
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:47:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7555.45.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/grafo7555.45.lp
Reading time = 0.13 seconds
: 86296 rows, 2624 columns, 261165 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 86296 rows, 2624 columns and 261165 nonzeros
Model fingerprint: 0x505b802b
Variable types: 52 continuous, 2572 integer (2572 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 8390 rows and 2 columns
Presolve time: 0.48s
Presolved: 77906 rows, 2622 columns, 236322 nonzeros
Variable types: 0 continuous, 2622 integer (2570 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2592 rows, 80498 columns, 238944 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19760    4.8940402e+01   0.000000e+00   8.562036e+04      5s
   40057    4.8920435e+01   0.000000e+00   2.113202e+04     10s
   59690    4.8913915e+01   0.000000e+00   1.009941e+04     15s
   71454    4.9000000e+01   0.000000e+00   0.000000e+00     18s
   71454    4.9000000e+01   0.000000e+00   0.000000e+00     18s
   71454    4.9000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.900000e+01, 71454 iterations, 17.56 seconds (16.70 work units)
Total elapsed time = 30.41s (DegenMoves)

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

     0     0   49.00000    0  483   10.00000   49.00000   390%     -   32s
H    0     0                      11.0000000   49.00000   345%     -   32s
     0     0   49.00000    0  856   11.00000   49.00000   345%     -   42s
     0     0   49.00000    0  803   11.00000   49.00000   345%     -   43s
     0     0          -    0        11.00000   49.00000   345%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 47
  Cover: 19
  Clique: 2
  MIR: 161
  Zero half: 35
  RLT: 63

Explored 1 nodes (94923 simplex iterations) in 50.02 seconds (46.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 10 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.900000000000e+01, gap 345.4545%

Wrote result file './lp_solutions/grafo7555.45.sol'

