
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 22:01:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3332.38.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/grafo3332.38.lp
Reading time = 0.16 seconds
: 91081 rows, 1525 columns, 274208 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 91081 rows, 1525 columns and 274208 nonzeros
Model fingerprint: 0xb1ea250b
Variable types: 34 continuous, 1491 integer (1491 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 34161 rows and 24 columns
Presolve time: 0.69s
Presolved: 56920 rows, 1501 columns, 171991 nonzeros
Variable types: 0 continuous, 1501 integer (1467 binary)
Root relaxation presolved: 1501 rows, 58421 columns, 173492 nonzeros


Root relaxation: objective 2.900000e+01, 1287 iterations, 0.42 seconds (0.36 work units)

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

     0     0   29.00000    0  282          -   29.00000      -     -    4s
H    0     0                       5.0000000   29.00000   480%     -    4s
H    0     0                       7.0000000   29.00000   314%     -    4s
     0     0   29.00000    0  483    7.00000   29.00000   314%     -    8s
     0     0   29.00000    0  438    7.00000   29.00000   314%     -    9s
H    0     0                       9.0000000   29.00000   222%     -   25s
H    0     0                      11.0000000   29.00000   164%     -   25s
     0     0   29.00000    0  281   11.00000   29.00000   164%     -   25s
H    0     0                      12.0000000   29.00000   142%     -   26s
     0     0   29.00000    0  257   12.00000   29.00000   142%     -   26s
     0     0   29.00000    0  357   12.00000   29.00000   142%     -   33s
     0     0   29.00000    0  323   12.00000   29.00000   142%     -   34s
     0     0   29.00000    0  239   12.00000   29.00000   142%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 24
  Clique: 19
  MIR: 75
  StrongCG: 2
  GUB cover: 8
  Zero half: 118
  RLT: 42
  BQP: 5

Explored 1 nodes (46686 simplex iterations) in 50.06 seconds (48.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 9 ... 5

Time limit reached
Best objective 1.200000000000e+01, best bound 2.900000000000e+01, gap 141.6667%

Wrote result file './lp_solutions/grafo3332.38.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:45:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3332.38.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/grafo3332.38.lp
Reading time = 0.15 seconds
: 91081 rows, 1525 columns, 274208 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 91081 rows, 1525 columns and 274208 nonzeros
Model fingerprint: 0xb1ea250b
Variable types: 34 continuous, 1491 integer (1491 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 34161 rows and 24 columns
Presolve time: 0.64s
Presolved: 56920 rows, 1501 columns, 171991 nonzeros
Variable types: 0 continuous, 1501 integer (1467 binary)
Root relaxation presolved: 1501 rows, 58421 columns, 173492 nonzeros


Root relaxation: objective 2.900000e+01, 1287 iterations, 0.35 seconds (0.36 work units)

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

     0     0   29.00000    0  282          -   29.00000      -     -    3s
H    0     0                       5.0000000   29.00000   480%     -    3s
H    0     0                       7.0000000   29.00000   314%     -    3s
     0     0   29.00000    0  483    7.00000   29.00000   314%     -    7s
     0     0   29.00000    0  438    7.00000   29.00000   314%     -    8s
H    0     0                       9.0000000   29.00000   222%     -   22s
H    0     0                      11.0000000   29.00000   164%     -   22s
     0     0   29.00000    0  281   11.00000   29.00000   164%     -   22s
H    0     0                      12.0000000   29.00000   142%     -   22s
     0     0   29.00000    0  257   12.00000   29.00000   142%     -   23s
     0     0   29.00000    0  357   12.00000   29.00000   142%     -   30s
     0     0   29.00000    0  323   12.00000   29.00000   142%     -   30s
H    0     0                      13.0000000   29.00000   123%     -   47s
H    0     0                      14.0000000   29.00000   107%     -   47s
     0     0   29.00000    0  239   14.00000   29.00000   107%     -   47s
     0     0   29.00000    0  261   14.00000   29.00000   107%     -   48s
     0     0          -    0        14.00000   29.00000   107%     -   50s

Cutting planes:
  Cover: 23
  Clique: 16
  MIR: 75
  GUB cover: 3
  Zero half: 53
  RLT: 47
  BQP: 2

Explored 1 nodes (48516 simplex iterations) in 50.07 seconds (50.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 14 13 12 ... 5

Time limit reached
Best objective 1.400000000000e+01, best bound 2.900000000000e+01, gap 107.1429%

Wrote result file './lp_solutions/grafo3332.38.sol'

