Build (method = -2) #dp: 4011 Step-3' Graph: 114 vertices and 366 arcs (0.02s) Step-4' Graph: 35 vertices and 208 arcs (0.02s) #V4/#V3 = 0.31 #A4/#A3 = 0.57 Ready! (0.02s) Optimize a model with 123 rows, 209 columns and 562 nonzeros Presolve removed 53 rows and 62 columns Presolve time: 0.00s Presolved: 70 rows, 147 columns, 376 nonzeros Variable types: 0 continuous, 147 integer (9 binary) Found heuristic solution: objective 172.0000000 Found heuristic solution: objective 145.0000000 Found heuristic solution: objective 108.0000000 Optimize a model with 70 rows, 147 columns and 376 nonzeros Presolved: 70 rows, 147 columns, 376 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.370e+02 Factor NZ : 1.019e+03 Factor Ops : 2.092e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 4.58293734e+03 -4.58795777e+03 4.99e+02 2.22e-16 9.96e+01 0s 1 1.08791228e+03 -1.48720231e+03 7.28e+01 1.11e-15 1.58e+01 0s 2 1.92967677e+02 -2.32251602e+02 2.40e+00 2.66e-15 1.47e+00 0s 3 1.27822001e+02 2.00243217e+01 2.09e-02 1.07e-14 3.25e-01 0s 4 1.07623810e+02 8.41559318e+01 5.45e-03 6.66e-16 7.07e-02 0s 5 1.00168112e+02 9.85199914e+01 2.80e-04 1.33e-15 4.96e-03 0s 6 1.00000132e+02 9.99998192e+01 4.65e-08 6.08e-16 9.43e-07 0s 7 1.00000000e+02 1.00000000e+02 6.38e-14 7.45e-16 9.69e-13 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 1.00000000e+02 Root relaxation: objective 1.000000e+02, 64 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 100.0000000 100.00000 0.0% - 0s Explored 0 nodes (64 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.000000000000e+02, best bound 1.000000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.01 seconds Total run time: 0.04 seconds Objective: 100 Solution: 5 x [7, 88] 2 x [16, 87] 1 x [20, 86] 1 x [18, 85] 2 x [15, 84] 1 x [14, 83] 1 x [9, 82] 2 x [27, 81] 3 x [19, 80] 3 x [17, 79] 1 x [30, 78] 3 x [31, 77] 1 x [35, 76] 2 x [33, 75] 2 x [32, 74] 2 x [28, 73] 2 x [25, 72] 3 x [13, 71] 4 x [38, 70] 2 x [43, 69] 1 x [37, 69] 2 x [44, 68] 4 x [36, 67] 3 x [46, 66] 3 x [47, 65] 1 x [48, 64] 1 x [6, 63] 2 x [40, 62] 2 x [10, 61] 4 x [48, 60] 2 x [2, 59] 3 x [54, 58] 2 x [55, 57] 1 x [1, 56] 1 x [56, 56] 1 x [1, 53] 2 x [4, 52] 1 x [3, 51] 1 x [5, 50] 2 x [45, 49] 1 x [39, 42] 4 x [37, 41] 3 x [30, 39] 1 x [7, 34] 1 x [8, 29] 1 x [12, 26] 3 x [23, 24] 1 x [11, 24] 3 x [21, 22]