
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:42:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9935.40.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/grafo9935.40.lp
Reading time = 0.16 seconds
: 103079 rows, 2028 columns, 310829 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 103079 rows, 2028 columns and 310829 nonzeros
Model fingerprint: 0x32b28ed5
Variable types: 43 continuous, 1985 integer (1985 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 33225 rows and 15 columns
Presolve time: 0.70s
Presolved: 69854 rows, 2013 columns, 211498 nonzeros
Variable types: 0 continuous, 2013 integer (1970 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2004 rows, 71858 columns, 213511 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27172    4.4795304e+01   0.000000e+00   4.228157e+03      5s
   35107    4.5000000e+01   0.000000e+00   0.000000e+00      6s
   35107    4.5000000e+01   0.000000e+00   0.000000e+00      6s
   35107    4.5000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.500000e+01, 35107 iterations, 5.68 seconds (4.91 work units)
Total elapsed time = 15.69s (DegenMoves)
Total elapsed time = 23.91s (DegenMoves)
Total elapsed time = 27.52s (DegenMoves)

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

     0     0   45.00000    0  531    7.00000   45.00000   543%     -   33s
H    0     0                      10.0000000   45.00000   350%     -   33s
     0     0   45.00000    0  725   10.00000   45.00000   350%     -   43s
     0     0   45.00000    0  727   10.00000   45.00000   350%     -   45s

Cutting planes:
  Gomory: 1
  Lift-and-project: 29
  Cover: 20
  Clique: 20
  MIR: 107
  Zero half: 50
  RLT: 37
  BQP: 1

Explored 1 nodes (69327 simplex iterations) in 50.21 seconds (52.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 7 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo9935.40.sol'

