
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 06:32:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3778.37.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/grafo3778.37.lp
Reading time = 0.09 seconds
: 49622 rows, 1532 columns, 149896 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 49622 rows, 1532 columns and 149896 nonzeros
Model fingerprint: 0x916184bf
Variable types: 36 continuous, 1496 integer (1496 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 11644 rows and 24 columns
Presolve time: 0.43s
Presolved: 37978 rows, 1508 columns, 115260 nonzeros
Variable types: 0 continuous, 1508 integer (1472 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 23068 rows, 16418 columns, 85440 nonzeros


Root relaxation: objective 3.400000e+01, 1436 iterations, 0.73 seconds (0.43 work units)

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

     0     0   34.00000    0  337    8.00000   34.00000   325%     -    3s
H    0     0                       9.0000000   34.00000   278%     -    3s
     0     0   34.00000    0  455    9.00000   34.00000   278%     -    7s
     0     0   34.00000    0  426    9.00000   34.00000   278%     -    7s
H    0     0                      10.0000000   34.00000   240%     -   10s
H    0     0                      12.0000000   34.00000   183%     -   17s
     0     0   34.00000    0  350   12.00000   34.00000   183%     -   17s
     0     0   34.00000    0  295   12.00000   34.00000   183%     -   18s
     0     0   34.00000    0  301   12.00000   34.00000   183%     -   23s
     0     0   34.00000    0  302   12.00000   34.00000   183%     -   23s
     0     0   34.00000    0  242   12.00000   34.00000   183%     -   28s
     0     0   34.00000    0  290   12.00000   34.00000   183%     -   29s
     0     0   33.66667    0  357   12.00000   33.66667   181%     -   35s
     0     0   33.66667    0  359   12.00000   33.66667   181%     -   37s
     0     0   33.66667    0  384   12.00000   33.66667   181%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 25
  Clique: 13
  MIR: 120
  Zero half: 70
  RLT: 55

Explored 1 nodes (52092 simplex iterations) in 50.07 seconds (33.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 10 9 8 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.300000000000e+01, gap 175.0000%

Wrote result file './lp_solutions/grafo3778.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:29:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3778.37.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/grafo3778.37.lp
Reading time = 0.08 seconds
: 49622 rows, 1532 columns, 149896 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 49622 rows, 1532 columns and 149896 nonzeros
Model fingerprint: 0x916184bf
Variable types: 36 continuous, 1496 integer (1496 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 11644 rows and 24 columns
Presolve time: 0.35s
Presolved: 37978 rows, 1508 columns, 115260 nonzeros
Variable types: 0 continuous, 1508 integer (1472 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 23068 rows, 16418 columns, 85440 nonzeros


Root relaxation: objective 3.400000e+01, 1436 iterations, 0.43 seconds (0.43 work units)

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

     0     0   34.00000    0  337    8.00000   34.00000   325%     -    2s
H    0     0                       9.0000000   34.00000   278%     -    2s
     0     0   34.00000    0  455    9.00000   34.00000   278%     -    4s
     0     0   34.00000    0  426    9.00000   34.00000   278%     -    4s
H    0     0                      10.0000000   34.00000   240%     -    6s
H    0     0                      12.0000000   34.00000   183%     -   11s
     0     0   34.00000    0  350   12.00000   34.00000   183%     -   11s
     0     0   34.00000    0  295   12.00000   34.00000   183%     -   11s
     0     0   34.00000    0  301   12.00000   34.00000   183%     -   15s
     0     0   34.00000    0  302   12.00000   34.00000   183%     -   15s
     0     0   34.00000    0  242   12.00000   34.00000   183%     -   18s
     0     0   34.00000    0  290   12.00000   34.00000   183%     -   19s
     0     0   33.66667    0  357   12.00000   33.66667   181%     -   23s
     0     0   33.66667    0  359   12.00000   33.66667   181%     -   24s
H    0     0                      13.0000000   33.66667   159%     -   37s
     0     0   33.66667    0  312   13.00000   33.66667   159%     -   37s
     0     0   33.66667    0  351   13.00000   33.66667   159%     -   38s
     0     0   33.66667    0  246   13.00000   33.66667   159%     -   45s
     0     0   33.66667    0  315   13.00000   33.66667   159%     -   46s
     0     0   33.66667    0  374   13.00000   33.66667   159%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 27
  Clique: 3
  MIR: 104
  StrongCG: 2
  GUB cover: 1
  Inf proof: 1
  Zero half: 47
  RLT: 60

Explored 1 nodes (73782 simplex iterations) in 50.08 seconds (46.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 10 ... 8

Time limit reached
Best objective 1.300000000000e+01, best bound 3.300000000000e+01, gap 153.8462%

Wrote result file './lp_solutions/grafo3778.37.sol'

