/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:58,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:58,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:58,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:58,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:58,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:58,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:58,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:58,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:58,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:58,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:58,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:58,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:58,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:58,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:58,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:58,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:58,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:58,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:58,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:58,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:58,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:58,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:58,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:58,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:58,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:58,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:58,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:58,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:58,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:58,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:58,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:58,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:58,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:58,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:58,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:58,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:58,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:58,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:58,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:58,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:58,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:26:58,362 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:58,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:58,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:58,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:58,367 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:58,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:58,367 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:58,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:58,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:58,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:58,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:58,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:58,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:58,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:58,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:58,370 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:58,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:58,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:58,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:58,371 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:58,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:58,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:58,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:58,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:58,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:58,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:58,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:58,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:58,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:26:58,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:26:58,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:26:58,681 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:26:58,682 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:26:58,683 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:26:58,684 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-11-07 04:26:58,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9562d9e6a/99c6baad6f5d439e877b05da5f201d21/FLAG357a9bb60 [2019-11-07 04:26:59,398 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:26:59,399 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-11-07 04:26:59,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9562d9e6a/99c6baad6f5d439e877b05da5f201d21/FLAG357a9bb60 [2019-11-07 04:26:59,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9562d9e6a/99c6baad6f5d439e877b05da5f201d21 [2019-11-07 04:26:59,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:26:59,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:26:59,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:59,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:26:59,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:26:59,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:59" (1/1) ... [2019-11-07 04:26:59,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68075150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:59, skipping insertion in model container [2019-11-07 04:26:59,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:59" (1/1) ... [2019-11-07 04:26:59,634 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:26:59,711 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:27:00,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:27:00,493 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:27:00,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:27:00,708 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:27:00,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00 WrapperNode [2019-11-07 04:27:00,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:27:00,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:27:00,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:27:00,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:27:00,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... [2019-11-07 04:27:00,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:27:00,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:27:00,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:27:00,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:27:00,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:27:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:27:00,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:27:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:27:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:27:00,999 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:27:01,000 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:27:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:27:01,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:27:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:27:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:27:01,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:27:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:27:01,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:27:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:27:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:27:01,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:27:01,006 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:27:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:27:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:27:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:27:01,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:27:01,008 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:27:01,008 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:27:01,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:27:01,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:27:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:27:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:27:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:27:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:27:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:27:01,009 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:27:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:27:01,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:27:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:27:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:27:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:27:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:27:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:27:01,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:27:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:27:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:27:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:27:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:27:01,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:27:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:27:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:27:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:27:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:27:01,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:27:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:27:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:27:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:27:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:27:01,014 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:27:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:27:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:27:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:27:01,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:27:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:27:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:27:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:27:01,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:27:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:27:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:27:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:27:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:27:01,017 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:27:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:27:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:27:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:27:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:27:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:27:01,018 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:27:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:27:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:27:01,020 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:27:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:27:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-11-07 04:27:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:27:01,021 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:27:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:27:01,022 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:27:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:27:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:27:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:27:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:27:01,023 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:27:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:27:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:27:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:27:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:27:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:27:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:27:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:27:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:27:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:27:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:27:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:27:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:27:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:27:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:27:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:27:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:27:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:27:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:27:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:27:01,028 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:27:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:27:01,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:27:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:27:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:27:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:27:01,029 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:27:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:27:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:27:01,030 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:27:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:27:01,031 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:27:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:27:01,032 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:27:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:27:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:27:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:27:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:27:01,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:27:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:27:01,034 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:27:01,035 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:27:01,038 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:27:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:27:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:27:01,039 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:27:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:27:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:27:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:27:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:27:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:27:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:27:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:27:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:27:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:27:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:27:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:27:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:27:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:27:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:27:01,052 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:27:01,053 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:27:01,054 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:27:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:27:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:27:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:27:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:27:01,055 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:27:01,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:27:01,057 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:27:01,058 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:27:01,059 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-11-07 04:27:01,060 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:27:01,061 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:27:01,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:27:05,789 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:27:05,790 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:27:05,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:05 BoogieIcfgContainer [2019-11-07 04:27:05,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:27:05,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:27:05,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:27:05,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:27:05,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:26:59" (1/3) ... [2019-11-07 04:27:05,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c767f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:05, skipping insertion in model container [2019-11-07 04:27:05,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:27:00" (2/3) ... [2019-11-07 04:27:05,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c767f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:05, skipping insertion in model container [2019-11-07 04:27:05,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:05" (3/3) ... [2019-11-07 04:27:05,799 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product20.cil.c [2019-11-07 04:27:05,864 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:27:05,875 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:27:05,887 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:27:05,930 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:27:05,930 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:27:05,930 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:27:05,931 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:27:05,931 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:27:05,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:27:05,931 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:27:05,931 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:27:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states. [2019-11-07 04:27:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-11-07 04:27:05,980 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:05,981 INFO L410 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] [2019-11-07 04:27:05,984 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:05,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:05,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1053414408, now seen corresponding path program 1 times [2019-11-07 04:27:06,003 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:06,003 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196791640] [2019-11-07 04:27:06,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:06,636 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196791640] [2019-11-07 04:27:06,637 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:06,637 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:27:06,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367987161] [2019-11-07 04:27:06,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:27:06,644 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:06,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:27:06,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:27:06,663 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 2 states. [2019-11-07 04:27:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:06,727 INFO L93 Difference]: Finished difference Result 518 states and 617 transitions. [2019-11-07 04:27:06,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:27:06,728 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-11-07 04:27:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:06,747 INFO L225 Difference]: With dead ends: 518 [2019-11-07 04:27:06,747 INFO L226 Difference]: Without dead ends: 341 [2019-11-07 04:27:06,753 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:27:06,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-11-07 04:27:06,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2019-11-07 04:27:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-11-07 04:27:06,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 403 transitions. [2019-11-07 04:27:06,834 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 403 transitions. Word has length 121 [2019-11-07 04:27:06,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:06,837 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 403 transitions. [2019-11-07 04:27:06,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:27:06,837 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 403 transitions. [2019-11-07 04:27:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-07 04:27:06,849 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:06,849 INFO L410 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] [2019-11-07 04:27:06,849 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:06,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:06,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1628387505, now seen corresponding path program 1 times [2019-11-07 04:27:06,850 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:06,850 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091432131] [2019-11-07 04:27:06,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:07,082 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091432131] [2019-11-07 04:27:07,082 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:07,083 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:07,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935345664] [2019-11-07 04:27:07,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:07,085 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:07,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:07,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,086 INFO L87 Difference]: Start difference. First operand 341 states and 403 transitions. Second operand 3 states. [2019-11-07 04:27:07,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,163 INFO L93 Difference]: Finished difference Result 503 states and 586 transitions. [2019-11-07 04:27:07,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:07,164 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-11-07 04:27:07,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,174 INFO L225 Difference]: With dead ends: 503 [2019-11-07 04:27:07,174 INFO L226 Difference]: Without dead ends: 343 [2019-11-07 04:27:07,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-11-07 04:27:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-11-07 04:27:07,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-11-07 04:27:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 405 transitions. [2019-11-07 04:27:07,231 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 405 transitions. Word has length 122 [2019-11-07 04:27:07,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,234 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 405 transitions. [2019-11-07 04:27:07,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:07,235 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 405 transitions. [2019-11-07 04:27:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-07 04:27:07,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,238 INFO L410 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] [2019-11-07 04:27:07,238 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,239 INFO L82 PathProgramCache]: Analyzing trace with hash 471512363, now seen corresponding path program 1 times [2019-11-07 04:27:07,240 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,240 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883548255] [2019-11-07 04:27:07,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:07,538 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883548255] [2019-11-07 04:27:07,538 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:07,538 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:07,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949066123] [2019-11-07 04:27:07,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:07,541 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:07,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:07,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,541 INFO L87 Difference]: Start difference. First operand 343 states and 405 transitions. Second operand 3 states. [2019-11-07 04:27:07,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,586 INFO L93 Difference]: Finished difference Result 670 states and 820 transitions. [2019-11-07 04:27:07,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:07,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-11-07 04:27:07,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,594 INFO L225 Difference]: With dead ends: 670 [2019-11-07 04:27:07,594 INFO L226 Difference]: Without dead ends: 385 [2019-11-07 04:27:07,596 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-11-07 04:27:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2019-11-07 04:27:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-11-07 04:27:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 476 transitions. [2019-11-07 04:27:07,634 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 476 transitions. Word has length 131 [2019-11-07 04:27:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,635 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 476 transitions. [2019-11-07 04:27:07,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 476 transitions. [2019-11-07 04:27:07,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:27:07,642 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,642 INFO L410 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] [2019-11-07 04:27:07,642 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,643 INFO L82 PathProgramCache]: Analyzing trace with hash 2129396188, now seen corresponding path program 1 times [2019-11-07 04:27:07,643 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,643 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486154956] [2019-11-07 04:27:07,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:07,802 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:07,802 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486154956] [2019-11-07 04:27:07,802 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:07,803 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:07,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905189429] [2019-11-07 04:27:07,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:07,804 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:07,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:07,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,804 INFO L87 Difference]: Start difference. First operand 384 states and 476 transitions. Second operand 3 states. [2019-11-07 04:27:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:07,830 INFO L93 Difference]: Finished difference Result 790 states and 1028 transitions. [2019-11-07 04:27:07,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:07,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-11-07 04:27:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:07,834 INFO L225 Difference]: With dead ends: 790 [2019-11-07 04:27:07,834 INFO L226 Difference]: Without dead ends: 464 [2019-11-07 04:27:07,835 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-11-07 04:27:07,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-11-07 04:27:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-11-07 04:27:07,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 612 transitions. [2019-11-07 04:27:07,855 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 612 transitions. Word has length 132 [2019-11-07 04:27:07,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:07,856 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 612 transitions. [2019-11-07 04:27:07,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:07,856 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 612 transitions. [2019-11-07 04:27:07,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 04:27:07,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:07,859 INFO L410 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] [2019-11-07 04:27:07,859 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:07,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:07,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1585933844, now seen corresponding path program 1 times [2019-11-07 04:27:07,860 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:07,860 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590226463] [2019-11-07 04:27:07,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:27:08,054 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590226463] [2019-11-07 04:27:08,054 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,055 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:08,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110286731] [2019-11-07 04:27:08,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:08,056 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:08,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:08,056 INFO L87 Difference]: Start difference. First operand 463 states and 612 transitions. Second operand 3 states. [2019-11-07 04:27:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:08,084 INFO L93 Difference]: Finished difference Result 675 states and 859 transitions. [2019-11-07 04:27:08,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:08,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-11-07 04:27:08,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:08,088 INFO L225 Difference]: With dead ends: 675 [2019-11-07 04:27:08,089 INFO L226 Difference]: Without dead ends: 527 [2019-11-07 04:27:08,090 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:08,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-11-07 04:27:08,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 526. [2019-11-07 04:27:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-11-07 04:27:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 685 transitions. [2019-11-07 04:27:08,118 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 685 transitions. Word has length 135 [2019-11-07 04:27:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:08,119 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 685 transitions. [2019-11-07 04:27:08,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 685 transitions. [2019-11-07 04:27:08,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-11-07 04:27:08,123 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:08,124 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:08,124 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:08,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:08,125 INFO L82 PathProgramCache]: Analyzing trace with hash -529388687, now seen corresponding path program 1 times [2019-11-07 04:27:08,125 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:08,125 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987960474] [2019-11-07 04:27:08,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:08,769 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987960474] [2019-11-07 04:27:08,769 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:08,769 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:27:08,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110832826] [2019-11-07 04:27:08,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:27:08,770 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:08,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:27:08,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:27:08,771 INFO L87 Difference]: Start difference. First operand 526 states and 685 transitions. Second operand 12 states. [2019-11-07 04:27:11,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:11,331 INFO L93 Difference]: Finished difference Result 1176 states and 1512 transitions. [2019-11-07 04:27:11,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:27:11,332 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2019-11-07 04:27:11,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:11,339 INFO L225 Difference]: With dead ends: 1176 [2019-11-07 04:27:11,340 INFO L226 Difference]: Without dead ends: 970 [2019-11-07 04:27:11,341 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-11-07 04:27:11,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-11-07 04:27:11,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 959. [2019-11-07 04:27:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2019-11-07 04:27:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1264 transitions. [2019-11-07 04:27:11,405 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1264 transitions. Word has length 227 [2019-11-07 04:27:11,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:11,405 INFO L462 AbstractCegarLoop]: Abstraction has 959 states and 1264 transitions. [2019-11-07 04:27:11,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:27:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1264 transitions. [2019-11-07 04:27:11,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-11-07 04:27:11,412 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:11,413 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:11,413 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:11,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:11,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1327849714, now seen corresponding path program 1 times [2019-11-07 04:27:11,414 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:11,414 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864857271] [2019-11-07 04:27:11,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:11,599 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:11,599 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864857271] [2019-11-07 04:27:11,599 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:11,599 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:11,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589284813] [2019-11-07 04:27:11,600 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:11,601 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:11,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:11,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:11,601 INFO L87 Difference]: Start difference. First operand 959 states and 1264 transitions. Second operand 3 states. [2019-11-07 04:27:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:11,670 INFO L93 Difference]: Finished difference Result 2158 states and 2983 transitions. [2019-11-07 04:27:11,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:11,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-11-07 04:27:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:11,678 INFO L225 Difference]: With dead ends: 2158 [2019-11-07 04:27:11,679 INFO L226 Difference]: Without dead ends: 1257 [2019-11-07 04:27:11,682 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2019-11-07 04:27:11,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2019-11-07 04:27:11,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-11-07 04:27:11,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1772 transitions. [2019-11-07 04:27:11,772 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1772 transitions. Word has length 243 [2019-11-07 04:27:11,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:11,773 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1772 transitions. [2019-11-07 04:27:11,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:11,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1772 transitions. [2019-11-07 04:27:11,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-11-07 04:27:11,783 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:11,784 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 04:27:11,784 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:11,784 INFO L82 PathProgramCache]: Analyzing trace with hash -324152982, now seen corresponding path program 1 times [2019-11-07 04:27:11,785 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:11,785 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404291571] [2019-11-07 04:27:11,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:12,216 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 04:27:12,217 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404291571] [2019-11-07 04:27:12,217 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:12,218 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:27:12,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428393898] [2019-11-07 04:27:12,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:27:12,219 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:12,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:27:12,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:27:12,220 INFO L87 Difference]: Start difference. First operand 1255 states and 1772 transitions. Second operand 11 states. [2019-11-07 04:27:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:15,550 INFO L93 Difference]: Finished difference Result 1808 states and 2403 transitions. [2019-11-07 04:27:15,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:27:15,551 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2019-11-07 04:27:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:15,561 INFO L225 Difference]: With dead ends: 1808 [2019-11-07 04:27:15,561 INFO L226 Difference]: Without dead ends: 1473 [2019-11-07 04:27:15,563 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:27:15,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-11-07 04:27:15,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1462. [2019-11-07 04:27:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2019-11-07 04:27:15,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2010 transitions. [2019-11-07 04:27:15,661 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2010 transitions. Word has length 229 [2019-11-07 04:27:15,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:15,661 INFO L462 AbstractCegarLoop]: Abstraction has 1462 states and 2010 transitions. [2019-11-07 04:27:15,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:27:15,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2010 transitions. [2019-11-07 04:27:15,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-11-07 04:27:15,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:15,671 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:15,671 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:15,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:15,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1127243137, now seen corresponding path program 1 times [2019-11-07 04:27:15,672 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:15,672 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309092291] [2019-11-07 04:27:15,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:15,862 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309092291] [2019-11-07 04:27:15,863 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:15,863 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:15,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221151561] [2019-11-07 04:27:15,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:15,864 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:15,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:15,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:15,865 INFO L87 Difference]: Start difference. First operand 1462 states and 2010 transitions. Second operand 3 states. [2019-11-07 04:27:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:15,991 INFO L93 Difference]: Finished difference Result 3436 states and 4943 transitions. [2019-11-07 04:27:15,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:15,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-11-07 04:27:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:16,009 INFO L225 Difference]: With dead ends: 3436 [2019-11-07 04:27:16,009 INFO L226 Difference]: Without dead ends: 2032 [2019-11-07 04:27:16,017 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2019-11-07 04:27:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2030. [2019-11-07 04:27:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2019-11-07 04:27:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2978 transitions. [2019-11-07 04:27:16,216 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2978 transitions. Word has length 244 [2019-11-07 04:27:16,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:16,217 INFO L462 AbstractCegarLoop]: Abstraction has 2030 states and 2978 transitions. [2019-11-07 04:27:16,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2978 transitions. [2019-11-07 04:27:16,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 04:27:16,228 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:16,229 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:16,229 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:16,229 INFO L82 PathProgramCache]: Analyzing trace with hash 626496206, now seen corresponding path program 1 times [2019-11-07 04:27:16,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:16,230 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760517173] [2019-11-07 04:27:16,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:16,402 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760517173] [2019-11-07 04:27:16,403 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:16,404 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:16,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085323462] [2019-11-07 04:27:16,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:16,405 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:16,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:16,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:16,406 INFO L87 Difference]: Start difference. First operand 2030 states and 2978 transitions. Second operand 3 states. [2019-11-07 04:27:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:16,579 INFO L93 Difference]: Finished difference Result 5092 states and 7767 transitions. [2019-11-07 04:27:16,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:16,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-11-07 04:27:16,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:16,603 INFO L225 Difference]: With dead ends: 5092 [2019-11-07 04:27:16,603 INFO L226 Difference]: Without dead ends: 3120 [2019-11-07 04:27:16,617 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2019-11-07 04:27:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 3118. [2019-11-07 04:27:16,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2019-11-07 04:27:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4818 transitions. [2019-11-07 04:27:16,849 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4818 transitions. Word has length 245 [2019-11-07 04:27:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:16,849 INFO L462 AbstractCegarLoop]: Abstraction has 3118 states and 4818 transitions. [2019-11-07 04:27:16,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4818 transitions. [2019-11-07 04:27:16,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-11-07 04:27:16,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:16,869 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:16,869 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:16,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:16,869 INFO L82 PathProgramCache]: Analyzing trace with hash -847646017, now seen corresponding path program 1 times [2019-11-07 04:27:16,870 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:16,870 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562064126] [2019-11-07 04:27:16,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:17,155 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562064126] [2019-11-07 04:27:17,155 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:17,155 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:17,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054353475] [2019-11-07 04:27:17,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:17,156 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:17,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:17,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:17,157 INFO L87 Difference]: Start difference. First operand 3118 states and 4818 transitions. Second operand 3 states. [2019-11-07 04:27:17,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:17,369 INFO L93 Difference]: Finished difference Result 8388 states and 13319 transitions. [2019-11-07 04:27:17,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:17,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-11-07 04:27:17,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:17,405 INFO L225 Difference]: With dead ends: 8388 [2019-11-07 04:27:17,405 INFO L226 Difference]: Without dead ends: 5328 [2019-11-07 04:27:17,417 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:17,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2019-11-07 04:27:17,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5326. [2019-11-07 04:27:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5326 states. [2019-11-07 04:27:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 8498 transitions. [2019-11-07 04:27:17,849 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 8498 transitions. Word has length 246 [2019-11-07 04:27:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:17,851 INFO L462 AbstractCegarLoop]: Abstraction has 5326 states and 8498 transitions. [2019-11-07 04:27:17,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 8498 transitions. [2019-11-07 04:27:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-11-07 04:27:17,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:17,887 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:17,887 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:17,887 INFO L82 PathProgramCache]: Analyzing trace with hash 975502990, now seen corresponding path program 1 times [2019-11-07 04:27:17,888 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:17,888 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011722424] [2019-11-07 04:27:17,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:18,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011722424] [2019-11-07 04:27:18,090 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:18,090 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:18,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529664670] [2019-11-07 04:27:18,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:18,091 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:18,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:18,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:18,092 INFO L87 Difference]: Start difference. First operand 5326 states and 8498 transitions. Second operand 3 states. [2019-11-07 04:27:18,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:18,541 INFO L93 Difference]: Finished difference Result 14692 states and 23847 transitions. [2019-11-07 04:27:18,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:18,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-11-07 04:27:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:18,607 INFO L225 Difference]: With dead ends: 14692 [2019-11-07 04:27:18,607 INFO L226 Difference]: Without dead ends: 9424 [2019-11-07 04:27:18,629 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:18,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2019-11-07 04:27:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9422. [2019-11-07 04:27:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9422 states. [2019-11-07 04:27:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 15282 transitions. [2019-11-07 04:27:19,223 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 15282 transitions. Word has length 247 [2019-11-07 04:27:19,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:19,224 INFO L462 AbstractCegarLoop]: Abstraction has 9422 states and 15282 transitions. [2019-11-07 04:27:19,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 15282 transitions. [2019-11-07 04:27:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-11-07 04:27:19,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:19,285 INFO L410 BasicCegarLoop]: trace histogram [4, 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] [2019-11-07 04:27:19,285 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:19,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1715967229, now seen corresponding path program 1 times [2019-11-07 04:27:19,286 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:19,286 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444863705] [2019-11-07 04:27:19,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:20,449 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-07 04:27:20,450 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444863705] [2019-11-07 04:27:20,450 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534403381] [2019-11-07 04:27:20,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:27:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:21,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 3448 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:27:21,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:27:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-11-07 04:27:21,382 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:27:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 04:27:21,822 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1390779664] [2019-11-07 04:27:21,862 INFO L159 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-11-07 04:27:21,862 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:27:21,871 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:27:21,879 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:27:21,879 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs