
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:14:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9868.37.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/grafo9868.37.lp
Reading time = 0.12 seconds
: 72811 rows, 2130 columns, 220419 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 72811 rows, 2130 columns and 220419 nonzeros
Model fingerprint: 0x37c0a725
Variable types: 45 continuous, 2085 integer (2085 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 23345 rows and 119 columns
Presolve time: 0.41s
Presolved: 49466 rows, 2011 columns, 150737 nonzeros
Variable types: 0 continuous, 2011 integer (1966 binary)
Root relaxation presolved: 27506 rows, 23971 columns, 106817 nonzeros


Root relaxation: objective 4.000000e+01, 2039 iterations, 0.74 seconds (0.65 work units)
Total elapsed time = 5.75s (DegenMoves)

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

     0     0   40.00000    0  396          -   40.00000      -     -    6s
H    0     0                      13.0000000   40.00000   208%     -    6s
     0     0   40.00000    0  579   13.00000   40.00000   208%     -   11s
H    0     0                      15.0000000   40.00000   167%     -   11s
     0     0   40.00000    0  565   15.00000   40.00000   167%     -   11s
     0     0   40.00000    0  358   15.00000   40.00000   167%     -   24s
     0     0   40.00000    0  495   15.00000   40.00000   167%     -   25s
     0     0   40.00000    0  411   15.00000   40.00000   167%     -   36s
     0     0   40.00000    0  368   15.00000   40.00000   167%     -   36s
     0     0   40.00000    0  495   15.00000   40.00000   167%     -   43s
     0     0   40.00000    0  501   15.00000   40.00000   167%     -   44s
     0     0   40.00000    0  549   15.00000   40.00000   167%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 18
  Clique: 9
  MIR: 117
  StrongCG: 2
  Inf proof: 2
  Zero half: 33
  RLT: 59
  BQP: 2

Explored 1 nodes (62941 simplex iterations) in 50.09 seconds (44.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 13 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.000000000000e+01, gap 166.6667%

Wrote result file './lp_solutions/grafo9868.37.sol'

