
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:45:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7544.40.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/grafo7544.40.lp
Reading time = 0.31 seconds
: 195309 rows, 2353 columns, 588033 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 195309 rows, 2353 columns and 588033 nonzeros
Model fingerprint: 0x86ef4e63
Variable types: 47 continuous, 2306 integer (2306 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 82092 rows and 12 columns
Presolve time: 1.19s
Presolved: 113217 rows, 2341 columns, 342277 nonzeros
Variable types: 0 continuous, 2341 integer (2294 binary)
Root relaxation presolved: 2328 rows, 115545 columns, 344618 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19583    4.9753984e+01   0.000000e+00   1.430014e+05      5s
   44019    4.8663777e+01   0.000000e+00   1.906243e+04     10s
   69364    4.8642515e+01   0.000000e+00   9.247334e+03     15s
   86700    4.9000000e+01   0.000000e+00   0.000000e+00     19s
   86700    4.9000000e+01   0.000000e+00   0.000000e+00     19s
   86700    4.9000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.900000e+01, 86700 iterations, 17.14 seconds (12.92 work units)
Total elapsed time = 30.55s (DegenMoves)

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

     0     0   49.00000    0  429          -   49.00000      -     -   34s
H    0     0                       8.0000000   49.00000   512%     -   34s
H    0     0                      10.0000000   49.00000   390%     -   34s
     0     0   49.00000    0  822   10.00000   49.00000   390%     -   49s
     0     0   49.00000    0  822   10.00000   49.00000   390%     -   50s

Cutting planes:
  Gomory: 4
  Clique: 14
  MIR: 45
  Zero half: 4
  RLT: 29
  BQP: 3

Explored 1 nodes (105849 simplex iterations) in 50.06 seconds (51.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.900000000000e+01, gap 390.0000%

Wrote result file './lp_solutions/grafo7544.40.sol'

