
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:14:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9933.39.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/grafo9933.39.lp
Reading time = 0.08 seconds
: 46966 rows, 1762 columns, 142162 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 46966 rows, 1762 columns and 142162 nonzeros
Model fingerprint: 0xbe10363b
Variable types: 37 continuous, 1725 integer (1725 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 10550 rows and 88 columns
Presolve time: 0.30s
Presolved: 36416 rows, 1674 columns, 110771 nonzeros
Variable types: 0 continuous, 1674 integer (1637 binary)
Root relaxation presolved: 19507 rows, 18583 columns, 76953 nonzeros


Root relaxation: objective 3.600000e+01, 2131 iterations, 0.65 seconds (0.57 work units)

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

     0     0   36.00000    0  392          -   36.00000      -     -    2s
H    0     0                       9.0000000   36.00000   300%     -    3s
     0     0   36.00000    0  405    9.00000   36.00000   300%     -    4s
H    0     0                      16.0000000   36.00000   125%     -    4s
H    0     0                      17.0000000   36.00000   112%     -    4s
     0     0   36.00000    0  367   17.00000   36.00000   112%     -    4s
     0     0   36.00000    0  439   17.00000   36.00000   112%     -   15s
     0     0   36.00000    0  459   17.00000   36.00000   112%     -   16s
     0     0   36.00000    0  430   17.00000   36.00000   112%     -   23s
     0     0   36.00000    0  459   17.00000   36.00000   112%     -   24s
     0     0   36.00000    0  475   17.00000   36.00000   112%     -   31s
H    0     0                      18.0000000   36.00000   100%     -   31s
     0     0   36.00000    0  465   18.00000   36.00000   100%     -   31s
     0     0   36.00000    0  444   18.00000   36.00000   100%     -   35s
     0     0   36.00000    0  445   18.00000   36.00000   100%     -   36s
     0     0   36.00000    0  492   18.00000   36.00000   100%     -   41s
     0     0   36.00000    0  385   18.00000   36.00000   100%     -   43s
     0     2   36.00000    0  385   18.00000   36.00000   100%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 3
  Cover: 2
  Clique: 7
  MIR: 84
  Inf proof: 1
  Zero half: 9
  RLT: 42
  BQP: 2
  PSD: 1

Explored 1 nodes (70685 simplex iterations) in 50.03 seconds (46.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 18 17 16 9 

Time limit reached
Best objective 1.800000000000e+01, best bound 3.600000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo9933.39.sol'

