/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:13:55,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:13:55,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:13:55,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:13:55,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:13:55,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:13:55,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:13:55,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:13:55,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:13:55,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:13:55,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:13:55,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:13:55,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:13:55,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:13:55,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:13:55,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:13:55,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:13:55,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:13:55,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:13:55,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:13:55,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:13:55,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:13:55,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:13:55,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:13:55,617 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:13:55,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:13:55,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:13:55,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:13:55,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:13:55,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:13:55,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:13:55,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:13:55,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:13:55,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:13:55,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:13:55,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:13:55,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:13:55,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:13:55,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:13:55,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:13:55,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:13:55,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:13:55,665 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:13:55,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:13:55,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:13:55,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:13:55,669 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:13:55,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:13:55,670 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:13:55,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:13:55,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:13:55,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:13:55,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:13:55,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:13:55,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:13:55,671 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:13:55,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:13:55,671 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:13:55,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:13:55,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:13:55,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:13:55,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:13:55,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:13:55,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:55,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:13:55,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:13:55,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:13:55,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:13:55,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:13:55,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:13:55,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:13:55,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:13:55,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:13:55,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:13:55,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:13:55,965 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:13:55,966 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-11-07 04:13:56,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd1835be/6c64e842c23b48dd9fce3d2a8572d985/FLAG1810cfcc9 [2019-11-07 04:13:56,641 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:13:56,643 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-11-07 04:13:56,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd1835be/6c64e842c23b48dd9fce3d2a8572d985/FLAG1810cfcc9 [2019-11-07 04:13:56,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd1835be/6c64e842c23b48dd9fce3d2a8572d985 [2019-11-07 04:13:56,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:13:56,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:13:56,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:56,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:13:56,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:13:56,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e41eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:56, skipping insertion in model container [2019-11-07 04:13:56,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:56" (1/1) ... [2019-11-07 04:13:56,922 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:13:57,015 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:13:57,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:57,785 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:13:57,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:57,999 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:13:58,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57 WrapperNode [2019-11-07 04:13:58,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:58,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:13:58,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:13:58,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:13:58,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... [2019-11-07 04:13:58,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:13:58,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:13:58,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:13:58,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:13:58,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:13:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:13:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:13:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:13:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:13:58,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:13:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:13:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:13:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:13:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:13:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:13:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:13:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:13:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:13:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:13:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:13:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:13:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:13:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:13:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:13:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:13:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:13:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:13:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:13:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:13:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:13:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:13:58,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:13:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:13:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:13:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:13:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:13:58,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:13:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:13:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:13:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:13:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:13:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-11-07 04:13:58,241 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:13:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:13:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:13:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:13:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:13:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:13:58,242 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:13:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:13:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:13:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:13:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:13:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:13:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:13:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:13:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:13:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:13:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:13:58,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:13:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:13:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:13:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:13:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:13:58,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:13:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:13:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:13:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:13:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:13:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:13:58,246 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:13:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:13:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:13:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:13:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:13:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:13:58,247 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:13:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:13:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:13:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:13:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:13:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:13:58,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:13:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:13:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:13:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:13:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:13:58,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:13:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:13:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:13:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:13:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:13:58,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:13:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:13:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:13:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:13:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:13:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:13:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:13:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:13:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:13:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:13:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:13:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:13:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:13:58,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:13:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:13:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:13:58,253 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:13:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:13:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:13:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:13:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:13:58,254 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:13:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:13:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:13:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:13:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:13:58,255 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:13:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:13:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:13:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:13:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:13:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:13:58,256 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:13:58,257 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:13:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:13:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:13:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:13:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:13:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:13:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:13:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:13:58,261 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:13:58,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:13:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:13:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:13:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:13:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:13:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:13:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:13:58,264 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:13:58,265 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:13:58,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:13:58,267 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:13:58,268 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:13:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:13:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:13:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:13:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:13:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:13:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:13:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:13:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:13:58,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:13:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:13:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:13:58,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:14:02,739 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:14:02,740 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:14:02,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:14:02 BoogieIcfgContainer [2019-11-07 04:14:02,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:14:02,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:14:02,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:14:02,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:14:02,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:13:56" (1/3) ... [2019-11-07 04:14:02,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cc424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:14:02, skipping insertion in model container [2019-11-07 04:14:02,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:57" (2/3) ... [2019-11-07 04:14:02,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57cc424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:14:02, skipping insertion in model container [2019-11-07 04:14:02,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:14:02" (3/3) ... [2019-11-07 04:14:02,750 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2019-11-07 04:14:02,761 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:14:02,771 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:14:02,783 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:14:02,867 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:14:02,868 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:14:02,868 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:14:02,868 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:14:02,868 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:14:02,868 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:14:02,868 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:14:02,868 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:14:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2019-11-07 04:14:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-07 04:14:02,918 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:02,919 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:02,922 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:02,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:02,929 INFO L82 PathProgramCache]: Analyzing trace with hash 63949910, now seen corresponding path program 1 times [2019-11-07 04:14:02,940 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:02,941 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390162760] [2019-11-07 04:14:02,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:03,570 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390162760] [2019-11-07 04:14:03,571 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:03,571 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:14:03,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50549224] [2019-11-07 04:14:03,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:14:03,579 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:03,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:14:03,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:14:03,596 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 2 states. [2019-11-07 04:14:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:03,662 INFO L93 Difference]: Finished difference Result 539 states and 637 transitions. [2019-11-07 04:14:03,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:14:03,663 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-11-07 04:14:03,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:03,683 INFO L225 Difference]: With dead ends: 539 [2019-11-07 04:14:03,683 INFO L226 Difference]: Without dead ends: 348 [2019-11-07 04:14:03,689 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:14:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-07 04:14:03,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-07 04:14:03,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-07 04:14:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 409 transitions. [2019-11-07 04:14:03,778 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 409 transitions. Word has length 158 [2019-11-07 04:14:03,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:03,781 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 409 transitions. [2019-11-07 04:14:03,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:14:03,781 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 409 transitions. [2019-11-07 04:14:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-07 04:14:03,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:03,788 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:03,788 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:03,788 INFO L82 PathProgramCache]: Analyzing trace with hash -57393484, now seen corresponding path program 1 times [2019-11-07 04:14:03,789 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:03,789 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67650558] [2019-11-07 04:14:03,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:04,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:04,059 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67650558] [2019-11-07 04:14:04,060 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:04,060 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:14:04,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17843952] [2019-11-07 04:14:04,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:14:04,066 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:04,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:14:04,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:04,066 INFO L87 Difference]: Start difference. First operand 348 states and 409 transitions. Second operand 3 states. [2019-11-07 04:14:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:04,171 INFO L93 Difference]: Finished difference Result 524 states and 606 transitions. [2019-11-07 04:14:04,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:14:04,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-11-07 04:14:04,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:04,178 INFO L225 Difference]: With dead ends: 524 [2019-11-07 04:14:04,178 INFO L226 Difference]: Without dead ends: 350 [2019-11-07 04:14:04,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:04,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-07 04:14:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-11-07 04:14:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-11-07 04:14:04,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 411 transitions. [2019-11-07 04:14:04,254 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 411 transitions. Word has length 159 [2019-11-07 04:14:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:04,257 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 411 transitions. [2019-11-07 04:14:04,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:14:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 411 transitions. [2019-11-07 04:14:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-11-07 04:14:04,272 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:04,272 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:04,273 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:04,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:04,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1686759673, now seen corresponding path program 1 times [2019-11-07 04:14:04,274 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:04,274 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225850561] [2019-11-07 04:14:04,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:04,695 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225850561] [2019-11-07 04:14:04,695 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:04,695 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:14:04,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690721951] [2019-11-07 04:14:04,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:14:04,698 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:04,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:14:04,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:04,699 INFO L87 Difference]: Start difference. First operand 350 states and 411 transitions. Second operand 3 states. [2019-11-07 04:14:04,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:04,758 INFO L93 Difference]: Finished difference Result 684 states and 832 transitions. [2019-11-07 04:14:04,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:14:04,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-11-07 04:14:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:04,764 INFO L225 Difference]: With dead ends: 684 [2019-11-07 04:14:04,765 INFO L226 Difference]: Without dead ends: 392 [2019-11-07 04:14:04,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-11-07 04:14:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2019-11-07 04:14:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-11-07 04:14:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 482 transitions. [2019-11-07 04:14:04,791 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 482 transitions. Word has length 171 [2019-11-07 04:14:04,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:04,792 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 482 transitions. [2019-11-07 04:14:04,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:14:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 482 transitions. [2019-11-07 04:14:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-07 04:14:04,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:04,796 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:04,797 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:04,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:04,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1152021825, now seen corresponding path program 1 times [2019-11-07 04:14:04,797 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:04,798 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985052642] [2019-11-07 04:14:04,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:14:05,507 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985052642] [2019-11-07 04:14:05,507 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:05,507 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 04:14:05,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457237650] [2019-11-07 04:14:05,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 04:14:05,509 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:05,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 04:14:05,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:14:05,510 INFO L87 Difference]: Start difference. First operand 391 states and 482 transitions. Second operand 26 states. [2019-11-07 04:14:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:12,716 INFO L93 Difference]: Finished difference Result 780 states and 945 transitions. [2019-11-07 04:14:12,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 04:14:12,717 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 172 [2019-11-07 04:14:12,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:12,726 INFO L225 Difference]: With dead ends: 780 [2019-11-07 04:14:12,727 INFO L226 Difference]: Without dead ends: 601 [2019-11-07 04:14:12,730 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-11-07 04:14:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-07 04:14:12,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 589. [2019-11-07 04:14:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-11-07 04:14:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 718 transitions. [2019-11-07 04:14:12,795 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 718 transitions. Word has length 172 [2019-11-07 04:14:12,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:12,799 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 718 transitions. [2019-11-07 04:14:12,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 04:14:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 718 transitions. [2019-11-07 04:14:12,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 04:14:12,803 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:12,804 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:12,804 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:12,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:12,804 INFO L82 PathProgramCache]: Analyzing trace with hash 278770332, now seen corresponding path program 1 times [2019-11-07 04:14:12,805 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:12,805 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990555175] [2019-11-07 04:14:12,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:13,056 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:14:13,057 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990555175] [2019-11-07 04:14:13,058 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:13,058 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:14:13,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228083862] [2019-11-07 04:14:13,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:14:13,060 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:13,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:14:13,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:14:13,062 INFO L87 Difference]: Start difference. First operand 589 states and 718 transitions. Second operand 10 states. [2019-11-07 04:14:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:13,144 INFO L93 Difference]: Finished difference Result 598 states and 728 transitions. [2019-11-07 04:14:13,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:14:13,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 176 [2019-11-07 04:14:13,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:13,153 INFO L225 Difference]: With dead ends: 598 [2019-11-07 04:14:13,154 INFO L226 Difference]: Without dead ends: 593 [2019-11-07 04:14:13,155 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:14:13,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-11-07 04:14:13,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2019-11-07 04:14:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2019-11-07 04:14:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 721 transitions. [2019-11-07 04:14:13,203 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 721 transitions. Word has length 176 [2019-11-07 04:14:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:13,205 INFO L462 AbstractCegarLoop]: Abstraction has 593 states and 721 transitions. [2019-11-07 04:14:13,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:14:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 721 transitions. [2019-11-07 04:14:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-07 04:14:13,210 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:13,210 INFO L410 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:13,211 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:13,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:13,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1231462198, now seen corresponding path program 1 times [2019-11-07 04:14:13,212 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:13,212 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402939568] [2019-11-07 04:14:13,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:14:14,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402939568] [2019-11-07 04:14:14,606 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126703755] [2019-11-07 04:14:14,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:14:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:15,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 2613 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:14:15,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:14:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:15,464 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:14:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:15,769 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1716264372] [2019-11-07 04:14:15,799 INFO L159 IcfgInterpreter]: Started Sifa with 163 locations of interest [2019-11-07 04:14:15,799 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:14:15,806 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:14:15,812 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:14:15,813 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs