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_spec0_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:06:03,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:06:03,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:06:03,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:06:03,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:06:03,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:06:03,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:06:03,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:06:03,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:06:03,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:06:03,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:06:03,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:06:03,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:06:03,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:06:03,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:06:03,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:06:03,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:06:03,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:06:03,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:06:03,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:06:03,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:06:03,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:06:03,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:06:03,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:06:03,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:06:03,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:06:03,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:06:03,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:06:03,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:06:03,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:06:03,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:06:03,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:06:03,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:06:03,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:06:03,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:06:03,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:06:03,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:06:03,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:06:03,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:06:03,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:06:03,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:06:03,322 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 23:06:03,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:06:03,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:06:03,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:06:03,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:06:03,346 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:06:03,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:06:03,347 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:06:03,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:06:03,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:06:03,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:06:03,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:06:03,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:06:03,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:06:03,349 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:06:03,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:06:03,349 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:06:03,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:06:03,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:06:03,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:06:03,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:06:03,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:06:03,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:06:03,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:06:03,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:06:03,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:06:03,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:06:03,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:06:03,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:06:03,352 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 23:06:03,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:06:03,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:06:03,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:06:03,679 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:06:03,680 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:06:03,680 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c [2019-10-13 23:06:03,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aebde22d0/452de479cbf14d0ebce2aa06b398faf4/FLAGd3000e892 [2019-10-13 23:06:04,421 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:06:04,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c [2019-10-13 23:06:04,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aebde22d0/452de479cbf14d0ebce2aa06b398faf4/FLAGd3000e892 [2019-10-13 23:06:04,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aebde22d0/452de479cbf14d0ebce2aa06b398faf4 [2019-10-13 23:06:04,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:06:04,623 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:06:04,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:04,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:06:04,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:06:04,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:04" (1/1) ... [2019-10-13 23:06:04,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd595e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:04, skipping insertion in model container [2019-10-13 23:06:04,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:06:04" (1/1) ... [2019-10-13 23:06:04,641 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:06:04,719 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:06:05,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:05,578 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:06:05,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:06:05,880 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:06:05,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05 WrapperNode [2019-10-13 23:06:05,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:06:05,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:06:05,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:06:05,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:06:05,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:05,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:05,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:05,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:06,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:06,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:06,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (1/1) ... [2019-10-13 23:06:06,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:06:06,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:06:06,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:06:06,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:06:06,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (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 23:06:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:06:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:06:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:06:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:06:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:06:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:06:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:06:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:06:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:06:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:06:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:06:06,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:06:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:06:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:06:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:06:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:06:06,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:06:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:06:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:06:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:06:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:06:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:06:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:06:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:06:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:06:06,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:06:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:06:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:06:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:06:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:06:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:06:06,186 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:06:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:06:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:06:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:06:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:06:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:06:06,187 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:06:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:06:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:06:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:06:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:06:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:06:06,188 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:06:06,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:06:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:06:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:06:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:06:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:06:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:06:06,190 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:06:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:06:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:06:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:06:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:06:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:06:06,191 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:06:06,192 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:06:06,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:06:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:06:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:06:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:06:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:06:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:06:06,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:06:06,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:06:06,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:06:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:06:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:06:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:06:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:06:06,196 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:06:06,197 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:06:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 23:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:06:06,199 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:06:06,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:06:06,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:06:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:06:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:06:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:06:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:06:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:06:06,202 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:06:06,203 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:06:06,204 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:06:06,205 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:06:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:06:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:06:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:06:06,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:06:06,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:06:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:06:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:06:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:06:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:06:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:06:06,211 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:06:06,212 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:06:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:06:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:06:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:06:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:06:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:06:06,213 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:06:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:06:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:06:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:06:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:06:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:06:06,214 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:06:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:06:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:06:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:06:06,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:06:10,821 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:06:10,822 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:06:10,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:10 BoogieIcfgContainer [2019-10-13 23:06:10,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:06:10,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:06:10,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:06:10,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:06:10,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:06:04" (1/3) ... [2019-10-13 23:06:10,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517ae720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:10, skipping insertion in model container [2019-10-13 23:06:10,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:06:05" (2/3) ... [2019-10-13 23:06:10,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517ae720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:06:10, skipping insertion in model container [2019-10-13 23:06:10,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:06:10" (3/3) ... [2019-10-13 23:06:10,837 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product27.cil.c [2019-10-13 23:06:10,851 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:06:10,863 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:06:10,876 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:06:10,920 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:06:10,920 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:06:10,920 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:06:10,921 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:06:10,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:06:10,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:06:10,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:06:10,930 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:06:10,971 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2019-10-13 23:06:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:06:10,990 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:10,991 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:10,993 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:10,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:11,000 INFO L82 PathProgramCache]: Analyzing trace with hash 273409021, now seen corresponding path program 1 times [2019-10-13 23:06:11,009 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:11,009 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555658222] [2019-10-13 23:06:11,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:11,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:11,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:11,618 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:11,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555658222] [2019-10-13 23:06:11,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:11,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:06:11,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906012802] [2019-10-13 23:06:11,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:06:11,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:11,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:06:11,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:06:11,643 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2019-10-13 23:06:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:11,723 INFO L93 Difference]: Finished difference Result 625 states and 737 transitions. [2019-10-13 23:06:11,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:06:11,724 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 163 [2019-10-13 23:06:11,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:11,748 INFO L225 Difference]: With dead ends: 625 [2019-10-13 23:06:11,749 INFO L226 Difference]: Without dead ends: 398 [2019-10-13 23:06:11,762 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 23:06:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-13 23:06:11,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-10-13 23:06:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-13 23:06:11,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 465 transitions. [2019-10-13 23:06:11,875 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 465 transitions. Word has length 163 [2019-10-13 23:06:11,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:11,877 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 465 transitions. [2019-10-13 23:06:11,877 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:06:11,877 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 465 transitions. [2019-10-13 23:06:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 23:06:11,889 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:11,890 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:11,890 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:11,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash 672108081, now seen corresponding path program 1 times [2019-10-13 23:06:11,891 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:11,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757409403] [2019-10-13 23:06:11,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:11,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:11,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:12,137 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:12,138 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757409403] [2019-10-13 23:06:12,138 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:12,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:12,139 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368520827] [2019-10-13 23:06:12,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:12,144 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:12,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:12,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:12,145 INFO L87 Difference]: Start difference. First operand 398 states and 465 transitions. Second operand 3 states. [2019-10-13 23:06:12,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:12,229 INFO L93 Difference]: Finished difference Result 610 states and 703 transitions. [2019-10-13 23:06:12,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:12,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-10-13 23:06:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:12,310 INFO L225 Difference]: With dead ends: 610 [2019-10-13 23:06:12,310 INFO L226 Difference]: Without dead ends: 400 [2019-10-13 23:06:12,313 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 23:06:12,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-13 23:06:12,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2019-10-13 23:06:12,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2019-10-13 23:06:12,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 467 transitions. [2019-10-13 23:06:12,346 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 467 transitions. Word has length 164 [2019-10-13 23:06:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:12,346 INFO L462 AbstractCegarLoop]: Abstraction has 400 states and 467 transitions. [2019-10-13 23:06:12,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:12,347 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 467 transitions. [2019-10-13 23:06:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 23:06:12,351 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:12,351 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:12,352 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:12,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1239010808, now seen corresponding path program 1 times [2019-10-13 23:06:12,352 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:12,352 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200028791] [2019-10-13 23:06:12,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:12,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:12,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:12,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:12,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200028791] [2019-10-13 23:06:12,614 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:06:12,614 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:06:12,614 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278771232] [2019-10-13 23:06:12,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:06:12,616 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:06:12,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:06:12,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:06:12,617 INFO L87 Difference]: Start difference. First operand 400 states and 467 transitions. Second operand 3 states. [2019-10-13 23:06:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:06:12,680 INFO L93 Difference]: Finished difference Result 786 states and 947 transitions. [2019-10-13 23:06:12,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:06:12,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-10-13 23:06:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:06:12,688 INFO L225 Difference]: With dead ends: 786 [2019-10-13 23:06:12,689 INFO L226 Difference]: Without dead ends: 444 [2019-10-13 23:06:12,691 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 23:06:12,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2019-10-13 23:06:12,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2019-10-13 23:06:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-10-13 23:06:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 541 transitions. [2019-10-13 23:06:12,750 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 541 transitions. Word has length 176 [2019-10-13 23:06:12,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:06:12,751 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 541 transitions. [2019-10-13 23:06:12,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:06:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 541 transitions. [2019-10-13 23:06:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-13 23:06:12,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:06:12,768 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:06:12,768 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:06:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:06:12,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1024021322, now seen corresponding path program 1 times [2019-10-13 23:06:12,769 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:06:12,769 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613186078] [2019-10-13 23:06:12,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:12,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:06:12,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:06:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:06:13,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613186078] [2019-10-13 23:06:13,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782272108] [2019-10-13 23:06:13,170 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 23:06:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:06:13,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 2879 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:06:13,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:06:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:14,020 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:06:14,340 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:06:14,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [605990447] [2019-10-13 23:06:14,378 INFO L162 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-10-13 23:06:14,378 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:06:14,385 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:06:14,393 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:06:14,394 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs