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_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:56,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:56,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:56,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:56,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:56,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:56,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:56,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:56,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:56,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:56,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:56,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:56,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:56,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:56,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:56,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:56,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:56,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:56,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:56,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:56,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:56,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:56,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:56,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:56,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:56,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:56,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:56,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:56,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:56,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:56,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:56,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:56,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:56,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:56,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:56,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:56,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:56,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:56,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:56,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:56,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:56,857 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 [2019-10-15 03:15:56,871 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:56,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:56,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:56,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:56,873 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:56,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:56,874 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:56,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:56,874 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:56,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:56,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:56,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:56,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:56,875 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:56,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:56,875 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:56,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:56,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:56,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:56,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:56,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:56,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:56,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:56,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:56,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:56,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:56,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:56,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:56,878 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 [2019-10-15 03:15:57,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:57,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:57,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:57,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:57,212 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:57,213 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-15 03:15:57,293 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2c81f93/a345960cc3664f94b8a4b2ca33fc21b1/FLAG1f04bce11 [2019-10-15 03:15:57,925 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:57,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-15 03:15:57,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2c81f93/a345960cc3664f94b8a4b2ca33fc21b1/FLAG1f04bce11 [2019-10-15 03:15:58,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2c81f93/a345960cc3664f94b8a4b2ca33fc21b1 [2019-10-15 03:15:58,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:58,131 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:58,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:58,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:58,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:58,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4563917c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:58, skipping insertion in model container [2019-10-15 03:15:58,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:58" (1/1) ... [2019-10-15 03:15:58,148 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:58,245 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:59,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:59,083 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:59,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:59,286 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:59,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59 WrapperNode [2019-10-15 03:15:59,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:59,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:59,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:59,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:59,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (1/1) ... [2019-10-15 03:15:59,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:59,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:59,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:59,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:59,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (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 [2019-10-15 03:15:59,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:59,558 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 03:15:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:15:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:59,572 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:59,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:59,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:59,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:59,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:59,577 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:59,578 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:59,579 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:59,580 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:59,581 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:59,582 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:59,583 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:59,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:59,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:59,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:59,587 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:59,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:59,588 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:59,589 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:59,592 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:59,593 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 03:15:59,597 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:15:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:59,598 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:59,599 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:59,600 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:59,608 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:59,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:59,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:59,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:59,612 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:59,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:59,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:59,615 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:59,616 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:59,617 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:16:04,295 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:16:04,296 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:16:04,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:04 BoogieIcfgContainer [2019-10-15 03:16:04,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:16:04,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:16:04,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:16:04,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:16:04,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:58" (1/3) ... [2019-10-15 03:16:04,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1d82f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:04, skipping insertion in model container [2019-10-15 03:16:04,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:59" (2/3) ... [2019-10-15 03:16:04,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f1d82f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:16:04, skipping insertion in model container [2019-10-15 03:16:04,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:16:04" (3/3) ... [2019-10-15 03:16:04,306 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-10-15 03:16:04,317 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:16:04,334 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:16:04,346 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:16:04,379 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:16:04,379 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:16:04,379 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:16:04,379 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:16:04,380 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:16:04,380 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:16:04,380 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:16:04,380 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:16:04,409 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states. [2019-10-15 03:16:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 03:16:04,427 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:04,428 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:04,431 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:04,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:04,437 INFO L82 PathProgramCache]: Analyzing trace with hash 275868644, now seen corresponding path program 1 times [2019-10-15 03:16:04,448 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:04,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516675705] [2019-10-15 03:16:04,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:04,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:05,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516675705] [2019-10-15 03:16:05,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:05,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:16:05,142 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063044767] [2019-10-15 03:16:05,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:16:05,151 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:05,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:16:05,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:16:05,169 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 2 states. [2019-10-15 03:16:05,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,282 INFO L93 Difference]: Finished difference Result 642 states and 763 transitions. [2019-10-15 03:16:05,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:16:05,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-15 03:16:05,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,329 INFO L225 Difference]: With dead ends: 642 [2019-10-15 03:16:05,330 INFO L226 Difference]: Without dead ends: 396 [2019-10-15 03:16:05,344 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 [2019-10-15 03:16:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-10-15 03:16:05,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2019-10-15 03:16:05,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-10-15 03:16:05,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 469 transitions. [2019-10-15 03:16:05,485 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 469 transitions. Word has length 147 [2019-10-15 03:16:05,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:05,488 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 469 transitions. [2019-10-15 03:16:05,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:16:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 469 transitions. [2019-10-15 03:16:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-15 03:16:05,497 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:05,497 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:16:05,498 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:05,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:05,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1868310216, now seen corresponding path program 1 times [2019-10-15 03:16:05,498 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:05,499 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986971400] [2019-10-15 03:16:05,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:05,860 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986971400] [2019-10-15 03:16:05,860 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:05,860 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:05,861 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819186524] [2019-10-15 03:16:05,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:05,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:05,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:05,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:05,865 INFO L87 Difference]: Start difference. First operand 396 states and 469 transitions. Second operand 3 states. [2019-10-15 03:16:05,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,921 INFO L93 Difference]: Finished difference Result 627 states and 733 transitions. [2019-10-15 03:16:05,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:05,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-15 03:16:05,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,926 INFO L225 Difference]: With dead ends: 627 [2019-10-15 03:16:05,926 INFO L226 Difference]: Without dead ends: 398 [2019-10-15 03:16:05,928 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 [2019-10-15 03:16:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-15 03:16:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-10-15 03:16:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-15 03:16:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 471 transitions. [2019-10-15 03:16:05,957 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 471 transitions. Word has length 148 [2019-10-15 03:16:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:05,958 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 471 transitions. [2019-10-15 03:16:05,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 471 transitions. [2019-10-15 03:16:05,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 03:16:05,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:05,964 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] [2019-10-15 03:16:05,966 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:05,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:05,966 INFO L82 PathProgramCache]: Analyzing trace with hash -150332791, now seen corresponding path program 1 times [2019-10-15 03:16:05,966 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:05,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231462257] [2019-10-15 03:16:05,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:06,225 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231462257] [2019-10-15 03:16:06,225 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:06,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:06,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518016711] [2019-10-15 03:16:06,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:06,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:06,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:06,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:06,228 INFO L87 Difference]: Start difference. First operand 398 states and 471 transitions. Second operand 3 states. [2019-10-15 03:16:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:06,292 INFO L93 Difference]: Finished difference Result 778 states and 949 transitions. [2019-10-15 03:16:06,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:06,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-15 03:16:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:06,303 INFO L225 Difference]: With dead ends: 778 [2019-10-15 03:16:06,303 INFO L226 Difference]: Without dead ends: 438 [2019-10-15 03:16:06,306 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 [2019-10-15 03:16:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-15 03:16:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 437. [2019-10-15 03:16:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-15 03:16:06,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 539 transitions. [2019-10-15 03:16:06,352 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 539 transitions. Word has length 153 [2019-10-15 03:16:06,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:06,353 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 539 transitions. [2019-10-15 03:16:06,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 539 transitions. [2019-10-15 03:16:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 03:16:06,362 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:06,363 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] [2019-10-15 03:16:06,363 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1314254042, now seen corresponding path program 1 times [2019-10-15 03:16:06,364 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:06,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438385596] [2019-10-15 03:16:06,365 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:06,365 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:06,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:07,057 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438385596] [2019-10-15 03:16:07,057 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:07,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 03:16:07,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175649366] [2019-10-15 03:16:07,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 03:16:07,059 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:07,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 03:16:07,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:16:07,060 INFO L87 Difference]: Start difference. First operand 437 states and 539 transitions. Second operand 24 states. [2019-10-15 03:16:15,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:15,703 INFO L93 Difference]: Finished difference Result 1242 states and 1483 transitions. [2019-10-15 03:16:15,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-15 03:16:15,703 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 154 [2019-10-15 03:16:15,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:15,713 INFO L225 Difference]: With dead ends: 1242 [2019-10-15 03:16:15,713 INFO L226 Difference]: Without dead ends: 885 [2019-10-15 03:16:15,716 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-10-15 03:16:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2019-10-15 03:16:15,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 876. [2019-10-15 03:16:15,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-10-15 03:16:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1039 transitions. [2019-10-15 03:16:15,786 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1039 transitions. Word has length 154 [2019-10-15 03:16:15,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:15,788 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1039 transitions. [2019-10-15 03:16:15,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 03:16:15,788 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1039 transitions. [2019-10-15 03:16:15,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:16:15,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:15,793 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:15,794 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:15,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1356524406, now seen corresponding path program 1 times [2019-10-15 03:16:15,794 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:15,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186898080] [2019-10-15 03:16:15,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:16:16,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186898080] [2019-10-15 03:16:16,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:16,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:16:16,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657327486] [2019-10-15 03:16:16,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:16:16,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:16,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:16:16,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:16:16,405 INFO L87 Difference]: Start difference. First operand 876 states and 1039 transitions. Second operand 14 states. [2019-10-15 03:16:20,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:20,949 INFO L93 Difference]: Finished difference Result 2008 states and 2350 transitions. [2019-10-15 03:16:20,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:16:20,949 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 160 [2019-10-15 03:16:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:20,960 INFO L225 Difference]: With dead ends: 2008 [2019-10-15 03:16:20,960 INFO L226 Difference]: Without dead ends: 1436 [2019-10-15 03:16:20,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:16:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2019-10-15 03:16:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1366. [2019-10-15 03:16:21,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2019-10-15 03:16:21,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1604 transitions. [2019-10-15 03:16:21,052 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1604 transitions. Word has length 160 [2019-10-15 03:16:21,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:21,053 INFO L462 AbstractCegarLoop]: Abstraction has 1366 states and 1604 transitions. [2019-10-15 03:16:21,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:16:21,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1604 transitions. [2019-10-15 03:16:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 03:16:21,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:21,057 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] [2019-10-15 03:16:21,057 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:21,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:21,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1467084693, now seen corresponding path program 1 times [2019-10-15 03:16:21,058 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:21,058 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036882516] [2019-10-15 03:16:21,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:21,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036882516] [2019-10-15 03:16:21,232 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:21,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:21,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787166785] [2019-10-15 03:16:21,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:21,233 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:21,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:21,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:21,234 INFO L87 Difference]: Start difference. First operand 1366 states and 1604 transitions. Second operand 3 states. [2019-10-15 03:16:21,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:21,302 INFO L93 Difference]: Finished difference Result 2786 states and 3341 transitions. [2019-10-15 03:16:21,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:21,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-15 03:16:21,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:21,312 INFO L225 Difference]: With dead ends: 2786 [2019-10-15 03:16:21,312 INFO L226 Difference]: Without dead ends: 1478 [2019-10-15 03:16:21,317 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 [2019-10-15 03:16:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-10-15 03:16:21,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1476. [2019-10-15 03:16:21,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2019-10-15 03:16:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1795 transitions. [2019-10-15 03:16:21,409 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1795 transitions. Word has length 182 [2019-10-15 03:16:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:21,411 INFO L462 AbstractCegarLoop]: Abstraction has 1476 states and 1795 transitions. [2019-10-15 03:16:21,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:21,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1795 transitions. [2019-10-15 03:16:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-15 03:16:21,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:21,416 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:21,416 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:21,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:21,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1409850039, now seen corresponding path program 1 times [2019-10-15 03:16:21,417 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:21,417 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675471452] [2019-10-15 03:16:21,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-15 03:16:21,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675471452] [2019-10-15 03:16:21,586 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:21,586 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:21,586 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468345174] [2019-10-15 03:16:21,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:21,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:21,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:21,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:21,588 INFO L87 Difference]: Start difference. First operand 1476 states and 1795 transitions. Second operand 3 states. [2019-10-15 03:16:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:21,664 INFO L93 Difference]: Finished difference Result 3101 states and 3890 transitions. [2019-10-15 03:16:21,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:21,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2019-10-15 03:16:21,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:21,674 INFO L225 Difference]: With dead ends: 3101 [2019-10-15 03:16:21,674 INFO L226 Difference]: Without dead ends: 1683 [2019-10-15 03:16:21,679 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 [2019-10-15 03:16:21,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2019-10-15 03:16:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1681. [2019-10-15 03:16:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2019-10-15 03:16:21,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2150 transitions. [2019-10-15 03:16:21,776 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2150 transitions. Word has length 188 [2019-10-15 03:16:21,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:21,778 INFO L462 AbstractCegarLoop]: Abstraction has 1681 states and 2150 transitions. [2019-10-15 03:16:21,778 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2150 transitions. [2019-10-15 03:16:21,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 03:16:21,784 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:21,784 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] [2019-10-15 03:16:21,785 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:21,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:21,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1339535145, now seen corresponding path program 1 times [2019-10-15 03:16:21,785 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:21,786 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783083721] [2019-10-15 03:16:21,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:21,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:16:22,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783083721] [2019-10-15 03:16:22,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:22,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 03:16:22,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168150721] [2019-10-15 03:16:22,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 03:16:22,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:22,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 03:16:22,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2019-10-15 03:16:22,512 INFO L87 Difference]: Start difference. First operand 1681 states and 2150 transitions. Second operand 17 states. [2019-10-15 03:16:29,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:29,806 INFO L93 Difference]: Finished difference Result 3792 states and 4984 transitions. [2019-10-15 03:16:29,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:16:29,807 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 184 [2019-10-15 03:16:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:29,823 INFO L225 Difference]: With dead ends: 3792 [2019-10-15 03:16:29,823 INFO L226 Difference]: Without dead ends: 2746 [2019-10-15 03:16:29,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 10 SyntacticMatches, 19 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=280, Invalid=1526, Unknown=0, NotChecked=0, Total=1806 [2019-10-15 03:16:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2019-10-15 03:16:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2075. [2019-10-15 03:16:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2019-10-15 03:16:29,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2843 transitions. [2019-10-15 03:16:29,961 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2843 transitions. Word has length 184 [2019-10-15 03:16:29,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:29,961 INFO L462 AbstractCegarLoop]: Abstraction has 2075 states and 2843 transitions. [2019-10-15 03:16:29,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 03:16:29,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2843 transitions. [2019-10-15 03:16:29,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 03:16:29,970 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:29,970 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] [2019-10-15 03:16:29,971 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:29,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:29,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1277033729, now seen corresponding path program 1 times [2019-10-15 03:16:29,971 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:29,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271246867] [2019-10-15 03:16:29,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:29,972 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:29,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:30,113 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:30,114 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271246867] [2019-10-15 03:16:30,115 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:30,115 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:30,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537259442] [2019-10-15 03:16:30,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:30,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:30,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:30,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:30,118 INFO L87 Difference]: Start difference. First operand 2075 states and 2843 transitions. Second operand 3 states. [2019-10-15 03:16:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:30,252 INFO L93 Difference]: Finished difference Result 4373 states and 6142 transitions. [2019-10-15 03:16:30,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:30,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-15 03:16:30,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:30,269 INFO L225 Difference]: With dead ends: 4373 [2019-10-15 03:16:30,269 INFO L226 Difference]: Without dead ends: 2360 [2019-10-15 03:16:30,280 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 [2019-10-15 03:16:30,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2019-10-15 03:16:30,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2359. [2019-10-15 03:16:30,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2019-10-15 03:16:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3343 transitions. [2019-10-15 03:16:30,428 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3343 transitions. Word has length 185 [2019-10-15 03:16:30,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:30,428 INFO L462 AbstractCegarLoop]: Abstraction has 2359 states and 3343 transitions. [2019-10-15 03:16:30,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3343 transitions. [2019-10-15 03:16:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-15 03:16:30,440 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:30,441 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] [2019-10-15 03:16:30,441 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:30,441 INFO L82 PathProgramCache]: Analyzing trace with hash -413198012, now seen corresponding path program 1 times [2019-10-15 03:16:30,442 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:30,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801127201] [2019-10-15 03:16:30,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:30,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:30,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:30,799 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:16:30,799 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801127201] [2019-10-15 03:16:30,800 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:30,800 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:30,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31914488] [2019-10-15 03:16:30,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:30,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:30,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:30,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:30,802 INFO L87 Difference]: Start difference. First operand 2359 states and 3343 transitions. Second operand 12 states.