Environment - simulationEnvironment: startTime=0 stopTime=1.01 tolerance=1e-06 numberOfIntervals=2500 stepSize=0.000404 Regular simulation: ./Modelica_3.2.3_Modelica.Mechanics.MultiBody.Examples.Loops.EngineV6_analytic -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS LOG_STDOUT | info | Using sparse solver for linear system 0, | | | | because density of 0.007 remains under threshold of 0.200. LOG_STDOUT | info | The maximum density for using sparse solvers can be specified | | | | using the runtime flag '<-lssMaxDensity=value>'. LOG_STDOUT | warning | Internal Numerical Jacobians without coloring are currently not supported by IDA with KLU. Colored numerical Jacobian will be used. LOG_ASSERT | warning | The following assertion has been violated during initialization at time 0.000000 LOG_ASSERT | debug | Model error: Argument of sqrt(engine.cylinder6.jointRRP.jointUSP.rod1.length2_n2_a) was -nan should be >= 0 LOG_ASSERT | warning | The following assertion has been violated during initialization at time 0.000000 LOG_ASSERT | debug | Model error: Argument of sqrt(engine.cylinder6.jointRRP.jointUSP.rod1.length2_n2_a) was -nan should be >= 0 LOG_ASSERT | debug | ##IDA## In function IDAGetNumNonlinSolvIters: The user-provided residual function failed in an unrecoverable manner. LOG_ASSERT | info | simulation terminated by an assertion at initialization