
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:12:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6843.43.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/grafo6843.43.lp
Reading time = 0.55 seconds
: 287366 rows, 2833 columns, 864702 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 287366 rows, 2833 columns and 864702 nonzeros
Model fingerprint: 0x81a85181
Variable types: 53 continuous, 2780 integer (2780 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, 5e+01]
Found heuristic solution: objective 3.0000000
Presolve removed 117308 rows and 25 columns
Presolve time: 2.58s
Presolved: 170058 rows, 2808 columns, 513215 nonzeros
Variable types: 0 continuous, 2808 integer (2755 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2802 rows, 172860 columns, 516023 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9850    1.3834194e+02   0.000000e+00   2.054769e+05      6s
   28246    8.3277374e+01   0.000000e+00   1.596158e+05     11s
   42171    6.3917570e+01   0.000000e+00   2.193431e+05     15s
   57331    5.9815127e+01   0.000000e+00   1.261274e+05     20s
   72461    5.9769057e+01   0.000000e+00   4.804044e+04     25s
   87583    5.9752682e+01   0.000000e+00   3.715005e+04     30s
  101983    5.9743520e+01   0.000000e+00   4.239007e+03     35s
  117103    5.9739074e+01   0.000000e+00   1.902118e+03     40s
  128839    6.0000000e+01   0.000000e+00   0.000000e+00     44s
  128839    6.0000000e+01   0.000000e+00   0.000000e+00     44s
  128839    6.0000000e+01   0.000000e+00   0.000000e+00     44s

Root relaxation: objective 6.000000e+01, 128839 iterations, 41.12 seconds (24.75 work units)

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

     0     0   60.00000    0 1577   10.00000   60.00000   500%     -   50s

Explored 1 nodes (130270 simplex iterations) in 50.06 seconds (32.80 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.000000000000e+01, gap 500.0000%

Wrote result file './lp_solutions/grafo6843.43.sol'

