
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:46:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3963.47.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/grafo3963.47.lp
Reading time = 0.29 seconds
: 143227 rows, 2535 columns, 431591 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 143227 rows, 2535 columns and 431591 nonzeros
Model fingerprint: 0x3c445e21
Variable types: 47 continuous, 2488 integer (2488 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 44222 rows and 29 columns
Presolve time: 1.59s
Presolved: 99005 rows, 2506 columns, 299290 nonzeros
Variable types: 0 continuous, 2506 integer (2459 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2506 rows, 101511 columns, 301796 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13388    5.2278533e+01   0.000000e+00   2.582952e+05      5s
   31510    4.9727820e+01   0.000000e+00   4.778239e+03     10s
   47864    4.9721936e+01   0.000000e+00   5.846842e+01     15s
   49591    5.0000000e+01   0.000000e+00   0.000000e+00     16s
   49591    5.0000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.000000e+01, 49591 iterations, 13.85 seconds (8.53 work units)
Total elapsed time = 34.78s (DegenMoves)
Total elapsed time = 37.48s (DegenMoves)

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

     0     0   50.00000    0  537    6.00000   50.00000   733%     -   39s
H    0     0                       9.0000000   50.00000   456%     -   40s
     0     0          -    0         9.00000   50.00000   456%     -   50s

Cutting planes:
  Gomory: 41
  Cover: 46
  Clique: 24
  MIR: 123
  GUB cover: 7
  Zero half: 17
  RLT: 53
  BQP: 1

Explored 1 nodes (67554 simplex iterations) in 50.02 seconds (38.55 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 5.000000000000e+01, gap 455.5556%

Wrote result file './lp_solutions/grafo3963.47.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:14:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3963.47.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/grafo3963.47.lp
Reading time = 0.23 seconds
: 143227 rows, 2535 columns, 431591 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 143227 rows, 2535 columns and 431591 nonzeros
Model fingerprint: 0x3c445e21
Variable types: 47 continuous, 2488 integer (2488 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 44222 rows and 29 columns
Presolve time: 1.06s
Presolved: 99005 rows, 2506 columns, 299290 nonzeros
Variable types: 0 continuous, 2506 integer (2459 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2506 rows, 101511 columns, 301796 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20460    4.9745183e+01   0.000000e+00   8.842387e+04      5s
   43444    4.9722504e+01   0.000000e+00   9.039974e+02     10s
   49591    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   49591    5.0000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.000000e+01, 49591 iterations, 10.17 seconds (8.53 work units)
Total elapsed time = 27.17s (DegenMoves)
Total elapsed time = 30.05s (DegenMoves)

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

     0     0   50.00000    0  537    6.00000   50.00000   733%     -   30s
H    0     0                       9.0000000   50.00000   456%     -   31s
     0     0   50.00000    0  944    9.00000   50.00000   456%     -   47s
     0     0   50.00000    0  930    9.00000   50.00000   456%     -   48s

Cutting planes:
  Gomory: 1
  Cover: 22
  Clique: 21
  MIR: 121
  GUB cover: 1
  Zero half: 3
  RLT: 32

Explored 1 nodes (73178 simplex iterations) in 50.05 seconds (51.58 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 5.000000000000e+01, gap 455.5556%

Wrote result file './lp_solutions/grafo3963.47.sol'

