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_spec27_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:08:25,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:08:25,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:08:25,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:08:25,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:08:25,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:08:25,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:08:25,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:08:25,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:08:25,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:08:25,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:08:25,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:08:25,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:08:25,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:08:25,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:08:25,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:08:25,063 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:08:25,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:08:25,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:08:25,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:08:25,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:08:25,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:08:25,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:08:25,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:08:25,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:08:25,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:08:25,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:08:25,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:08:25,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:08:25,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:08:25,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:08:25,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:08:25,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:08:25,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:08:25,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:08:25,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:08:25,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:08:25,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:08:25,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:08:25,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:08:25,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:08:25,099 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 23:08:25,114 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:08:25,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:08:25,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:08:25,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:08:25,115 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:08:25,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:08:25,116 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:08:25,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:08:25,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:08:25,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:08:25,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:08:25,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:08:25,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:08:25,117 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:08:25,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:08:25,118 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:08:25,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:08:25,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:08:25,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:08:25,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:08:25,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:08:25,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:08:25,119 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:08:25,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:08:25,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:08:25,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:08:25,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:08:25,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:08:25,120 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 23:08:25,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:08:25,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:08:25,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:08:25,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:08:25,418 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:08:25,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-10-13 23:08:25,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14e8e210/c2931dff0f844cf4af0e84d168787dfd/FLAGd7740af1b [2019-10-13 23:08:26,086 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:08:26,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-10-13 23:08:26,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14e8e210/c2931dff0f844cf4af0e84d168787dfd/FLAGd7740af1b [2019-10-13 23:08:26,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f14e8e210/c2931dff0f844cf4af0e84d168787dfd [2019-10-13 23:08:26,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:08:26,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:08:26,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:26,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:08:26,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:08:26,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:26,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8f2a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:26, skipping insertion in model container [2019-10-13 23:08:26,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:08:26" (1/1) ... [2019-10-13 23:08:26,368 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:08:26,449 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:08:27,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:27,147 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:08:27,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:08:27,381 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:08:27,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27 WrapperNode [2019-10-13 23:08:27,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:08:27,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:08:27,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:08:27,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:08:27,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (1/1) ... [2019-10-13 23:08:27,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:08:27,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:08:27,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:08:27,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:08:27,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (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 23:08:27,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:08:27,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:08:27,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:27,647 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:08:27,647 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:08:27,648 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:27,649 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:08:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:08:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:08:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:08:27,650 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:08:27,651 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:08:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:08:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:08:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:08:27,652 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:08:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:08:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:08:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:08:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:08:27,655 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:08:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:08:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:08:27,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:08:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:08:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:08:27,657 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:08:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:08:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:08:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:08:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:08:27,658 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:08:27,659 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:08:27,659 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:08:27,659 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:08:27,659 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:08:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:08:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:08:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:08:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:08:27,660 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:08:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:08:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:08:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:08:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:08:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:08:27,665 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:08:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:08:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:08:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:08:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:08:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:08:27,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:08:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:08:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:08:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:08:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:08:27,667 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:08:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:08:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:08:27,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:08:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:08:27,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:08:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:08:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:08:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:08:27,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:08:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:08:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:08:27,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:08:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:08:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:27,672 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:08:27,673 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:08:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:08:27,674 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:08:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:08:27,675 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:08:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:08:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:08:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:08:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:08:27,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:08:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:08:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:08:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:08:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:08:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:08:27,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:08:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:08:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:08:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:08:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:08:27,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:08:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:08:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:08:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:08:27,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:08:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:08:27,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:08:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:08:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:08:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:08:27,680 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:08:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:08:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:08:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:08:27,681 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:08:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:08:27,682 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:08:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:08:27,683 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:08:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:08:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:08:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:08:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:08:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:08:27,684 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:08:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:08:27,685 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:08:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:08:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:08:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:08:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:08:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:08:27,690 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:08:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:08:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:08:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:08:27,691 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:08:27,692 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:08:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:08:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:08:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:08:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:08:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:08:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:08:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:08:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-13 23:08:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:08:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:08:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:08:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:08:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:08:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:08:27,703 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:08:27,704 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:08:27,705 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:08:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:08:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:08:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:08:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:08:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:08:27,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:08:27,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:08:27,710 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:08:27,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:08:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:08:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:08:32,144 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:08:32,144 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:08:32,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:32 BoogieIcfgContainer [2019-10-13 23:08:32,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:08:32,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:08:32,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:08:32,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:08:32,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:08:26" (1/3) ... [2019-10-13 23:08:32,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491f02f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:32, skipping insertion in model container [2019-10-13 23:08:32,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:08:27" (2/3) ... [2019-10-13 23:08:32,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491f02f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:08:32, skipping insertion in model container [2019-10-13 23:08:32,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:08:32" (3/3) ... [2019-10-13 23:08:32,155 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product17.cil.c [2019-10-13 23:08:32,164 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:08:32,174 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:08:32,184 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:08:32,213 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:08:32,214 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:08:32,214 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:08:32,214 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:08:32,214 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:08:32,214 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:08:32,214 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:08:32,214 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:08:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states. [2019-10-13 23:08:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 23:08:32,263 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:32,265 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:32,267 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:32,273 INFO L82 PathProgramCache]: Analyzing trace with hash -34515269, now seen corresponding path program 1 times [2019-10-13 23:08:32,281 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:32,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316219116] [2019-10-13 23:08:32,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:32,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:32,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:33,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316219116] [2019-10-13 23:08:33,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:33,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:08:33,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116846527] [2019-10-13 23:08:33,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:08:33,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:33,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:08:33,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:08:33,087 INFO L87 Difference]: Start difference. First operand 371 states. Second operand 2 states. [2019-10-13 23:08:33,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:33,197 INFO L93 Difference]: Finished difference Result 503 states and 597 transitions. [2019-10-13 23:08:33,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:08:33,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-10-13 23:08:33,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:33,231 INFO L225 Difference]: With dead ends: 503 [2019-10-13 23:08:33,231 INFO L226 Difference]: Without dead ends: 330 [2019-10-13 23:08:33,242 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 23:08:33,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-13 23:08:33,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2019-10-13 23:08:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2019-10-13 23:08:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 388 transitions. [2019-10-13 23:08:33,325 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 388 transitions. Word has length 148 [2019-10-13 23:08:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:33,327 INFO L462 AbstractCegarLoop]: Abstraction has 330 states and 388 transitions. [2019-10-13 23:08:33,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:08:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 388 transitions. [2019-10-13 23:08:33,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-13 23:08:33,333 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:33,334 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:33,334 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:33,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:33,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1919200878, now seen corresponding path program 1 times [2019-10-13 23:08:33,335 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:33,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813858162] [2019-10-13 23:08:33,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:33,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813858162] [2019-10-13 23:08:33,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:33,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:33,564 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349762803] [2019-10-13 23:08:33,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:33,566 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:33,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:33,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:33,567 INFO L87 Difference]: Start difference. First operand 330 states and 388 transitions. Second operand 3 states. [2019-10-13 23:08:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:33,637 INFO L93 Difference]: Finished difference Result 488 states and 563 transitions. [2019-10-13 23:08:33,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:33,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-13 23:08:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:33,643 INFO L225 Difference]: With dead ends: 488 [2019-10-13 23:08:33,643 INFO L226 Difference]: Without dead ends: 332 [2019-10-13 23:08:33,645 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 23:08:33,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2019-10-13 23:08:33,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2019-10-13 23:08:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2019-10-13 23:08:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 390 transitions. [2019-10-13 23:08:33,685 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 390 transitions. Word has length 149 [2019-10-13 23:08:33,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:33,686 INFO L462 AbstractCegarLoop]: Abstraction has 332 states and 390 transitions. [2019-10-13 23:08:33,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 390 transitions. [2019-10-13 23:08:33,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:08:33,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:33,690 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:33,691 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:33,691 INFO L82 PathProgramCache]: Analyzing trace with hash 983640209, now seen corresponding path program 1 times [2019-10-13 23:08:33,691 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:33,692 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127284593] [2019-10-13 23:08:33,692 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,692 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:33,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:34,051 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:08:34,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127284593] [2019-10-13 23:08:34,053 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:34,054 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:08:34,054 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586445947] [2019-10-13 23:08:34,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:08:34,057 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:34,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:08:34,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:08:34,058 INFO L87 Difference]: Start difference. First operand 332 states and 390 transitions. Second operand 3 states. [2019-10-13 23:08:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:34,129 INFO L93 Difference]: Finished difference Result 646 states and 787 transitions. [2019-10-13 23:08:34,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:08:34,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-13 23:08:34,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:34,137 INFO L225 Difference]: With dead ends: 646 [2019-10-13 23:08:34,138 INFO L226 Difference]: Without dead ends: 372 [2019-10-13 23:08:34,142 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 23:08:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2019-10-13 23:08:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2019-10-13 23:08:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-13 23:08:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 458 transitions. [2019-10-13 23:08:34,209 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 458 transitions. Word has length 154 [2019-10-13 23:08:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:34,212 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 458 transitions. [2019-10-13 23:08:34,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:08:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 458 transitions. [2019-10-13 23:08:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:08:34,226 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:34,227 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:34,228 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:34,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:34,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1408642955, now seen corresponding path program 1 times [2019-10-13 23:08:34,229 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:34,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248316663] [2019-10-13 23:08:34,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,232 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:34,578 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248316663] [2019-10-13 23:08:34,578 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:34,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:08:34,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127680645] [2019-10-13 23:08:34,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:08:34,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:34,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:08:34,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:34,582 INFO L87 Difference]: Start difference. First operand 371 states and 458 transitions. Second operand 8 states. [2019-10-13 23:08:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:34,658 INFO L93 Difference]: Finished difference Result 515 states and 623 transitions. [2019-10-13 23:08:34,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:08:34,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2019-10-13 23:08:34,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:34,665 INFO L225 Difference]: With dead ends: 515 [2019-10-13 23:08:34,665 INFO L226 Difference]: Without dead ends: 371 [2019-10-13 23:08:34,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:08:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-13 23:08:34,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2019-10-13 23:08:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2019-10-13 23:08:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 457 transitions. [2019-10-13 23:08:34,697 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 457 transitions. Word has length 155 [2019-10-13 23:08:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:34,699 INFO L462 AbstractCegarLoop]: Abstraction has 371 states and 457 transitions. [2019-10-13 23:08:34,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:08:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 457 transitions. [2019-10-13 23:08:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:08:34,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:34,703 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:34,704 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:34,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:34,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1266320439, now seen corresponding path program 1 times [2019-10-13 23:08:34,704 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:34,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628536078] [2019-10-13 23:08:34,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:34,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:35,459 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:08:35,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628536078] [2019-10-13 23:08:35,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:35,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-13 23:08:35,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877955738] [2019-10-13 23:08:35,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-13 23:08:35,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:35,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-13 23:08:35,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2019-10-13 23:08:35,462 INFO L87 Difference]: Start difference. First operand 371 states and 457 transitions. Second operand 27 states. [2019-10-13 23:08:45,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:45,411 INFO L93 Difference]: Finished difference Result 735 states and 893 transitions. [2019-10-13 23:08:45,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 23:08:45,412 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 160 [2019-10-13 23:08:45,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:45,424 INFO L225 Difference]: With dead ends: 735 [2019-10-13 23:08:45,425 INFO L226 Difference]: Without dead ends: 583 [2019-10-13 23:08:45,427 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=2607, Unknown=0, NotChecked=0, Total=2862 [2019-10-13 23:08:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-13 23:08:45,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 574. [2019-10-13 23:08:45,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-13 23:08:45,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 701 transitions. [2019-10-13 23:08:45,482 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 701 transitions. Word has length 160 [2019-10-13 23:08:45,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:45,482 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 701 transitions. [2019-10-13 23:08:45,483 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-13 23:08:45,483 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 701 transitions. [2019-10-13 23:08:45,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 23:08:45,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:45,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:08:45,486 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:45,487 INFO L82 PathProgramCache]: Analyzing trace with hash -81914695, now seen corresponding path program 1 times [2019-10-13 23:08:45,487 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:45,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978202537] [2019-10-13 23:08:45,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:45,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:45,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:45,944 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 23:08:45,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978202537] [2019-10-13 23:08:45,945 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:08:45,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-13 23:08:45,945 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419301277] [2019-10-13 23:08:45,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-13 23:08:45,946 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:08:45,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-13 23:08:45,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:08:45,947 INFO L87 Difference]: Start difference. First operand 574 states and 701 transitions. Second operand 23 states. [2019-10-13 23:08:54,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:08:54,743 INFO L93 Difference]: Finished difference Result 1204 states and 1427 transitions. [2019-10-13 23:08:54,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 23:08:54,743 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 181 [2019-10-13 23:08:54,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:08:54,755 INFO L225 Difference]: With dead ends: 1204 [2019-10-13 23:08:54,756 INFO L226 Difference]: Without dead ends: 865 [2019-10-13 23:08:54,758 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=2023, Unknown=0, NotChecked=0, Total=2256 [2019-10-13 23:08:54,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2019-10-13 23:08:54,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 850. [2019-10-13 23:08:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 850 states. [2019-10-13 23:08:54,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1014 transitions. [2019-10-13 23:08:54,818 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1014 transitions. Word has length 181 [2019-10-13 23:08:54,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:08:54,820 INFO L462 AbstractCegarLoop]: Abstraction has 850 states and 1014 transitions. [2019-10-13 23:08:54,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-13 23:08:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1014 transitions. [2019-10-13 23:08:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 23:08:54,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:08:54,824 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, 1, 1, 1, 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 23:08:54,824 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:08:54,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:08:54,825 INFO L82 PathProgramCache]: Analyzing trace with hash 805883352, now seen corresponding path program 1 times [2019-10-13 23:08:54,825 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:08:54,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359970106] [2019-10-13 23:08:54,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:54,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:08:54,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:08:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:08:55,861 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359970106] [2019-10-13 23:08:55,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748693584] [2019-10-13 23:08:55,862 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 23:08:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:08:56,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 2669 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:08:56,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:08:56,622 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:08:56,622 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:08:56,919 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:08:56,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2018944480] [2019-10-13 23:08:56,951 INFO L162 IcfgInterpreter]: Started Sifa with 172 locations of interest [2019-10-13 23:08:56,951 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:08:56,958 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:08:56,969 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:08:56,970 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs