/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_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:20:05,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:20:05,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:20:05,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:20:05,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:20:05,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:20:05,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:20:05,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:20:05,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:20:05,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:20:05,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:20:05,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:20:05,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:20:05,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:20:05,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:20:05,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:20:05,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:20:05,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:20:05,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:20:05,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:20:05,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:20:05,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:20:05,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:20:05,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:20:05,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:20:05,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:20:05,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:20:05,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:20:05,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:20:05,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:20:05,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:20:05,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:20:05,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:20:05,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:20:05,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:20:05,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:20:05,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:20:05,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:20:05,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:20:05,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:20:05,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:20:05,170 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 04:20:05,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:20:05,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:20:05,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:20:05,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:20:05,186 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:20:05,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:20:05,187 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:20:05,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:20:05,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:20:05,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:20:05,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:20:05,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:20:05,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:20:05,188 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:20:05,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:20:05,188 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:20:05,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:20:05,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:20:05,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:20:05,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:20:05,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:20:05,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:20:05,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:20:05,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:20:05,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:20:05,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:20:05,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:20:05,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:20:05,191 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 04:20:05,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:20:05,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:20:05,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:20:05,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:20:05,511 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:20:05,512 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-11-07 04:20:05,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4cea21c9/c7ccb9d136d345d786a09e8cf1bdc558/FLAGd26e1de2c [2019-11-07 04:20:06,183 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:20:06,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product19.cil.c [2019-11-07 04:20:06,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4cea21c9/c7ccb9d136d345d786a09e8cf1bdc558/FLAGd26e1de2c [2019-11-07 04:20:06,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4cea21c9/c7ccb9d136d345d786a09e8cf1bdc558 [2019-11-07 04:20:06,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:20:06,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:20:06,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:06,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:20:06,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:20:06,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:06" (1/1) ... [2019-11-07 04:20:06,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6406803b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:06, skipping insertion in model container [2019-11-07 04:20:06,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:06" (1/1) ... [2019-11-07 04:20:06,443 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:20:06,550 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:20:07,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:07,348 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:20:07,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:07,555 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:20:07,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07 WrapperNode [2019-11-07 04:20:07,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:07,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:20:07,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:20:07,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:20:07,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (1/1) ... [2019-11-07 04:20:07,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:20:07,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:20:07,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:20:07,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:20:07,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (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 04:20:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:20:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:20:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:20:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:20:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:20:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:20:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:20:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:20:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:20:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:20:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:20:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:20:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:20:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:20:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:20:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:20:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:20:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:20:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:20:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:20:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:20:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:20:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:20:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:20:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:20:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:20:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:20:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:20:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:20:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:20:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:20:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:20:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:20:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:20:07,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:20:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:20:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:20:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:20:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:20:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:20:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:20:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:20:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:20:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:20:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:20:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:20:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:20:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:20:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:20:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:20:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:20:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:20:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:20:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:20:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:20:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:20:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:20:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:20:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:20:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:20:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:20:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:20:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:20:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:20:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:20:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:20:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:20:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:20:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:20:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:20:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:20:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:20:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:20:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:20:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:20:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:20:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:20:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:20:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:20:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:20:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:20:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:20:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:20:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:20:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:20:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:20:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:20:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:20:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:20:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:20:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:20:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:20:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:20:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:20:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:20:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:20:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:20:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:20:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:20:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:20:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:20:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:20:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:20:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:20:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:20:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:20:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:20:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:20:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:20:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:20:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:20:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:20:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:20:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:20:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:20:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:20:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:20:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:20:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:20:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:20:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:20:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:20:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:20:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:20:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:20:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:20:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:20:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:20:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:20:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:20:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:20:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:20:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:20:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:20:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:20:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:20:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:20:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:20:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:20:07,883 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:20:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:20:07,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:20:07,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:20:07,887 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:20:07,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:20:07,889 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:20:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:20:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:20:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:20:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:20:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:20:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:20:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:20:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:20:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:20:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:20:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:20:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:20:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:20:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:20:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:20:12,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:20:12,424 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:20:12,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:12 BoogieIcfgContainer [2019-11-07 04:20:12,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:20:12,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:20:12,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:20:12,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:20:12,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:20:06" (1/3) ... [2019-11-07 04:20:12,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e0f5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:12, skipping insertion in model container [2019-11-07 04:20:12,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:07" (2/3) ... [2019-11-07 04:20:12,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e0f5cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:12, skipping insertion in model container [2019-11-07 04:20:12,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:12" (3/3) ... [2019-11-07 04:20:12,433 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product19.cil.c [2019-11-07 04:20:12,443 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:20:12,452 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:20:12,465 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:20:12,494 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:20:12,494 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:20:12,494 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:20:12,495 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:20:12,495 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:20:12,495 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:20:12,495 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:20:12,495 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:20:12,525 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states. [2019-11-07 04:20:12,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-11-07 04:20:12,543 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:12,544 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:12,547 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:12,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1238212688, now seen corresponding path program 1 times [2019-11-07 04:20:12,563 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:12,564 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367735673] [2019-11-07 04:20:12,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:13,299 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:13,300 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367735673] [2019-11-07 04:20:13,301 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:13,301 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:20:13,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736626009] [2019-11-07 04:20:13,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:20:13,308 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:13,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:20:13,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:20:13,327 INFO L87 Difference]: Start difference. First operand 370 states. Second operand 2 states. [2019-11-07 04:20:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:13,397 INFO L93 Difference]: Finished difference Result 548 states and 647 transitions. [2019-11-07 04:20:13,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:20:13,398 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-11-07 04:20:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:13,425 INFO L225 Difference]: With dead ends: 548 [2019-11-07 04:20:13,425 INFO L226 Difference]: Without dead ends: 349 [2019-11-07 04:20:13,430 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 04:20:13,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-07 04:20:13,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-07 04:20:13,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-07 04:20:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 410 transitions. [2019-11-07 04:20:13,509 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 410 transitions. Word has length 134 [2019-11-07 04:20:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:13,512 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 410 transitions. [2019-11-07 04:20:13,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:20:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 410 transitions. [2019-11-07 04:20:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 04:20:13,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:13,518 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:13,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:13,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:13,519 INFO L82 PathProgramCache]: Analyzing trace with hash 944842773, now seen corresponding path program 1 times [2019-11-07 04:20:13,519 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:13,519 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924506687] [2019-11-07 04:20:13,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:13,692 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924506687] [2019-11-07 04:20:13,693 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:13,693 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:13,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733693608] [2019-11-07 04:20:13,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:13,695 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:13,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:13,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:13,696 INFO L87 Difference]: Start difference. First operand 349 states and 410 transitions. Second operand 3 states. [2019-11-07 04:20:13,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:13,739 INFO L93 Difference]: Finished difference Result 533 states and 615 transitions. [2019-11-07 04:20:13,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:13,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-11-07 04:20:13,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:13,745 INFO L225 Difference]: With dead ends: 533 [2019-11-07 04:20:13,745 INFO L226 Difference]: Without dead ends: 351 [2019-11-07 04:20:13,747 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 04:20:13,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2019-11-07 04:20:13,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2019-11-07 04:20:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2019-11-07 04:20:13,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 412 transitions. [2019-11-07 04:20:13,782 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 412 transitions. Word has length 135 [2019-11-07 04:20:13,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:13,783 INFO L462 AbstractCegarLoop]: Abstraction has 351 states and 412 transitions. [2019-11-07 04:20:13,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 412 transitions. [2019-11-07 04:20:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 04:20:13,789 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:13,790 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:13,790 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:13,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2105343418, now seen corresponding path program 1 times [2019-11-07 04:20:13,792 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:13,792 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602205133] [2019-11-07 04:20:13,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:14,053 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602205133] [2019-11-07 04:20:14,053 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:14,054 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:14,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352976619] [2019-11-07 04:20:14,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:14,056 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:14,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:14,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:14,057 INFO L87 Difference]: Start difference. First operand 351 states and 412 transitions. Second operand 3 states. [2019-11-07 04:20:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:14,116 INFO L93 Difference]: Finished difference Result 684 states and 831 transitions. [2019-11-07 04:20:14,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:14,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-11-07 04:20:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:14,124 INFO L225 Difference]: With dead ends: 684 [2019-11-07 04:20:14,125 INFO L226 Difference]: Without dead ends: 391 [2019-11-07 04:20:14,130 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 04:20:14,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-11-07 04:20:14,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2019-11-07 04:20:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-11-07 04:20:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2019-11-07 04:20:14,178 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 140 [2019-11-07 04:20:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:14,180 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2019-11-07 04:20:14,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:14,180 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2019-11-07 04:20:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-11-07 04:20:14,186 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:14,187 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:14,187 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:14,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:14,187 INFO L82 PathProgramCache]: Analyzing trace with hash -488220095, now seen corresponding path program 1 times [2019-11-07 04:20:14,188 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:14,188 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68525148] [2019-11-07 04:20:14,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:20:14,813 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68525148] [2019-11-07 04:20:14,814 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:14,814 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-11-07 04:20:14,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216602465] [2019-11-07 04:20:14,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-07 04:20:14,817 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:14,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-07 04:20:14,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2019-11-07 04:20:14,818 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand 23 states. [2019-11-07 04:20:25,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:25,140 INFO L93 Difference]: Finished difference Result 1005 states and 1173 transitions. [2019-11-07 04:20:25,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-11-07 04:20:25,141 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 141 [2019-11-07 04:20:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:25,149 INFO L225 Difference]: With dead ends: 1005 [2019-11-07 04:20:25,149 INFO L226 Difference]: Without dead ends: 737 [2019-11-07 04:20:25,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2019-11-07 04:20:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2019-11-07 04:20:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 727. [2019-11-07 04:20:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2019-11-07 04:20:25,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 849 transitions. [2019-11-07 04:20:25,200 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 849 transitions. Word has length 141 [2019-11-07 04:20:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:25,201 INFO L462 AbstractCegarLoop]: Abstraction has 727 states and 849 transitions. [2019-11-07 04:20:25,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-07 04:20:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 849 transitions. [2019-11-07 04:20:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-11-07 04:20:25,205 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:25,205 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:25,205 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:25,206 INFO L82 PathProgramCache]: Analyzing trace with hash 35846808, now seen corresponding path program 1 times [2019-11-07 04:20:25,206 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:25,206 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230524126] [2019-11-07 04:20:25,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:25,367 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230524126] [2019-11-07 04:20:25,368 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948806098] [2019-11-07 04:20:25,368 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 04:20:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:26,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 2541 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:20:26,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:20:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:26,144 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:20:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:20:26,365 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [925516513] [2019-11-07 04:20:26,398 INFO L159 IcfgInterpreter]: Started Sifa with 136 locations of interest [2019-11-07 04:20:26,398 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:20:26,406 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:20:26,413 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:20:26,414 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs