
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:59:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2974.36.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/grafo2974.36.lp
Reading time = 0.11 seconds
: 65840 rows, 1573 columns, 198697 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 65840 rows, 1573 columns and 198697 nonzeros
Model fingerprint: 0x201e1887
Variable types: 37 continuous, 1536 integer (1536 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 22286 rows and 20 columns
Presolve time: 0.48s
Presolved: 43554 rows, 1553 columns, 132210 nonzeros
Variable types: 0 continuous, 1553 integer (1516 binary)
Root relaxation presolved: 28644 rows, 16463 columns, 102390 nonzeros


Root relaxation: objective 2.900000e+01, 2057 iterations, 0.90 seconds (0.94 work units)

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

     0     0   29.00000    0  345          -   29.00000      -     -    2s
H    0     0                       7.0000000   29.00000   314%     -    2s
H    0     0                       9.0000000   29.00000   222%     -    2s
     0     0   29.00000    0  515    9.00000   29.00000   222%     -    7s
     0     0   29.00000    0  506    9.00000   29.00000   222%     -    7s
H    0     0                      12.0000000   29.00000   142%     -   20s
     0     0   29.00000    0  379   12.00000   29.00000   142%     -   20s
H    0     0                      13.0000000   29.00000   123%     -   20s
     0     0   29.00000    0  301   13.00000   29.00000   123%     -   20s
     0     0   29.00000    0  308   13.00000   29.00000   123%     -   25s
     0     0   29.00000    0  348   13.00000   29.00000   123%     -   26s
H    0     0                      14.0000000   29.00000   107%     -   32s
H    0     0                      15.0000000   29.00000  93.3%     -   32s
     0     0   29.00000    0  233   15.00000   29.00000  93.3%     -   32s
     0     0   29.00000    0  230   15.00000   29.00000  93.3%     -   32s
     0     0   29.00000    0  398   15.00000   29.00000  93.3%     -   40s
     0     0   29.00000    0  378   15.00000   29.00000  93.3%     -   41s
     0     0   29.00000    0  362   15.00000   29.00000  93.3%     -   50s

Cutting planes:
  Cover: 20
  Clique: 16
  MIR: 92
  StrongCG: 1
  Zero half: 15
  RLT: 50
  BQP: 2

Explored 1 nodes (61319 simplex iterations) in 50.07 seconds (46.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 7

Time limit reached
Best objective 1.500000000000e+01, best bound 2.900000000000e+01, gap 93.3333%

Wrote result file './lp_solutions/grafo2974.36.sol'

