
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:24:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7476.38.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/grafo7476.38.lp
Reading time = 0.48 seconds
: 302421 rows, 2593 columns, 909791 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 302421 rows, 2593 columns and 909791 nonzeros
Model fingerprint: 0x239f182b
Variable types: 52 continuous, 2541 integer (2541 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 133202 rows and 10 columns
Presolve time: 2.02s
Presolved: 169219 rows, 2583 columns, 510588 nonzeros
Variable types: 0 continuous, 2583 integer (2531 binary)
Root relaxation presolved: 2563 rows, 171782 columns, 513171 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14212    1.1232833e+02   0.000000e+00   5.488940e+05      5s
   37032    5.9936773e+01   0.000000e+00   4.183335e+05     10s
   58330    5.9819311e+01   0.000000e+00   4.306944e+04     15s
   79120    5.9791703e+01   0.000000e+00   5.449115e+03     20s
  100402    6.0000000e+01   0.000000e+00   0.000000e+00     25s
  100402    6.0000000e+01   0.000000e+00   0.000000e+00     25s
  100402    6.0000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 6.000000e+01, 100402 iterations, 22.72 seconds (17.60 work units)

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

     0     0   60.00000    0 1426          -   60.00000      -     -   50s
H    0     0                       3.0000000   60.00000  1900%     -   50s

Explored 1 nodes (109924 simplex iterations) in 50.07 seconds (44.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 6.000000000000e+01, gap 1900.0000%

Wrote result file './lp_solutions/grafo7476.38.sol'

