/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:20:49,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:20:49,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:20:49,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:20:49,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:20:49,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:20:49,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:20:49,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:20:49,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:20:49,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:20:49,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:20:49,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:20:49,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:20:49,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:20:49,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:20:49,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:20:49,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:20:49,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:20:49,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:20:49,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:20:49,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:20:49,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:20:49,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:20:49,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:20:49,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:20:49,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:20:49,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:20:49,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:20:49,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:20:49,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:20:49,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:20:49,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:20:49,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:20:49,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:20:49,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:20:49,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:20:49,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:20:49,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:20:49,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:20:49,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:20:49,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:20:49,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:20:49,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:20:49,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:20:49,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:20:49,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:20:49,321 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:20:49,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:20:49,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:20:49,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:20:49,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:20:49,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:20:49,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:20:49,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:20:49,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:20:49,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:20:49,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:20:49,324 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:20:49,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:20:49,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:20:49,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:20:49,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:20:49,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:20:49,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:20:49,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:20:49,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:20:49,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:20:49,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:20:49,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:20:49,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:20:49,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:20:49,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:20:49,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:20:49,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:20:49,615 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:20:49,615 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:20:49,616 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2019-11-07 04:20:49,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6da84f5d/2e3ee8b210694440ac10b6c424efe215/FLAGb368fffbd [2019-11-07 04:20:50,308 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:20:50,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product31.cil.c [2019-11-07 04:20:50,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6da84f5d/2e3ee8b210694440ac10b6c424efe215/FLAGb368fffbd [2019-11-07 04:20:50,527 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6da84f5d/2e3ee8b210694440ac10b6c424efe215 [2019-11-07 04:20:50,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:20:50,537 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:20:50,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:50,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:20:50,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:20:50,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:50" (1/1) ... [2019-11-07 04:20:50,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50c56d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:50, skipping insertion in model container [2019-11-07 04:20:50,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:20:50" (1/1) ... [2019-11-07 04:20:50,553 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:20:50,641 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:20:51,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:51,318 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:20:51,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:20:51,599 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:20:51,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51 WrapperNode [2019-11-07 04:20:51,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:20:51,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:20:51,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:20:51,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:20:51,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... [2019-11-07 04:20:51,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:20:51,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:20:51,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:20:51,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:20:51,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:20:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:20:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:20:51,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:20:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:20:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:20:51,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:20:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:20:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:20:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:20:51,987 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:20:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:20:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:20:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:20:51,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:20:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:20:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:20:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:20:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:20:51,989 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:20:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:20:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:20:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:20:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:20:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:20:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:20:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:20:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:20:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:20:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:20:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:20:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:20:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:20:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:20:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:20:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:20:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:20:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:20:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:20:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:20:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:20:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:20:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:20:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:20:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:20:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:20:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:20:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:20:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:20:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:20:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:20:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:20:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:20:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:20:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:20:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:20:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:20:52,000 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:20:52,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:20:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:20:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:20:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:20:52,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:20:52,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:20:52,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:20:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:20:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:20:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:20:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-11-07 04:20:52,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:20:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:20:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:20:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:20:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:20:52,006 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:20:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:20:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:20:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:20:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:20:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:20:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:20:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:20:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:20:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:20:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:20:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:20:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:20:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:20:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:20:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:20:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:20:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:20:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:20:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:20:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:20:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:20:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:20:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:20:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:20:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:20:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:20:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:20:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:20:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:20:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:20:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:20:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:20:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:20:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:20:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:20:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:20:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:20:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:20:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:20:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:20:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:20:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:20:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:20:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:20:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:20:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:20:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:20:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:20:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:20:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:20:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:20:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:20:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:20:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:20:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:20:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:20:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:20:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:20:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:20:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:20:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:20:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:20:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:20:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:20:52,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:20:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:20:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:20:52,023 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:20:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:20:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:20:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:20:52,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:20:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:20:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:20:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:20:52,025 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:20:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:20:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:20:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:20:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:20:52,026 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:20:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:20:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:20:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:20:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:20:52,027 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:20:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:20:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:20:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:20:52,028 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:20:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:20:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:20:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:20:52,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-11-07 04:20:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:20:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:20:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:20:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:20:52,030 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:20:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-11-07 04:20:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:20:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:20:52,031 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:20:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:20:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:20:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:20:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:20:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:20:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:20:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:20:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-11-07 04:20:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:20:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:20:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:20:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:20:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:20:52,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:20:56,783 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:20:56,783 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:20:56,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:56 BoogieIcfgContainer [2019-11-07 04:20:56,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:20:56,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:20:56,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:20:56,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:20:56,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:20:50" (1/3) ... [2019-11-07 04:20:56,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee68c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:56, skipping insertion in model container [2019-11-07 04:20:56,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:20:51" (2/3) ... [2019-11-07 04:20:56,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee68c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:20:56, skipping insertion in model container [2019-11-07 04:20:56,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:20:56" (3/3) ... [2019-11-07 04:20:56,793 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product31.cil.c [2019-11-07 04:20:56,803 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:20:56,814 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:20:56,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:20:56,857 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:20:56,857 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:20:56,857 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:20:56,857 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:20:56,857 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:20:56,857 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:20:56,857 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:20:56,858 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:20:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states. [2019-11-07 04:20:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-11-07 04:20:56,907 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:56,908 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:56,910 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:56,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:56,916 INFO L82 PathProgramCache]: Analyzing trace with hash 693826238, now seen corresponding path program 1 times [2019-11-07 04:20:56,926 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:56,926 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783651029] [2019-11-07 04:20:56,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:57,528 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783651029] [2019-11-07 04:20:57,529 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:57,529 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:20:57,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783445745] [2019-11-07 04:20:57,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:20:57,539 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:57,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:20:57,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:20:57,556 INFO L87 Difference]: Start difference. First operand 421 states. Second operand 2 states. [2019-11-07 04:20:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:57,643 INFO L93 Difference]: Finished difference Result 650 states and 779 transitions. [2019-11-07 04:20:57,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:20:57,645 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-11-07 04:20:57,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:57,665 INFO L225 Difference]: With dead ends: 650 [2019-11-07 04:20:57,665 INFO L226 Difference]: Without dead ends: 400 [2019-11-07 04:20:57,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:20:57,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-11-07 04:20:57,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2019-11-07 04:20:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2019-11-07 04:20:57,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 475 transitions. [2019-11-07 04:20:57,767 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 475 transitions. Word has length 152 [2019-11-07 04:20:57,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:57,769 INFO L462 AbstractCegarLoop]: Abstraction has 400 states and 475 transitions. [2019-11-07 04:20:57,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:20:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 475 transitions. [2019-11-07 04:20:57,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-11-07 04:20:57,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:57,776 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:20:57,776 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash 733417066, now seen corresponding path program 1 times [2019-11-07 04:20:57,777 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:57,777 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290176136] [2019-11-07 04:20:57,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:58,192 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:58,193 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290176136] [2019-11-07 04:20:58,193 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:58,193 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:58,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87010337] [2019-11-07 04:20:58,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:58,199 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:58,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:58,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:58,200 INFO L87 Difference]: Start difference. First operand 400 states and 475 transitions. Second operand 3 states. [2019-11-07 04:20:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:58,314 INFO L93 Difference]: Finished difference Result 635 states and 745 transitions. [2019-11-07 04:20:58,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:58,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-11-07 04:20:58,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:58,330 INFO L225 Difference]: With dead ends: 635 [2019-11-07 04:20:58,331 INFO L226 Difference]: Without dead ends: 402 [2019-11-07 04:20:58,336 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2019-11-07 04:20:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2019-11-07 04:20:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-11-07 04:20:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 477 transitions. [2019-11-07 04:20:58,417 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 477 transitions. Word has length 153 [2019-11-07 04:20:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:58,418 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 477 transitions. [2019-11-07 04:20:58,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 477 transitions. [2019-11-07 04:20:58,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-07 04:20:58,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:58,426 INFO L410 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] [2019-11-07 04:20:58,426 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:58,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1916025706, now seen corresponding path program 1 times [2019-11-07 04:20:58,427 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:58,427 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668951278] [2019-11-07 04:20:58,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:58,763 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:20:58,764 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668951278] [2019-11-07 04:20:58,764 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:58,764 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:20:58,765 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021663002] [2019-11-07 04:20:58,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:20:58,768 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:58,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:20:58,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:58,768 INFO L87 Difference]: Start difference. First operand 402 states and 477 transitions. Second operand 3 states. [2019-11-07 04:20:58,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:20:58,827 INFO L93 Difference]: Finished difference Result 786 states and 961 transitions. [2019-11-07 04:20:58,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:20:58,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-11-07 04:20:58,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:20:58,834 INFO L225 Difference]: With dead ends: 786 [2019-11-07 04:20:58,834 INFO L226 Difference]: Without dead ends: 442 [2019-11-07 04:20:58,836 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:20:58,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2019-11-07 04:20:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 441. [2019-11-07 04:20:58,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2019-11-07 04:20:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 545 transitions. [2019-11-07 04:20:58,873 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 545 transitions. Word has length 158 [2019-11-07 04:20:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:20:58,874 INFO L462 AbstractCegarLoop]: Abstraction has 441 states and 545 transitions. [2019-11-07 04:20:58,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:20:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 545 transitions. [2019-11-07 04:20:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-11-07 04:20:58,881 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:20:58,881 INFO L410 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] [2019-11-07 04:20:58,881 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:20:58,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:20:58,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1761393649, now seen corresponding path program 1 times [2019-11-07 04:20:58,882 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:20:58,883 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196216964] [2019-11-07 04:20:58,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:20:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:20:59,679 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 04:20:59,680 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196216964] [2019-11-07 04:20:59,680 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:20:59,680 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-11-07 04:20:59,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948414883] [2019-11-07 04:20:59,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-07 04:20:59,682 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:20:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-07 04:20:59,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-11-07 04:20:59,687 INFO L87 Difference]: Start difference. First operand 441 states and 545 transitions. Second operand 25 states. [2019-11-07 04:21:14,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:21:14,999 INFO L93 Difference]: Finished difference Result 1249 states and 1482 transitions. [2019-11-07 04:21:14,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-11-07 04:21:14,999 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 159 [2019-11-07 04:21:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:21:15,009 INFO L225 Difference]: With dead ends: 1249 [2019-11-07 04:21:15,009 INFO L226 Difference]: Without dead ends: 909 [2019-11-07 04:21:15,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2019-11-07 04:21:15,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2019-11-07 04:21:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 899. [2019-11-07 04:21:15,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2019-11-07 04:21:15,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1063 transitions. [2019-11-07 04:21:15,067 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1063 transitions. Word has length 159 [2019-11-07 04:21:15,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:21:15,068 INFO L462 AbstractCegarLoop]: Abstraction has 899 states and 1063 transitions. [2019-11-07 04:21:15,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-07 04:21:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1063 transitions. [2019-11-07 04:21:15,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-11-07 04:21:15,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:21:15,071 INFO L410 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] [2019-11-07 04:21:15,072 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:21:15,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:21:15,072 INFO L82 PathProgramCache]: Analyzing trace with hash 415254010, now seen corresponding path program 1 times [2019-11-07 04:21:15,073 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:21:15,073 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942956174] [2019-11-07 04:21:15,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:21:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:16,117 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-07 04:21:16,118 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942956174] [2019-11-07 04:21:16,118 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291045759] [2019-11-07 04:21:16,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:21:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:21:16,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 2850 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:21:16,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:21:16,838 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:21:16,838 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:21:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:21:17,094 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1297913289] [2019-11-07 04:21:17,120 INFO L159 IcfgInterpreter]: Started Sifa with 148 locations of interest [2019-11-07 04:21:17,121 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:21:17,127 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:21:17,134 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:21:17,134 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs