
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:30:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9968.38.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/grafo9968.38.lp
Reading time = 0.08 seconds
: 47384 rows, 1602 columns, 143230 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 47384 rows, 1602 columns and 143230 nonzeros
Model fingerprint: 0x4b0f831e
Variable types: 36 continuous, 1566 integer (1566 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 9311 rows and 32 columns
Presolve time: 0.33s
Presolved: 38073 rows, 1570 columns, 115669 nonzeros
Variable types: 0 continuous, 1570 integer (1534 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 22497 rows, 17146 columns, 84517 nonzeros


Root relaxation: objective 3.000000e+01, 1771 iterations, 0.54 seconds (0.54 work units)

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

     0     0   30.00000    0  318   10.00000   30.00000   200%     -    1s
H    0     0                      11.0000000   30.00000   173%     -    2s
     0     0   30.00000    0  463   11.00000   30.00000   173%     -    4s
     0     0   30.00000    0  464   11.00000   30.00000   173%     -    4s
H    0     0                      12.0000000   30.00000   150%     -   17s
H    0     0                      13.0000000   30.00000   131%     -   17s
     0     0   30.00000    0  321   13.00000   30.00000   131%     -   17s
     0     0   30.00000    0  331   13.00000   30.00000   131%     -   17s
H    0     0                      15.0000000   30.00000   100%     -   30s
     0     0   30.00000    0  461   15.00000   30.00000   100%     -   30s
     0     0   30.00000    0  450   15.00000   30.00000   100%     -   30s
     0     0   30.00000    0  369   15.00000   30.00000   100%     -   36s
     0     0   30.00000    0  347   15.00000   30.00000   100%     -   37s
     0     0   30.00000    0  348   15.00000   30.00000   100%     -   41s
     0     0   30.00000    0  337   15.00000   30.00000   100%     -   41s
     0     0   30.00000    0  347   15.00000   30.00000   100%     -   46s
     0     0   30.00000    0  346   15.00000   30.00000   100%     -   47s

Cutting planes:
  Cover: 1
  Clique: 8
  MIR: 13
  StrongCG: 2
  Zero half: 3
  RLT: 17

Explored 1 nodes (75341 simplex iterations) in 50.03 seconds (50.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 13 12 ... 4

Time limit reached
Best objective 1.500000000000e+01, best bound 3.000000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo9968.38.sol'

