
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:49:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11449.36.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/grafo11449.36.lp
Reading time = 0.11 seconds
: 68271 rows, 1596 columns, 205986 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 68271 rows, 1596 columns and 205986 nonzeros
Model fingerprint: 0x9e55a108
Variable types: 36 continuous, 1560 integer (1560 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 22751 rows and 31 columns
Presolve time: 0.51s
Presolved: 45520 rows, 1565 columns, 138124 nonzeros
Variable types: 0 continuous, 1565 integer (1529 binary)
Root relaxation presolved: 1565 rows, 47085 columns, 139689 nonzeros


Root relaxation: objective 3.100000e+01, 1415 iterations, 0.29 seconds (0.28 work units)

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

     0     0   31.00000    0  345          -   31.00000      -     -    4s
H    0     0                      11.0000000   31.00000   182%     -    5s
H    0     0                      12.0000000   31.00000   158%     -    5s
     0     0   31.00000    0  421   12.00000   31.00000   158%     -    7s
H    0     0                      13.0000000   31.00000   138%     -    8s
     0     0   31.00000    0  380   13.00000   31.00000   138%     -    8s
     0     0   31.00000    0  416   13.00000   31.00000   138%     -   16s
     0     0   31.00000    0  401   13.00000   31.00000   138%     -   16s
     0     0   31.00000    0  411   13.00000   31.00000   138%     -   22s
     0     0   31.00000    0  383   13.00000   31.00000   138%     -   23s
     0     0   31.00000    0  404   13.00000   31.00000   138%     -   29s
     0     0   31.00000    0  379   13.00000   31.00000   138%     -   30s
H    0     0                      14.0000000   31.00000   121%     -   30s
     0     0   31.00000    0  292   14.00000   31.00000   121%     -   41s
     0     0   31.00000    0  252   14.00000   31.00000   121%     -   41s
     0     0   31.00000    0  291   14.00000   31.00000   121%     -   50s

Cutting planes:
  Cover: 37
  Clique: 22
  MIR: 98
  StrongCG: 4
  GUB cover: 2
  Zero half: 41
  RLT: 56
  BQP: 2

Explored 1 nodes (61880 simplex iterations) in 50.05 seconds (49.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 11 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.100000000000e+01, gap 121.4286%

Wrote result file './lp_solutions/grafo11449.36.sol'

