
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:54:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6632.46.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/grafo6632.46.lp
Reading time = 0.41 seconds
: 221166 rows, 2965 columns, 666161 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 221166 rows, 2965 columns and 666161 nonzeros
Model fingerprint: 0xe9e56547
Variable types: 54 continuous, 2911 integer (2911 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 4.0000000
Presolve removed 79289 rows and 23 columns
Presolve time: 1.90s
Presolved: 141877 rows, 2942 columns, 428692 nonzeros
Variable types: 0 continuous, 2942 integer (2888 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2939 rows, 144816 columns, 431634 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11370    9.8740184e+01   0.000000e+00   1.021350e+06      5s
   27101    6.3739831e+01   0.000000e+00   1.242937e+05     10s
   41310    5.9689649e+01   0.000000e+00   1.043384e+05     15s
   55518    5.9668264e+01   0.000000e+00   1.546256e+04     20s
   68542    5.9660718e+01   0.000000e+00   1.821994e+03     25s
   81577    5.9657916e+01   0.000000e+00   2.405430e+03     30s
   92773    6.0000000e+01   0.000000e+00   0.000000e+00     34s
   92773    6.0000000e+01   0.000000e+00   0.000000e+00     34s
   92773    6.0000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 6.000000e+01, 92773 iterations, 32.15 seconds (18.70 work units)

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

     0     0   60.00000    0 1615   12.00000   60.00000   400%     -   50s

Explored 1 nodes (98603 simplex iterations) in 50.06 seconds (33.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 4 

Time limit reached
Best objective 1.200000000000e+01, best bound 6.000000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo6632.46.sol'

