
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:47:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3872.35.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/grafo3872.35.lp
Reading time = 0.11 seconds
: 71518 rows, 1555 columns, 215708 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 71518 rows, 1555 columns and 215708 nonzeros
Model fingerprint: 0x81157948
Variable types: 37 continuous, 1518 integer (1518 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 26289 rows and 16 columns
Presolve time: 0.48s
Presolved: 45229 rows, 1539 columns, 137206 nonzeros
Variable types: 0 continuous, 1539 integer (1502 binary)
Root relaxation presolved: 1536 rows, 46765 columns, 138745 nonzeros


Root relaxation: objective 3.600000e+01, 1386 iterations, 0.31 seconds (0.32 work units)

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

     0     0   36.00000    0  286          -   36.00000      -     -    3s
H    0     0                      10.0000000   36.00000   260%     -    3s
     0     0   36.00000    0  554   10.00000   36.00000   260%     -    6s
H    0     0                      11.0000000   36.00000   227%     -    6s
     0     0   36.00000    0  544   11.00000   36.00000   227%     -    6s
     0     0   36.00000    0  333   11.00000   36.00000   227%     -   16s
     0     0   36.00000    0  340   11.00000   36.00000   227%     -   17s
H    0     0                      12.0000000   36.00000   200%     -   30s
H    0     0                      14.0000000   36.00000   157%     -   30s
     0     0   36.00000    0  385   14.00000   36.00000   157%     -   30s
     0     0   36.00000    0  340   14.00000   36.00000   157%     -   30s
     0     0   36.00000    0  428   14.00000   36.00000   157%     -   38s
     0     0   36.00000    0  422   14.00000   36.00000   157%     -   38s
H    0     0                      15.0000000   36.00000   140%     -   44s
     0     0   36.00000    0  398   15.00000   36.00000   140%     -   44s
     0     0   36.00000    0  383   15.00000   36.00000   140%     -   45s
     0     0   36.00000    0  281   15.00000   36.00000   140%     -   50s

Cutting planes:
  Cover: 28
  Clique: 10
  MIR: 85
  Zero half: 15
  RLT: 64
  BQP: 1

Explored 1 nodes (60435 simplex iterations) in 50.05 seconds (49.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 12 ... 10

Time limit reached
Best objective 1.500000000000e+01, best bound 3.600000000000e+01, gap 140.0000%

Wrote result file './lp_solutions/grafo3872.35.sol'

