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 IntervalDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-17 10:08:50,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-17 10:08:50,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-17 10:08:50,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-17 10:08:50,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-17 10:08:50,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-17 10:08:50,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-17 10:08:50,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-17 10:08:50,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-17 10:08:50,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-17 10:08:50,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-17 10:08:50,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-17 10:08:50,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-17 10:08:50,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-17 10:08:50,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-17 10:08:50,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-17 10:08:50,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-17 10:08:50,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-17 10:08:50,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-17 10:08:50,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-17 10:08:50,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-17 10:08:50,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-17 10:08:50,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-17 10:08:50,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-17 10:08:50,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-17 10:08:50,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-17 10:08:50,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-17 10:08:50,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-17 10:08:50,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-17 10:08:50,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-17 10:08:50,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-17 10:08:50,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-17 10:08:50,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-17 10:08:50,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-17 10:08:50,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-17 10:08:50,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-17 10:08:50,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-17 10:08:50,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-17 10:08:50,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-17 10:08:50,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-17 10:08:50,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-17 10:08:50,931 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 [2019-09-17 10:08:50,945 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-17 10:08:50,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-17 10:08:50,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-17 10:08:50,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-17 10:08:50,947 INFO L138 SettingsManager]: * Use SBE=true [2019-09-17 10:08:50,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-17 10:08:50,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-17 10:08:50,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-17 10:08:50,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-17 10:08:50,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-17 10:08:50,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-17 10:08:50,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-17 10:08:50,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-17 10:08:50,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-17 10:08:50,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-17 10:08:50,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-17 10:08:50,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-17 10:08:50,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-17 10:08:50,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-17 10:08:50,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-17 10:08:50,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-17 10:08:50,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-17 10:08:50,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-17 10:08:50,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-17 10:08:50,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-17 10:08:50,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-17 10:08:50,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-17 10:08:50,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-17 10:08:50,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain 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: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-17 10:08:50,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-17 10:08:50,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-17 10:08:50,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-17 10:08:50,995 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-17 10:08:50,996 INFO L275 PluginConnector]: CDTParser initialized [2019-09-17 10:08:50,996 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product03.cil.c [2019-09-17 10:08:51,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a116f314d/65de9834126f4655a58164a1333ea7bc/FLAGa27e49e7f [2019-09-17 10:08:51,559 INFO L306 CDTParser]: Found 1 translation units. [2019-09-17 10:08:51,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product03.cil.c [2019-09-17 10:08:51,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a116f314d/65de9834126f4655a58164a1333ea7bc/FLAGa27e49e7f [2019-09-17 10:08:51,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a116f314d/65de9834126f4655a58164a1333ea7bc [2019-09-17 10:08:51,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-17 10:08:51,905 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-17 10:08:51,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-17 10:08:51,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-17 10:08:51,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-17 10:08:51,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 10:08:51" (1/1) ... [2019-09-17 10:08:51,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f808fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:51, skipping insertion in model container [2019-09-17 10:08:51,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 10:08:51" (1/1) ... [2019-09-17 10:08:51,922 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-17 10:08:51,981 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-17 10:08:52,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 10:08:52,408 INFO L188 MainTranslator]: Completed pre-run [2019-09-17 10:08:52,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-17 10:08:52,538 INFO L192 MainTranslator]: Completed translation [2019-09-17 10:08:52,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52 WrapperNode [2019-09-17 10:08:52,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-17 10:08:52,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-17 10:08:52,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-17 10:08:52,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-17 10:08:52,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (1/1) ... [2019-09-17 10:08:52,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-17 10:08:52,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-17 10:08:52,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-17 10:08:52,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-17 10:08:52,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 10:08:52" (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 [2019-09-17 10:08:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-17 10:08:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-17 10:08:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-17 10:08:52,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-17 10:08:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-17 10:08:52,699 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-17 10:08:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-17 10:08:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-17 10:08:52,700 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-17 10:08:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-17 10:08:52,701 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-17 10:08:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-17 10:08:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-17 10:08:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-17 10:08:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-17 10:08:52,702 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-17 10:08:52,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-17 10:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-17 10:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-17 10:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-17 10:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-17 10:08:52,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-17 10:08:52,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-17 10:08:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-17 10:08:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-17 10:08:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-17 10:08:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-17 10:08:52,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-17 10:08:52,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-17 10:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-17 10:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-17 10:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-17 10:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-17 10:08:52,708 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-17 10:08:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-17 10:08:52,710 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-17 10:08:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-17 10:08:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-17 10:08:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-17 10:08:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-17 10:08:52,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-17 10:08:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-17 10:08:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-17 10:08:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-17 10:08:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-17 10:08:52,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-17 10:08:52,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-17 10:08:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-17 10:08:52,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-17 10:08:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-17 10:08:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-17 10:08:52,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-17 10:08:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-17 10:08:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-17 10:08:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-17 10:08:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-17 10:08:52,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-17 10:08:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-17 10:08:52,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-17 10:08:52,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-17 10:08:54,066 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-17 10:08:54,067 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-17 10:08:54,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 10:08:54 BoogieIcfgContainer [2019-09-17 10:08:54,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-17 10:08:54,069 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-17 10:08:54,069 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-17 10:08:54,070 INFO L275 PluginConnector]: Sifa initialized [2019-09-17 10:08:54,071 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 10:08:54" (1/1) ... [2019-09-17 10:08:54,072 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=IntervalDomain ♦ 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=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-17 10:08:54,108 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-17 10:08:54,108 INFO L169 IcfgInterpreter]: Building call graph [2019-09-17 10:08:54,121 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-17 10:08:54,135 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-17 10:08:54,137 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-17 10:09:15,462 WARN L191 SmtUtils]: Spent 12.83 s on a formula simplification that was a NOOP. DAG size: 464 [2019-09-17 10:09:17,188 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-17 10:09:20,832 WARN L191 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 472 DAG size of output: 422 [2019-09-17 10:09:21,097 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-09-17 10:09:21,113 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 114 for LOIs [2019-09-17 10:09:21,163 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 114 for LOIs [2019-09-17 10:09:21,167 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 114 for LOIs [2019-09-17 10:09:21,587 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-17 10:09:21,956 WARN L191 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-17 10:09:22,326 WARN L191 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-17 10:09:22,658 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-17 10:09:23,008 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-17 10:09:23,381 WARN L191 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-17 10:09:24,342 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2019-09-17 10:09:25,372 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 140 DAG size of output: 135 [2019-09-17 10:09:26,407 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 140 DAG size of output: 135 [2019-09-17 10:09:27,385 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-17 10:09:27,713 WARN L191 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-17 10:09:28,115 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-17 10:09:28,453 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-17 10:09:28,799 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-17 10:09:29,143 WARN L191 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-17 10:09:29,477 WARN L191 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-17 10:09:29,805 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-17 10:09:30,135 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-17 10:09:31,069 WARN L191 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2019-09-17 10:09:32,061 WARN L191 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2019-09-17 10:09:33,019 WARN L191 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2019-09-17 10:09:33,944 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 130 [2019-09-17 10:09:34,869 WARN L191 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2019-09-17 10:09:35,229 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-17 10:09:36,133 WARN L191 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-17 10:09:36,998 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126 [2019-09-17 10:09:37,304 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-17 10:09:38,267 WARN L191 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-17 10:09:38,591 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-17 10:09:38,595 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-09-17 10:09:38,597 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 104 for LOIs [2019-09-17 10:09:38,836 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-17 10:09:39,480 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2019-09-17 10:09:39,482 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification1_spec__1 with input of size 101 for LOIs [2019-09-17 10:09:39,488 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 101 for LOIs [2019-09-17 10:09:39,701 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-09-17 10:09:39,702 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-17 10:09:39,702 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-17 10:09:39,705 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 254#(and (<= |#t~string58.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string17.offset|) (<= 0 |#t~string63.offset|) (<= |#t~string67.offset| 0) (<= |#t~string31.offset| 0) (<= ~systemActive~0 1) (<= ~head~0.offset 0) (<= 0 |#t~string64.offset|) (<= |#t~string55.offset| 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string11.offset|) (<= |#t~string56.offset| 0) (<= 0 |#t~string21.offset|) (<= |#t~string57.offset| 0) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= |#NULL.offset| 0) (<= |#t~string7.offset| 0) (<= |#t~string13.offset| 0) (<= |#t~string15.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= |#t~string9.offset| 0) (<= |#t~string64.offset| 0) (<= |#t~string53.offset| 0) (<= |#t~string11.offset| 0) (<= |#t~string65.offset| 0) (<= |#t~string27.offset| 0) (<= 0 |#t~string65.offset|) (<= 0 |#t~string56.offset|) (<= 0 |#t~string53.offset|) (<= |#t~string66.offset| 0) (<= 0 |#t~string7.offset|) (<= 0 |#t~string9.offset|) (<= |#t~string21.offset| 0) (<= 0 |#t~string15.offset|) (<= 0 |#t~string54.offset|) (<= 0 |#t~string23.offset|) (<= 0 |#NULL.offset|) (<= ~cleanupTimeShifts~0 4) (<= 0 |#t~string29.offset|) (<= 0 |#t~string13.offset|) (<= |#t~string62.offset| 0) (<= 0 ~pumpRunning~0) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 0 |#t~string66.offset|) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (<= |#t~string17.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string54.offset| 0) (<= |#t~string29.offset| 0) (<= 0 |#t~string55.offset|) (<= |#t~string19.offset| 0) (<= 0 |#t~string25.offset|) (<= |#t~string25.offset| 0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string57.offset|)) [2019-09-17 10:09:39,717 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-17 10:09:39,717 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-17 10:09:39,718 INFO L168 Benchmark]: Toolchain (without parser) took 47813.23 ms. Allocated memory was 140.0 MB in the beginning and 565.2 MB in the end (delta: 425.2 MB). Free memory was 86.8 MB in the beginning and 325.1 MB in the end (delta: -238.2 MB). Peak memory consumption was 186.9 MB. Max. memory is 7.1 GB. [2019-09-17 10:09:39,719 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-17 10:09:39,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.31 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.6 MB in the beginning and 168.9 MB in the end (delta: -82.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2019-09-17 10:09:39,721 INFO L168 Benchmark]: Boogie Preprocessor took 86.97 ms. Allocated memory is still 200.3 MB. Free memory was 168.9 MB in the beginning and 165.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-17 10:09:39,722 INFO L168 Benchmark]: RCFGBuilder took 1442.34 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 164.5 MB in the beginning and 159.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. [2019-09-17 10:09:39,723 INFO L168 Benchmark]: Sifa took 45647.71 ms. Allocated memory was 224.9 MB in the beginning and 565.2 MB in the end (delta: 340.3 MB). Free memory was 159.9 MB in the beginning and 325.1 MB in the end (delta: -165.2 MB). Peak memory consumption was 175.1 MB. Max. memory is 7.1 GB. [2019-09-17 10:09:39,726 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.31 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.6 MB in the beginning and 168.9 MB in the end (delta: -82.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.97 ms. Allocated memory is still 200.3 MB. Free memory was 168.9 MB in the beginning and 165.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1442.34 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 164.5 MB in the beginning and 159.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 93.3 MB. Max. memory is 7.1 GB. * Sifa took 45647.71 ms. Allocated memory was 224.9 MB in the beginning and 565.2 MB in the end (delta: 340.3 MB). Free memory was 159.9 MB in the beginning and 325.1 MB in the end (delta: -165.2 MB). Peak memory consumption was 175.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 45598, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 167, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 114, TOOLS_POST_TIME[ms]: 26666, TOOLS_POST_CALL_APPLICATIONS: 42, TOOLS_POST_CALL_TIME[ms]: 97, TOOLS_POST_RETURN_APPLICATIONS: 35, TOOLS_POST_RETURN_TIME[ms]: 38, TOOLS_QUANTIFIERELIM_APPLICATIONS: 190, TOOLS_QUANTIFIERELIM_TIME[ms]: 26722, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 26603, FLUID_QUERY_TIME[ms]: 8, FLUID_QUERIES: 169, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 60, DOMAIN_JOIN_TIME[ms]: 18483, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 4, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 41, DOMAIN_ISBOTTOM_TIME[ms]: 145, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 14046, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 14045, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 35, CALL_SUMMARIZER_CACHE_MISSES: 18, CALL_SUMMARIZER_OVERALL_TIME[ms]: 27049, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 27048, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 6, DAG_COMPRESSION_TIME[ms]: 46, DAG_COMPRESSION_PROCESSED_NODES: 353, DAG_COMPRESSION_RETAINED_NODES: 169 - UnprovableResult [Line: 461]: 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 254#(and (<= |#t~string58.offset| 0) (<= 0 |#t~string62.offset|) (<= 0 |#t~string27.offset|) (<= ~head~0.base 0) (<= 0 |#t~string19.offset|) (<= 0 ~head~0.offset) (<= 0 |#NULL.base|) (<= 0 |#t~string17.offset|) (<= 0 |#t~string63.offset|) (<= |#t~string67.offset| 0) (<= |#t~string31.offset| 0) (<= ~systemActive~0 1) (<= ~head~0.offset 0) (<= 0 |#t~string64.offset|) (<= |#t~string55.offset| 0) (<= 0 |#t~string67.offset|) (<= 0 |#t~string11.offset|) (<= |#t~string56.offset| 0) (<= 0 |#t~string21.offset|) (<= |#t~string57.offset| 0) (<= ~pumpRunning~0 0) (<= 0 ~head~0.base) (<= |#NULL.offset| 0) (<= |#t~string7.offset| 0) (<= |#t~string13.offset| 0) (<= |#t~string15.offset| 0) (<= 0 ~methaneLevelCritical~0) (<= |#t~string9.offset| 0) (<= |#t~string64.offset| 0) (<= |#t~string53.offset| 0) (<= |#t~string11.offset| 0) (<= |#t~string65.offset| 0) (<= |#t~string27.offset| 0) (<= 0 |#t~string65.offset|) (<= 0 |#t~string56.offset|) (<= 0 |#t~string53.offset|) (<= |#t~string66.offset| 0) (<= 0 |#t~string7.offset|) (<= 0 |#t~string9.offset|) (<= |#t~string21.offset| 0) (<= 0 |#t~string15.offset|) (<= 0 |#t~string54.offset|) (<= 0 |#t~string23.offset|) (<= 0 |#NULL.offset|) (<= ~cleanupTimeShifts~0 4) (<= 0 |#t~string29.offset|) (<= 0 |#t~string13.offset|) (<= |#t~string62.offset| 0) (<= 0 ~pumpRunning~0) (<= |#NULL.base| 0) (<= |#t~string63.offset| 0) (<= 0 |#t~string66.offset|) (<= 0 |#t~string31.offset|) (<= |#t~string23.offset| 0) (<= |#t~string17.offset| 0) (<= 4 ~cleanupTimeShifts~0) (<= |#t~string54.offset| 0) (<= |#t~string29.offset| 0) (<= 0 |#t~string55.offset|) (<= |#t~string19.offset| 0) (<= 0 |#t~string25.offset|) (<= |#t~string25.offset| 0) (<= 0 |#t~string58.offset|) (<= 0 |#t~string57.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...