Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:47:28 2012 Optimize a model with 413 rows, 301 columns and 1331 nonzeros Presolve time: 0.00s Presolved: 413 rows, 301 columns, 1331 nonzeros Variable types: 0 continuous, 301 integer (301 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 120 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 95 86.00000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.69644 0 97 68.00000 0.69644 99.0% - 0s 0 0 0.80287 0 97 68.00000 0.80287 98.8% - 0s 0 0 0.80287 0 97 68.00000 0.80287 98.8% - 0s 0 0 0.80287 0 97 68.00000 0.80287 98.8% - 0s H 0 0 65.0000000 0.80287 98.8% - 0s 0 2 0.86486 0 97 65.00000 0.86486 98.7% - 0s * 48 43 31 43.0000000 3.31368 92.3% 28.9 0s * 141 97 30 42.0000000 5.54054 86.8% 27.2 0s H 467 295 41.0000000 8.30212 79.8% 26.7 0s H 521 324 40.0000000 9.23938 76.9% 26.7 0s * 854 454 27 38.0000000 11.44444 69.9% 27.4 1s * 1237 467 27 37.0000000 16.25641 56.1% 27.5 1s * 3327 583 24 36.0000000 24.14634 32.9% 25.2 3s * 3597 538 28 34.0000000 24.55000 27.8% 25.0 4s 4463 489 cutoff 22 34.00000 25.67692 24.5% 24.3 5s Explored 6623 nodes (152082 simplex iterations) in 6.79 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.400000000000e+01, best bound 3.400000000000e+01, gap 0.0%