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 0.1.24-36ac518-m [2019-10-07 15:09:35,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:09:35,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:09:35,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:09:35,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:09:35,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:09:35,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:09:35,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:09:35,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:09:35,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:09:35,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:09:35,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:09:35,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:09:35,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:09:35,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:09:35,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:09:35,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:09:35,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:09:35,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:09:35,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:09:35,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:09:35,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:09:35,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:09:35,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:09:35,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:09:35,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:09:35,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:09:35,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:09:35,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:09:35,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:09:35,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:09:35,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:09:35,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:09:35,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:09:35,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:09:35,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:09:35,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:09:35,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:09:35,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:09:35,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:09:35,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:09:35,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 15:09:35,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:09:35,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:09:35,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:09:35,633 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:09:35,633 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:09:35,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:09:35,634 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:09:35,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:09:35,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:09:35,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:09:35,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:09:35,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:09:35,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:09:35,635 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:09:35,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:09:35,636 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:09:35,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:09:35,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:09:35,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:09:35,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:09:35,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:09:35,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:09:35,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:09:35,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:09:35,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:09:35,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:09:35,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:09:35,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:09:35,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 15:09:35,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:09:35,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:09:35,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:09:35,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:09:35,936 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:09:35,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-10-07 15:09:36,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e276578c3/bcc2aff503c14eba85aaef87b549eda2/FLAG702ffd787 [2019-10-07 15:09:36,614 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:09:36,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-10-07 15:09:36,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e276578c3/bcc2aff503c14eba85aaef87b549eda2/FLAG702ffd787 [2019-10-07 15:09:36,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e276578c3/bcc2aff503c14eba85aaef87b549eda2 [2019-10-07 15:09:36,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:09:36,847 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:09:36,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:09:36,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:09:36,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:09:36,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:09:36" (1/1) ... [2019-10-07 15:09:36,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3264c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:36, skipping insertion in model container [2019-10-07 15:09:36,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:09:36" (1/1) ... [2019-10-07 15:09:36,865 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:09:36,974 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:09:37,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:09:37,674 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:09:37,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:09:37,943 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:09:37,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37 WrapperNode [2019-10-07 15:09:37,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:09:37,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:09:37,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:09:37,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:09:37,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:37,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:38,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:38,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:38,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:38,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:38,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... [2019-10-07 15:09:38,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:09:38,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:09:38,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:09:38,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:09:38,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:09:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:09:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:09:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:09:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 15:09:38,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 15:09:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 15:09:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 15:09:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 15:09:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 15:09:38,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 15:09:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 15:09:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 15:09:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 15:09:38,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 15:09:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 15:09:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 15:09:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 15:09:38,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 15:09:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 15:09:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 15:09:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 15:09:38,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 15:09:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 15:09:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 15:09:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 15:09:38,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 15:09:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 15:09:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 15:09:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 15:09:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 15:09:38,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 15:09:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 15:09:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:09:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:09:38,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:09:38,269 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 15:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 15:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-07 15:09:38,270 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 15:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 15:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 15:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 15:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 15:09:38,271 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 15:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 15:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 15:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 15:09:38,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 15:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 15:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 15:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 15:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 15:09:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 15:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 15:09:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 15:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 15:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 15:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 15:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 15:09:38,275 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 15:09:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 15:09:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 15:09:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-07 15:09:38,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:09:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 15:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 15:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 15:09:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 15:09:38,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 15:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 15:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 15:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 15:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 15:09:38,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 15:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 15:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 15:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 15:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 15:09:38,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 15:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 15:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 15:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:09:38,282 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-07 15:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 15:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 15:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 15:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 15:09:38,283 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 15:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 15:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 15:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 15:09:38,284 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 15:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 15:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 15:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 15:09:38,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 15:09:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 15:09:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 15:09:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-07 15:09:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 15:09:38,286 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 15:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 15:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 15:09:38,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 15:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 15:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 15:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 15:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 15:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 15:09:38,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 15:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 15:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 15:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 15:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 15:09:38,289 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 15:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 15:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 15:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 15:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 15:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 15:09:38,290 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 15:09:38,291 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 15:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 15:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 15:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:09:38,292 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:09:38,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:09:38,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:09:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:09:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:09:38,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:09:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:09:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:09:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:09:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:09:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 15:09:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:09:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 15:09:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 15:09:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 15:09:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 15:09:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 15:09:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 15:09:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 15:09:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 15:09:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 15:09:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 15:09:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 15:09:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 15:09:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 15:09:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 15:09:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 15:09:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:09:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 15:09:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 15:09:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 15:09:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 15:09:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 15:09:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 15:09:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:09:38,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:09:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 15:09:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 15:09:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 15:09:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 15:09:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 15:09:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 15:09:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 15:09:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 15:09:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 15:09:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 15:09:38,304 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-07 15:09:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 15:09:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 15:09:38,305 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 15:09:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-07 15:09:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-07 15:09:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:09:38,306 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 15:09:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 15:09:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 15:09:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 15:09:38,307 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 15:09:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 15:09:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 15:09:38,308 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 15:09:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 15:09:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 15:09:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 15:09:38,309 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 15:09:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 15:09:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 15:09:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 15:09:38,310 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 15:09:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 15:09:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 15:09:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-07 15:09:38,311 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 15:09:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 15:09:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 15:09:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 15:09:38,312 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-07 15:09:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 15:09:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 15:09:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 15:09:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:09:38,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:09:38,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:09:43,287 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:09:43,288 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 15:09:43,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:09:43 BoogieIcfgContainer [2019-10-07 15:09:43,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:09:43,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:09:43,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:09:43,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:09:43,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:09:36" (1/3) ... [2019-10-07 15:09:43,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78df7dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:09:43, skipping insertion in model container [2019-10-07 15:09:43,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:09:37" (2/3) ... [2019-10-07 15:09:43,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78df7dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:09:43, skipping insertion in model container [2019-10-07 15:09:43,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:09:43" (3/3) ... [2019-10-07 15:09:43,298 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product32.cil.c [2019-10-07 15:09:43,308 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:09:43,316 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:09:43,327 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:09:43,357 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:09:43,358 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:09:43,358 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:09:43,358 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:09:43,358 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:09:43,358 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:09:43,359 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:09:43,359 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:09:43,390 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2019-10-07 15:09:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-07 15:09:43,460 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:43,461 INFO L385 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] [2019-10-07 15:09:43,463 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:43,470 INFO L82 PathProgramCache]: Analyzing trace with hash -226681820, now seen corresponding path program 1 times [2019-10-07 15:09:43,478 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:43,478 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:43,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:43,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:43,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:44,189 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:09:44,189 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:44,190 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:44,190 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:09:44,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:09:44,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:09:44,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:09:44,209 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 2 states. [2019-10-07 15:09:44,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:44,297 INFO L93 Difference]: Finished difference Result 634 states and 756 transitions. [2019-10-07 15:09:44,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:09:44,299 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-07 15:09:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:44,325 INFO L225 Difference]: With dead ends: 634 [2019-10-07 15:09:44,326 INFO L226 Difference]: Without dead ends: 399 [2019-10-07 15:09:44,335 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:09:44,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-07 15:09:44,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-07 15:09:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-07 15:09:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-07 15:09:44,422 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 132 [2019-10-07 15:09:44,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:44,424 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-07 15:09:44,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:09:44,424 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-07 15:09:44,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 15:09:44,430 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:44,431 INFO L385 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] [2019-10-07 15:09:44,432 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:44,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:44,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1331979660, now seen corresponding path program 1 times [2019-10-07 15:09:44,432 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:44,432 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:44,433 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:44,433 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:09:44,646 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:44,647 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:44,647 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:44,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:44,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:44,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:44,650 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-07 15:09:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:44,692 INFO L93 Difference]: Finished difference Result 619 states and 724 transitions. [2019-10-07 15:09:44,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:44,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-07 15:09:44,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:44,697 INFO L225 Difference]: With dead ends: 619 [2019-10-07 15:09:44,697 INFO L226 Difference]: Without dead ends: 401 [2019-10-07 15:09:44,700 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-10-07 15:09:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2019-10-07 15:09:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-07 15:09:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 474 transitions. [2019-10-07 15:09:44,740 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 474 transitions. Word has length 133 [2019-10-07 15:09:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:44,741 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 474 transitions. [2019-10-07 15:09:44,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 474 transitions. [2019-10-07 15:09:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 15:09:44,745 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:44,748 INFO L385 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] [2019-10-07 15:09:44,749 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:44,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:44,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1909538730, now seen corresponding path program 1 times [2019-10-07 15:09:44,749 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:44,750 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:44,750 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:44,750 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:44,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:45,040 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:09:45,041 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:45,041 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:45,041 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:45,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:45,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:45,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:45,045 INFO L87 Difference]: Start difference. First operand 401 states and 474 transitions. Second operand 3 states. [2019-10-07 15:09:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:45,117 INFO L93 Difference]: Finished difference Result 786 states and 958 transitions. [2019-10-07 15:09:45,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:45,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 15:09:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:45,126 INFO L225 Difference]: With dead ends: 786 [2019-10-07 15:09:45,126 INFO L226 Difference]: Without dead ends: 443 [2019-10-07 15:09:45,132 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:45,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-07 15:09:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-07 15:09:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-07 15:09:45,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 545 transitions. [2019-10-07 15:09:45,186 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 545 transitions. Word has length 142 [2019-10-07 15:09:45,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:45,186 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 545 transitions. [2019-10-07 15:09:45,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:45,187 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 545 transitions. [2019-10-07 15:09:45,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 15:09:45,196 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:45,198 INFO L385 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] [2019-10-07 15:09:45,198 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash -183691488, now seen corresponding path program 1 times [2019-10-07 15:09:45,199 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:45,200 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:45,200 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:45,200 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 15:09:45,408 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:45,408 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:45,409 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:45,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:45,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:45,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:45,410 INFO L87 Difference]: Start difference. First operand 442 states and 545 transitions. Second operand 3 states. [2019-10-07 15:09:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:45,446 INFO L93 Difference]: Finished difference Result 906 states and 1166 transitions. [2019-10-07 15:09:45,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:45,446 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2019-10-07 15:09:45,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:45,451 INFO L225 Difference]: With dead ends: 906 [2019-10-07 15:09:45,451 INFO L226 Difference]: Without dead ends: 522 [2019-10-07 15:09:45,453 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2019-10-07 15:09:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 521. [2019-10-07 15:09:45,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-10-07 15:09:45,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 681 transitions. [2019-10-07 15:09:45,487 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 681 transitions. Word has length 143 [2019-10-07 15:09:45,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:45,489 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 681 transitions. [2019-10-07 15:09:45,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 681 transitions. [2019-10-07 15:09:45,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 15:09:45,494 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:45,494 INFO L385 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] [2019-10-07 15:09:45,494 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:45,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1379273147, now seen corresponding path program 1 times [2019-10-07 15:09:45,495 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:45,495 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:45,495 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:45,496 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 15:09:45,712 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:45,712 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:45,713 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:45,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:45,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:45,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:45,714 INFO L87 Difference]: Start difference. First operand 521 states and 681 transitions. Second operand 3 states. [2019-10-07 15:09:45,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:45,772 INFO L93 Difference]: Finished difference Result 808 states and 1017 transitions. [2019-10-07 15:09:45,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:45,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-07 15:09:45,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:45,779 INFO L225 Difference]: With dead ends: 808 [2019-10-07 15:09:45,779 INFO L226 Difference]: Without dead ends: 602 [2019-10-07 15:09:45,781 INFO L606 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 [2019-10-07 15:09:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-07 15:09:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2019-10-07 15:09:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-10-07 15:09:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 772 transitions. [2019-10-07 15:09:45,822 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 772 transitions. Word has length 146 [2019-10-07 15:09:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:45,824 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 772 transitions. [2019-10-07 15:09:45,824 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 772 transitions. [2019-10-07 15:09:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2019-10-07 15:09:45,829 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:45,830 INFO L385 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] [2019-10-07 15:09:45,830 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:45,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:45,830 INFO L82 PathProgramCache]: Analyzing trace with hash -92984883, now seen corresponding path program 1 times [2019-10-07 15:09:45,830 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:45,831 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:45,831 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:45,831 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:46,366 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:46,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:46,368 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:46,368 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-07 15:09:46,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 15:09:46,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 15:09:46,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-07 15:09:46,370 INFO L87 Difference]: Start difference. First operand 601 states and 772 transitions. Second operand 14 states. [2019-10-07 15:09:50,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:50,073 INFO L93 Difference]: Finished difference Result 1384 states and 1755 transitions. [2019-10-07 15:09:50,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-07 15:09:50,074 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 257 [2019-10-07 15:09:50,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:50,081 INFO L225 Difference]: With dead ends: 1384 [2019-10-07 15:09:50,081 INFO L226 Difference]: Without dead ends: 1120 [2019-10-07 15:09:50,083 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-07 15:09:50,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2019-10-07 15:09:50,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2019-10-07 15:09:50,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-10-07 15:09:50,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1438 transitions. [2019-10-07 15:09:50,140 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1438 transitions. Word has length 257 [2019-10-07 15:09:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:50,141 INFO L462 AbstractCegarLoop]: Abstraction has 1109 states and 1438 transitions. [2019-10-07 15:09:50,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 15:09:50,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1438 transitions. [2019-10-07 15:09:50,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-07 15:09:50,148 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:50,148 INFO L385 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] [2019-10-07 15:09:50,149 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:50,149 INFO L82 PathProgramCache]: Analyzing trace with hash -278346228, now seen corresponding path program 1 times [2019-10-07 15:09:50,149 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:50,150 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:50,150 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:50,150 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:50,427 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:50,428 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:50,428 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:50,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:50,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:50,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:50,436 INFO L87 Difference]: Start difference. First operand 1109 states and 1438 transitions. Second operand 3 states. [2019-10-07 15:09:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:50,520 INFO L93 Difference]: Finished difference Result 2458 states and 3331 transitions. [2019-10-07 15:09:50,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:50,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-07 15:09:50,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:50,533 INFO L225 Difference]: With dead ends: 2458 [2019-10-07 15:09:50,533 INFO L226 Difference]: Without dead ends: 1407 [2019-10-07 15:09:50,544 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:50,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-07 15:09:50,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1405. [2019-10-07 15:09:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1405 states. [2019-10-07 15:09:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1946 transitions. [2019-10-07 15:09:50,659 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1946 transitions. Word has length 273 [2019-10-07 15:09:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:50,659 INFO L462 AbstractCegarLoop]: Abstraction has 1405 states and 1946 transitions. [2019-10-07 15:09:50,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1946 transitions. [2019-10-07 15:09:50,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-07 15:09:50,668 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:50,668 INFO L385 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] [2019-10-07 15:09:50,668 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:50,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:50,669 INFO L82 PathProgramCache]: Analyzing trace with hash 176555926, now seen corresponding path program 1 times [2019-10-07 15:09:50,669 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:50,669 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:50,669 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:50,670 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:50,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:50,864 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:50,864 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:50,864 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:50,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:50,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:50,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:50,866 INFO L87 Difference]: Start difference. First operand 1405 states and 1946 transitions. Second operand 3 states. [2019-10-07 15:09:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:50,952 INFO L93 Difference]: Finished difference Result 3322 states and 4815 transitions. [2019-10-07 15:09:50,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:50,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-10-07 15:09:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:50,964 INFO L225 Difference]: With dead ends: 3322 [2019-10-07 15:09:50,964 INFO L226 Difference]: Without dead ends: 1975 [2019-10-07 15:09:50,969 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:50,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2019-10-07 15:09:51,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1973. [2019-10-07 15:09:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1973 states. [2019-10-07 15:09:51,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1973 states to 1973 states and 2914 transitions. [2019-10-07 15:09:51,142 INFO L78 Accepts]: Start accepts. Automaton has 1973 states and 2914 transitions. Word has length 274 [2019-10-07 15:09:51,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:51,142 INFO L462 AbstractCegarLoop]: Abstraction has 1973 states and 2914 transitions. [2019-10-07 15:09:51,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1973 states and 2914 transitions. [2019-10-07 15:09:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-07 15:09:51,153 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:51,154 INFO L385 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] [2019-10-07 15:09:51,154 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:51,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:51,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1586240276, now seen corresponding path program 1 times [2019-10-07 15:09:51,155 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:51,155 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:51,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:51,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:51,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:51,348 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:51,349 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:51,349 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:51,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:51,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:51,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:51,351 INFO L87 Difference]: Start difference. First operand 1973 states and 2914 transitions. Second operand 3 states. [2019-10-07 15:09:51,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:51,502 INFO L93 Difference]: Finished difference Result 4978 states and 7639 transitions. [2019-10-07 15:09:51,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:51,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 275 [2019-10-07 15:09:51,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:51,524 INFO L225 Difference]: With dead ends: 4978 [2019-10-07 15:09:51,524 INFO L226 Difference]: Without dead ends: 3063 [2019-10-07 15:09:51,534 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2019-10-07 15:09:51,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 3061. [2019-10-07 15:09:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3061 states. [2019-10-07 15:09:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4754 transitions. [2019-10-07 15:09:51,721 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4754 transitions. Word has length 275 [2019-10-07 15:09:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:51,722 INFO L462 AbstractCegarLoop]: Abstraction has 3061 states and 4754 transitions. [2019-10-07 15:09:51,722 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4754 transitions. [2019-10-07 15:09:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-10-07 15:09:51,748 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:51,749 INFO L385 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] [2019-10-07 15:09:51,749 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:51,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:51,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1325756234, now seen corresponding path program 1 times [2019-10-07 15:09:51,750 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:51,750 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:51,750 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:51,750 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:52,052 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:52,053 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:52,053 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:52,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:52,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:52,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:52,054 INFO L87 Difference]: Start difference. First operand 3061 states and 4754 transitions. Second operand 3 states. [2019-10-07 15:09:52,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:52,252 INFO L93 Difference]: Finished difference Result 8274 states and 13191 transitions. [2019-10-07 15:09:52,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:52,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-10-07 15:09:52,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:52,287 INFO L225 Difference]: With dead ends: 8274 [2019-10-07 15:09:52,287 INFO L226 Difference]: Without dead ends: 5271 [2019-10-07 15:09:52,300 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2019-10-07 15:09:52,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5269. [2019-10-07 15:09:52,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5269 states. [2019-10-07 15:09:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5269 states to 5269 states and 8434 transitions. [2019-10-07 15:09:52,587 INFO L78 Accepts]: Start accepts. Automaton has 5269 states and 8434 transitions. Word has length 276 [2019-10-07 15:09:52,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:52,587 INFO L462 AbstractCegarLoop]: Abstraction has 5269 states and 8434 transitions. [2019-10-07 15:09:52,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:52,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5269 states and 8434 transitions. [2019-10-07 15:09:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-07 15:09:52,619 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:52,619 INFO L385 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] [2019-10-07 15:09:52,619 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:52,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:52,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1177865268, now seen corresponding path program 1 times [2019-10-07 15:09:52,620 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:52,620 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:52,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:52,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:52,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:52,863 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:52,863 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:52,863 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:09:52,864 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:09:52,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:09:52,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:09:52,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:52,865 INFO L87 Difference]: Start difference. First operand 5269 states and 8434 transitions. Second operand 3 states. [2019-10-07 15:09:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:09:53,192 INFO L93 Difference]: Finished difference Result 14578 states and 23719 transitions. [2019-10-07 15:09:53,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:09:53,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-10-07 15:09:53,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:09:53,263 INFO L225 Difference]: With dead ends: 14578 [2019-10-07 15:09:53,264 INFO L226 Difference]: Without dead ends: 9367 [2019-10-07 15:09:53,286 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:09:53,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2019-10-07 15:09:53,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2019-10-07 15:09:53,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2019-10-07 15:09:53,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 15218 transitions. [2019-10-07 15:09:53,796 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 15218 transitions. Word has length 277 [2019-10-07 15:09:53,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:09:53,797 INFO L462 AbstractCegarLoop]: Abstraction has 9365 states and 15218 transitions. [2019-10-07 15:09:53,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:09:53,797 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 15218 transitions. [2019-10-07 15:09:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-10-07 15:09:53,856 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:09:53,856 INFO L385 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] [2019-10-07 15:09:53,856 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:09:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:09:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash 373203796, now seen corresponding path program 1 times [2019-10-07 15:09:53,857 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:09:53,857 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:53,858 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:53,858 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:09:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:09:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:54,706 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:09:54,706 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 15:09:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:09:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:09:55,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 15:09:55,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 15:09:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 15:09:55,887 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 15:09:56,729 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 15:09:57,098 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-07 15:09:57,099 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 15:09:57,128 INFO L162 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-10-07 15:09:57,128 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 15:09:57,135 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 15:09:57,141 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 15:09:57,141 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:11:36,075 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 734 [2019-10-07 15:11:41,381 WARN L191 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 348 DAG size of output: 283 [2019-10-07 15:11:41,745 WARN L191 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 779 [2019-10-07 15:11:42,031 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 779 [2019-10-07 15:11:42,277 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 779 [2019-10-07 15:11:42,454 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:11:43,167 WARN L191 SmtUtils]: Spent 710.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:43,884 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:44,566 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:44,717 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:11:45,416 WARN L191 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:46,672 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1087 DAG size of output: 1085 [2019-10-07 15:11:47,349 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:47,492 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:11:48,146 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:48,802 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:49,465 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:49,608 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:11:50,255 WARN L191 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 1085 [2019-10-07 15:11:50,281 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 586 for LOIs [2019-10-07 15:11:50,643 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 696 [2019-10-07 15:11:50,763 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 696 [2019-10-07 15:11:50,900 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 462 [2019-10-07 15:11:51,388 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1002 [2019-10-07 15:11:51,390 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1143 for LOIs [2019-10-07 15:11:52,024 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:11:52,669 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:11:52,934 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:11:54,000 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:11:54,661 WARN L191 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:11:55,311 WARN L191 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:11:55,727 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:11:56,780 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:11:57,471 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:11:58,117 WARN L191 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:11:58,446 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:11:59,513 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:00,524 WARN L191 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 1351 DAG size of output: 1143 [2019-10-07 15:12:01,164 WARN L191 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:01,437 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:02,483 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:03,126 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:03,764 WARN L191 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:04,084 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:05,137 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:05,767 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:06,409 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:06,670 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:07,714 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:08,342 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:08,971 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:09,229 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:10,281 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:10,916 WARN L191 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:11,545 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:11,799 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:12,846 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:13,476 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:14,110 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:14,364 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:15,421 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:16,050 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:16,682 WARN L191 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:16,937 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:17,975 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:18,612 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:19,243 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:19,497 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:20,546 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:21,175 WARN L191 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:21,817 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:22,073 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:23,117 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:23,747 WARN L191 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:24,380 WARN L191 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 1143 [2019-10-07 15:12:24,635 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:25,683 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:26,824 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:27,872 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:28,134 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:29,182 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:31,119 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:12:32,169 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:32,434 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:33,489 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:34,537 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:35,591 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:35,846 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:12:36,893 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:37,979 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:39,030 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:39,292 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:12:40,352 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:42,251 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:43,309 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:43,576 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:12:44,629 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:45,694 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:46,751 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:47,010 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:12:48,059 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:49,917 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:12:50,975 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:12:51,241 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:12:52,294 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:53,346 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:54,399 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:12:54,667 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:12:55,730 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1355 [2019-10-07 15:12:57,662 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:12:58,707 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:12:58,981 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:00,030 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:01,965 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:13:03,003 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:03,331 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:04,385 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:05,429 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:06,480 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:06,734 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:07,782 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:09,730 WARN L191 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:13:10,780 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:11,046 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:12,092 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:13,998 WARN L191 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 1351 DAG size of output: 1349 [2019-10-07 15:13:15,053 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:15,321 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:16,373 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:17,419 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:18,469 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:18,724 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 660 [2019-10-07 15:13:19,766 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1349 [2019-10-07 15:13:20,858 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:21,926 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:22,192 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:23,260 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:25,073 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:13:26,132 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:13:26,398 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:27,459 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:29,246 WARN L191 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:13:30,306 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:13:30,570 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:31,632 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:33,441 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 1355 DAG size of output: 1351 [2019-10-07 15:13:34,506 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1351 [2019-10-07 15:13:34,771 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:35,834 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:37,758 WARN L191 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1357 DAG size of output: 1353 [2019-10-07 15:13:38,813 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1353 [2019-10-07 15:13:39,078 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 663 [2019-10-07 15:13:40,143 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1355 [2019-10-07 15:13:40,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:13:40,419 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:13:40,426 INFO L168 Benchmark]: Toolchain (without parser) took 243578.84 ms. Allocated memory was 144.2 MB in the beginning and 1.9 GB in the end (delta: 1.7 GB). Free memory was 97.8 MB in the beginning and 180.9 MB in the end (delta: -83.1 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 15:13:40,426 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:13:40,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1096.81 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 97.4 MB in the beginning and 130.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:40,428 INFO L168 Benchmark]: Boogie Preprocessor took 232.22 ms. Allocated memory is still 202.4 MB. Free memory was 130.7 MB in the beginning and 121.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:40,432 INFO L168 Benchmark]: RCFGBuilder took 5112.41 ms. Allocated memory was 202.4 MB in the beginning and 302.0 MB in the end (delta: 99.6 MB). Free memory was 121.4 MB in the beginning and 84.0 MB in the end (delta: 37.4 MB). Peak memory consumption was 137.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:13:40,432 INFO L168 Benchmark]: TraceAbstraction took 237132.43 ms. Allocated memory was 302.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 84.0 MB in the beginning and 180.9 MB in the end (delta: -96.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 15:13:40,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1096.81 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 97.4 MB in the beginning and 130.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 232.22 ms. Allocated memory is still 202.4 MB. Free memory was 130.7 MB in the beginning and 121.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5112.41 ms. Allocated memory was 202.4 MB in the beginning and 302.0 MB in the end (delta: 99.6 MB). Free memory was 121.4 MB in the beginning and 84.0 MB in the end (delta: 37.4 MB). Peak memory consumption was 137.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237132.43 ms. Allocated memory was 302.0 MB in the beginning and 1.9 GB in the end (delta: 1.6 GB). Free memory was 84.0 MB in the beginning and 180.9 MB in the end (delta: -96.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...