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_spec8_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:18,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:18,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:18,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:18,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:18,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:18,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:19,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:19,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:19,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:19,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:19,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:19,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:19,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:19,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:19,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:19,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:19,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:19,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:19,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:19,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:19,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:19,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:19,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:19,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:19,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:19,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:19,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:19,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:19,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:19,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:19,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:19,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:19,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:19,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:19,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:19,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:19,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:19,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:19,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:19,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:19,060 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 [2019-10-15 03:17:19,083 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:19,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:19,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:19,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:19,085 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:19,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:19,086 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:19,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:19,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:19,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:19,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:19,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:19,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:19,088 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:19,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:19,089 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:19,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:19,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:19,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:19,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:19,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:19,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:19,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:19,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:19,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:19,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:19,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:19,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:19,094 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 [2019-10-15 03:17:19,436 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:19,456 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:19,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:19,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:19,464 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:19,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-10-15 03:17:19,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53770f266/ed85a7c17e78483ab25f3ba1696db041/FLAG8226af84f [2019-10-15 03:17:20,152 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:20,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-10-15 03:17:20,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53770f266/ed85a7c17e78483ab25f3ba1696db041/FLAG8226af84f [2019-10-15 03:17:20,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53770f266/ed85a7c17e78483ab25f3ba1696db041 [2019-10-15 03:17:20,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:20,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:20,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:20,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:20,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:20,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:20" (1/1) ... [2019-10-15 03:17:20,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:20, skipping insertion in model container [2019-10-15 03:17:20,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:20" (1/1) ... [2019-10-15 03:17:20,409 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:20,479 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:21,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:21,259 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:21,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:21,523 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:21,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21 WrapperNode [2019-10-15 03:17:21,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:21,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:21,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:21,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:21,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (1/1) ... [2019-10-15 03:17:21,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:21,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:21,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:21,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:21,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (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 [2019-10-15 03:17:21,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:21,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:21,838 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:21,839 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:21,840 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:17:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:17:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:21,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:21,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:21,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:17:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 03:17:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:17:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:17:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:17:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:17:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:17:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:17:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:17:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:26,523 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:26,523 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:26,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:26 BoogieIcfgContainer [2019-10-15 03:17:26,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:26,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:26,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:26,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:26,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:20" (1/3) ... [2019-10-15 03:17:26,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420046cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:26, skipping insertion in model container [2019-10-15 03:17:26,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:21" (2/3) ... [2019-10-15 03:17:26,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420046cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:26, skipping insertion in model container [2019-10-15 03:17:26,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:26" (3/3) ... [2019-10-15 03:17:26,535 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2019-10-15 03:17:26,547 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:26,561 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:26,575 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:26,620 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:26,620 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:26,620 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:26,620 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:26,620 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:26,623 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:26,624 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:26,624 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states. [2019-10-15 03:17:26,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 03:17:26,689 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:26,691 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:26,694 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:26,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:26,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1071058540, now seen corresponding path program 1 times [2019-10-15 03:17:26,723 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:26,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736079401] [2019-10-15 03:17:26,725 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:26,725 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:26,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:27,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736079401] [2019-10-15 03:17:27,467 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:27,467 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:27,468 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60951722] [2019-10-15 03:17:27,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:27,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:27,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:27,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:27,497 INFO L87 Difference]: Start difference. First operand 375 states. Second operand 2 states. [2019-10-15 03:17:27,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:27,602 INFO L93 Difference]: Finished difference Result 551 states and 650 transitions. [2019-10-15 03:17:27,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:27,604 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-15 03:17:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:27,631 INFO L225 Difference]: With dead ends: 551 [2019-10-15 03:17:27,631 INFO L226 Difference]: Without dead ends: 354 [2019-10-15 03:17:27,646 INFO L600 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 [2019-10-15 03:17:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2019-10-15 03:17:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2019-10-15 03:17:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-15 03:17:27,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 417 transitions. [2019-10-15 03:17:27,786 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 417 transitions. Word has length 114 [2019-10-15 03:17:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:27,790 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 417 transitions. [2019-10-15 03:17:27,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 417 transitions. [2019-10-15 03:17:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-15 03:17:27,794 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:27,795 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:27,795 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:27,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1986530798, now seen corresponding path program 1 times [2019-10-15 03:17:27,797 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:27,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81802501] [2019-10-15 03:17:27,797 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:27,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:27,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:28,081 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:28,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81802501] [2019-10-15 03:17:28,082 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:28,082 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:28,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534706864] [2019-10-15 03:17:28,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:28,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:28,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:28,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:28,087 INFO L87 Difference]: Start difference. First operand 354 states and 417 transitions. Second operand 3 states. [2019-10-15 03:17:28,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:28,162 INFO L93 Difference]: Finished difference Result 536 states and 622 transitions. [2019-10-15 03:17:28,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:28,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-15 03:17:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:28,168 INFO L225 Difference]: With dead ends: 536 [2019-10-15 03:17:28,168 INFO L226 Difference]: Without dead ends: 356 [2019-10-15 03:17:28,170 INFO L600 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 [2019-10-15 03:17:28,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-15 03:17:28,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2019-10-15 03:17:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2019-10-15 03:17:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 419 transitions. [2019-10-15 03:17:28,205 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 419 transitions. Word has length 115 [2019-10-15 03:17:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:28,206 INFO L462 AbstractCegarLoop]: Abstraction has 356 states and 419 transitions. [2019-10-15 03:17:28,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:28,206 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 419 transitions. [2019-10-15 03:17:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 03:17:28,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:28,209 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:28,209 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:28,209 INFO L82 PathProgramCache]: Analyzing trace with hash 652216192, now seen corresponding path program 1 times [2019-10-15 03:17:28,210 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:28,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981048904] [2019-10-15 03:17:28,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:28,210 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:28,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:28,425 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981048904] [2019-10-15 03:17:28,426 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:28,426 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:28,426 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61836027] [2019-10-15 03:17:28,428 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:28,428 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:28,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:28,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:28,429 INFO L87 Difference]: Start difference. First operand 356 states and 419 transitions. Second operand 3 states. [2019-10-15 03:17:28,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:28,492 INFO L93 Difference]: Finished difference Result 696 states and 848 transitions. [2019-10-15 03:17:28,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:28,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-15 03:17:28,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:28,500 INFO L225 Difference]: With dead ends: 696 [2019-10-15 03:17:28,501 INFO L226 Difference]: Without dead ends: 398 [2019-10-15 03:17:28,503 INFO L600 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 [2019-10-15 03:17:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-15 03:17:28,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2019-10-15 03:17:28,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-15 03:17:28,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 490 transitions. [2019-10-15 03:17:28,546 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 490 transitions. Word has length 127 [2019-10-15 03:17:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:28,548 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 490 transitions. [2019-10-15 03:17:28,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 490 transitions. [2019-10-15 03:17:28,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 03:17:28,553 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:28,554 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:28,554 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:28,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:28,555 INFO L82 PathProgramCache]: Analyzing trace with hash -846358647, now seen corresponding path program 1 times [2019-10-15 03:17:28,558 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:28,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783705566] [2019-10-15 03:17:28,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:28,559 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:28,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:28,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783705566] [2019-10-15 03:17:28,914 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:28,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:28,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530514176] [2019-10-15 03:17:28,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:28,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:28,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:28,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:28,916 INFO L87 Difference]: Start difference. First operand 397 states and 490 transitions. Second operand 3 states. [2019-10-15 03:17:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:28,967 INFO L93 Difference]: Finished difference Result 610 states and 733 transitions. [2019-10-15 03:17:28,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:28,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-15 03:17:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:28,978 INFO L225 Difference]: With dead ends: 610 [2019-10-15 03:17:28,978 INFO L226 Difference]: Without dead ends: 431 [2019-10-15 03:17:28,979 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:28,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-15 03:17:29,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-10-15 03:17:29,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-10-15 03:17:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 522 transitions. [2019-10-15 03:17:29,015 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 522 transitions. Word has length 128 [2019-10-15 03:17:29,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:29,017 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 522 transitions. [2019-10-15 03:17:29,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 522 transitions. [2019-10-15 03:17:29,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 03:17:29,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:29,027 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:29,028 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:29,028 INFO L82 PathProgramCache]: Analyzing trace with hash -911134715, now seen corresponding path program 1 times [2019-10-15 03:17:29,028 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:29,029 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341556612] [2019-10-15 03:17:29,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:29,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:29,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 03:17:29,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341556612] [2019-10-15 03:17:29,443 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:29,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:17:29,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085426204] [2019-10-15 03:17:29,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:17:29,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:29,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:17:29,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:17:29,447 INFO L87 Difference]: Start difference. First operand 431 states and 522 transitions. Second operand 11 states. [2019-10-15 03:17:32,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:32,327 INFO L93 Difference]: Finished difference Result 555 states and 648 transitions. [2019-10-15 03:17:32,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:17:32,328 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 222 [2019-10-15 03:17:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:32,333 INFO L225 Difference]: With dead ends: 555 [2019-10-15 03:17:32,333 INFO L226 Difference]: Without dead ends: 487 [2019-10-15 03:17:32,334 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:17:32,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-10-15 03:17:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 485. [2019-10-15 03:17:32,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-15 03:17:32,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 576 transitions. [2019-10-15 03:17:32,364 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 576 transitions. Word has length 222 [2019-10-15 03:17:32,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:32,365 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 576 transitions. [2019-10-15 03:17:32,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:17:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 576 transitions. [2019-10-15 03:17:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 03:17:32,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:32,370 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:32,370 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:32,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:32,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1841568789, now seen corresponding path program 1 times [2019-10-15 03:17:32,371 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:32,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069130337] [2019-10-15 03:17:32,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:32,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-15 03:17:33,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069130337] [2019-10-15 03:17:33,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645423809] [2019-10-15 03:17:33,121 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 [2019-10-15 03:17:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:33,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:17:33,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:34,114 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 03:17:34,115 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 03:17:34,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [799897695] [2019-10-15 03:17:34,703 INFO L162 IcfgInterpreter]: Started Sifa with 195 locations of interest [2019-10-15 03:17:34,703 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:34,711 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:34,719 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:34,720 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs