Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:41:43 2012 Optimize a model with 307 rows, 233 columns and 998 nonzeros Presolve time: 0.00s Presolved: 307 rows, 233 columns, 998 nonzeros Variable types: 0 continuous, 233 integer (233 binary) Found heuristic solution: objective 58.0000000 Root relaxation: objective 0.000000e+00, 127 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 79 58.00000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s 0 0 0.62107 0 80 50.00000 0.62107 98.8% - 0s H 0 0 44.0000000 0.62107 98.6% - 0s 0 0 1.19516 0 82 44.00000 1.19516 97.3% - 0s 0 0 1.19516 0 82 44.00000 1.19516 97.3% - 0s H 0 0 39.0000000 1.19516 96.9% - 0s H 0 0 37.0000000 1.19516 96.8% - 0s 0 2 1.19694 0 82 37.00000 1.19694 96.8% - 0s * 46 46 29 34.0000000 3.39062 90.0% 25.0 0s * 80 60 18 32.0000000 4.53223 85.8% 31.0 0s * 86 50 19 29.0000000 4.53223 84.4% 29.4 0s * 634 279 27 28.0000000 12.01420 57.1% 26.6 0s * 707 284 23 27.0000000 12.01420 55.5% 26.7 0s * 1213 193 27 26.0000000 15.53333 40.3% 24.9 1s Explored 2927 nodes (62634 simplex iterations) in 2.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%