
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:46:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7300.41.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/grafo7300.41.lp
Reading time = 0.17 seconds
: 111371 rows, 2106 columns, 335754 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 111371 rows, 2106 columns and 335754 nonzeros
Model fingerprint: 0x28d2007f
Variable types: 43 continuous, 2063 integer (2063 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 36364 rows and 10 columns
Presolve time: 0.72s
Presolved: 75007 rows, 2096 columns, 226973 nonzeros
Variable types: 0 continuous, 2096 integer (2053 binary)
Root relaxation presolved: 2092 rows, 77099 columns, 229069 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25608    4.7724590e+01   0.000000e+00   1.193027e+04      5s
   53356    4.8000000e+01   0.000000e+00   0.000000e+00     10s
   53356    4.8000000e+01   0.000000e+00   0.000000e+00     10s
   53356    4.8000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.800000e+01, 53356 iterations, 9.06 seconds (6.80 work units)
Total elapsed time = 10.13s (DegenMoves)
Total elapsed time = 21.15s (DegenMoves)
Total elapsed time = 25.90s (DegenMoves)

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

     0     0   48.00000    0  624          -   48.00000      -     -   26s
H    0     0                       6.0000000   48.00000   700%     -   26s
H    0     0                       8.0000000   48.00000   500%     -   26s
H    0     0                      11.0000000   48.00000   336%     -   29s
H    0     0                      12.0000000   48.00000   300%     -   29s
     0     0   48.00000    0 1064   12.00000   48.00000   300%     -   50s

Cutting planes:
  Gomory: 42
  Cover: 36
  Clique: 26
  MIR: 100
  GUB cover: 2
  Zero half: 16
  RLT: 64
  BQP: 4

Explored 1 nodes (82045 simplex iterations) in 50.17 seconds (50.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 8 6 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.800000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo7300.41.sol'

