/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_spec7_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:56:06,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:56:06,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:56:06,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:56:06,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:56:06,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:56:06,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:56:06,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:56:06,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:56:06,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:56:06,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:56:06,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:56:06,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:56:06,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:56:06,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:56:06,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:56:06,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:56:06,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:56:06,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:56:06,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:56:06,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:56:06,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:56:06,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:56:06,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:56:06,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:56:06,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:56:06,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:56:06,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:56:06,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:56:06,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:56:06,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:56:06,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:56:06,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:56:06,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:56:06,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:56:06,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:56:06,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:56:06,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:56:06,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:56:06,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:56:06,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:56:06,822 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 11:56:06,849 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:56:06,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:56:06,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:56:06,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:56:06,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:56:06,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:56:06,850 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:56:06,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:56:06,850 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:56:06,850 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:56:06,851 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:56:06,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:56:06,851 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:56:06,851 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:56:06,851 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:56:06,852 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:56:06,852 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:56:06,852 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:56:06,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:56:06,852 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:56:06,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:56:06,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:56:06,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:56:06,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:56:06,853 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:56:06,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:56:06,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:56:06,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:56:07,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:56:07,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:56:07,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:56:07,037 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:56:07,037 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:56:07,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec7_product30.cil.c [2023-04-01 11:56:08,288 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:56:08,583 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:56:08,584 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product30.cil.c [2023-04-01 11:56:08,605 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5765fd158/673651264c834d1f8752a56a3c3f0da2/FLAGad91398be [2023-04-01 11:56:08,616 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5765fd158/673651264c834d1f8752a56a3c3f0da2 [2023-04-01 11:56:08,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:56:08,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:56:08,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:56:08,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:56:08,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:56:08,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:56:08" (1/1) ... [2023-04-01 11:56:08,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21eb66ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:08, skipping insertion in model container [2023-04-01 11:56:08,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:56:08" (1/1) ... [2023-04-01 11:56:08,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:56:08,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:56:08,971 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_product30.cil.c[50838,50851] [2023-04-01 11:56:09,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:56:09,079 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:56:09,152 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_product30.cil.c[50838,50851] [2023-04-01 11:56:09,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:56:09,184 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 11:56:09,189 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:56:09,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09 WrapperNode [2023-04-01 11:56:09,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:56:09,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:56:09,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:56:09,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:56:09,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,273 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:56:09,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:56:09,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:56:09,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:56:09,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (1/1) ... [2023-04-01 11:56:09,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:56:09,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:56:09,361 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 11:56:09,400 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 11:56:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:56:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:56:09,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 11:56:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:56:09,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 11:56:09,416 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-01 11:56:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-01 11:56:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-01 11:56:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-01 11:56:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-01 11:56:09,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-01 11:56:09,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-01 11:56:09,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-01 11:56:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-01 11:56:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-01 11:56:09,420 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-01 11:56:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-01 11:56:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-01 11:56:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-01 11:56:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-01 11:56:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-01 11:56:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-01 11:56:09,448 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-01 11:56:09,449 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-01 11:56:09,450 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-01 11:56:09,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-01 11:56:09,452 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-01 11:56:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-01 11:56:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-01 11:56:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-01 11:56:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-01 11:56:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-01 11:56:09,453 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-04-01 11:56:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:56:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:56:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:56:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:56:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:56:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 11:56:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 11:56:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-01 11:56:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-01 11:56:09,462 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-01 11:56:09,463 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-01 11:56:09,464 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-01 11:56:09,467 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-01 11:56:09,468 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:56:09,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:56:09,775 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:56:09,779 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:56:10,657 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:56:11,218 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:56:11,220 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 11:56:11,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:56:11 BoogieIcfgContainer [2023-04-01 11:56:11,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:56:11,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:56:11,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:56:11,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:56:11,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:56:08" (1/3) ... [2023-04-01 11:56:11,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335f45ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:56:11, skipping insertion in model container [2023-04-01 11:56:11,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:56:09" (2/3) ... [2023-04-01 11:56:11,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335f45ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:56:11, skipping insertion in model container [2023-04-01 11:56:11,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:56:11" (3/3) ... [2023-04-01 11:56:11,230 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product30.cil.c [2023-04-01 11:56:11,243 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:56:11,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:56:11,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:56:11,291 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;@b3a42d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:56:11,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:56:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 395 states, 199 states have (on average 1.2010050251256281) internal successors, (239), 208 states have internal predecessors, (239), 113 states have call successors, (113), 74 states have call predecessors, (113), 74 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-01 11:56:11,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-01 11:56:11,307 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:56:11,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:56:11,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:56:11,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:56:11,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1406309325, now seen corresponding path program 1 times [2023-04-01 11:56:11,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:56:11,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093089079] [2023-04-01 11:56:11,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:56:11,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:56:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:56:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:11,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:56:11,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093089079] [2023-04-01 11:56:11,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093089079] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:56:11,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:56:11,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:56:11,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501822488] [2023-04-01 11:56:11,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:56:11,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:56:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:56:11,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:56:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:56:11,661 INFO L87 Difference]: Start difference. First operand has 395 states, 199 states have (on average 1.2010050251256281) internal successors, (239), 208 states have internal predecessors, (239), 113 states have call successors, (113), 74 states have call predecessors, (113), 74 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:56:11,790 INFO L93 Difference]: Finished difference Result 556 states and 659 transitions. [2023-04-01 11:56:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:56:11,792 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 145 [2023-04-01 11:56:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:56:11,801 INFO L225 Difference]: With dead ends: 556 [2023-04-01 11:56:11,801 INFO L226 Difference]: Without dead ends: 353 [2023-04-01 11:56:11,804 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 11:56:11,806 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:56:11,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 386 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:56:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-04-01 11:56:11,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-04-01 11:56:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 181 states have (on average 1.1988950276243093) internal successors, (217), 187 states have internal predecessors, (217), 102 states have call successors, (102), 73 states have call predecessors, (102), 69 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-04-01 11:56:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 416 transitions. [2023-04-01 11:56:11,851 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 416 transitions. Word has length 145 [2023-04-01 11:56:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:56:11,852 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 416 transitions. [2023-04-01 11:56:11,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 416 transitions. [2023-04-01 11:56:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-01 11:56:11,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:56:11,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:56:11,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:56:11,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:56:11,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:56:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash 102068912, now seen corresponding path program 1 times [2023-04-01 11:56:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:56:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630944219] [2023-04-01 11:56:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:56:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:56:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:56:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:12,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:56:12,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630944219] [2023-04-01 11:56:12,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630944219] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:56:12,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:56:12,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:56:12,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814119833] [2023-04-01 11:56:12,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:56:12,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:56:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:56:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:56:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:56:12,077 INFO L87 Difference]: Start difference. First operand 353 states and 416 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:56:12,155 INFO L93 Difference]: Finished difference Result 541 states and 627 transitions. [2023-04-01 11:56:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:56:12,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 146 [2023-04-01 11:56:12,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:56:12,159 INFO L225 Difference]: With dead ends: 541 [2023-04-01 11:56:12,159 INFO L226 Difference]: Without dead ends: 355 [2023-04-01 11:56:12,160 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 11:56:12,161 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:56:12,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 752 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:56:12,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-04-01 11:56:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-04-01 11:56:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 183 states have (on average 1.1967213114754098) internal successors, (219), 189 states have internal predecessors, (219), 102 states have call successors, (102), 73 states have call predecessors, (102), 69 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-04-01 11:56:12,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 418 transitions. [2023-04-01 11:56:12,190 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 418 transitions. Word has length 146 [2023-04-01 11:56:12,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:56:12,190 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 418 transitions. [2023-04-01 11:56:12,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:12,191 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 418 transitions. [2023-04-01 11:56:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-04-01 11:56:12,193 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:56:12,193 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:12,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 11:56:12,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:56:12,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:56:12,194 INFO L85 PathProgramCache]: Analyzing trace with hash 729515075, now seen corresponding path program 1 times [2023-04-01 11:56:12,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:56:12,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62127756] [2023-04-01 11:56:12,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:56:12,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:56:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:56:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:12,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:56:12,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62127756] [2023-04-01 11:56:12,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62127756] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:56:12,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:56:12,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:56:12,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508828293] [2023-04-01 11:56:12,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:56:12,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:56:12,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:56:12,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:56:12,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:56:12,359 INFO L87 Difference]: Start difference. First operand 355 states and 418 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:12,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:56:12,447 INFO L93 Difference]: Finished difference Result 692 states and 843 transitions. [2023-04-01 11:56:12,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:56:12,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 155 [2023-04-01 11:56:12,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:56:12,449 INFO L225 Difference]: With dead ends: 692 [2023-04-01 11:56:12,450 INFO L226 Difference]: Without dead ends: 395 [2023-04-01 11:56:12,451 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 11:56:12,452 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 52 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:56:12,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 754 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:56:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-04-01 11:56:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 394. [2023-04-01 11:56:12,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 214 states have (on average 1.266355140186916) internal successors, (271), 220 states have internal predecessors, (271), 110 states have call successors, (110), 73 states have call predecessors, (110), 69 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-04-01 11:56:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 486 transitions. [2023-04-01 11:56:12,496 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 486 transitions. Word has length 155 [2023-04-01 11:56:12,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:56:12,496 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 486 transitions. [2023-04-01 11:56:12,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:12,497 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 486 transitions. [2023-04-01 11:56:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-04-01 11:56:12,499 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:56:12,499 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:12,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 11:56:12,500 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:56:12,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:56:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1523200801, now seen corresponding path program 1 times [2023-04-01 11:56:12,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:56:12,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230672673] [2023-04-01 11:56:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:56:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:56:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:56:12,667 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:12,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:56:12,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230672673] [2023-04-01 11:56:12,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230672673] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:56:12,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:56:12,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:56:12,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904223271] [2023-04-01 11:56:12,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:56:12,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:56:12,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:56:12,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:56:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:56:12,669 INFO L87 Difference]: Start difference. First operand 394 states and 486 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:56:12,767 INFO L93 Difference]: Finished difference Result 806 states and 1042 transitions. [2023-04-01 11:56:12,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:56:12,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 156 [2023-04-01 11:56:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:56:12,773 INFO L225 Difference]: With dead ends: 806 [2023-04-01 11:56:12,773 INFO L226 Difference]: Without dead ends: 470 [2023-04-01 11:56:12,774 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 11:56:12,781 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 50 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:56:12,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 748 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:56:12,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-04-01 11:56:12,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2023-04-01 11:56:12,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 274 states have (on average 1.354014598540146) internal successors, (371), 280 states have internal predecessors, (371), 125 states have call successors, (125), 73 states have call predecessors, (125), 69 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-04-01 11:56:12,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 616 transitions. [2023-04-01 11:56:12,810 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 616 transitions. Word has length 156 [2023-04-01 11:56:12,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:56:12,810 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 616 transitions. [2023-04-01 11:56:12,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 11:56:12,811 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 616 transitions. [2023-04-01 11:56:12,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-01 11:56:12,814 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:56:12,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:12,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 11:56:12,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:56:12,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:56:12,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1108100310, now seen corresponding path program 1 times [2023-04-01 11:56:12,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:56:12,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547479676] [2023-04-01 11:56:12,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:56:12,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:56:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:56:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:13,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:56:13,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547479676] [2023-04-01 11:56:13,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547479676] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:56:13,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350660999] [2023-04-01 11:56:13,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:56:13,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:56:13,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:56:13,068 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 11:56:13,095 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 11:56:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:56:13,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 2382 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 11:56:13,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:56:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:13,619 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:56:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:56:13,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350660999] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:56:13,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [117942329] [2023-04-01 11:56:13,816 INFO L159 IcfgInterpreter]: Started Sifa with 144 locations of interest [2023-04-01 11:56:13,816 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:56:13,819 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:56:13,822 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:56:13,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:56:22,573 WARN L223 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 483 DAG size of output: 483 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:56:28,039 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 337 for LOIs [2023-04-01 11:56:28,493 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 571 for LOIs [2023-04-01 11:56:39,567 WARN L223 SmtUtils]: Spent 9.23s on a formula simplification. DAG size of input: 571 DAG size of output: 571 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:56:48,317 WARN L223 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 571 DAG size of output: 571 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:56:57,240 WARN L223 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 571 DAG size of output: 571 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:57:05,926 WARN L223 SmtUtils]: Spent 8.68s on a formula simplification. DAG size of input: 571 DAG size of output: 571 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:57:16,410 WARN L223 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 571 DAG size of output: 571 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)