
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:05:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6925.44.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/grafo6925.44.lp
Reading time = 0.83 seconds
: 387461 rows, 3045 columns, 1165299 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 387461 rows, 3045 columns and 1165299 nonzeros
Model fingerprint: 0x3bfc3c3b
Variable types: 55 continuous, 2990 integer (2990 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 165416 rows and 18 columns
Presolve time: 3.53s
Presolved: 222045 rows, 3027 columns, 669376 nonzeros
Variable types: 0 continuous, 3027 integer (2972 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3027 rows, 225072 columns, 672403 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    8.7840000e+02   0.000000e+00   1.256706e+06      5s
   23561    1.0818735e+02   0.000000e+00   3.323657e+05     10s
   38384    7.3959771e+01   0.000000e+00   4.417234e+05     15s
   51869    6.9852206e+01   0.000000e+00   1.935071e+05     20s
   66193    6.4783679e+01   0.000000e+00   8.072939e+04     25s
   80403    6.4749206e+01   0.000000e+00   5.459461e+04     30s
   94611    6.4730891e+01   0.000000e+00   2.426976e+04     35s
  107931    6.4722001e+01   0.000000e+00   1.651110e+04     40s
  122139    6.4716430e+01   0.000000e+00   4.308403e+03     45s

Root relaxation: time limit, 135409 iterations, 45.81 seconds (27.10 work units)

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

     0     0          -    0         8.00000  418.00000  5125%     -   50s

Explored 1 nodes (135409 simplex iterations) in 50.04 seconds (30.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.180000000000e+02, gap 5125.0000%

Wrote result file './lp_solutions/grafo6925.44.sol'

