java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:45,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:45,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:45,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:45,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:45,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:45,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:45,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:45,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:45,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:45,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:45,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:45,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:45,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:45,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:45,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:45,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:45,627 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:45,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:45,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:45,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:45,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:45,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:45,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:45,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:45,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:45,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:45,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:45,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:45,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:45,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:45,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:45,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:45,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:45,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:45,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:45,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:45,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:45,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:45,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:45,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:45,660 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 [2019-10-13 23:12:45,682 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:45,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:45,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:45,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:45,684 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:45,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:45,685 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:45,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:45,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:45,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:45,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:45,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:45,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:45,687 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:45,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:45,688 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:45,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:45,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:45,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:45,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:45,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:45,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:45,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:45,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:45,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:45,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:45,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:45,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:45,691 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 [2019-10-13 23:12:45,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:46,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:46,005 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:46,006 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:46,007 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:46,008 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-10-13 23:12:46,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7e71d7e/e133682e8c2e447da5c7ffc88df636e4/FLAG66d55fcc5 [2019-10-13 23:12:46,687 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:46,687 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-10-13 23:12:46,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7e71d7e/e133682e8c2e447da5c7ffc88df636e4/FLAG66d55fcc5 [2019-10-13 23:12:46,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7e71d7e/e133682e8c2e447da5c7ffc88df636e4 [2019-10-13 23:12:46,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:46,888 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:46,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:46,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:46,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:46,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aceb178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:46, skipping insertion in model container [2019-10-13 23:12:46,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:46" (1/1) ... [2019-10-13 23:12:46,903 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:46,983 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:47,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:47,771 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:47,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:47,960 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:47,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47 WrapperNode [2019-10-13 23:12:47,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:47,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:47,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:47,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:47,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:47,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:48,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:48,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:48,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:48,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:48,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (1/1) ... [2019-10-13 23:12:48,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:48,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:48,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:48,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:48,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (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 [2019-10-13 23:12:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:48,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:48,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:48,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:48,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:48,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:48,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:48,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:48,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:48,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:48,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:48,227 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:48,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:48,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:12:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:12:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:48,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:48,243 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:48,245 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:12:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:12:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:48,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:48,270 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:48,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:12:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:48,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:48,274 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:48,275 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:48,276 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:12:48,277 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:48,278 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:48,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:52,902 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:52,902 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:52,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:52 BoogieIcfgContainer [2019-10-13 23:12:52,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:52,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:52,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:52,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:52,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:46" (1/3) ... [2019-10-13 23:12:52,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48627829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:52, skipping insertion in model container [2019-10-13 23:12:52,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:47" (2/3) ... [2019-10-13 23:12:52,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48627829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:52, skipping insertion in model container [2019-10-13 23:12:52,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:52" (3/3) ... [2019-10-13 23:12:52,914 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product32.cil.c [2019-10-13 23:12:52,924 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:52,933 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:52,948 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:52,981 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:52,981 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:52,981 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:52,982 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:52,982 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:52,982 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:52,982 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:52,982 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:53,014 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-10-13 23:12:53,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:12:53,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,033 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,036 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,042 INFO L82 PathProgramCache]: Analyzing trace with hash -226681820, now seen corresponding path program 1 times [2019-10-13 23:12:53,051 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306366996] [2019-10-13 23:12:53,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:53,676 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306366996] [2019-10-13 23:12:53,677 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:53,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:53,677 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460012184] [2019-10-13 23:12:53,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:53,682 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:53,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:53,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:53,699 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-10-13 23:12:53,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:53,768 INFO L93 Difference]: Finished difference Result 634 states and 756 transitions. [2019-10-13 23:12:53,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:53,770 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-13 23:12:53,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:53,793 INFO L225 Difference]: With dead ends: 634 [2019-10-13 23:12:53,793 INFO L226 Difference]: Without dead ends: 399 [2019-10-13 23:12:53,801 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:53,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-13 23:12:53,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-13 23:12:53,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-13 23:12:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-13 23:12:53,895 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 132 [2019-10-13 23:12:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:53,898 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-13 23:12:53,898 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:53,898 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-13 23:12:53,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:12:53,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:53,910 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:53,911 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:53,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:53,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1331979660, now seen corresponding path program 1 times [2019-10-13 23:12:53,912 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:53,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567057020] [2019-10-13 23:12:53,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:53,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:54,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567057020] [2019-10-13 23:12:54,245 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:54,245 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:54,245 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300303538] [2019-10-13 23:12:54,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:54,251 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:54,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:54,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,251 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-13 23:12:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:54,333 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2019-10-13 23:12:54,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:54,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 23:12:54,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:54,344 INFO L225 Difference]: With dead ends: 619 [2019-10-13 23:12:54,346 INFO L226 Difference]: Without dead ends: 401 [2019-10-13 23:12:54,350 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-13 23:12:54,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-13 23:12:54,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-13 23:12:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2019-10-13 23:12:54,395 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 133 [2019-10-13 23:12:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:54,395 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2019-10-13 23:12:54,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:54,395 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2019-10-13 23:12:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:12:54,398 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,398 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:54,398 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1909538730, now seen corresponding path program 1 times [2019-10-13 23:12:54,399 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349739164] [2019-10-13 23:12:54,399 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:54,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349739164] [2019-10-13 23:12:54,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:54,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:54,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789454075] [2019-10-13 23:12:54,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:54,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:54,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:54,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,554 INFO L87 Difference]: Start difference. First operand 401 states and 474 transitions. Second operand 3 states. [2019-10-13 23:12:54,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:54,597 INFO L93 Difference]: Finished difference Result 786 states and 958 transitions. [2019-10-13 23:12:54,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:54,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 23:12:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:54,605 INFO L225 Difference]: With dead ends: 786 [2019-10-13 23:12:54,605 INFO L226 Difference]: Without dead ends: 443 [2019-10-13 23:12:54,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-13 23:12:54,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-13 23:12:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-13 23:12:54,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 545 transitions. [2019-10-13 23:12:54,645 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 545 transitions. Word has length 142 [2019-10-13 23:12:54,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:54,646 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 545 transitions. [2019-10-13 23:12:54,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:54,647 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 545 transitions. [2019-10-13 23:12:54,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:12:54,657 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,658 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:54,658 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,660 INFO L82 PathProgramCache]: Analyzing trace with hash -183691488, now seen corresponding path program 1 times [2019-10-13 23:12:54,660 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974683945] [2019-10-13 23:12:54,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:54,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974683945] [2019-10-13 23:12:54,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:54,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:54,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353765258] [2019-10-13 23:12:54,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:54,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:54,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:54,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,922 INFO L87 Difference]: Start difference. First operand 442 states and 545 transitions. Second operand 3 states. [2019-10-13 23:12:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:54,949 INFO L93 Difference]: Finished difference Result 906 states and 1166 transitions. [2019-10-13 23:12:54,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:54,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-10-13 23:12:54,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:54,953 INFO L225 Difference]: With dead ends: 906 [2019-10-13 23:12:54,953 INFO L226 Difference]: Without dead ends: 522 [2019-10-13 23:12:54,955 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:54,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-10-13 23:12:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2019-10-13 23:12:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-10-13 23:12:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 681 transitions. [2019-10-13 23:12:54,977 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 681 transitions. Word has length 143 [2019-10-13 23:12:54,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:54,977 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 681 transitions. [2019-10-13 23:12:54,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:54,978 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 681 transitions. [2019-10-13 23:12:54,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:12:54,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,981 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:54,981 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1379273147, now seen corresponding path program 1 times [2019-10-13 23:12:54,982 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083327062] [2019-10-13 23:12:54,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:55,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083327062] [2019-10-13 23:12:55,177 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:55,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:55,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074103530] [2019-10-13 23:12:55,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:55,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:55,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:55,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:55,180 INFO L87 Difference]: Start difference. First operand 521 states and 681 transitions. Second operand 3 states. [2019-10-13 23:12:55,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:55,242 INFO L93 Difference]: Finished difference Result 808 states and 1017 transitions. [2019-10-13 23:12:55,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:55,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 23:12:55,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:55,252 INFO L225 Difference]: With dead ends: 808 [2019-10-13 23:12:55,252 INFO L226 Difference]: Without dead ends: 602 [2019-10-13 23:12:55,254 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:55,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-13 23:12:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2019-10-13 23:12:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-10-13 23:12:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 772 transitions. [2019-10-13 23:12:55,298 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 772 transitions. Word has length 146 [2019-10-13 23:12:55,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:55,301 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 772 transitions. [2019-10-13 23:12:55,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:55,301 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 772 transitions. [2019-10-13 23:12:55,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-13 23:12:55,308 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:55,308 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:55,309 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:55,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:55,309 INFO L82 PathProgramCache]: Analyzing trace with hash -92984883, now seen corresponding path program 1 times [2019-10-13 23:12:55,309 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:55,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386674096] [2019-10-13 23:12:55,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:55,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386674096] [2019-10-13 23:12:55,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:55,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:12:55,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646502000] [2019-10-13 23:12:55,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:12:55,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:55,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:12:55,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:12:55,794 INFO L87 Difference]: Start difference. First operand 601 states and 772 transitions. Second operand 14 states. [2019-10-13 23:12:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:59,102 INFO L93 Difference]: Finished difference Result 1384 states and 1755 transitions. [2019-10-13 23:12:59,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:12:59,102 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2019-10-13 23:12:59,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:59,108 INFO L225 Difference]: With dead ends: 1384 [2019-10-13 23:12:59,108 INFO L226 Difference]: Without dead ends: 1120 [2019-10-13 23:12:59,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:12:59,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-10-13 23:12:59,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2019-10-13 23:12:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-10-13 23:12:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1438 transitions. [2019-10-13 23:12:59,166 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1438 transitions. Word has length 257 [2019-10-13 23:12:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:59,167 INFO L462 AbstractCegarLoop]: Abstraction has 1109 states and 1438 transitions. [2019-10-13 23:12:59,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:12:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1438 transitions. [2019-10-13 23:12:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-13 23:12:59,174 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:59,174 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:59,175 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:59,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash -278346228, now seen corresponding path program 1 times [2019-10-13 23:12:59,176 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:59,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453354937] [2019-10-13 23:12:59,176 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,176 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:59,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453354937] [2019-10-13 23:12:59,418 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:59,419 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:59,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146394734] [2019-10-13 23:12:59,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:59,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:59,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:59,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,421 INFO L87 Difference]: Start difference. First operand 1109 states and 1438 transitions. Second operand 3 states. [2019-10-13 23:12:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:59,480 INFO L93 Difference]: Finished difference Result 2458 states and 3331 transitions. [2019-10-13 23:12:59,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:59,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-13 23:12:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:59,488 INFO L225 Difference]: With dead ends: 2458 [2019-10-13 23:12:59,488 INFO L226 Difference]: Without dead ends: 1407 [2019-10-13 23:12:59,492 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-13 23:12:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1405. [2019-10-13 23:12:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2019-10-13 23:12:59,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2019-10-13 23:12:59,571 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 273 [2019-10-13 23:12:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:59,573 INFO L462 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2019-10-13 23:12:59,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2019-10-13 23:12:59,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-13 23:12:59,583 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:59,584 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:59,584 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:59,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:59,584 INFO L82 PathProgramCache]: Analyzing trace with hash 176555926, now seen corresponding path program 1 times [2019-10-13 23:12:59,585 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:59,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890729248] [2019-10-13 23:12:59,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:59,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:12:59,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890729248] [2019-10-13 23:12:59,782 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:59,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:59,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76751340] [2019-10-13 23:12:59,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:59,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:59,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:59,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,784 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand 3 states. [2019-10-13 23:12:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:59,886 INFO L93 Difference]: Finished difference Result 3322 states and 4815 transitions. [2019-10-13 23:12:59,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:59,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-13 23:12:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:59,900 INFO L225 Difference]: With dead ends: 3322 [2019-10-13 23:12:59,901 INFO L226 Difference]: Without dead ends: 1975 [2019-10-13 23:12:59,908 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:59,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-10-13 23:13:00,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2019-10-13 23:13:00,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2019-10-13 23:13:00,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2914 transitions. [2019-10-13 23:13:00,056 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2914 transitions. Word has length 274 [2019-10-13 23:13:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:00,058 INFO L462 AbstractCegarLoop]: Abstraction has 1973 states and 2914 transitions. [2019-10-13 23:13:00,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2914 transitions. [2019-10-13 23:13:00,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-13 23:13:00,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:00,070 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:00,070 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:00,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:00,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1586240276, now seen corresponding path program 1 times [2019-10-13 23:13:00,071 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:00,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321706738] [2019-10-13 23:13:00,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:00,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321706738] [2019-10-13 23:13:00,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:00,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:00,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14417020] [2019-10-13 23:13:00,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:00,332 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:00,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:00,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,333 INFO L87 Difference]: Start difference. First operand 1973 states and 2914 transitions. Second operand 3 states. [2019-10-13 23:13:00,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:00,449 INFO L93 Difference]: Finished difference Result 4978 states and 7639 transitions. [2019-10-13 23:13:00,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:00,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-13 23:13:00,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:00,466 INFO L225 Difference]: With dead ends: 4978 [2019-10-13 23:13:00,466 INFO L226 Difference]: Without dead ends: 3063 [2019-10-13 23:13:00,473 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-13 23:13:00,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3061. [2019-10-13 23:13:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-10-13 23:13:00,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4754 transitions. [2019-10-13 23:13:00,613 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4754 transitions. Word has length 275 [2019-10-13 23:13:00,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:00,614 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 4754 transitions. [2019-10-13 23:13:00,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:00,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4754 transitions. [2019-10-13 23:13:00,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-10-13 23:13:00,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:00,630 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:00,631 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:00,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:00,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1325756234, now seen corresponding path program 1 times [2019-10-13 23:13:00,631 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:00,631 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177912124] [2019-10-13 23:13:00,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:00,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:00,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177912124] [2019-10-13 23:13:00,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:00,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:00,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558048116] [2019-10-13 23:13:00,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:00,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:00,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:00,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:00,854 INFO L87 Difference]: Start difference. First operand 3061 states and 4754 transitions. Second operand 3 states. [2019-10-13 23:13:01,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:01,062 INFO L93 Difference]: Finished difference Result 8274 states and 13191 transitions. [2019-10-13 23:13:01,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:01,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-10-13 23:13:01,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:01,099 INFO L225 Difference]: With dead ends: 8274 [2019-10-13 23:13:01,099 INFO L226 Difference]: Without dead ends: 5271 [2019-10-13 23:13:01,111 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2019-10-13 23:13:01,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5269. [2019-10-13 23:13:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5269 states. [2019-10-13 23:13:01,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 8434 transitions. [2019-10-13 23:13:01,375 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 8434 transitions. Word has length 276 [2019-10-13 23:13:01,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:01,376 INFO L462 AbstractCegarLoop]: Abstraction has 5269 states and 8434 transitions. [2019-10-13 23:13:01,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:01,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 8434 transitions. [2019-10-13 23:13:01,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-13 23:13:01,403 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:01,403 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:01,404 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:01,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:01,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1177865268, now seen corresponding path program 1 times [2019-10-13 23:13:01,404 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:01,404 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924022551] [2019-10-13 23:13:01,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:01,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:01,579 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:01,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924022551] [2019-10-13 23:13:01,580 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:01,580 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:01,580 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719476846] [2019-10-13 23:13:01,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:01,581 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:01,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:01,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:01,582 INFO L87 Difference]: Start difference. First operand 5269 states and 8434 transitions. Second operand 3 states. [2019-10-13 23:13:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:01,958 INFO L93 Difference]: Finished difference Result 14578 states and 23719 transitions. [2019-10-13 23:13:01,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:01,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-13 23:13:01,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:02,016 INFO L225 Difference]: With dead ends: 14578 [2019-10-13 23:13:02,017 INFO L226 Difference]: Without dead ends: 9367 [2019-10-13 23:13:02,037 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2019-10-13 23:13:02,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2019-10-13 23:13:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2019-10-13 23:13:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 15218 transitions. [2019-10-13 23:13:02,480 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 15218 transitions. Word has length 277 [2019-10-13 23:13:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:02,480 INFO L462 AbstractCegarLoop]: Abstraction has 9365 states and 15218 transitions. [2019-10-13 23:13:02,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:02,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 15218 transitions. [2019-10-13 23:13:02,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-13 23:13:02,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:02,534 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:02,534 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:02,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:02,535 INFO L82 PathProgramCache]: Analyzing trace with hash 373203796, now seen corresponding path program 1 times [2019-10-13 23:13:02,535 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:02,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040816341] [2019-10-13 23:13:02,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:02,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:03,192 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:03,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040816341] [2019-10-13 23:13:03,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406391376] [2019-10-13 23:13:03,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:13:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:03,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:03,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-13 23:13:04,099 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:04,864 WARN L191 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-13 23:13:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-13 23:13:05,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1132464884] [2019-10-13 23:13:05,283 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-13 23:13:05,283 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:05,290 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:05,298 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:05,298 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs