Gurobi 5.0.1 (linux64) logging started Sat Dec 8 10:26:29 2012 Optimize a model with 1095 rows, 1080 columns and 3560 nonzeros Presolve removed 92 rows and 56 columns Presolve time: 0.01s Presolved: 1003 rows, 1024 columns, 3336 nonzeros Variable types: 684 continuous, 340 integer (340 binary) Root relaxation: objective 1.010445e+05, 497 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 101044.507 0 165 - 101044.507 - - 0s H 0 0 176277.00000 101044.507 42.7% - 0s 0 0 120940.017 0 40 176277.000 120940.017 31.4% - 0s 0 0 121680.490 0 21 176277.000 121680.490 31.0% - 0s 0 0 121728.349 0 18 176277.000 121728.349 30.9% - 0s 0 0 121748.780 0 18 176277.000 121748.780 30.9% - 0s 0 2 121756.680 0 18 176277.000 121756.680 30.9% - 0s H 27 27 122996.00000 121796.852 0.97% 6.6 0s * 81 73 71 122809.00000 121796.852 0.82% 5.5 1s H 135 107 122626.00000 121798.416 0.67% 6.1 2s H 209 137 122576.00000 121817.598 0.62% 6.2 4s H 225 78 122209.00000 121817.598 0.32% 6.1 4s H 226 74 122205.00000 121817.598 0.32% 6.1 4s 246 90 cutoff 18 122205.000 121821.528 0.31% 6.4 5s H 273 91 122168.00000 121821.528 0.28% 6.2 5s * 275 88 46 122164.00000 121821.528 0.28% 6.2 5s H 477 134 122098.00000 121861.428 0.19% 7.1 9s 504 144 121945.428 10 12 122098.000 121867.791 0.19% 7.2 10s H 600 115 122034.00000 121883.567 0.12% 7.3 12s 674 120 122001.654 20 11 122034.000 121983.911 0.04% 8.8 15s Cutting planes: Gomory: 14 Flow cover: 35 Flow path: 15 GUB cover: 1 Explored 817 nodes (7380 simplex iterations) in 17.93 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.220339999997e+05, best bound 1.220219928038e+05, gap 0.0098%