Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:23:01 2012 Optimize a model with 479 rows, 454 columns and 1649 nonzeros Presolve removed 0 rows and 19 columns Presolve time: 0.00s Presolved: 479 rows, 435 columns, 1630 nonzeros Variable types: 0 continuous, 435 integer (434 binary) Found heuristic solution: objective 99.0000000 Root relaxation: objective 0.000000e+00, 318 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 0 186 99.00000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s 0 0 0.42473 0 187 64.00000 0.42473 99.3% - 0s H 0 0 58.0000000 0.42473 99.3% - 0s 0 0 1.00000 0 188 58.00000 1.00000 98.3% - 0s H 0 0 51.0000000 1.00000 98.0% - 0s 0 0 1.07482 0 190 51.00000 1.07482 97.9% - 0s H 0 0 50.0000000 1.07482 97.9% - 0s 0 0 1.07907 0 193 50.00000 1.07907 97.8% - 0s 0 0 1.07907 0 193 50.00000 1.07907 97.8% - 0s H 0 0 36.0000000 1.07907 97.0% - 0s 0 2 1.08030 0 192 36.00000 1.08030 97.0% - 0s H 27 27 32.0000000 1.35533 95.8% 45.0 0s * 52 45 31 18.0000000 1.35533 92.5% 34.4 0s H 54 33 17.0000000 1.35533 92.0% 35.6 0s H 396 107 15.0000000 6.43137 57.1% 35.3 0s * 487 79 12 14.0000000 8.17391 41.6% 36.0 0s Cutting planes: Gomory: 3 Zero half: 1 Mod-K: 1 Explored 633 nodes (23121 simplex iterations) in 0.99 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%