
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:52:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6615.46.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/grafo6615.46.lp
Reading time = 0.67 seconds
: 318076 rows, 3240 columns, 957303 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 318076 rows, 3240 columns and 957303 nonzeros
Model fingerprint: 0xb3d7c78e
Variable types: 57 continuous, 3183 integer (3183 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 123767 rows and 8 columns
Presolve time: 2.68s
Presolved: 194309 rows, 3232 columns, 586528 nonzeros
Variable types: 0 continuous, 3232 integer (3175 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3219 rows, 197528 columns, 589760 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5691    1.7389720e+02   0.000000e+00   1.628486e+06      5s
   23006    1.0260033e+02   0.000000e+00   4.482114e+05     11s
   34849    7.2958108e+01   0.000000e+00   3.060142e+05     15s
   47522    6.4877906e+01   0.000000e+00   1.125790e+06     20s
   61045    6.4822558e+01   0.000000e+00   7.735635e+04     25s
   73221    6.4791803e+01   0.000000e+00   8.181924e+04     30s
   85382    6.4776666e+01   0.000000e+00   2.369026e+04     35s
   97542    6.4765254e+01   0.000000e+00   7.484338e+03     40s
  109702    6.4758039e+01   0.000000e+00   8.744456e+03     45s

Root relaxation: time limit, 121300 iterations, 46.73 seconds (27.95 work units)

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

     0     0          -    0         7.00000  406.00000  5700%     -   50s

Explored 1 nodes (121300 simplex iterations) in 50.04 seconds (30.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.060000000000e+02, gap 5700.0000%

Wrote result file './lp_solutions/grafo6615.46.sol'

