
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:33:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6361.41.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/grafo6361.41.lp
Reading time = 1.15 seconds
: 458214 rows, 2773 columns, 1377230 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 458214 rows, 2773 columns and 1377230 nonzeros
Model fingerprint: 0xf341a3f3
Variable types: 52 continuous, 2721 integer (2721 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 -0.0000000
Presolve removed 209931 rows and 8 columns
Presolve time: 4.29s
Presolved: 248283 rows, 2765 columns, 747809 nonzeros
Variable types: 0 continuous, 2765 integer (2713 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2752 rows, 251035 columns, 750574 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    8.9486000e+02   0.000000e+00   9.702727e+05      6s
   28170    1.3126869e+02   0.000000e+00   9.507625e+05     11s
   45881    1.0549545e+02   0.000000e+00   2.622234e+05     16s
   59174    7.8926656e+01   0.000000e+00   1.212980e+05     20s
   72314    6.7869244e+01   0.000000e+00   3.419773e+05     25s
   87589    6.3832289e+01   0.000000e+00   1.377753e+05     30s
  103807    6.3804450e+01   0.000000e+00   3.015209e+04     35s
  118946    6.3792227e+01   0.000000e+00   1.066069e+04     40s
  135154    6.3784060e+01   0.000000e+00   5.993375e+03     45s

Root relaxation: time limit, 151130 iterations, 45.24 seconds (26.50 work units)

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

     0     0          -    0         6.00000  432.00000  7100%     -   50s

Explored 1 nodes (151130 simplex iterations) in 50.06 seconds (30.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 -0 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.320000000000e+02, gap 7100.0000%

Wrote result file './lp_solutions/grafo6361.41.sol'

