/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:19:49,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:19:49,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:19:49,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:19:49,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:19:49,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:19:49,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:19:49,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:19:49,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:19:49,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:19:49,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:19:49,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:19:49,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:19:49,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:19:49,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:19:49,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:19:49,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:19:49,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:19:49,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:19:49,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:19:49,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:19:49,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:19:49,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:19:49,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:19:49,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:19:49,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:19:49,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:19:49,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:19:49,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:19:49,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:19:49,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:19:49,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:19:49,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:19:49,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:19:49,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:19:49,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:19:49,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:19:49,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:19:49,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:19:49,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:19:49,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:19:49,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 09:19:49,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:19:49,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:19:49,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:19:49,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:19:49,791 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:19:49,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:19:49,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:19:49,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:19:49,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:19:49,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:19:49,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:19:49,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:19:49,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:19:49,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:19:49,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:19:49,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:19:49,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:19:49,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:19:49,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:19:49,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:19:49,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:19:49,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:19:49,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:19:49,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:19:49,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:19:49,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:19:50,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:19:50,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:19:50,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:19:50,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:19:50,296 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:19:50,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-12-23 09:19:50,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/905934666/fc110710b86247cf8adcb1f8aca40a04/FLAGd073a3279 [2020-12-23 09:19:51,129 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:19:51,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-12-23 09:19:51,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/905934666/fc110710b86247cf8adcb1f8aca40a04/FLAGd073a3279 [2020-12-23 09:19:51,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/905934666/fc110710b86247cf8adcb1f8aca40a04 [2020-12-23 09:19:51,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:19:51,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:19:51,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:19:51,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:19:51,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:19:51,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:19:51" (1/1) ... [2020-12-23 09:19:51,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7df994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:51, skipping insertion in model container [2020-12-23 09:19:51,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:19:51" (1/1) ... [2020-12-23 09:19:51,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:19:51,521 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] [2020-12-23 09:19:51,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6303,6316] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] [2020-12-23 09:19:51,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:19:51,987 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp2~0,] left hand side expression in assignment: lhs: VariableLHS[~i~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] [2020-12-23 09:19:52,026 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c[6303,6316] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~cf~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_15~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_16~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~0,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_15~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~1,] left hand side expression in assignment: address: IdentifierExpression[~mem_17~1,] left hand side expression in assignment: lhs: VariableLHS[~excep~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~1,] left hand side expression in assignment: lhs: VariableLHS[~mem_16~2,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_17~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~1,] left hand side expression in assignment: lhs: VariableLHS[~cf~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~new~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_18~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_18~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_19~2,] left hand side expression in assignment: address: IdentifierExpression[~mem_19~2,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp12~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp13~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_20~0,] left hand side expression in assignment: lhs: VariableLHS[~next~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_21~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp14~3,] left hand side expression in assignment: lhs: VariableLHS[~temp~0,] left hand side expression in assignment: lhs: VariableLHS[~count,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp15~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp16~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_22~0,] left hand side expression in assignment: lhs: VariableLHS[~head~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~mem_23~0,] left hand side expression in assignment: lhs: VariableLHS[~excep~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp17~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~2,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~2,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~0,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~4,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp4~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp5~3,] left hand side expression in assignment: lhs: VariableLHS[~mem_12~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp6~3,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp7~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp8~4,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp9~4,] left hand side expression in assignment: lhs: VariableLHS[~mem_13~1,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp10~5,] left hand side expression in assignment: lhs: VariableLHS[~__cil_tmp11~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~waterLevel~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methaneLevelCritical~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] [2020-12-23 09:19:52,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:19:52,147 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:19:52,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52 WrapperNode [2020-12-23 09:19:52,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:19:52,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:19:52,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:19:52,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:19:52,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:19:52,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:19:52,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:19:52,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:19:52,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... [2020-12-23 09:19:52,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:19:52,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:19:52,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:19:52,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:19:52,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 09:19:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:19:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:19:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:19:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:19:53,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:19:53,623 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2020-12-23 09:19:53,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:19:53 BoogieIcfgContainer [2020-12-23 09:19:53,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:19:53,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:19:53,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:19:53,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:19:53,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:19:51" (1/3) ... [2020-12-23 09:19:53,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1201de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:19:53, skipping insertion in model container [2020-12-23 09:19:53,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:19:52" (2/3) ... [2020-12-23 09:19:53,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b1201de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:19:53, skipping insertion in model container [2020-12-23 09:19:53,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:19:53" (3/3) ... [2020-12-23 09:19:53,641 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-12-23 09:19:53,651 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:19:53,658 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-23 09:19:53,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 09:19:53,741 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:19:53,742 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:19:53,742 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:19:53,742 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:19:53,742 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:19:53,742 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:19:53,743 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:19:53,743 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:19:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-12-23 09:19:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 09:19:53,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:53,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:53,778 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:53,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:53,787 INFO L82 PathProgramCache]: Analyzing trace with hash -502845476, now seen corresponding path program 1 times [2020-12-23 09:19:53,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:53,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142887624] [2020-12-23 09:19:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:54,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142887624] [2020-12-23 09:19:54,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:54,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:19:54,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897022342] [2020-12-23 09:19:54,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 09:19:54,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:54,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 09:19:54,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 09:19:54,308 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-12-23 09:19:54,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:54,341 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2020-12-23 09:19:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 09:19:54,343 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-23 09:19:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:54,356 INFO L225 Difference]: With dead ends: 154 [2020-12-23 09:19:54,356 INFO L226 Difference]: Without dead ends: 76 [2020-12-23 09:19:54,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 09:19:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-23 09:19:54,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-12-23 09:19:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-23 09:19:54,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-12-23 09:19:54,413 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-12-23 09:19:54,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:54,414 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-12-23 09:19:54,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 09:19:54,414 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-12-23 09:19:54,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 09:19:54,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:54,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:54,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:19:54,416 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:54,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:54,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1549602373, now seen corresponding path program 1 times [2020-12-23 09:19:54,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:54,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401564519] [2020-12-23 09:19:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:54,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:54,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401564519] [2020-12-23 09:19:54,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:54,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:19:54,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630594485] [2020-12-23 09:19:54,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:19:54,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:54,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:19:54,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:19:54,552 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-12-23 09:19:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:54,565 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-12-23 09:19:54,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:19:54,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-23 09:19:54,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:54,567 INFO L225 Difference]: With dead ends: 76 [2020-12-23 09:19:54,567 INFO L226 Difference]: Without dead ends: 36 [2020-12-23 09:19:54,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:19:54,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-23 09:19:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-23 09:19:54,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-23 09:19:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-12-23 09:19:54,575 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-12-23 09:19:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:54,575 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-12-23 09:19:54,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:19:54,576 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-12-23 09:19:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 09:19:54,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:54,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:54,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:19:54,577 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:54,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2020-12-23 09:19:54,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:54,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276773266] [2020-12-23 09:19:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:54,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276773266] [2020-12-23 09:19:54,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:54,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:19:54,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267381718] [2020-12-23 09:19:54,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:19:54,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:54,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:19:54,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:19:54,745 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 5 states. [2020-12-23 09:19:54,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:54,812 INFO L93 Difference]: Finished difference Result 89 states and 130 transitions. [2020-12-23 09:19:54,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:19:54,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-23 09:19:54,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:54,814 INFO L225 Difference]: With dead ends: 89 [2020-12-23 09:19:54,814 INFO L226 Difference]: Without dead ends: 59 [2020-12-23 09:19:54,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:19:54,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-12-23 09:19:54,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2020-12-23 09:19:54,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-12-23 09:19:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2020-12-23 09:19:54,826 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2020-12-23 09:19:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:54,826 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2020-12-23 09:19:54,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:19:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-12-23 09:19:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-23 09:19:54,827 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:54,828 INFO L422 BasicCegarLoop]: 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] [2020-12-23 09:19:54,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:19:54,828 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:54,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:54,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2020-12-23 09:19:54,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:54,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575012987] [2020-12-23 09:19:54,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:54,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575012987] [2020-12-23 09:19:54,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:54,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:19:54,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315791380] [2020-12-23 09:19:54,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:19:54,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:54,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:19:54,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:19:54,926 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-12-23 09:19:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:54,975 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2020-12-23 09:19:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:19:54,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-12-23 09:19:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:54,977 INFO L225 Difference]: With dead ends: 125 [2020-12-23 09:19:54,977 INFO L226 Difference]: Without dead ends: 76 [2020-12-23 09:19:54,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:19:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-12-23 09:19:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-12-23 09:19:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-23 09:19:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-12-23 09:19:54,989 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2020-12-23 09:19:54,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:54,989 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-12-23 09:19:54,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:19:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-12-23 09:19:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 09:19:54,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:54,991 INFO L422 BasicCegarLoop]: 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] [2020-12-23 09:19:54,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:19:54,991 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:54,992 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2020-12-23 09:19:54,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:54,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132831419] [2020-12-23 09:19:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:55,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132831419] [2020-12-23 09:19:55,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:55,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 09:19:55,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607905240] [2020-12-23 09:19:55,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 09:19:55,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:55,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 09:19:55,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:19:55,081 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2020-12-23 09:19:55,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:55,461 INFO L93 Difference]: Finished difference Result 458 states and 673 transitions. [2020-12-23 09:19:55,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-23 09:19:55,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-12-23 09:19:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:55,466 INFO L225 Difference]: With dead ends: 458 [2020-12-23 09:19:55,466 INFO L226 Difference]: Without dead ends: 390 [2020-12-23 09:19:55,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-23 09:19:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-12-23 09:19:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 189. [2020-12-23 09:19:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-12-23 09:19:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2020-12-23 09:19:55,499 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2020-12-23 09:19:55,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:55,500 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2020-12-23 09:19:55,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 09:19:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2020-12-23 09:19:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-23 09:19:55,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:55,503 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:55,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:19:55,503 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:55,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1143002491, now seen corresponding path program 1 times [2020-12-23 09:19:55,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:55,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641991945] [2020-12-23 09:19:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:55,617 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:55,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641991945] [2020-12-23 09:19:55,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984462804] [2020-12-23 09:19:55,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:19:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:55,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-23 09:19:55,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:19:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:55,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-23 09:19:55,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-23 09:19:55,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150000773] [2020-12-23 09:19:55,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:19:55,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:55,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:19:55,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:19:55,873 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 4 states. [2020-12-23 09:19:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:56,014 INFO L93 Difference]: Finished difference Result 423 states and 603 transitions. [2020-12-23 09:19:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:19:56,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-12-23 09:19:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:56,017 INFO L225 Difference]: With dead ends: 423 [2020-12-23 09:19:56,017 INFO L226 Difference]: Without dead ends: 298 [2020-12-23 09:19:56,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:19:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-12-23 09:19:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 287. [2020-12-23 09:19:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-12-23 09:19:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 406 transitions. [2020-12-23 09:19:56,057 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 406 transitions. Word has length 41 [2020-12-23 09:19:56,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:56,058 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 406 transitions. [2020-12-23 09:19:56,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:19:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 406 transitions. [2020-12-23 09:19:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 09:19:56,071 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:56,071 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:56,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-23 09:19:56,289 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:56,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:56,291 INFO L82 PathProgramCache]: Analyzing trace with hash -122499722, now seen corresponding path program 1 times [2020-12-23 09:19:56,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:56,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816955511] [2020-12-23 09:19:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 09:19:56,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816955511] [2020-12-23 09:19:56,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:56,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:19:56,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078126183] [2020-12-23 09:19:56,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:19:56,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:56,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:19:56,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:19:56,365 INFO L87 Difference]: Start difference. First operand 287 states and 406 transitions. Second operand 5 states. [2020-12-23 09:19:56,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:56,455 INFO L93 Difference]: Finished difference Result 877 states and 1232 transitions. [2020-12-23 09:19:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:19:56,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-12-23 09:19:56,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:56,459 INFO L225 Difference]: With dead ends: 877 [2020-12-23 09:19:56,460 INFO L226 Difference]: Without dead ends: 596 [2020-12-23 09:19:56,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 09:19:56,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-12-23 09:19:56,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 299. [2020-12-23 09:19:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-12-23 09:19:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 418 transitions. [2020-12-23 09:19:56,496 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 418 transitions. Word has length 44 [2020-12-23 09:19:56,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:56,496 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 418 transitions. [2020-12-23 09:19:56,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:19:56,497 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 418 transitions. [2020-12-23 09:19:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-23 09:19:56,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:56,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:56,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:19:56,499 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:56,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:56,499 INFO L82 PathProgramCache]: Analyzing trace with hash 18048888, now seen corresponding path program 1 times [2020-12-23 09:19:56,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:56,500 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160798592] [2020-12-23 09:19:56,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:56,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-23 09:19:56,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160798592] [2020-12-23 09:19:56,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:19:56,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:19:56,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702403173] [2020-12-23 09:19:56,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:19:56,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:56,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:19:56,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:19:56,585 INFO L87 Difference]: Start difference. First operand 299 states and 418 transitions. Second operand 6 states. [2020-12-23 09:19:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:56,690 INFO L93 Difference]: Finished difference Result 728 states and 1013 transitions. [2020-12-23 09:19:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:19:56,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-12-23 09:19:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:56,694 INFO L225 Difference]: With dead ends: 728 [2020-12-23 09:19:56,694 INFO L226 Difference]: Without dead ends: 435 [2020-12-23 09:19:56,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:19:56,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-12-23 09:19:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 274. [2020-12-23 09:19:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-12-23 09:19:56,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2020-12-23 09:19:56,725 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 44 [2020-12-23 09:19:56,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:56,726 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2020-12-23 09:19:56,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:19:56,726 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2020-12-23 09:19:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-23 09:19:56,727 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:56,727 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-23 09:19:56,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:19:56,727 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:56,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash 61594744, now seen corresponding path program 1 times [2020-12-23 09:19:56,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:56,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636757039] [2020-12-23 09:19:56,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:56,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636757039] [2020-12-23 09:19:56,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037143293] [2020-12-23 09:19:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:19:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:19:56,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-23 09:19:56,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-23 09:19:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 09:19:57,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-23 09:19:57,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-12-23 09:19:57,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047707329] [2020-12-23 09:19:57,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-23 09:19:57,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:19:57,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-23 09:19:57,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:19:57,059 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand 8 states. [2020-12-23 09:19:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:19:57,386 INFO L93 Difference]: Finished difference Result 683 states and 950 transitions. [2020-12-23 09:19:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-23 09:19:57,387 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-12-23 09:19:57,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:19:57,390 INFO L225 Difference]: With dead ends: 683 [2020-12-23 09:19:57,390 INFO L226 Difference]: Without dead ends: 456 [2020-12-23 09:19:57,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-12-23 09:19:57,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-12-23 09:19:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 236. [2020-12-23 09:19:57,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-23 09:19:57,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2020-12-23 09:19:57,421 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 45 [2020-12-23 09:19:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:19:57,421 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2020-12-23 09:19:57,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-23 09:19:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2020-12-23 09:19:57,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-23 09:19:57,423 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:19:57,423 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:19:57,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-23 09:19:57,638 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:19:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:19:57,639 INFO L82 PathProgramCache]: Analyzing trace with hash -594503994, now seen corresponding path program 2 times [2020-12-23 09:19:57,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:19:57,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497814731] [2020-12-23 09:19:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:19:57,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:19:57,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:19:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:19:57,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:19:57,895 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 09:19:57,895 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 09:19:57,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:19:58,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:19:58 BoogieIcfgContainer [2020-12-23 09:19:58,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 09:19:58,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 09:19:58,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 09:19:58,098 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 09:19:58,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:19:53" (3/4) ... [2020-12-23 09:19:58,102 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 09:19:58,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product36.cil.c-witness.graphml [2020-12-23 09:19:58,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 09:19:58,295 INFO L168 Benchmark]: Toolchain (without parser) took 6866.47 ms. Allocated memory was 160.4 MB in the beginning and 201.3 MB in the end (delta: 40.9 MB). Free memory was 135.4 MB in the beginning and 100.1 MB in the end (delta: 35.3 MB). Peak memory consumption was 77.4 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,295 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 160.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 09:19:58,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.83 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 113.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.06 ms. Allocated memory is still 160.4 MB. Free memory was 113.6 MB in the beginning and 110.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,297 INFO L168 Benchmark]: Boogie Preprocessor took 106.71 ms. Allocated memory is still 160.4 MB. Free memory was 110.6 MB in the beginning and 142.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,297 INFO L168 Benchmark]: RCFGBuilder took 1260.13 ms. Allocated memory is still 160.4 MB. Free memory was 142.4 MB in the beginning and 90.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,298 INFO L168 Benchmark]: TraceAbstraction took 4466.87 ms. Allocated memory was 160.4 MB in the beginning and 201.3 MB in the end (delta: 40.9 MB). Free memory was 89.5 MB in the beginning and 123.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,298 INFO L168 Benchmark]: Witness Printer took 196.94 ms. Allocated memory is still 201.3 MB. Free memory was 123.2 MB in the beginning and 100.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:19:58,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 160.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 717.83 ms. Allocated memory is still 160.4 MB. Free memory was 135.1 MB in the beginning and 113.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.06 ms. Allocated memory is still 160.4 MB. Free memory was 113.6 MB in the beginning and 110.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.71 ms. Allocated memory is still 160.4 MB. Free memory was 110.6 MB in the beginning and 142.4 MB in the end (delta: -31.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1260.13 ms. Allocated memory is still 160.4 MB. Free memory was 142.4 MB in the beginning and 90.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4466.87 ms. Allocated memory was 160.4 MB in the beginning and 201.3 MB in the end (delta: 40.9 MB). Free memory was 89.5 MB in the beginning and 123.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 7.2 MB. Max. memory is 8.0 GB. * Witness Printer took 196.94 ms. Allocated memory is still 201.3 MB. Free memory was 123.2 MB in the beginning and 100.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L301] int cleanupTimeShifts = 4; [L613] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] int retValue_acc ; [L378] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] int retValue_acc ; [L429] retValue_acc = 1 [L430] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] tmp = valid_product() [L386] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND TRUE ! pumpRunning [L259] int retValue_acc ; [L260] int tmp ; [L261] int tmp___0 ; [L891] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(waterLevel < 2) [L898] retValue_acc = 0 [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L265] tmp = isHighWaterSensorDry() [L267] COND FALSE !(\read(tmp)) [L270] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L272] retValue_acc = tmp___0 [L273] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] tmp = isHighWaterLevel() [L169] COND TRUE \read(tmp) [L190] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L911] tmp = getWaterLevel() [L913] COND TRUE tmp == 0 [L214] int retValue_acc ; [L217] retValue_acc = pumpRunning [L218] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L915] tmp___0 = isPumpRunning() [L917] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 691 SDtfs, 1345 SDslu, 1191 SDs, 0 SdLazy, 205 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=7, 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, 9 MinimizatonAttempts, 896 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 24290 SizeOfPredicates, 3 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 75/86 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! Received shutdown request...