
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:01:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6866.44.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/grafo6866.44.lp
Reading time = 0.38 seconds
: 239592 rows, 3000 columns, 721605 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 239592 rows, 3000 columns and 721605 nonzeros
Model fingerprint: 0x85653fc4
Variable types: 55 continuous, 2945 integer (2945 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, 6e+01]
Presolve removed 93382 rows and 31 columns
Presolve time: 1.54s
Presolved: 146210 rows, 2969 columns, 441857 nonzeros
Variable types: 0 continuous, 2969 integer (2914 binary)
Root relaxation presolved: 2951 rows, 149161 columns, 444826 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17026    9.1326833e+01   0.000000e+00   8.248241e+05      6s
   34359    6.6890432e+01   0.000000e+00   2.463212e+05     10s
   52968    6.4774753e+01   0.000000e+00   3.378576e+04     15s
   71912    6.4743782e+01   0.000000e+00   1.820306e+04     20s
   90264    6.4733397e+01   0.000000e+00   6.403409e+03     25s
  108616    6.4731319e+01   0.000000e+00   2.284509e-01     30s
  109139    6.5000000e+01   0.000000e+00   0.000000e+00     30s
  109139    6.5000000e+01   0.000000e+00   0.000000e+00     30s
  109139    6.5000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 6.500000e+01, 109139 iterations, 28.52 seconds (23.03 work units)

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

     0     0   65.00000    0 1697          -   65.00000      -     -   50s
H    0     0                       6.0000000   65.00000   983%     -   50s

Explored 1 nodes (119836 simplex iterations) in 50.08 seconds (44.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.500000000000e+01, gap 983.3333%

Wrote result file './lp_solutions/grafo6866.44.sol'

