
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:53:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2864.39.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/grafo2864.39.lp
Reading time = 0.30 seconds
: 180746 rows, 2628 columns, 544753 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 180746 rows, 2628 columns and 544753 nonzeros
Model fingerprint: 0x6c8c3320
Variable types: 53 continuous, 2575 integer (2575 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]
Found heuristic solution: objective 2.0000000
Presolve removed 64819 rows and 13 columns
Presolve time: 1.15s
Presolved: 115927 rows, 2615 columns, 350715 nonzeros
Variable types: 0 continuous, 2615 integer (2562 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2607 rows, 118534 columns, 353330 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20101    7.8984233e+01   0.000000e+00   1.486419e+05      5s
   42189    6.4957002e+01   0.000000e+00   3.266493e+04     10s
   62541    6.4946513e+01   0.000000e+00   1.037600e+05     15s
   83096    6.4940560e+01   0.000000e+00   3.794313e+03     20s
  104261    6.4937360e+01   0.000000e+00   6.546619e+03     25s
  124652    6.4935972e+01   0.000000e+00   7.508226e+02     30s
  131768    6.5000000e+01   0.000000e+00   0.000000e+00     32s
  131768    6.5000000e+01   0.000000e+00   0.000000e+00     32s
  131768    6.5000000e+01   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 6.500000e+01, 131768 iterations, 30.61 seconds (27.22 work units)

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

     0     0   65.00000    0 1859   13.00000   65.00000   400%     -   50s

Explored 1 nodes (141355 simplex iterations) in 50.04 seconds (46.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 2 

Time limit reached
Best objective 1.300000000000e+01, best bound 6.500000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo2864.39.sol'

