
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:47:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4072.44.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/grafo4072.44.lp
Reading time = 0.11 seconds
: 70969 rows, 2117 columns, 214468 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 70969 rows, 2117 columns and 214468 nonzeros
Model fingerprint: 0x5896f7d3
Variable types: 43 continuous, 2074 integer (2074 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 11223 rows and 23 columns
Presolve time: 0.45s
Presolved: 59746 rows, 2094 columns, 181081 nonzeros
Variable types: 0 continuous, 2094 integer (2051 binary)
Root relaxation presolved: 2094 rows, 61840 columns, 183175 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   29224    3.5954371e+01   0.000000e+00   4.841658e+01      5s
   30774    3.6000000e+01   0.000000e+00   0.000000e+00      5s
   30774    3.6000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 3.600000e+01, 30774 iterations, 4.74 seconds (3.89 work units)
Total elapsed time = 11.47s (DegenMoves)

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

     0     0   36.00000    0  423          -   36.00000      -     -   12s
H    0     0                      12.0000000   36.00000   200%     -   12s
     0     0   36.00000    0  684   12.00000   36.00000   200%     -   21s
     0     0   36.00000    0  627   12.00000   36.00000   200%     -   22s
     0     0   36.00000    0  513   12.00000   36.00000   200%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 38
  Cover: 9
  Clique: 15
  MIR: 114
  StrongCG: 1
  GUB cover: 1
  Zero half: 13
  RLT: 60
  BQP: 1

Explored 1 nodes (71212 simplex iterations) in 50.10 seconds (47.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 12 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.600000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo4072.44.sol'

