Build (method = -2) #dp: 3862 Step-3' Graph: 93 vertices and 1301 arcs (0.02s) Step-4' Graph: 74 vertices and 1263 arcs (0.02s) #V4/#V3 = 0.80 #A4/#A3 = 0.97 Ready! (0.02s) Optimize a model with 145 rows, 1264 columns and 3649 nonzeros Presolve removed 28 rows and 44 columns Presolve time: 0.02s Presolved: 117 rows, 1220 columns, 3536 nonzeros Variable types: 0 continuous, 1220 integer (0 binary) Found heuristic solution: objective 432.0000000 Optimize a model with 117 rows, 1220 columns and 3536 nonzeros Presolved: 117 rows, 1220 columns, 3536 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.876e+03 Factor NZ : 3.532e+03 Factor Ops : 1.446e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 7.81298306e+03 -3.31111516e+04 9.75e+04 2.22e-16 1.26e+02 0s 1 2.36415160e+03 -1.12525919e+04 1.61e+04 1.22e-15 2.25e+01 0s 2 6.66483966e+02 -4.01122303e+03 1.66e+03 4.22e-15 3.32e+00 0s 3 4.50434373e+02 -8.24220794e+02 8.57e+01 7.33e-15 5.56e-01 0s 4 3.67534147e+02 -3.78092978e+02 5.16e+01 4.22e-15 3.19e-01 0s 5 2.95673792e+02 -1.91349433e+02 2.30e+01 2.89e-15 2.03e-01 0s 6 2.76324427e+02 -1.73377767e+01 1.58e+01 1.67e-15 1.21e-01 0s 7 2.42279906e+02 9.70510014e+01 6.22e+00 6.66e-16 5.93e-02 0s 8 2.24152967e+02 1.79449859e+02 5.39e-01 5.97e-16 1.80e-02 0s 9 2.20019006e+02 2.02287718e+02 2.14e-01 7.44e-16 7.14e-03 0s 10 2.16945831e+02 2.11358068e+02 2.24e-02 4.74e-16 2.25e-03 0s 11 2.16225651e+02 2.15140425e+02 3.63e-03 4.95e-16 4.37e-04 0s 12 2.16042167e+02 2.15897875e+02 6.42e-04 6.66e-16 5.81e-05 0s 13 2.15992006e+02 2.15985578e+02 1.78e-05 8.04e-16 2.59e-06 0s 14 2.15990196e+02 2.15990196e+02 8.97e-10 7.45e-16 1.03e-10 0s Barrier solved model in 14 iterations and 0.02 seconds Optimal objective 2.15990196e+02 Root relaxation: objective 2.159902e+02, 163 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 215.99020 0 40 432.00000 215.99020 50.0% - 0s H 0 0 217.0000000 215.99020 0.47% - 0s H 0 0 216.0000000 215.99020 0.00% - 0s Explored 0 nodes (289 simplex iterations) in 0.08 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.160000000000e+02, best bound 2.160000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.08 seconds Total run time: 0.11 seconds Objective: 216 Solution: 7 x [20, 71] 6 x [22, 70] 1 x [19, 70] 5 x [23, 69] 1 x [19, 69] 3 x [24, 68] 1 x [19, 68] 7 x [25, 67] 2 x [25, 66] 10 x [26, 65] 5 x [28, 64] 8 x [27, 64] 6 x [29, 63] 1 x [26, 63] 7 x [30, 62] 6 x [31, 61] 4 x [32, 60] 1 x [1, 2, 60] 7 x [33, 59] 1 x [2, 2, 59] 4 x [34, 58] 3 x [2, 3, 58] 7 x [35, 57] 2 x [2, 4, 57] 6 x [36, 56] 3 x [37, 55] 4 x [38, 54] 2 x [2, 7, 54] 9 x [39, 53] 3 x [40, 52] 2 x [3, 8, 52] 5 x [41, 51] 2 x [2, 10, 51] 1 x [4, 8, 51] 1 x [5, 7, 51] 7 x [42, 50] 4 x [43, 49] 1 x [1, 14, 48] 4 x [6, 9, 48] 6 x [45, 47] 2 x [4, 12, 47] 1 x [2, 14, 46] 2 x [5, 12, 46] 3 x [46, 46] 2 x [6, 12, 45] 4 x [3, 16, 44] 5 x [5, 14, 44] 2 x [6, 13, 44] 1 x [7, 12, 44] 1 x [8, 11, 44] 1 x [10, 10, 43] 1 x [5, 16, 42] 4 x [7, 16, 40] 2 x [8, 15, 40] 1 x [8, 16, 39] 5 x [11, 15, 37] 2 x [11, 16, 36] 3 x [13, 16, 34] 2 x [14, 17, 32] 1 x [17, 22, 23] 2 x [18, 21, 22] 1 x [17, 21, 22] 3 x [19, 20, 21]