
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:30:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6398.41.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/grafo6398.41.lp
Reading time = 0.11 seconds
: 72700 rows, 2271 columns, 220126 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 72700 rows, 2271 columns and 220126 nonzeros
Model fingerprint: 0x8218d522
Variable types: 48 continuous, 2223 integer (2223 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 9529 rows and 29 columns
Presolve time: 0.51s
Presolved: 63171 rows, 2242 columns, 191984 nonzeros
Variable types: 0 continuous, 2242 integer (2194 binary)
Root relaxation presolved: 2242 rows, 65413 columns, 194226 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25964    3.8947664e+01   0.000000e+00   2.460858e+04      5s
   34439    3.9000000e+01   0.000000e+00   0.000000e+00      7s
   34439    3.9000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 3.900000e+01, 34439 iterations, 6.11 seconds (5.16 work units)
Total elapsed time = 15.24s (DegenMoves)

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

     0     0   39.00000    0  565          -   39.00000      -     -   16s
H    0     0                       7.0000000   39.00000   457%     -   16s
H    0     0                       8.0000000   39.00000   387%     -   16s
     0     0   39.00000    0  939    8.00000   39.00000   387%     -   30s
H    0     0                      11.0000000   39.00000   255%     -   31s
     0     0   39.00000    0  927   11.00000   39.00000   255%     -   31s
     0     0   39.00000    0  649   11.00000   39.00000   255%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 11
  Clique: 10
  MIR: 89
  Zero half: 103
  RLT: 56
  BQP: 3

Explored 1 nodes (68839 simplex iterations) in 50.08 seconds (42.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.900000000000e+01, gap 254.5455%

Wrote result file './lp_solutions/grafo6398.41.sol'

