java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer ReUseSupersetCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 23:58:48,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 23:58:48,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 23:58:48,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 23:58:48,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 23:58:48,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 23:58:48,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 23:58:48,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 23:58:48,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 23:58:48,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 23:58:48,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 23:58:48,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 23:58:48,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 23:58:48,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 23:58:48,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 23:58:48,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 23:58:48,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 23:58:48,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 23:58:48,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 23:58:48,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 23:58:48,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 23:58:48,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 23:58:48,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 23:58:48,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 23:58:48,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 23:58:48,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 23:58:48,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 23:58:48,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 23:58:48,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 23:58:48,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 23:58:48,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 23:58:48,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 23:58:48,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 23:58:48,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 23:58:48,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 23:58:48,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 23:58:48,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 23:58:48,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 23:58:48,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 23:58:48,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 23:58:48,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 23:58:48,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-18 23:58:48,194 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 23:58:48,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 23:58:48,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 23:58:48,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 23:58:48,196 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 23:58:48,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 23:58:48,196 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 23:58:48,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 23:58:48,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 23:58:48,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 23:58:48,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 23:58:48,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 23:58:48,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 23:58:48,198 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 23:58:48,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 23:58:48,198 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 23:58:48,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 23:58:48,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 23:58:48,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 23:58:48,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 23:58:48,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 23:58:48,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 23:58:48,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 23:58:48,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 23:58:48,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 23:58:48,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 23:58:48,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 23:58:48,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 23:58:48,202 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> ReUseSupersetCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-18 23:58:48,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 23:58:48,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 23:58:48,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 23:58:48,276 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 23:58:48,277 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 23:58:48,277 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product11.cil.c [2019-09-18 23:58:48,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0837fb24/aa13a3f78bfe4dfd949067530eaff83c/FLAG2888947b8 [2019-09-18 23:58:48,834 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 23:58:48,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product11.cil.c [2019-09-18 23:58:48,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0837fb24/aa13a3f78bfe4dfd949067530eaff83c/FLAG2888947b8 [2019-09-18 23:58:49,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0837fb24/aa13a3f78bfe4dfd949067530eaff83c [2019-09-18 23:58:49,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 23:58:49,104 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 23:58:49,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 23:58:49,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 23:58:49,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 23:58:49,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38efe2b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49, skipping insertion in model container [2019-09-18 23:58:49,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,121 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 23:58:49,181 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 23:58:49,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 23:58:49,575 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 23:58:49,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 23:58:49,754 INFO L192 MainTranslator]: Completed translation [2019-09-18 23:58:49,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49 WrapperNode [2019-09-18 23:58:49,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 23:58:49,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 23:58:49,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 23:58:49,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 23:58:49,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... [2019-09-18 23:58:49,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 23:58:49,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 23:58:49,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 23:58:49,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 23:58:49,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:58:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 23:58:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 23:58:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 23:58:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-18 23:58:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-18 23:58:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-18 23:58:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-18 23:58:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-18 23:58:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-18 23:58:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-18 23:58:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-18 23:58:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-18 23:58:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-18 23:58:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-18 23:58:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-18 23:58:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 23:58:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-18 23:58:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-18 23:58:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-18 23:58:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-18 23:58:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-18 23:58:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-18 23:58:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-18 23:58:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-18 23:58:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-18 23:58:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-18 23:58:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-18 23:58:49,914 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-18 23:58:49,914 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-18 23:58:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-18 23:58:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-18 23:58:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-18 23:58:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-18 23:58:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-18 23:58:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-18 23:58:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-18 23:58:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-18 23:58:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-18 23:58:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-18 23:58:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-18 23:58:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-18 23:58:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-18 23:58:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 23:58:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-18 23:58:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-18 23:58:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-18 23:58:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-18 23:58:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-18 23:58:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-18 23:58:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 23:58:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-18 23:58:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-18 23:58:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-18 23:58:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-18 23:58:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-18 23:58:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-18 23:58:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-18 23:58:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-18 23:58:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-18 23:58:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-18 23:58:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-18 23:58:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-18 23:58:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-18 23:58:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-18 23:58:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-18 23:58:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 23:58:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 23:58:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 23:58:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-18 23:58:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 23:58:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-18 23:58:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-18 23:58:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 23:58:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-18 23:58:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-18 23:58:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-18 23:58:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 23:58:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-18 23:58:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 23:58:51,367 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 23:58:51,367 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-18 23:58:51,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:58:51 BoogieIcfgContainer [2019-09-18 23:58:51,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 23:58:51,369 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 23:58:51,369 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 23:58:51,370 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 23:58:51,371 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:58:51" (1/1) ... [2019-09-18 23:58:51,371 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=ReUseSupersetCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-18 23:58:51,402 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 23:58:51,402 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 23:58:51,415 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 23:58:51,434 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 23:58:51,435 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 23:59:04,030 WARN L191 SmtUtils]: Spent 12.44 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-18 23:59:15,762 WARN L191 SmtUtils]: Spent 11.73 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-18 23:59:37,498 WARN L191 SmtUtils]: Spent 13.38 s on a formula simplification that was a NOOP. DAG size: 466 [2019-09-18 23:59:39,216 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-18 23:59:43,001 WARN L191 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 474 DAG size of output: 424 [2019-09-18 23:59:43,009 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 434 for LOIs [2019-09-18 23:59:44,720 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-18 23:59:46,479 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-18 23:59:48,181 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-18 23:59:49,914 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-18 23:59:51,634 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-18 23:59:53,350 WARN L191 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-18 23:59:55,059 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-18 23:59:56,795 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 424 [2019-09-18 23:59:56,803 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 434 for LOIs [2019-09-18 23:59:58,537 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-19 00:00:00,243 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-19 00:00:00,252 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 434 for LOIs [2019-09-19 00:00:03,876 WARN L191 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 433 DAG size of output: 427 [2019-09-19 00:00:05,578 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 427 [2019-09-19 00:00:16,491 WARN L191 SmtUtils]: Spent 10.85 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 00:00:21,801 WARN L191 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 00:00:32,721 WARN L191 SmtUtils]: Spent 10.92 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 00:00:37,992 WARN L191 SmtUtils]: Spent 5.27 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 00:00:48,854 WARN L191 SmtUtils]: Spent 10.86 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 00:00:54,164 WARN L191 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 00:01:04,993 WARN L191 SmtUtils]: Spent 10.83 s on a formula simplification. DAG size of input: 454 DAG size of output: 452 [2019-09-19 00:01:10,370 WARN L191 SmtUtils]: Spent 5.37 s on a formula simplification that was a NOOP. DAG size: 452 [2019-09-19 00:01:20,521 WARN L191 SmtUtils]: Spent 10.05 s on a formula simplification. DAG size of input: 435 DAG size of output: 430 [2019-09-19 00:01:25,512 WARN L191 SmtUtils]: Spent 4.99 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-19 00:01:43,867 WARN L191 SmtUtils]: Spent 18.31 s on a formula simplification. DAG size of input: 474 DAG size of output: 470 [2019-09-19 00:01:52,154 WARN L191 SmtUtils]: Spent 8.29 s on a formula simplification that was a NOOP. DAG size: 470 [2019-09-19 00:02:10,490 WARN L191 SmtUtils]: Spent 18.30 s on a formula simplification. DAG size of input: 479 DAG size of output: 472 [2019-09-19 00:02:18,800 WARN L191 SmtUtils]: Spent 8.31 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-19 00:02:37,033 WARN L191 SmtUtils]: Spent 18.23 s on a formula simplification. DAG size of input: 479 DAG size of output: 472 [2019-09-19 00:02:45,411 WARN L191 SmtUtils]: Spent 8.38 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-19 00:02:46,689 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 436 DAG size of output: 1 [2019-09-19 00:03:01,503 WARN L191 SmtUtils]: Spent 14.81 s on a formula simplification. DAG size of input: 438 DAG size of output: 437 [2019-09-19 00:03:08,890 WARN L191 SmtUtils]: Spent 7.39 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 00:03:16,324 WARN L191 SmtUtils]: Spent 7.43 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 00:03:23,782 WARN L191 SmtUtils]: Spent 7.46 s on a formula simplification that was a NOOP. DAG size: 437 [2019-09-19 00:03:50,774 WARN L191 SmtUtils]: Spent 26.96 s on a formula simplification. DAG size of input: 499 DAG size of output: 493 [2019-09-19 00:04:03,194 WARN L191 SmtUtils]: Spent 12.42 s on a formula simplification that was a NOOP. DAG size: 493 [2019-09-19 00:04:28,357 WARN L191 SmtUtils]: Spent 25.16 s on a formula simplification. DAG size of input: 497 DAG size of output: 497 [2019-09-19 00:04:28,728 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2019-09-19 00:04:29,598 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-09-19 00:04:29,739 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2019-09-19 00:04:29,975 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2019-09-19 00:04:32,211 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 471 DAG size of output: 35 [2019-09-19 00:04:32,548 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-19 00:04:32,828 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-19 00:04:33,133 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-19 00:04:33,235 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-09-19 00:04:33,857 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2019-09-19 00:04:34,049 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-19 00:04:34,523 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2019-09-19 00:04:34,736 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-09-19 00:04:34,878 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2019-09-19 00:04:35,114 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2019-09-19 00:04:35,675 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-19 00:04:35,801 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-09-19 00:04:36,315 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-19 00:04:47,048 WARN L191 SmtUtils]: Spent 10.60 s on a formula simplification. DAG size of input: 444 DAG size of output: 430 [2019-09-19 00:05:05,616 WARN L191 SmtUtils]: Spent 18.53 s on a formula simplification. DAG size of input: 474 DAG size of output: 470 [2019-09-19 00:05:13,930 WARN L191 SmtUtils]: Spent 8.31 s on a formula simplification that was a NOOP. DAG size: 470 [2019-09-19 00:05:32,676 WARN L191 SmtUtils]: Spent 18.72 s on a formula simplification. DAG size of input: 479 DAG size of output: 472 [2019-09-19 00:05:40,765 WARN L191 SmtUtils]: Spent 8.09 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-19 00:05:59,207 WARN L191 SmtUtils]: Spent 18.44 s on a formula simplification. DAG size of input: 479 DAG size of output: 472 [2019-09-19 00:06:07,265 WARN L191 SmtUtils]: Spent 8.06 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-19 00:06:22,063 WARN L191 SmtUtils]: Spent 14.76 s on a formula simplification. DAG size of input: 446 DAG size of output: 437 [2019-09-19 00:06:48,996 WARN L191 SmtUtils]: Spent 26.91 s on a formula simplification. DAG size of input: 500 DAG size of output: 494 [2019-09-19 00:07:00,932 WARN L191 SmtUtils]: Spent 11.93 s on a formula simplification that was a NOOP. DAG size: 494 [2019-09-19 00:07:25,154 WARN L191 SmtUtils]: Spent 24.22 s on a formula simplification. DAG size of input: 498 DAG size of output: 498 [2019-09-19 00:07:25,350 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2019-09-19 00:07:25,476 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2019-09-19 00:07:25,709 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2019-09-19 00:07:27,767 WARN L191 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 472 DAG size of output: 36 [2019-09-19 00:07:28,018 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-19 00:07:28,275 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-19 00:07:28,534 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-19 00:07:28,969 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-09-19 00:07:29,134 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-09-19 00:07:29,519 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 74 [2019-09-19 00:07:29,739 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2019-09-19 00:07:30,093 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2019-09-19 00:07:30,395 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-19 00:07:30,498 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-09-19 00:07:30,734 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-19 00:07:41,201 WARN L191 SmtUtils]: Spent 10.20 s on a formula simplification. DAG size of input: 444 DAG size of output: 430 [2019-09-19 00:08:00,914 WARN L191 SmtUtils]: Spent 19.67 s on a formula simplification. DAG size of input: 477 DAG size of output: 472 [2019-09-19 00:08:09,777 WARN L191 SmtUtils]: Spent 8.86 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-19 00:08:29,970 WARN L191 SmtUtils]: Spent 20.16 s on a formula simplification. DAG size of input: 482 DAG size of output: 474 [2019-09-19 00:08:38,853 WARN L191 SmtUtils]: Spent 8.88 s on a formula simplification that was a NOOP. DAG size: 474 [2019-09-19 00:08:58,579 WARN L191 SmtUtils]: Spent 19.72 s on a formula simplification. DAG size of input: 482 DAG size of output: 474 [2019-09-19 00:09:07,103 WARN L191 SmtUtils]: Spent 8.52 s on a formula simplification that was a NOOP. DAG size: 474 [2019-09-19 00:09:21,937 WARN L191 SmtUtils]: Spent 14.79 s on a formula simplification. DAG size of input: 446 DAG size of output: 437 [2019-09-19 00:09:53,220 WARN L191 SmtUtils]: Spent 31.26 s on a formula simplification. DAG size of input: 509 DAG size of output: 500 [2019-09-19 00:10:07,474 WARN L191 SmtUtils]: Spent 14.25 s on a formula simplification that was a NOOP. DAG size: 500 [2019-09-19 00:10:36,316 WARN L191 SmtUtils]: Spent 28.84 s on a formula simplification. DAG size of input: 504 DAG size of output: 504 [2019-09-19 00:10:36,501 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2019-09-19 00:10:36,633 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2019-09-19 00:10:36,853 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 35 [2019-09-19 00:10:39,026 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 471 DAG size of output: 35 [2019-09-19 00:10:39,310 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-19 00:10:39,576 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-19 00:10:39,850 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-19 00:10:40,329 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73 [2019-09-19 00:10:40,509 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-09-19 00:10:40,943 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2019-09-19 00:10:41,137 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2019-09-19 00:10:41,488 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2019-09-19 00:10:52,054 WARN L191 SmtUtils]: Spent 10.38 s on a formula simplification. DAG size of input: 444 DAG size of output: 430 [2019-09-19 00:11:11,284 WARN L191 SmtUtils]: Spent 19.20 s on a formula simplification. DAG size of input: 477 DAG size of output: 472 [2019-09-19 00:11:19,553 WARN L191 SmtUtils]: Spent 8.27 s on a formula simplification that was a NOOP. DAG size: 472 [2019-09-19 00:11:39,459 WARN L191 SmtUtils]: Spent 19.88 s on a formula simplification. DAG size of input: 482 DAG size of output: 474 [2019-09-19 00:11:48,225 WARN L191 SmtUtils]: Spent 8.76 s on a formula simplification that was a NOOP. DAG size: 474 [2019-09-19 00:12:08,841 WARN L191 SmtUtils]: Spent 20.61 s on a formula simplification. DAG size of input: 482 DAG size of output: 474