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_spec11_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:06:55,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:06:55,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:06:55,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:06:55,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:06:55,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:06:55,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:06:55,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:06:55,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:06:55,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:06:55,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:06:55,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:06:55,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:06:55,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:06:55,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:06:55,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:06:55,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:06:55,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:06:55,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:06:55,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:06:55,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:06:55,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:06:55,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:06:55,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:06:55,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:06:55,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:06:55,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:06:55,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:06:55,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:06:55,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:06:55,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:06:55,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:06:55,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:06:55,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:06:55,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:06:55,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:06:55,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:06:55,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:06:55,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:06:55,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:06:55,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:06:55,266 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 [2019-10-13 23:06:55,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:06:55,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:06:55,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:06:55,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:06:55,283 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:06:55,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:06:55,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:06:55,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:06:55,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:06:55,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:06:55,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:06:55,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:06:55,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:06:55,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:06:55,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:06:55,285 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:06:55,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:06:55,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:06:55,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:06:55,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:06:55,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:06:55,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:06:55,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:06:55,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:06:55,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:06:55,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:06:55,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:06:55,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:06:55,288 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 [2019-10-13 23:06:55,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:06:55,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:06:55,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:06:55,596 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:06:55,597 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:06:55,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c [2019-10-13 23:06:55,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823e0f21d/3b7618b708694dc48093a13e452d5327/FLAG0408852ea [2019-10-13 23:06:56,347 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:06:56,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c [2019-10-13 23:06:56,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823e0f21d/3b7618b708694dc48093a13e452d5327/FLAG0408852ea [2019-10-13 23:06:56,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823e0f21d/3b7618b708694dc48093a13e452d5327 [2019-10-13 23:06:56,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:06:56,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:06:56,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:56,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:06:56,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:06:56,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:56" (1/1) ... [2019-10-13 23:06:56,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:56, skipping insertion in model container [2019-10-13 23:06:56,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:56" (1/1) ... [2019-10-13 23:06:56,580 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:06:56,674 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:06:57,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:57,495 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:06:57,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:57,762 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:06:57,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57 WrapperNode [2019-10-13 23:06:57,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:57,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:06:57,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:06:57,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:06:57,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:57,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:57,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:57,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:57,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:57,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:57,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (1/1) ... [2019-10-13 23:06:58,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:06:58,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:06:58,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:06:58,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:06:58,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (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 [2019-10-13 23:06:58,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:06:58,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:06:58,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:58,072 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:06:58,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:06:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:06:58,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:06:58,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:06:58,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:06:58,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:06:58,075 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:06:58,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:06:58,076 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:06:58,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:06:58,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:06:58,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:06:58,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:06:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:06:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:06:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:06:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:06:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:06:58,081 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:06:58,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:06:58,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:06:58,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:06:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:06:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:06:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:06:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:06:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:06:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:06:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:06:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:06:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:06:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:06:58,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:58,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:06:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:06:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:06:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:06:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:06:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:06:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:06:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:06:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:06:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:06:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:06:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:06:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:06:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:06:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:06:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:06:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:06:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:06:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:06:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:06:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:06:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:06:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:06:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:06:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:06:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:06:58,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:06:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:06:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:06:58,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:06:58,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:06:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:06:58,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:06:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:06:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:06:58,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:06:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:06:58,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:06:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:06:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:06:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:06:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 23:06:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:06:58,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:06:58,098 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:06:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:06:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:06:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:06:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:06:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:06:58,099 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:06:58,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:06:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:06:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:06:58,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:06:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:06:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:06:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:06:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:06:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:06:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:06:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:06:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:06:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:06:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:06:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:06:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:06:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:06:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:06:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:06:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:06:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:06:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:06:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:06:58,110 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:06:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:06:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:06:58,111 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:06:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:06:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:06:58,112 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:06:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:06:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:06:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:06:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:06:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:06:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:06:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:06:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:06:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:06:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:06:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:06:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:06:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:06:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:06:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:06:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:06:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:06:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:06:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:06:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:06:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:06:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:06:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:06:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:06:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:06:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:06:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:06:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:06:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:06:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:06:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:06:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:06:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:06:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:06:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:06:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:06:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 23:06:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:06:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:06:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:06:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:06:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:06:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:06:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:06:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:06:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:06:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:06:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:06:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:06:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:06:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:06:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:06:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:06:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:06:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:06:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:06:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:06:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:06:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:06:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:06:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:06:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:06:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:06:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:07:02,630 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:07:02,630 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:07:02,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:02 BoogieIcfgContainer [2019-10-13 23:07:02,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:07:02,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:07:02,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:07:02,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:07:02,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:06:56" (1/3) ... [2019-10-13 23:07:02,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425379ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:02, skipping insertion in model container [2019-10-13 23:07:02,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:57" (2/3) ... [2019-10-13 23:07:02,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425379ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:02, skipping insertion in model container [2019-10-13 23:07:02,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:02" (3/3) ... [2019-10-13 23:07:02,641 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product33.cil.c [2019-10-13 23:07:02,651 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:07:02,660 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:07:02,672 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:07:02,701 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:07:02,701 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:07:02,702 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:07:02,702 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:07:02,702 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:07:02,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:07:02,702 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:07:02,702 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:07:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states. [2019-10-13 23:07:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 23:07:02,752 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:02,753 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:07:02,756 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:02,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:02,762 INFO L82 PathProgramCache]: Analyzing trace with hash -693498140, now seen corresponding path program 1 times [2019-10-13 23:07:02,772 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:02,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548768821] [2019-10-13 23:07:02,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:02,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:02,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:07:03,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548768821] [2019-10-13 23:07:03,562 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:03,562 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:07:03,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511771418] [2019-10-13 23:07:03,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:07:03,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:03,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:07:03,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:03,588 INFO L87 Difference]: Start difference. First operand 431 states. Second operand 2 states. [2019-10-13 23:07:03,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:03,683 INFO L93 Difference]: Finished difference Result 663 states and 788 transitions. [2019-10-13 23:07:03,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:07:03,685 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-13 23:07:03,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:03,714 INFO L225 Difference]: With dead ends: 663 [2019-10-13 23:07:03,714 INFO L226 Difference]: Without dead ends: 410 [2019-10-13 23:07:03,721 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 [2019-10-13 23:07:03,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-10-13 23:07:03,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2019-10-13 23:07:03,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-10-13 23:07:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 483 transitions. [2019-10-13 23:07:03,844 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 483 transitions. Word has length 176 [2019-10-13 23:07:03,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:03,846 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 483 transitions. [2019-10-13 23:07:03,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:07:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 483 transitions. [2019-10-13 23:07:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-13 23:07:03,854 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:03,854 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:07:03,855 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1613279630, now seen corresponding path program 1 times [2019-10-13 23:07:03,855 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:03,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959119790] [2019-10-13 23:07:03,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:03,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:03,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:07:04,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959119790] [2019-10-13 23:07:04,151 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:04,151 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:04,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562143178] [2019-10-13 23:07:04,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:04,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:04,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:04,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:04,156 INFO L87 Difference]: Start difference. First operand 410 states and 483 transitions. Second operand 3 states. [2019-10-13 23:07:04,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:04,232 INFO L93 Difference]: Finished difference Result 648 states and 754 transitions. [2019-10-13 23:07:04,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:04,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-13 23:07:04,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:04,243 INFO L225 Difference]: With dead ends: 648 [2019-10-13 23:07:04,243 INFO L226 Difference]: Without dead ends: 412 [2019-10-13 23:07:04,246 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 [2019-10-13 23:07:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-13 23:07:04,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2019-10-13 23:07:04,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-13 23:07:04,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 485 transitions. [2019-10-13 23:07:04,278 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 485 transitions. Word has length 177 [2019-10-13 23:07:04,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:04,278 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 485 transitions. [2019-10-13 23:07:04,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:04,278 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 485 transitions. [2019-10-13 23:07:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:07:04,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:04,283 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:07:04,283 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:04,284 INFO L82 PathProgramCache]: Analyzing trace with hash 566832214, now seen corresponding path program 1 times [2019-10-13 23:07:04,284 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:04,284 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16682943] [2019-10-13 23:07:04,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:04,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:04,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:04,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:07:04,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16682943] [2019-10-13 23:07:04,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:04,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:04,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918641383] [2019-10-13 23:07:04,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:04,529 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:04,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:04,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:04,529 INFO L87 Difference]: Start difference. First operand 412 states and 485 transitions. Second operand 3 states. [2019-10-13 23:07:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:04,587 INFO L93 Difference]: Finished difference Result 808 states and 980 transitions. [2019-10-13 23:07:04,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:04,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-13 23:07:04,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:04,595 INFO L225 Difference]: With dead ends: 808 [2019-10-13 23:07:04,595 INFO L226 Difference]: Without dead ends: 454 [2019-10-13 23:07:04,597 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 [2019-10-13 23:07:04,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-10-13 23:07:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 453. [2019-10-13 23:07:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-13 23:07:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 556 transitions. [2019-10-13 23:07:04,647 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 556 transitions. Word has length 189 [2019-10-13 23:07:04,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:04,648 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 556 transitions. [2019-10-13 23:07:04,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 556 transitions. [2019-10-13 23:07:04,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 23:07:04,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:04,657 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:07:04,657 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:04,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:04,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1167203054, now seen corresponding path program 1 times [2019-10-13 23:07:04,658 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:04,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099260489] [2019-10-13 23:07:04,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:04,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:04,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:07:05,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099260489] [2019-10-13 23:07:05,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745311445] [2019-10-13 23:07:05,418 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 [2019-10-13 23:07:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:06,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 2931 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:07:06,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:07:06,218 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:07:06,218 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:07:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-13 23:07:06,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1278029742] [2019-10-13 23:07:06,538 INFO L162 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-10-13 23:07:06,538 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:07:06,554 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:07:06,563 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:07:06,564 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs