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_spec1_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:07:43,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:07:43,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:07:43,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:07:43,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:07:43,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:07:43,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:07:43,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:07:43,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:07:43,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:07:43,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:07:43,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:07:43,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:07:43,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:07:43,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:07:43,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:07:44,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:07:44,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:07:44,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:07:44,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:07:44,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:07:44,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:07:44,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:07:44,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:07:44,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:07:44,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:07:44,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:07:44,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:07:44,021 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:07:44,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:07:44,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:07:44,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:07:44,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:07:44,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:07:44,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:07:44,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:07:44,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:07:44,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:07:44,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:07:44,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:07:44,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:07:44,030 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 23:07:44,051 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:07:44,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:07:44,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:07:44,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:07:44,056 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:07:44,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:07:44,057 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:07:44,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:07:44,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:07:44,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:07:44,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:07:44,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:07:44,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:07:44,060 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:07:44,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:07:44,061 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:07:44,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:07:44,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:07:44,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:07:44,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:07:44,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:07:44,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:07:44,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:07:44,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:07:44,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:07:44,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:07:44,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:07:44,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:07:44,063 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 23:07:44,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:07:44,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:07:44,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:07:44,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:07:44,362 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:07:44,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c [2019-10-13 23:07:44,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a373f236b/8abfba56b3234560a25f0182bcf690ed/FLAGf42fec5b5 [2019-10-13 23:07:44,984 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:07:44,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c [2019-10-13 23:07:45,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a373f236b/8abfba56b3234560a25f0182bcf690ed/FLAGf42fec5b5 [2019-10-13 23:07:45,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a373f236b/8abfba56b3234560a25f0182bcf690ed [2019-10-13 23:07:45,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:07:45,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:07:45,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:45,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:07:45,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:07:45,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:45" (1/1) ... [2019-10-13 23:07:45,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3264c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:45, skipping insertion in model container [2019-10-13 23:07:45,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:07:45" (1/1) ... [2019-10-13 23:07:45,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:07:45,366 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:07:46,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:46,144 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:07:46,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:07:46,482 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:07:46,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46 WrapperNode [2019-10-13 23:07:46,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:07:46,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:07:46,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:07:46,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:07:46,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (1/1) ... [2019-10-13 23:07:46,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:07:46,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:07:46,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:07:46,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:07:46,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (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 23:07:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:07:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:07:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:07:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:07:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:07:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:07:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:07:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:07:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:07:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:07:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:07:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:07:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:07:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:07:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:07:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:07:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:07:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:07:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:07:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:07:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:07:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:07:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:07:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:07:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:07:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:07:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:07:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:07:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:07:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:07:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:07:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:07:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:07:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:07:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:07:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:07:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:07:46,779 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:07:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:07:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:07:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:07:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:07:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:07:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:07:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:07:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:07:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:07:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:07:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:07:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:07:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:07:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:07:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:07:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:07:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:07:46,785 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:07:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:07:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:07:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:07:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:07:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:07:46,786 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:07:46,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:07:46,788 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:07:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:07:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:07:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:07:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:07:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:07:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:07:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:07:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:07:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:07:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:07:46,792 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:07:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:07:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:07:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:07:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:07:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:07:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 23:07:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:07:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:07:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:07:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:07:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:07:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:07:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:07:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:07:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:07:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:07:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:07:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:07:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:07:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:07:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:07:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:07:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:07:46,803 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:07:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:07:46,807 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:07:46,808 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:07:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:07:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:07:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:07:46,809 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:07:46,812 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:07:46,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:07:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:07:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:07:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:07:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:07:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:07:46,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:07:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:07:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:07:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:07:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:07:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:07:46,815 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:07:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:07:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:07:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:07:46,816 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:07:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:07:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:07:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:07:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:07:46,818 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:07:46,819 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:07:46,820 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:07:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:07:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:07:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:07:46,822 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:07:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:07:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:07:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:07:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:07:46,823 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:07:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:07:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:07:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:07:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:07:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:07:46,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:07:46,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:07:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:07:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:07:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:07:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:07:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:07:46,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:07:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:07:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:07:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:07:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:07:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:07:46,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:07:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:07:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:07:46,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:07:51,484 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:07:51,485 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:07:51,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:51 BoogieIcfgContainer [2019-10-13 23:07:51,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:07:51,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:07:51,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:07:51,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:07:51,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:07:45" (1/3) ... [2019-10-13 23:07:51,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce9c286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:51, skipping insertion in model container [2019-10-13 23:07:51,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:07:46" (2/3) ... [2019-10-13 23:07:51,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce9c286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:07:51, skipping insertion in model container [2019-10-13 23:07:51,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:07:51" (3/3) ... [2019-10-13 23:07:51,494 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2019-10-13 23:07:51,505 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:07:51,514 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:07:51,526 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:07:51,561 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:07:51,561 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:07:51,561 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:07:51,561 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:07:51,562 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:07:51,562 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:07:51,562 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:07:51,562 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:07:51,601 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2019-10-13 23:07:51,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:07:51,632 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:51,635 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] [2019-10-13 23:07:51,639 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:51,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:51,646 INFO L82 PathProgramCache]: Analyzing trace with hash 475016269, now seen corresponding path program 1 times [2019-10-13 23:07:51,656 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:51,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392839417] [2019-10-13 23:07:51,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:51,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:51,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:52,325 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 23:07:52,326 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392839417] [2019-10-13 23:07:52,327 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:52,327 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:07:52,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439660069] [2019-10-13 23:07:52,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:07:52,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:52,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:07:52,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:52,350 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 2 states. [2019-10-13 23:07:52,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:52,415 INFO L93 Difference]: Finished difference Result 628 states and 744 transitions. [2019-10-13 23:07:52,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:07:52,417 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:07:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:52,447 INFO L225 Difference]: With dead ends: 628 [2019-10-13 23:07:52,448 INFO L226 Difference]: Without dead ends: 389 [2019-10-13 23:07:52,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:07:52,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-13 23:07:52,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2019-10-13 23:07:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-13 23:07:52,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 460 transitions. [2019-10-13 23:07:52,593 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 460 transitions. Word has length 125 [2019-10-13 23:07:52,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:52,596 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 460 transitions. [2019-10-13 23:07:52,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:07:52,596 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 460 transitions. [2019-10-13 23:07:52,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:07:52,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:52,600 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] [2019-10-13 23:07:52,600 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:52,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:52,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1624160989, now seen corresponding path program 1 times [2019-10-13 23:07:52,601 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:52,601 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119696899] [2019-10-13 23:07:52,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:52,602 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:52,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:52,824 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 23:07:52,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119696899] [2019-10-13 23:07:52,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:52,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:52,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874948475] [2019-10-13 23:07:52,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:52,829 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:52,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:52,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:52,830 INFO L87 Difference]: Start difference. First operand 389 states and 460 transitions. Second operand 3 states. [2019-10-13 23:07:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:52,901 INFO L93 Difference]: Finished difference Result 613 states and 715 transitions. [2019-10-13 23:07:52,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:52,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:07:52,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:52,914 INFO L225 Difference]: With dead ends: 613 [2019-10-13 23:07:52,915 INFO L226 Difference]: Without dead ends: 391 [2019-10-13 23:07:52,919 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-13 23:07:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 391. [2019-10-13 23:07:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-13 23:07:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 462 transitions. [2019-10-13 23:07:53,040 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 462 transitions. Word has length 126 [2019-10-13 23:07:53,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:53,041 INFO L462 AbstractCegarLoop]: Abstraction has 391 states and 462 transitions. [2019-10-13 23:07:53,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 462 transitions. [2019-10-13 23:07:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:07:53,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:53,044 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] [2019-10-13 23:07:53,044 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:53,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:53,044 INFO L82 PathProgramCache]: Analyzing trace with hash 456882773, now seen corresponding path program 1 times [2019-10-13 23:07:53,045 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:53,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181617658] [2019-10-13 23:07:53,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:53,045 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:53,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:53,226 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 23:07:53,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181617658] [2019-10-13 23:07:53,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:07:53,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:07:53,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443766618] [2019-10-13 23:07:53,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:07:53,231 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:07:53,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:07:53,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:53,232 INFO L87 Difference]: Start difference. First operand 391 states and 462 transitions. Second operand 3 states. [2019-10-13 23:07:53,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:07:53,282 INFO L93 Difference]: Finished difference Result 764 states and 931 transitions. [2019-10-13 23:07:53,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:07:53,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-13 23:07:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:07:53,292 INFO L225 Difference]: With dead ends: 764 [2019-10-13 23:07:53,292 INFO L226 Difference]: Without dead ends: 431 [2019-10-13 23:07:53,294 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:07:53,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-10-13 23:07:53,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 430. [2019-10-13 23:07:53,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2019-10-13 23:07:53,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 530 transitions. [2019-10-13 23:07:53,323 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 530 transitions. Word has length 131 [2019-10-13 23:07:53,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:07:53,324 INFO L462 AbstractCegarLoop]: Abstraction has 430 states and 530 transitions. [2019-10-13 23:07:53,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:07:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 530 transitions. [2019-10-13 23:07:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:07:53,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:07:53,330 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] [2019-10-13 23:07:53,330 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:07:53,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:07:53,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1035656553, now seen corresponding path program 1 times [2019-10-13 23:07:53,331 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:07:53,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224356656] [2019-10-13 23:07:53,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:53,332 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:07:53,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:07:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:07:54,032 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224356656] [2019-10-13 23:07:54,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820398122] [2019-10-13 23:07:54,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:07:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:07:54,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:07:54,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:07:54,749 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 23:07:54,750 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:07:55,026 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 23:07:55,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [954165685] [2019-10-13 23:07:55,058 INFO L162 IcfgInterpreter]: Started Sifa with 121 locations of interest [2019-10-13 23:07:55,059 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:07:55,066 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:07:55,075 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:07:55,076 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs