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_spec3_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 23:10:33,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 23:10:33,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 23:10:33,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 23:10:33,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 23:10:33,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 23:10:33,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 23:10:33,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 23:10:33,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 23:10:33,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 23:10:33,750 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 23:10:33,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 23:10:33,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 23:10:33,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 23:10:33,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 23:10:33,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 23:10:33,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 23:10:33,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 23:10:33,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 23:10:33,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 23:10:33,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 23:10:33,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 23:10:33,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 23:10:33,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 23:10:33,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 23:10:33,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 23:10:33,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 23:10:33,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 23:10:33,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 23:10:33,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 23:10:33,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 23:10:33,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 23:10:33,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 23:10:33,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 23:10:33,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 23:10:33,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 23:10:33,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 23:10:33,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 23:10:33,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 23:10:33,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 23:10:33,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 23:10:33,777 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 23:10:33,792 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 23:10:33,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 23:10:33,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 23:10:33,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 23:10:33,794 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 23:10:33,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 23:10:33,794 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 23:10:33,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 23:10:33,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 23:10:33,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 23:10:33,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 23:10:33,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 23:10:33,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 23:10:33,796 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 23:10:33,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 23:10:33,796 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 23:10:33,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 23:10:33,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 23:10:33,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 23:10:33,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 23:10:33,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 23:10:33,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 23:10:33,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 23:10:33,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 23:10:33,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 23:10:33,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 23:10:33,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 23:10:33,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 23:10:33,799 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 23:10:33,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 23:10:33,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 23:10:33,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 23:10:33,871 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 23:10:33,871 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 23:10:33,873 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2019-09-18 23:10:33,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2291635ed/1f10660ec4f441f3a4b47aebf9b29ff0/FLAG0b2ec836f [2019-09-18 23:10:34,478 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 23:10:34,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2019-09-18 23:10:34,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2291635ed/1f10660ec4f441f3a4b47aebf9b29ff0/FLAG0b2ec836f [2019-09-18 23:10:34,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2291635ed/1f10660ec4f441f3a4b47aebf9b29ff0 [2019-09-18 23:10:34,742 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 23:10:34,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 23:10:34,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 23:10:34,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 23:10:34,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 23:10:34,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:10:34" (1/1) ... [2019-09-18 23:10:34,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@922088c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:34, skipping insertion in model container [2019-09-18 23:10:34,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:10:34" (1/1) ... [2019-09-18 23:10:34,757 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 23:10:34,815 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 23:10:35,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 23:10:35,287 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 23:10:35,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 23:10:35,403 INFO L192 MainTranslator]: Completed translation [2019-09-18 23:10:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35 WrapperNode [2019-09-18 23:10:35,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 23:10:35,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 23:10:35,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 23:10:35,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 23:10:35,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (1/1) ... [2019-09-18 23:10:35,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 23:10:35,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 23:10:35,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 23:10:35,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 23:10:35,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:10:35" (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 23:10:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 23:10:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 23:10:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-18 23:10:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-18 23:10:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-18 23:10:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-18 23:10:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-18 23:10:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-18 23:10:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-18 23:10:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-18 23:10:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-18 23:10:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-18 23:10:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-18 23:10:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-18 23:10:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-18 23:10:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-18 23:10:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-18 23:10:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-18 23:10:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-18 23:10:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-18 23:10:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-18 23:10:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-18 23:10:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-18 23:10:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-18 23:10:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-18 23:10:35,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-18 23:10:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 23:10:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-18 23:10:35,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-18 23:10:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-18 23:10:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-18 23:10:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-18 23:10:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-18 23:10:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-18 23:10:35,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-18 23:10:35,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-18 23:10:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-18 23:10:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-18 23:10:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-18 23:10:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-18 23:10:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-18 23:10:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 23:10:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-18 23:10:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-18 23:10:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-18 23:10:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-18 23:10:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-18 23:10:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-18 23:10:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-18 23:10:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-18 23:10:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-18 23:10:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 23:10:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-18 23:10:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-18 23:10:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-18 23:10:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-18 23:10:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-18 23:10:35,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 23:10:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 23:10:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 23:10:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-18 23:10:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 23:10:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-18 23:10:35,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-18 23:10:35,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 23:10:37,204 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 23:10:37,204 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-18 23:10:37,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:10:37 BoogieIcfgContainer [2019-09-18 23:10:37,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 23:10:37,206 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 23:10:37,206 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 23:10:37,207 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 23:10:37,208 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:10:37" (1/1) ... [2019-09-18 23:10:37,208 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 23:10:37,234 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 23:10:37,234 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 23:10:37,243 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 23:10:37,253 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 23:10:37,255 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 23:10:49,733 WARN L191 SmtUtils]: Spent 12.40 s on a formula simplification that was a NOOP. DAG size: 441 [2019-09-18 23:11:01,413 WARN L191 SmtUtils]: Spent 11.68 s on a formula simplification that was a NOOP. DAG size: 441 [2019-09-18 23:11:23,692 WARN L191 SmtUtils]: Spent 13.73 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-18 23:11:25,332 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-18 23:11:29,249 WARN L191 SmtUtils]: Spent 3.91 s on a formula simplification. DAG size of input: 472 DAG size of output: 422 [2019-09-18 23:11:29,258 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 428 for LOIs [2019-09-18 23:11:31,067 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 23:11:32,893 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 23:11:34,679 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 23:11:36,521 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 23:11:38,354 WARN L191 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-18 23:11:40,230 WARN L191 SmtUtils]: Spent 1.87 s on a formula simplification that was a NOOP. DAG size: 426 [2019-09-18 23:11:42,053 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 23:11:43,862 WARN L191 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 422 [2019-09-18 23:11:43,869 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 428 for LOIs [2019-09-18 23:11:43,874 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 428 for LOIs [2019-09-18 23:11:47,554 WARN L191 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 431 DAG size of output: 425 [2019-09-18 23:11:49,343 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 425 [2019-09-18 23:12:00,331 WARN L191 SmtUtils]: Spent 10.98 s on a formula simplification. DAG size of input: 446 DAG size of output: 445 [2019-09-18 23:12:05,672 WARN L191 SmtUtils]: Spent 5.34 s on a formula simplification that was a NOOP. DAG size: 445 [2019-09-18 23:12:16,167 WARN L191 SmtUtils]: Spent 10.46 s on a formula simplification. DAG size of input: 433 DAG size of output: 428 [2019-09-18 23:12:21,326 WARN L191 SmtUtils]: Spent 5.16 s on a formula simplification that was a NOOP. DAG size: 428 [2019-09-18 23:12:39,972 WARN L191 SmtUtils]: Spent 18.62 s on a formula simplification. DAG size of input: 462 DAG size of output: 459 [2019-09-18 23:12:48,700 WARN L191 SmtUtils]: Spent 8.73 s on a formula simplification that was a NOOP. DAG size: 459 [2019-09-18 23:12:50,152 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 442 DAG size of output: 1 [2019-09-18 23:13:06,775 WARN L191 SmtUtils]: Spent 16.55 s on a formula simplification. DAG size of input: 443 DAG size of output: 441 [2019-09-18 23:13:15,095 WARN L191 SmtUtils]: Spent 8.32 s on a formula simplification that was a NOOP. DAG size: 441 [2019-09-18 23:13:31,992 WARN L191 SmtUtils]: Spent 16.88 s on a formula simplification. DAG size of input: 457 DAG size of output: 450 [2019-09-18 23:13:40,320 WARN L191 SmtUtils]: Spent 8.33 s on a formula simplification that was a NOOP. DAG size: 450 [2019-09-18 23:13:51,203 WARN L191 SmtUtils]: Spent 10.83 s on a formula simplification. DAG size of input: 438 DAG size of output: 431 [2019-09-18 23:13:56,478 WARN L191 SmtUtils]: Spent 5.27 s on a formula simplification that was a NOOP. DAG size: 431 [2019-09-18 23:14:07,468 WARN L191 SmtUtils]: Spent 10.98 s on a formula simplification. DAG size of input: 445 DAG size of output: 430 [2019-09-18 23:14:12,789 WARN L191 SmtUtils]: Spent 5.32 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-18 23:14:20,570 WARN L191 SmtUtils]: Spent 7.74 s on a formula simplification. DAG size of input: 438 DAG size of output: 425 [2019-09-18 23:14:22,454 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 425 [2019-09-18 23:14:34,630 WARN L191 SmtUtils]: Spent 12.17 s on a formula simplification. DAG size of input: 451 DAG size of output: 435 [2019-09-18 23:14:39,870 WARN L191 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-18 23:14:45,185 WARN L191 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-18 23:14:50,427 WARN L191 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 435 [2019-09-18 23:15:00,650 WARN L191 SmtUtils]: Spent 10.21 s on a formula simplification. DAG size of input: 434 DAG size of output: 427 [2019-09-18 23:15:05,704 WARN L191 SmtUtils]: Spent 5.05 s on a formula simplification that was a NOOP. DAG size: 427 [2019-09-18 23:15:24,570 WARN L191 SmtUtils]: Spent 18.86 s on a formula simplification. DAG size of input: 461 DAG size of output: 448 [2019-09-18 23:15:33,038 WARN L191 SmtUtils]: Spent 8.47 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 23:15:38,110 WARN L191 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 427 [2019-09-18 23:15:46,461 WARN L191 SmtUtils]: Spent 8.35 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 23:15:54,882 WARN L191 SmtUtils]: Spent 8.42 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 23:16:03,317 WARN L191 SmtUtils]: Spent 8.43 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 23:16:11,733 WARN L191 SmtUtils]: Spent 8.41 s on a formula simplification that was a NOOP. DAG size: 448 [2019-09-18 23:16:35,174 WARN L191 SmtUtils]: Spent 23.43 s on a formula simplification. DAG size of input: 459 DAG size of output: 443 [2019-09-18 23:16:41,758 WARN L191 SmtUtils]: Spent 6.58 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-18 23:16:48,354 WARN L191 SmtUtils]: Spent 6.57 s on a formula simplification that was a NOOP. DAG size: 440 [2019-09-18 23:16:54,968 WARN L191 SmtUtils]: Spent 6.61 s on a formula simplification that was a NOOP. DAG size: 440 [2019-09-18 23:17:00,591 WARN L191 SmtUtils]: Spent 5.58 s on a formula simplification. DAG size of input: 445 DAG size of output: 432 [2019-09-18 23:17:02,376 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 432 [2019-09-18 23:17:09,133 WARN L191 SmtUtils]: Spent 6.71 s on a formula simplification. DAG size of input: 450 DAG size of output: 427 [2019-09-18 23:17:10,569 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 427 [2019-09-18 23:17:18,821 WARN L191 SmtUtils]: Spent 8.22 s on a formula simplification. DAG size of input: 459 DAG size of output: 430 [2019-09-18 23:17:20,264 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 430 [2019-09-18 23:17:30,645 WARN L191 SmtUtils]: Spent 10.38 s on a formula simplification. DAG size of input: 458 DAG size of output: 436 [2019-09-18 23:17:32,949 WARN L191 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 436 [2019-09-18 23:17:53,549 WARN L191 SmtUtils]: Spent 20.60 s on a formula simplification. DAG size of input: 455 DAG size of output: 443 [2019-09-18 23:18:07,120 WARN L191 SmtUtils]: Spent 13.44 s on a formula simplification. DAG size of input: 448 DAG size of output: 443 [2019-09-18 23:18:13,812 WARN L191 SmtUtils]: Spent 6.69 s on a formula simplification that was a NOOP. DAG size: 443 [2019-09-18 23:18:22,556 WARN L191 SmtUtils]: Spent 8.37 s on a formula simplification that was a NOOP. DAG size: 450 [2019-09-18 23:18:23,289 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2019-09-18 23:18:23,651 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-09-18 23:18:24,502 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-09-18 23:18:24,505 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 7 for LOIs [2019-09-18 23:18:24,764 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-09-18 23:18:24,881 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification3_spec__1 with input of size 1 for LOIs [2019-09-18 23:18:24,934 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 17 for LOIs [2019-09-18 23:18:24,952 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-18 23:18:24,952 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-18 23:18:24,954 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 564#(and (= 0 ~methaneLevelCritical~0) (= 2 ~waterLevel~0) (= ~pumpRunning~0 0)) [2019-09-18 23:18:24,966 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-18 23:18:24,966 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-18 23:18:24,967 INFO L168 Benchmark]: Toolchain (without parser) took 470224.05 ms. Allocated memory was 133.7 MB in the beginning and 147.8 MB in the end (delta: 14.2 MB). Free memory was 88.7 MB in the beginning and 90.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-09-18 23:18:24,968 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-18 23:18:24,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.12 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 165.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2019-09-18 23:18:24,970 INFO L168 Benchmark]: Boogie Preprocessor took 96.86 ms. Allocated memory is still 200.3 MB. Free memory was 165.7 MB in the beginning and 161.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-18 23:18:24,971 INFO L168 Benchmark]: RCFGBuilder took 1703.75 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 161.3 MB in the beginning and 147.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-09-18 23:18:24,972 INFO L168 Benchmark]: Sifa took 467759.97 ms. Allocated memory was 226.0 MB in the beginning and 147.8 MB in the end (delta: -78.1 MB). Free memory was 147.2 MB in the beginning and 90.0 MB in the end (delta: 57.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-18 23:18:24,975 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 660.12 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.5 MB in the beginning and 165.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.86 ms. Allocated memory is still 200.3 MB. Free memory was 165.7 MB in the beginning and 161.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1703.75 ms. Allocated memory was 200.3 MB in the beginning and 226.0 MB in the end (delta: 25.7 MB). Free memory was 161.3 MB in the beginning and 147.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. * Sifa took 467759.97 ms. Allocated memory was 226.0 MB in the beginning and 147.8 MB in the end (delta: -78.1 MB). Free memory was 147.2 MB in the beginning and 90.0 MB in the end (delta: 57.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 467721, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 222, DAG_INTERPRETER_EARLY_EXITS: 3, TOOLS_POST_APPLICATIONS: 151, TOOLS_POST_TIME[ms]: 126, TOOLS_POST_CALL_APPLICATIONS: 61, TOOLS_POST_CALL_TIME[ms]: 208, TOOLS_POST_RETURN_APPLICATIONS: 54, TOOLS_POST_RETURN_TIME[ms]: 27998, TOOLS_QUANTIFIERELIM_APPLICATIONS: 265, TOOLS_QUANTIFIERELIM_TIME[ms]: 28212, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 27835, FLUID_QUERY_TIME[ms]: 12, FLUID_QUERIES: 224, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 74, DOMAIN_JOIN_TIME[ms]: 425037, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 51, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 43, DOMAIN_ISSUBSETEQ_APPLICATIONS: 56, DOMAIN_ISSUBSETEQ_TIME[ms]: 297, DOMAIN_ISBOTTOM_APPLICATIONS: 36, DOMAIN_ISBOTTOM_TIME[ms]: 277, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 400244, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 400243, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 54, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 394926, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 27, DAG_COMPRESSION_PROCESSED_NODES: 358, DAG_COMPRESSION_RETAINED_NODES: 195 - UnprovableResult [Line: 922]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 564#(and (= 0 ~methaneLevelCritical~0) (= 2 ~waterLevel~0) (= ~pumpRunning~0 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...