
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:21:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6781.47.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/grafo6781.47.lp
Reading time = 0.37 seconds
: 198772 rows, 3711 columns, 600093 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 198772 rows, 3711 columns and 600093 nonzeros
Model fingerprint: 0xdc7d7290
Variable types: 64 continuous, 3647 integer (3647 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 3.0000000
Presolve removed 48336 rows and 2 columns
Presolve time: 1.57s
Presolved: 150436 rows, 3709 columns, 455842 nonzeros
Variable types: 0 continuous, 3709 integer (3645 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3676 rows, 154112 columns, 459551 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11075    9.6490082e+01   0.000000e+00   1.279745e+06      5s
   22199    7.4223462e+01   0.000000e+00   2.104273e+05     10s
   33001    7.0493764e+01   0.000000e+00   1.251734e+06     15s
   42849    7.0458434e+01   0.000000e+00   2.366034e+05     20s
   52563    7.0432745e+01   0.000000e+00   2.607305e+05     25s
   61916    7.0414776e+01   0.000000e+00   5.885812e+04     30s
   71724    7.0402319e+01   0.000000e+00   2.381287e+04     35s
   80927    7.0392867e+01   0.000000e+00   9.476949e+04     40s
   90845    7.0385852e+01   0.000000e+00   2.007040e+04     45s

Root relaxation: time limit, 99468 iterations, 48.17 seconds (29.11 work units)

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

     0     0          -    0         9.00000  390.00000  4233%     -   50s

Explored 1 nodes (99468 simplex iterations) in 50.03 seconds (30.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.900000000000e+02, gap 4233.3333%

Wrote result file './lp_solutions/grafo6781.47.sol'

