
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:50:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5128.37.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/grafo5128.37.lp
Reading time = 0.22 seconds
: 138156 rows, 1825 columns, 415938 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 138156 rows, 1825 columns and 415938 nonzeros
Model fingerprint: 0x941b3363
Variable types: 41 continuous, 1784 integer (1784 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 1.0000000
Presolve removed 54751 rows and 21 columns
Presolve time: 1.08s
Presolved: 83405 rows, 1804 columns, 251962 nonzeros
Variable types: 0 continuous, 1804 integer (1763 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1804 rows, 85209 columns, 253766 nonzeros


Root relaxation: objective 3.800000e+01, 2434 iterations, 1.05 seconds (1.33 work units)
Total elapsed time = 7.97s (DegenMoves)

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

     0     0   38.00000    0  554    9.00000   38.00000   322%     -    8s
     0     0   38.00000    0  692    9.00000   38.00000   322%     -   20s
     0     0   38.00000    0  704    9.00000   38.00000   322%     -   20s
     0     0   38.00000    0  563    9.00000   38.00000   322%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 12
  Clique: 45
  MIR: 105
  StrongCG: 1
  Zero half: 26
  RLT: 91
  BQP: 6

Explored 1 nodes (35842 simplex iterations) in 50.04 seconds (63.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.800000000000e+01, gap 322.2222%

Wrote result file './lp_solutions/grafo5128.37.sol'

