
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:46:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3322.37.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/grafo3322.37.lp
Reading time = 0.39 seconds
: 234688 rows, 1946 columns, 705718 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 234688 rows, 1946 columns and 705718 nonzeros
Model fingerprint: 0x24ff5fc2
Variable types: 42 continuous, 1904 integer (1904 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 105515 rows and 8 columns
Presolve time: 1.70s
Presolved: 129173 rows, 1938 columns, 389431 nonzeros
Variable types: 0 continuous, 1938 integer (1896 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1929 rows, 131102 columns, 391369 nonzeros


Root relaxation: objective 4.200000e+01, 3461 iterations, 2.60 seconds (3.50 work units)
Total elapsed time = 20.28s (DegenMoves)

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

     0     0   42.00000    0  734    9.00000   42.00000   367%     -   38s
     0     0          -    0         9.00000   42.00000   367%     -   50s

Cutting planes:
  Gomory: 22
  Cover: 27
  Clique: 92
  MIR: 63
  StrongCG: 1
  GUB cover: 1
  Zero half: 38
  RLT: 88
  BQP: 16

Explored 1 nodes (23803 simplex iterations) in 50.02 seconds (69.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.200000000000e+01, gap 366.6667%

Wrote result file './lp_solutions/grafo3322.37.sol'

