
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:05:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7277.46.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/grafo7277.46.lp
Reading time = 0.26 seconds
: 162684 rows, 2809 columns, 490438 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 162684 rows, 2809 columns and 490438 nonzeros
Model fingerprint: 0x7c8dbd9c
Variable types: 52 continuous, 2757 integer (2757 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]
Presolve removed 50028 rows and 25 columns
Presolve time: 1.16s
Presolved: 112656 rows, 2784 columns, 340795 nonzeros
Variable types: 0 continuous, 2784 integer (2732 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2784 rows, 115440 columns, 343579 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18770    6.4418341e+01   0.000000e+00   1.361599e+05      5s
   39496    6.1755607e+01   0.000000e+00   5.895270e+04     10s
   60088    6.1731783e+01   0.000000e+00   1.072760e+04     15s
   77677    6.2000000e+01   0.000000e+00   0.000000e+00     19s
   77677    6.2000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 6.200000e+01, 77677 iterations, 18.10 seconds (13.93 work units)
Total elapsed time = 37.34s (DegenMoves)
Total elapsed time = 40.05s (DegenMoves)

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

     0     0   62.00000    0  603    7.00000   62.00000   786%     -   40s
H    0     0                      10.0000000   62.00000   520%     -   40s
     0     0          -    0        10.00000   62.00000   520%     -   50s

Cutting planes:
  Gomory: 25
  Cover: 57
  Clique: 39
  MIR: 204
  StrongCG: 1
  GUB cover: 8
  Zero half: 44
  RLT: 62
  BQP: 2

Explored 1 nodes (96664 simplex iterations) in 50.02 seconds (47.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.200000000000e+01, gap 520.0000%

Wrote result file './lp_solutions/grafo7277.46.sol'

