Gurobi 5.0.1 (linux64) logging started Sun Nov 18 09:13:28 2012 Optimize a model with 583 rows, 532 columns and 1987 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 583 rows, 514 columns, 1969 nonzeros Variable types: 0 continuous, 514 integer (513 binary) Found heuristic solution: objective 112.0000000 Root relaxation: objective 0.000000e+00, 310 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 0 208 112.00000 0.00000 100% - 0s H 0 0 101.0000000 0.00000 100% - 0s H 0 0 84.0000000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s 0 0 0.39740 0 210 80.00000 0.39740 100% - 0s H 0 0 77.0000000 0.39740 99.5% - 0s 0 0 0.39911 0 211 77.00000 0.39911 99.5% - 0s H 0 0 73.0000000 0.39911 99.5% - 0s 0 0 0.39938 0 215 73.00000 0.39938 99.5% - 0s 0 0 0.39938 0 212 73.00000 0.39938 99.5% - 0s H 0 0 72.0000000 0.39938 99.4% - 0s H 0 0 64.0000000 0.39938 99.4% - 0s H 0 0 61.0000000 0.39938 99.3% - 0s H 0 0 58.0000000 0.39938 99.3% - 0s H 0 0 54.0000000 0.39938 99.3% - 0s 0 2 0.40580 0 212 54.00000 0.40580 99.2% - 0s H 27 27 52.0000000 2.12825 95.9% 46.4 0s * 67 49 37 26.0000000 2.12825 91.8% 31.6 0s * 129 77 44 25.0000000 2.14057 91.4% 32.5 0s H 162 70 22.0000000 4.42632 79.9% 32.3 0s * 1009 305 31 21.0000000 9.48739 54.8% 31.5 1s 2981 569 17.56111 23 213 21.00000 13.04706 37.9% 27.9 5s 6281 375 19.37569 23 218 21.00000 16.32558 22.3% 28.1 10s Explored 7444 nodes (202116 simplex iterations) in 11.35 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.100000000000e+01, best bound 2.100000000000e+01, gap 0.0%