
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:46:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2553.18.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo2553.18.lp
Reading time = 0.01 seconds
: 2217 rows, 238 columns, 6646 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 2217 rows, 238 columns and 6646 nonzeros
Model fingerprint: 0x1d6df5c4
Variable types: 10 continuous, 228 integer (228 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 270 rows and 15 columns
Presolve time: 0.05s
Presolved: 1947 rows, 223 columns, 5941 nonzeros
Variable types: 0 continuous, 223 integer (213 binary)

Root relaxation: objective 5.000000e+00, 69 iterations, 0.01 seconds (0.00 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    5.00000    0   34   -0.00000    5.00000      -     -    0s
H    0     0                       1.0000000    5.00000   400%     -    0s
H    0     0                       3.0000000    5.00000  66.7%     -    0s
     0     0    5.00000    0   61    3.00000    5.00000  66.7%     -    0s
     0     0    5.00000    0   60    3.00000    5.00000  66.7%     -    0s
H    0     0                       4.0000000    5.00000  25.0%     -    0s
     0     0    5.00000    0   53    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   50    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   14    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   28    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   21    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   22    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   27    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   21    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   17    4.00000    5.00000  25.0%     -    1s
     0     0    5.00000    0   14    4.00000    5.00000  25.0%     -    1s
     0     2    5.00000    0   10    4.00000    5.00000  25.0%     -    1s
    93    74    5.00000   21   86    4.00000    5.00000  25.0%  70.4    5s
   503    55 infeasible   29         4.00000    5.00000  25.0%  78.6   10s

Cutting planes:
  Gomory: 1
  Cover: 2
  MIR: 3
  StrongCG: 1
  Flow cover: 9
  GUB cover: 3
  RLT: 4
  Relax-and-lift: 1

Explored 747 nodes (56020 simplex iterations) in 10.26 seconds (1.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 1 -0 

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2553.18.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 02:02:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2553.18.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo2553.18.lp
Reading time = 0.01 seconds
: 2217 rows, 238 columns, 6646 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 2217 rows, 238 columns and 6646 nonzeros
Model fingerprint: 0x1d6df5c4
Variable types: 10 continuous, 228 integer (228 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 270 rows and 15 columns
Presolve time: 0.03s
Presolved: 1947 rows, 223 columns, 5941 nonzeros
Variable types: 0 continuous, 223 integer (213 binary)

Root relaxation: objective 5.000000e+00, 69 iterations, 0.01 seconds (0.00 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    5.00000    0   34   -0.00000    5.00000      -     -    0s
H    0     0                       1.0000000    5.00000   400%     -    0s
H    0     0                       3.0000000    5.00000  66.7%     -    0s
     0     0    5.00000    0   61    3.00000    5.00000  66.7%     -    0s
     0     0    5.00000    0   60    3.00000    5.00000  66.7%     -    0s
H    0     0                       4.0000000    5.00000  25.0%     -    0s
     0     0    5.00000    0   53    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   50    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   14    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   28    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   21    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   22    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   27    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   21    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   17    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   14    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   10    4.00000    5.00000  25.0%     -    0s
   503    55 infeasible   29         4.00000    5.00000  25.0%  78.6    5s

Cutting planes:
  Gomory: 1
  Cover: 2
  MIR: 3
  StrongCG: 1
  Flow cover: 9
  GUB cover: 3
  RLT: 4
  Relax-and-lift: 1

Explored 747 nodes (56020 simplex iterations) in 5.34 seconds (1.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 1 -0 

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2553.18.sol'

