
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:11:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9975.32.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/grafo9975.32.lp
Reading time = 0.14 seconds
: 82812 rows, 1201 columns, 249201 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 82812 rows, 1201 columns and 249201 nonzeros
Model fingerprint: 0x6db4cea4
Variable types: 30 continuous, 1171 integer (1171 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 35087 rows and 9 columns
Presolve time: 0.56s
Presolved: 47725 rows, 1192 columns, 144084 nonzeros
Variable types: 0 continuous, 1192 integer (1162 binary)
Root relaxation presolved: 1192 rows, 48917 columns, 145276 nonzeros


Root relaxation: objective 3.000000e+01, 1462 iterations, 0.37 seconds (0.47 work units)

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

     0     0   30.00000    0  444          -   30.00000      -     -    3s
H    0     0                       3.0000000   30.00000   900%     -    3s
H    0     0                       8.0000000   30.00000   275%     -    3s
H    0     0                       9.0000000   30.00000   233%     -    4s
     0     0   30.00000    0  585    9.00000   30.00000   233%     -    7s
     0     0   30.00000    0  550    9.00000   30.00000   233%     -    7s
     0     0   30.00000    0  425    9.00000   30.00000   233%     -   19s
H    0     0                      10.0000000   30.00000   200%     -   19s
     0     0   30.00000    0  403   10.00000   30.00000   200%     -   19s
     0     0   30.00000    0  339   10.00000   30.00000   200%     -   35s
     0     0   30.00000    0  318   10.00000   30.00000   200%     -   35s
     0     0   30.00000    0  413   10.00000   30.00000   200%     -   40s
     0     0   30.00000    0  392   10.00000   30.00000   200%     -   41s
     0     0   30.00000    0  381   10.00000   30.00000   200%     -   47s
     0     0   30.00000    0  404   10.00000   30.00000   200%     -   47s
     0     0   30.00000    0  415   10.00000   30.00000   200%     -   50s

Cutting planes:
  Cover: 10
  Clique: 21
  MIR: 65
  StrongCG: 1
  GUB cover: 1
  Zero half: 33
  RLT: 60
  BQP: 3

Explored 1 nodes (49300 simplex iterations) in 50.05 seconds (53.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 8 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.000000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo9975.32.sol'

