Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:57:27 2012 Optimize a model with 425 rows, 404 columns and 1464 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 425 rows, 384 columns, 1444 nonzeros Variable types: 0 continuous, 384 integer (383 binary) Found heuristic solution: objective 77.0000000 Root relaxation: objective 0.000000e+00, 260 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 0 160 77.00000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s H 0 0 55.0000000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s 0 0 0.36504 0 162 51.00000 0.36504 99.3% - 0s H 0 0 50.0000000 0.36504 99.3% - 0s 0 0 0.76596 0 164 50.00000 0.76596 98.5% - 0s H 0 0 46.0000000 0.76596 98.3% - 0s 0 0 0.76596 0 164 46.00000 0.76596 98.3% - 0s H 0 0 39.0000000 0.76596 98.0% - 0s H 0 0 30.0000000 0.76596 97.4% - 0s H 0 0 29.0000000 0.76596 97.4% - 0s 0 2 0.76715 0 164 29.00000 0.76715 97.4% - 0s H 27 27 26.0000000 1.00000 96.2% 54.9 0s * 69 37 50 17.0000000 1.00000 94.1% 31.3 0s H 198 94 16.0000000 1.00000 93.8% 26.8 0s * 376 136 17 15.0000000 1.41294 90.6% 29.4 0s * 410 121 14 14.0000000 2.30631 83.5% 29.8 0s * 530 116 12 13.0000000 5.18750 60.1% 28.7 0s Cutting planes: Gomory: 4 Mod-K: 2 Explored 1029 nodes (29937 simplex iterations) in 1.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%