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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:48,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:48,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:48,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:48,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:48,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:48,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:49,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:49,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:49,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:49,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:49,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:49,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:49,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:49,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:49,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:49,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:49,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:49,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:49,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:49,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:49,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:49,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:49,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:49,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:49,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:49,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:49,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:49,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:49,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:49,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:49,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:49,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:49,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:49,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:49,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:49,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:49,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:49,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:49,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:49,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:49,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:17:49,099 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:49,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:49,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:49,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:49,106 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:49,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:49,107 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:49,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:49,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:49,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:49,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:49,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:49,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:49,109 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:49,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:49,109 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:49,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:49,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:49,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:49,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:49,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:49,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:49,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:49,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:49,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:49,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:49,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:49,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:49,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:17:49,401 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:49,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:49,425 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:49,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:49,426 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:49,427 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-10-15 03:17:49,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5364ba6e0/dce5fef45e894c04a73be9d01afcab65/FLAGef0ca5e0a [2019-10-15 03:17:50,134 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:50,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-10-15 03:17:50,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5364ba6e0/dce5fef45e894c04a73be9d01afcab65/FLAGef0ca5e0a [2019-10-15 03:17:50,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5364ba6e0/dce5fef45e894c04a73be9d01afcab65 [2019-10-15 03:17:50,364 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:50,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:50,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:50,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:50,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:50,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50, skipping insertion in model container [2019-10-15 03:17:50,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,383 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:50,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:51,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:51,178 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:51,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:51,468 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:51,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51 WrapperNode [2019-10-15 03:17:51,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:51,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:51,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:51,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:51,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... [2019-10-15 03:17:51,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:51,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:51,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:51,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:51,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:51,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:51,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:51,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:51,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:51,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:51,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:51,750 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:51,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:51,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:51,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:51,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:51,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:51,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:17:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 03:17:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:51,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:51,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:17:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:17:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:17:51,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:51,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:51,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:51,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:17:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:51,763 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:51,764 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:51,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:51,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:51,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:51,768 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:51,769 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:51,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:51,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:51,772 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:51,773 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:51,774 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:51,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:51,776 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:51,777 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:17:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:56,197 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:56,198 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:56,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:56 BoogieIcfgContainer [2019-10-15 03:17:56,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:56,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:56,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:56,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:56,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:50" (1/3) ... [2019-10-15 03:17:56,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a04bc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:56, skipping insertion in model container [2019-10-15 03:17:56,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:51" (2/3) ... [2019-10-15 03:17:56,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a04bc13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:56, skipping insertion in model container [2019-10-15 03:17:56,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:56" (3/3) ... [2019-10-15 03:17:56,209 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2019-10-15 03:17:56,219 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:56,229 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:56,242 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:56,272 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:56,272 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:56,272 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:56,272 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:56,272 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:56,273 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:56,273 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:56,273 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:56,301 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states. [2019-10-15 03:17:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 03:17:56,317 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:56,319 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:56,321 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:56,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:56,327 INFO L82 PathProgramCache]: Analyzing trace with hash 322371803, now seen corresponding path program 1 times [2019-10-15 03:17:56,337 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:56,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498304201] [2019-10-15 03:17:56,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:56,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:56,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:57,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498304201] [2019-10-15 03:17:57,042 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:57,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:57,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769471958] [2019-10-15 03:17:57,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:57,051 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:57,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:57,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:57,069 INFO L87 Difference]: Start difference. First operand 344 states. Second operand 2 states. [2019-10-15 03:17:57,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:57,149 INFO L93 Difference]: Finished difference Result 454 states and 535 transitions. [2019-10-15 03:17:57,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:57,150 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-10-15 03:17:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:57,168 INFO L225 Difference]: With dead ends: 454 [2019-10-15 03:17:57,169 INFO L226 Difference]: Without dead ends: 302 [2019-10-15 03:17:57,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:57,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-10-15 03:17:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-10-15 03:17:57,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-15 03:17:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 356 transitions. [2019-10-15 03:17:57,261 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 356 transitions. Word has length 114 [2019-10-15 03:17:57,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:57,263 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 356 transitions. [2019-10-15 03:17:57,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 356 transitions. [2019-10-15 03:17:57,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-15 03:17:57,268 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:57,268 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:57,269 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:57,269 INFO L82 PathProgramCache]: Analyzing trace with hash -2050185194, now seen corresponding path program 1 times [2019-10-15 03:17:57,270 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:57,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469344933] [2019-10-15 03:17:57,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:57,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469344933] [2019-10-15 03:17:57,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:57,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:57,495 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103832315] [2019-10-15 03:17:57,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:57,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:57,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:57,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,500 INFO L87 Difference]: Start difference. First operand 302 states and 356 transitions. Second operand 3 states. [2019-10-15 03:17:57,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:57,580 INFO L93 Difference]: Finished difference Result 439 states and 507 transitions. [2019-10-15 03:17:57,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:57,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-15 03:17:57,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:57,593 INFO L225 Difference]: With dead ends: 439 [2019-10-15 03:17:57,593 INFO L226 Difference]: Without dead ends: 304 [2019-10-15 03:17:57,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-10-15 03:17:57,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2019-10-15 03:17:57,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-10-15 03:17:57,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 358 transitions. [2019-10-15 03:17:57,648 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 358 transitions. Word has length 115 [2019-10-15 03:17:57,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:57,651 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 358 transitions. [2019-10-15 03:17:57,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:57,651 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 358 transitions. [2019-10-15 03:17:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-15 03:17:57,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:57,660 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:57,660 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:57,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:57,661 INFO L82 PathProgramCache]: Analyzing trace with hash 372523246, now seen corresponding path program 1 times [2019-10-15 03:17:57,661 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:57,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456467741] [2019-10-15 03:17:57,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,662 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:57,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456467741] [2019-10-15 03:17:57,927 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:57,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:57,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67273693] [2019-10-15 03:17:57,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:57,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:57,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:57,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,931 INFO L87 Difference]: Start difference. First operand 304 states and 358 transitions. Second operand 3 states. [2019-10-15 03:17:57,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:57,971 INFO L93 Difference]: Finished difference Result 590 states and 723 transitions. [2019-10-15 03:17:57,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:57,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-10-15 03:17:57,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:57,978 INFO L225 Difference]: With dead ends: 590 [2019-10-15 03:17:57,978 INFO L226 Difference]: Without dead ends: 344 [2019-10-15 03:17:57,982 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-10-15 03:17:58,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 343. [2019-10-15 03:17:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 03:17:58,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 426 transitions. [2019-10-15 03:17:58,021 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 426 transitions. Word has length 124 [2019-10-15 03:17:58,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:58,022 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 426 transitions. [2019-10-15 03:17:58,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:58,022 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 426 transitions. [2019-10-15 03:17:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 03:17:58,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:58,025 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:58,025 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:58,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:58,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1482738148, now seen corresponding path program 1 times [2019-10-15 03:17:58,026 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:58,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219950570] [2019-10-15 03:17:58,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:58,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219950570] [2019-10-15 03:17:58,257 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:58,259 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:58,259 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334006061] [2019-10-15 03:17:58,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:58,261 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:58,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:58,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,262 INFO L87 Difference]: Start difference. First operand 343 states and 426 transitions. Second operand 3 states. [2019-10-15 03:17:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:58,315 INFO L93 Difference]: Finished difference Result 704 states and 922 transitions. [2019-10-15 03:17:58,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:58,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-10-15 03:17:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:58,326 INFO L225 Difference]: With dead ends: 704 [2019-10-15 03:17:58,326 INFO L226 Difference]: Without dead ends: 419 [2019-10-15 03:17:58,327 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-10-15 03:17:58,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-10-15 03:17:58,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-15 03:17:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 556 transitions. [2019-10-15 03:17:58,353 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 556 transitions. Word has length 125 [2019-10-15 03:17:58,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:58,354 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 556 transitions. [2019-10-15 03:17:58,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:58,354 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 556 transitions. [2019-10-15 03:17:58,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-15 03:17:58,358 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:58,358 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:58,359 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:58,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:58,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1205503246, now seen corresponding path program 1 times [2019-10-15 03:17:58,360 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:58,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479393476] [2019-10-15 03:17:58,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:58,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479393476] [2019-10-15 03:17:58,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:58,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:58,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270891503] [2019-10-15 03:17:58,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:58,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:58,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:58,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,565 INFO L87 Difference]: Start difference. First operand 418 states and 556 transitions. Second operand 3 states. [2019-10-15 03:17:58,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:58,611 INFO L93 Difference]: Finished difference Result 923 states and 1302 transitions. [2019-10-15 03:17:58,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:58,612 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-15 03:17:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:58,620 INFO L225 Difference]: With dead ends: 923 [2019-10-15 03:17:58,620 INFO L226 Difference]: Without dead ends: 563 [2019-10-15 03:17:58,622 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-15 03:17:58,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 562. [2019-10-15 03:17:58,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-15 03:17:58,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 804 transitions. [2019-10-15 03:17:58,682 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 804 transitions. Word has length 126 [2019-10-15 03:17:58,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:58,683 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 804 transitions. [2019-10-15 03:17:58,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:58,684 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 804 transitions. [2019-10-15 03:17:58,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 03:17:58,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:58,688 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:58,689 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:58,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:58,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1234299425, now seen corresponding path program 1 times [2019-10-15 03:17:58,689 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:58,689 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947893991] [2019-10-15 03:17:58,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:58,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947893991] [2019-10-15 03:17:58,929 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:58,929 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:58,929 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796835152] [2019-10-15 03:17:58,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:58,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:58,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:58,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,931 INFO L87 Difference]: Start difference. First operand 562 states and 804 transitions. Second operand 3 states. [2019-10-15 03:17:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:58,982 INFO L93 Difference]: Finished difference Result 730 states and 993 transitions. [2019-10-15 03:17:58,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:58,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-15 03:17:58,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:58,987 INFO L225 Difference]: With dead ends: 730 [2019-10-15 03:17:58,987 INFO L226 Difference]: Without dead ends: 596 [2019-10-15 03:17:58,988 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-15 03:17:59,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-10-15 03:17:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-10-15 03:17:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 836 transitions. [2019-10-15 03:17:59,020 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 836 transitions. Word has length 128 [2019-10-15 03:17:59,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:59,021 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 836 transitions. [2019-10-15 03:17:59,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:59,021 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 836 transitions. [2019-10-15 03:17:59,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 03:17:59,026 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:59,026 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:59,027 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:59,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:59,027 INFO L82 PathProgramCache]: Analyzing trace with hash -168053957, now seen corresponding path program 1 times [2019-10-15 03:17:59,027 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:59,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936403232] [2019-10-15 03:17:59,028 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:59,028 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:59,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:59,464 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 03:17:59,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936403232] [2019-10-15 03:17:59,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:59,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:17:59,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933372721] [2019-10-15 03:17:59,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:17:59,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:59,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:17:59,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:17:59,467 INFO L87 Difference]: Start difference. First operand 596 states and 836 transitions. Second operand 11 states. [2019-10-15 03:18:01,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:01,822 INFO L93 Difference]: Finished difference Result 670 states and 906 transitions. [2019-10-15 03:18:01,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:18:01,823 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-15 03:18:01,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:01,827 INFO L225 Difference]: With dead ends: 670 [2019-10-15 03:18:01,827 INFO L226 Difference]: Without dead ends: 602 [2019-10-15 03:18:01,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:18:01,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-10-15 03:18:01,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-10-15 03:18:01,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-15 03:18:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 837 transitions. [2019-10-15 03:18:01,858 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 837 transitions. Word has length 213 [2019-10-15 03:18:01,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:01,859 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 837 transitions. [2019-10-15 03:18:01,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:18:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 837 transitions. [2019-10-15 03:18:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 03:18:01,864 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:01,865 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:01,865 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:01,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:01,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1650230684, now seen corresponding path program 1 times [2019-10-15 03:18:01,866 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:01,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597699415] [2019-10-15 03:18:01,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:01,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:01,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-15 03:18:02,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597699415] [2019-10-15 03:18:02,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421090909] [2019-10-15 03:18:02,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:18:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:03,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:18:03,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:18:03,399 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 03:18:03,399 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:18:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 03:18:03,992 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206803103] [2019-10-15 03:18:04,042 INFO L162 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-10-15 03:18:04,043 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:18:04,050 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:18:04,058 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:18:04,059 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs