/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_spec2_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:17:52,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:17:52,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:17:52,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:17:52,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:17:52,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:17:52,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:17:52,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:17:52,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:17:52,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:17:52,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:17:52,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:17:52,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:17:52,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:17:52,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:17:52,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:17:52,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:17:52,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:17:52,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:17:52,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:17:52,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:17:52,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:17:52,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:17:52,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:17:52,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:17:52,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:17:52,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:17:52,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:17:52,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:17:52,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:17:52,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:17:52,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:17:52,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:17:52,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:17:52,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:17:52,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:17:52,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:17:52,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:17:52,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:17:52,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:17:52,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:17:52,888 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 09:17:52,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:17:52,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:17:52,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:17:52,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:17:52,948 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:17:52,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:17:52,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:17:52,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:17:52,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:17:52,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:17:52,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:17:52,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:17:52,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:17:52,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:17:52,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:17:52,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:17:52,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:17:52,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:17:52,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:17:52,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:17:52,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:17:52,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:17:52,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:17:52,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:17:52,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:17:52,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:17:53,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:17:53,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:17:53,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:17:53,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:17:53,388 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:17:53,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-12-23 09:17:53,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f129322bb/6f2dd3655d2e429899c06f7767cfbf6c/FLAG59fe6f43a [2020-12-23 09:17:54,352 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:17:54,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-12-23 09:17:54,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f129322bb/6f2dd3655d2e429899c06f7767cfbf6c/FLAG59fe6f43a [2020-12-23 09:17:54,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/f129322bb/6f2dd3655d2e429899c06f7767cfbf6c [2020-12-23 09:17:54,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:17:54,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:17:54,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:17:54,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:17:54,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:17:54,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:17:54" (1/1) ... [2020-12-23 09:17:54,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79a76ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:54, skipping insertion in model container [2020-12-23 09:17:54,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:17:54" (1/1) ... [2020-12-23 09:17:54,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:17:54,711 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] 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~1,] 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~2,] 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~0,] 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~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] 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~1,] 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~2,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] 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~4,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] 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[~tmp~6,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] 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~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] [2020-12-23 09:17:55,043 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_spec2_product42.cil.c[16731,16744] 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,] [2020-12-23 09:17:55,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:17:55,071 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] 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~1,] 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~2,] 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~0,] 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~0,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~0,] 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~1,] 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~2,] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] 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~4,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] 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[~tmp~6,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~methAndRunningLastTime~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] 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~8,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] [2020-12-23 09:17:55,256 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_spec2_product42.cil.c[16731,16744] 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,] [2020-12-23 09:17:55,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:17:55,318 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:17:55,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55 WrapperNode [2020-12-23 09:17:55,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:17:55,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:17:55,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:17:55,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:17:55,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:17:55,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:17:55,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:17:55,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:17:55,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (1/1) ... [2020-12-23 09:17:55,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:17:55,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:17:55,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:17:55,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:17:55,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (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 09:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:17:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:17:56,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:17:56,768 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2020-12-23 09:17:56,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:17:56 BoogieIcfgContainer [2020-12-23 09:17:56,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:17:56,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:17:56,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:17:56,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:17:56,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:17:54" (1/3) ... [2020-12-23 09:17:56,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a410f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:17:56, skipping insertion in model container [2020-12-23 09:17:56,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:55" (2/3) ... [2020-12-23 09:17:56,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a410f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:17:56, skipping insertion in model container [2020-12-23 09:17:56,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:17:56" (3/3) ... [2020-12-23 09:17:56,780 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-12-23 09:17:56,788 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:17:56,794 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-23 09:17:56,815 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 09:17:56,846 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:17:56,846 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:17:56,846 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:17:56,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:17:56,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:17:56,847 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:17:56,847 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:17:56,847 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:17:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states. [2020-12-23 09:17:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-23 09:17:56,874 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:56,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:56,875 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:56,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:56,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1607383533, now seen corresponding path program 1 times [2020-12-23 09:17:56,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:56,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704786919] [2020-12-23 09:17:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:57,283 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 09:17:57,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704786919] [2020-12-23 09:17:57,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:57,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:17:57,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753428954] [2020-12-23 09:17:57,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 09:17:57,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:57,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 09:17:57,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 09:17:57,311 INFO L87 Difference]: Start difference. First operand 91 states. Second operand 2 states. [2020-12-23 09:17:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:57,346 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2020-12-23 09:17:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 09:17:57,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-23 09:17:57,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:57,361 INFO L225 Difference]: With dead ends: 175 [2020-12-23 09:17:57,361 INFO L226 Difference]: Without dead ends: 87 [2020-12-23 09:17:57,366 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 09:17:57,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-12-23 09:17:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-12-23 09:17:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-23 09:17:57,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2020-12-23 09:17:57,420 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2020-12-23 09:17:57,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:57,420 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2020-12-23 09:17:57,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 09:17:57,421 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2020-12-23 09:17:57,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-23 09:17:57,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:57,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:57,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:17:57,423 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:57,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:57,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1734754371, now seen corresponding path program 1 times [2020-12-23 09:17:57,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:57,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134944641] [2020-12-23 09:17:57,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:57,578 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 09:17:57,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134944641] [2020-12-23 09:17:57,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:57,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:17:57,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196573046] [2020-12-23 09:17:57,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:57,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:57,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:57,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:57,583 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 3 states. [2020-12-23 09:17:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:57,596 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2020-12-23 09:17:57,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:57,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-23 09:17:57,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:57,598 INFO L225 Difference]: With dead ends: 87 [2020-12-23 09:17:57,599 INFO L226 Difference]: Without dead ends: 39 [2020-12-23 09:17:57,600 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 09:17:57,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-23 09:17:57,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-23 09:17:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-23 09:17:57,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-12-23 09:17:57,607 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2020-12-23 09:17:57,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:57,608 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-12-23 09:17:57,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-12-23 09:17:57,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-23 09:17:57,609 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:57,610 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] [2020-12-23 09:17:57,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:17:57,610 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:57,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:57,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1107356745, now seen corresponding path program 1 times [2020-12-23 09:17:57,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:57,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924513082] [2020-12-23 09:17:57,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:57,784 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 09:17:57,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924513082] [2020-12-23 09:17:57,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:57,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:17:57,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414537757] [2020-12-23 09:17:57,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:57,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:57,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:57,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:57,788 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 5 states. [2020-12-23 09:17:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:57,843 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2020-12-23 09:17:57,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 09:17:57,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-23 09:17:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:57,845 INFO L225 Difference]: With dead ends: 71 [2020-12-23 09:17:57,845 INFO L226 Difference]: Without dead ends: 39 [2020-12-23 09:17:57,846 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 09:17:57,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-23 09:17:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-23 09:17:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-23 09:17:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-23 09:17:57,853 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2020-12-23 09:17:57,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:57,854 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-23 09:17:57,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-23 09:17:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 09:17:57,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:57,856 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 09:17:57,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:17:57,856 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:57,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:57,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1414852999, now seen corresponding path program 1 times [2020-12-23 09:17:57,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:57,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636495923] [2020-12-23 09:17:57,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:57,924 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 09:17:57,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636495923] [2020-12-23 09:17:57,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:57,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:17:57,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061041355] [2020-12-23 09:17:57,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:57,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:57,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:57,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:57,927 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2020-12-23 09:17:57,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:57,956 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2020-12-23 09:17:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:57,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-23 09:17:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:57,958 INFO L225 Difference]: With dead ends: 93 [2020-12-23 09:17:57,959 INFO L226 Difference]: Without dead ends: 61 [2020-12-23 09:17:57,959 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 09:17:57,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-23 09:17:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-12-23 09:17:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-23 09:17:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2020-12-23 09:17:57,970 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2020-12-23 09:17:57,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:57,971 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2020-12-23 09:17:57,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:57,971 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2020-12-23 09:17:57,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-23 09:17:57,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:57,972 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, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:57,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:17:57,973 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:57,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:57,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1390046811, now seen corresponding path program 1 times [2020-12-23 09:17:57,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:57,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329721068] [2020-12-23 09:17:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:58,123 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 09:17:58,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329721068] [2020-12-23 09:17:58,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:58,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:17:58,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655326027] [2020-12-23 09:17:58,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:58,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:58,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:58,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:58,127 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2020-12-23 09:17:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:58,237 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2020-12-23 09:17:58,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 09:17:58,238 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-23 09:17:58,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:58,240 INFO L225 Difference]: With dead ends: 271 [2020-12-23 09:17:58,241 INFO L226 Difference]: Without dead ends: 219 [2020-12-23 09:17:58,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:17:58,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-12-23 09:17:58,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2020-12-23 09:17:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-23 09:17:58,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2020-12-23 09:17:58,263 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2020-12-23 09:17:58,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:58,264 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2020-12-23 09:17:58,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:58,264 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2020-12-23 09:17:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 09:17:58,265 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:58,265 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:58,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:17:58,266 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:58,267 INFO L82 PathProgramCache]: Analyzing trace with hash 272516125, now seen corresponding path program 1 times [2020-12-23 09:17:58,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:58,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347521041] [2020-12-23 09:17:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:58,357 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 09:17:58,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347521041] [2020-12-23 09:17:58,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:58,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:17:58,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033521315] [2020-12-23 09:17:58,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:58,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:58,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:58,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:58,362 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2020-12-23 09:17:58,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:58,526 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2020-12-23 09:17:58,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:17:58,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-23 09:17:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:58,532 INFO L225 Difference]: With dead ends: 376 [2020-12-23 09:17:58,532 INFO L226 Difference]: Without dead ends: 280 [2020-12-23 09:17:58,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-23 09:17:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-12-23 09:17:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-12-23 09:17:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-23 09:17:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2020-12-23 09:17:58,578 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2020-12-23 09:17:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:58,580 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2020-12-23 09:17:58,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2020-12-23 09:17:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 09:17:58,585 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:58,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:58,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:17:58,586 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:58,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:58,587 INFO L82 PathProgramCache]: Analyzing trace with hash -824557763, now seen corresponding path program 1 times [2020-12-23 09:17:58,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:58,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327744377] [2020-12-23 09:17:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:58,663 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 09:17:58,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327744377] [2020-12-23 09:17:58,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:58,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:17:58,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913290582] [2020-12-23 09:17:58,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:58,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:58,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:58,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:58,666 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2020-12-23 09:17:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:58,721 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2020-12-23 09:17:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:17:58,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-12-23 09:17:58,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:58,724 INFO L225 Difference]: With dead ends: 273 [2020-12-23 09:17:58,724 INFO L226 Difference]: Without dead ends: 178 [2020-12-23 09:17:58,725 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 09:17:58,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-23 09:17:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2020-12-23 09:17:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-23 09:17:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2020-12-23 09:17:58,740 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2020-12-23 09:17:58,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:58,740 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2020-12-23 09:17:58,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:58,741 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2020-12-23 09:17:58,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 09:17:58,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:58,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:58,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:17:58,743 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:58,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:58,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1835675013, now seen corresponding path program 1 times [2020-12-23 09:17:58,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:58,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24881059] [2020-12-23 09:17:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:58,798 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 09:17:58,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24881059] [2020-12-23 09:17:58,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:58,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:17:58,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077803428] [2020-12-23 09:17:58,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 09:17:58,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:58,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 09:17:58,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 09:17:58,801 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 4 states. [2020-12-23 09:17:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:58,836 INFO L93 Difference]: Finished difference Result 255 states and 347 transitions. [2020-12-23 09:17:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 09:17:58,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-12-23 09:17:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:58,838 INFO L225 Difference]: With dead ends: 255 [2020-12-23 09:17:58,838 INFO L226 Difference]: Without dead ends: 154 [2020-12-23 09:17:58,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 09:17:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-23 09:17:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 112. [2020-12-23 09:17:58,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-12-23 09:17:58,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2020-12-23 09:17:58,851 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2020-12-23 09:17:58,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:58,852 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-12-23 09:17:58,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 09:17:58,852 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2020-12-23 09:17:58,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-23 09:17:58,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:58,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:58,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:17:58,854 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:58,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:58,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1438223929, now seen corresponding path program 1 times [2020-12-23 09:17:58,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:58,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815872235] [2020-12-23 09:17:58,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:58,902 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 09:17:58,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815872235] [2020-12-23 09:17:58,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:58,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:17:58,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480218861] [2020-12-23 09:17:58,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:58,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:58,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:58,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:58,905 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 3 states. [2020-12-23 09:17:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:58,934 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2020-12-23 09:17:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:58,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2020-12-23 09:17:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:58,936 INFO L225 Difference]: With dead ends: 265 [2020-12-23 09:17:58,936 INFO L226 Difference]: Without dead ends: 160 [2020-12-23 09:17:58,936 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 09:17:58,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-12-23 09:17:58,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-12-23 09:17:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-12-23 09:17:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2020-12-23 09:17:58,954 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 35 [2020-12-23 09:17:58,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:58,954 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2020-12-23 09:17:58,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2020-12-23 09:17:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-23 09:17:58,955 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:58,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:58,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:17:58,956 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:58,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:58,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1113565433, now seen corresponding path program 1 times [2020-12-23 09:17:58,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:58,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710437984] [2020-12-23 09:17:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:59,008 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 09:17:59,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710437984] [2020-12-23 09:17:59,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:59,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:17:59,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625325158] [2020-12-23 09:17:59,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:59,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:59,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:59,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:59,011 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand 3 states. [2020-12-23 09:17:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:59,053 INFO L93 Difference]: Finished difference Result 233 states and 307 transitions. [2020-12-23 09:17:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:59,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-12-23 09:17:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:59,056 INFO L225 Difference]: With dead ends: 233 [2020-12-23 09:17:59,056 INFO L226 Difference]: Without dead ends: 231 [2020-12-23 09:17:59,056 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 09:17:59,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-12-23 09:17:59,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 192. [2020-12-23 09:17:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-12-23 09:17:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 256 transitions. [2020-12-23 09:17:59,078 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 256 transitions. Word has length 36 [2020-12-23 09:17:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:59,078 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 256 transitions. [2020-12-23 09:17:59,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 256 transitions. [2020-12-23 09:17:59,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-23 09:17:59,080 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:59,080 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:59,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:17:59,080 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:59,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:59,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1991742786, now seen corresponding path program 1 times [2020-12-23 09:17:59,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:59,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338931660] [2020-12-23 09:17:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:59,177 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-23 09:17:59,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338931660] [2020-12-23 09:17:59,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:59,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:17:59,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250340060] [2020-12-23 09:17:59,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:17:59,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:59,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:17:59,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:17:59,180 INFO L87 Difference]: Start difference. First operand 192 states and 256 transitions. Second operand 6 states. [2020-12-23 09:17:59,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:59,415 INFO L93 Difference]: Finished difference Result 549 states and 729 transitions. [2020-12-23 09:17:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-23 09:17:59,415 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-12-23 09:17:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:59,417 INFO L225 Difference]: With dead ends: 549 [2020-12-23 09:17:59,418 INFO L226 Difference]: Without dead ends: 364 [2020-12-23 09:17:59,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-12-23 09:17:59,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-12-23 09:17:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 180. [2020-12-23 09:17:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-23 09:17:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2020-12-23 09:17:59,441 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 54 [2020-12-23 09:17:59,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:59,441 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2020-12-23 09:17:59,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:17:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2020-12-23 09:17:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-23 09:17:59,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:59,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2020-12-23 09:17:59,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-23 09:17:59,443 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:59,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:59,444 INFO L82 PathProgramCache]: Analyzing trace with hash 338659975, now seen corresponding path program 1 times [2020-12-23 09:17:59,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:59,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569329026] [2020-12-23 09:17:59,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:17:59,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:17:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:17:59,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:17:59,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 09:17:59,670 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 09:17:59,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-23 09:17:59,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:17:59 BoogieIcfgContainer [2020-12-23 09:17:59,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 09:17:59,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 09:17:59,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 09:17:59,902 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 09:17:59,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:17:56" (3/4) ... [2020-12-23 09:17:59,906 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 09:18:00,149 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec2_product42.cil.c-witness.graphml [2020-12-23 09:18:00,150 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 09:18:00,152 INFO L168 Benchmark]: Toolchain (without parser) took 5529.59 ms. Allocated memory was 154.1 MB in the beginning and 205.5 MB in the end (delta: 51.4 MB). Free memory was 128.6 MB in the beginning and 171.9 MB in the end (delta: -43.3 MB). Peak memory consumption was 116.5 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,153 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 154.1 MB. Free memory was 126.9 MB in the beginning and 126.8 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 09:18:00,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.68 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 106.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 193.09 ms. Allocated memory is still 154.1 MB. Free memory was 106.9 MB in the beginning and 135.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,154 INFO L168 Benchmark]: Boogie Preprocessor took 105.58 ms. Allocated memory is still 154.1 MB. Free memory was 135.6 MB in the beginning and 133.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,155 INFO L168 Benchmark]: RCFGBuilder took 1135.07 ms. Allocated memory is still 154.1 MB. Free memory was 133.5 MB in the beginning and 76.3 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,155 INFO L168 Benchmark]: TraceAbstraction took 3128.52 ms. Allocated memory was 154.1 MB in the beginning and 205.5 MB in the end (delta: 51.4 MB). Free memory was 75.8 MB in the beginning and 86.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 42.3 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,156 INFO L168 Benchmark]: Witness Printer took 248.49 ms. Allocated memory is still 205.5 MB. Free memory was 86.5 MB in the beginning and 171.9 MB in the end (delta: -85.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-23 09:18:00,158 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 154.1 MB. Free memory was 126.9 MB in the beginning and 126.8 MB in the end (delta: 80.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 694.68 ms. Allocated memory is still 154.1 MB. Free memory was 128.5 MB in the beginning and 106.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 193.09 ms. Allocated memory is still 154.1 MB. Free memory was 106.9 MB in the beginning and 135.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 105.58 ms. Allocated memory is still 154.1 MB. Free memory was 135.6 MB in the beginning and 133.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1135.07 ms. Allocated memory is still 154.1 MB. Free memory was 133.5 MB in the beginning and 76.3 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3128.52 ms. Allocated memory was 154.1 MB in the beginning and 205.5 MB in the end (delta: 51.4 MB). Free memory was 75.8 MB in the beginning and 86.5 MB in the end (delta: -10.7 MB). Peak memory consumption was 42.3 MB. Max. memory is 8.0 GB. * Witness Printer took 248.49 ms. Allocated memory is still 205.5 MB. Free memory was 86.5 MB in the beginning and 171.9 MB in the end (delta: -85.4 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 846]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L488] int pumpRunning = 0; [L489] int systemActive = 1; [L668] int methAndRunningLastTime ; [L745] int cleanupTimeShifts = 4; [L852] int waterLevel = 1; [L853] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; [L820] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L736] int retValue_acc ; [L739] retValue_acc = 1 [L740] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] tmp = valid_product() [L828] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L673] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int splverifierCounter ; [L415] int tmp ; [L416] int tmp___0 ; [L417] int tmp___1 ; [L418] int tmp___2 ; [L421] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] tmp = __VERIFIER_nondet_int() [L433] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] COND TRUE waterLevel < 2 [L871] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] COND TRUE ! pumpRunning [L640] int retValue_acc ; [L641] int tmp ; [L642] int tmp___0 ; [L932] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L935] COND FALSE !(waterLevel < 2) [L939] retValue_acc = 0 [L940] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] tmp = isHighWaterSensorDry() [L648] COND FALSE !(\read(tmp)) [L651] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] retValue_acc = tmp___0 [L654] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L530] tmp = isHighWaterLevel() [L532] COND TRUE \read(tmp) [L559] int tmp ; [L584] int retValue_acc ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] retValue_acc = isMethaneLevelCritical() [L590] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] tmp = isMethaneAlarm() [L565] COND FALSE !(\read(tmp)) [L553] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] tmp = isMethaneLevelCritical() [L685] COND FALSE !(\read(tmp)) [L701] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] COND FALSE !(\read(methaneLevelCritical)) [L885] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L496] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L528] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] COND FALSE !(\read(methAndRunningLastTime)) [L695] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L528] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L690] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L846] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 91 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 835 SDtfs, 1033 SDslu, 1285 SDs, 0 SdLazy, 174 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=10, 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, 11 MinimizatonAttempts, 631 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 20703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 17/17 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...