java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:31,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:31,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:32,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:32,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:32,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:32,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:32,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:32,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:32,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:32,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:32,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:32,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:32,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:32,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:32,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:32,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:32,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:32,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:32,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:32,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:32,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:32,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:32,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:32,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:32,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:32,073 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:32,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:32,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:32,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:32,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:32,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:32,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:32,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:32,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:32,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:32,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:32,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:32,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:32,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:32,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:32,088 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 23:13:32,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:32,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:32,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:32,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:32,127 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:32,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:32,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:32,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:32,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:32,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:32,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:32,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:32,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:32,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:32,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:32,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:32,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:32,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:32,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:32,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:32,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:32,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:32,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:32,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:32,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:32,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:32,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:32,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:32,136 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 23:13:32,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:32,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:32,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:32,471 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:32,471 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:32,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c [2019-10-13 23:13:32,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac083d42/25375fec27eb4a718d251054a4f92c44/FLAG7ac449aed [2019-10-13 23:13:33,187 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:13:33,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product29.cil.c [2019-10-13 23:13:33,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac083d42/25375fec27eb4a718d251054a4f92c44/FLAG7ac449aed [2019-10-13 23:13:33,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac083d42/25375fec27eb4a718d251054a4f92c44 [2019-10-13 23:13:33,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:13:33,386 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:13:33,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:33,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:13:33,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:13:33,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f41ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33, skipping insertion in model container [2019-10-13 23:13:33,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,402 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:13:33,477 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:13:34,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:34,330 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:13:34,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:34,646 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:13:34,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34 WrapperNode [2019-10-13 23:13:34,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:34,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:13:34,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:13:34,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:13:34,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (1/1) ... [2019-10-13 23:13:34,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:13:34,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:13:34,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:13:34,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:13:34,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (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 23:13:34,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:13:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:13:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:13:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:13:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:13:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:13:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:13:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:13:34,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:13:34,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:13:34,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:13:34,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:13:34,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:13:34,912 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:13:34,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:34,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:34,913 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:13:34,913 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:13:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:13:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:13:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:13:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:13:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:13:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:13:34,917 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:13:34,917 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:13:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:13:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:13:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:13:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:13:34,918 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:13:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:13:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:13:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:13:34,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:13:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:13:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:13:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:34,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:13:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:13:34,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:13:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:13:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:13:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:13:34,922 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:13:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:13:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:13:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:13:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:13:34,923 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:13:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:13:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:13:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:13:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:13:34,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:13:34,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:13:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:13:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:13:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:13:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:13:34,926 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:13:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:13:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:13:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:13:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:13:34,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:13:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:13:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:13:34,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:13:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:13:34,929 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:13:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:13:34,930 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:13:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:13:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:13:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:13:34,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:13:34,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:13:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:13:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:13:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:13:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:13:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:13:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:13:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:13:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:13:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:13:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:13:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:34,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:13:34,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:13:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:13:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:13:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:13:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:13:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:13:34,938 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:13:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:13:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:13:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:13:34,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:13:34,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:13:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:13:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:13:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:13:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:13:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:13:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:13:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:13:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:13:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:13:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:13:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:13:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:13:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:13:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:13:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:13:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:13:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:13:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:13:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:13:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:13:34,953 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:13:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:13:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:13:34,954 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:13:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:13:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:13:34,955 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:13:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:13:34,963 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:13:34,964 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:13:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:13:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:13:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:13:34,965 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:13:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:13:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:13:34,966 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:13:34,967 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:13:34,968 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:13:34,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:13:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:13:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:13:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:13:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:13:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:13:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:13:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:13:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:13:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:13:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:13:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:13:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:13:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:13:34,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:13:34,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:13:34,979 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:13:34,980 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:13:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:13:34,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:40,024 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:40,025 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:40,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:40 BoogieIcfgContainer [2019-10-13 23:13:40,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:40,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:40,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:40,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:40,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:13:33" (1/3) ... [2019-10-13 23:13:40,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4786e1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:40, skipping insertion in model container [2019-10-13 23:13:40,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:34" (2/3) ... [2019-10-13 23:13:40,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4786e1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:40, skipping insertion in model container [2019-10-13 23:13:40,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:40" (3/3) ... [2019-10-13 23:13:40,035 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product29.cil.c [2019-10-13 23:13:40,046 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:40,056 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:40,069 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:40,149 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:40,149 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:40,150 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:40,150 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:40,150 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:40,150 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:40,150 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:40,150 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2019-10-13 23:13:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:13:40,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:40,199 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:40,201 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:40,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:40,208 INFO L82 PathProgramCache]: Analyzing trace with hash -149949075, now seen corresponding path program 1 times [2019-10-13 23:13:40,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:40,218 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830333137] [2019-10-13 23:13:40,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:40,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:40,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:40,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830333137] [2019-10-13 23:13:40,910 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:40,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:40,911 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070159259] [2019-10-13 23:13:40,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:40,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:40,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:40,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:40,939 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 2 states. [2019-10-13 23:13:41,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:41,011 INFO L93 Difference]: Finished difference Result 589 states and 705 transitions. [2019-10-13 23:13:41,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:41,013 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-13 23:13:41,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:41,034 INFO L225 Difference]: With dead ends: 589 [2019-10-13 23:13:41,034 INFO L226 Difference]: Without dead ends: 373 [2019-10-13 23:13:41,040 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 23:13:41,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-10-13 23:13:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-10-13 23:13:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 23:13:41,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 443 transitions. [2019-10-13 23:13:41,128 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 443 transitions. Word has length 132 [2019-10-13 23:13:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,131 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 443 transitions. [2019-10-13 23:13:41,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 443 transitions. [2019-10-13 23:13:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-13 23:13:41,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,137 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:41,138 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,138 INFO L82 PathProgramCache]: Analyzing trace with hash 960161321, now seen corresponding path program 1 times [2019-10-13 23:13:41,138 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114989723] [2019-10-13 23:13:41,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:41,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114989723] [2019-10-13 23:13:41,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:41,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:41,350 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097375537] [2019-10-13 23:13:41,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:41,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:41,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:41,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:41,353 INFO L87 Difference]: Start difference. First operand 373 states and 443 transitions. Second operand 3 states. [2019-10-13 23:13:41,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:41,430 INFO L93 Difference]: Finished difference Result 574 states and 673 transitions. [2019-10-13 23:13:41,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:41,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-13 23:13:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:41,440 INFO L225 Difference]: With dead ends: 574 [2019-10-13 23:13:41,440 INFO L226 Difference]: Without dead ends: 375 [2019-10-13 23:13:41,444 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 23:13:41,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-13 23:13:41,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-13 23:13:41,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-13 23:13:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 445 transitions. [2019-10-13 23:13:41,503 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 445 transitions. Word has length 133 [2019-10-13 23:13:41,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,504 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 445 transitions. [2019-10-13 23:13:41,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 445 transitions. [2019-10-13 23:13:41,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:13:41,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,512 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:41,512 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2002622308, now seen corresponding path program 1 times [2019-10-13 23:13:41,513 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495514079] [2019-10-13 23:13:41,513 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,513 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:41,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495514079] [2019-10-13 23:13:41,822 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:41,823 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:41,823 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458374014] [2019-10-13 23:13:41,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:41,824 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:41,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:41,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:41,824 INFO L87 Difference]: Start difference. First operand 375 states and 445 transitions. Second operand 3 states. [2019-10-13 23:13:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:41,856 INFO L93 Difference]: Finished difference Result 732 states and 897 transitions. [2019-10-13 23:13:41,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:41,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-13 23:13:41,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:41,860 INFO L225 Difference]: With dead ends: 732 [2019-10-13 23:13:41,861 INFO L226 Difference]: Without dead ends: 415 [2019-10-13 23:13:41,863 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 23:13:41,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-13 23:13:41,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 414. [2019-10-13 23:13:41,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-13 23:13:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 513 transitions. [2019-10-13 23:13:41,893 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 513 transitions. Word has length 138 [2019-10-13 23:13:41,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,893 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 513 transitions. [2019-10-13 23:13:41,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 513 transitions. [2019-10-13 23:13:41,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:13:41,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,901 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:41,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,902 INFO L82 PathProgramCache]: Analyzing trace with hash -634608407, now seen corresponding path program 1 times [2019-10-13 23:13:41,902 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,902 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542720951] [2019-10-13 23:13:41,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:13:42,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542720951] [2019-10-13 23:13:42,834 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619706450] [2019-10-13 23:13:42,834 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 23:13:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:43,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 2733 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:43,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:43,736 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:43,976 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1011252624] [2019-10-13 23:13:44,014 INFO L162 IcfgInterpreter]: Started Sifa with 128 locations of interest [2019-10-13 23:13:44,014 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:44,027 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:44,035 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:44,035 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs