Build (method = -2) #dp: 1276 Step-3' Graph: 102 vertices and 299 arcs (0.01s) Step-4' Graph: 4 vertices and 103 arcs (0.01s) #V4/#V3 = 0.04 #A4/#A3 = 0.34 Ready! (0.01s) Optimize a model with 55 rows, 104 columns and 308 nonzeros Presolve removed 55 rows and 104 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 3.000000000000e+01, best bound 3.000000000000e+01, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.00 seconds Total run time: 0.01 seconds Objective: 30 Solution: 1 x [13, 44] 1 x [13, 42] 1 x [36, 41] 1 x [33, 40] 1 x [24, 38] 1 x [24, 37] 1 x [22, 35] 1 x [22, 32] 1 x [20, 30] 1 x [20, 29] 1 x [19, 26] 1 x [19, 23] 1 x [15, 17] 1 x [14, 16] 1 x [12, 27] 1 x [12, 18] 1 x [11, 45] 1 x [5, 43] 1 x [4, 39] 1 x [4, 34] 1 x [3, 31] 1 x [1, 28] 1 x [25, 51] 1 x [21, 50] 1 x [10, 49] 1 x [9, 48] 1 x [8, 48] 1 x [7, 48] 1 x [6, 47] 1 x [2, 46]