
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:01:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5476.43.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/grafo5476.43.lp
Reading time = 0.12 seconds
: 75554 rows, 2242 columns, 228431 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 75554 rows, 2242 columns and 228431 nonzeros
Model fingerprint: 0x29c834b9
Variable types: 45 continuous, 2197 integer (2197 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 3.0000000
Presolve removed 12786 rows and 21 columns
Presolve time: 0.51s
Presolved: 62768 rows, 2221 columns, 190587 nonzeros
Variable types: 0 continuous, 2221 integer (2176 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 2221 rows, 64989 columns, 192808 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27558    3.7958476e+01   0.000000e+00   4.212844e+03      5s
   45465    3.8000000e+01   0.000000e+00   0.000000e+00      9s
   45465    3.8000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.800000e+01, 45465 iterations, 7.97 seconds (7.18 work units)
Total elapsed time = 17.06s (DegenMoves)

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

     0     0   38.00000    0  587   14.00000   38.00000   171%     -   18s
H    0     0                      15.0000000   38.00000   153%     -   20s
     0     0   38.00000    0  781   15.00000   38.00000   153%     -   28s
     0     0   38.00000    0  746   15.00000   38.00000   153%     -   29s
     0     0   38.00000    0  448   15.00000   38.00000   153%     -   43s
     0     0   38.00000    0  526   15.00000   38.00000   153%     -   45s
     0     0          -    0        15.00000   38.00000   153%     -   50s

Cutting planes:
  Cover: 27
  Clique: 14
  MIR: 99
  GUB cover: 2
  Zero half: 61
  RLT: 56
  BQP: 5

Explored 1 nodes (81271 simplex iterations) in 50.07 seconds (43.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 14 3 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.800000000000e+01, gap 153.3333%

Wrote result file './lp_solutions/grafo5476.43.sol'

