
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:28:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3764.45.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/grafo3764.45.lp
Reading time = 0.27 seconds
: 171501 rows, 2913 columns, 517134 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 171501 rows, 2913 columns and 517134 nonzeros
Model fingerprint: 0x49a85d74
Variable types: 54 continuous, 2859 integer (2859 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 53773 rows and 19 columns
Presolve time: 1.20s
Presolved: 117728 rows, 2894 columns, 356331 nonzeros
Variable types: 0 continuous, 2894 integer (2840 binary)
Root relaxation presolved: 2882 rows, 120610 columns, 359225 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17899    7.0805683e+01   0.000000e+00   1.482961e+05      5s
   39152    6.0738247e+01   0.000000e+00   2.309463e+04     10s
   58836    6.0730914e+01   0.000000e+00   3.884063e+02     15s
   63963    6.1000000e+01   0.000000e+00   0.000000e+00     16s
   63963    6.1000000e+01   0.000000e+00   0.000000e+00     16s
   63963    6.1000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 6.100000e+01, 63963 iterations, 14.99 seconds (11.59 work units)
Total elapsed time = 34.10s (DegenMoves)
Total elapsed time = 37.42s (DegenMoves)

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

     0     0   61.00000    0  610          -   61.00000      -     -   39s
H    0     0                      12.0000000   61.00000   408%     -   39s
H    0     0                      13.0000000   61.00000   369%     -   39s
     0     0          -    0        13.00000   61.00000   369%     -   50s

Cutting planes:
  Gomory: 42
  Cover: 56
  Clique: 44
  MIR: 160
  GUB cover: 4
  Zero half: 62
  RLT: 61
  BQP: 5

Explored 1 nodes (83893 simplex iterations) in 50.03 seconds (49.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 12 

Time limit reached
Best objective 1.300000000000e+01, best bound 6.100000000000e+01, gap 369.2308%

Wrote result file './lp_solutions/grafo3764.45.sol'

