
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:40:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5475.40.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/grafo5475.40.lp
Reading time = 0.25 seconds
: 128185 rows, 1955 columns, 386024 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 128185 rows, 1955 columns and 386024 nonzeros
Model fingerprint: 0x9bedb379
Variable types: 41 continuous, 1914 integer (1914 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 47270 rows and 25 columns
Presolve time: 1.21s
Presolved: 80915 rows, 1930 columns, 244645 nonzeros
Variable types: 0 continuous, 1930 integer (1889 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1930 rows, 82845 columns, 246575 nonzeros


Root relaxation: objective 3.700000e+01, 2332 iterations, 0.83 seconds (0.76 work units)
Total elapsed time = 10.22s (DegenMoves)

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

     0     0   37.00000    0  503    5.00000   37.00000   640%     -   11s
H    0     0                       7.0000000   37.00000   429%     -   11s
     0     0   37.00000    0  695    7.00000   37.00000   429%     -   23s
H    0     0                       9.0000000   37.00000   311%     -   23s
     0     0   37.00000    0  659    9.00000   37.00000   311%     -   24s
     0     0   37.00000    0  640    9.00000   37.00000   311%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 44
  Cover: 26
  Clique: 21
  MIR: 94
  GUB cover: 1
  Zero half: 21
  RLT: 53
  BQP: 3

Explored 1 nodes (31170 simplex iterations) in 50.04 seconds (46.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 7 5 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.700000000000e+01, gap 311.1111%

Wrote result file './lp_solutions/grafo5475.40.sol'

