
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:10:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7662.38.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/grafo7662.38.lp
Reading time = 0.18 seconds
: 111996 rows, 1972 columns, 337590 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 111996 rows, 1972 columns and 337590 nonzeros
Model fingerprint: 0xf2b20f7e
Variable types: 42 continuous, 1930 integer (1930 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 40497 rows and 16 columns
Presolve time: 0.77s
Presolved: 71499 rows, 1956 columns, 216493 nonzeros
Variable types: 0 continuous, 1956 integer (1914 binary)
Root relaxation presolved: 1956 rows, 73455 columns, 218449 nonzeros


Root relaxation: objective 4.600000e+01, 2111 iterations, 0.57 seconds (0.62 work units)
Total elapsed time = 6.13s (DegenMoves)

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

     0     0   46.00000    0  519          -   46.00000      -     -    7s
H    0     0                      10.0000000   46.00000   360%     -    7s
H    0     0                      11.0000000   46.00000   318%     -    7s
H    0     0                      12.0000000   46.00000   283%     -   24s
     0     0   45.00000    0  939   12.00000   45.00000   275%     -   24s
H    0     0                      13.0000000   45.00000   246%     -   24s
     0     0   45.00000    0  906   13.00000   45.00000   246%     -   25s
     0     0   45.00000    0  855   13.00000   45.00000   246%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 10
  Clique: 24
  MIR: 124
  StrongCG: 2
  Zero half: 123
  RLT: 69
  BQP: 2

Explored 1 nodes (33320 simplex iterations) in 50.06 seconds (45.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 11 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.500000000000e+01, gap 246.1538%

Wrote result file './lp_solutions/grafo7662.38.sol'

