/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:14:10,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:14:10,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:14:10,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:14:10,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:14:10,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:14:10,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:14:10,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:14:10,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:14:10,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:14:10,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:14:10,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:14:10,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:14:10,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:14:10,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:14:10,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:14:10,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:14:10,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:14:10,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:14:10,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:14:10,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:14:10,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:14:10,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:14:10,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:14:10,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:14:10,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:14:10,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:14:10,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:14:10,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:14:10,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:14:10,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:14:10,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:14:10,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:14:10,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:14:10,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:14:10,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:14:10,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:14:10,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:14:10,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:14:10,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:14:10,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:14:10,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:14:10,317 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:14:10,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:14:10,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:14:10,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:14:10,320 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:14:10,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:14:10,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:14:10,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:14:10,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:14:10,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:14:10,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:14:10,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:14:10,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:14:10,323 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:14:10,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:14:10,324 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:14:10,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:14:10,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:14:10,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:14:10,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:14:10,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:14:10,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:14:10,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:14:10,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:14:10,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:14:10,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:14:10,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:14:10,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:14:10,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:14:10,642 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:14:10,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:14:10,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:14:10,672 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:14:10,672 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:14:10,673 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c [2019-11-07 04:14:10,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fbf9f79e/e1cf0541d4ee4419894ee73bfbe90967/FLAG399e2f00b [2019-11-07 04:14:11,444 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:14:11,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c [2019-11-07 04:14:11,474 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fbf9f79e/e1cf0541d4ee4419894ee73bfbe90967/FLAG399e2f00b [2019-11-07 04:14:11,621 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fbf9f79e/e1cf0541d4ee4419894ee73bfbe90967 [2019-11-07 04:14:11,645 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:14:11,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:14:11,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:14:11,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:14:11,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:14:11,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:14:11" (1/1) ... [2019-11-07 04:14:11,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bab51dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:11, skipping insertion in model container [2019-11-07 04:14:11,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:14:11" (1/1) ... [2019-11-07 04:14:11,692 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:14:11,831 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:14:12,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:14:12,649 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:14:12,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:14:12,872 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:14:12,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12 WrapperNode [2019-11-07 04:14:12,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:14:12,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:14:12,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:14:12,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:14:12,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:12,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:12,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:12,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:13,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:13,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:13,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... [2019-11-07 04:14:13,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:14:13,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:14:13,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:14:13,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:14:13,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:14:13,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:14:13,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:14:13,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:14:13,142 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:14:13,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:14:13,143 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:14:13,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:14:13,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:14:13,144 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:14:13,145 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:14:13,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:14:13,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:14:13,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:14:13,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:14:13,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:14:13,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:14:13,149 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:14:13,149 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:14:13,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:14:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:14:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:14:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:14:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:14:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:14:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:14:13,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:14:13,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:14:13,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:14:13,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:14:13,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:14:13,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:14:13,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:14:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:14:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:14:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:14:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:14:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:14:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:14:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:14:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:14:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:14:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:14:13,154 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:14:13,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:14:13,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:14:13,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:14:13,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:14:13,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:14:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:14:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:14:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:14:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:14:13,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:14:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:14:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:14:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:14:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:14:13,157 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:14:13,158 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:14:13,158 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:14:13,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:14:13,159 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:14:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:14:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:14:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:14:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-07 04:14:13,160 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:14:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:14:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:14:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:14:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:14:13,162 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:14:13,163 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:14:13,163 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:14:13,163 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:14:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:14:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:14:13,164 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:14:13,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:14:13,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:14:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:14:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:14:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:14:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:14:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:14:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:14:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:14:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:14:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:14:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:14:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:14:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:14:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:14:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:14:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:14:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:14:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:14:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:14:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:14:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:14:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:14:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:14:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:14:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:14:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:14:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:14:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:14:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:14:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:14:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:14:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:14:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:14:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:14:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:14:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:14:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:14:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:14:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:14:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:14:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:14:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:14:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:14:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:14:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:14:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:14:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:14:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:14:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:14:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:14:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:14:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:14:13,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:14:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:14:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:14:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:14:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:14:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:14:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:14:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:14:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:14:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:14:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:14:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:14:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:14:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:14:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:14:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:14:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:14:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:14:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:14:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:14:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:14:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:14:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:14:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:14:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:14:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:14:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:14:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:14:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:14:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:14:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:14:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:14:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:14:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:14:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:14:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:14:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:14:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:14:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:14:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:14:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:14:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:14:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:14:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:14:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:14:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:14:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:14:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:14:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:14:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:14:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:14:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:14:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:14:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:14:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:14:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:14:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:14:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:14:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 04:14:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:14:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-07 04:14:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:14:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:14:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:14:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:14:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:14:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:14:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:14:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:14:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:14:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:14:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:14:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:14:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:14:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:14:18,121 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:14:18,121 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:14:18,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:14:18 BoogieIcfgContainer [2019-11-07 04:14:18,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:14:18,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:14:18,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:14:18,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:14:18,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:14:11" (1/3) ... [2019-11-07 04:14:18,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59adf984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:14:18, skipping insertion in model container [2019-11-07 04:14:18,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:14:12" (2/3) ... [2019-11-07 04:14:18,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59adf984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:14:18, skipping insertion in model container [2019-11-07 04:14:18,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:14:18" (3/3) ... [2019-11-07 04:14:18,131 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product27.cil.c [2019-11-07 04:14:18,141 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:14:18,150 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:14:18,162 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:14:18,192 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:14:18,192 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:14:18,192 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:14:18,192 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:14:18,192 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:14:18,193 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:14:18,193 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:14:18,193 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:14:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2019-11-07 04:14:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-11-07 04:14:18,243 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:18,244 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:18,246 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:18,252 INFO L82 PathProgramCache]: Analyzing trace with hash 273409021, now seen corresponding path program 1 times [2019-11-07 04:14:18,262 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:18,263 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482992690] [2019-11-07 04:14:18,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:19,063 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:19,064 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482992690] [2019-11-07 04:14:19,065 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:19,065 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:14:19,066 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588728238] [2019-11-07 04:14:19,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:14:19,075 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:19,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:14:19,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:14:19,091 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2019-11-07 04:14:19,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:19,158 INFO L93 Difference]: Finished difference Result 625 states and 737 transitions. [2019-11-07 04:14:19,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:14:19,159 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 163 [2019-11-07 04:14:19,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:19,179 INFO L225 Difference]: With dead ends: 625 [2019-11-07 04:14:19,179 INFO L226 Difference]: Without dead ends: 398 [2019-11-07 04:14:19,184 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:14:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-11-07 04:14:19,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-11-07 04:14:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-11-07 04:14:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 465 transitions. [2019-11-07 04:14:19,270 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 465 transitions. Word has length 163 [2019-11-07 04:14:19,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:19,273 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 465 transitions. [2019-11-07 04:14:19,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:14:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 465 transitions. [2019-11-07 04:14:19,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-11-07 04:14:19,287 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:19,288 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:19,288 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:19,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:19,288 INFO L82 PathProgramCache]: Analyzing trace with hash 672108081, now seen corresponding path program 1 times [2019-11-07 04:14:19,289 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:19,289 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152543835] [2019-11-07 04:14:19,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:19,592 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:19,593 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152543835] [2019-11-07 04:14:19,593 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:19,593 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:14:19,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000885794] [2019-11-07 04:14:19,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:14:19,599 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:19,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:14:19,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:19,599 INFO L87 Difference]: Start difference. First operand 398 states and 465 transitions. Second operand 3 states. [2019-11-07 04:14:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:19,696 INFO L93 Difference]: Finished difference Result 610 states and 703 transitions. [2019-11-07 04:14:19,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:14:19,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2019-11-07 04:14:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:19,706 INFO L225 Difference]: With dead ends: 610 [2019-11-07 04:14:19,706 INFO L226 Difference]: Without dead ends: 400 [2019-11-07 04:14:19,711 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-11-07 04:14:19,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2019-11-07 04:14:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2019-11-07 04:14:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 467 transitions. [2019-11-07 04:14:19,771 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 467 transitions. Word has length 164 [2019-11-07 04:14:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:19,772 INFO L462 AbstractCegarLoop]: Abstraction has 400 states and 467 transitions. [2019-11-07 04:14:19,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:14:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 467 transitions. [2019-11-07 04:14:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-11-07 04:14:19,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:19,777 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:19,778 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1239010808, now seen corresponding path program 1 times [2019-11-07 04:14:19,778 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:19,778 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440303346] [2019-11-07 04:14:19,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:20,047 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:20,047 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440303346] [2019-11-07 04:14:20,048 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:20,048 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:14:20,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757657489] [2019-11-07 04:14:20,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:14:20,050 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:20,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:14:20,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:20,050 INFO L87 Difference]: Start difference. First operand 400 states and 467 transitions. Second operand 3 states. [2019-11-07 04:14:20,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:20,116 INFO L93 Difference]: Finished difference Result 786 states and 947 transitions. [2019-11-07 04:14:20,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:14:20,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2019-11-07 04:14:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:20,125 INFO L225 Difference]: With dead ends: 786 [2019-11-07 04:14:20,126 INFO L226 Difference]: Without dead ends: 444 [2019-11-07 04:14:20,129 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:14:20,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2019-11-07 04:14:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 443. [2019-11-07 04:14:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-11-07 04:14:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 541 transitions. [2019-11-07 04:14:20,173 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 541 transitions. Word has length 176 [2019-11-07 04:14:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:20,173 INFO L462 AbstractCegarLoop]: Abstraction has 443 states and 541 transitions. [2019-11-07 04:14:20,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:14:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 541 transitions. [2019-11-07 04:14:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-11-07 04:14:20,178 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:20,179 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:14:20,179 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:20,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1024021322, now seen corresponding path program 1 times [2019-11-07 04:14:20,181 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:20,181 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474775772] [2019-11-07 04:14:20,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:14:20,419 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474775772] [2019-11-07 04:14:20,420 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903250132] [2019-11-07 04:14:20,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:14:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:21,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 2879 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:14:21,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:14:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:21,344 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:14:21,604 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:21,605 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1122232434] [2019-11-07 04:14:21,639 INFO L159 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-11-07 04:14:21,640 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:14:21,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:14:21,660 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:14:21,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs