
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:21:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7232.38.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/grafo7232.38.lp
Reading time = 0.15 seconds
: 93528 rows, 2340 columns, 282829 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 93528 rows, 2340 columns and 282829 nonzeros
Model fingerprint: 0xb1c15c55
Variable types: 51 continuous, 2289 integer (2289 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 3.0000000
Presolve removed 19849 rows and 36 columns
Presolve time: 0.66s
Presolved: 73679 rows, 2304 columns, 223776 nonzeros
Variable types: 0 continuous, 2304 integer (2253 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2304 rows, 75983 columns, 226080 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22292    4.5689928e+01   0.000000e+00   3.568190e+04      5s
   45525    4.5672830e+01   0.000000e+00   2.523000e+02     10s
   50949    4.6000000e+01   0.000000e+00   0.000000e+00     11s
   50949    4.6000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.600000e+01, 50949 iterations, 10.47 seconds (8.57 work units)
Total elapsed time = 27.03s (DegenMoves)
Total elapsed time = 30.30s (DegenMoves)

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

     0     0   46.00000    0  761    6.00000   46.00000   667%     -   31s
H    0     0                      10.0000000   46.00000   360%     -   31s
     0     0          -    0        10.00000   46.00000   360%     -   50s

Cutting planes:
  Gomory: 29
  Cover: 20
  Clique: 27
  MIR: 90
  GUB cover: 8
  Zero half: 9
  RLT: 59
  BQP: 5

Explored 1 nodes (74708 simplex iterations) in 50.09 seconds (44.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 6 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.600000000000e+01, gap 360.0000%

Wrote result file './lp_solutions/grafo7232.38.sol'

