
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:18:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7139.43.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/grafo7139.43.lp
Reading time = 0.21 seconds
: 120374 rows, 2486 columns, 363243 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 120374 rows, 2486 columns and 363243 nonzeros
Model fingerprint: 0x7ea9d7ca
Variable types: 49 continuous, 2437 integer (2437 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 34211 rows and 18 columns
Presolve time: 0.83s
Presolved: 86163 rows, 2468 columns, 261046 nonzeros
Variable types: 0 continuous, 2468 integer (2419 binary)
Root relaxation presolved: 2465 rows, 88628 columns, 263514 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20945    5.0933367e+01   0.000000e+00   9.226759e+04      5s
   45017    5.0914569e+01   0.000000e+00   1.957645e+03     10s
   66027    5.1000000e+01   0.000000e+00   0.000000e+00     15s
   66027    5.1000000e+01   0.000000e+00   0.000000e+00     15s
   66027    5.1000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.100000e+01, 66027 iterations, 13.55 seconds (11.04 work units)
Total elapsed time = 31.68s (DegenMoves)
Total elapsed time = 35.99s (DegenMoves)

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

     0     0   51.00000    0  664          -   51.00000      -     -   36s
H    0     0                       4.0000000   51.00000  1175%     -   40s
     0     0          -    0         4.00000   51.00000  1175%     -   50s

Cutting planes:
  Gomory: 38
  Cover: 43
  Clique: 27
  MIR: 162
  GUB cover: 4
  Zero half: 82
  RLT: 67
  BQP: 3

Explored 1 nodes (91352 simplex iterations) in 50.01 seconds (49.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 5.100000000000e+01, gap 1175.0000%

Wrote result file './lp_solutions/grafo7139.43.sol'

