
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:34:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9998.38.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/grafo9998.38.lp
Reading time = 0.12 seconds
: 74758 rows, 1875 columns, 225778 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 74758 rows, 1875 columns and 225778 nonzeros
Model fingerprint: 0xf01c1d58
Variable types: 42 continuous, 1833 integer (1833 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 21706 rows and 27 columns
Presolve time: 0.52s
Presolved: 53052 rows, 1848 columns, 161085 nonzeros
Variable types: 0 continuous, 1848 integer (1806 binary)
Root relaxation presolved: 1845 rows, 54897 columns, 162933 nonzeros


Root relaxation: objective 3.800000e+01, 1795 iterations, 0.38 seconds (0.36 work units)
Total elapsed time = 5.08s (DegenMoves)

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

     0     0   38.00000    0  459          -   38.00000      -     -    5s
H    0     0                       8.0000000   38.00000   375%     -    5s
H    0     0                       9.0000000   38.00000   322%     -    5s
     0     0   38.00000    0  699    9.00000   38.00000   322%     -   13s
     0     0   38.00000    0  684    9.00000   38.00000   322%     -   14s
H    0     0                      12.0000000   38.00000   217%     -   37s
H    0     0                      13.0000000   38.00000   192%     -   37s
     0     0   38.00000    0  609   13.00000   38.00000   192%     -   38s
     0     0   38.00000    0  594   13.00000   38.00000   192%     -   39s
     0     0          -    0        13.00000   38.00000   192%     -   50s

Cutting planes:
  Cover: 33
  Clique: 8
  MIR: 100
  GUB cover: 4
  Zero half: 55
  RLT: 64
  BQP: 3
  PSD: 1

Explored 1 nodes (42246 simplex iterations) in 50.07 seconds (45.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 9 8 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.800000000000e+01, gap 192.3077%

Wrote result file './lp_solutions/grafo9998.38.sol'

