
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:10:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo765.37.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/grafo765.37.lp
Reading time = 0.47 seconds
: 290088 rows, 1886 columns, 871794 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 290088 rows, 1886 columns and 871794 nonzeros
Model fingerprint: 0x6c3e3791
Variable types: 40 continuous, 1846 integer (1846 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 4.0000000
Presolve removed 139470 rows and 7 columns
Presolve time: 2.02s
Presolved: 150618 rows, 1879 columns, 453642 nonzeros
Variable types: 0 continuous, 1879 integer (1839 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1873 rows, 152491 columns, 455521 nonzeros


Root relaxation: objective 4.000000e+01, 2879 iterations, 1.95 seconds (2.57 work units)
Total elapsed time = 20.36s (DegenMoves)
Total elapsed time = 26.62s (DegenMoves)

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

     0     0   40.00000    0  553    8.00000   40.00000   400%     -   30s
     0     0  postponed    0         8.00000   40.00000   400%     -   50s

Cutting planes:
  Gomory: 25
  Cover: 43
  Clique: 73
  MIR: 113
  GUB cover: 2
  Zero half: 28
  RLT: 58
  BQP: 17

Explored 1 nodes (20300 simplex iterations) in 50.04 seconds (65.73 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 4 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.000000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo765.37.sol'

