
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:05:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7735.46.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/grafo7735.46.lp
Reading time = 0.24 seconds
: 124500 rows, 2696 columns, 375725 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 124500 rows, 2696 columns and 375725 nonzeros
Model fingerprint: 0xacb4e291
Variable types: 50 continuous, 2646 integer (2646 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 31137 rows and 33 columns
Presolve time: 1.15s
Presolved: 93363 rows, 2663 columns, 282877 nonzeros
Variable types: 0 continuous, 2663 integer (2613 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2663 rows, 96026 columns, 285540 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16331    5.2789900e+01   0.000000e+00   1.208098e+05      5s
   33972    5.2741812e+01   0.000000e+00   1.713601e+04     10s
   48641    5.3000000e+01   0.000000e+00   0.000000e+00     15s
   48641    5.3000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 5.300000e+01, 48641 iterations, 13.38 seconds (8.53 work units)
Total elapsed time = 15.15s (DegenMoves)
Total elapsed time = 35.83s (DegenMoves)
Total elapsed time = 41.10s (DegenMoves)

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

     0     0   53.00000    0  648    6.00000   53.00000   783%     -   41s
H    0     0                       9.0000000   53.00000   489%     -   42s
     0     0          -    0         9.00000   53.00000   489%     -   50s

Cutting planes:
  Gomory: 41
  Cover: 31
  Clique: 8
  MIR: 148
  GUB cover: 6
  Zero half: 38
  RLT: 42
  BQP: 1

Explored 1 nodes (68029 simplex iterations) in 50.02 seconds (40.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 6 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.300000000000e+01, gap 488.8889%

Wrote result file './lp_solutions/grafo7735.46.sol'

