
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:30:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6892.39.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/grafo6892.39.lp
Reading time = 0.35 seconds
: 217875 rows, 2489 columns, 655967 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 217875 rows, 2489 columns and 655967 nonzeros
Model fingerprint: 0xe94cc4d4
Variable types: 50 continuous, 2439 integer (2439 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 87717 rows and 3 columns
Presolve time: 1.34s
Presolved: 130158 rows, 2486 columns, 393144 nonzeros
Variable types: 0 continuous, 2486 integer (2436 binary)
Root relaxation presolved: 2478 rows, 132636 columns, 395630 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18577    8.0653089e+01   0.000000e+00   6.454300e+05      5s
   39614    6.3745895e+01   0.000000e+00   1.149518e+05     10s
   63325    6.3707724e+01   0.000000e+00   9.404800e+04     15s
   86481    6.3696421e+01   0.000000e+00   2.454718e+03     20s
  110180    6.3692967e+01   0.000000e+00   2.907404e+01     25s
  113693    6.4000000e+01   0.000000e+00   0.000000e+00     26s
  113693    6.4000000e+01   0.000000e+00   0.000000e+00     26s
  113693    6.4000000e+01   0.000000e+00   0.000000e+00     26s

Root relaxation: objective 6.400000e+01, 113693 iterations, 24.27 seconds (17.98 work units)
Total elapsed time = 46.12s (DegenMoves)

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

     0     0   64.00000    0  705          -   64.00000      -     -   50s
H    0     0                       4.0000000   64.00000  1500%     -   50s

Explored 1 nodes (128191 simplex iterations) in 50.06 seconds (48.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 6.400000000000e+01, gap 1500.0000%

Wrote result file './lp_solutions/grafo6892.39.sol'

