/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 EqDomain -i ../sv-benchmarks/c/product-lines/email_spec4_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:53:02,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:53:02,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:53:02,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:53:02,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:53:02,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:53:02,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:53:02,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:53:02,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:53:02,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:53:02,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:53:02,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:53:02,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:53:02,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:53:02,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:53:02,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:53:02,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:53:02,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:53:02,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:53:02,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:53:02,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:53:02,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:53:02,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:53:02,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:53:02,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:53:02,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:53:02,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:53:02,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:53:02,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:53:02,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:53:02,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:53:02,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:53:02,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:53:02,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:53:02,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:53:02,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:53:02,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:53:02,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:53:02,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:53:02,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:53:02,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:53:02,576 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 11:53:02,591 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:53:02,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:53:02,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:53:02,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:53:02,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:53:02,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:53:02,592 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:53:02,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:53:02,592 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:53:02,592 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:53:02,592 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:53:02,592 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:53:02,593 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:53:02,593 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:53:02,593 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:53:02,593 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:53:02,593 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:53:02,593 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:53:02,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:53:02,593 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:53:02,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:53:02,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:53:02,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:53:02,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:53:02,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:53:02,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:53:02,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:53:02,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:53:02,816 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:53:02,818 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:53:02,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec4_product31.cil.c [2023-04-01 11:53:03,860 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:53:04,118 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:53:04,119 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec4_product31.cil.c [2023-04-01 11:53:04,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c787ba4b3/bc14163a7dea493a871ab95748af06b4/FLAGe9dccc434 [2023-04-01 11:53:04,155 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c787ba4b3/bc14163a7dea493a871ab95748af06b4 [2023-04-01 11:53:04,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:53:04,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:53:04,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:53:04,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:53:04,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:53:04,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4496a419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04, skipping insertion in model container [2023-04-01 11:53:04,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:53:04,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:53:04,430 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_spec4_product31.cil.c[26985,26998] [2023-04-01 11:53:04,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:53:04,609 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:53:04,664 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_spec4_product31.cil.c[26985,26998] [2023-04-01 11:53:04,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:53:04,717 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 11:53:04,722 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:53:04,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04 WrapperNode [2023-04-01 11:53:04,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:53:04,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:53:04,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:53:04,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:53:04,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:53:04,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:53:04,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:53:04,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:53:04,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (1/1) ... [2023-04-01 11:53:04,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:53:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:53:04,888 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 11:53:04,896 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 11:53:04,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:53:04,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:53:04,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 11:53:04,918 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-01 11:53:04,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-01 11:53:04,920 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-01 11:53:04,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-01 11:53:04,922 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-01 11:53:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-01 11:53:04,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-01 11:53:04,925 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-01 11:53:04,926 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-01 11:53:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 11:53:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 11:53:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 11:53:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 11:53:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-01 11:53:04,927 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 11:53:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:53:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:53:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:53:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:53:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:53:04,927 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-01 11:53:04,928 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-01 11:53:04,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 11:53:04,930 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-01 11:53:04,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-01 11:53:04,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-01 11:53:04,933 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-01 11:53:04,934 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2023-04-01 11:53:04,935 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 11:53:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-01 11:53:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:53:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:53:04,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:53:05,290 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:53:05,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:53:06,186 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:53:06,894 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:53:06,898 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 11:53:06,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:53:06 BoogieIcfgContainer [2023-04-01 11:53:06,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:53:06,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:53:06,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:53:06,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:53:06,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:53:04" (1/3) ... [2023-04-01 11:53:06,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e51965f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:53:06, skipping insertion in model container [2023-04-01 11:53:06,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:53:04" (2/3) ... [2023-04-01 11:53:06,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e51965f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:53:06, skipping insertion in model container [2023-04-01 11:53:06,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:53:06" (3/3) ... [2023-04-01 11:53:06,909 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product31.cil.c [2023-04-01 11:53:06,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:53:06,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:53:06,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:53:06,986 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;@14a891d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:53:06,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:53:06,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 207 states have (on average 1.1980676328502415) internal successors, (248), 216 states have internal predecessors, (248), 119 states have call successors, (119), 79 states have call predecessors, (119), 79 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2023-04-01 11:53:07,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-01 11:53:07,016 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:53:07,017 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] [2023-04-01 11:53:07,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:53:07,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:53:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1372374316, now seen corresponding path program 1 times [2023-04-01 11:53:07,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:53:07,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244780616] [2023-04-01 11:53:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:53:07,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:53:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:53:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 11:53:07,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:53:07,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244780616] [2023-04-01 11:53:07,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244780616] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:53:07,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:53:07,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:53:07,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784191910] [2023-04-01 11:53:07,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:53:07,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:53:07,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:53:07,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:53:07,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:53:07,466 INFO L87 Difference]: Start difference. First operand has 410 states, 207 states have (on average 1.1980676328502415) internal successors, (248), 216 states have internal predecessors, (248), 119 states have call successors, (119), 79 states have call predecessors, (119), 79 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 11:53:07,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:53:07,620 INFO L93 Difference]: Finished difference Result 628 states and 744 transitions. [2023-04-01 11:53:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:53:07,623 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 129 [2023-04-01 11:53:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:53:07,638 INFO L225 Difference]: With dead ends: 628 [2023-04-01 11:53:07,639 INFO L226 Difference]: Without dead ends: 389 [2023-04-01 11:53:07,644 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 11:53:07,649 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:53:07,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 424 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:53:07,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-04-01 11:53:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2023-04-01 11:53:07,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 198 states have (on average 1.1868686868686869) internal successors, (235), 204 states have internal predecessors, (235), 115 states have call successors, (115), 79 states have call predecessors, (115), 75 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2023-04-01 11:53:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 460 transitions. [2023-04-01 11:53:07,704 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 460 transitions. Word has length 129 [2023-04-01 11:53:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:53:07,705 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 460 transitions. [2023-04-01 11:53:07,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 11:53:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 460 transitions. [2023-04-01 11:53:07,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-01 11:53:07,708 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:53:07,708 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] [2023-04-01 11:53:07,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:53:07,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:53:07,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:53:07,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1481309110, now seen corresponding path program 1 times [2023-04-01 11:53:07,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:53:07,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38288777] [2023-04-01 11:53:07,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:53:07,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:53:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:53:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 11:53:07,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:53:07,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38288777] [2023-04-01 11:53:07,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38288777] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:53:07,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:53:07,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:53:07,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906724815] [2023-04-01 11:53:07,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:53:07,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:53:07,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:53:07,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:53:07,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:53:07,974 INFO L87 Difference]: Start difference. First operand 389 states and 460 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 11:53:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:53:08,092 INFO L93 Difference]: Finished difference Result 613 states and 715 transitions. [2023-04-01 11:53:08,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:53:08,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 130 [2023-04-01 11:53:08,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:53:08,099 INFO L225 Difference]: With dead ends: 613 [2023-04-01 11:53:08,099 INFO L226 Difference]: Without dead ends: 391 [2023-04-01 11:53:08,104 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 11:53:08,106 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:53:08,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 828 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:53:08,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2023-04-01 11:53:08,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2023-04-01 11:53:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 200 states have (on average 1.185) internal successors, (237), 206 states have internal predecessors, (237), 115 states have call successors, (115), 79 states have call predecessors, (115), 75 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2023-04-01 11:53:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 462 transitions. [2023-04-01 11:53:08,175 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 462 transitions. Word has length 130 [2023-04-01 11:53:08,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:53:08,175 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 462 transitions. [2023-04-01 11:53:08,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 11:53:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 462 transitions. [2023-04-01 11:53:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-04-01 11:53:08,177 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:53:08,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:08,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 11:53:08,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:53:08,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:53:08,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1062154907, now seen corresponding path program 1 times [2023-04-01 11:53:08,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:53:08,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452963420] [2023-04-01 11:53:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:53:08,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:53:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:53:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 11:53:08,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:53:08,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452963420] [2023-04-01 11:53:08,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452963420] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:53:08,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:53:08,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:53:08,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582144480] [2023-04-01 11:53:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:53:08,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:53:08,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:53:08,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:53:08,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:53:08,344 INFO L87 Difference]: Start difference. First operand 391 states and 462 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 11:53:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:53:08,453 INFO L93 Difference]: Finished difference Result 764 states and 931 transitions. [2023-04-01 11:53:08,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:53:08,453 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 135 [2023-04-01 11:53:08,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:53:08,455 INFO L225 Difference]: With dead ends: 764 [2023-04-01 11:53:08,456 INFO L226 Difference]: Without dead ends: 431 [2023-04-01 11:53:08,457 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 11:53:08,457 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 52 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:53:08,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 828 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:53:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-04-01 11:53:08,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 430. [2023-04-01 11:53:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 231 states have (on average 1.251082251082251) internal successors, (289), 237 states have internal predecessors, (289), 123 states have call successors, (123), 79 states have call predecessors, (123), 75 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-04-01 11:53:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 530 transitions. [2023-04-01 11:53:08,485 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 530 transitions. Word has length 135 [2023-04-01 11:53:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:53:08,485 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 530 transitions. [2023-04-01 11:53:08,486 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 11:53:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 530 transitions. [2023-04-01 11:53:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-01 11:53:08,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:53:08,488 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:08,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 11:53:08,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:53:08,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:53:08,488 INFO L85 PathProgramCache]: Analyzing trace with hash 127892099, now seen corresponding path program 1 times [2023-04-01 11:53:08,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:53:08,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349307532] [2023-04-01 11:53:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:53:08,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:53:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:53:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 11:53:08,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:53:08,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349307532] [2023-04-01 11:53:08,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349307532] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:53:08,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635341473] [2023-04-01 11:53:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:53:08,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:53:08,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:53:08,702 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 11:53:08,719 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 11:53:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:53:09,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 11:53:09,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:53:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 11:53:09,314 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:53:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 11:53:09,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635341473] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:53:09,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [835438367] [2023-04-01 11:53:09,539 INFO L159 IcfgInterpreter]: Started Sifa with 123 locations of interest [2023-04-01 11:53:09,539 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:53:09,551 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:53:09,555 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:53:09,556 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:53:18,286 WARN L223 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:53:24,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 337 for LOIs [2023-04-01 11:53:24,716 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 576 for LOIs [2023-04-01 11:53:36,701 WARN L223 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:53:46,629 WARN L223 SmtUtils]: Spent 9.92s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:53:56,444 WARN L223 SmtUtils]: Spent 9.81s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:54:06,126 WARN L223 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)