
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:51:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4023.43.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/grafo4023.43.lp
Reading time = 0.62 seconds
: 314995 rows, 3205 columns, 948243 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 314995 rows, 3205 columns and 948243 nonzeros
Model fingerprint: 0x361ab3ef
Variable types: 59 continuous, 3146 integer (3146 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 122401 rows and 12 columns
Presolve time: 2.60s
Presolved: 192594 rows, 3193 columns, 581335 nonzeros
Variable types: 0 continuous, 3193 integer (3134 binary)
Root relaxation presolved: 3184 rows, 195778 columns, 584528 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6626    1.8937096e+02   0.000000e+00   1.360909e+06      5s
   26733    1.0762882e+02   0.000000e+00   2.361612e+05     11s
   38829    8.1635200e+01   0.000000e+00   2.974461e+05     15s
   51345    7.0383791e+01   0.000000e+00   4.216146e+05     20s
   64502    6.8832139e+01   0.000000e+00   1.310318e+05     25s
   75925    6.8791348e+01   0.000000e+00   1.237420e+05     30s
   87326    6.8768221e+01   0.000000e+00   9.411698e+04     35s
   99486    6.8755906e+01   0.000000e+00   2.577178e+04     40s
  111646    6.8746795e+01   0.000000e+00   2.280601e+04     45s

Root relaxation: time limit, 0 iterations, 46.81 seconds (27.70 work units)

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

H    0     0                       3.0000000  386.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.07 seconds (30.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 3.860000000000e+02, gap 12766.6667%

Wrote result file './lp_solutions/grafo4023.43.sol'

