Gurobi 5.6.3 (linux64) logging started Wed Oct 8 05:08:14 2014 Optimize a model with 53361 rows, 53131 columns and 211830 nonzeros Presolve time: 1.65s Presolved: 53361 rows, 53131 columns, 211830 nonzeros Variable types: 1 continuous, 53130 integer (53130 binary) Found heuristic solution: objective 1.1159495 Found heuristic solution: objective 1.0291721 Found heuristic solution: objective 1.0108874 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 10764 8.0404360e-02 1.553485e+03 0.000000e+00 5s 11910 8.0858995e-02 0.000000e+00 0.000000e+00 7s Root relaxation: objective 8.085899e-02, 11910 iterations, 6.85 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.08086 0 2048 1.01089 0.08086 92.0% - 9s H 0 0 0.1415023 0.08086 42.9% - 14s 0 0 0.08407 0 1670 0.14150 0.08407 40.6% - 19s 0 0 0.08407 0 1662 0.14150 0.08407 40.6% - 20s 0 0 0.08511 0 1763 0.14150 0.08511 39.9% - 21s 0 0 0.08537 0 1725 0.14150 0.08537 39.7% - 21s H 0 0 0.1415016 0.08537 39.7% - 21s 0 0 0.08634 0 1616 0.14150 0.08634 39.0% - 21s 0 0 0.08637 0 1646 0.14150 0.08637 39.0% - 21s 0 0 0.08637 0 1556 0.14150 0.08637 39.0% - 22s 0 2 0.08637 0 1556 0.14150 0.08637 39.0% - 23s 20 22 0.09182 10 1469 0.14150 0.08761 38.1% 670 25s * 102 96 55 0.1410257 0.08761 37.9% 375 28s * 104 96 56 0.1401399 0.08761 37.5% 368 28s H 108 90 0.1393859 0.08761 37.1% 364 28s H 135 116 0.1320056 0.08761 33.6% 348 29s H 162 132 0.1300369 0.08780 32.5% 336 30s * 185 134 11 0.1299276 0.08919 31.4% 333 30s 222 97 infeasible 24 0.12993 0.09439 27.3% 461 35s Cutting planes: Gomory: 6 MIR: 30 Zero half: 2 Explored 320 nodes (170390 simplex iterations) in 38.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.299276046741e-01, best bound 1.299276046741e-01, gap 0.0%