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_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:02,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:02,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:02,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:02,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:02,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:02,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:02,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:02,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:02,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:02,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:02,615 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:02,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:02,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:02,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:02,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:02,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:02,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:02,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:02,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:02,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:02,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:02,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:02,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:02,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:02,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:02,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:02,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:02,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:02,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:02,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:02,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:02,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:02,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:02,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:02,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:02,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:02,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:02,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:02,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:02,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:02,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:12:02,676 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:02,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:02,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:02,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:02,679 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:02,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:02,680 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:02,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:02,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:02,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:02,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:02,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:02,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:02,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:02,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:02,683 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:02,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:02,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:02,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:02,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:02,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:02,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:02,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:02,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:02,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:02,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:02,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:02,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:02,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:12:02,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:02,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:02,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:02,994 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:02,994 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:02,995 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-13 23:12:03,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c56adec5/fb40a6e082f14637b3edc856ebb834b6/FLAGa353e45a5 [2019-10-13 23:12:03,700 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:03,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-13 23:12:03,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c56adec5/fb40a6e082f14637b3edc856ebb834b6/FLAGa353e45a5 [2019-10-13 23:12:03,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c56adec5/fb40a6e082f14637b3edc856ebb834b6 [2019-10-13 23:12:03,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:03,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:03,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:03,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:03,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:03,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:03" (1/1) ... [2019-10-13 23:12:03,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:03, skipping insertion in model container [2019-10-13 23:12:03,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:03" (1/1) ... [2019-10-13 23:12:03,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:04,041 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:04,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:04,913 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:05,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:05,220 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:05,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05 WrapperNode [2019-10-13 23:12:05,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:05,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:05,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:05,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:05,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... [2019-10-13 23:12:05,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:05,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:05,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:05,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:05,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:05,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:12:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:12:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:05,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:05,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:05,555 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:05,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:05,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:05,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:05,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:05,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:05,564 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:05,566 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:05,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:05,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:05,573 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:05,574 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:05,575 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:05,577 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:05,578 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:05,579 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:05,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:05,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:05,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:05,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:05,585 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:05,588 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:05,589 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:05,594 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:05,595 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:12:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:12:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 23:12:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:05,621 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:05,622 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:05,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:10,296 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:10,296 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:10,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:10 BoogieIcfgContainer [2019-10-13 23:12:10,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:10,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:10,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:10,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:10,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:03" (1/3) ... [2019-10-13 23:12:10,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68736630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:10, skipping insertion in model container [2019-10-13 23:12:10,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:05" (2/3) ... [2019-10-13 23:12:10,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68736630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:10, skipping insertion in model container [2019-10-13 23:12:10,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:10" (3/3) ... [2019-10-13 23:12:10,320 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-10-13 23:12:10,335 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:10,346 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:10,357 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:10,397 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:10,398 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:10,398 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:10,398 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:10,398 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:10,398 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:10,398 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:10,399 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states. [2019-10-13 23:12:10,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:12:10,462 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:10,464 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] [2019-10-13 23:12:10,469 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:10,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:10,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1428529733, now seen corresponding path program 1 times [2019-10-13 23:12:10,489 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:10,489 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543376902] [2019-10-13 23:12:10,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:10,490 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:10,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:11,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543376902] [2019-10-13 23:12:11,194 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:11,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:11,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558149500] [2019-10-13 23:12:11,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:11,201 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:11,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:11,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:11,219 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 2 states. [2019-10-13 23:12:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:11,296 INFO L93 Difference]: Finished difference Result 661 states and 784 transitions. [2019-10-13 23:12:11,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:11,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-13 23:12:11,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:11,321 INFO L225 Difference]: With dead ends: 661 [2019-10-13 23:12:11,322 INFO L226 Difference]: Without dead ends: 409 [2019-10-13 23:12:11,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:11,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-13 23:12:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-10-13 23:12:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-13 23:12:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 482 transitions. [2019-10-13 23:12:11,441 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 482 transitions. Word has length 145 [2019-10-13 23:12:11,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:11,445 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 482 transitions. [2019-10-13 23:12:11,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 482 transitions. [2019-10-13 23:12:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:12:11,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:11,458 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] [2019-10-13 23:12:11,458 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:11,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:11,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1941277862, now seen corresponding path program 1 times [2019-10-13 23:12:11,460 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:11,460 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131342387] [2019-10-13 23:12:11,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:11,461 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:11,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:11,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131342387] [2019-10-13 23:12:11,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:11,937 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:11,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987768687] [2019-10-13 23:12:11,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:11,939 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:11,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:11,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:11,940 INFO L87 Difference]: Start difference. First operand 409 states and 482 transitions. Second operand 3 states. [2019-10-13 23:12:12,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:12,017 INFO L93 Difference]: Finished difference Result 646 states and 752 transitions. [2019-10-13 23:12:12,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:12,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 23:12:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:12,028 INFO L225 Difference]: With dead ends: 646 [2019-10-13 23:12:12,028 INFO L226 Difference]: Without dead ends: 411 [2019-10-13 23:12:12,034 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2019-10-13 23:12:12,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2019-10-13 23:12:12,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2019-10-13 23:12:12,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 484 transitions. [2019-10-13 23:12:12,090 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 484 transitions. Word has length 146 [2019-10-13 23:12:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:12,091 INFO L462 AbstractCegarLoop]: Abstraction has 411 states and 484 transitions. [2019-10-13 23:12:12,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 484 transitions. [2019-10-13 23:12:12,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 23:12:12,095 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:12,095 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] [2019-10-13 23:12:12,096 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:12,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2009493726, now seen corresponding path program 1 times [2019-10-13 23:12:12,096 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:12,097 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120353596] [2019-10-13 23:12:12,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,097 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:12,276 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120353596] [2019-10-13 23:12:12,277 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:12,277 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:12,277 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092146991] [2019-10-13 23:12:12,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:12,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:12,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:12,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:12,279 INFO L87 Difference]: Start difference. First operand 411 states and 484 transitions. Second operand 3 states. [2019-10-13 23:12:12,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:12,325 INFO L93 Difference]: Finished difference Result 806 states and 978 transitions. [2019-10-13 23:12:12,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:12,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-13 23:12:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:12,334 INFO L225 Difference]: With dead ends: 806 [2019-10-13 23:12:12,334 INFO L226 Difference]: Without dead ends: 453 [2019-10-13 23:12:12,337 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-13 23:12:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2019-10-13 23:12:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-13 23:12:12,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 555 transitions. [2019-10-13 23:12:12,379 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 555 transitions. Word has length 158 [2019-10-13 23:12:12,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:12,382 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 555 transitions. [2019-10-13 23:12:12,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:12,382 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 555 transitions. [2019-10-13 23:12:12,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:12:12,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:12,390 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:12,391 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:12,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1491507317, now seen corresponding path program 1 times [2019-10-13 23:12:12,392 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:12,395 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951200482] [2019-10-13 23:12:12,395 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,395 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:12,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:13,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:13,475 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951200482] [2019-10-13 23:12:13,475 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:13,475 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-13 23:12:13,476 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246992330] [2019-10-13 23:12:13,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-13 23:12:13,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:13,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-13 23:12:13,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:12:13,479 INFO L87 Difference]: Start difference. First operand 452 states and 555 transitions. Second operand 28 states. [2019-10-13 23:12:22,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:22,105 INFO L93 Difference]: Finished difference Result 978 states and 1192 transitions. [2019-10-13 23:12:22,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:12:22,106 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 159 [2019-10-13 23:12:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:22,116 INFO L225 Difference]: With dead ends: 978 [2019-10-13 23:12:22,117 INFO L226 Difference]: Without dead ends: 721 [2019-10-13 23:12:22,120 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=170, Invalid=1900, Unknown=0, NotChecked=0, Total=2070 [2019-10-13 23:12:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2019-10-13 23:12:22,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 709. [2019-10-13 23:12:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-13 23:12:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 861 transitions. [2019-10-13 23:12:22,185 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 861 transitions. Word has length 159 [2019-10-13 23:12:22,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:22,187 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 861 transitions. [2019-10-13 23:12:22,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-13 23:12:22,187 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 861 transitions. [2019-10-13 23:12:22,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:12:22,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:22,192 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] [2019-10-13 23:12:22,193 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash -682911635, now seen corresponding path program 1 times [2019-10-13 23:12:22,194 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:22,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129804253] [2019-10-13 23:12:22,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:22,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:22,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:22,478 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129804253] [2019-10-13 23:12:22,478 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:22,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:12:22,479 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014298364] [2019-10-13 23:12:22,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:12:22,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:22,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:12:22,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:12:22,482 INFO L87 Difference]: Start difference. First operand 709 states and 861 transitions. Second operand 10 states. [2019-10-13 23:12:22,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:22,558 INFO L93 Difference]: Finished difference Result 718 states and 872 transitions. [2019-10-13 23:12:22,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:12:22,558 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 163 [2019-10-13 23:12:22,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:22,566 INFO L225 Difference]: With dead ends: 718 [2019-10-13 23:12:22,567 INFO L226 Difference]: Without dead ends: 713 [2019-10-13 23:12:22,567 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:12:22,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2019-10-13 23:12:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2019-10-13 23:12:22,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2019-10-13 23:12:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 865 transitions. [2019-10-13 23:12:22,614 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 865 transitions. Word has length 163 [2019-10-13 23:12:22,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:22,616 INFO L462 AbstractCegarLoop]: Abstraction has 713 states and 865 transitions. [2019-10-13 23:12:22,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:12:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 865 transitions. [2019-10-13 23:12:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:12:22,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:22,620 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] [2019-10-13 23:12:22,620 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:22,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:22,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1922706522, now seen corresponding path program 1 times [2019-10-13 23:12:22,621 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:22,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900624552] [2019-10-13 23:12:22,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:22,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:22,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:23,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900624552] [2019-10-13 23:12:23,068 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:23,068 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:12:23,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991330196] [2019-10-13 23:12:23,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:12:23,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:23,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:12:23,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:12:23,070 INFO L87 Difference]: Start difference. First operand 713 states and 865 transitions. Second operand 14 states. [2019-10-13 23:12:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:26,695 INFO L93 Difference]: Finished difference Result 1543 states and 1848 transitions. [2019-10-13 23:12:26,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:12:26,697 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2019-10-13 23:12:26,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:26,706 INFO L225 Difference]: With dead ends: 1543 [2019-10-13 23:12:26,706 INFO L226 Difference]: Without dead ends: 1309 [2019-10-13 23:12:26,708 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:12:26,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2019-10-13 23:12:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1264. [2019-10-13 23:12:26,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1264 states. [2019-10-13 23:12:26,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1518 transitions. [2019-10-13 23:12:26,836 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 1518 transitions. Word has length 165 [2019-10-13 23:12:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:26,837 INFO L462 AbstractCegarLoop]: Abstraction has 1264 states and 1518 transitions. [2019-10-13 23:12:26,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:12:26,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 1518 transitions. [2019-10-13 23:12:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:12:26,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:26,841 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] [2019-10-13 23:12:26,842 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 621858291, now seen corresponding path program 1 times [2019-10-13 23:12:26,843 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:26,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973292910] [2019-10-13 23:12:26,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:26,843 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:26,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:12:26,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973292910] [2019-10-13 23:12:26,979 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:26,980 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:26,980 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360982216] [2019-10-13 23:12:26,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:26,981 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:26,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:26,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:26,981 INFO L87 Difference]: Start difference. First operand 1264 states and 1518 transitions. Second operand 3 states. [2019-10-13 23:12:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:27,053 INFO L93 Difference]: Finished difference Result 2582 states and 3169 transitions. [2019-10-13 23:12:27,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:27,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 23:12:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:27,062 INFO L225 Difference]: With dead ends: 2582 [2019-10-13 23:12:27,062 INFO L226 Difference]: Without dead ends: 1376 [2019-10-13 23:12:27,066 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:27,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2019-10-13 23:12:27,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1374. [2019-10-13 23:12:27,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1374 states. [2019-10-13 23:12:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1709 transitions. [2019-10-13 23:12:27,144 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1709 transitions. Word has length 180 [2019-10-13 23:12:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:27,145 INFO L462 AbstractCegarLoop]: Abstraction has 1374 states and 1709 transitions. [2019-10-13 23:12:27,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1709 transitions. [2019-10-13 23:12:27,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 23:12:27,150 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:27,150 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:27,150 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:27,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:27,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1182325413, now seen corresponding path program 1 times [2019-10-13 23:12:27,151 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:27,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879338759] [2019-10-13 23:12:27,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:27,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:27,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 23:12:27,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879338759] [2019-10-13 23:12:27,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731501290] [2019-10-13 23:12:27,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:12:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:28,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 2835 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:28,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:28,388 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:28,389 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:12:28,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1003344109] [2019-10-13 23:12:28,688 INFO L162 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-10-13 23:12:28,688 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:28,696 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:28,718 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:28,719 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs