
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:49:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5750.44.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/grafo5750.44.lp
Reading time = 0.92 seconds
: 475332 rows, 3259 columns, 1429187 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 475332 rows, 3259 columns and 1429187 nonzeros
Model fingerprint: 0x848a69bb
Variable types: 58 continuous, 3201 integer (3201 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 2.0000000
Presolve removed 207768 rows and 10 columns
Presolve time: 4.70s
Presolved: 267564 rows, 3249 columns, 806403 nonzeros
Variable types: 0 continuous, 3249 integer (3191 binary)
Found heuristic solution: objective 16.0000000
Root relaxation presolved: 3232 rows, 270796 columns, 809652 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    9.9164000e+02   0.000000e+00   1.374212e+06      6s
   18708    1.2726527e+02   0.000000e+00   1.625672e+07     11s
   31895    9.2853875e+01   0.000000e+00   2.022735e+05     16s
   42685    7.8951882e+01   0.000000e+00   3.366058e+05     20s
   54951    7.3872080e+01   0.000000e+00   4.436109e+05     25s
   67742    6.7818869e+01   0.000000e+00   1.526065e+05     30s
   79504    6.7782947e+01   0.000000e+00   1.544956e+05     35s
   91225    6.7764245e+01   0.000000e+00   3.249772e+04     40s
  103993    6.7751462e+01   0.000000e+00   6.993012e+04     45s

Root relaxation: time limit, 116284 iterations, 44.75 seconds (26.62 work units)

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

     0     0          -    0        16.00000  445.00000  2681%     -   50s

Explored 1 nodes (116284 simplex iterations) in 50.06 seconds (30.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 2 

Time limit reached
Best objective 1.600000000000e+01, best bound 4.450000000000e+02, gap 2681.2500%

Wrote result file './lp_solutions/grafo5750.44.sol'

