
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:35:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3331.44.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/grafo3331.44.lp
Reading time = 0.71 seconds
: 370780 rows, 3085 columns, 1115296 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 370780 rows, 3085 columns and 1115296 nonzeros
Model fingerprint: 0x68cace25
Variable types: 56 continuous, 3029 integer (3029 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 156063 rows and 11 columns
Presolve time: 3.16s
Presolved: 214717 rows, 3074 columns, 647499 nonzeros
Variable types: 0 continuous, 3074 integer (3018 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 3057 rows, 217774 columns, 650573 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4929    1.9786162e+02   0.000000e+00   6.592064e+05      5s
   22832    1.0184410e+02   0.000000e+00   7.605568e+05     10s
   38629    7.5964429e+01   0.000000e+00   4.120348e+05     15s
   51430    6.4871790e+01   0.000000e+00   1.229668e+05     20s
   63976    6.2809824e+01   0.000000e+00   1.875598e+05     25s
   77180    6.1773983e+01   0.000000e+00   6.650692e+04     30s
   89416    6.1752771e+01   0.000000e+00   3.338973e+04     35s
  101653    6.1739782e+01   0.000000e+00   4.423069e+04     40s
  113889    6.1731655e+01   0.000000e+00   1.657622e+04     45s

Root relaxation: time limit, 126497 iterations, 46.45 seconds (27.71 work units)

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

     0     0          -    0        10.00000  398.00000  3880%     -   50s

Explored 1 nodes (126497 simplex iterations) in 50.04 seconds (30.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.980000000000e+02, gap 3880.0000%

Wrote result file './lp_solutions/grafo3331.44.sol'

