
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:50:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5797.47.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/grafo5797.47.lp
Reading time = 0.48 seconds
: 257680 rows, 3311 columns, 776134 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 257680 rows, 3311 columns and 776134 nonzeros
Model fingerprint: 0x8ae0c8bd
Variable types: 58 continuous, 3253 integer (3253 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 90003 rows and 22 columns
Presolve time: 2.23s
Presolved: 167677 rows, 3289 columns, 506632 nonzeros
Variable types: 0 continuous, 3289 integer (3231 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3280 rows, 170957 columns, 509921 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10992    1.2587318e+02   0.000000e+00   1.635476e+05      5s
   26661    7.8913434e+01   0.000000e+00   2.901529e+05     10s
   41762    6.9840527e+01   0.000000e+00   1.214239e+05     15s
   53940    6.7792610e+01   0.000000e+00   1.038173e+05     20s
   67865    6.7765221e+01   0.000000e+00   2.373585e+04     25s
   81788    6.7748344e+01   0.000000e+00   4.337645e+04     30s
   95711    6.7737673e+01   0.000000e+00   8.450180e+03     35s
  109634    6.7731035e+01   0.000000e+00   1.039581e+04     40s
  124220    6.7726989e+01   0.000000e+00   3.498543e+03     45s

Root relaxation: time limit, 137549 iterations, 47.31 seconds (32.34 work units)

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

     0     0          -    0         7.00000  371.00000  5200%     -   50s

Explored 1 nodes (137549 simplex iterations) in 50.02 seconds (34.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.710000000000e+02, gap 5200.0000%

Wrote result file './lp_solutions/grafo5797.47.sol'

