
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:09:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3885.40.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/grafo3885.40.lp
Reading time = 0.11 seconds
: 70746 rows, 1981 columns, 213784 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 70746 rows, 1981 columns and 213784 nonzeros
Model fingerprint: 0x8e410470
Variable types: 43 continuous, 1938 integer (1938 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 14975 rows and 27 columns
Presolve time: 0.49s
Presolved: 55771 rows, 1954 columns, 169162 nonzeros
Variable types: 0 continuous, 1954 integer (1911 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1954 rows, 57725 columns, 171116 nonzeros


Root relaxation: objective 4.300000e+01, 2007 iterations, 0.50 seconds (0.37 work units)

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

     0     0   43.00000    0  579   11.00000   43.00000   291%     -    5s
H    0     0                      12.0000000   43.00000   258%     -    5s
     0     0   43.00000    0  862   12.00000   43.00000   258%     -   17s
H    0     0                      13.0000000   43.00000   231%     -   18s
     0     0   43.00000    0  857   13.00000   43.00000   231%     -   18s
H    0     0                      14.0000000   43.00000   207%     -   46s
     0     0   43.00000    0  520   14.00000   43.00000   207%     -   47s
     0     0   43.00000    0  485   14.00000   43.00000   207%     -   48s
     0     0          -    0        14.00000   43.00000   207%     -   50s

Cutting planes:
  Cover: 37
  Clique: 15
  MIR: 185
  StrongCG: 2
  GUB cover: 8
  Zero half: 53
  RLT: 48

Explored 1 nodes (45227 simplex iterations) in 50.07 seconds (46.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 12 ... 4

Time limit reached
Best objective 1.400000000000e+01, best bound 4.300000000000e+01, gap 207.1429%

Wrote result file './lp_solutions/grafo3885.40.sol'

