
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:23:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7404.43.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/grafo7404.43.lp
Reading time = 0.32 seconds
: 163420 rows, 2502 columns, 492413 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 163420 rows, 2502 columns and 492413 nonzeros
Model fingerprint: 0xe3277cc0
Variable types: 49 continuous, 2453 integer (2453 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 2.0000000
Presolve removed 55842 rows and 19 columns
Presolve time: 1.12s
Presolved: 107578 rows, 2483 columns, 325282 nonzeros
Variable types: 0 continuous, 2483 integer (2434 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2474 rows, 110052 columns, 327765 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18823    5.0778762e+01   0.000000e+00   3.796444e+05      5s
   42649    5.0712402e+01   0.000000e+00   4.659107e+03     10s
   60730    5.1000000e+01   0.000000e+00   0.000000e+00     14s
   60730    5.1000000e+01   0.000000e+00   0.000000e+00     14s
   60730    5.1000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 5.100000e+01, 60730 iterations, 12.96 seconds (10.38 work units)
Total elapsed time = 29.56s (DegenMoves)
Total elapsed time = 31.50s (DegenMoves)

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

     0     0   51.00000    0  501   10.00000   51.00000   410%     -   33s
     0     0          -    0        10.00000   51.00000   410%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 57
  Clique: 28
  MIR: 205
  StrongCG: 1
  GUB cover: 9
  Zero half: 29
  RLT: 74
  BQP: 6

Explored 1 nodes (82909 simplex iterations) in 50.02 seconds (51.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.100000000000e+01, gap 410.0000%

Wrote result file './lp_solutions/grafo7404.43.sol'

