
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:42:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7355.45.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/grafo7355.45.lp
Reading time = 0.10 seconds
: 60542 rows, 2095 columns, 183068 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 60542 rows, 2095 columns and 183068 nonzeros
Model fingerprint: 0x2e93e8c1
Variable types: 42 continuous, 2053 integer (2053 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 5592 rows and 23 columns
Presolve time: 0.40s
Presolved: 54950 rows, 2072 columns, 166574 nonzeros
Variable types: 0 continuous, 2072 integer (2030 binary)
Root relaxation presolved: 29280 rows, 27742 columns, 115234 nonzeros


Root relaxation: objective 3.800000e+01, 4046 iterations, 1.91 seconds (1.77 work units)
Total elapsed time = 5.19s (DegenMoves)

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

     0     0   38.00000    0  481          -   38.00000      -     -    5s
H    0     0                       6.0000000   38.00000   533%     -    7s
H    0     0                       9.0000000   38.00000   322%     -    7s
     0     0   38.00000    0  721    9.00000   38.00000   322%     -   13s
     0     0   38.00000    0  678    9.00000   38.00000   322%     -   13s
H    0     0                      11.0000000   38.00000   245%     -   41s
H    0     0                      12.0000000   38.00000   217%     -   41s
     0     0   38.00000    0  693   12.00000   38.00000   217%     -   41s
     0     0   38.00000    0  658   12.00000   38.00000   217%     -   43s
     0     0          -    0        12.00000   38.00000   217%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 3
  Cover: 21
  Clique: 2
  MIR: 123
  StrongCG: 1
  GUB cover: 4
  Zero half: 54
  RLT: 52
  PSD: 1

Explored 1 nodes (46779 simplex iterations) in 50.08 seconds (44.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 9 6 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.800000000000e+01, gap 216.6667%

Wrote result file './lp_solutions/grafo7355.45.sol'

