Build (method = -2) #dp: 1827 Step-3' Graph: 60 vertices and 217 arcs (0.01s) Step-4' Graph: 30 vertices and 157 arcs (0.01s) #V4/#V3 = 0.50 #A4/#A3 = 0.72 Ready! (0.01s) Optimize a model with 105 rows, 158 columns and 419 nonzeros Presolve removed 56 rows and 56 columns Presolve time: 0.00s Presolved: 49 rows, 102 columns, 253 nonzeros Variable types: 0 continuous, 102 integer (7 binary) Found heuristic solution: objective 183.0000000 Found heuristic solution: objective 167.0000000 Found heuristic solution: objective 126.0000000 Optimize a model with 49 rows, 102 columns and 253 nonzeros Presolved: 49 rows, 102 columns, 253 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 9.500e+01 Factor NZ : 7.030e+02 Factor Ops : 1.328e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.78513968e+03 -1.50489997e+03 5.29e+02 0.00e+00 4.90e+01 0s 1 5.96474710e+02 -4.45394601e+02 5.95e+01 7.22e-16 6.94e+00 0s 2 1.83737233e+02 4.66169962e+01 1.96e+00 2.25e-14 6.49e-01 0s 3 1.43681395e+02 1.18877019e+02 1.03e-01 2.89e-15 1.11e-01 0s 4 1.26742417e+02 1.24646700e+02 3.47e-03 2.22e-16 9.32e-03 0s 5 1.26070262e+02 1.25925102e+02 1.38e-04 4.44e-16 6.45e-04 0s Barrier performed 5 iterations in 0.00 seconds Objective cutoff exceeded Root relaxation: cutoff, 0 iterations, 0.00 seconds Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.260000000000e+02, best bound 1.260000000000e+02, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.02 seconds Objective: 126 Solution: 4 x [75] 1 x [74] 3 x [73] 1 x [72] 3 x [71] 1 x [70] 2 x [69] 4 x [68] 3 x [67] 3 x [66] 3 x [65] 4 x [64] 2 x [63] 2 x [62] 3 x [61] 5 x [60] 6 x [59] 2 x [58] 2 x [1, 57] 3 x [1, 56] 2 x [3, 55] 1 x [4, 54] 1 x [2, 54] 1 x [5, 53] 1 x [5, 52] 1 x [7, 51] 1 x [5, 51] 3 x [8, 50] 3 x [6, 49] 3 x [11, 48] 2 x [10, 47] 4 x [9, 47] 2 x [13, 46] 1 x [12, 45] 3 x [14, 44] 4 x [4, 43] 2 x [17, 42] 1 x [16, 42] 4 x [18, 41] 2 x [19, 40] 2 x [20, 39] 4 x [21, 38] 1 x [20, 38] 1 x [22, 37] 1 x [15, 37] 3 x [22, 36] 3 x [24, 35] 2 x [25, 34] 1 x [23, 33] 2 x [26, 32] 2 x [25, 31] 3 x [28, 30] 1 x [27, 30] 1 x [10, 29]