3936 23.54545 27 193 25.00000 18.00000 28.0% 24.4 30s 22204 4036 23.54967 26 192 25.00000 18.42754 26.3% 24.3 35s 25907 3990 21.52439 23 200 25.00000 18.86667 24.5% 24.1 40s 29474 3888 cutoff 25 25.00000 19.23438 23.1% 24.1 45s 32886 3585 23.00000 26 188 25.00000 19.65217 21.4% 24.1 50s 36092 3238 cutoff 25 25.00000 20.00000 20.0% 24.3 55s 39807 2738 cutoff 24 25.00000 20.51648 17.9% 24.2 60s 43715 2073 23.53293 23 205 25.00000 21.25806 15.0% 24.0 65s 47627 774 23.61628 25 214 25.00000 22.66667 9.33% 23.6 70s Explored 48694 nodes (1144817 simplex iterations) in 71.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.500000000000e+01, best bound 2.500000000000e+01, gap 0.0%