
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:41:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6417.39.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/grafo6417.39.lp
Reading time = 0.12 seconds
: 73548 rows, 2022 columns, 222333 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 73548 rows, 2022 columns and 222333 nonzeros
Model fingerprint: 0x46a9233d
Variable types: 45 continuous, 1977 integer (1977 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]
Found heuristic solution: objective 4.0000000
Presolve removed 15499 rows and 30 columns
Presolve time: 0.50s
Presolved: 58049 rows, 1992 columns, 176217 nonzeros
Variable types: 0 continuous, 1992 integer (1947 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1989 rows, 60038 columns, 178209 nonzeros


Root relaxation: objective 3.900000e+01, 1736 iterations, 0.36 seconds (0.34 work units)

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

     0     0   39.00000    0  432    8.00000   39.00000   387%     -    4s
H    0     0                      10.0000000   39.00000   290%     -    4s
H    0     0                      12.0000000   39.00000   225%     -    5s
H    0     0                      13.0000000   39.00000   200%     -   18s
     0     0   39.00000    0  868   13.00000   39.00000   200%     -   19s
     0     0   39.00000    0  781   13.00000   39.00000   200%     -   21s
     0     0   39.00000    0  814   13.00000   39.00000   200%     -   46s
     0     0   39.00000    0  799   13.00000   39.00000   200%     -   47s
     0     0          -    0        13.00000   39.00000   200%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 1
  Clique: 4
  MIR: 98
  Zero half: 49
  RLT: 46

Explored 1 nodes (37779 simplex iterations) in 50.09 seconds (40.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 10 ... 4

Time limit reached
Best objective 1.300000000000e+01, best bound 3.900000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo6417.39.sol'

