
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:11:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1590.45.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/grafo1590.45.lp
Reading time = 0.19 seconds
: 89717 rows, 2032 columns, 270449 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 89717 rows, 2032 columns and 270449 nonzeros
Model fingerprint: 0x38d35d83
Variable types: 36 continuous, 1996 integer (1996 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 31813 rows and 72 columns
Presolve time: 0.67s
Presolved: 57904 rows, 1960 columns, 175316 nonzeros
Variable types: 0 continuous, 1960 integer (1924 binary)
Root relaxation presolved: 1958 rows, 59862 columns, 177276 nonzeros


Root relaxation: objective 3.600000e+01, 1358 iterations, 0.46 seconds (0.31 work units)

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

     0     0   36.00000    0  360          -   36.00000      -     -    3s
H    0     0                      13.0000000   36.00000   177%     -    4s
     0     0   36.00000    0  420   13.00000   36.00000   177%     -    8s
H    0     0                      14.0000000   36.00000   157%     -    8s
H    0     0                      16.0000000   36.00000   125%     -    8s
     0     0   36.00000    0  411   16.00000   36.00000   125%     -    9s
     0     0   36.00000    0  389   16.00000   36.00000   125%     -   19s
     0     0   36.00000    0  315   16.00000   36.00000   125%     -   20s
     0     0   36.00000    0  346   16.00000   36.00000   125%     -   28s
     0     0   36.00000    0  334   16.00000   36.00000   125%     -   29s
     0     0   36.00000    0  345   16.00000   36.00000   125%     -   35s
H    0     0                      17.0000000   36.00000   112%     -   35s
     0     0   36.00000    0  416   17.00000   36.00000   112%     -   36s
     0     0   36.00000    0  307   17.00000   36.00000   112%     -   45s
     0     0   36.00000    0  377   17.00000   36.00000   112%     -   46s
     0     0   36.00000    0  455   17.00000   36.00000   112%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 14
  Clique: 17
  MIR: 85
  Inf proof: 2
  Zero half: 41
  RLT: 63
  PSD: 1

Explored 1 nodes (44393 simplex iterations) in 50.09 seconds (34.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 17 16 14 13 

Time limit reached
Best objective 1.700000000000e+01, best bound 3.600000000000e+01, gap 111.7647%

Wrote result file './lp_solutions/grafo1590.45.sol'

