
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:50:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7749.41.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/grafo7749.41.lp
Reading time = 0.10 seconds
: 60442 rows, 1918 columns, 182719 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 60442 rows, 1918 columns and 182719 nonzeros
Model fingerprint: 0x7478dfac
Variable types: 41 continuous, 1877 integer (1877 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 2.0000000
Presolve removed 10347 rows and 16 columns
Presolve time: 0.37s
Presolved: 50095 rows, 1902 columns, 152005 nonzeros
Variable types: 0 continuous, 1902 integer (1861 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 28775 rows, 23222 columns, 109365 nonzeros


Root relaxation: objective 3.900000e+01, 2809 iterations, 0.99 seconds (0.94 work units)

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

     0     0   39.00000    0  495    8.00000   39.00000   388%     -    3s
H    0     0                      11.0000000   39.00000   255%     -    5s
     0     0   39.00000    0  532   11.00000   39.00000   255%     -    8s
     0     0   39.00000    0  548   11.00000   39.00000   255%     -    9s
     0     0   39.00000    0  598   11.00000   39.00000   255%     -   41s
     0     0   39.00000    0  559   11.00000   39.00000   255%     -   42s
     0     0   39.00000    0  769   11.00000   39.00000   255%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 1
  Cover: 38
  Clique: 9
  MIR: 165
  StrongCG: 2
  GUB cover: 4
  Zero half: 36
  RLT: 52
  Relax-and-lift: 1

Explored 1 nodes (50894 simplex iterations) in 50.05 seconds (49.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 2 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.900000000000e+01, gap 254.5455%

Wrote result file './lp_solutions/grafo7749.41.sol'

