
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:21:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7379.43.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/grafo7379.43.lp
Reading time = 0.40 seconds
: 200745 rows, 2707 columns, 604684 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 200745 rows, 2707 columns and 604684 nonzeros
Model fingerprint: 0xdfd7598e
Variable types: 52 continuous, 2655 integer (2655 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 71858 rows and 24 columns
Presolve time: 1.84s
Presolved: 128887 rows, 2683 columns, 389497 nonzeros
Variable types: 0 continuous, 2683 integer (2631 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2683 rows, 131570 columns, 392180 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13748    7.0000641e+01   0.000000e+00   4.971607e+06      5s
   30398    5.8859303e+01   0.000000e+00   5.810917e+05     10s
   46724    5.8747220e+01   0.000000e+00   4.236341e+04     15s
   62404    5.8723469e+01   0.000000e+00   8.053106e+04     20s
   76964    5.8715412e+01   0.000000e+00   5.042420e+03     25s
   91267    5.9000000e+01   0.000000e+00   0.000000e+00     30s
   91267    5.9000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.900000e+01, 91267 iterations, 27.79 seconds (16.36 work units)
Total elapsed time = 48.53s (DegenMoves)

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

     0     0   59.00000    0  551    7.00000   59.00000   743%     -   50s

Explored 1 nodes (101753 simplex iterations) in 50.07 seconds (36.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.900000000000e+01, gap 742.8571%

Wrote result file './lp_solutions/grafo7379.43.sol'

