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 CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 02:51:04,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 02:51:04,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 02:51:04,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 02:51:04,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 02:51:04,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 02:51:04,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 02:51:04,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 02:51:04,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 02:51:04,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 02:51:04,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 02:51:04,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 02:51:04,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 02:51:04,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 02:51:04,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 02:51:04,826 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 02:51:04,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 02:51:04,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 02:51:04,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 02:51:04,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 02:51:04,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 02:51:04,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 02:51:04,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 02:51:04,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 02:51:04,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 02:51:04,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 02:51:04,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 02:51:04,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 02:51:04,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 02:51:04,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 02:51:04,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 02:51:04,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 02:51:04,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 02:51:04,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 02:51:04,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 02:51:04,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 02:51:04,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 02:51:04,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 02:51:04,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 02:51:04,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 02:51:04,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 02:51:04,848 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 [2019-10-14 02:51:04,872 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 02:51:04,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 02:51:04,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 02:51:04,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 02:51:04,875 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 02:51:04,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 02:51:04,875 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 02:51:04,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 02:51:04,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 02:51:04,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 02:51:04,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 02:51:04,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 02:51:04,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 02:51:04,878 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 02:51:04,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 02:51:04,878 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 02:51:04,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 02:51:04,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 02:51:04,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 02:51:04,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 02:51:04,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 02:51:04,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 02:51:04,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 02:51:04,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 02:51:04,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 02:51:04,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 02:51:04,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 02:51:04,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 02:51:04,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain 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 -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-14 02:51:05,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 02:51:05,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 02:51:05,178 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 02:51:05,179 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 02:51:05,180 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 02:51:05,181 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-10-14 02:51:05,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf18dfcbe/79c0cae52caf4514986688ed0d73e8cc/FLAGa1a7d1012 [2019-10-14 02:51:05,822 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 02:51:05,825 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2019-10-14 02:51:05,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf18dfcbe/79c0cae52caf4514986688ed0d73e8cc/FLAGa1a7d1012 [2019-10-14 02:51:06,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf18dfcbe/79c0cae52caf4514986688ed0d73e8cc [2019-10-14 02:51:06,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 02:51:06,173 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 02:51:06,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 02:51:06,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 02:51:06,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 02:51:06,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:06,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a57d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06, skipping insertion in model container [2019-10-14 02:51:06,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:06,190 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 02:51:06,248 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 02:51:06,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 02:51:06,775 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 02:51:06,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 02:51:06,913 INFO L192 MainTranslator]: Completed translation [2019-10-14 02:51:06,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06 WrapperNode [2019-10-14 02:51:06,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 02:51:06,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 02:51:06,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 02:51:06,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 02:51:06,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:06,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:06,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:06,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:06,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:07,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:07,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (1/1) ... [2019-10-14 02:51:07,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 02:51:07,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 02:51:07,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 02:51:07,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 02:51:07,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:51:06" (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 [2019-10-14 02:51:07,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 02:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 02:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 02:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 02:51:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 02:51:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 02:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 02:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 02:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 02:51:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 02:51:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 02:51:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 02:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 02:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 02:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 02:51:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 02:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 02:51:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 02:51:07,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 02:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-14 02:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 02:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 02:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 02:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 02:51:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 02:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 02:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 02:51:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 02:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 02:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 02:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 02:51:07,098 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 02:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 02:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 02:51:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 02:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 02:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 02:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 02:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 02:51:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 02:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 02:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 02:51:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 02:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 02:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 02:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 02:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 02:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 02:51:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 02:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 02:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 02:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 02:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 02:51:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 02:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 02:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 02:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-14 02:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 02:51:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 02:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 02:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 02:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 02:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 02:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 02:51:07,104 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 02:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 02:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 02:51:07,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 02:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 02:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 02:51:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 02:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 02:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 02:51:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 02:51:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 02:51:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 02:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 02:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 02:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 02:51:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 02:51:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 02:51:07,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 02:51:07,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 02:51:07,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 02:51:08,557 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 02:51:08,557 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 02:51:08,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:51:08 BoogieIcfgContainer [2019-10-14 02:51:08,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 02:51:08,559 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-14 02:51:08,559 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-14 02:51:08,559 INFO L275 PluginConnector]: Sifa initialized [2019-10-14 02:51:08,560 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:51:08" (1/1) ... [2019-10-14 02:51:08,561 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-10-14 02:51:08,586 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-14 02:51:08,586 INFO L169 IcfgInterpreter]: Building call graph [2019-10-14 02:51:08,596 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-14 02:51:08,610 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-14 02:51:08,612 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-14 02:51:19,461 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-14 02:51:21,226 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-14 02:51:21,367 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-14 02:51:21,518 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-14 02:51:21,661 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-14 02:51:21,904 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-14 02:51:21,940 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-14 02:51:22,004 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 542 for LOIs [2019-10-14 02:51:22,010 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 540 for LOIs [2019-10-14 02:51:22,853 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 572 [2019-10-14 02:51:23,530 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 572 [2019-10-14 02:51:23,925 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 604 [2019-10-14 02:51:24,232 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 604 [2019-10-14 02:51:24,574 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 607 [2019-10-14 02:51:24,872 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 607 [2019-10-14 02:51:25,241 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 178 [2019-10-14 02:51:25,711 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 178 [2019-10-14 02:51:25,944 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 603 [2019-10-14 02:51:28,434 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-10-14 02:51:28,437 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 139 for LOIs [2019-10-14 02:51:28,772 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification3_spec__1 with input of size 129 for LOIs [2019-10-14 02:51:28,786 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 140 for LOIs [2019-10-14 02:51:28,877 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-14 02:51:28,877 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-14 02:51:28,879 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 599#(and (= |#t~string55.offset| 0) (<= |#t~string22.offset| 0) (<= ~waterLevel~0 2) (<= 0 |#NULL.base|) (<= 0 |#t~string63.offset|) (<= |#t~string67.offset| 0) (<= 0 |#t~string20.offset|) (<= ~systemActive~0 1) (<= 0 |#t~string52.offset|) (<= ~head~0.offset 0) (= |#t~string46.offset| 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string46.offset|) (= |#t~string52.offset| 0) (= |#NULL.base| 0) (= |#t~string71.offset| 0) (<= 0 |#t~string51.offset|) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= 0 |#t~string45.offset|) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string44.offset|) (<= 0 |#t~string10.offset|) (= |#t~string51.offset| 0) (<= |#t~string53.offset| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |#t~string18.offset| 0) (<= |#t~string45.offset| 0) (<= |#t~string65.offset| 0) (<= 0 |#t~string43.offset|) (= |#t~string8.offset| 0) (= |#t~string20.offset| 0) (<= |#t~string14.offset| 0) (= |#t~string56.offset| 0) (<= 0 |#t~string53.offset|) (= |#t~string42.offset| 0) (= |#t~string67.offset| 0) (= |#t~string14.offset| 0) (<= 0 |#NULL.offset|) (= ~head~0.base 0) (<= ~cleanupTimeShifts~0 4) (<= ~methaneLevelCritical~0 0) (<= 0 ~pumpRunning~0) (= ~cleanupTimeShifts~0 4) (<= 0 |#t~string16.offset|) (<= 0 |#t~string47.offset|) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (= 2 ~waterLevel~0) (= |#t~string18.offset| 0) (<= 1 ~systemActive~0) (<= 0 |#t~string71.offset|) (<= |#t~string46.offset| 0) (= |#t~string16.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (= |#t~string69.offset| 0) (= |#NULL.offset| 0) (= ~pumpRunning~0 0) (= |#t~string53.offset| 0) (<= |#t~string8.offset| 0) (<= ~head~0.base 0) (= |#t~string47.offset| 0) (<= 0 ~head~0.offset) (= |#t~string10.offset| 0) (<= 0 |#t~string22.offset|) (<= |#t~string52.offset| 0) (<= |#t~string16.offset| 0) (= |#t~string12.offset| 0) (<= ~waterLevel~0 2147483647) (<= 0 |#t~string18.offset|) (<= |#t~string55.offset| 0) (= |#t~string43.offset| 0) (<= |#t~string56.offset| 0) (<= |#t~string51.offset| 0) (= |#t~string65.offset| 0) (= 0 ~methaneLevelCritical~0) (<= 0 |#t~string69.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (= ~head~0.offset 0) (<= |#t~string71.offset| 0) (= |#t~string63.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string47.offset| 0) (<= 0 |#t~string65.offset|) (<= 0 |#t~string56.offset|) (<= 2 ~waterLevel~0) (= |#t~string44.offset| 0) (<= |#t~string42.offset| 0) (= |#t~string54.offset| 0) (<= 0 |#t~string54.offset|) (<= |#t~string69.offset| 0) (<= |#t~string43.offset| 0) (<= 0 |#t~string14.offset|) (<= 0 |#t~string12.offset|) (= |#t~string22.offset| 0) (<= |#t~string54.offset| 0) (<= |#t~string12.offset| 0) (= |#t~string45.offset| 0) (<= 0 |#t~string55.offset|) (<= |#t~string20.offset| 0)) [2019-10-14 02:51:28,895 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-14 02:51:28,896 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-14 02:51:28,898 INFO L168 Benchmark]: Toolchain (without parser) took 22724.84 ms. Allocated memory was 141.0 MB in the beginning and 583.0 MB in the end (delta: 442.0 MB). Free memory was 101.8 MB in the beginning and 544.5 MB in the end (delta: -442.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 02:51:28,899 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 02:51:28,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.28 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 101.8 MB in the beginning and 169.6 MB in the end (delta: -67.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-10-14 02:51:28,908 INFO L168 Benchmark]: Boogie Preprocessor took 97.83 ms. Allocated memory is still 202.4 MB. Free memory was 169.6 MB in the beginning and 165.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-10-14 02:51:28,913 INFO L168 Benchmark]: RCFGBuilder took 1545.65 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 145.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. [2019-10-14 02:51:28,915 INFO L168 Benchmark]: Sifa took 20337.09 ms. Allocated memory was 234.9 MB in the beginning and 583.0 MB in the end (delta: 348.1 MB). Free memory was 145.8 MB in the beginning and 544.5 MB in the end (delta: -398.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 02:51:28,922 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 141.0 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.28 ms. Allocated memory was 141.0 MB in the beginning and 202.4 MB in the end (delta: 61.3 MB). Free memory was 101.8 MB in the beginning and 169.6 MB in the end (delta: -67.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.83 ms. Allocated memory is still 202.4 MB. Free memory was 169.6 MB in the beginning and 165.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1545.65 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 165.0 MB in the beginning and 145.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 79.5 MB. Max. memory is 7.1 GB. * Sifa took 20337.09 ms. Allocated memory was 234.9 MB in the beginning and 583.0 MB in the end (delta: 348.1 MB). Free memory was 145.8 MB in the beginning and 544.5 MB in the end (delta: -398.7 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]: 20294, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 182, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 125, TOOLS_POST_TIME[ms]: 12771, TOOLS_POST_CALL_APPLICATIONS: 50, TOOLS_POST_CALL_TIME[ms]: 169, TOOLS_POST_RETURN_APPLICATIONS: 43, TOOLS_POST_RETURN_TIME[ms]: 74, TOOLS_QUANTIFIERELIM_APPLICATIONS: 217, TOOLS_QUANTIFIERELIM_TIME[ms]: 12908, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 12675, FLUID_QUERY_TIME[ms]: 14, FLUID_QUERIES: 184, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 64, DOMAIN_JOIN_TIME[ms]: 6679, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 272, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 16, DOMAIN_ISBOTTOM_APPLICATIONS: 38, DOMAIN_ISBOTTOM_TIME[ms]: 144, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5407, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5407, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 43, CALL_SUMMARIZER_CACHE_MISSES: 23, CALL_SUMMARIZER_OVERALL_TIME[ms]: 13394, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 13393, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 6, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 37, DAG_COMPRESSION_PROCESSED_NODES: 419, DAG_COMPRESSION_RETAINED_NODES: 182 - UnprovableResult [Line: 786]: 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 599#(and (= |#t~string55.offset| 0) (<= |#t~string22.offset| 0) (<= ~waterLevel~0 2) (<= 0 |#NULL.base|) (<= 0 |#t~string63.offset|) (<= |#t~string67.offset| 0) (<= 0 |#t~string20.offset|) (<= ~systemActive~0 1) (<= 0 |#t~string52.offset|) (<= ~head~0.offset 0) (= |#t~string46.offset| 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string46.offset|) (= |#t~string52.offset| 0) (= |#NULL.base| 0) (= |#t~string71.offset| 0) (<= 0 |#t~string51.offset|) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= 0 |#t~string45.offset|) (<= 0 |#t~string42.offset|) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string44.offset|) (<= 0 |#t~string10.offset|) (= |#t~string51.offset| 0) (<= |#t~string53.offset| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= |#t~string18.offset| 0) (<= |#t~string45.offset| 0) (<= |#t~string65.offset| 0) (<= 0 |#t~string43.offset|) (= |#t~string8.offset| 0) (= |#t~string20.offset| 0) (<= |#t~string14.offset| 0) (= |#t~string56.offset| 0) (<= 0 |#t~string53.offset|) (= |#t~string42.offset| 0) (= |#t~string67.offset| 0) (= |#t~string14.offset| 0) (<= 0 |#NULL.offset|) (= ~head~0.base 0) (<= ~cleanupTimeShifts~0 4) (<= ~methaneLevelCritical~0 0) (<= 0 ~pumpRunning~0) (= ~cleanupTimeShifts~0 4) (<= 0 |#t~string16.offset|) (<= 0 |#t~string47.offset|) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (= 2 ~waterLevel~0) (= |#t~string18.offset| 0) (<= 1 ~systemActive~0) (<= 0 |#t~string71.offset|) (<= |#t~string46.offset| 0) (= |#t~string16.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (= |#t~string69.offset| 0) (= |#NULL.offset| 0) (= ~pumpRunning~0 0) (= |#t~string53.offset| 0) (<= |#t~string8.offset| 0) (<= ~head~0.base 0) (= |#t~string47.offset| 0) (<= 0 ~head~0.offset) (= |#t~string10.offset| 0) (<= 0 |#t~string22.offset|) (<= |#t~string52.offset| 0) (<= |#t~string16.offset| 0) (= |#t~string12.offset| 0) (<= ~waterLevel~0 2147483647) (<= 0 |#t~string18.offset|) (<= |#t~string55.offset| 0) (= |#t~string43.offset| 0) (<= |#t~string56.offset| 0) (<= |#t~string51.offset| 0) (= |#t~string65.offset| 0) (= 0 ~methaneLevelCritical~0) (<= 0 |#t~string69.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (= ~head~0.offset 0) (<= |#t~string71.offset| 0) (= |#t~string63.offset| 0) (<= |#t~string44.offset| 0) (<= |#t~string47.offset| 0) (<= 0 |#t~string65.offset|) (<= 0 |#t~string56.offset|) (<= 2 ~waterLevel~0) (= |#t~string44.offset| 0) (<= |#t~string42.offset| 0) (= |#t~string54.offset| 0) (<= 0 |#t~string54.offset|) (<= |#t~string69.offset| 0) (<= |#t~string43.offset| 0) (<= 0 |#t~string14.offset|) (<= 0 |#t~string12.offset|) (= |#t~string22.offset| 0) (<= |#t~string54.offset| 0) (<= |#t~string12.offset| 0) (= |#t~string45.offset| 0) (<= 0 |#t~string55.offset|) (<= |#t~string20.offset| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...