Build (method = -2) #dp: 461 Step-3' Graph: 84 vertices and 245 arcs (0.00s) Step-4' Graph: 27 vertices and 131 arcs (0.00s) #V4/#V3 = 0.32 #A4/#A3 = 0.53 Ready! (0.00s) Optimize a model with 64 rows, 132 columns and 346 nonzeros Presolve removed 25 rows and 30 columns Presolve time: 0.00s Presolved: 39 rows, 102 columns, 264 nonzeros Variable types: 0 continuous, 102 integer (0 binary) Found heuristic solution: objective 3660.0000000 Found heuristic solution: objective 3186.0000000 Found heuristic solution: objective 3091.0000000 Optimize a model with 39 rows, 102 columns and 264 nonzeros Presolved: 39 rows, 102 columns, 264 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.250e+02 Factor NZ : 4.300e+02 Factor Ops : 5.756e+03 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.70358414e+04 -1.91010595e+04 3.95e+04 2.22e-16 6.71e+02 0s 1 5.90753847e+03 -5.92763640e+03 4.73e+03 7.77e-16 1.00e+02 0s 2 3.23443171e+03 5.40752920e+02 1.02e+02 9.66e-15 1.28e+01 0s 3 2.61171460e+03 1.96583433e+03 1.22e+00 1.89e-15 2.95e+00 0s 4 2.47582273e+03 2.36715226e+03 5.75e-02 4.44e-16 4.96e-01 0s 5 2.44843927e+03 2.43956124e+03 5.95e-03 3.33e-16 4.05e-02 0s 6 2.44600125e+03 2.44599506e+03 1.88e-12 1.34e-16 2.83e-05 0s 7 2.44600000e+03 2.44600000e+03 1.59e-12 2.22e-16 2.83e-11 0s Barrier solved model in 7 iterations and 0.00 seconds Optimal objective 2.44600000e+03 Root relaxation: objective 2.446000e+03, 34 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 2446.0000000 2446.00000 0.0% - 0s Explored 0 nodes (34 simplex iterations) in 0.01 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.446000000000e+03, best bound 2.446000000000e+03, gap 0.0% Preprocessing time: 0.01 seconds Gurobi run time: 0.01 seconds Total run time: 0.02 seconds Objective: 2446 Solution: 147 x [1] 189 x [2] 111 x [3] 30 x [4] 166 x [4, 37] 72 x [5] 73 x [6] 3 x [7] 2 x [7, 36] 28 x [8, 35] 31 x [9] 169 x [10, 36] 13 x [11, 33] 91 x [11, 34] 29 x [12, 32] 2 x [12, 33] 24 x [12, 35] 169 x [13, 33] 111 x [14, 35] 236 x [15] 17 x [16, 29] 127 x [16, 30] 3 x [17, 27] 2 x [17, 29] 19 x [18, 25] 24 x [18, 27] 32 x [18, 31] 97 x [19, 29] 99 x [20, 27] 147 x [21, 22] 35 x [21, 24] 13 x [22, 23] 16 x [22, 24] 68 x [26, 27] 16 x [28, 29] 35 x [30, 31]