/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:16:12,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:16:12,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:16:12,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:16:12,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:16:12,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:16:12,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:16:12,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:16:12,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:16:12,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:16:12,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:16:12,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:16:12,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:16:12,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:16:12,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:16:12,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:16:12,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:16:12,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:16:12,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:16:12,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:16:12,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:16:12,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:16:12,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:16:12,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:16:12,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:16:12,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:16:12,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:16:12,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:16:12,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:16:12,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:16:12,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:16:12,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:16:12,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:16:12,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:16:12,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:16:12,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:16:12,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:16:12,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:16:12,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:16:12,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:16:12,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:16:12,858 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 [2023-04-02 04:16:12,879 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:16:12,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:16:12,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:16:12,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:16:12,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:16:12,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:16:12,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:16:12,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:16:12,881 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:16:12,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:12,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:16:12,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:16:12,883 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:16:13,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:16:13,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:16:13,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:16:13,124 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:16:13,125 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:16:13,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2023-04-02 04:16:14,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:16:14,489 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:16:14,490 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2023-04-02 04:16:14,497 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c35899a3/516d682a5ab5497f8b8686662f505b98/FLAG237f9af71 [2023-04-02 04:16:14,509 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c35899a3/516d682a5ab5497f8b8686662f505b98 [2023-04-02 04:16:14,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:16:14,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:16:14,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:14,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:16:14,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:16:14,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b93221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14, skipping insertion in model container [2023-04-02 04:16:14,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:16:14,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:16:14,665 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1605,1618] [2023-04-02 04:16:14,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:14,762 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:16:14,776 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1605,1618] [2023-04-02 04:16:14,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:16:14,852 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:16:14,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14 WrapperNode [2023-04-02 04:16:14,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:16:14,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:16:14,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:16:14,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:16:14,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:16:14,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:16:14,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:16:14,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:16:14,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (1/1) ... [2023-04-02 04:16:14,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:16:14,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:16:14,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:16:14,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:16:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:16:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:16:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:14,966 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:16:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:16:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:16:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:16:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:16:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:16:14,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:14,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:16:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:16:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:16:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:16:14,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:16:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:16:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:16:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:16:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:16:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:16:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:16:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:16:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:16:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:16:15,118 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:16:15,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:16:15,635 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:16:15,641 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:16:15,641 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:16:15,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:15 BoogieIcfgContainer [2023-04-02 04:16:15,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:16:15,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:16:15,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:16:15,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:16:15,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:16:14" (1/3) ... [2023-04-02 04:16:15,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18478de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:15, skipping insertion in model container [2023-04-02 04:16:15,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:16:14" (2/3) ... [2023-04-02 04:16:15,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18478de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:16:15, skipping insertion in model container [2023-04-02 04:16:15,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:16:15" (3/3) ... [2023-04-02 04:16:15,649 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2023-04-02 04:16:15,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:16:15,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:16:15,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:16:15,710 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f20ac89, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:16:15,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:16:15,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 89 states have (on average 1.303370786516854) internal successors, (116), 101 states have internal predecessors, (116), 43 states have call successors, (43), 26 states have call predecessors, (43), 26 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) [2023-04-02 04:16:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:16:15,721 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:15,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:15,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:15,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:15,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1912486321, now seen corresponding path program 1 times [2023-04-02 04:16:15,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:15,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522806563] [2023-04-02 04:16:15,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:15,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:16:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:16:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:16:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:15,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:15,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:15,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522806563] [2023-04-02 04:16:15,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522806563] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:15,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:15,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:16:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353134992] [2023-04-02 04:16:16,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:16,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:16:16,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:16,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:16:16,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:16:16,045 INFO L87 Difference]: Start difference. First operand has 162 states, 89 states have (on average 1.303370786516854) internal successors, (116), 101 states have internal predecessors, (116), 43 states have call successors, (43), 26 states have call predecessors, (43), 26 states have return successors, (43), 41 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:16,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:16,465 INFO L93 Difference]: Finished difference Result 273 states and 360 transitions. [2023-04-02 04:16:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:16:16,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:16:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:16,478 INFO L225 Difference]: With dead ends: 273 [2023-04-02 04:16:16,478 INFO L226 Difference]: Without dead ends: 148 [2023-04-02 04:16:16,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:16:16,486 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 86 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:16,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 20 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:16:16,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-04-02 04:16:16,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2023-04-02 04:16:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 68 states have (on average 1.25) internal successors, (85), 77 states have internal predecessors, (85), 28 states have call successors, (28), 24 states have call predecessors, (28), 19 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-02 04:16:16,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2023-04-02 04:16:16,541 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 52 [2023-04-02 04:16:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:16,542 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2023-04-02 04:16:16,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:16,542 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2023-04-02 04:16:16,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:16:16,550 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:16,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:16,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:16:16,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:16,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:16,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1093565257, now seen corresponding path program 1 times [2023-04-02 04:16:16,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:16,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550535068] [2023-04-02 04:16:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:16,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:16:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:16:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:16,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550535068] [2023-04-02 04:16:16,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550535068] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:16,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:16,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:16:16,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965504990] [2023-04-02 04:16:16,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:16,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:16:16,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:16,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:16:16,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:16:16,676 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:16,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:16,926 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2023-04-02 04:16:16,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:16:16,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:16:16,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:16,928 INFO L225 Difference]: With dead ends: 200 [2023-04-02 04:16:16,928 INFO L226 Difference]: Without dead ends: 132 [2023-04-02 04:16:16,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:16:16,930 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 96 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:16,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 25 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:16:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-04-02 04:16:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2023-04-02 04:16:16,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 71 states have internal predecessors, (78), 25 states have call successors, (25), 23 states have call predecessors, (25), 19 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-02 04:16:16,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2023-04-02 04:16:16,947 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 53 [2023-04-02 04:16:16,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:16,947 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2023-04-02 04:16:16,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:16:16,948 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2023-04-02 04:16:16,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:16:16,949 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:16,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:16,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:16:16,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:16,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash 728646559, now seen corresponding path program 1 times [2023-04-02 04:16:16,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:16,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861164536] [2023-04-02 04:16:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:16,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:16:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:16:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:16:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:17,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:17,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861164536] [2023-04-02 04:16:17,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861164536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:17,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:17,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:17,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828124274] [2023-04-02 04:16:17,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:17,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:17,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:17,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:17,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:17,138 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:16:17,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:17,903 INFO L93 Difference]: Finished difference Result 375 states and 465 transitions. [2023-04-02 04:16:17,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:16:17,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-04-02 04:16:17,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:17,905 INFO L225 Difference]: With dead ends: 375 [2023-04-02 04:16:17,905 INFO L226 Difference]: Without dead ends: 292 [2023-04-02 04:16:17,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:16:17,907 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 274 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:17,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 96 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:16:17,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-04-02 04:16:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 238. [2023-04-02 04:16:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 145 states have (on average 1.296551724137931) internal successors, (188), 163 states have internal predecessors, (188), 51 states have call successors, (51), 47 states have call predecessors, (51), 41 states have return successors, (48), 39 states have call predecessors, (48), 47 states have call successors, (48) [2023-04-02 04:16:17,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 287 transitions. [2023-04-02 04:16:17,977 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 287 transitions. Word has length 57 [2023-04-02 04:16:17,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:17,977 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 287 transitions. [2023-04-02 04:16:17,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:16:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 287 transitions. [2023-04-02 04:16:17,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 04:16:17,978 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:17,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:17,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:16:17,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:17,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:17,979 INFO L85 PathProgramCache]: Analyzing trace with hash -77990101, now seen corresponding path program 1 times [2023-04-02 04:16:17,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:17,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048402437] [2023-04-02 04:16:17,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:17,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:16:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:16:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:16:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:16:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:16:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:16:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:16:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:16:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:16:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:16:18,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:16:18,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:16:18,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048402437] [2023-04-02 04:16:18,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048402437] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:16:18,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:16:18,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:16:18,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461916222] [2023-04-02 04:16:18,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:16:18,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:16:18,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:16:18,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:16:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:16:18,189 INFO L87 Difference]: Start difference. First operand 238 states and 287 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:16:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:16:18,775 INFO L93 Difference]: Finished difference Result 726 states and 953 transitions. [2023-04-02 04:16:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:16:18,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 63 [2023-04-02 04:16:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:16:18,778 INFO L225 Difference]: With dead ends: 726 [2023-04-02 04:16:18,779 INFO L226 Difference]: Without dead ends: 512 [2023-04-02 04:16:18,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:16:18,780 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 296 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:16:18,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 69 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:16:18,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-04-02 04:16:18,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 449. [2023-04-02 04:16:18,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 274 states have (on average 1.2737226277372262) internal successors, (349), 309 states have internal predecessors, (349), 95 states have call successors, (95), 82 states have call predecessors, (95), 79 states have return successors, (111), 74 states have call predecessors, (111), 91 states have call successors, (111) [2023-04-02 04:16:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 555 transitions. [2023-04-02 04:16:18,861 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 555 transitions. Word has length 63 [2023-04-02 04:16:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:16:18,861 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 555 transitions. [2023-04-02 04:16:18,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-02 04:16:18,862 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 555 transitions. [2023-04-02 04:16:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-02 04:16:18,864 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:16:18,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:16:18,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:16:18,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:16:18,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:16:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1171810127, now seen corresponding path program 1 times [2023-04-02 04:16:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:16:18,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775787934] [2023-04-02 04:16:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:16:18,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:16:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:18,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 04:16:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 04:16:18,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 04:16:18,930 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 04:16:18,931 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:16:18,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:16:18,935 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-02 04:16:18,938 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 04:16:18,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 04:16:18 BoogieIcfgContainer [2023-04-02 04:16:18,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 04:16:18,993 INFO L158 Benchmark]: Toolchain (without parser) took 4480.21ms. Allocated memory was 318.8MB in the beginning and 399.5MB in the end (delta: 80.7MB). Free memory was 270.8MB in the beginning and 333.2MB in the end (delta: -62.4MB). Peak memory consumption was 19.4MB. Max. memory is 8.0GB. [2023-04-02 04:16:18,994 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:16:18,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.05ms. Allocated memory is still 318.8MB. Free memory was 270.3MB in the beginning and 252.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-02 04:16:18,995 INFO L158 Benchmark]: Boogie Preprocessor took 50.23ms. Allocated memory is still 318.8MB. Free memory was 252.5MB in the beginning and 248.8MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-02 04:16:18,996 INFO L158 Benchmark]: RCFGBuilder took 738.93ms. Allocated memory is still 318.8MB. Free memory was 248.8MB in the beginning and 210.0MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2023-04-02 04:16:18,998 INFO L158 Benchmark]: TraceAbstraction took 3346.86ms. Allocated memory was 318.8MB in the beginning and 399.5MB in the end (delta: 80.7MB). Free memory was 209.5MB in the beginning and 333.2MB in the end (delta: -123.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 04:16:19,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 184.5MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 340.05ms. Allocated memory is still 318.8MB. Free memory was 270.3MB in the beginning and 252.5MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.23ms. Allocated memory is still 318.8MB. Free memory was 252.5MB in the beginning and 248.8MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 738.93ms. Allocated memory is still 318.8MB. Free memory was 248.8MB in the beginning and 210.0MB in the end (delta: 38.8MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3346.86ms. Allocated memory was 318.8MB in the beginning and 399.5MB in the end (delta: 80.7MB). Free memory was 209.5MB in the beginning and 333.2MB in the end (delta: -123.7MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L303] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int cleanupTimeShifts = 4; [L604] int waterLevel = 1; [L605] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; VAL [\old(cleanupTimeShifts)=55, \old(head)={49:54}, \old(methaneLevelCritical)=53, \old(pumpRunning)=57, \old(systemActive)=52, \old(waterLevel)=51, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] int retValue_acc ; [L579] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L583] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L585] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L585] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L585] tmp = valid_product() [L587] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L589] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L590] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L572] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L695] int splverifierCounter ; [L696] int tmp ; [L697] int tmp___0 ; [L698] int tmp___1 ; [L699] int tmp___2 ; [L702] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L704] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L712] tmp = __VERIFIER_nondet_int() [L714] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L716] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L622] COND TRUE waterLevel < 2 [L623] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L722] tmp___0 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L732] tmp___2 = __VERIFIER_nondet_int() [L734] COND FALSE !(\read(tmp___2)) [L738] tmp___1 = __VERIFIER_nondet_int() [L740] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L742] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L918] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L925] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L742] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L749] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L770] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L777] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L785] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L643] int retValue_acc ; [L646] retValue_acc = methaneLevelCritical [L647] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L107] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L113] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] int retValue_acc ; [L678] retValue_acc = waterLevel [L679] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L113] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L117] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L851] int retValue_acc ; [L854] retValue_acc = pumpRunning [L855] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L117] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L123] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 804 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 752 mSDsluCounter, 210 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 359 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1932 IncrementalHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 359 mSolverCounterUnsat, 50 mSDtfsCounter, 1932 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-02 04:16:19,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...