
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:29:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7211.37.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/grafo7211.37.lp
Reading time = 0.11 seconds
: 87674 rows, 1933 columns, 264619 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 87674 rows, 1933 columns and 264619 nonzeros
Model fingerprint: 0xfc610fcc
Variable types: 43 continuous, 1890 integer (1890 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 27139 rows and 19 columns
Presolve time: 0.51s
Presolved: 60535 rows, 1914 columns, 183599 nonzeros
Variable types: 0 continuous, 1914 integer (1871 binary)
Root relaxation presolved: 1914 rows, 62449 columns, 185513 nonzeros


Root relaxation: objective 4.600000e+01, 2454 iterations, 0.43 seconds (0.60 work units)
Total elapsed time = 5.27s (DegenMoves)

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

     0     0   46.00000    0  477          -   46.00000      -     -    5s
H    0     0                       8.0000000   46.00000   475%     -    5s
H    0     0                      10.0000000   46.00000   360%     -    5s
H    0     0                      11.0000000   46.00000   318%     -    6s
H    0     0                      12.0000000   46.00000   283%     -   12s
     0     0   45.00000    0  739   12.00000   45.00000   275%     -   12s
     0     0   45.00000    0  717   12.00000   45.00000   275%     -   14s
H    0     0                      13.0000000   45.00000   246%     -   15s
H    0     0                      14.0000000   45.00000   221%     -   29s
     0     0   45.00000    0  626   14.00000   45.00000   221%     -   29s
H    0     0                      15.0000000   45.00000   200%     -   29s
     0     0   45.00000    0  605   15.00000   45.00000   200%     -   31s
     0     0   45.00000    0  671   15.00000   45.00000   200%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 6
  MIR: 196
  StrongCG: 2
  GUB cover: 2
  Zero half: 64
  RLT: 88
  BQP: 1
  PSD: 1

Explored 1 nodes (50417 simplex iterations) in 50.08 seconds (54.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 8

Time limit reached
Best objective 1.500000000000e+01, best bound 4.500000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo7211.37.sol'

