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Gurobi: Just print an error in case of inaccuracies instead of throwing an exception.

tempestpy_adaptions
Tim Quatmann 5 years ago
parent
944c4a5fc3
commit
bb1e1b2704
1 changed files with 12 additions and 10 deletions
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  1. 22
      src/storm/solver/GurobiLpSolver.cpp

22
src/storm/solver/GurobiLpSolver.cpp
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@ -345,9 +345,10 @@ namespace storm {
double value = 0;
int error = GRBgetdblattrelement(model, GRB_DBL_ATTR_X, variableIndexPair->second, &value);
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
STORM_LOG_THROW(std::abs(std::round(value) - value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return static_cast<int_fast64_t>(std::round(value));
double roundedValue = std::round(value);
double diff = std::abs(roundedValue - value);
STORM_LOG_ERROR_COND(diff <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), "Illegal value for integer variable in Gurobi solution (" << value << "). Difference to nearest int is " << diff);
return static_cast<int_fast64_t>(roundedValue);
}
template<typename ValueType>
@ -366,10 +367,10 @@ namespace storm {
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
if (value > 0.5) {
STORM_LOG_THROW(std::abs(value - 1.0) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_ERROR_COND(std::abs(value - 1.0) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), "Illegal value for integer variable in Gurobi solution (" << value << ").");
return true;
} else {
STORM_LOG_THROW(std::abs(value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_ERROR_COND(std::abs(value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), "Illegal value for integer variable in Gurobi solution (" << value << ").");
return false;
}
}
@ -499,9 +500,10 @@ namespace storm {
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to set Gurobi solution index (" << GRBgeterrormsg(env) << ", error code " << error << ").");
error = GRBgetdblattrelement(model, GRB_DBL_ATTR_Xn, variableIndexPair->second, &value);
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
STORM_LOG_THROW(std::abs(std::round(value) - value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
return static_cast<int_fast64_t>(std::round(value));
double roundedValue = std::round(value);
double diff = std::abs(roundedValue - value);
STORM_LOG_ERROR_COND(diff <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), "Illegal value for integer variable in Gurobi solution (" << value << "). Difference to nearest int is " << diff);
return static_cast<int_fast64_t>(roundedValue);
}
template<typename ValueType>
@ -523,10 +525,10 @@ namespace storm {
STORM_LOG_THROW(error == 0, storm::exceptions::InvalidStateException, "Unable to get Gurobi solution (" << GRBgeterrormsg(env) << ", error code " << error << ").");
if (value > 0.5) {
STORM_LOG_THROW(std::abs(value - 1) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_ERROR_COND(std::abs(value - 1) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), "Illegal value for integer variable in Gurobi solution (" << value << ").");
return true;
} else {
STORM_LOG_THROW(std::abs(value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), storm::exceptions::InvalidStateException, "Illegal value for integer variable in Gurobi solution (" << value << ").");
STORM_LOG_ERROR_COND(std::abs(value) <= storm::settings::getModule<storm::settings::modules::GurobiSettings>().getIntegerTolerance(), "Illegal value for integer variable in Gurobi solution (" << value << ").");
return false;
}
}

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