
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:07:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7359.38.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/grafo7359.38.lp
Reading time = 0.29 seconds
: 178657 rows, 2104 columns, 537813 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 178657 rows, 2104 columns and 537813 nonzeros
Model fingerprint: 0x82629bba
Variable types: 45 continuous, 2059 integer (2059 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 6.0000000
Presolve removed 79648 rows and 23 columns
Presolve time: 1.45s
Presolved: 99009 rows, 2081 columns, 299311 nonzeros
Variable types: 0 continuous, 2081 integer (2036 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2081 rows, 101090 columns, 301392 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20329    4.9913444e+01   0.000000e+00   1.301385e+05      5s
   47590    4.5816935e+01   0.000000e+00   4.021479e+03     10s
   67078    4.6000000e+01   0.000000e+00   0.000000e+00     14s
   67078    4.6000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.600000e+01, 67078 iterations, 12.01 seconds (8.68 work units)
Total elapsed time = 23.24s (DegenMoves)

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

     0     0   46.00000    0  401    8.00000   46.00000   475%     -   24s
H    0     0                      11.0000000   46.00000   318%     -   25s
     0     0   46.00000    0  720   11.00000   46.00000   318%     -   33s
     0     0   46.00000    0  644   11.00000   46.00000   318%     -   35s
     0     0   46.00000    0  714   11.00000   46.00000   318%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 37
  Cover: 7
  Clique: 14
  MIR: 93
  GUB cover: 1
  Zero half: 46
  RLT: 45
  BQP: 5
  PSD: 1

Explored 1 nodes (88973 simplex iterations) in 50.03 seconds (47.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 8 6 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.600000000000e+01, gap 318.1818%

Wrote result file './lp_solutions/grafo7359.38.sol'

