
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:26:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11376.38.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/grafo11376.38.lp
Reading time = 0.10 seconds
: 59147 rows, 2014 columns, 179177 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 59147 rows, 2014 columns and 179177 nonzeros
Model fingerprint: 0x5b398a4f
Variable types: 43 continuous, 1971 integer (1971 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 10775 rows and 32 columns
Presolve time: 0.38s
Presolved: 48372 rows, 1982 columns, 147500 nonzeros
Variable types: 0 continuous, 1982 integer (1939 binary)
Root relaxation presolved: 27595 rows, 22759 columns, 105946 nonzeros


Root relaxation: objective 3.900000e+01, 1693 iterations, 0.48 seconds (0.41 work units)

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

     0     0   39.00000    0  392          -   39.00000      -     -    2s
H    0     0                      11.0000000   39.00000   255%     -    3s
     0     0   39.00000    0  575   11.00000   39.00000   255%     -    5s
H    0     0                      12.0000000   39.00000   225%     -    5s
H    0     0                      13.0000000   39.00000   200%     -    5s
     0     0   39.00000    0  541   13.00000   39.00000   200%     -    5s
H    0     0                      14.0000000   39.00000   179%     -   27s
H    0     0                      16.0000000   39.00000   144%     -   27s
H    0     0                      17.0000000   39.00000   129%     -   27s
H    0     0                      18.0000000   39.00000   117%     -   27s
     0     0   39.00000    0  556   18.00000   39.00000   117%     -   27s
     0     0   39.00000    0  509   18.00000   39.00000   117%     -   27s
     0     0   39.00000    0  421   18.00000   39.00000   117%     -   38s
     0     0   39.00000    0  371   18.00000   39.00000   117%     -   39s
     0     0   39.00000    0  319   18.00000   39.00000   117%     -   44s
     0     0   39.00000    0  383   18.00000   39.00000   117%     -   45s
     0     0   39.00000    0  568   18.00000   39.00000   117%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 2
  Cover: 35
  Clique: 11
  MIR: 118
  StrongCG: 3
  Zero half: 49
  RLT: 57
  BQP: 3

Explored 1 nodes (58119 simplex iterations) in 50.06 seconds (44.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 18 17 16 ... 11

Time limit reached
Best objective 1.800000000000e+01, best bound 3.900000000000e+01, gap 116.6667%

Wrote result file './lp_solutions/grafo11376.38.sol'

