/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:49:48,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:49:48,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:49:48,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:49:48,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:49:48,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:49:48,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:49:48,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:49:48,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:49:48,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:49:48,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:49:48,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:49:48,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:49:48,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:49:48,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:49:48,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:49:48,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:49:48,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:49:48,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:49:48,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:49:48,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:49:48,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:49:48,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:49:48,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:49:48,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:49:48,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:49:48,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:49:48,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:49:48,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:49:48,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:49:48,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:49:48,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:49:48,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:49:48,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:49:48,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:49:48,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:49:48,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:49:48,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:49:48,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:49:48,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:49:48,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:49:48,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 05:49:48,906 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:49:48,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:49:48,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:49:48,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:49:48,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:49:48,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:49:48,908 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:49:48,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:49:48,909 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:49:48,909 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:49:48,909 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:49:48,909 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:49:48,909 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:49:48,910 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:49:48,910 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:49:48,910 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:49:48,910 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:49:48,910 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:49:48,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:49:48,911 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:49:48,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:49:48,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:49:48,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:49:48,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:49:48,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:49:48,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:49:48,912 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:49:48,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:49:48,912 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:49:48,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:49:48,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:49:48,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:49:48,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:49:48,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:49:48,913 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:49:48,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:49:48,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:49:48,914 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:49:48,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:49:48,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:49:48,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:49:48,915 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:49:49,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:49:49,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:49:49,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:49:49,152 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:49:49,153 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:49:49,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c [2023-04-01 05:49:50,349 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:49:50,609 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:49:50,610 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c [2023-04-01 05:49:50,631 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fea877ad/3327518f6a7c4de68a1b4303713baa39/FLAG22afc117e [2023-04-01 05:49:50,915 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fea877ad/3327518f6a7c4de68a1b4303713baa39 [2023-04-01 05:49:50,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:49:50,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:49:50,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:49:50,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:49:50,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:49:50,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:49:50" (1/1) ... [2023-04-01 05:49:50,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c960c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:50, skipping insertion in model container [2023-04-01 05:49:50,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:49:50" (1/1) ... [2023-04-01 05:49:50,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:49:51,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:49:51,439 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2023-04-01 05:49:51,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:49:51,544 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:49:51,640 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2023-04-01 05:49:51,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:49:51,716 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 05:49:51,723 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:49:51,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51 WrapperNode [2023-04-01 05:49:51,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:49:51,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:49:51,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:49:51,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:49:51,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:49:51,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:49:51,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:49:51,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:49:51,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (1/1) ... [2023-04-01 05:49:51,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:49:51,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:49:51,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 05:49:51,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 05:49:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:49:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:49:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:49:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:49:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-01 05:49:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-01 05:49:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-01 05:49:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-01 05:49:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-01 05:49:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-01 05:49:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-01 05:49:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-01 05:49:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-01 05:49:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-01 05:49:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-04-01 05:49:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-01 05:49:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-01 05:49:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:49:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2023-04-01 05:49:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:49:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:49:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:49:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:49:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:49:52,002 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:49:52,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:49:52,004 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-01 05:49:52,005 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-01 05:49:52,006 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-01 05:49:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-01 05:49:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-01 05:49:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-01 05:49:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-01 05:49:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-01 05:49:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-01 05:49:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2023-04-01 05:49:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-01 05:49:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2023-04-01 05:49:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:49:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:49:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:49:52,273 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:49:52,277 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:49:53,444 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:49:54,164 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:49:54,164 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 05:49:54,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:49:54 BoogieIcfgContainer [2023-04-01 05:49:54,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:49:54,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:49:54,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:49:54,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:49:54,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:49:50" (1/3) ... [2023-04-01 05:49:54,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0a4cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:49:54, skipping insertion in model container [2023-04-01 05:49:54,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:49:51" (2/3) ... [2023-04-01 05:49:54,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0a4cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:49:54, skipping insertion in model container [2023-04-01 05:49:54,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:49:54" (3/3) ... [2023-04-01 05:49:54,186 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product18.cil.c [2023-04-01 05:49:54,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:49:54,206 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:49:54,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:49:54,334 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7239d073, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:49:54,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:49:54,341 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 174 states have (on average 1.2011494252873562) internal successors, (209), 181 states have internal predecessors, (209), 97 states have call successors, (97), 67 states have call predecessors, (97), 67 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-04-01 05:49:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-04-01 05:49:54,367 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:49:54,368 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:49:54,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:49:54,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:49:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1628770931, now seen corresponding path program 1 times [2023-04-01 05:49:54,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:49:54,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114282873] [2023-04-01 05:49:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:49:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:54,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:49:54,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114282873] [2023-04-01 05:49:54,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114282873] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:49:54,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:49:54,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:49:54,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910761570] [2023-04-01 05:49:54,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:49:54,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:49:54,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:49:54,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:49:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:49:54,975 INFO L87 Difference]: Start difference. First operand has 346 states, 174 states have (on average 1.2011494252873562) internal successors, (209), 181 states have internal predecessors, (209), 97 states have call successors, (97), 67 states have call predecessors, (97), 67 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:49:55,127 INFO L93 Difference]: Finished difference Result 468 states and 545 transitions. [2023-04-01 05:49:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:49:55,129 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 121 [2023-04-01 05:49:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:49:55,148 INFO L225 Difference]: With dead ends: 468 [2023-04-01 05:49:55,148 INFO L226 Difference]: Without dead ends: 309 [2023-04-01 05:49:55,152 INFO L412 NwaCegarLoop]: 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 [2023-04-01 05:49:55,155 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:49:55,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:49:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-04-01 05:49:55,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-04-01 05:49:55,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 158 states have (on average 1.1962025316455696) internal successors, (189), 162 states have internal predecessors, (189), 88 states have call successors, (88), 66 states have call predecessors, (88), 62 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-04-01 05:49:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 360 transitions. [2023-04-01 05:49:55,213 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 360 transitions. Word has length 121 [2023-04-01 05:49:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:49:55,215 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 360 transitions. [2023-04-01 05:49:55,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:55,215 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 360 transitions. [2023-04-01 05:49:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-01 05:49:55,218 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:49:55,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:49:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:49:55,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:49:55,219 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:49:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 153530531, now seen corresponding path program 1 times [2023-04-01 05:49:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:49:55,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592106915] [2023-04-01 05:49:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:49:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:55,502 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:55,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:49:55,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592106915] [2023-04-01 05:49:55,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592106915] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:49:55,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:49:55,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:49:55,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080182167] [2023-04-01 05:49:55,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:49:55,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:49:55,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:49:55,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:49:55,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:49:55,506 INFO L87 Difference]: Start difference. First operand 309 states and 360 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:49:55,626 INFO L93 Difference]: Finished difference Result 453 states and 515 transitions. [2023-04-01 05:49:55,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:49:55,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 122 [2023-04-01 05:49:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:49:55,633 INFO L225 Difference]: With dead ends: 453 [2023-04-01 05:49:55,633 INFO L226 Difference]: Without dead ends: 311 [2023-04-01 05:49:55,638 INFO L412 NwaCegarLoop]: 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 [2023-04-01 05:49:55,640 INFO L413 NwaCegarLoop]: 325 mSDtfsCounter, 0 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:49:55,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 648 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:49:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-04-01 05:49:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-04-01 05:49:55,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 160 states have (on average 1.19375) internal successors, (191), 164 states have internal predecessors, (191), 88 states have call successors, (88), 66 states have call predecessors, (88), 62 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2023-04-01 05:49:55,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 362 transitions. [2023-04-01 05:49:55,680 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 362 transitions. Word has length 122 [2023-04-01 05:49:55,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:49:55,681 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 362 transitions. [2023-04-01 05:49:55,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 362 transitions. [2023-04-01 05:49:55,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-01 05:49:55,689 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:49:55,689 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:49:55,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:49:55,690 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:49:55,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:49:55,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1647416706, now seen corresponding path program 1 times [2023-04-01 05:49:55,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:49:55,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090174035] [2023-04-01 05:49:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:55,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:49:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:55,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:49:55,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090174035] [2023-04-01 05:49:55,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090174035] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:49:55,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:49:55,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:49:55,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653727468] [2023-04-01 05:49:55,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:49:55,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:49:55,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:49:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:49:55,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:49:55,958 INFO L87 Difference]: Start difference. First operand 311 states and 362 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:56,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:49:56,084 INFO L93 Difference]: Finished difference Result 604 states and 731 transitions. [2023-04-01 05:49:56,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:49:56,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 131 [2023-04-01 05:49:56,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:49:56,104 INFO L225 Difference]: With dead ends: 604 [2023-04-01 05:49:56,104 INFO L226 Difference]: Without dead ends: 351 [2023-04-01 05:49:56,106 INFO L412 NwaCegarLoop]: 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 [2023-04-01 05:49:56,106 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 52 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:49:56,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 648 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:49:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-04-01 05:49:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 350. [2023-04-01 05:49:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 191 states have (on average 1.2722513089005236) internal successors, (243), 195 states have internal predecessors, (243), 96 states have call successors, (96), 66 states have call predecessors, (96), 62 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-04-01 05:49:56,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 430 transitions. [2023-04-01 05:49:56,130 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 430 transitions. Word has length 131 [2023-04-01 05:49:56,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:49:56,130 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 430 transitions. [2023-04-01 05:49:56,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:56,131 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 430 transitions. [2023-04-01 05:49:56,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-01 05:49:56,150 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:49:56,151 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:49:56,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:49:56,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:49:56,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:49:56,152 INFO L85 PathProgramCache]: Analyzing trace with hash 638882176, now seen corresponding path program 1 times [2023-04-01 05:49:56,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:49:56,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558593891] [2023-04-01 05:49:56,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:56,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:49:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:56,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:49:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558593891] [2023-04-01 05:49:56,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558593891] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:49:56,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:49:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:49:56,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407239860] [2023-04-01 05:49:56,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:49:56,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:49:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:49:56,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:49:56,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:49:56,349 INFO L87 Difference]: Start difference. First operand 350 states and 430 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:49:56,435 INFO L93 Difference]: Finished difference Result 718 states and 930 transitions. [2023-04-01 05:49:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:49:56,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 132 [2023-04-01 05:49:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:49:56,439 INFO L225 Difference]: With dead ends: 718 [2023-04-01 05:49:56,440 INFO L226 Difference]: Without dead ends: 426 [2023-04-01 05:49:56,441 INFO L412 NwaCegarLoop]: 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 [2023-04-01 05:49:56,442 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 50 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:49:56,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 648 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:49:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-04-01 05:49:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2023-04-01 05:49:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 251 states have (on average 1.3665338645418326) internal successors, (343), 255 states have internal predecessors, (343), 111 states have call successors, (111), 66 states have call predecessors, (111), 62 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2023-04-01 05:49:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 560 transitions. [2023-04-01 05:49:56,467 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 560 transitions. Word has length 132 [2023-04-01 05:49:56,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:49:56,467 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 560 transitions. [2023-04-01 05:49:56,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 560 transitions. [2023-04-01 05:49:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-01 05:49:56,470 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:49:56,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:49:56,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:49:56,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:49:56,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:49:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2104573858, now seen corresponding path program 1 times [2023-04-01 05:49:56,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:49:56,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694695948] [2023-04-01 05:49:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:56,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:49:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:56,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:49:56,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694695948] [2023-04-01 05:49:56,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694695948] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:49:56,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:49:56,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:49:56,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715788677] [2023-04-01 05:49:56,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:49:56,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:49:56,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:49:56,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:49:56,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:49:56,610 INFO L87 Difference]: Start difference. First operand 425 states and 560 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:56,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:49:56,698 INFO L93 Difference]: Finished difference Result 937 states and 1310 transitions. [2023-04-01 05:49:56,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:49:56,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2023-04-01 05:49:56,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:49:56,702 INFO L225 Difference]: With dead ends: 937 [2023-04-01 05:49:56,702 INFO L226 Difference]: Without dead ends: 570 [2023-04-01 05:49:56,703 INFO L412 NwaCegarLoop]: 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 [2023-04-01 05:49:56,704 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 48 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:49:56,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 644 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:49:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-04-01 05:49:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 569. [2023-04-01 05:49:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 367 states have (on average 1.457765667574932) internal successors, (535), 371 states have internal predecessors, (535), 139 states have call successors, (139), 66 states have call predecessors, (139), 62 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2023-04-01 05:49:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 808 transitions. [2023-04-01 05:49:56,738 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 808 transitions. Word has length 133 [2023-04-01 05:49:56,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:49:56,738 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 808 transitions. [2023-04-01 05:49:56,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 05:49:56,739 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 808 transitions. [2023-04-01 05:49:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-04-01 05:49:56,742 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:49:56,742 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:49:56,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:49:56,742 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:49:56,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:49:56,743 INFO L85 PathProgramCache]: Analyzing trace with hash 176100246, now seen corresponding path program 1 times [2023-04-01 05:49:56,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:49:56,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011736791] [2023-04-01 05:49:56,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:56,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:49:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:56,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:49:56,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011736791] [2023-04-01 05:49:56,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011736791] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 05:49:56,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613669518] [2023-04-01 05:49:56,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:49:56,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 05:49:56,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:49:56,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 05:49:56,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 05:49:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:49:57,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 05:49:57,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 05:49:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:57,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 05:49:57,807 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-01 05:49:57,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613669518] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 05:49:57,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1519640334] [2023-04-01 05:49:57,832 INFO L159 IcfgInterpreter]: Started Sifa with 124 locations of interest [2023-04-01 05:49:57,832 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 05:49:57,836 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 05:49:57,840 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 05:49:57,840 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 05:50:03,076 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 337 for LOIs [2023-04-01 05:50:03,754 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 309 for LOIs [2023-04-01 05:50:10,032 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 247 for LOIs [2023-04-01 05:50:12,695 INFO L197 IcfgInterpreter]: Interpreting procedure setup_rjh with input of size 238 for LOIs [2023-04-01 05:50:14,236 INFO L197 IcfgInterpreter]: Interpreting procedure setup_rjh__wrappee__Base with input of size 229 for LOIs [2023-04-01 05:50:14,986 INFO L197 IcfgInterpreter]: Interpreting procedure setup_chuck with input of size 239 for LOIs [2023-04-01 05:50:16,406 INFO L197 IcfgInterpreter]: Interpreting procedure setup_chuck__wrappee__Base with input of size 230 for LOIs [2023-04-01 05:50:17,381 INFO L197 IcfgInterpreter]: Interpreting procedure setup_bob with input of size 243 for LOIs