
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:35:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo478.33.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/grafo478.33.lp
Reading time = 0.31 seconds
: 186846 rows, 1168 columns, 561201 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 186846 rows, 1168 columns and 561201 nonzeros
Model fingerprint: 0xf3c0c5dc
Variable types: 26 continuous, 1142 integer (1142 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 91014 rows and 5 columns
Presolve time: 1.34s
Presolved: 95832 rows, 1163 columns, 288312 nonzeros
Variable types: 0 continuous, 1163 integer (1137 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1161 rows, 96993 columns, 289475 nonzeros


Root relaxation: objective 2.700000e+01, 1973 iterations, 1.13 seconds (1.60 work units)
Total elapsed time = 7.26s (DegenMoves)

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

     0     0   27.00000    0  366    6.00000   27.00000   350%     -    9s
H    0     0                       7.0000000   27.00000   286%     -   10s
     0     0   27.00000    0  425    7.00000   27.00000   286%     -   14s
H    0     0                       8.0000000   27.00000   238%     -   15s
     0     0   27.00000    0  361    8.00000   27.00000   238%     -   15s
     0     0   27.00000    0  243    8.00000   27.00000   237%     -   29s
     0     0   27.00000    0  201    8.00000   27.00000   237%     -   30s
     0     0   27.00000    0  378    8.00000   27.00000   237%     -   38s
     0     0   27.00000    0  299    8.00000   27.00000   237%     -   39s
     0     0   27.00000    0  339    8.00000   27.00000   237%     -   46s
     0     0   27.00000    0  335    8.00000   27.00000   237%     -   46s
     0     0   27.00000    0  342    8.00000   27.00000   237%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 15
  Clique: 21
  MIR: 68
  StrongCG: 4
  Zero half: 53
  RLT: 55
  BQP: 2

Explored 1 nodes (27100 simplex iterations) in 50.06 seconds (59.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 6 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 2.700000000000e+01, gap 237.5000%

Wrote result file './lp_solutions/grafo478.33.sol'

