
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:41:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7622.45.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/grafo7622.45.lp
Reading time = 0.79 seconds
: 391529 rows, 3236 columns, 1177693 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 391529 rows, 3236 columns and 1177693 nonzeros
Model fingerprint: 0xfb78fda2
Variable types: 57 continuous, 3179 integer (3179 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 2.0000000
Presolve removed 162232 rows and 9 columns
Presolve time: 3.53s
Presolved: 229297 rows, 3227 columns, 691531 nonzeros
Variable types: 0 continuous, 3227 integer (3170 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3217 rows, 232514 columns, 694758 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2207    2.7557351e+02   0.000000e+00   9.438948e+05      5s
   23607    1.0136797e+02   0.000000e+00   2.053691e+06     11s
   37785    7.6752002e+01   0.000000e+00   6.407330e+05     15s
   50626    6.7676594e+01   0.000000e+00   2.618282e+05     20s
   63544    6.7622341e+01   0.000000e+00   9.790237e+04     25s
   76064    6.7590260e+01   0.000000e+00   2.340042e+04     30s
   89076    6.7573672e+01   0.000000e+00   1.845412e+04     35s
  102374    6.7560203e+01   0.000000e+00   4.156148e+04     40s
  116420    6.7550514e+01   0.000000e+00   6.866756e+03     45s

Root relaxation: time limit, 129360 iterations, 46.05 seconds (26.44 work units)

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

     0     0          -    0        12.00000  440.00000  3567%     -   50s

Explored 1 nodes (129360 simplex iterations) in 50.04 seconds (29.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 2 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.400000000000e+02, gap 3566.6667%

Wrote result file './lp_solutions/grafo7622.45.sol'

