
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:49:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7283.39.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/grafo7283.39.lp
Reading time = 0.12 seconds
: 76909 rows, 1898 columns, 232175 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 76909 rows, 1898 columns and 232175 nonzeros
Model fingerprint: 0xeddd98b3
Variable types: 41 continuous, 1857 integer (1857 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]
Presolve removed 21475 rows and 24 columns
Presolve time: 0.50s
Presolved: 55434 rows, 1874 columns, 168110 nonzeros
Variable types: 0 continuous, 1874 integer (1833 binary)
Root relaxation presolved: 1868 rows, 57302 columns, 169984 nonzeros


Root relaxation: objective 4.400000e+01, 1843 iterations, 0.42 seconds (0.43 work units)

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

     0     0   44.00000    0  315          -   44.00000      -     -    3s
H    0     0                       9.0000000   44.00000   389%     -    4s
     0     0   44.00000    0  611    9.00000   44.00000   389%     -    8s
     0     0   44.00000    0  596    9.00000   44.00000   389%     -    9s
H    0     0                      11.0000000   44.00000   300%     -   30s
H    0     0                      12.0000000   44.00000   267%     -   30s
H    0     0                      13.0000000   44.00000   238%     -   30s
     0     0   44.00000    0  469   13.00000   44.00000   238%     -   31s
     0     0   44.00000    0  445   13.00000   44.00000   238%     -   31s
     0     0   44.00000    0  514   13.00000   44.00000   238%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 1
  Cover: 28
  Clique: 27
  MIR: 102
  GUB cover: 2
  Inf proof: 1
  Zero half: 26
  RLT: 63
  BQP: 6

Explored 1 nodes (48364 simplex iterations) in 50.09 seconds (51.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 11 9 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.400000000000e+01, gap 238.4615%

Wrote result file './lp_solutions/grafo7283.39.sol'

