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_spec2_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 06:55:54,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 06:55:54,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 06:55:54,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 06:55:54,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 06:55:54,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 06:55:54,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 06:55:54,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 06:55:54,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 06:55:54,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 06:55:54,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 06:55:54,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 06:55:54,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 06:55:54,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 06:55:54,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 06:55:54,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 06:55:54,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 06:55:54,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 06:55:54,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 06:55:54,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 06:55:54,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 06:55:54,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 06:55:54,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 06:55:54,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 06:55:54,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 06:55:54,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 06:55:54,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 06:55:54,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 06:55:54,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 06:55:54,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 06:55:54,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 06:55:54,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 06:55:54,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 06:55:54,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 06:55:54,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 06:55:54,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 06:55:54,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 06:55:54,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 06:55:54,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 06:55:54,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 06:55:54,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 06:55:54,967 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 [2019-10-15 06:55:55,001 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 06:55:55,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 06:55:55,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 06:55:55,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 06:55:55,005 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 06:55:55,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 06:55:55,006 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 06:55:55,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 06:55:55,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 06:55:55,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 06:55:55,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 06:55:55,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 06:55:55,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 06:55:55,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 06:55:55,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 06:55:55,009 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 06:55:55,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 06:55:55,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 06:55:55,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 06:55:55,009 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 06:55:55,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 06:55:55,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 06:55:55,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 06:55:55,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 06:55:55,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 06:55:55,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 06:55:55,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 06:55:55,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 06:55:55,011 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 [2019-10-15 06:55:55,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 06:55:55,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 06:55:55,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 06:55:55,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 06:55:55,314 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 06:55:55,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-10-15 06:55:55,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577c6d592/892f379681ac43f3b02f0af60f879ab2/FLAG29d35dd58 [2019-10-15 06:55:55,920 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 06:55:55,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2019-10-15 06:55:55,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577c6d592/892f379681ac43f3b02f0af60f879ab2/FLAG29d35dd58 [2019-10-15 06:55:56,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/577c6d592/892f379681ac43f3b02f0af60f879ab2 [2019-10-15 06:55:56,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 06:55:56,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 06:55:56,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 06:55:56,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 06:55:56,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 06:55:56,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7184d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56, skipping insertion in model container [2019-10-15 06:55:56,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,246 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 06:55:56,292 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 06:55:56,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 06:55:56,728 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 06:55:56,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 06:55:56,851 INFO L192 MainTranslator]: Completed translation [2019-10-15 06:55:56,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56 WrapperNode [2019-10-15 06:55:56,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 06:55:56,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 06:55:56,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 06:55:56,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 06:55:56,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (1/1) ... [2019-10-15 06:55:56,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 06:55:56,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 06:55:56,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 06:55:56,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 06:55:56,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:55:56" (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 [2019-10-15 06:55:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 06:55:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 06:55:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 06:55:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 06:55:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 06:55:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 06:55:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 06:55:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 06:55:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 06:55:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 06:55:57,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 06:55:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 06:55:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 06:55:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 06:55:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 06:55:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 06:55:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 06:55:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 06:55:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 06:55:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 06:55:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 06:55:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 06:55:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 06:55:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 06:55:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 06:55:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 06:55:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 06:55:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 06:55:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 06:55:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 06:55:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 06:55:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 06:55:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 06:55:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 06:55:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 06:55:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 06:55:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 06:55:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 06:55:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 06:55:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 06:55:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 06:55:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 06:55:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 06:55:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 06:55:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 06:55:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 06:55:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 06:55:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 06:55:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 06:55:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 06:55:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 06:55:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 06:55:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 06:55:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 06:55:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 06:55:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 06:55:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 06:55:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 06:55:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 06:55:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 06:55:58,703 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 06:55:58,704 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 06:55:58,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:55:58 BoogieIcfgContainer [2019-10-15 06:55:58,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 06:55:58,709 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-15 06:55:58,710 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-15 06:55:58,710 INFO L275 PluginConnector]: Sifa initialized [2019-10-15 06:55:58,711 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:55:58" (1/1) ... [2019-10-15 06:55:58,712 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 [2019-10-15 06:55:58,756 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-15 06:55:58,756 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 06:55:58,771 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 06:55:58,786 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 06:55:58,788 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 06:56:08,795 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 06:56:10,703 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 06:56:10,845 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 06:56:10,987 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 06:56:11,149 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 06:56:11,445 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 06:56:11,464 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 550 for LOIs [2019-10-15 06:56:11,520 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 548 for LOIs [2019-10-15 06:56:11,539 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 548 for LOIs [2019-10-15 06:56:11,796 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 06:56:12,009 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-15 06:56:12,716 WARN L191 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-15 06:56:13,410 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-15 06:56:13,865 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-15 06:56:14,289 WARN L191 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 576 [2019-10-15 06:56:14,759 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 193 [2019-10-15 06:56:15,048 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 06:56:15,212 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 176 [2019-10-15 06:56:15,339 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 186 [2019-10-15 06:56:15,762 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 06:56:16,102 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-15 06:56:16,275 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-15 06:56:16,497 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 610 DAG size of output: 610 [2019-10-15 06:56:16,937 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 632 DAG size of output: 631 [2019-10-15 06:56:18,224 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 626 [2019-10-15 06:56:18,745 WARN L191 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 610 [2019-10-15 06:56:19,339 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2019-10-15 06:56:19,706 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 176 [2019-10-15 06:56:19,970 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-10-15 06:56:20,425 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-15 06:56:20,556 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 600 [2019-10-15 06:56:20,715 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 610 DAG size of output: 610 [2019-10-15 06:56:21,107 WARN L191 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 631 [2019-10-15 06:56:21,778 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-15 06:56:22,027 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 188 [2019-10-15 06:56:22,507 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 627 DAG size of output: 626 [2019-10-15 06:56:22,938 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 617 DAG size of output: 610 [2019-10-15 06:56:23,302 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-10-15 06:56:23,306 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 142 for LOIs [2019-10-15 06:56:23,622 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification2_spec__2 with input of size 136 for LOIs [2019-10-15 06:56:23,629 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 149 for LOIs [2019-10-15 06:56:23,691 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 06:56:23,703 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-15 06:56:23,703 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-15 06:56:23,705 INFO L168 Benchmark]: Toolchain (without parser) took 27475.31 ms. Allocated memory was 138.4 MB in the beginning and 761.8 MB in the end (delta: 623.4 MB). Free memory was 100.3 MB in the beginning and 693.8 MB in the end (delta: -593.5 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-10-15 06:56:23,706 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 06:56:23,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.37 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 170.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2019-10-15 06:56:23,713 INFO L168 Benchmark]: Boogie Preprocessor took 96.13 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 166.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-10-15 06:56:23,714 INFO L168 Benchmark]: RCFGBuilder took 1759.52 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.2 MB in the beginning and 144.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-10-15 06:56:23,715 INFO L168 Benchmark]: Sifa took 24993.97 ms. Allocated memory was 235.9 MB in the beginning and 761.8 MB in the end (delta: 525.9 MB). Free memory was 144.8 MB in the beginning and 693.8 MB in the end (delta: -549.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 06:56:23,718 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 621.37 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 99.9 MB in the beginning and 170.3 MB in the end (delta: -70.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.13 ms. Allocated memory is still 202.9 MB. Free memory was 170.3 MB in the beginning and 166.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1759.52 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.2 MB in the beginning and 144.8 MB in the end (delta: 21.4 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * Sifa took 24993.97 ms. Allocated memory was 235.9 MB in the beginning and 761.8 MB in the end (delta: 525.9 MB). Free memory was 144.8 MB in the beginning and 693.8 MB in the end (delta: -549.0 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]: 24936, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 289, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 196, TOOLS_POST_TIME[ms]: 12118, TOOLS_POST_CALL_APPLICATIONS: 80, TOOLS_POST_CALL_TIME[ms]: 304, TOOLS_POST_RETURN_APPLICATIONS: 73, TOOLS_POST_RETURN_TIME[ms]: 160, TOOLS_QUANTIFIERELIM_APPLICATIONS: 348, TOOLS_QUANTIFIERELIM_TIME[ms]: 12431, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 11968, FLUID_QUERY_TIME[ms]: 18, FLUID_QUERIES: 299, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 83, DOMAIN_JOIN_TIME[ms]: 11613, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 296, DOMAIN_ISSUBSETEQ_APPLICATIONS: 10, DOMAIN_ISSUBSETEQ_TIME[ms]: 69, DOMAIN_ISBOTTOM_APPLICATIONS: 42, DOMAIN_ISBOTTOM_TIME[ms]: 193, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5805, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5804, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 10, CALL_SUMMARIZER_APPLICATIONS: 73, CALL_SUMMARIZER_CACHE_MISSES: 28, CALL_SUMMARIZER_OVERALL_TIME[ms]: 12874, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 12873, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 9, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 5, DAG_COMPRESSION_TIME[ms]: 31, DAG_COMPRESSION_PROCESSED_NODES: 481, DAG_COMPRESSION_RETAINED_NODES: 250 - UnprovableResult [Line: 983]: 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 958#(and (not (= 0 ~methAndRunningLastTime~0)) (<= |#t~string58.offset| 0) (<= |#t~string33.offset| 0) (= |#t~string61.offset| 0) (<= 0 |#NULL.base|) (= |#t~string27.offset| 0) (<= 0 |#t~string63.offset|) (<= |#t~string67.offset| 0) (= |#t~string2.offset| 0) (<= ~systemActive~0 1) (= |#t~string72.offset| 0) (<= ~head~0.offset 0) (= |#t~string62.offset| 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string60.offset|) (= |#NULL.base| 0) (= |#t~string71.offset| 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (<= 0 ~head~0.base) (<= 0 |#t~string6.offset|) (= |#t~string25.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= 0 |#t~string10.offset|) (<= 0 |#t~string61.offset|) (= |#t~string8.offset| 0) (= |#t~string29.offset| 0) (= |#t~string4.offset| 0) (= |#t~string67.offset| 0) (<= 0 |#t~string33.offset|) (<= 0 |#NULL.offset|) (<= |#t~string60.offset| 0) (= ~head~0.base 0) (<= ~cleanupTimeShifts~0 4) (not (= 0 ~methaneLevelCritical~0)) (= ~cleanupTimeShifts~0 4) (= |#t~string68.offset| 0) (<= ~methAndRunningLastTime~0 1) (<= ~methaneLevelCritical~0 2147483647) (= |#t~string33.offset| 0) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 1 ~systemActive~0) (<= 0 |#t~string71.offset|) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string10.offset| 0) (= |#t~string31.offset| 0) (= |#t~string70.offset| 0) (<= |#t~string68.offset| 0) (= |#t~string69.offset| 0) (<= |#t~string25.offset| 0) (= |#NULL.offset| 0) (<= |#t~string4.offset| 0) (= |#t~string23.offset| 0) (<= |#t~string8.offset| 0) (= |#t~string21.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= 0 |#t~string70.offset|) (<= |#t~string31.offset| 0) (= |#t~string10.offset| 0) (not (= ~pumpRunning~0 0)) (<= |#t~string70.offset| 0) (<= 0 |#t~string59.offset|) (<= 0 |#t~string21.offset|) (<= 0 |#t~string69.offset|) (<= 0 |#t~string8.offset|) (<= |#NULL.offset| 0) (= ~head~0.offset 0) (<= |#t~string71.offset| 0) (<= |#t~string6.offset| 0) (= |#t~string63.offset| 0) (<= ~pumpRunning~0 2147483647) (<= 0 |#t~string2.offset|) (<= 0 (+ ~methaneLevelCritical~0 2147483648)) (<= |#t~string27.offset| 0) (<= |#t~string21.offset| 0) (<= |#t~string61.offset| 0) (<= |#t~string59.offset| 0) (<= 0 |#t~string23.offset|) (= ~systemActive~0 1) (= |#t~string58.offset| 0) (<= |#t~string69.offset| 0) (<= 0 |#t~string72.offset|) (= |#t~string19.offset| 0) (= |#t~string59.offset| 0) (<= 0 |#t~string29.offset|) (<= |#t~string62.offset| 0) (<= 0 |#t~string4.offset|) (<= ~methaneLevelCritical~0 1) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (= |#t~string60.offset| 0) (= |#t~string6.offset| 0) (<= |#t~string29.offset| 0) (<= |#t~string72.offset| 0) (<= |#t~string2.offset| 0) (<= |#t~string19.offset| 0) (<= 0 |#t~string25.offset|) (<= 0 ~methAndRunningLastTime~0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string68.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...