/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_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:24:41,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:24:41,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:24:41,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:24:41,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:24:41,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:24:41,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:24:41,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:24:41,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:24:41,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:24:41,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:24:41,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:24:41,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:24:41,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:24:41,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:24:42,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:24:42,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:24:42,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:24:42,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:24:42,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:24:42,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:24:42,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:24:42,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:24:42,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:24:42,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:24:42,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:24:42,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:24:42,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:24:42,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:24:42,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:24:42,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:24:42,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:24:42,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:24:42,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:24:42,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:24:42,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:24:42,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:24:42,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:24:42,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:24:42,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:24:42,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:24:42,040 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 04:24:42,077 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:24:42,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:24:42,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:24:42,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:24:42,082 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:24:42,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:24:42,083 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:24:42,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:24:42,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:24:42,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:24:42,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:24:42,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:24:42,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:24:42,087 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:24:42,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:24:42,087 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:24:42,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:24:42,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:24:42,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:24:42,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:24:42,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:24:42,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:24:42,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:24:42,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:24:42,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:24:42,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:24:42,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:24:42,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:24:42,090 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 04:24:42,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:24:42,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:24:42,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:24:42,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:24:42,427 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:24:42,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-11-07 04:24:42,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43d7562c/52f4d6c556b84b859130ac47bcc751a5/FLAGef2e6949a [2019-11-07 04:24:43,115 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:24:43,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-11-07 04:24:43,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43d7562c/52f4d6c556b84b859130ac47bcc751a5/FLAGef2e6949a [2019-11-07 04:24:43,337 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c43d7562c/52f4d6c556b84b859130ac47bcc751a5 [2019-11-07 04:24:43,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:24:43,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:24:43,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:24:43,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:24:43,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:24:43,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407003ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:43, skipping insertion in model container [2019-11-07 04:24:43,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:24:43" (1/1) ... [2019-11-07 04:24:43,366 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:24:43,428 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:24:44,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:24:44,181 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:24:44,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:24:44,431 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:24:44,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44 WrapperNode [2019-11-07 04:24:44,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:24:44,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:24:44,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:24:44,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:24:44,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (1/1) ... [2019-11-07 04:24:44,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:24:44,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:24:44,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:24:44,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:24:44,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (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 04:24:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:24:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:24:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:24:44,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:24:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 04:24:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:24:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:24:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:24:44,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:24:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:24:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:24:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:24:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:24:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:24:44,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:24:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:24:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:24:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 04:24:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:24:44,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:24:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:24:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:24:44,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:24:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:24:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:24:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:24:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:24:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:24:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:24:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:24:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:24:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:24:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:24:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:24:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:24:44,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:24:44,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:24:44,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:24:44,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:24:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:24:44,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:24:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:24:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:24:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:24:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:24:44,750 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:24:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:24:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:24:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:24:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:24:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:24:44,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:24:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:24:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:24:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:24:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:24:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:24:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:24:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:24:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:24:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:24:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:24:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:24:44,757 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:24:44,758 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:24:44,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:24:44,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:24:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:24:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:24:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:24:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:24:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:24:44,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:24:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:24:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:24:44,762 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:24:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:24:44,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:24:44,763 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:24:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:24:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:24:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:24:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:24:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:24:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:24:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:24:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:24:44,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:24:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:24:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:24:44,769 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:24:44,770 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:24:44,773 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:24:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:24:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:24:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 04:24:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:24:44,774 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:24:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:24:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:24:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:24:44,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:24:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:24:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:24:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:24:44,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:24:44,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:24:44,784 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:24:44,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:24:44,786 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:24:44,787 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:24:44,788 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:24:44,789 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:24:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:24:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:24:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:24:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:24:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:24:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:24:44,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:24:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:24:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:24:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:24:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:24:44,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:24:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:24:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:24:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:24:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:24:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:24:44,793 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:24:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:24:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:24:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:24:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:24:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:24:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:24:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:24:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:24:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:24:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:24:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:24:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:24:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:24:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:24:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:24:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:24:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:24:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:24:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:24:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:24:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:24:49,056 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:24:49,056 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:24:49,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:24:49 BoogieIcfgContainer [2019-11-07 04:24:49,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:24:49,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:24:49,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:24:49,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:24:49,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:24:43" (1/3) ... [2019-11-07 04:24:49,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374b4b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:24:49, skipping insertion in model container [2019-11-07 04:24:49,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:24:44" (2/3) ... [2019-11-07 04:24:49,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374b4b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:24:49, skipping insertion in model container [2019-11-07 04:24:49,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:24:49" (3/3) ... [2019-11-07 04:24:49,068 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-11-07 04:24:49,078 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:24:49,088 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:24:49,100 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:24:49,131 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:24:49,131 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:24:49,132 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:24:49,132 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:24:49,132 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:24:49,132 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:24:49,132 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:24:49,132 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:24:49,163 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states. [2019-11-07 04:24:49,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:24:49,182 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:49,183 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:49,186 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:49,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:49,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1428529733, now seen corresponding path program 1 times [2019-11-07 04:24:49,255 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:49,256 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662110318] [2019-11-07 04:24:49,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:49,947 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:49,947 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662110318] [2019-11-07 04:24:49,948 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:49,949 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:24:49,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951544506] [2019-11-07 04:24:49,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:24:49,956 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:49,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:24:49,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:24:49,977 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 2 states. [2019-11-07 04:24:50,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:50,081 INFO L93 Difference]: Finished difference Result 661 states and 784 transitions. [2019-11-07 04:24:50,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:24:50,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-11-07 04:24:50,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:50,123 INFO L225 Difference]: With dead ends: 661 [2019-11-07 04:24:50,123 INFO L226 Difference]: Without dead ends: 409 [2019-11-07 04:24:50,134 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 04:24:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-11-07 04:24:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-11-07 04:24:50,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-11-07 04:24:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 482 transitions. [2019-11-07 04:24:50,289 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 482 transitions. Word has length 145 [2019-11-07 04:24:50,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:50,292 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 482 transitions. [2019-11-07 04:24:50,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:24:50,292 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 482 transitions. [2019-11-07 04:24:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-11-07 04:24:50,306 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:50,306 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:50,307 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:50,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1941277862, now seen corresponding path program 1 times [2019-11-07 04:24:50,307 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:50,308 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468197460] [2019-11-07 04:24:50,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:50,585 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468197460] [2019-11-07 04:24:50,585 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:50,585 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:50,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691136344] [2019-11-07 04:24:50,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:50,588 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:50,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:50,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:50,589 INFO L87 Difference]: Start difference. First operand 409 states and 482 transitions. Second operand 3 states. [2019-11-07 04:24:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:50,630 INFO L93 Difference]: Finished difference Result 646 states and 752 transitions. [2019-11-07 04:24:50,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:50,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-11-07 04:24:50,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:50,634 INFO L225 Difference]: With dead ends: 646 [2019-11-07 04:24:50,634 INFO L226 Difference]: Without dead ends: 411 [2019-11-07 04:24:50,636 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 04:24:50,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2019-11-07 04:24:50,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2019-11-07 04:24:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-11-07 04:24:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 484 transitions. [2019-11-07 04:24:50,663 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 484 transitions. Word has length 146 [2019-11-07 04:24:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:50,667 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 484 transitions. [2019-11-07 04:24:50,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 484 transitions. [2019-11-07 04:24:50,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-07 04:24:50,675 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:50,675 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:50,676 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:50,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2009493726, now seen corresponding path program 1 times [2019-11-07 04:24:50,677 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:50,677 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814460658] [2019-11-07 04:24:50,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:51,166 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:24:51,166 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814460658] [2019-11-07 04:24:51,167 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:51,167 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:24:51,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146129493] [2019-11-07 04:24:51,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:24:51,169 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:51,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:24:51,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:24:51,170 INFO L87 Difference]: Start difference. First operand 411 states and 484 transitions. Second operand 3 states. [2019-11-07 04:24:51,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:24:51,228 INFO L93 Difference]: Finished difference Result 806 states and 978 transitions. [2019-11-07 04:24:51,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:24:51,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-11-07 04:24:51,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:24:51,236 INFO L225 Difference]: With dead ends: 806 [2019-11-07 04:24:51,237 INFO L226 Difference]: Without dead ends: 453 [2019-11-07 04:24:51,239 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 04:24:51,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-11-07 04:24:51,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2019-11-07 04:24:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-11-07 04:24:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 555 transitions. [2019-11-07 04:24:51,273 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 555 transitions. Word has length 158 [2019-11-07 04:24:51,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:24:51,273 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 555 transitions. [2019-11-07 04:24:51,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:24:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 555 transitions. [2019-11-07 04:24:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-07 04:24:51,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:24:51,278 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:24:51,279 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:24:51,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:24:51,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1491507317, now seen corresponding path program 1 times [2019-11-07 04:24:51,279 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:24:51,280 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197897673] [2019-11-07 04:24:51,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:24:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:24:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:24:52,078 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197897673] [2019-11-07 04:24:52,078 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:24:52,078 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-11-07 04:24:52,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620401316] [2019-11-07 04:24:52,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 04:24:52,079 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:24:52,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 04:24:52,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-11-07 04:24:52,081 INFO L87 Difference]: Start difference. First operand 452 states and 555 transitions. Second operand 28 states. [2019-11-07 04:25:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:01,929 INFO L93 Difference]: Finished difference Result 978 states and 1192 transitions. [2019-11-07 04:25:01,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-11-07 04:25:01,930 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 159 [2019-11-07 04:25:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:01,936 INFO L225 Difference]: With dead ends: 978 [2019-11-07 04:25:01,936 INFO L226 Difference]: Without dead ends: 721 [2019-11-07 04:25:01,938 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-11-07 04:25:01,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-11-07 04:25:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 709. [2019-11-07 04:25:01,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-11-07 04:25:01,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 861 transitions. [2019-11-07 04:25:01,976 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 861 transitions. Word has length 159 [2019-11-07 04:25:01,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:01,977 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 861 transitions. [2019-11-07 04:25:01,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-07 04:25:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 861 transitions. [2019-11-07 04:25:01,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 04:25:01,980 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:01,981 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:25:01,981 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:01,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:01,981 INFO L82 PathProgramCache]: Analyzing trace with hash -682911635, now seen corresponding path program 1 times [2019-11-07 04:25:01,982 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:01,982 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444306777] [2019-11-07 04:25:01,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:02,296 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444306777] [2019-11-07 04:25:02,296 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:25:02,296 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:25:02,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102281530] [2019-11-07 04:25:02,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:25:02,298 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:25:02,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:25:02,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:25:02,299 INFO L87 Difference]: Start difference. First operand 709 states and 861 transitions. Second operand 10 states. [2019-11-07 04:25:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:02,381 INFO L93 Difference]: Finished difference Result 718 states and 872 transitions. [2019-11-07 04:25:02,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:25:02,382 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2019-11-07 04:25:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:02,393 INFO L225 Difference]: With dead ends: 718 [2019-11-07 04:25:02,393 INFO L226 Difference]: Without dead ends: 713 [2019-11-07 04:25:02,394 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:25:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-11-07 04:25:02,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2019-11-07 04:25:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-11-07 04:25:02,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 865 transitions. [2019-11-07 04:25:02,443 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 865 transitions. Word has length 163 [2019-11-07 04:25:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:02,446 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 865 transitions. [2019-11-07 04:25:02,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:25:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 865 transitions. [2019-11-07 04:25:02,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-11-07 04:25:02,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:02,451 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:25:02,452 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:02,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:02,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1922706522, now seen corresponding path program 1 times [2019-11-07 04:25:02,453 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:02,453 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097049786] [2019-11-07 04:25:02,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:02,900 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097049786] [2019-11-07 04:25:02,901 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:25:02,901 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:25:02,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829816562] [2019-11-07 04:25:02,902 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:25:02,903 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:25:02,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:25:02,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:25:02,903 INFO L87 Difference]: Start difference. First operand 713 states and 865 transitions. Second operand 14 states. [2019-11-07 04:25:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:06,414 INFO L93 Difference]: Finished difference Result 1543 states and 1848 transitions. [2019-11-07 04:25:06,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:25:06,416 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2019-11-07 04:25:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:06,425 INFO L225 Difference]: With dead ends: 1543 [2019-11-07 04:25:06,426 INFO L226 Difference]: Without dead ends: 1309 [2019-11-07 04:25:06,427 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:25:06,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2019-11-07 04:25:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1264. [2019-11-07 04:25:06,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2019-11-07 04:25:06,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1518 transitions. [2019-11-07 04:25:06,525 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1518 transitions. Word has length 165 [2019-11-07 04:25:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:06,526 INFO L462 AbstractCegarLoop]: Abstraction has 1264 states and 1518 transitions. [2019-11-07 04:25:06,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:25:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1518 transitions. [2019-11-07 04:25:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-11-07 04:25:06,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:06,530 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:25:06,530 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:06,531 INFO L82 PathProgramCache]: Analyzing trace with hash 621858291, now seen corresponding path program 1 times [2019-11-07 04:25:06,531 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:06,531 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961208046] [2019-11-07 04:25:06,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:06,668 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:25:06,668 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961208046] [2019-11-07 04:25:06,668 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:25:06,668 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:25:06,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54410065] [2019-11-07 04:25:06,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:25:06,669 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:25:06,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:25:06,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:25:06,670 INFO L87 Difference]: Start difference. First operand 1264 states and 1518 transitions. Second operand 3 states. [2019-11-07 04:25:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:25:06,741 INFO L93 Difference]: Finished difference Result 2582 states and 3169 transitions. [2019-11-07 04:25:06,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:25:06,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-11-07 04:25:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:25:06,749 INFO L225 Difference]: With dead ends: 2582 [2019-11-07 04:25:06,750 INFO L226 Difference]: Without dead ends: 1376 [2019-11-07 04:25:06,753 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 04:25:06,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-11-07 04:25:06,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1374. [2019-11-07 04:25:06,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1374 states. [2019-11-07 04:25:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1709 transitions. [2019-11-07 04:25:06,830 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1709 transitions. Word has length 180 [2019-11-07 04:25:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:25:06,830 INFO L462 AbstractCegarLoop]: Abstraction has 1374 states and 1709 transitions. [2019-11-07 04:25:06,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:25:06,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1709 transitions. [2019-11-07 04:25:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-11-07 04:25:06,834 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:25:06,835 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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 04:25:06,835 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:25:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:25:06,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1182325413, now seen corresponding path program 1 times [2019-11-07 04:25:06,836 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:25:06,836 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863013322] [2019-11-07 04:25:06,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:25:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:07,355 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-07 04:25:07,355 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863013322] [2019-11-07 04:25:07,356 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329574466] [2019-11-07 04:25:07,356 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 04:25:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:25:07,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:25:07,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:25:08,091 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:08,091 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:25:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:25:08,354 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [550123172] [2019-11-07 04:25:08,387 INFO L159 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-11-07 04:25:08,387 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:25:08,394 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:25:08,401 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:25:08,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs