
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:30:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11459.37.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/grafo11459.37.lp
Reading time = 0.11 seconds
: 64361 rows, 1748 columns, 194428 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 64361 rows, 1748 columns and 194428 nonzeros
Model fingerprint: 0xa8eb452b
Variable types: 39 continuous, 1709 integer (1709 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 16822 rows and 29 columns
Presolve time: 0.47s
Presolved: 47539 rows, 1719 columns, 144373 nonzeros
Variable types: 0 continuous, 1719 integer (1680 binary)
Root relaxation presolved: 1719 rows, 49258 columns, 146092 nonzeros


Root relaxation: objective 3.500000e+01, 1565 iterations, 0.31 seconds (0.31 work units)

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

     0     0   35.00000    0  407          -   35.00000      -     -    4s
H    0     0                       9.0000000   35.00000   289%     -    4s
H    0     0                      12.0000000   35.00000   192%     -    4s
     0     0   35.00000    0  611   12.00000   35.00000   192%     -   11s
     0     0   35.00000    0  583   12.00000   35.00000   192%     -   11s
H    0     0                      13.0000000   35.00000   169%     -   22s
     0     0   35.00000    0  408   13.00000   35.00000   169%     -   23s
     0     0   35.00000    0  354   13.00000   35.00000   169%     -   23s
     0     0   35.00000    0  409   13.00000   35.00000   169%     -   33s
     0     0   35.00000    0  425   13.00000   35.00000   169%     -   34s
     0     0   35.00000    0  550   13.00000   35.00000   169%     -   43s
H    0     0                      15.0000000   35.00000   133%     -   44s
     0     0   35.00000    0  533   15.00000   35.00000   133%     -   44s
     0     0   35.00000    0  511   15.00000   35.00000   133%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 8
  Clique: 5
  MIR: 82
  StrongCG: 1
  GUB cover: 2
  Zero half: 91
  RLT: 55
  BQP: 2

Explored 1 nodes (56552 simplex iterations) in 50.06 seconds (47.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 13 12 9 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.500000000000e+01, gap 133.3333%

Wrote result file './lp_solutions/grafo11459.37.sol'

