
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:37:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6251.49.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/grafo6251.49.lp
Reading time = 0.41 seconds
: 244973 rows, 3633 columns, 738454 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 244973 rows, 3633 columns and 738454 nonzeros
Model fingerprint: 0xf052fe80
Variable types: 62 continuous, 3571 integer (3571 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]
Found heuristic solution: objective 4.0000000
Presolve removed 73664 rows and 14 columns
Presolve time: 1.79s
Presolved: 171309 rows, 3619 columns, 517830 nonzeros
Variable types: 0 continuous, 3619 integer (3557 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3611 rows, 174920 columns, 521449 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11461    1.2497314e+02   0.000000e+00   3.833983e+05      5s
   25554    7.6947165e+01   0.000000e+00   4.707821e+05     10s
   38337    7.6856717e+01   0.000000e+00   2.898209e+05     15s
   50407    7.6791382e+01   0.000000e+00   1.454186e+05     20s
   61978    7.6740125e+01   0.000000e+00   8.989016e+04     25s
   74138    7.6715230e+01   0.000000e+00   2.466475e+05     30s
   86298    7.6701216e+01   0.000000e+00   1.638130e+04     35s
   98458    7.6693166e+01   0.000000e+00   5.726259e+03     40s
  110618    7.6687677e+01   0.000000e+00   3.353723e+04     45s

Root relaxation: time limit, 122329 iterations, 47.92 seconds (32.54 work units)

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

     0     0          -    0        12.00000  352.00000  2833%     -   50s

Explored 1 nodes (122329 simplex iterations) in 50.03 seconds (34.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 4 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.520000000000e+02, gap 2833.3333%

Wrote result file './lp_solutions/grafo6251.49.sol'

