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_spec3_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:48,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:48,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:48,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:48,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:48,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:48,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:48,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:48,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:48,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:48,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:48,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:48,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:48,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:48,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:48,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:48,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:48,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:48,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:48,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:48,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:48,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:48,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:48,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:48,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:48,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:48,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:48,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:48,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:48,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:48,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:48,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:48,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:48,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:48,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:48,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:48,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:48,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:48,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:48,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:48,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:48,589 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 23:09:48,607 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:48,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:48,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:48,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:48,609 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:48,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:48,610 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:48,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:48,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:48,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:48,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:48,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:48,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:48,611 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:48,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:48,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:48,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:48,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:48,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:48,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:48,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:48,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:48,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:48,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:48,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:48,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:48,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:48,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:48,614 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 23:09:48,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:48,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:48,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:48,948 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:48,948 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:48,949 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2019-10-13 23:09:49,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc8aa566/3217d41ca01942d69e6f7a17f4391aa2/FLAG2a3c4f849 [2019-10-13 23:09:49,573 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:49,574 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product29.cil.c [2019-10-13 23:09:49,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc8aa566/3217d41ca01942d69e6f7a17f4391aa2/FLAG2a3c4f849 [2019-10-13 23:09:49,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc8aa566/3217d41ca01942d69e6f7a17f4391aa2 [2019-10-13 23:09:49,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:49,806 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:49,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:49,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:49,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:49,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:49" (1/1) ... [2019-10-13 23:09:49,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759a7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:49, skipping insertion in model container [2019-10-13 23:09:49,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:49" (1/1) ... [2019-10-13 23:09:49,824 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:49,905 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:50,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:50,654 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:50,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:50,861 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:50,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50 WrapperNode [2019-10-13 23:09:50,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:50,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:50,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:50,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:50,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:51,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:51,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:51,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:51,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:51,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:51,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:51,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:51,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (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 23:09:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:51,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:51,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:51,213 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:51,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:51,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:51,216 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:51,219 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:51,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:51,220 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:51,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:51,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:51,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:51,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:51,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:51,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:51,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:51,223 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:51,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:51,223 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:51,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:51,224 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:51,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:51,225 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:51,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:51,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:51,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:51,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:51,229 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:51,230 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:51,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:51,230 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:51,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:09:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:51,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:51,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:51,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:51,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:51,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:51,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:51,239 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:51,240 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:51,242 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:51,243 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:51,245 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:51,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:09:51,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:51,245 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:51,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:51,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:51,247 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:51,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:51,251 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:51,253 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:51,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:51,258 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:51,259 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:51,260 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:51,261 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:51,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:51,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:51,271 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:51,272 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:51,273 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:09:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:51,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:51,282 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:09:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:56,155 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:56,156 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:56,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:56 BoogieIcfgContainer [2019-10-13 23:09:56,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:56,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:56,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:56,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:56,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:49" (1/3) ... [2019-10-13 23:09:56,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1385be18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:56, skipping insertion in model container [2019-10-13 23:09:56,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (2/3) ... [2019-10-13 23:09:56,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1385be18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:56, skipping insertion in model container [2019-10-13 23:09:56,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:56" (3/3) ... [2019-10-13 23:09:56,165 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product29.cil.c [2019-10-13 23:09:56,176 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:56,189 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:56,201 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:56,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:56,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:56,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:56,232 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:56,232 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:56,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:56,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:56,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states. [2019-10-13 23:09:56,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:09:56,284 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:56,286 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:56,288 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1700002007, now seen corresponding path program 1 times [2019-10-13 23:09:56,305 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:56,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243393226] [2019-10-13 23:09:56,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:56,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:56,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:56,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243393226] [2019-10-13 23:09:56,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:56,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:56,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430243728] [2019-10-13 23:09:56,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:56,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:56,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:56,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:56,955 INFO L87 Difference]: Start difference. First operand 429 states. Second operand 2 states. [2019-10-13 23:09:57,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:57,034 INFO L93 Difference]: Finished difference Result 605 states and 734 transitions. [2019-10-13 23:09:57,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:57,037 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 159 [2019-10-13 23:09:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:57,071 INFO L225 Difference]: With dead ends: 605 [2019-10-13 23:09:57,072 INFO L226 Difference]: Without dead ends: 381 [2019-10-13 23:09:57,085 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 23:09:57,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2019-10-13 23:09:57,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2019-10-13 23:09:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-13 23:09:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 455 transitions. [2019-10-13 23:09:57,182 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 455 transitions. Word has length 159 [2019-10-13 23:09:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:57,184 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 455 transitions. [2019-10-13 23:09:57,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 455 transitions. [2019-10-13 23:09:57,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:09:57,190 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,190 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:57,191 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,191 INFO L82 PathProgramCache]: Analyzing trace with hash 939346425, now seen corresponding path program 1 times [2019-10-13 23:09:57,191 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,192 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627129361] [2019-10-13 23:09:57,192 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,192 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:57,540 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627129361] [2019-10-13 23:09:57,541 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:57,541 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:57,541 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648270164] [2019-10-13 23:09:57,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:57,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:57,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:57,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:57,547 INFO L87 Difference]: Start difference. First operand 381 states and 455 transitions. Second operand 3 states. [2019-10-13 23:09:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:57,632 INFO L93 Difference]: Finished difference Result 590 states and 697 transitions. [2019-10-13 23:09:57,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:57,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-13 23:09:57,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:57,644 INFO L225 Difference]: With dead ends: 590 [2019-10-13 23:09:57,644 INFO L226 Difference]: Without dead ends: 383 [2019-10-13 23:09:57,646 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 23:09:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2019-10-13 23:09:57,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2019-10-13 23:09:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2019-10-13 23:09:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 457 transitions. [2019-10-13 23:09:57,708 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 457 transitions. Word has length 160 [2019-10-13 23:09:57,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:57,709 INFO L462 AbstractCegarLoop]: Abstraction has 383 states and 457 transitions. [2019-10-13 23:09:57,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:57,709 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 457 transitions. [2019-10-13 23:09:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:09:57,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,720 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:57,720 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1281197486, now seen corresponding path program 1 times [2019-10-13 23:09:57,721 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747073057] [2019-10-13 23:09:57,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:57,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747073057] [2019-10-13 23:09:57,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:57,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:57,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92482172] [2019-10-13 23:09:57,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:57,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:57,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:57,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:57,969 INFO L87 Difference]: Start difference. First operand 383 states and 457 transitions. Second operand 3 states. [2019-10-13 23:09:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:58,000 INFO L93 Difference]: Finished difference Result 748 states and 921 transitions. [2019-10-13 23:09:58,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:58,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 23:09:58,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:58,004 INFO L225 Difference]: With dead ends: 748 [2019-10-13 23:09:58,004 INFO L226 Difference]: Without dead ends: 423 [2019-10-13 23:09:58,006 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 23:09:58,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-13 23:09:58,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 422. [2019-10-13 23:09:58,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:09:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 525 transitions. [2019-10-13 23:09:58,035 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 525 transitions. Word has length 165 [2019-10-13 23:09:58,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:58,036 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 525 transitions. [2019-10-13 23:09:58,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:58,036 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 525 transitions. [2019-10-13 23:09:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 23:09:58,044 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:58,045 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:58,045 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:58,045 INFO L82 PathProgramCache]: Analyzing trace with hash -2141300424, now seen corresponding path program 1 times [2019-10-13 23:09:58,046 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:58,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339570086] [2019-10-13 23:09:58,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,047 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:58,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339570086] [2019-10-13 23:09:58,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,820 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-13 23:09:58,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354679964] [2019-10-13 23:09:58,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-13 23:09:58,821 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-13 23:09:58,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2019-10-13 23:09:58,822 INFO L87 Difference]: Start difference. First operand 422 states and 525 transitions. Second operand 27 states. [2019-10-13 23:10:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:12,825 INFO L93 Difference]: Finished difference Result 1149 states and 1402 transitions. [2019-10-13 23:10:12,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-13 23:10:12,825 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 166 [2019-10-13 23:10:12,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:12,836 INFO L225 Difference]: With dead ends: 1149 [2019-10-13 23:10:12,836 INFO L226 Difference]: Without dead ends: 942 [2019-10-13 23:10:12,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=434, Invalid=3472, Unknown=0, NotChecked=0, Total=3906 [2019-10-13 23:10:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2019-10-13 23:10:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 931. [2019-10-13 23:10:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2019-10-13 23:10:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1129 transitions. [2019-10-13 23:10:12,925 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1129 transitions. Word has length 166 [2019-10-13 23:10:12,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:12,930 INFO L462 AbstractCegarLoop]: Abstraction has 931 states and 1129 transitions. [2019-10-13 23:10:12,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-13 23:10:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1129 transitions. [2019-10-13 23:10:12,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:10:12,934 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:12,934 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:10:12,934 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:12,935 INFO L82 PathProgramCache]: Analyzing trace with hash 84209948, now seen corresponding path program 1 times [2019-10-13 23:10:12,935 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:12,936 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353608450] [2019-10-13 23:10:12,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:12,937 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:12,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:10:14,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353608450] [2019-10-13 23:10:14,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182953728] [2019-10-13 23:10:14,202 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 23:10:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:14,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:14,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:14,926 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:14,927 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:15,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1609609610] [2019-10-13 23:10:15,311 INFO L162 IcfgInterpreter]: Started Sifa with 155 locations of interest [2019-10-13 23:10:15,312 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:15,319 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:15,327 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:15,327 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs