
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:20:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5830.40.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/grafo5830.40.lp
Reading time = 0.08 seconds
: 49108 rows, 1789 columns, 148622 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 49108 rows, 1789 columns and 148622 nonzeros
Model fingerprint: 0x3e04e09e
Variable types: 39 continuous, 1750 integer (1750 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 7963 rows and 48 columns
Presolve time: 0.31s
Presolved: 41145 rows, 1741 columns, 124992 nonzeros
Variable types: 0 continuous, 1741 integer (1702 binary)
Root relaxation presolved: 22126 rows, 20760 columns, 86954 nonzeros


Root relaxation: objective 3.400000e+01, 3840 iterations, 1.57 seconds (1.42 work units)

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

     0     0   34.00000    0  391          -   34.00000      -     -    4s
H    0     0                      12.0000000   34.00000   183%     -    4s
H    0     0                      14.0000000   34.00000   143%     -    5s
     0     0   34.00000    0  638   14.00000   34.00000   143%     -    8s
     0     0   34.00000    0  607   14.00000   34.00000   143%     -    9s
H    0     0                      15.0000000   33.66667   124%     -   19s
     0     0   33.66667    0  347   15.00000   33.66667   124%     -   19s
     0     0   33.66667    0  355   15.00000   33.66667   124%     -   20s
     0     0   33.00000    0  256   15.00000   33.00000   120%     -   24s
     0     0   33.00000    0  233   15.00000   33.00000   120%     -   24s
     0     0   33.00000    0  357   15.00000   33.00000   120%     -   32s
     0     0   33.00000    0  415   15.00000   33.00000   120%     -   32s
H    0     0                      16.0000000   33.00000   106%     -   37s
     0     0   33.00000    0  456   16.00000   33.00000   106%     -   37s
     0     0   33.00000    0  435   16.00000   33.00000   106%     -   38s
H    0     0                      17.0000000   33.00000  94.1%     -   42s
     0     0   33.00000    0  251   17.00000   33.00000  94.1%     -   42s
     0     0   33.00000    0  338   17.00000   33.00000  94.1%     -   43s
     0     0   33.00000    0  447   17.00000   33.00000  94.1%     -   48s
     0     0   33.00000    0  413   17.00000   33.00000  94.1%     -   49s
     0     0          -    0        17.00000   33.00000  94.1%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 20
  Clique: 2
  MIR: 108
  StrongCG: 3
  GUB cover: 1
  Inf proof: 2
  Zero half: 27
  RLT: 49
  BQP: 2

Explored 1 nodes (81105 simplex iterations) in 50.06 seconds (47.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 16 15 ... 12

Time limit reached
Best objective 1.700000000000e+01, best bound 3.300000000000e+01, gap 94.1176%

Wrote result file './lp_solutions/grafo5830.40.sol'

