Gurobi 5.0.1 (linux64) logging started Sat Nov 17 20:45:42 2012 Optimize a model with 413 rows, 236 columns and 1266 nonzeros Presolve time: 0.00s Presolved: 413 rows, 236 columns, 1266 nonzeros Variable types: 0 continuous, 236 integer (236 binary) Found heuristic solution: objective 108.0000000 Root relaxation: objective 0.000000e+00, 65 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 30 108.00000 0.00000 100% - 0s H 0 0 103.0000000 0.00000 100% - 0s H 0 0 98.0000000 0.00000 100% - 0s 0 0 1.31250 0 32 98.00000 1.31250 98.7% - 0s 0 0 1.37500 0 32 98.00000 1.37500 98.6% - 0s 0 0 1.37500 0 32 98.00000 1.37500 98.6% - 0s 0 0 1.37500 0 32 98.00000 1.37500 98.6% - 0s 0 0 1.37500 0 32 98.00000 1.37500 98.6% - 0s H 0 0 96.0000000 1.37500 98.6% - 0s H 0 0 92.0000000 1.37500 98.5% - 0s 0 2 1.37500 0 32 92.00000 1.37500 98.5% - 0s * 526 289 23 91.0000000 35.44444 61.1% 33.8 0s * 528 287 21 90.0000000 35.44444 60.6% 33.7 0s * 547 298 20 89.0000000 35.63636 60.0% 33.6 0s * 830 391 34 88.0000000 40.71429 53.7% 34.0 1s * 912 403 35 87.0000000 40.71429 53.2% 33.8 1s * 1095 387 32 85.0000000 40.71429 52.1% 33.1 1s * 1317 363 30 84.0000000 42.59211 49.3% 32.5 1s * 1669 387 32 83.0000000 44.61111 46.3% 31.7 1s * 1875 430 32 82.0000000 47.85714 41.6% 30.8 2s * 2281 488 30 79.0000000 48.69565 38.4% 30.0 2s 4840 786 72.88235 27 135 79.00000 57.00000 27.8% 27.3 5s 11427 670 75.63158 26 136 79.00000 65.75000 16.8% 24.8 10s Cutting planes: Gomory: 1 Zero half: 4 Explored 14649 nodes (349460 simplex iterations) in 11.83 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.900000000000e+01, best bound 7.900000000000e+01, gap 0.0%