
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:08:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3303.46.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/grafo3303.46.lp
Reading time = 0.26 seconds
: 160641 rows, 3139 columns, 484873 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 160641 rows, 3139 columns and 484873 nonzeros
Model fingerprint: 0x2c51207f
Variable types: 58 continuous, 3081 integer (3081 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 38767 rows and 0 columns
Presolve time: 0.95s
Presolved: 121874 rows, 3139 columns, 369052 nonzeros
Variable types: 0 continuous, 3139 integer (3081 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3097 rows, 124971 columns, 372191 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19855    6.3012372e+01   0.000000e+00   2.643751e+05      5s
   36174    5.9974716e+01   0.000000e+00   1.146271e+05     10s
   52998    5.9960297e+01   0.000000e+00   1.760121e+05     15s
   68806    5.9952821e+01   0.000000e+00   2.195064e+04     20s
   85108    5.9948244e+01   0.000000e+00   1.042815e+04     25s
  100916    5.9945946e+01   0.000000e+00   2.249342e+03     30s
  117218    5.9945013e+01   0.000000e+00   2.087179e+02     35s
  123677    6.0000000e+01   0.000000e+00   0.000000e+00     37s
  123677    6.0000000e+01   0.000000e+00   0.000000e+00     37s
  123677    6.0000000e+01   0.000000e+00   0.000000e+00     37s

Root relaxation: objective 6.000000e+01, 123677 iterations, 35.99 seconds (29.95 work units)

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

     0     0   60.00000    0 1971    7.00000   60.00000   757%     -   50s

Explored 1 nodes (129662 simplex iterations) in 50.04 seconds (44.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.000000000000e+01, gap 757.1429%

Wrote result file './lp_solutions/grafo3303.46.sol'

