
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:34:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7742.46.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/grafo7742.46.lp
Reading time = 0.28 seconds
: 167265 rows, 2761 columns, 504163 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 167265 rows, 2761 columns and 504163 nonzeros
Model fingerprint: 0xeb3c6902
Variable types: 52 continuous, 2709 integer (2709 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 50906 rows and 24 columns
Presolve time: 1.39s
Presolved: 116359 rows, 2737 columns, 351835 nonzeros
Variable types: 0 continuous, 2737 integer (2685 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2725 rows, 119084 columns, 354572 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15530    5.1917188e+01   0.000000e+00   2.339484e+05      5s
   35516    5.1755380e+01   0.000000e+00   1.506999e+05     10s
   54668    5.1732534e+01   0.000000e+00   1.225988e+04     15s
   69284    5.1727944e+01   0.000000e+00   3.189537e+02     20s
   74795    5.2000000e+01   0.000000e+00   0.000000e+00     22s
   74795    5.2000000e+01   0.000000e+00   0.000000e+00     22s
   74795    5.2000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.200000e+01, 74795 iterations, 20.42 seconds (13.27 work units)
Total elapsed time = 40.98s (DegenMoves)

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

     0     0   52.00000    0  522   10.00000   52.00000   420%     -   45s
H    0     0                      12.0000000   52.00000   333%     -   45s
     0     0          -    0        12.00000   52.00000   333%     -   50s

Cutting planes:
  Gomory: 37
  Cover: 41
  Clique: 8
  MIR: 162
  GUB cover: 5
  Zero half: 103
  RLT: 55
  BQP: 1

Explored 1 nodes (91651 simplex iterations) in 50.04 seconds (38.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 10 

Time limit reached
Best objective 1.200000000000e+01, best bound 5.200000000000e+01, gap 333.3333%

Wrote result file './lp_solutions/grafo7742.46.sol'

