
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:01:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6746.38.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/grafo6746.38.lp
Reading time = 0.22 seconds
: 137521 rows, 1906 columns, 414070 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 137521 rows, 1906 columns and 414070 nonzeros
Model fingerprint: 0x99ffedea
Variable types: 41 continuous, 1865 integer (1865 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 53641 rows and 28 columns
Presolve time: 1.01s
Presolved: 83880 rows, 1878 columns, 253483 nonzeros
Variable types: 0 continuous, 1878 integer (1837 binary)
Root relaxation presolved: 1877 rows, 85757 columns, 255361 nonzeros


Root relaxation: objective 4.000000e+01, 2468 iterations, 0.83 seconds (0.94 work units)
Total elapsed time = 6.06s (DegenMoves)

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

     0     0   40.00000    0  333          -   40.00000      -     -    7s
H    0     0                       4.0000000   40.00000   900%     -    8s
     0     0   40.00000    0  490    4.00000   40.00000   900%     -   11s
     0     0   40.00000    0  475    4.00000   40.00000   900%     -   12s
     0     0   40.00000    0  569    4.00000   40.00000   900%     -   28s
H    0     0                       5.0000000   40.00000   700%     -   29s
H    0     0                       7.0000000   40.00000   471%     -   29s
     0     0   40.00000    0  560    7.00000   40.00000   471%     -   29s
     0     0   40.00000    0  364    7.00000   40.00000   471%     -   45s
     0     0   40.00000    0  378    7.00000   40.00000   471%     -   46s
     0     0          -    0         7.00000   40.00000   471%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 30
  Clique: 8
  MIR: 126
  StrongCG: 3
  GUB cover: 1
  Zero half: 58
  RLT: 57
  BQP: 1

Explored 1 nodes (39071 simplex iterations) in 50.03 seconds (54.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 5 4 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.000000000000e+01, gap 471.4286%

Wrote result file './lp_solutions/grafo6746.38.sol'

