
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:43:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7244.41.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/grafo7244.41.lp
Reading time = 0.15 seconds
: 93869 rows, 2253 columns, 283484 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 93869 rows, 2253 columns and 283484 nonzeros
Model fingerprint: 0x9248ea8c
Variable types: 47 continuous, 2206 integer (2206 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 22855 rows and 23 columns
Presolve time: 0.73s
Presolved: 71014 rows, 2230 columns, 215350 nonzeros
Variable types: 0 continuous, 2230 integer (2183 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2230 rows, 73244 columns, 217580 nonzeros


Root relaxation: objective 4.500000e+01, 24605 iterations, 3.82 seconds (3.19 work units)
Total elapsed time = 11.00s (DegenMoves)

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

     0     0   45.00000    0  605   10.00000   45.00000   350%     -   26s
H    0     0                      12.0000000   45.00000   275%     -   26s
     0     0   45.00000    0 1080   12.00000   45.00000   275%     -   50s

Cutting planes:
  Gomory: 30
  Cover: 44
  Clique: 23
  MIR: 116
  StrongCG: 1
  GUB cover: 5
  Zero half: 17
  RLT: 50
  BQP: 4

Explored 1 nodes (61517 simplex iterations) in 50.12 seconds (56.64 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.500000000000e+01, gap 275.0000%

Wrote result file './lp_solutions/grafo7244.41.sol'

