Build (method = -2) #dp: 5569 Step-3' Graph: 127 vertices and 2381 arcs (0.02s) Step-4' Graph: 126 vertices and 2379 arcs (0.02s) #V4/#V3 = 0.99 #A4/#A3 = 1.00 Ready! (0.02s) Optimize a model with 191 rows, 2380 columns and 6892 nonzeros Presolve removed 27 rows and 27 columns Presolve time: 0.04s Presolved: 164 rows, 2353 columns, 6838 nonzeros Variable types: 0 continuous, 2353 integer (1255 binary) Found heuristic solution: objective 70.0000000 Optimize a model with 164 rows, 2353 columns and 6838 nonzeros Presolved: 164 rows, 2353 columns, 6838 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 5.277e+03 Factor NZ : 9.673e+03 (roughly 1 MByte of memory) Factor Ops : 7.691e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.93931831e+03 -1.12201391e+04 6.00e+03 1.66e-01 3.13e+01 0s 1 1.21979406e+03 -4.66441077e+03 1.32e+03 6.66e-16 7.20e+00 0s 2 2.64060215e+02 -1.77645715e+03 1.19e+02 5.55e-16 9.20e-01 0s 3 1.26941065e+02 -2.95927800e+02 1.05e+01 5.00e-16 1.20e-01 0s 4 7.35388904e+01 -3.88267507e+01 2.51e+00 4.86e-16 2.88e-02 0s 5 5.83145366e+01 -1.05694105e-01 1.45e+00 2.38e-16 1.44e-02 0s 6 4.74331620e+01 1.23180321e+01 7.39e-01 2.22e-16 8.22e-03 0s 7 4.46778544e+01 1.70722428e+01 5.79e-01 1.93e-16 6.38e-03 0s 8 3.81393540e+01 2.72143090e+01 2.35e-01 2.22e-16 2.45e-03 0s 9 3.65408385e+01 3.08411296e+01 7.97e-02 2.22e-16 1.23e-03 0s 10 3.55429998e+01 3.33166553e+01 2.79e-02 2.42e-16 4.76e-04 0s 11 3.52160710e+01 3.40792265e+01 1.32e-02 2.22e-16 2.42e-04 0s 12 3.50554047e+01 3.44787917e+01 6.29e-03 2.22e-16 1.22e-04 0s 13 3.49739157e+01 3.46078133e+01 3.21e-03 2.22e-16 7.76e-05 0s 14 3.49420081e+01 3.47531573e+01 2.20e-03 2.22e-16 4.00e-05 0s 15 3.49177291e+01 3.47836573e+01 1.40e-03 1.17e-16 2.84e-05 0s 16 3.49008314e+01 3.48726624e+01 1.38e-04 2.22e-16 5.96e-06 0s 17 3.48933813e+01 3.48922648e+01 2.66e-13 2.22e-16 2.36e-07 0s 18 3.48933334e+01 3.48933323e+01 9.23e-14 2.22e-16 2.36e-10 0s 19 3.48933333e+01 3.48933333e+01 5.19e-13 2.81e-16 2.45e-16 0s Barrier solved model in 19 iterations and 0.04 seconds Optimal objective 3.48933333e+01 Root relaxation: objective 3.489333e+01, 1987 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 34.89333 0 30 70.00000 34.89333 50.2% - 0s H 0 0 35.0000000 34.89333 0.30% - 0s Explored 0 nodes (4292 simplex iterations) in 0.32 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.32 seconds Total run time: 0.36 seconds Objective: 35 Solution: 1 x [32, 65] 1 x [33, 64] 1 x [34, 63] 1 x [5, 29, 63] 1 x [17, 23, 63] 1 x [14, 25, 62] 1 x [38, 61] 1 x [40, 60] 1 x [35, 60] 1 x [3, 16, 25, 59] 3 x [43, 58] 1 x [6, 37, 57] 1 x [24, 24, 57] 1 x [11, 18, 20, 57] 1 x [44, 56] 1 x [7, 38, 56] 1 x [4, 42, 55] 2 x [18, 28, 54] 2 x [45, 53] 1 x [46, 52] 1 x [9, 42, 51] 1 x [19, 30, 50] 1 x [10, 17, 26, 50] 2 x [19, 31, 49] 1 x [48, 48] 1 x [8, 15, 27, 47] 1 x [12, 23, 24, 47] 1 x [20, 41, 42] 1 x [13, 21, 29, 39] 1 x [1, 2, 10, 22, 33, 36]