java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.logsizewrapperfluid.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK --sifa.max.parallel.explicit.values 4 --sifa.sizelimitfluid.max.disjunctions 16 -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-ba7495b [2019-09-25 17:49:18,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-25 17:49:18,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-25 17:49:18,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-25 17:49:18,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-25 17:49:18,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-25 17:49:18,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-25 17:49:18,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-25 17:49:18,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-25 17:49:18,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-25 17:49:18,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-25 17:49:18,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-25 17:49:18,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-25 17:49:18,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-25 17:49:18,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-25 17:49:18,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-25 17:49:18,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-25 17:49:18,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-25 17:49:18,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-25 17:49:18,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-25 17:49:18,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-25 17:49:18,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-25 17:49:18,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-25 17:49:18,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-25 17:49:18,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-25 17:49:18,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-25 17:49:18,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-25 17:49:19,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-25 17:49:19,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-25 17:49:19,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-25 17:49:19,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-25 17:49:19,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-25 17:49:19,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-25 17:49:19,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-25 17:49:19,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-25 17:49:19,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-25 17:49:19,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-25 17:49:19,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-25 17:49:19,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-25 17:49:19,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-25 17:49:19,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-25 17:49:19,009 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 [2019-09-25 17:49:19,024 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-25 17:49:19,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-25 17:49:19,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-25 17:49:19,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-25 17:49:19,026 INFO L138 SettingsManager]: * Use SBE=true [2019-09-25 17:49:19,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-25 17:49:19,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-25 17:49:19,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-25 17:49:19,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-25 17:49:19,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-25 17:49:19,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-25 17:49:19,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-25 17:49:19,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-25 17:49:19,028 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-25 17:49:19,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-25 17:49:19,028 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-25 17:49:19,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-25 17:49:19,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-25 17:49:19,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-25 17:49:19,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-25 17:49:19,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-25 17:49:19,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-25 17:49:19,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-25 17:49:19,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-25 17:49:19,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-25 17:49:19,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-25 17:49:19,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-25 17:49:19,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-25 17:49:19,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> 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: LogSizeWrapperFluid Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Max. Parallel Explicit Values -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: SizeLimitFluid Max. Disjunctions -> 16 [2019-09-25 17:49:19,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-25 17:49:19,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-25 17:49:19,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-25 17:49:19,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-25 17:49:19,080 INFO L275 PluginConnector]: CDTParser initialized [2019-09-25 17:49:19,081 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-09-25 17:49:19,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82fc180de/aa4dafd3906b4395a07c833782ec71e3/FLAGbaf4c561a [2019-09-25 17:49:19,613 INFO L306 CDTParser]: Found 1 translation units. [2019-09-25 17:49:19,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product56.cil.c [2019-09-25 17:49:19,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82fc180de/aa4dafd3906b4395a07c833782ec71e3/FLAGbaf4c561a [2019-09-25 17:49:19,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82fc180de/aa4dafd3906b4395a07c833782ec71e3 [2019-09-25 17:49:19,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-25 17:49:19,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-25 17:49:19,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-25 17:49:19,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-25 17:49:19,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-25 17:49:19,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:49:19" (1/1) ... [2019-09-25 17:49:19,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9ca86a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:19, skipping insertion in model container [2019-09-25 17:49:19,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:49:19" (1/1) ... [2019-09-25 17:49:19,942 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-25 17:49:19,989 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-25 17:49:20,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-25 17:49:20,543 INFO L188 MainTranslator]: Completed pre-run [2019-09-25 17:49:20,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-25 17:49:20,673 INFO L192 MainTranslator]: Completed translation [2019-09-25 17:49:20,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20 WrapperNode [2019-09-25 17:49:20,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-25 17:49:20,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-25 17:49:20,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-25 17:49:20,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-25 17:49:20,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (1/1) ... [2019-09-25 17:49:20,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-25 17:49:20,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-25 17:49:20,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-25 17:49:20,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-25 17:49:20,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:49:20" (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 [2019-09-25 17:49:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-25 17:49:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-25 17:49:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-25 17:49:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-25 17:49:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-25 17:49:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-25 17:49:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-25 17:49:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-25 17:49:20,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-25 17:49:20,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-25 17:49:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-25 17:49:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-25 17:49:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-25 17:49:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-25 17:49:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-25 17:49:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-25 17:49:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-25 17:49:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-25 17:49:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-25 17:49:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-25 17:49:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-25 17:49:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-25 17:49:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-25 17:49:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-25 17:49:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-25 17:49:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-25 17:49:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-25 17:49:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-25 17:49:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-25 17:49:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-25 17:49:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-25 17:49:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-25 17:49:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-25 17:49:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-25 17:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-25 17:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-25 17:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-25 17:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-25 17:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-25 17:49:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-25 17:49:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-25 17:49:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-25 17:49:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-25 17:49:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-25 17:49:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-25 17:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-25 17:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-25 17:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-25 17:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-25 17:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-25 17:49:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-25 17:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-25 17:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-25 17:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-25 17:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-25 17:49:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-25 17:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-25 17:49:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-25 17:49:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-25 17:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-25 17:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-25 17:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-25 17:49:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-25 17:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-25 17:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-25 17:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-25 17:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-25 17:49:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-25 17:49:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-25 17:49:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-25 17:49:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-25 17:49:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-25 17:49:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-25 17:49:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-25 17:49:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-25 17:49:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-25 17:49:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-25 17:49:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-25 17:49:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-25 17:49:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-25 17:49:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-25 17:49:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-25 17:49:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-25 17:49:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-25 17:49:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-25 17:49:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-25 17:49:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-25 17:49:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-25 17:49:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-25 17:49:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-25 17:49:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-25 17:49:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-25 17:49:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-25 17:49:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-25 17:49:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-25 17:49:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-25 17:49:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-25 17:49:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-25 17:49:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-25 17:49:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-25 17:49:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-25 17:49:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-25 17:49:22,615 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-25 17:49:22,616 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-25 17:49:22,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:49:22 BoogieIcfgContainer [2019-09-25 17:49:22,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-25 17:49:22,619 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-25 17:49:22,619 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-25 17:49:22,620 INFO L275 PluginConnector]: Sifa initialized [2019-09-25 17:49:22,621 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:49:22" (1/1) ... [2019-09-25 17:49:22,622 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=ExplicitValueDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=4 ♦ 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=16 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-09-25 17:49:22,655 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-25 17:49:22,655 INFO L169 IcfgInterpreter]: Building call graph [2019-09-25 17:49:22,671 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-25 17:49:22,684 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-25 17:49:22,685 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-25 17:49:33,410 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-09-25 17:49:35,020 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-09-25 17:49:35,160 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-09-25 17:49:35,345 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-09-25 17:49:35,479 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-09-25 17:49:35,501 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 484 for LOIs [2019-09-25 17:49:35,558 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 484 for LOIs [2019-09-25 17:49:35,575 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 484 for LOIs [2019-09-25 17:49:35,824 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 488 [2019-09-25 17:49:35,950 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 488 [2019-09-25 17:49:36,392 WARN L191 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:36,762 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:37,010 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:37,282 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:37,474 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:37,716 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:37,898 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:38,147 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:38,325 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:38,578 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:38,743 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:38,981 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:39,139 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:39,395 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:39,599 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:39,834 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 500 [2019-09-25 17:49:40,332 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-09-25 17:49:42,450 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-09-25 17:49:44,311 WARN L191 SmtUtils]: Spent 928.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-09-25 17:49:46,281 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-09-25 17:49:47,530 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-09-25 17:49:47,829 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-09-25 17:49:49,062 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 516 [2019-09-25 17:49:50,046 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-09-25 17:49:50,336 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-09-25 17:49:50,915 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-09-25 17:49:51,177 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-09-25 17:49:51,519 INFO L199 IcfgInterpreter]: Interpreting procedure cleanup with input of size 1 for LOIs [2019-09-25 17:49:51,522 INFO L199 IcfgInterpreter]: Interpreting procedure timeShift with input of size 81 for LOIs [2019-09-25 17:49:51,582 INFO L199 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification2_spec__2 with input of size 66 for LOIs [2019-09-25 17:49:51,586 INFO L199 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 80 for LOIs [2019-09-25 17:49:51,592 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-25 17:49:51,593 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-25 17:49:51,595 INFO L193 IcfgInterpreter]: Reachable states at location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 1876#(and (not (= 0 ~methAndRunningLastTime~0)) (= |#t~string20.offset| 0) (= |#t~string21.offset| 0) (= |#t~string44.offset| 0) (= |#t~string56.offset| 0) (= |#t~string29.offset| 0) (= |#t~string42.offset| 0) (= |#t~string27.offset| 0) (= |#t~string54.offset| 0) (= |#t~string58.offset| 0) (not (= ~pumpRunning~0 0)) (= |#t~string28.offset| 0) (= |#t~string66.offset| 0) (= |#t~string62.offset| 0) (= |#t~string64.offset| 0) (= |#t~string19.offset| 0) (= ~head~0.base 0) (not (= 0 ~methaneLevelCritical~0)) (= |#t~string32.offset| 0) (= |#t~string30.offset| 0) (= ~cleanupTimeShifts~0 4) (<= ~methaneLevelCritical~0 2147483647) (= |#t~string52.offset| 0) (= |#NULL.base| 0) (= |#t~string38.offset| 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#t~string18.offset| 0) (= |#t~string60.offset| 0) (= |#t~string22.offset| 0) (= ~head~0.offset 0) (<= ~pumpRunning~0 2147483647) (= |#t~string31.offset| 0) (= |#t~string36.offset| 0) (= |#t~string40.offset| 0) (= |#NULL.offset| 0) (<= 0 (+ ~methaneLevelCritical~0 2147483648)) (= |#t~string23.offset| 0)) [2019-09-25 17:49:51,605 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-25 17:49:51,606 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-25 17:49:51,607 INFO L168 Benchmark]: Toolchain (without parser) took 31683.01 ms. Allocated memory was 136.3 MB in the beginning and 1.0 GB in the end (delta: 882.4 MB). Free memory was 82.6 MB in the beginning and 782.4 MB in the end (delta: -699.8 MB). Peak memory consumption was 182.5 MB. Max. memory is 7.1 GB. [2019-09-25 17:49:51,609 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-25 17:49:51,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.15 ms. Allocated memory was 136.3 MB in the beginning and 197.7 MB in the end (delta: 61.3 MB). Free memory was 82.4 MB in the beginning and 159.7 MB in the end (delta: -77.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-09-25 17:49:51,610 INFO L168 Benchmark]: Boogie Preprocessor took 106.54 ms. Allocated memory is still 197.7 MB. Free memory was 159.7 MB in the beginning and 155.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-25 17:49:51,611 INFO L168 Benchmark]: RCFGBuilder took 1836.74 ms. Allocated memory was 197.7 MB in the beginning and 213.9 MB in the end (delta: 16.3 MB). Free memory was 155.7 MB in the beginning and 131.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. [2019-09-25 17:49:51,612 INFO L168 Benchmark]: Sifa took 28986.68 ms. Allocated memory was 213.9 MB in the beginning and 1.0 GB in the end (delta: 804.8 MB). Free memory was 131.6 MB in the beginning and 782.4 MB in the end (delta: -650.8 MB). Peak memory consumption was 154.0 MB. Max. memory is 7.1 GB. [2019-09-25 17:49:51,616 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 136.3 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.15 ms. Allocated memory was 136.3 MB in the beginning and 197.7 MB in the end (delta: 61.3 MB). Free memory was 82.4 MB in the beginning and 159.7 MB in the end (delta: -77.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.54 ms. Allocated memory is still 197.7 MB. Free memory was 159.7 MB in the beginning and 155.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1836.74 ms. Allocated memory was 197.7 MB in the beginning and 213.9 MB in the end (delta: 16.3 MB). Free memory was 155.7 MB in the beginning and 131.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 95.5 MB. Max. memory is 7.1 GB. * Sifa took 28986.68 ms. Allocated memory was 213.9 MB in the beginning and 1.0 GB in the end (delta: 804.8 MB). Free memory was 131.6 MB in the beginning and 782.4 MB in the end (delta: -650.8 MB). Peak memory consumption was 154.0 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]: 28941, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 785, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 529, TOOLS_POST_TIME[ms]: 12612, TOOLS_POST_CALL_APPLICATIONS: 206, TOOLS_POST_CALL_TIME[ms]: 393, TOOLS_POST_RETURN_APPLICATIONS: 199, TOOLS_POST_RETURN_TIME[ms]: 206, TOOLS_QUANTIFIERELIM_APPLICATIONS: 933, TOOLS_QUANTIFIERELIM_TIME[ms]: 12958, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 12384, FLUID_QUERY_TIME[ms]: 24, FLUID_QUERIES: 816, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 240, DOMAIN_JOIN_TIME[ms]: 14721, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 13, DOMAIN_WIDEN_TIME[ms]: 248, DOMAIN_ISSUBSETEQ_APPLICATIONS: 31, DOMAIN_ISSUBSETEQ_TIME[ms]: 60, DOMAIN_ISBOTTOM_APPLICATIONS: 140, DOMAIN_ISBOTTOM_TIME[ms]: 431, LOOP_SUMMARIZER_APPLICATIONS: 18, LOOP_SUMMARIZER_CACHE_MISSES: 18, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 5514, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 5514, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 31, CALL_SUMMARIZER_APPLICATIONS: 199, CALL_SUMMARIZER_CACHE_MISSES: 32, CALL_SUMMARIZER_OVERALL_TIME[ms]: 13006, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 13004, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 8, DAG_COMPRESSION_TIME[ms]: 61, DAG_COMPRESSION_PROCESSED_NODES: 757, DAG_COMPRESSION_RETAINED_NODES: 388 - UnprovableResult [Line: 410]: 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 1876#(and (not (= 0 ~methAndRunningLastTime~0)) (= |#t~string20.offset| 0) (= |#t~string21.offset| 0) (= |#t~string44.offset| 0) (= |#t~string56.offset| 0) (= |#t~string29.offset| 0) (= |#t~string42.offset| 0) (= |#t~string27.offset| 0) (= |#t~string54.offset| 0) (= |#t~string58.offset| 0) (not (= ~pumpRunning~0 0)) (= |#t~string28.offset| 0) (= |#t~string66.offset| 0) (= |#t~string62.offset| 0) (= |#t~string64.offset| 0) (= |#t~string19.offset| 0) (= ~head~0.base 0) (not (= 0 ~methaneLevelCritical~0)) (= |#t~string32.offset| 0) (= |#t~string30.offset| 0) (= ~cleanupTimeShifts~0 4) (<= ~methaneLevelCritical~0 2147483647) (= |#t~string52.offset| 0) (= |#NULL.base| 0) (= |#t~string38.offset| 0) (<= 0 (+ ~pumpRunning~0 2147483648)) (= |#t~string18.offset| 0) (= |#t~string60.offset| 0) (= |#t~string22.offset| 0) (= ~head~0.offset 0) (<= ~pumpRunning~0 2147483647) (= |#t~string31.offset| 0) (= |#t~string36.offset| 0) (= |#t~string40.offset| 0) (= |#NULL.offset| 0) (<= 0 (+ ~methaneLevelCritical~0 2147483648)) (= |#t~string23.offset| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...