
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:04:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3577.40.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/grafo3577.40.lp
Reading time = 0.24 seconds
: 144936 rows, 1926 columns, 436264 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 144936 rows, 1926 columns and 436264 nonzeros
Model fingerprint: 0x19687652
Variable types: 41 continuous, 1885 integer (1885 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 56847 rows and 25 columns
Presolve time: 1.05s
Presolved: 88089 rows, 1901 columns, 265999 nonzeros
Variable types: 0 continuous, 1901 integer (1860 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1901 rows, 89990 columns, 267900 nonzeros


Root relaxation: objective 3.800000e+01, 2344 iterations, 0.92 seconds (1.18 work units)
Total elapsed time = 9.04s (DegenMoves)

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

     0     0   38.00000    0  381    6.00000   38.00000   533%     -   10s
H    0     0                       8.0000000   38.00000   375%     -   10s
H    0     0                      10.0000000   38.00000   280%     -   10s
     0     0   38.00000    0  586   10.00000   38.00000   280%     -   19s
     0     0   38.00000    0  477   10.00000   38.00000   280%     -   21s
     0     0   38.00000    0  575   10.00000   38.00000   280%     -   40s
     0     0   38.00000    0  502   10.00000   38.00000   280%     -   42s
     0     0   38.00000    0  626   10.00000   38.00000   280%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 31
  Clique: 27
  MIR: 114
  GUB cover: 1
  Zero half: 32
  RLT: 65
  Relax-and-lift: 1
  BQP: 4

Explored 1 nodes (35065 simplex iterations) in 50.04 seconds (57.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.800000000000e+01, gap 280.0000%

Wrote result file './lp_solutions/grafo3577.40.sol'

