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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:06,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:06,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:06,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:06,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:06,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:06,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:06,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:06,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:06,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:06,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:06,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:06,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:06,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:06,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:06,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:06,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:06,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:06,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:06,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:06,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:06,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:06,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:06,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:06,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:06,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:06,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:06,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:06,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:06,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:06,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:06,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:06,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:06,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:06,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:06,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:06,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:06,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:06,848 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:06,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:06,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:06,851 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 21:17:06,872 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:06,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:06,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:06,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:06,877 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:06,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:06,877 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:06,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:06,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:06,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:06,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:06,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:06,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:06,878 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:06,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:06,879 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:06,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:06,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:06,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:06,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:06,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:06,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:06,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:06,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:06,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:06,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:06,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:06,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:06,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:07,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:07,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:07,173 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:07,175 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:07,175 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:07,176 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-13 21:17:07,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf26f9ac/496cf7636b174592a92962aa1eece058/FLAG9864214ca [2019-10-13 21:17:07,928 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:07,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-13 21:17:07,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf26f9ac/496cf7636b174592a92962aa1eece058/FLAG9864214ca [2019-10-13 21:17:08,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf26f9ac/496cf7636b174592a92962aa1eece058 [2019-10-13 21:17:08,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:08,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:08,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:08,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:08,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:08,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112cb494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08, skipping insertion in model container [2019-10-13 21:17:08,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,207 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:08,284 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:09,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:09,111 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:09,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:09,325 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:09,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09 WrapperNode [2019-10-13 21:17:09,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:09,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:09,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:09,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:09,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (1/1) ... [2019-10-13 21:17:09,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:09,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:09,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:09,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:09,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (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 21:17:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:09,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:09,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:11,719 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:11,719 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:11,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:11 BoogieIcfgContainer [2019-10-13 21:17:11,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:11,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:11,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:11,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:11,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:08" (1/3) ... [2019-10-13 21:17:11,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2073b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:11, skipping insertion in model container [2019-10-13 21:17:11,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:09" (2/3) ... [2019-10-13 21:17:11,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2073b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:11, skipping insertion in model container [2019-10-13 21:17:11,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:11" (3/3) ... [2019-10-13 21:17:11,732 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2019-10-13 21:17:11,742 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:11,756 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:11,768 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:11,814 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:11,814 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:11,817 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:11,817 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:11,818 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:11,818 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:11,818 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:11,818 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states. [2019-10-13 21:17:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 21:17:11,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:11,912 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-13 21:17:11,916 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:11,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:11,923 INFO L82 PathProgramCache]: Analyzing trace with hash 430115854, now seen corresponding path program 1 times [2019-10-13 21:17:11,934 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:11,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769086171] [2019-10-13 21:17:11,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,935 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,700 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:12,701 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769086171] [2019-10-13 21:17:12,702 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:12,702 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:12,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208916360] [2019-10-13 21:17:12,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:12,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:12,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:12,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:12,730 INFO L87 Difference]: Start difference. First operand 609 states. Second operand 2 states. [2019-10-13 21:17:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:12,828 INFO L93 Difference]: Finished difference Result 893 states and 1209 transitions. [2019-10-13 21:17:12,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:12,829 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-13 21:17:12,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:12,854 INFO L225 Difference]: With dead ends: 893 [2019-10-13 21:17:12,854 INFO L226 Difference]: Without dead ends: 580 [2019-10-13 21:17:12,862 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 21:17:12,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-13 21:17:12,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-13 21:17:12,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-13 21:17:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 790 transitions. [2019-10-13 21:17:12,969 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 790 transitions. Word has length 185 [2019-10-13 21:17:12,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,972 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 790 transitions. [2019-10-13 21:17:12,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:12,972 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 790 transitions. [2019-10-13 21:17:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 21:17:12,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,979 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-10-13 21:17:12,981 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1045148671, now seen corresponding path program 1 times [2019-10-13 21:17:12,982 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308154305] [2019-10-13 21:17:12,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:13,256 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:13,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308154305] [2019-10-13 21:17:13,257 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:13,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:13,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647090089] [2019-10-13 21:17:13,267 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:13,267 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:13,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:13,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:13,268 INFO L87 Difference]: Start difference. First operand 580 states and 790 transitions. Second operand 3 states. [2019-10-13 21:17:13,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:13,368 INFO L93 Difference]: Finished difference Result 876 states and 1174 transitions. [2019-10-13 21:17:13,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:13,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-13 21:17:13,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:13,376 INFO L225 Difference]: With dead ends: 876 [2019-10-13 21:17:13,377 INFO L226 Difference]: Without dead ends: 583 [2019-10-13 21:17:13,384 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 21:17:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-13 21:17:13,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 582. [2019-10-13 21:17:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-13 21:17:13,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 792 transitions. [2019-10-13 21:17:13,431 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 792 transitions. Word has length 186 [2019-10-13 21:17:13,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:13,432 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 792 transitions. [2019-10-13 21:17:13,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:13,433 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 792 transitions. [2019-10-13 21:17:13,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:13,439 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:13,440 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1] [2019-10-13 21:17:13,441 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:13,442 INFO L82 PathProgramCache]: Analyzing trace with hash -637450832, now seen corresponding path program 1 times [2019-10-13 21:17:13,442 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:13,442 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055002163] [2019-10-13 21:17:13,442 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:13,608 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:13,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055002163] [2019-10-13 21:17:13,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:13,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:13,609 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770690900] [2019-10-13 21:17:13,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:13,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:13,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:13,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:13,611 INFO L87 Difference]: Start difference. First operand 582 states and 792 transitions. Second operand 3 states. [2019-10-13 21:17:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:13,676 INFO L93 Difference]: Finished difference Result 1144 states and 1588 transitions. [2019-10-13 21:17:13,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:13,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-13 21:17:13,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:13,688 INFO L225 Difference]: With dead ends: 1144 [2019-10-13 21:17:13,688 INFO L226 Difference]: Without dead ends: 627 [2019-10-13 21:17:13,691 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 21:17:13,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-10-13 21:17:13,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 626. [2019-10-13 21:17:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2019-10-13 21:17:13,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 867 transitions. [2019-10-13 21:17:13,754 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 867 transitions. Word has length 198 [2019-10-13 21:17:13,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:13,755 INFO L462 AbstractCegarLoop]: Abstraction has 626 states and 867 transitions. [2019-10-13 21:17:13,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:13,755 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 867 transitions. [2019-10-13 21:17:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:17:13,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:13,768 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1] [2019-10-13 21:17:13,774 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:13,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:13,775 INFO L82 PathProgramCache]: Analyzing trace with hash 785310459, now seen corresponding path program 1 times [2019-10-13 21:17:13,775 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:13,776 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965933741] [2019-10-13 21:17:13,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,776 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:13,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,167 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:14,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965933741] [2019-10-13 21:17:14,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:14,168 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:14,168 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975878220] [2019-10-13 21:17:14,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:14,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:14,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:14,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:14,169 INFO L87 Difference]: Start difference. First operand 626 states and 867 transitions. Second operand 3 states. [2019-10-13 21:17:14,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:14,216 INFO L93 Difference]: Finished difference Result 1273 states and 1808 transitions. [2019-10-13 21:17:14,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:14,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 21:17:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:14,224 INFO L225 Difference]: With dead ends: 1273 [2019-10-13 21:17:14,224 INFO L226 Difference]: Without dead ends: 712 [2019-10-13 21:17:14,226 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 21:17:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2019-10-13 21:17:14,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 711. [2019-10-13 21:17:14,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2019-10-13 21:17:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1011 transitions. [2019-10-13 21:17:14,266 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1011 transitions. Word has length 199 [2019-10-13 21:17:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:14,267 INFO L462 AbstractCegarLoop]: Abstraction has 711 states and 1011 transitions. [2019-10-13 21:17:14,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:14,268 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1011 transitions. [2019-10-13 21:17:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:17:14,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:14,273 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1] [2019-10-13 21:17:14,273 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:14,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:14,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1620732756, now seen corresponding path program 1 times [2019-10-13 21:17:14,274 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:14,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089741103] [2019-10-13 21:17:14,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,275 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,275 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,702 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:14,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089741103] [2019-10-13 21:17:14,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:14,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:14,704 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029521986] [2019-10-13 21:17:14,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:14,705 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:14,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:14,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:14,706 INFO L87 Difference]: Start difference. First operand 711 states and 1011 transitions. Second operand 11 states. [2019-10-13 21:17:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,111 INFO L93 Difference]: Finished difference Result 3178 states and 4511 transitions. [2019-10-13 21:17:21,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:21,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2019-10-13 21:17:21,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,134 INFO L225 Difference]: With dead ends: 3178 [2019-10-13 21:17:21,134 INFO L226 Difference]: Without dead ends: 2898 [2019-10-13 21:17:21,138 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2019-10-13 21:17:21,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2877. [2019-10-13 21:17:21,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2877 states. [2019-10-13 21:17:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4036 transitions. [2019-10-13 21:17:21,334 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4036 transitions. Word has length 202 [2019-10-13 21:17:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:21,338 INFO L462 AbstractCegarLoop]: Abstraction has 2877 states and 4036 transitions. [2019-10-13 21:17:21,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4036 transitions. [2019-10-13 21:17:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:21,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:21,343 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1] [2019-10-13 21:17:21,344 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:21,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:21,344 INFO L82 PathProgramCache]: Analyzing trace with hash 246930665, now seen corresponding path program 1 times [2019-10-13 21:17:21,344 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:21,344 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456821866] [2019-10-13 21:17:21,345 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,345 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:21,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:21,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456821866] [2019-10-13 21:17:21,687 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:21,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:21,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275129754] [2019-10-13 21:17:21,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:21,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:21,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:21,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:21,689 INFO L87 Difference]: Start difference. First operand 2877 states and 4036 transitions. Second operand 18 states. [2019-10-13 21:17:22,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,295 INFO L93 Difference]: Finished difference Result 5358 states and 7607 transitions. [2019-10-13 21:17:22,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:22,295 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 203 [2019-10-13 21:17:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,315 INFO L225 Difference]: With dead ends: 5358 [2019-10-13 21:17:22,315 INFO L226 Difference]: Without dead ends: 2894 [2019-10-13 21:17:22,325 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2019-10-13 21:17:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2892. [2019-10-13 21:17:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2892 states. [2019-10-13 21:17:22,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 4041 transitions. [2019-10-13 21:17:22,554 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 4041 transitions. Word has length 203 [2019-10-13 21:17:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,554 INFO L462 AbstractCegarLoop]: Abstraction has 2892 states and 4041 transitions. [2019-10-13 21:17:22,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 4041 transitions. [2019-10-13 21:17:22,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:17:22,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,560 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:22,560 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1013825460, now seen corresponding path program 1 times [2019-10-13 21:17:22,561 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517890066] [2019-10-13 21:17:22,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:22,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517890066] [2019-10-13 21:17:22,770 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:22,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213391532] [2019-10-13 21:17:22,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:22,772 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:22,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:22,773 INFO L87 Difference]: Start difference. First operand 2892 states and 4041 transitions. Second operand 6 states. [2019-10-13 21:17:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:23,547 INFO L93 Difference]: Finished difference Result 8304 states and 11749 transitions. [2019-10-13 21:17:23,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:23,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2019-10-13 21:17:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:23,589 INFO L225 Difference]: With dead ends: 8304 [2019-10-13 21:17:23,590 INFO L226 Difference]: Without dead ends: 5871 [2019-10-13 21:17:23,602 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5871 states. [2019-10-13 21:17:23,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5871 to 5800. [2019-10-13 21:17:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5800 states. [2019-10-13 21:17:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 8205 transitions. [2019-10-13 21:17:23,930 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 8205 transitions. Word has length 212 [2019-10-13 21:17:23,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:23,931 INFO L462 AbstractCegarLoop]: Abstraction has 5800 states and 8205 transitions. [2019-10-13 21:17:23,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:23,931 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 8205 transitions. [2019-10-13 21:17:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:17:23,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,941 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:23,942 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1460198811, now seen corresponding path program 1 times [2019-10-13 21:17:23,943 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059239221] [2019-10-13 21:17:23,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:24,278 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059239221] [2019-10-13 21:17:24,278 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:24,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:24,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919275571] [2019-10-13 21:17:24,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:24,280 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:24,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:24,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:24,280 INFO L87 Difference]: Start difference. First operand 5800 states and 8205 transitions. Second operand 5 states. [2019-10-13 21:17:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:25,993 INFO L93 Difference]: Finished difference Result 21559 states and 30658 transitions. [2019-10-13 21:17:25,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:25,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-13 21:17:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:26,111 INFO L225 Difference]: With dead ends: 21559 [2019-10-13 21:17:26,111 INFO L226 Difference]: Without dead ends: 16610 [2019-10-13 21:17:26,141 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16610 states. [2019-10-13 21:17:26,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16610 to 16514. [2019-10-13 21:17:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16514 states. [2019-10-13 21:17:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16514 states to 16514 states and 23470 transitions. [2019-10-13 21:17:26,882 INFO L78 Accepts]: Start accepts. Automaton has 16514 states and 23470 transitions. Word has length 213 [2019-10-13 21:17:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,883 INFO L462 AbstractCegarLoop]: Abstraction has 16514 states and 23470 transitions. [2019-10-13 21:17:26,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 16514 states and 23470 transitions. [2019-10-13 21:17:26,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:17:26,902 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:26,902 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:26,902 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:26,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:26,903 INFO L82 PathProgramCache]: Analyzing trace with hash -2046974930, now seen corresponding path program 1 times [2019-10-13 21:17:26,903 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:26,903 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516700740] [2019-10-13 21:17:26,903 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:27,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516700740] [2019-10-13 21:17:27,142 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:27,142 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:27,142 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358287383] [2019-10-13 21:17:27,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:27,144 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:27,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:27,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:27,144 INFO L87 Difference]: Start difference. First operand 16514 states and 23470 transitions. Second operand 11 states. [2019-10-13 21:17:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:28,074 INFO L93 Difference]: Finished difference Result 31215 states and 43918 transitions. [2019-10-13 21:17:28,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:28,075 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-13 21:17:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:28,160 INFO L225 Difference]: With dead ends: 31215 [2019-10-13 21:17:28,160 INFO L226 Difference]: Without dead ends: 16438 [2019-10-13 21:17:28,221 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:28,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16438 states. [2019-10-13 21:17:29,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16438 to 16386. [2019-10-13 21:17:29,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16386 states. [2019-10-13 21:17:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16386 states to 16386 states and 23087 transitions. [2019-10-13 21:17:29,821 INFO L78 Accepts]: Start accepts. Automaton has 16386 states and 23087 transitions. Word has length 213 [2019-10-13 21:17:29,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:29,822 INFO L462 AbstractCegarLoop]: Abstraction has 16386 states and 23087 transitions. [2019-10-13 21:17:29,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:29,822 INFO L276 IsEmpty]: Start isEmpty. Operand 16386 states and 23087 transitions. [2019-10-13 21:17:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 21:17:29,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:29,840 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:29,840 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:29,841 INFO L82 PathProgramCache]: Analyzing trace with hash 975255081, now seen corresponding path program 1 times [2019-10-13 21:17:29,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:29,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143139829] [2019-10-13 21:17:29,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:30,021 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143139829] [2019-10-13 21:17:30,022 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:30,022 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:30,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771790236] [2019-10-13 21:17:30,024 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:30,024 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:30,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:30,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:30,025 INFO L87 Difference]: Start difference. First operand 16386 states and 23087 transitions. Second operand 3 states. [2019-10-13 21:17:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:30,375 INFO L93 Difference]: Finished difference Result 33367 states and 47315 transitions. [2019-10-13 21:17:30,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:30,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2019-10-13 21:17:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:30,453 INFO L225 Difference]: With dead ends: 33367 [2019-10-13 21:17:30,453 INFO L226 Difference]: Without dead ends: 17046 [2019-10-13 21:17:30,507 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 21:17:30,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17046 states. [2019-10-13 21:17:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17046 to 17042. [2019-10-13 21:17:31,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17042 states. [2019-10-13 21:17:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17042 states to 17042 states and 24281 transitions. [2019-10-13 21:17:31,246 INFO L78 Accepts]: Start accepts. Automaton has 17042 states and 24281 transitions. Word has length 249 [2019-10-13 21:17:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:31,246 INFO L462 AbstractCegarLoop]: Abstraction has 17042 states and 24281 transitions. [2019-10-13 21:17:31,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:31,247 INFO L276 IsEmpty]: Start isEmpty. Operand 17042 states and 24281 transitions. [2019-10-13 21:17:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-13 21:17:31,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:31,266 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:31,266 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:31,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1474259572, now seen corresponding path program 1 times [2019-10-13 21:17:31,267 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:31,267 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353867559] [2019-10-13 21:17:31,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,268 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:31,476 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:31,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353867559] [2019-10-13 21:17:31,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:31,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:31,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147038206] [2019-10-13 21:17:31,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:31,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:31,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:31,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:31,478 INFO L87 Difference]: Start difference. First operand 17042 states and 24281 transitions. Second operand 8 states. [2019-10-13 21:17:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:37,094 INFO L93 Difference]: Finished difference Result 51492 states and 74833 transitions. [2019-10-13 21:17:37,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:37,095 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 235 [2019-10-13 21:17:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:37,260 INFO L225 Difference]: With dead ends: 51492 [2019-10-13 21:17:37,260 INFO L226 Difference]: Without dead ends: 34515 [2019-10-13 21:17:37,310 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:37,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34515 states. [2019-10-13 21:17:38,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34515 to 19526. [2019-10-13 21:17:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19526 states. [2019-10-13 21:17:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19526 states to 19526 states and 29149 transitions. [2019-10-13 21:17:38,272 INFO L78 Accepts]: Start accepts. Automaton has 19526 states and 29149 transitions. Word has length 235 [2019-10-13 21:17:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:38,273 INFO L462 AbstractCegarLoop]: Abstraction has 19526 states and 29149 transitions. [2019-10-13 21:17:38,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 19526 states and 29149 transitions. [2019-10-13 21:17:38,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-13 21:17:38,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:38,328 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:17:38,328 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:38,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:38,328 INFO L82 PathProgramCache]: Analyzing trace with hash 292222328, now seen corresponding path program 1 times [2019-10-13 21:17:38,329 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:38,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282479002] [2019-10-13 21:17:38,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:38,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:38,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY