Build (method = -2) #dp: 3811 Step-3' Graph: 172 vertices and 509 arcs (0.02s) Step-4' Graph: 4 vertices and 173 arcs (0.02s) #V4/#V3 = 0.02 #A4/#A3 = 0.34 Ready! (0.02s) Optimize a model with 90 rows, 174 columns and 518 nonzeros Presolve removed 90 rows and 174 columns Presolve time: 0.00s 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 5.000000000000e+01, best bound 5.000000000000e+01, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.00 seconds Total run time: 0.03 seconds Objective: 50 Solution: 1 x [59, 86] 1 x [59, 85] 1 x [59, 84] 1 x [50, 83] 1 x [48, 82] 1 x [46, 81] 1 x [46, 80] 1 x [39, 79] 1 x [39, 78] 1 x [36, 77] 1 x [36, 76] 1 x [35, 75] 1 x [35, 74] 1 x [34, 73] 1 x [33, 72] 1 x [32, 71] 1 x [32, 70] 1 x [31, 69] 1 x [30, 68] 1 x [29, 67] 1 x [29, 66] 1 x [29, 65] 1 x [28, 64] 1 x [27, 63] 1 x [26, 62] 1 x [25, 61] 1 x [21, 60] 1 x [20, 58] 1 x [19, 57] 1 x [18, 56] 1 x [18, 55] 1 x [17, 54] 1 x [17, 53] 1 x [16, 52] 1 x [15, 51] 1 x [14, 49] 1 x [14, 47] 1 x [13, 45] 1 x [12, 44] 1 x [11, 43] 1 x [11, 42] 1 x [11, 41] 1 x [9, 40] 1 x [8, 38] 1 x [6, 37] 1 x [5, 24] 1 x [4, 23] 1 x [3, 22] 1 x [2, 10] 1 x [1, 7]