/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_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 09:17:01,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 09:17:02,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 09:17:02,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 09:17:02,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 09:17:02,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 09:17:02,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 09:17:02,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 09:17:02,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 09:17:02,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 09:17:02,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 09:17:02,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 09:17:02,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 09:17:02,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 09:17:02,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 09:17:02,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 09:17:02,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 09:17:02,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 09:17:02,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 09:17:02,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 09:17:02,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 09:17:02,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 09:17:02,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 09:17:02,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 09:17:02,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 09:17:02,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 09:17:02,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 09:17:02,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 09:17:02,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 09:17:02,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 09:17:02,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 09:17:02,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 09:17:02,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 09:17:02,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 09:17:02,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 09:17:02,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 09:17:02,175 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 09:17:02,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 09:17:02,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 09:17:02,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 09:17:02,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 09:17:02,180 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 09:17:02,208 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 09:17:02,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 09:17:02,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 09:17:02,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 09:17:02,210 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 09:17:02,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 09:17:02,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 09:17:02,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 09:17:02,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 09:17:02,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 09:17:02,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 09:17:02,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 09:17:02,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 09:17:02,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 09:17:02,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 09:17:02,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 09:17:02,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 09:17:02,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 09:17:02,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 09:17:02,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 09:17:02,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 09:17:02,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 09:17:02,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 09:17:02,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 09:17:02,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 09:17:02,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 09:17:02,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 09:17:02,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 09:17:02,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 09:17:02,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 09:17:02,692 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 09:17:02,693 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-12-23 09:17:02,788 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/78de3686e/b90289374cf54945be4734b735cf14aa/FLAG3c7799d08 [2020-12-23 09:17:03,586 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 09:17:03,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2020-12-23 09:17:03,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/78de3686e/b90289374cf54945be4734b735cf14aa/FLAG3c7799d08 [2020-12-23 09:17:03,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/78de3686e/b90289374cf54945be4734b735cf14aa [2020-12-23 09:17:03,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 09:17:03,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 09:17:03,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 09:17:03,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 09:17:03,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 09:17:03,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:17:03" (1/1) ... [2020-12-23 09:17:03,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d41dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:03, skipping insertion in model container [2020-12-23 09:17:03,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 09:17:03" (1/1) ... [2020-12-23 09:17:03,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 09:17:03,982 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[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] 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[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] [2020-12-23 09:17:04,298 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_spec1_product56.cil.c[16355,16368] 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~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] 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~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] [2020-12-23 09:17:04,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:17:04,364 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[~tmp~5,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~7,] 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[~tmp~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~8,] left hand side expression in assignment: lhs: VariableLHS[~tmp~9,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~3,] [2020-12-23 09:17:04,554 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_spec1_product56.cil.c[16355,16368] 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~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~9,] 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~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~12,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~13,] [2020-12-23 09:17:04,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 09:17:04,632 INFO L208 MainTranslator]: Completed translation [2020-12-23 09:17:04,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04 WrapperNode [2020-12-23 09:17:04,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 09:17:04,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 09:17:04,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 09:17:04,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 09:17:04,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 09:17:04,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 09:17:04,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 09:17:04,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 09:17:04,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (1/1) ... [2020-12-23 09:17:04,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 09:17:04,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 09:17:04,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 09:17:04,872 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 09:17:04,873 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (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 09:17:04,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 09:17:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 09:17:04,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 09:17:04,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 09:17:06,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 09:17:06,313 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2020-12-23 09:17:06,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:17:06 BoogieIcfgContainer [2020-12-23 09:17:06,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 09:17:06,317 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 09:17:06,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 09:17:06,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 09:17:06,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 09:17:03" (1/3) ... [2020-12-23 09:17:06,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532b2897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:17:06, skipping insertion in model container [2020-12-23 09:17:06,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 09:17:04" (2/3) ... [2020-12-23 09:17:06,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@532b2897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 09:17:06, skipping insertion in model container [2020-12-23 09:17:06,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:17:06" (3/3) ... [2020-12-23 09:17:06,325 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-12-23 09:17:06,332 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 09:17:06,338 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-23 09:17:06,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-23 09:17:06,389 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 09:17:06,390 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 09:17:06,390 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 09:17:06,390 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 09:17:06,390 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 09:17:06,390 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 09:17:06,390 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 09:17:06,391 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 09:17:06,413 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2020-12-23 09:17:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 09:17:06,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:06,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:06,422 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:06,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1937289636, now seen corresponding path program 1 times [2020-12-23 09:17:06,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:06,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505610010] [2020-12-23 09:17:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:06,728 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 09:17:06,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505610010] [2020-12-23 09:17:06,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:06,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:17:06,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142785624] [2020-12-23 09:17:06,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 09:17:06,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:06,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 09:17:06,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 09:17:06,755 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2020-12-23 09:17:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:06,803 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2020-12-23 09:17:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 09:17:06,805 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-23 09:17:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:06,820 INFO L225 Difference]: With dead ends: 376 [2020-12-23 09:17:06,820 INFO L226 Difference]: Without dead ends: 187 [2020-12-23 09:17:06,827 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 09:17:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-23 09:17:06,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-12-23 09:17:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-12-23 09:17:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2020-12-23 09:17:06,929 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2020-12-23 09:17:06,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:06,930 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2020-12-23 09:17:06,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 09:17:06,930 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2020-12-23 09:17:06,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-23 09:17:06,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:06,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:06,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 09:17:06,933 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:06,935 INFO L82 PathProgramCache]: Analyzing trace with hash 890532739, now seen corresponding path program 1 times [2020-12-23 09:17:06,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:06,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755002689] [2020-12-23 09:17:06,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:07,059 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 09:17:07,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755002689] [2020-12-23 09:17:07,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:07,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 09:17:07,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170067256] [2020-12-23 09:17:07,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:07,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:07,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:07,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:07,064 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 3 states. [2020-12-23 09:17:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:07,081 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2020-12-23 09:17:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:07,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-23 09:17:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:07,083 INFO L225 Difference]: With dead ends: 187 [2020-12-23 09:17:07,083 INFO L226 Difference]: Without dead ends: 73 [2020-12-23 09:17:07,085 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 09:17:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-23 09:17:07,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-23 09:17:07,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-23 09:17:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2020-12-23 09:17:07,092 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2020-12-23 09:17:07,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:07,092 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2020-12-23 09:17:07,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2020-12-23 09:17:07,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-23 09:17:07,094 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:07,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 09:17:07,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 09:17:07,094 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:07,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2020-12-23 09:17:07,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:07,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206682780] [2020-12-23 09:17:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:07,262 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 09:17:07,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206682780] [2020-12-23 09:17:07,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:07,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:17:07,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71809984] [2020-12-23 09:17:07,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:07,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:07,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:07,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:07,265 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 5 states. [2020-12-23 09:17:07,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:07,367 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2020-12-23 09:17:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:17:07,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-23 09:17:07,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:07,372 INFO L225 Difference]: With dead ends: 163 [2020-12-23 09:17:07,373 INFO L226 Difference]: Without dead ends: 96 [2020-12-23 09:17:07,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-23 09:17:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-12-23 09:17:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2020-12-23 09:17:07,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-23 09:17:07,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2020-12-23 09:17:07,395 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 22 [2020-12-23 09:17:07,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:07,401 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2020-12-23 09:17:07,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2020-12-23 09:17:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 09:17:07,404 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:07,404 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 09:17:07,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 09:17:07,404 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:07,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:07,406 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2020-12-23 09:17:07,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:07,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909399855] [2020-12-23 09:17:07,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:07,518 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 09:17:07,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909399855] [2020-12-23 09:17:07,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:07,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:17:07,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711660718] [2020-12-23 09:17:07,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:07,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:07,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:07,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:07,525 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2020-12-23 09:17:07,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:07,581 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2020-12-23 09:17:07,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:07,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-23 09:17:07,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:07,584 INFO L225 Difference]: With dead ends: 187 [2020-12-23 09:17:07,584 INFO L226 Difference]: Without dead ends: 101 [2020-12-23 09:17:07,585 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 09:17:07,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-23 09:17:07,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-12-23 09:17:07,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-23 09:17:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2020-12-23 09:17:07,601 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 25 [2020-12-23 09:17:07,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:07,601 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2020-12-23 09:17:07,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2020-12-23 09:17:07,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-23 09:17:07,602 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:07,602 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 09:17:07,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 09:17:07,603 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:07,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:07,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2020-12-23 09:17:07,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:07,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648707217] [2020-12-23 09:17:07,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:07,710 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 09:17:07,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648707217] [2020-12-23 09:17:07,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:07,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:17:07,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884827436] [2020-12-23 09:17:07,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:07,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:07,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:07,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:07,714 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2020-12-23 09:17:07,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:07,847 INFO L93 Difference]: Finished difference Result 485 states and 703 transitions. [2020-12-23 09:17:07,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-23 09:17:07,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-23 09:17:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:07,851 INFO L225 Difference]: With dead ends: 485 [2020-12-23 09:17:07,851 INFO L226 Difference]: Without dead ends: 392 [2020-12-23 09:17:07,852 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 09:17:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-12-23 09:17:07,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 184. [2020-12-23 09:17:07,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-12-23 09:17:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2020-12-23 09:17:07,879 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 25 [2020-12-23 09:17:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:07,880 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2020-12-23 09:17:07,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2020-12-23 09:17:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-23 09:17:07,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:07,882 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] [2020-12-23 09:17:07,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-23 09:17:07,882 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:07,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:07,883 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2020-12-23 09:17:07,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:07,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210701604] [2020-12-23 09:17:07,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:07,946 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 09:17:07,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210701604] [2020-12-23 09:17:07,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:07,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 09:17:07,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188763487] [2020-12-23 09:17:07,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:07,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:07,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:07,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:07,950 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 5 states. [2020-12-23 09:17:08,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:08,124 INFO L93 Difference]: Finished difference Result 522 states and 741 transitions. [2020-12-23 09:17:08,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-23 09:17:08,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-23 09:17:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:08,128 INFO L225 Difference]: With dead ends: 522 [2020-12-23 09:17:08,128 INFO L226 Difference]: Without dead ends: 520 [2020-12-23 09:17:08,130 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 09:17:08,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-12-23 09:17:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 184. [2020-12-23 09:17:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-12-23 09:17:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2020-12-23 09:17:08,163 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 26 [2020-12-23 09:17:08,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:08,163 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2020-12-23 09:17:08,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2020-12-23 09:17:08,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 09:17:08,170 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:08,170 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 09:17:08,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-23 09:17:08,170 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:08,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2020-12-23 09:17:08,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:08,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843138280] [2020-12-23 09:17:08,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:08,252 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 09:17:08,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843138280] [2020-12-23 09:17:08,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:08,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 09:17:08,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478091538] [2020-12-23 09:17:08,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 09:17:08,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:08,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 09:17:08,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 09:17:08,267 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand 5 states. [2020-12-23 09:17:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:08,364 INFO L93 Difference]: Finished difference Result 534 states and 740 transitions. [2020-12-23 09:17:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-23 09:17:08,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-23 09:17:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:08,367 INFO L225 Difference]: With dead ends: 534 [2020-12-23 09:17:08,367 INFO L226 Difference]: Without dead ends: 356 [2020-12-23 09:17:08,369 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 09:17:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-12-23 09:17:08,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 202. [2020-12-23 09:17:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-12-23 09:17:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 276 transitions. [2020-12-23 09:17:08,389 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 276 transitions. Word has length 32 [2020-12-23 09:17:08,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:08,391 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 276 transitions. [2020-12-23 09:17:08,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 09:17:08,392 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 276 transitions. [2020-12-23 09:17:08,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 09:17:08,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:08,398 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 09:17:08,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-23 09:17:08,399 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:08,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2020-12-23 09:17:08,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:08,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055206946] [2020-12-23 09:17:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:08,498 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 09:17:08,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055206946] [2020-12-23 09:17:08,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:08,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-23 09:17:08,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242940623] [2020-12-23 09:17:08,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-23 09:17:08,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:08,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-23 09:17:08,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-23 09:17:08,501 INFO L87 Difference]: Start difference. First operand 202 states and 276 transitions. Second operand 6 states. [2020-12-23 09:17:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:08,619 INFO L93 Difference]: Finished difference Result 584 states and 790 transitions. [2020-12-23 09:17:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-23 09:17:08,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-12-23 09:17:08,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:08,623 INFO L225 Difference]: With dead ends: 584 [2020-12-23 09:17:08,623 INFO L226 Difference]: Without dead ends: 388 [2020-12-23 09:17:08,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-23 09:17:08,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-12-23 09:17:08,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 214. [2020-12-23 09:17:08,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-23 09:17:08,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 288 transitions. [2020-12-23 09:17:08,659 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 288 transitions. Word has length 32 [2020-12-23 09:17:08,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:08,661 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 288 transitions. [2020-12-23 09:17:08,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-23 09:17:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2020-12-23 09:17:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-23 09:17:08,662 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:08,662 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 09:17:08,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-23 09:17:08,662 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:08,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:08,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2020-12-23 09:17:08,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:08,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64857604] [2020-12-23 09:17:08,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 09:17:08,724 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 09:17:08,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64857604] [2020-12-23 09:17:08,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 09:17:08,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 09:17:08,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137979690] [2020-12-23 09:17:08,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 09:17:08,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 09:17:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 09:17:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 09:17:08,733 INFO L87 Difference]: Start difference. First operand 214 states and 288 transitions. Second operand 3 states. [2020-12-23 09:17:08,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 09:17:08,794 INFO L93 Difference]: Finished difference Result 512 states and 688 transitions. [2020-12-23 09:17:08,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 09:17:08,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-23 09:17:08,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 09:17:08,797 INFO L225 Difference]: With dead ends: 512 [2020-12-23 09:17:08,798 INFO L226 Difference]: Without dead ends: 304 [2020-12-23 09:17:08,799 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 09:17:08,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-12-23 09:17:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-12-23 09:17:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-12-23 09:17:08,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 400 transitions. [2020-12-23 09:17:08,836 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 400 transitions. Word has length 32 [2020-12-23 09:17:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 09:17:08,836 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 400 transitions. [2020-12-23 09:17:08,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 09:17:08,836 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 400 transitions. [2020-12-23 09:17:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-23 09:17:08,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 09:17:08,838 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] [2020-12-23 09:17:08,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-23 09:17:08,840 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 09:17:08,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 09:17:08,840 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2020-12-23 09:17:08,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 09:17:08,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603084670] [2020-12-23 09:17:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 09:17:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:17:08,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:17:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 09:17:09,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 09:17:09,099 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 09:17:09,099 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 09:17:09,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-23 09:17:09,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 09:17:09 BoogieIcfgContainer [2020-12-23 09:17:09,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 09:17:09,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 09:17:09,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 09:17:09,247 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 09:17:09,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 09:17:06" (3/4) ... [2020-12-23 09:17:09,250 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 09:17:09,401 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec1_product56.cil.c-witness.graphml [2020-12-23 09:17:09,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 09:17:09,405 INFO L168 Benchmark]: Toolchain (without parser) took 5518.12 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 134.6 MB in the beginning and 165.1 MB in the end (delta: -30.5 MB). Peak memory consumption was 110.6 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,406 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 159.4 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 09:17:09,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.16 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 111.5 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.19 ms. Allocated memory is still 159.4 MB. Free memory was 111.5 MB in the beginning and 138.6 MB in the end (delta: -27.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,413 INFO L168 Benchmark]: Boogie Preprocessor took 97.74 ms. Allocated memory is still 159.4 MB. Free memory was 138.6 MB in the beginning and 135.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,413 INFO L168 Benchmark]: RCFGBuilder took 1443.90 ms. Allocated memory is still 159.4 MB. Free memory was 135.5 MB in the beginning and 138.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,414 INFO L168 Benchmark]: TraceAbstraction took 2926.97 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 138.0 MB in the beginning and 72.2 MB in the end (delta: 65.8 MB). Peak memory consumption was 98.3 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,415 INFO L168 Benchmark]: Witness Printer took 156.64 ms. Allocated memory is still 191.9 MB. Free memory was 72.2 MB in the beginning and 165.1 MB in the end (delta: -92.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2020-12-23 09:17:09,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 159.4 MB. Free memory is still 134.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 744.16 ms. Allocated memory is still 159.4 MB. Free memory was 134.5 MB in the beginning and 111.5 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 138.19 ms. Allocated memory is still 159.4 MB. Free memory was 111.5 MB in the beginning and 138.6 MB in the end (delta: -27.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 97.74 ms. Allocated memory is still 159.4 MB. Free memory was 138.6 MB in the beginning and 135.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1443.90 ms. Allocated memory is still 159.4 MB. Free memory was 135.5 MB in the beginning and 138.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 88.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2926.97 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 138.0 MB in the beginning and 72.2 MB in the end (delta: 65.8 MB). Peak memory consumption was 98.3 MB. Max. memory is 8.0 GB. * Witness Printer took 156.64 ms. Allocated memory is still 191.9 MB. Free memory was 72.2 MB in the beginning and 165.1 MB in the end (delta: -92.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 808]: 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; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] int retValue_acc ; [L887] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L734] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] COND TRUE \read(systemActive) [L581] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) [L555] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] COND FALSE !(\read(pumpRunning)) [L529] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND TRUE ! pumpRunning [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L990] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L609] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L779] int tmp ; [L780] int tmp___0 ; [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L808] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 191 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1182 SDtfs, 1711 SDslu, 1365 SDs, 0 SdLazy, 207 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 878 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...