
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 07:50:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6435.36.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/grafo6435.36.lp
Reading time = 0.16 seconds
: 97077 rows, 1979 columns, 292993 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 97077 rows, 1979 columns and 292993 nonzeros
Model fingerprint: 0xa72f60ea
Variable types: 45 continuous, 1934 integer (1934 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 30897 rows and 9 columns
Presolve time: 0.62s
Presolved: 66180 rows, 1970 columns, 200595 nonzeros
Variable types: 0 continuous, 1970 integer (1925 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1964 rows, 68144 columns, 202565 nonzeros


Root relaxation: objective 4.800000e+01, 1730 iterations, 0.44 seconds (0.42 work units)

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

     0     0   48.00000    0  444    5.00000   48.00000   860%     -    3s
H    0     0                      12.0000000   48.00000   300%     -    4s
H    0     0                      14.0000000   48.00000   243%     -    4s
     0     0   48.00000    0  740   14.00000   48.00000   243%     -   12s
     0     0   48.00000    0  685   14.00000   48.00000   243%     -   13s
H    0     0                      15.0000000   48.00000   220%     -   18s
     0     0   48.00000    0  527   15.00000   48.00000   220%     -   39s
     0     0   48.00000    0  570   15.00000   48.00000   220%     -   40s
     0     0          -    0        15.00000   48.00000   220%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 38
  Clique: 27
  MIR: 197
  StrongCG: 2
  GUB cover: 2
  Zero half: 93
  RLT: 78
  BQP: 2
  PSD: 1

Explored 1 nodes (37204 simplex iterations) in 50.06 seconds (47.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 14 12 5 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.800000000000e+01, gap 220.0000%

Wrote result file './lp_solutions/grafo6435.36.sol'

