
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:43:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1857.10.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/grafo1857.10.lp
Reading time = 0.01 seconds
: 2411 rows, 123 columns, 7234 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 2411 rows, 123 columns and 7234 nonzeros
Model fingerprint: 0x0787fe85
Variable types: 8 continuous, 115 integer (115 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 1274 rows and 3 columns
Presolve time: 0.02s
Presolved: 1137 rows, 120 columns, 3433 nonzeros
Variable types: 0 continuous, 120 integer (112 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 9.000000e+00, 123 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    9.00000    0   34    2.00000    9.00000   350%     -    0s
H    0     0                       3.0000000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   61    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   59    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   65    4.00000    9.00000   125%     -    0s
     0     0    8.66667    0   63    4.00000    8.66667   117%     -    0s
     0     0    8.00000    0   61    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   54    4.00000    8.00000   100%     -    0s
     0     0    7.66667    0   56    4.00000    7.66667  91.7%     -    0s
     0     0    7.66667    0   54    4.00000    7.66667  91.7%     -    0s
     0     0    7.00000    0   57    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   57    4.00000    7.00000  75.0%     -    0s
     0     2    7.00000    0   48    4.00000    7.00000  75.0%     -    0s

Cutting planes:
  Gomory: 2
  Cover: 19
  Clique: 7
  MIR: 48
  StrongCG: 1
  Inf proof: 47
  Zero half: 12
  RLT: 31

Explored 2298 nodes (66275 simplex iterations) in 2.14 seconds (1.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 2 -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/grafo1857.10.sol'

