/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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 19:10:27,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 19:10:27,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 19:10:27,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 19:10:27,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 19:10:27,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 19:10:27,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 19:10:27,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 19:10:27,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 19:10:27,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 19:10:27,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 19:10:27,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 19:10:27,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 19:10:27,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 19:10:27,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 19:10:27,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 19:10:27,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 19:10:28,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 19:10:28,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 19:10:28,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 19:10:28,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 19:10:28,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 19:10:28,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 19:10:28,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 19:10:28,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 19:10:28,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 19:10:28,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 19:10:28,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 19:10:28,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 19:10:28,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 19:10:28,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 19:10:28,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 19:10:28,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 19:10:28,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 19:10:28,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 19:10:28,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 19:10:28,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 19:10:28,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 19:10:28,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 19:10:28,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 19:10:28,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 19:10:28,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 19:10:28,070 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 19:10:28,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 19:10:28,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 19:10:28,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 19:10:28,072 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 19:10:28,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 19:10:28,073 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 19:10:28,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 19:10:28,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 19:10:28,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 19:10:28,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 19:10:28,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 19:10:28,075 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 19:10:28,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 19:10:28,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 19:10:28,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 19:10:28,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 19:10:28,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 19:10:28,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 19:10:28,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 19:10:28,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 19:10:28,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 19:10:28,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 19:10:28,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 19:10:28,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 19:10:28,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 19:10:28,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 19:10:28,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 19:10:28,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 19:10:28,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 19:10:28,463 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 19:10:28,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-01-06 19:10:28,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e7cd99dd5/b61732ad4b7642e48ffbfd143cff2ad9/FLAG5b0bf2c05 [2021-01-06 19:10:29,221 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 19:10:29,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-01-06 19:10:29,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e7cd99dd5/b61732ad4b7642e48ffbfd143cff2ad9/FLAG5b0bf2c05 [2021-01-06 19:10:29,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/e7cd99dd5/b61732ad4b7642e48ffbfd143cff2ad9 [2021-01-06 19:10:29,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 19:10:29,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 19:10:29,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 19:10:29,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 19:10:29,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 19:10:29,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:10:29" (1/1) ... [2021-01-06 19:10:29,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cb877b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:29, skipping insertion in model container [2021-01-06 19:10:29,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 07:10:29" (1/1) ... [2021-01-06 19:10:29,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 19:10:29,607 INFO L178 MainTranslator]: Built tables and reachable declarations 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] [2021-01-06 19:10:29,846 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_product43.cil.c[6057,6070] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] 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~7,] 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~8,] 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~7,] 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~7,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] 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~8,] 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~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] [2021-01-06 19:10:30,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:10:30,033 INFO L203 MainTranslator]: Completed pre-run 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~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~1,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp~0,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~tmp~1,] left hand side expression in assignment: lhs: VariableLHS[~pumpRunning~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~3,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp~2,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~5,] left hand side expression in assignment: lhs: VariableLHS[~systemActive~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~splverifierCounter~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~3,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~1,] left hand side expression in assignment: lhs: VariableLHS[~tmp___2~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp___1~0,] [2021-01-06 19:10:30,079 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_product43.cil.c[6057,6070] left hand side expression in assignment: lhs: VariableLHS[~tmp~4,] left hand side expression in assignment: lhs: VariableLHS[~tmp___0~2,] 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~5,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~6,] left hand side expression in assignment: lhs: VariableLHS[~excep~0,] left hand side expression in assignment: lhs: VariableLHS[~tmp~6,] 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~7,] 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~8,] 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~7,] 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~7,] left hand side expression in assignment: lhs: VariableLHS[~mem_24~0,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~7,] 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~8,] 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~9,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~10,] left hand side expression in assignment: lhs: VariableLHS[~retValue_acc~11,] [2021-01-06 19:10:30,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 19:10:30,177 INFO L208 MainTranslator]: Completed translation [2021-01-06 19:10:30,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30 WrapperNode [2021-01-06 19:10:30,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 19:10:30,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 19:10:30,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 19:10:30,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 19:10:30,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 19:10:30,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 19:10:30,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 19:10:30,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 19:10:30,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (1/1) ... [2021-01-06 19:10:30,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 19:10:30,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 19:10:30,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 19:10:30,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 19:10:30,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (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 [2021-01-06 19:10:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 19:10:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 19:10:30,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 19:10:30,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 19:10:31,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 19:10:31,515 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-01-06 19:10:31,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:10:31 BoogieIcfgContainer [2021-01-06 19:10:31,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 19:10:31,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 19:10:31,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 19:10:31,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 19:10:31,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 07:10:29" (1/3) ... [2021-01-06 19:10:31,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c267c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:10:31, skipping insertion in model container [2021-01-06 19:10:31,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 07:10:30" (2/3) ... [2021-01-06 19:10:31,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c267c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 07:10:31, skipping insertion in model container [2021-01-06 19:10:31,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:10:31" (3/3) ... [2021-01-06 19:10:31,527 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2021-01-06 19:10:31,534 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 19:10:31,540 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-01-06 19:10:31,570 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 19:10:31,606 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 19:10:31,606 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 19:10:31,607 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 19:10:31,607 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 19:10:31,607 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 19:10:31,607 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 19:10:31,608 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 19:10:31,608 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 19:10:31,628 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2021-01-06 19:10:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-01-06 19:10:31,635 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:31,636 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:10:31,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:31,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:31,643 INFO L82 PathProgramCache]: Analyzing trace with hash 929673937, now seen corresponding path program 1 times [2021-01-06 19:10:31,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:31,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294784249] [2021-01-06 19:10:31,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:32,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294784249] [2021-01-06 19:10:32,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:32,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:10:32,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707833683] [2021-01-06 19:10:32,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 19:10:32,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:32,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 19:10:32,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 19:10:32,057 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2021-01-06 19:10:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:32,092 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2021-01-06 19:10:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 19:10:32,093 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-01-06 19:10:32,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:32,107 INFO L225 Difference]: With dead ends: 172 [2021-01-06 19:10:32,107 INFO L226 Difference]: Without dead ends: 85 [2021-01-06 19:10:32,111 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 [2021-01-06 19:10:32,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-01-06 19:10:32,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-01-06 19:10:32,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-01-06 19:10:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2021-01-06 19:10:32,161 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2021-01-06 19:10:32,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:32,162 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2021-01-06 19:10:32,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 19:10:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2021-01-06 19:10:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 19:10:32,164 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:32,164 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:10:32,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 19:10:32,164 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:32,166 INFO L82 PathProgramCache]: Analyzing trace with hash -117082960, now seen corresponding path program 1 times [2021-01-06 19:10:32,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:32,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429917470] [2021-01-06 19:10:32,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:32,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429917470] [2021-01-06 19:10:32,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:32,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 19:10:32,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292151050] [2021-01-06 19:10:32,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:10:32,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:32,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:10:32,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:10:32,268 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2021-01-06 19:10:32,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:32,281 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2021-01-06 19:10:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:10:32,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-01-06 19:10:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:32,283 INFO L225 Difference]: With dead ends: 85 [2021-01-06 19:10:32,283 INFO L226 Difference]: Without dead ends: 39 [2021-01-06 19:10:32,284 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 [2021-01-06 19:10:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-01-06 19:10:32,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-01-06 19:10:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-01-06 19:10:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-01-06 19:10:32,297 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2021-01-06 19:10:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:32,298 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-01-06 19:10:32,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:10:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-01-06 19:10:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-01-06 19:10:32,301 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:32,301 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] [2021-01-06 19:10:32,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 19:10:32,302 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:32,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:32,303 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2021-01-06 19:10:32,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:32,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774566434] [2021-01-06 19:10:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:32,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774566434] [2021-01-06 19:10:32,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:32,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:10:32,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550169587] [2021-01-06 19:10:32,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:10:32,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:32,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:10:32,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:10:32,442 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2021-01-06 19:10:32,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:32,466 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2021-01-06 19:10:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:10:32,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-01-06 19:10:32,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:32,468 INFO L225 Difference]: With dead ends: 105 [2021-01-06 19:10:32,469 INFO L226 Difference]: Without dead ends: 72 [2021-01-06 19:10:32,469 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 [2021-01-06 19:10:32,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-01-06 19:10:32,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-01-06 19:10:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-01-06 19:10:32,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2021-01-06 19:10:32,482 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2021-01-06 19:10:32,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:32,483 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2021-01-06 19:10:32,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:10:32,483 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2021-01-06 19:10:32,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-01-06 19:10:32,484 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:32,485 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] [2021-01-06 19:10:32,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 19:10:32,485 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:32,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:32,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2021-01-06 19:10:32,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:32,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889656588] [2021-01-06 19:10:32,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:32,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:32,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889656588] [2021-01-06 19:10:32,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:32,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:10:32,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903191994] [2021-01-06 19:10:32,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:10:32,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:32,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:10:32,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:10:32,626 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2021-01-06 19:10:32,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:32,671 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2021-01-06 19:10:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:10:32,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-01-06 19:10:32,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:32,674 INFO L225 Difference]: With dead ends: 171 [2021-01-06 19:10:32,674 INFO L226 Difference]: Without dead ends: 109 [2021-01-06 19:10:32,675 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 [2021-01-06 19:10:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-01-06 19:10:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2021-01-06 19:10:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-01-06 19:10:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2021-01-06 19:10:32,703 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2021-01-06 19:10:32,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:32,704 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2021-01-06 19:10:32,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:10:32,707 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2021-01-06 19:10:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-01-06 19:10:32,708 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:32,708 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] [2021-01-06 19:10:32,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 19:10:32,709 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:32,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:32,710 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2021-01-06 19:10:32,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:32,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654114434] [2021-01-06 19:10:32,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:32,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654114434] [2021-01-06 19:10:32,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:32,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:10:32,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772313494] [2021-01-06 19:10:32,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:10:32,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:10:32,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:10:32,877 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2021-01-06 19:10:33,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:33,087 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2021-01-06 19:10:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 19:10:33,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-01-06 19:10:33,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:33,093 INFO L225 Difference]: With dead ends: 535 [2021-01-06 19:10:33,093 INFO L226 Difference]: Without dead ends: 434 [2021-01-06 19:10:33,095 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 [2021-01-06 19:10:33,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-01-06 19:10:33,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 198. [2021-01-06 19:10:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-01-06 19:10:33,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2021-01-06 19:10:33,173 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 25 [2021-01-06 19:10:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:33,173 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2021-01-06 19:10:33,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:10:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2021-01-06 19:10:33,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-01-06 19:10:33,175 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:33,175 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] [2021-01-06 19:10:33,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 19:10:33,176 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:33,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1044291748, now seen corresponding path program 1 times [2021-01-06 19:10:33,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:33,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570531589] [2021-01-06 19:10:33,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:33,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570531589] [2021-01-06 19:10:33,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:33,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:10:33,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147599559] [2021-01-06 19:10:33,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:10:33,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:33,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:10:33,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:10:33,253 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 5 states. [2021-01-06 19:10:33,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:33,445 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2021-01-06 19:10:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 19:10:33,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-01-06 19:10:33,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:33,452 INFO L225 Difference]: With dead ends: 572 [2021-01-06 19:10:33,453 INFO L226 Difference]: Without dead ends: 570 [2021-01-06 19:10:33,454 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 [2021-01-06 19:10:33,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-01-06 19:10:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 198. [2021-01-06 19:10:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-01-06 19:10:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 281 transitions. [2021-01-06 19:10:33,517 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 281 transitions. Word has length 26 [2021-01-06 19:10:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:33,518 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 281 transitions. [2021-01-06 19:10:33,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:10:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 281 transitions. [2021-01-06 19:10:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:10:33,523 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:33,524 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] [2021-01-06 19:10:33,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 19:10:33,524 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:33,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:33,525 INFO L82 PathProgramCache]: Analyzing trace with hash 895513141, now seen corresponding path program 1 times [2021-01-06 19:10:33,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:33,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913128791] [2021-01-06 19:10:33,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:33,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913128791] [2021-01-06 19:10:33,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:33,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 19:10:33,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835523729] [2021-01-06 19:10:33,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 19:10:33,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:33,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 19:10:33,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:10:33,648 INFO L87 Difference]: Start difference. First operand 198 states and 281 transitions. Second operand 5 states. [2021-01-06 19:10:33,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:33,722 INFO L93 Difference]: Finished difference Result 550 states and 772 transitions. [2021-01-06 19:10:33,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 19:10:33,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-01-06 19:10:33,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:33,725 INFO L225 Difference]: With dead ends: 550 [2021-01-06 19:10:33,725 INFO L226 Difference]: Without dead ends: 358 [2021-01-06 19:10:33,726 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 [2021-01-06 19:10:33,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-01-06 19:10:33,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 210. [2021-01-06 19:10:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-01-06 19:10:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2021-01-06 19:10:33,777 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 33 [2021-01-06 19:10:33,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:33,778 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2021-01-06 19:10:33,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 19:10:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2021-01-06 19:10:33,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:10:33,780 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:33,780 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] [2021-01-06 19:10:33,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 19:10:33,780 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:33,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:33,781 INFO L82 PathProgramCache]: Analyzing trace with hash 308707127, now seen corresponding path program 1 times [2021-01-06 19:10:33,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:33,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359811007] [2021-01-06 19:10:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:33,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359811007] [2021-01-06 19:10:33,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:33,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 19:10:33,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963125824] [2021-01-06 19:10:33,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 19:10:33,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:33,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 19:10:33,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 19:10:33,839 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand 4 states. [2021-01-06 19:10:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:33,894 INFO L93 Difference]: Finished difference Result 510 states and 706 transitions. [2021-01-06 19:10:33,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 19:10:33,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-01-06 19:10:33,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:33,897 INFO L225 Difference]: With dead ends: 510 [2021-01-06 19:10:33,897 INFO L226 Difference]: Without dead ends: 306 [2021-01-06 19:10:33,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 19:10:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-01-06 19:10:33,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 218. [2021-01-06 19:10:33,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2021-01-06 19:10:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2021-01-06 19:10:33,922 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 33 [2021-01-06 19:10:33,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:33,923 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2021-01-06 19:10:33,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 19:10:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2021-01-06 19:10:33,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-01-06 19:10:33,927 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:33,927 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] [2021-01-06 19:10:33,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 19:10:33,928 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:33,928 INFO L82 PathProgramCache]: Analyzing trace with hash -971156551, now seen corresponding path program 1 times [2021-01-06 19:10:33,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:33,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354611722] [2021-01-06 19:10:33,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:34,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354611722] [2021-01-06 19:10:34,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:34,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 19:10:34,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136198041] [2021-01-06 19:10:34,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 19:10:34,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:34,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 19:10:34,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 19:10:34,008 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 3 states. [2021-01-06 19:10:34,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:34,062 INFO L93 Difference]: Finished difference Result 530 states and 726 transitions. [2021-01-06 19:10:34,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 19:10:34,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2021-01-06 19:10:34,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:34,065 INFO L225 Difference]: With dead ends: 530 [2021-01-06 19:10:34,066 INFO L226 Difference]: Without dead ends: 318 [2021-01-06 19:10:34,066 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 [2021-01-06 19:10:34,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-01-06 19:10:34,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-01-06 19:10:34,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-01-06 19:10:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2021-01-06 19:10:34,106 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 33 [2021-01-06 19:10:34,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:34,106 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2021-01-06 19:10:34,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 19:10:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2021-01-06 19:10:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-01-06 19:10:34,111 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:34,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:10:34,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 19:10:34,112 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:34,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:34,113 INFO L82 PathProgramCache]: Analyzing trace with hash 186139387, now seen corresponding path program 1 times [2021-01-06 19:10:34,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:34,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154133522] [2021-01-06 19:10:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 19:10:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 19:10:34,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154133522] [2021-01-06 19:10:34,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 19:10:34,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-06 19:10:34,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300552293] [2021-01-06 19:10:34,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 19:10:34,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 19:10:34,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 19:10:34,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-06 19:10:34,240 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand 6 states. [2021-01-06 19:10:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 19:10:34,597 INFO L93 Difference]: Finished difference Result 992 states and 1318 transitions. [2021-01-06 19:10:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 19:10:34,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2021-01-06 19:10:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 19:10:34,602 INFO L225 Difference]: With dead ends: 992 [2021-01-06 19:10:34,602 INFO L226 Difference]: Without dead ends: 680 [2021-01-06 19:10:34,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-01-06 19:10:34,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-01-06 19:10:34,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 318. [2021-01-06 19:10:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-01-06 19:10:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2021-01-06 19:10:34,649 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 34 [2021-01-06 19:10:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 19:10:34,649 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2021-01-06 19:10:34,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 19:10:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2021-01-06 19:10:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-06 19:10:34,650 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 19:10:34,651 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 19:10:34,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 19:10:34,651 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 19:10:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 19:10:34,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1466712466, now seen corresponding path program 1 times [2021-01-06 19:10:34,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 19:10:34,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116081190] [2021-01-06 19:10:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 19:10:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 19:10:34,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 19:10:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 19:10:34,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 19:10:34,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 19:10:34,898 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 19:10:34,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-06 19:10:35,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 07:10:35 BoogieIcfgContainer [2021-01-06 19:10:35,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 19:10:35,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 19:10:35,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 19:10:35,039 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 19:10:35,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 07:10:31" (3/4) ... [2021-01-06 19:10:35,042 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 19:10:35,211 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec1_product43.cil.c-witness.graphml [2021-01-06 19:10:35,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 19:10:35,213 INFO L168 Benchmark]: Toolchain (without parser) took 5663.60 ms. Allocated memory was 165.7 MB in the beginning and 216.0 MB in the end (delta: 50.3 MB). Free memory was 140.7 MB in the beginning and 140.0 MB in the end (delta: 730.0 kB). Peak memory consumption was 52.0 MB. Max. memory is 8.0 GB. [2021-01-06 19:10:35,214 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 165.7 MB. Free memory is still 137.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 19:10:35,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.93 ms. Allocated memory is still 165.7 MB. Free memory was 140.4 MB in the beginning and 119.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-01-06 19:10:35,214 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.40 ms. Allocated memory is still 165.7 MB. Free memory was 119.0 MB in the beginning and 115.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:10:35,215 INFO L168 Benchmark]: Boogie Preprocessor took 87.54 ms. Allocated memory is still 165.7 MB. Free memory was 115.9 MB in the beginning and 113.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 19:10:35,215 INFO L168 Benchmark]: RCFGBuilder took 1169.27 ms. Allocated memory is still 165.7 MB. Free memory was 113.6 MB in the beginning and 96.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-01-06 19:10:35,215 INFO L168 Benchmark]: TraceAbstraction took 3519.15 ms. Allocated memory was 165.7 MB in the beginning and 216.0 MB in the end (delta: 50.3 MB). Free memory was 95.5 MB in the beginning and 159.9 MB in the end (delta: -64.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 19:10:35,216 INFO L168 Benchmark]: Witness Printer took 172.16 ms. Allocated memory is still 216.0 MB. Free memory was 159.9 MB in the beginning and 140.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-01-06 19:10:35,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 165.7 MB. Free memory is still 137.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 629.93 ms. Allocated memory is still 165.7 MB. Free memory was 140.4 MB in the beginning and 119.1 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 77.40 ms. Allocated memory is still 165.7 MB. Free memory was 119.0 MB in the beginning and 115.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 87.54 ms. Allocated memory is still 165.7 MB. Free memory was 115.9 MB in the beginning and 113.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1169.27 ms. Allocated memory is still 165.7 MB. Free memory was 113.6 MB in the beginning and 96.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3519.15 ms. Allocated memory was 165.7 MB in the beginning and 216.0 MB in the end (delta: 50.3 MB). Free memory was 95.5 MB in the beginning and 159.9 MB in the end (delta: -64.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 172.16 ms. Allocated memory is still 216.0 MB. Free memory was 159.9 MB in the beginning and 140.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 407]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int retValue_acc ; [L515] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L307] tmp = isHighWaterSensorDry() [L309] COND FALSE !(\read(tmp)) [L312] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L220] int tmp ; [L245] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] retValue_acc = isMethaneLevelCritical() [L251] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L224] tmp = isMethaneAlarm() [L226] COND FALSE !(\read(tmp)) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L418] tmp = isMethaneLevelCritical() [L420] COND TRUE \read(tmp) [L256] int retValue_acc ; [L259] retValue_acc = pumpRunning [L260] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L422] tmp___0 = isPumpRunning() [L424] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L407] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 1025 SDslu, 1353 SDs, 0 SdLazy, 173 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1212 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 12770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...