
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:03:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3814.39.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/grafo3814.39.lp
Reading time = 0.16 seconds
: 98694 rows, 1836 columns, 297446 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 98694 rows, 1836 columns and 297446 nonzeros
Model fingerprint: 0x809748ee
Variable types: 40 continuous, 1796 integer (1796 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 33737 rows and 22 columns
Presolve time: 0.71s
Presolved: 64957 rows, 1814 columns, 196543 nonzeros
Variable types: 0 continuous, 1814 integer (1774 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1814 rows, 66771 columns, 198357 nonzeros


Root relaxation: objective 4.000000e+01, 2169 iterations, 0.55 seconds (0.61 work units)
Total elapsed time = 7.70s (DegenMoves)

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

     0     0   40.00000    0  499    5.00000   40.00000   700%     -    8s
H    0     0                       6.0000000   40.00000   567%     -   10s
     0     0   40.00000    0  912    6.00000   40.00000   567%     -   27s
H    0     0                       7.0000000   40.00000   471%     -   27s
     0     0   40.00000    0  907    7.00000   40.00000   471%     -   27s
     0     0   40.00000    0  397    7.00000   40.00000   471%     -   47s
     0     0   40.00000    0  391    7.00000   40.00000   471%     -   47s
     0     0          -    0         7.00000   40.00000   471%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 38
  Clique: 30
  MIR: 215
  StrongCG: 2
  GUB cover: 6
  Zero half: 35
  RLT: 66
  BQP: 3

Explored 1 nodes (37474 simplex iterations) in 50.10 seconds (45.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 6 5 

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

Wrote result file './lp_solutions/grafo3814.39.sol'

