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_spec6_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:03:06,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:03:06,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:03:06,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:03:06,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:03:06,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:03:06,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:03:06,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:03:06,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:03:06,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:03:06,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:03:06,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:03:06,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:03:06,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:03:06,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:03:06,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:03:06,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:03:06,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:03:06,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:03:06,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:03:06,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:03:06,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:03:06,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:03:06,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:03:06,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:03:06,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:03:06,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:03:06,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:03:06,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:03:06,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:03:06,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:03:06,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:03:06,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:03:06,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:03:06,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:03:06,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:03:06,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:03:06,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:03:06,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:03:06,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:03:06,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:03:06,839 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 [2019-10-07 15:03:06,854 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:03:06,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:03:06,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:03:06,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:03:06,856 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:03:06,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:03:06,856 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:03:06,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:03:06,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:03:06,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:03:06,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:03:06,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:03:06,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:03:06,857 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:03:06,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:03:06,858 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:03:06,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:03:06,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:03:06,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:03:06,859 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:03:06,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:03:06,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:03:06,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:03:06,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:03:06,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:03:06,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:03:06,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:03:06,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:03:06,860 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 [2019-10-07 15:03:07,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:03:07,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:03:07,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:03:07,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:03:07,138 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:03:07,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c [2019-10-07 15:03:07,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff64599e/88848055f6ab49139b23da391bf59d2c/FLAGf612cea9b [2019-10-07 15:03:07,898 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:03:07,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product35.cil.c [2019-10-07 15:03:07,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff64599e/88848055f6ab49139b23da391bf59d2c/FLAGf612cea9b [2019-10-07 15:03:08,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff64599e/88848055f6ab49139b23da391bf59d2c [2019-10-07 15:03:08,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:03:08,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:03:08,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:03:08,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:03:08,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:03:08,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:03:08" (1/1) ... [2019-10-07 15:03:08,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb5911b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:08, skipping insertion in model container [2019-10-07 15:03:08,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:03:08" (1/1) ... [2019-10-07 15:03:08,086 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:03:08,166 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:03:09,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:03:09,051 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:03:09,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:03:09,345 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:03:09,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09 WrapperNode [2019-10-07 15:03:09,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:03:09,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:03:09,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:03:09,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:03:09,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (1/1) ... [2019-10-07 15:03:09,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:03:09,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:03:09,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:03:09,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:03:09,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (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 [2019-10-07 15:03:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:03:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:03:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:03:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:03:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:03:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:03:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:03:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:03:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:03:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:03:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:03:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 15:03:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:03:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:03:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:03:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:03:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:03:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:03:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:03:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:03:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:03:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:03:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:03:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:03:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:03:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 15:03:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:03:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:03:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:03:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:03:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:03:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:03:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:03:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:03:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:03:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:03:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:03:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:03:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:03:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:03:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:03:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:03:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 15:03:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:03:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:03:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:03:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:03:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:03:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 15:03:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:03:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:03:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:03:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:03:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:03:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:03:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:03:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:03:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:03:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:03:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:03:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:03:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:03:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:03:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:03:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:03:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:03:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:03:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:03:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:03:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:03:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:03:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:03:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:03:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:03:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:03:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:03:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:03:09,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:03:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:03:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:03:09,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:03:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:03:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:03:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:03:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:03:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:03:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:03:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:03:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:03:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:03:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:03:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:03:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:03:09,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:03:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:03:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:03:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:03:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:03:09,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:03:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:03:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:03:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:03:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:03:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:03:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:03:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:03:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:03:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:03:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:03:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:03:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:03:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:03:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:03:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:03:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:03:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:03:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:03:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:03:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:03:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:03:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:03:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:03:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:03:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:03:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:03:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:03:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:03:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:03:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:03:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:03:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:03:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:03:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:03:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:03:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:03:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:03:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:03:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:03:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:03:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:03:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:03:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:03:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 15:03:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:03:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-07 15:03:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:03:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:03:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:03:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:03:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:03:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:03:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 15:03:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:03:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-07 15:03:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:03:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:03:09,663 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:03:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:03:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:03:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:03:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:03:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:03:09,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:03:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:03:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:03:09,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:03:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:03:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:03:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:03:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:03:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:03:09,666 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:03:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:03:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:03:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:03:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:03:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:03:09,667 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:03:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:03:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:03:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:03:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 15:03:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:03:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:03:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:03:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:03:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:03:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:03:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:03:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:03:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:03:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 15:03:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:03:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:03:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:03:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:03:09,671 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:03:09,672 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:03:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:03:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:03:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:03:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:03:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:03:09,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:03:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:03:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:03:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:03:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:03:09,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:03:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:03:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:03:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:03:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:03:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:03:09,675 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:03:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:03:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:03:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:03:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:03:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:03:09,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:03:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:03:09,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:03:14,148 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:03:14,149 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:03:14,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:14 BoogieIcfgContainer [2019-10-07 15:03:14,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:03:14,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:03:14,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:03:14,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:03:14,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:03:08" (1/3) ... [2019-10-07 15:03:14,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e74c574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:14, skipping insertion in model container [2019-10-07 15:03:14,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:03:09" (2/3) ... [2019-10-07 15:03:14,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e74c574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:03:14, skipping insertion in model container [2019-10-07 15:03:14,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:03:14" (3/3) ... [2019-10-07 15:03:14,159 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product35.cil.c [2019-10-07 15:03:14,169 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:03:14,179 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:03:14,191 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:03:14,226 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:03:14,226 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:03:14,227 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:03:14,227 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:03:14,227 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:03:14,227 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:03:14,227 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:03:14,227 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:03:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states. [2019-10-07 15:03:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 15:03:14,300 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:14,302 INFO L385 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] [2019-10-07 15:03:14,305 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:14,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:14,312 INFO L82 PathProgramCache]: Analyzing trace with hash -823884471, now seen corresponding path program 1 times [2019-10-07 15:03:14,321 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:14,321 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:14,322 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:14,322 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:14,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:15,032 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,032 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:15,033 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:03:15,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:03:15,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:03:15,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:03:15,054 INFO L87 Difference]: Start difference. First operand 486 states. Second operand 2 states. [2019-10-07 15:03:15,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:15,177 INFO L93 Difference]: Finished difference Result 747 states and 894 transitions. [2019-10-07 15:03:15,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:03:15,180 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-07 15:03:15,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:15,219 INFO L225 Difference]: With dead ends: 747 [2019-10-07 15:03:15,220 INFO L226 Difference]: Without dead ends: 459 [2019-10-07 15:03:15,237 INFO L606 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 [2019-10-07 15:03:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-10-07 15:03:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2019-10-07 15:03:15,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-10-07 15:03:15,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 544 transitions. [2019-10-07 15:03:15,350 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 544 transitions. Word has length 154 [2019-10-07 15:03:15,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:15,355 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 544 transitions. [2019-10-07 15:03:15,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:03:15,355 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 544 transitions. [2019-10-07 15:03:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-07 15:03:15,360 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:15,360 INFO L385 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] [2019-10-07 15:03:15,360 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:15,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:15,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1265004974, now seen corresponding path program 1 times [2019-10-07 15:03:15,361 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:15,361 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,361 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,361 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:15,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:15,721 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,721 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:15,721 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:15,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:15,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:15,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:15,730 INFO L87 Difference]: Start difference. First operand 459 states and 544 transitions. Second operand 3 states. [2019-10-07 15:03:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:15,864 INFO L93 Difference]: Finished difference Result 732 states and 861 transitions. [2019-10-07 15:03:15,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:15,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-07 15:03:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:15,869 INFO L225 Difference]: With dead ends: 732 [2019-10-07 15:03:15,870 INFO L226 Difference]: Without dead ends: 461 [2019-10-07 15:03:15,872 INFO L606 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 [2019-10-07 15:03:15,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-07 15:03:15,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2019-10-07 15:03:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-07 15:03:15,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 546 transitions. [2019-10-07 15:03:15,931 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 546 transitions. Word has length 155 [2019-10-07 15:03:15,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:15,932 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 546 transitions. [2019-10-07 15:03:15,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 546 transitions. [2019-10-07 15:03:15,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-07 15:03:15,935 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:15,936 INFO L385 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] [2019-10-07 15:03:15,936 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:15,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:15,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1464848670, now seen corresponding path program 1 times [2019-10-07 15:03:15,936 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:15,937 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:15,937 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,937 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:15,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:16,108 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:16,108 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:16,108 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:16,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:16,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:16,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:16,110 INFO L87 Difference]: Start difference. First operand 461 states and 546 transitions. Second operand 3 states. [2019-10-07 15:03:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:16,149 INFO L93 Difference]: Finished difference Result 908 states and 1105 transitions. [2019-10-07 15:03:16,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:16,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-10-07 15:03:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:16,153 INFO L225 Difference]: With dead ends: 908 [2019-10-07 15:03:16,154 INFO L226 Difference]: Without dead ends: 505 [2019-10-07 15:03:16,156 INFO L606 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 [2019-10-07 15:03:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2019-10-07 15:03:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 504. [2019-10-07 15:03:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2019-10-07 15:03:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 620 transitions. [2019-10-07 15:03:16,183 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 620 transitions. Word has length 167 [2019-10-07 15:03:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:16,184 INFO L462 AbstractCegarLoop]: Abstraction has 504 states and 620 transitions. [2019-10-07 15:03:16,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:16,184 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 620 transitions. [2019-10-07 15:03:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 15:03:16,187 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:16,188 INFO L385 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] [2019-10-07 15:03:16,188 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:16,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:16,189 INFO L82 PathProgramCache]: Analyzing trace with hash -418260284, now seen corresponding path program 1 times [2019-10-07 15:03:16,189 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:16,189 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:16,189 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:16,189 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:16,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:17,184 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:17,184 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:17,184 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 15:03:17,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 15:03:17,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 15:03:17,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:03:17,186 INFO L87 Difference]: Start difference. First operand 504 states and 620 transitions. Second operand 26 states. [2019-10-07 15:03:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:28,496 INFO L93 Difference]: Finished difference Result 1504 states and 1848 transitions. [2019-10-07 15:03:28,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-10-07 15:03:28,497 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 168 [2019-10-07 15:03:28,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:28,507 INFO L225 Difference]: With dead ends: 1504 [2019-10-07 15:03:28,507 INFO L226 Difference]: Without dead ends: 1237 [2019-10-07 15:03:28,510 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=294, Invalid=2898, Unknown=0, NotChecked=0, Total=3192 [2019-10-07 15:03:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2019-10-07 15:03:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1224. [2019-10-07 15:03:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1224 states. [2019-10-07 15:03:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1485 transitions. [2019-10-07 15:03:28,592 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1485 transitions. Word has length 168 [2019-10-07 15:03:28,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:28,598 INFO L462 AbstractCegarLoop]: Abstraction has 1224 states and 1485 transitions. [2019-10-07 15:03:28,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 15:03:28,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1485 transitions. [2019-10-07 15:03:28,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 15:03:28,605 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:28,606 INFO L385 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] [2019-10-07 15:03:28,606 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:28,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:28,607 INFO L82 PathProgramCache]: Analyzing trace with hash -885800308, now seen corresponding path program 1 times [2019-10-07 15:03:28,607 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:28,607 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:28,607 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:28,607 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:28,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 15:03:29,102 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:29,103 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:29,103 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-07 15:03:29,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-07 15:03:29,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-07 15:03:29,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-07 15:03:29,106 INFO L87 Difference]: Start difference. First operand 1224 states and 1485 transitions. Second operand 16 states. [2019-10-07 15:03:35,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:35,557 INFO L93 Difference]: Finished difference Result 2857 states and 3468 transitions. [2019-10-07 15:03:35,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 15:03:35,559 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 174 [2019-10-07 15:03:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:35,579 INFO L225 Difference]: With dead ends: 2857 [2019-10-07 15:03:35,579 INFO L226 Difference]: Without dead ends: 2352 [2019-10-07 15:03:35,583 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=731, Unknown=0, NotChecked=0, Total=870 [2019-10-07 15:03:35,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2019-10-07 15:03:35,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2304. [2019-10-07 15:03:35,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2304 states. [2019-10-07 15:03:35,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 2785 transitions. [2019-10-07 15:03:35,745 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 2785 transitions. Word has length 174 [2019-10-07 15:03:35,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:35,746 INFO L462 AbstractCegarLoop]: Abstraction has 2304 states and 2785 transitions. [2019-10-07 15:03:35,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-07 15:03:35,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 2785 transitions. [2019-10-07 15:03:35,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 15:03:35,752 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:35,753 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:35,753 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:35,754 INFO L82 PathProgramCache]: Analyzing trace with hash 277277250, now seen corresponding path program 1 times [2019-10-07 15:03:35,754 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:35,754 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:35,754 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:35,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:35,908 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:35,908 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:35,909 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:35,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:35,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:35,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:35,910 INFO L87 Difference]: Start difference. First operand 2304 states and 2785 transitions. Second operand 3 states. [2019-10-07 15:03:36,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:36,021 INFO L93 Difference]: Finished difference Result 4668 states and 5712 transitions. [2019-10-07 15:03:36,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:36,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-07 15:03:36,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:36,036 INFO L225 Difference]: With dead ends: 4668 [2019-10-07 15:03:36,037 INFO L226 Difference]: Without dead ends: 2422 [2019-10-07 15:03:36,045 INFO L606 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 [2019-10-07 15:03:36,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2019-10-07 15:03:36,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2420. [2019-10-07 15:03:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2420 states. [2019-10-07 15:03:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 2985 transitions. [2019-10-07 15:03:36,188 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 2985 transitions. Word has length 189 [2019-10-07 15:03:36,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:36,189 INFO L462 AbstractCegarLoop]: Abstraction has 2420 states and 2985 transitions. [2019-10-07 15:03:36,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 2985 transitions. [2019-10-07 15:03:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 15:03:36,193 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:36,194 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:36,194 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:36,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:36,195 INFO L82 PathProgramCache]: Analyzing trace with hash 561266436, now seen corresponding path program 1 times [2019-10-07 15:03:36,195 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:36,195 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:36,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:36,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:36,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:36,344 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:36,345 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:03:36,345 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:03:36,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:03:36,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:03:36,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:03:36,346 INFO L87 Difference]: Start difference. First operand 2420 states and 2985 transitions. Second operand 3 states. [2019-10-07 15:03:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:03:36,496 INFO L93 Difference]: Finished difference Result 5007 states and 6297 transitions. [2019-10-07 15:03:36,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:03:36,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-07 15:03:36,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:03:36,520 INFO L225 Difference]: With dead ends: 5007 [2019-10-07 15:03:36,521 INFO L226 Difference]: Without dead ends: 2645 [2019-10-07 15:03:36,534 INFO L606 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 [2019-10-07 15:03:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2645 states. [2019-10-07 15:03:36,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2645 to 2643. [2019-10-07 15:03:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2643 states. [2019-10-07 15:03:36,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 3367 transitions. [2019-10-07 15:03:36,838 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 3367 transitions. Word has length 190 [2019-10-07 15:03:36,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:03:36,839 INFO L462 AbstractCegarLoop]: Abstraction has 2643 states and 3367 transitions. [2019-10-07 15:03:36,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:03:36,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 3367 transitions. [2019-10-07 15:03:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 15:03:36,845 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:03:36,846 INFO L385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:03:36,846 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:03:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:03:36,846 INFO L82 PathProgramCache]: Analyzing trace with hash 30382114, now seen corresponding path program 1 times [2019-10-07 15:03:36,847 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:03:36,847 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:36,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:36,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:03:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:03:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:37,371 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 15:03:37,372 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:03:37,372 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:03:37,372 INFO L95 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 [2019-10-07 15:03:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:03:37,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:03:38,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:03:38,140 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:38,140 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:03:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 15:03:38,538 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:03:38,582 INFO L162 IcfgInterpreter]: Started Sifa with 176 locations of interest [2019-10-07 15:03:38,583 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:03:38,591 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:03:38,607 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:03:38,608 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:05:31,815 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 745 [2019-10-07 15:05:37,132 WARN L191 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 388 DAG size of output: 315 [2019-10-07 15:05:37,584 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 801 [2019-10-07 15:05:37,933 WARN L191 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 801 [2019-10-07 15:05:38,250 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 801 [2019-10-07 15:05:38,412 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:05:39,169 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:39,951 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:40,714 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:40,941 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:05:41,700 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:43,227 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1112 DAG size of output: 1110 [2019-10-07 15:05:43,960 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:44,129 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:05:44,817 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:45,577 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:46,268 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:46,437 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:05:47,143 WARN L191 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 15:05:47,171 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 592 for LOIs [2019-10-07 15:05:47,557 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 706 [2019-10-07 15:05:47,678 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 706 [2019-10-07 15:05:47,816 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-07 15:05:48,374 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1015 [2019-10-07 15:05:48,375 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1173 for LOIs [2019-10-07 15:05:49,057 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:49,769 WARN L191 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:50,044 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:05:51,244 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:05:51,938 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:52,614 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:53,021 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:05:54,148 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:05:55,365 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:56,045 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:56,322 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:05:57,450 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:05:58,586 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 1388 DAG size of output: 1173 [2019-10-07 15:05:59,293 WARN L191 SmtUtils]: Spent 703.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:05:59,838 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 676 DAG size of output: 674 [2019-10-07 15:06:00,969 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:01,655 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:02,335 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:02,602 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:03,760 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:04,441 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:05,120 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:05,394 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:06,524 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:07,200 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:07,903 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:08,169 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:09,297 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:09,976 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:10,647 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:10,917 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:12,038 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:12,735 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:13,412 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:13,678 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:14,801 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:15,476 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:16,158 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:16,425 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:17,563 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:18,246 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:18,924 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:19,189 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:20,314 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:20,998 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:21,679 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:21,945 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:23,076 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:23,753 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:24,440 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1173 [2019-10-07 15:06:24,707 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:25,829 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:27,034 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:28,168 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:28,449 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:29,583 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:31,646 WARN L191 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 1388 DAG size of output: 1386 [2019-10-07 15:06:32,786 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:33,066 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:34,189 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:35,319 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:36,451 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:36,722 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:06:37,858 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:06:39,151 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:40,291 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:40,562 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:06:41,704 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:42,879 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:44,018 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:44,300 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:06:45,434 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:46,575 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:47,737 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:48,007 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:06:49,147 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:06:50,297 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1395 [2019-10-07 15:06:51,431 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1395 [2019-10-07 15:06:51,722 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:06:52,862 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1395 [2019-10-07 15:06:53,989 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1397 [2019-10-07 15:06:55,122 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1397 [2019-10-07 15:06:55,395 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:06:56,524 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1397 [2019-10-07 15:06:58,957 WARN L191 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 1388 DAG size of output: 1386 [2019-10-07 15:07:00,076 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:00,359 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:07:01,477 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:04,387 WARN L191 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 1388 DAG size of output: 1386 [2019-10-07 15:07:05,506 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:05,810 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:07:06,927 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:08,059 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:09,167 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:09,431 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:07:10,540 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:13,430 WARN L191 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 1388 DAG size of output: 1386 [2019-10-07 15:07:14,541 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:14,814 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:07:15,923 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:17,962 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1388 DAG size of output: 1386 [2019-10-07 15:07:19,069 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:19,340 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:07:20,451 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:21,586 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:22,702 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:22,964 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 674 [2019-10-07 15:07:24,078 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1386 [2019-10-07 15:07:26,138 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 1392 DAG size of output: 1388 [2019-10-07 15:07:27,271 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1388 [2019-10-07 15:07:27,544 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:07:28,660 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:07:29,797 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:07:30,915 WARN L191 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:07:31,187 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:07:32,305 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:07:34,268 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1392 DAG size of output: 1388 [2019-10-07 15:07:35,397 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1388 [2019-10-07 15:07:35,669 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:07:36,787 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1390 [2019-10-07 15:07:38,846 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1397 DAG size of output: 1395 [2019-10-07 15:07:39,973 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 1395 [2019-10-07 15:07:40,280 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:07:41,407 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1395 [2019-10-07 15:07:43,466 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 1399 DAG size of output: 1397 [2019-10-07 15:07:44,598 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1397 [2019-10-07 15:07:44,875 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 677 [2019-10-07 15:07:46,004 WARN L191 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 1397 [2019-10-07 15:07:46,271 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:07:46,272 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:07:46,282 INFO L168 Benchmark]: Toolchain (without parser) took 278211.77 ms. Allocated memory was 137.9 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 99.3 MB in the beginning and 502.2 MB in the end (delta: -402.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2019-10-07 15:07:46,283 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 15:07:46,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1276.95 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.1 MB in the beginning and 129.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:46,288 INFO L168 Benchmark]: Boogie Preprocessor took 209.64 ms. Allocated memory is still 202.9 MB. Free memory was 129.8 MB in the beginning and 120.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:46,288 INFO L168 Benchmark]: RCFGBuilder took 4593.90 ms. Allocated memory was 202.9 MB in the beginning and 303.0 MB in the end (delta: 100.1 MB). Free memory was 120.6 MB in the beginning and 244.9 MB in the end (delta: -124.3 MB). Peak memory consumption was 145.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:07:46,289 INFO L168 Benchmark]: TraceAbstraction took 272126.89 ms. Allocated memory was 303.0 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 244.9 MB in the beginning and 502.2 MB in the end (delta: -257.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2019-10-07 15:07:46,294 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1276.95 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 99.1 MB in the beginning and 129.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 209.64 ms. Allocated memory is still 202.9 MB. Free memory was 129.8 MB in the beginning and 120.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4593.90 ms. Allocated memory was 202.9 MB in the beginning and 303.0 MB in the end (delta: 100.1 MB). Free memory was 120.6 MB in the beginning and 244.9 MB in the end (delta: -124.3 MB). Peak memory consumption was 145.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 272126.89 ms. Allocated memory was 303.0 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 244.9 MB in the beginning and 502.2 MB in the end (delta: -257.3 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...