Build (method = -2) #dp: 3701 Step-3' Graph: 91 vertices and 305 arcs (0.02s) Step-4' Graph: 41 vertices and 205 arcs (0.02s) #V4/#V3 = 0.45 #A4/#A3 = 0.67 Ready! (0.02s) Optimize a model with 126 rows, 206 columns and 541 nonzeros Presolve removed 67 rows and 77 columns Presolve time: 0.00s Presolved: 59 rows, 129 columns, 318 nonzeros Variable types: 0 continuous, 129 integer (14 binary) Found heuristic solution: objective 170.0000000 Found heuristic solution: objective 159.0000000 Found heuristic solution: objective 107.0000000 Optimize a model with 59 rows, 129 columns and 318 nonzeros Presolve removed 25 rows and 64 columns Root relaxation: infeasible, 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 1.070000000000e+02, best bound 1.070000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.00 seconds Total run time: 0.03 seconds Objective: 107 Solution: 1 x [85] 2 x [1, 84] 1 x [83] 1 x [2, 83] 4 x [82] 1 x [3, 82] 3 x [81] 1 x [4, 81] 2 x [5, 80] 1 x [6, 79] 2 x [78] 1 x [7, 78] 1 x [6, 78] 2 x [77] 1 x [8, 77] 3 x [9, 76] 1 x [75] 2 x [11, 74] 1 x [12, 73] 2 x [13, 72] 3 x [15, 71] 2 x [10, 70] 1 x [19, 69] 3 x [18, 68] 4 x [21, 67] 2 x [20, 66] 1 x [22, 65] 1 x [21, 65] 4 x [16, 64] 1 x [24, 63] 3 x [23, 62] 2 x [28, 61] 3 x [17, 60] 1 x [30, 59] 4 x [14, 58] 1 x [31, 57] 3 x [27, 57] 3 x [32, 56] 1 x [29, 56] 1 x [24, 55] 1 x [14, 54] 2 x [26, 53] 1 x [36, 52] 2 x [33, 52] 2 x [25, 51] 3 x [38, 50] 1 x [39, 49] 1 x [41, 48] 2 x [42, 47] 5 x [40, 47] 1 x [35, 47] 4 x [37, 46] 1 x [44, 45] 2 x [43, 45] 1 x [34, 45] 1 x [9, 9]