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_spec8_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:18:29,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:18:29,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:18:29,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:18:29,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:18:29,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:18:29,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:18:29,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:18:29,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:18:29,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:18:29,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:18:29,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:18:29,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:18:29,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:18:29,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:18:29,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:18:29,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:18:29,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:18:29,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:18:29,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:18:29,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:18:29,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:18:29,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:18:29,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:18:29,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:18:29,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:18:29,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:18:29,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:18:29,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:18:29,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:18:29,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:18:29,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:18:29,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:18:29,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:18:29,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:18:29,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:18:29,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:18:29,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:18:29,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:18:29,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:18:29,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:18:29,342 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 21:18:29,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:18:29,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:18:29,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:18:29,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:18:29,378 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:18:29,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:18:29,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:18:29,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:18:29,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:18:29,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:18:29,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:18:29,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:18:29,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:18:29,380 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:18:29,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:18:29,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:18:29,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:18:29,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:18:29,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:18:29,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:18:29,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:18:29,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:18:29,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:18:29,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:18:29,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:18:29,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:18:29,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:18:29,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:18:29,383 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 21:18:29,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:18:29,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:18:29,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:18:29,707 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:18:29,708 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:18:29,708 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-10-13 21:18:29,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae9f3795/4205950c1a504a39a14c1ae7ec4de3c4/FLAGf05ff5707 [2019-10-13 21:18:30,400 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:18:30,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2019-10-13 21:18:30,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae9f3795/4205950c1a504a39a14c1ae7ec4de3c4/FLAGf05ff5707 [2019-10-13 21:18:30,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aae9f3795/4205950c1a504a39a14c1ae7ec4de3c4 [2019-10-13 21:18:30,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:18:30,621 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:18:30,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:30,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:18:30,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:18:30,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:30" (1/1) ... [2019-10-13 21:18:30,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1763af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:30, skipping insertion in model container [2019-10-13 21:18:30,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:30" (1/1) ... [2019-10-13 21:18:30,638 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:18:30,709 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:18:31,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:31,541 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:18:31,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:31,785 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:18:31,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31 WrapperNode [2019-10-13 21:18:31,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:31,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:18:31,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:18:31,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:18:31,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (1/1) ... [2019-10-13 21:18:31,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:18:31,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:18:31,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:18:31,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:18:31,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (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 21:18:32,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:18:32,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:18:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:18:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:18:32,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:18:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:18:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:18:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:18:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:18:32,065 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:18:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:18:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:18:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:18:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:18:32,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:18:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:18:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:18:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:18:32,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:18:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:18:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:18:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:18:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:18:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:18:32,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:18:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:18:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:18:32,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:18:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:18:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:18:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:18:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:18:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:18:32,071 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:18:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:18:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:18:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:18:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:18:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:18:32,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:18:32,073 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:18:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:18:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:18:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:18:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:18:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:18:32,074 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:18:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:18:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:18:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:18:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:18:32,076 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:18:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:18:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:18:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:18:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:18:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:18:32,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:18:32,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:18:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:18:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:18:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:18:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:18:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:18:32,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:18:32,080 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:18:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:18:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:18:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:18:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:18:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:18:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:18:32,082 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:18:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:18:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:18:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:18:32,083 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:18:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:18:32,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:18:32,084 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:18:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:18:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:18:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:18:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:18:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:18:32,085 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:18:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:18:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:18:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:18:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:18:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:18:32,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:18:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:18:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:18:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:18:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:18:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:18:32,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:18:32,088 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:32,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:18:32,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:18:32,091 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:18:32,092 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:18:32,093 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:18:32,094 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:18:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:18:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:18:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:18:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:18:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:18:32,095 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:18:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:18:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:18:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:18:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:18:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:18:32,096 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:18:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:18:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:18:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:18:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:18:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:18:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:18:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:18:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:18:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:18:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:18:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:18:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:18:32,099 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:18:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:18:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:18:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:18:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:18:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:18:32,100 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:18:32,101 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:18:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:18:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:18:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:18:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:18:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:18:32,102 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:18:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:18:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:18:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:18:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:18:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:18:32,103 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:18:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:18:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:18:32,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:18:34,235 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:18:34,236 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:18:34,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:34 BoogieIcfgContainer [2019-10-13 21:18:34,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:18:34,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:18:34,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:18:34,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:18:34,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:18:30" (1/3) ... [2019-10-13 21:18:34,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46103257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:34, skipping insertion in model container [2019-10-13 21:18:34,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:31" (2/3) ... [2019-10-13 21:18:34,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46103257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:34, skipping insertion in model container [2019-10-13 21:18:34,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:34" (3/3) ... [2019-10-13 21:18:34,251 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product32.cil.c [2019-10-13 21:18:34,261 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:18:34,275 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:18:34,287 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:18:34,334 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:18:34,335 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:18:34,335 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:18:34,342 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:18:34,343 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:18:34,343 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:18:34,343 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:18:34,344 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:18:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states. [2019-10-13 21:18:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 21:18:34,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:34,413 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:34,416 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:34,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1870939894, now seen corresponding path program 1 times [2019-10-13 21:18:34,432 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:34,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137045530] [2019-10-13 21:18:34,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:34,433 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:34,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:35,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137045530] [2019-10-13 21:18:35,076 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:35,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:18:35,077 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043768169] [2019-10-13 21:18:35,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:18:35,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:35,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:18:35,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:35,101 INFO L87 Difference]: Start difference. First operand 641 states. Second operand 2 states. [2019-10-13 21:18:35,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:35,180 INFO L93 Difference]: Finished difference Result 912 states and 1235 transitions. [2019-10-13 21:18:35,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:18:35,182 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-13 21:18:35,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:35,209 INFO L225 Difference]: With dead ends: 912 [2019-10-13 21:18:35,210 INFO L226 Difference]: Without dead ends: 584 [2019-10-13 21:18:35,223 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 21:18:35,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-13 21:18:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-13 21:18:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-13 21:18:35,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 796 transitions. [2019-10-13 21:18:35,343 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 796 transitions. Word has length 167 [2019-10-13 21:18:35,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:35,345 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 796 transitions. [2019-10-13 21:18:35,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:18:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 796 transitions. [2019-10-13 21:18:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 21:18:35,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:35,352 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:35,353 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:35,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:35,353 INFO L82 PathProgramCache]: Analyzing trace with hash 749800882, now seen corresponding path program 1 times [2019-10-13 21:18:35,353 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:35,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252674417] [2019-10-13 21:18:35,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:35,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252674417] [2019-10-13 21:18:35,669 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:35,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:35,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966458045] [2019-10-13 21:18:35,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:35,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:35,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:35,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:35,674 INFO L87 Difference]: Start difference. First operand 584 states and 796 transitions. Second operand 3 states. [2019-10-13 21:18:35,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:35,790 INFO L93 Difference]: Finished difference Result 895 states and 1200 transitions. [2019-10-13 21:18:35,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:35,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-13 21:18:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:35,806 INFO L225 Difference]: With dead ends: 895 [2019-10-13 21:18:35,807 INFO L226 Difference]: Without dead ends: 587 [2019-10-13 21:18:35,811 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 21:18:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2019-10-13 21:18:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 586. [2019-10-13 21:18:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2019-10-13 21:18:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 798 transitions. [2019-10-13 21:18:35,867 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 798 transitions. Word has length 168 [2019-10-13 21:18:35,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:35,869 INFO L462 AbstractCegarLoop]: Abstraction has 586 states and 798 transitions. [2019-10-13 21:18:35,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:35,869 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 798 transitions. [2019-10-13 21:18:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 21:18:35,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:35,878 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:35,878 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:35,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:35,879 INFO L82 PathProgramCache]: Analyzing trace with hash -307093278, now seen corresponding path program 1 times [2019-10-13 21:18:35,879 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:35,880 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475371996] [2019-10-13 21:18:35,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:35,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:36,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475371996] [2019-10-13 21:18:36,209 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:36,209 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:36,209 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539832607] [2019-10-13 21:18:36,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:36,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:36,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:36,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:36,215 INFO L87 Difference]: Start difference. First operand 586 states and 798 transitions. Second operand 3 states. [2019-10-13 21:18:36,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:36,260 INFO L93 Difference]: Finished difference Result 1150 states and 1597 transitions. [2019-10-13 21:18:36,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:36,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 21:18:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:36,269 INFO L225 Difference]: With dead ends: 1150 [2019-10-13 21:18:36,269 INFO L226 Difference]: Without dead ends: 629 [2019-10-13 21:18:36,272 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 21:18:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-10-13 21:18:36,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 628. [2019-10-13 21:18:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-10-13 21:18:36,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 870 transitions. [2019-10-13 21:18:36,309 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 870 transitions. Word has length 178 [2019-10-13 21:18:36,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:36,313 INFO L462 AbstractCegarLoop]: Abstraction has 628 states and 870 transitions. [2019-10-13 21:18:36,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:36,313 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 870 transitions. [2019-10-13 21:18:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 21:18:36,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:36,320 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:36,321 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:36,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:36,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1018259140, now seen corresponding path program 1 times [2019-10-13 21:18:36,322 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:36,322 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813726438] [2019-10-13 21:18:36,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:36,323 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:36,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:36,598 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:36,598 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813726438] [2019-10-13 21:18:36,599 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:36,599 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:36,599 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954471185] [2019-10-13 21:18:36,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:36,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:36,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:36,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:36,603 INFO L87 Difference]: Start difference. First operand 628 states and 870 transitions. Second operand 3 states. [2019-10-13 21:18:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:36,654 INFO L93 Difference]: Finished difference Result 1273 states and 1808 transitions. [2019-10-13 21:18:36,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:36,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-13 21:18:36,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:36,661 INFO L225 Difference]: With dead ends: 1273 [2019-10-13 21:18:36,661 INFO L226 Difference]: Without dead ends: 710 [2019-10-13 21:18:36,663 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 21:18:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-10-13 21:18:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 709. [2019-10-13 21:18:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2019-10-13 21:18:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1008 transitions. [2019-10-13 21:18:36,704 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1008 transitions. Word has length 179 [2019-10-13 21:18:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:36,705 INFO L462 AbstractCegarLoop]: Abstraction has 709 states and 1008 transitions. [2019-10-13 21:18:36,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1008 transitions. [2019-10-13 21:18:36,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 21:18:36,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:36,711 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:36,712 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:36,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:36,712 INFO L82 PathProgramCache]: Analyzing trace with hash 826212994, now seen corresponding path program 1 times [2019-10-13 21:18:36,713 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:36,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413360793] [2019-10-13 21:18:36,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:36,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:36,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:36,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:36,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413360793] [2019-10-13 21:18:36,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:36,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:36,936 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825156372] [2019-10-13 21:18:36,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:36,937 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:36,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:36,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:36,938 INFO L87 Difference]: Start difference. First operand 709 states and 1008 transitions. Second operand 3 states. [2019-10-13 21:18:36,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:36,985 INFO L93 Difference]: Finished difference Result 1510 states and 2212 transitions. [2019-10-13 21:18:36,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:36,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-13 21:18:36,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:36,993 INFO L225 Difference]: With dead ends: 1510 [2019-10-13 21:18:36,993 INFO L226 Difference]: Without dead ends: 866 [2019-10-13 21:18:36,996 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 21:18:36,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2019-10-13 21:18:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 865. [2019-10-13 21:18:37,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 865 states. [2019-10-13 21:18:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1272 transitions. [2019-10-13 21:18:37,042 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1272 transitions. Word has length 180 [2019-10-13 21:18:37,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:37,043 INFO L462 AbstractCegarLoop]: Abstraction has 865 states and 1272 transitions. [2019-10-13 21:18:37,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:37,043 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1272 transitions. [2019-10-13 21:18:37,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 21:18:37,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:37,048 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:37,048 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:37,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:37,049 INFO L82 PathProgramCache]: Analyzing trace with hash -384196708, now seen corresponding path program 1 times [2019-10-13 21:18:37,049 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:37,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108456219] [2019-10-13 21:18:37,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:37,050 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:37,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:37,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108456219] [2019-10-13 21:18:37,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:37,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:37,271 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958664551] [2019-10-13 21:18:37,273 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:37,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:37,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:37,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:37,274 INFO L87 Difference]: Start difference. First operand 865 states and 1272 transitions. Second operand 3 states. [2019-10-13 21:18:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:37,321 INFO L93 Difference]: Finished difference Result 1966 states and 2984 transitions. [2019-10-13 21:18:37,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:37,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 21:18:37,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:37,328 INFO L225 Difference]: With dead ends: 1966 [2019-10-13 21:18:37,329 INFO L226 Difference]: Without dead ends: 1166 [2019-10-13 21:18:37,332 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 21:18:37,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2019-10-13 21:18:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1165. [2019-10-13 21:18:37,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1165 states. [2019-10-13 21:18:37,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1776 transitions. [2019-10-13 21:18:37,377 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1776 transitions. Word has length 181 [2019-10-13 21:18:37,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:37,377 INFO L462 AbstractCegarLoop]: Abstraction has 1165 states and 1776 transitions. [2019-10-13 21:18:37,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:37,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1776 transitions. [2019-10-13 21:18:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-13 21:18:37,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:37,384 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:37,384 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:37,385 INFO L82 PathProgramCache]: Analyzing trace with hash 726848663, now seen corresponding path program 1 times [2019-10-13 21:18:37,385 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:37,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105558492] [2019-10-13 21:18:37,386 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:37,386 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:37,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:18:37,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105558492] [2019-10-13 21:18:37,595 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:37,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:37,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485716358] [2019-10-13 21:18:37,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:37,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:37,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:37,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:37,597 INFO L87 Difference]: Start difference. First operand 1165 states and 1776 transitions. Second operand 3 states. [2019-10-13 21:18:37,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:37,662 INFO L93 Difference]: Finished difference Result 1601 states and 2368 transitions. [2019-10-13 21:18:37,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:37,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-13 21:18:37,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:37,671 INFO L225 Difference]: With dead ends: 1601 [2019-10-13 21:18:37,671 INFO L226 Difference]: Without dead ends: 1306 [2019-10-13 21:18:37,673 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 21:18:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2019-10-13 21:18:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1305. [2019-10-13 21:18:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2019-10-13 21:18:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1973 transitions. [2019-10-13 21:18:37,791 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1973 transitions. Word has length 184 [2019-10-13 21:18:37,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:37,793 INFO L462 AbstractCegarLoop]: Abstraction has 1305 states and 1973 transitions. [2019-10-13 21:18:37,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1973 transitions. [2019-10-13 21:18:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-10-13 21:18:37,803 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:37,804 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:18:37,804 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash 512730866, now seen corresponding path program 1 times [2019-10-13 21:18:37,805 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:37,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88360422] [2019-10-13 21:18:37,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:37,805 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:37,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:18:38,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88360422] [2019-10-13 21:18:38,103 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:38,103 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:38,103 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670585942] [2019-10-13 21:18:38,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:38,105 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:38,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:38,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:38,105 INFO L87 Difference]: Start difference. First operand 1305 states and 1973 transitions. Second operand 6 states. [2019-10-13 21:18:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:38,906 INFO L93 Difference]: Finished difference Result 2958 states and 4439 transitions. [2019-10-13 21:18:38,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:18:38,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 329 [2019-10-13 21:18:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:38,935 INFO L225 Difference]: With dead ends: 2958 [2019-10-13 21:18:38,935 INFO L226 Difference]: Without dead ends: 2561 [2019-10-13 21:18:38,939 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 21:18:38,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2019-10-13 21:18:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2550. [2019-10-13 21:18:39,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2550 states. [2019-10-13 21:18:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 3896 transitions. [2019-10-13 21:18:39,091 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 3896 transitions. Word has length 329 [2019-10-13 21:18:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:39,094 INFO L462 AbstractCegarLoop]: Abstraction has 2550 states and 3896 transitions. [2019-10-13 21:18:39,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:18:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 3896 transitions. [2019-10-13 21:18:39,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-10-13 21:18:39,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:39,115 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:18:39,115 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:39,116 INFO L82 PathProgramCache]: Analyzing trace with hash -603308041, now seen corresponding path program 1 times [2019-10-13 21:18:39,116 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:39,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227877526] [2019-10-13 21:18:39,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:39,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:39,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-13 21:18:39,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227877526] [2019-10-13 21:18:39,527 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:39,527 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:18:39,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436604056] [2019-10-13 21:18:39,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:18:39,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:39,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:18:39,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:18:39,532 INFO L87 Difference]: Start difference. First operand 2550 states and 3896 transitions. Second operand 11 states. [2019-10-13 21:18:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:40,046 INFO L93 Difference]: Finished difference Result 3341 states and 4945 transitions. [2019-10-13 21:18:40,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:18:40,046 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 330 [2019-10-13 21:18:40,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:40,066 INFO L225 Difference]: With dead ends: 3341 [2019-10-13 21:18:40,066 INFO L226 Difference]: Without dead ends: 2524 [2019-10-13 21:18:40,071 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 21:18:40,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2019-10-13 21:18:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2520. [2019-10-13 21:18:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2520 states. [2019-10-13 21:18:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3845 transitions. [2019-10-13 21:18:40,212 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3845 transitions. Word has length 330 [2019-10-13 21:18:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:40,213 INFO L462 AbstractCegarLoop]: Abstraction has 2520 states and 3845 transitions. [2019-10-13 21:18:40,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:18:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3845 transitions. [2019-10-13 21:18:40,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2019-10-13 21:18:40,236 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:40,237 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:40,237 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:40,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:40,238 INFO L82 PathProgramCache]: Analyzing trace with hash 882423034, now seen corresponding path program 1 times [2019-10-13 21:18:40,238 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:40,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692317780] [2019-10-13 21:18:40,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:40,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:40,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-13 21:18:40,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692317780] [2019-10-13 21:18:40,604 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:40,604 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:40,604 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562723778] [2019-10-13 21:18:40,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:40,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:40,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:40,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:40,608 INFO L87 Difference]: Start difference. First operand 2520 states and 3845 transitions. Second operand 3 states. [2019-10-13 21:18:40,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:40,738 INFO L93 Difference]: Finished difference Result 6129 states and 9587 transitions. [2019-10-13 21:18:40,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:40,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2019-10-13 21:18:40,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:40,761 INFO L225 Difference]: With dead ends: 6129 [2019-10-13 21:18:40,761 INFO L226 Difference]: Without dead ends: 3674 [2019-10-13 21:18:40,777 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 21:18:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3674 states. [2019-10-13 21:18:40,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3674 to 3672. [2019-10-13 21:18:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3672 states. [2019-10-13 21:18:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3672 states to 3672 states and 5781 transitions. [2019-10-13 21:18:40,955 INFO L78 Accepts]: Start accepts. Automaton has 3672 states and 5781 transitions. Word has length 371 [2019-10-13 21:18:40,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:40,956 INFO L462 AbstractCegarLoop]: Abstraction has 3672 states and 5781 transitions. [2019-10-13 21:18:40,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5781 transitions. [2019-10-13 21:18:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2019-10-13 21:18:40,980 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:40,981 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:40,981 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:40,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:40,982 INFO L82 PathProgramCache]: Analyzing trace with hash 788904095, now seen corresponding path program 1 times [2019-10-13 21:18:40,982 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:40,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285680596] [2019-10-13 21:18:40,982 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:40,983 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:40,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2019-10-13 21:18:41,289 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285680596] [2019-10-13 21:18:41,289 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:41,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:41,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072460817] [2019-10-13 21:18:41,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:41,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:41,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:41,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:41,292 INFO L87 Difference]: Start difference. First operand 3672 states and 5781 transitions. Second operand 3 states. [2019-10-13 21:18:41,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:41,484 INFO L93 Difference]: Finished difference Result 9617 states and 15427 transitions. [2019-10-13 21:18:41,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:41,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2019-10-13 21:18:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:41,521 INFO L225 Difference]: With dead ends: 9617 [2019-10-13 21:18:41,522 INFO L226 Difference]: Without dead ends: 6010 [2019-10-13 21:18:41,536 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 21:18:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6010 states. [2019-10-13 21:18:41,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6010 to 6008. [2019-10-13 21:18:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6008 states. [2019-10-13 21:18:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6008 states to 6008 states and 9653 transitions. [2019-10-13 21:18:41,851 INFO L78 Accepts]: Start accepts. Automaton has 6008 states and 9653 transitions. Word has length 357 [2019-10-13 21:18:41,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:41,852 INFO L462 AbstractCegarLoop]: Abstraction has 6008 states and 9653 transitions. [2019-10-13 21:18:41,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:41,852 INFO L276 IsEmpty]: Start isEmpty. Operand 6008 states and 9653 transitions. [2019-10-13 21:18:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2019-10-13 21:18:41,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:41,892 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:18:41,892 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:41,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:41,892 INFO L82 PathProgramCache]: Analyzing trace with hash 535304145, now seen corresponding path program 1 times [2019-10-13 21:18:41,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:41,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765727787] [2019-10-13 21:18:41,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:41,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:41,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:42,998 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-13 21:18:42,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765727787] [2019-10-13 21:18:42,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110120938] [2019-10-13 21:18:42,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:43,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 3895 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:18:43,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-13 21:18:44,371 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:45,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:18:45,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:45,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-13 21:18:45,479 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:18:45,479 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22, 9] total 35 [2019-10-13 21:18:45,480 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756860275] [2019-10-13 21:18:45,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:18:45,481 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:45,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:18:45,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:18:45,482 INFO L87 Difference]: Start difference. First operand 6008 states and 9653 transitions. Second operand 9 states. [2019-10-13 21:18:47,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:47,011 INFO L93 Difference]: Finished difference Result 11994 states and 19286 transitions. [2019-10-13 21:18:47,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:18:47,012 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 338 [2019-10-13 21:18:47,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:47,049 INFO L225 Difference]: With dead ends: 11994 [2019-10-13 21:18:47,050 INFO L226 Difference]: Without dead ends: 6022 [2019-10-13 21:18:47,071 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 665 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:18:47,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2019-10-13 21:18:47,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 6022. [2019-10-13 21:18:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6022 states. [2019-10-13 21:18:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6022 states to 6022 states and 9671 transitions. [2019-10-13 21:18:47,475 INFO L78 Accepts]: Start accepts. Automaton has 6022 states and 9671 transitions. Word has length 338 [2019-10-13 21:18:47,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:47,476 INFO L462 AbstractCegarLoop]: Abstraction has 6022 states and 9671 transitions. [2019-10-13 21:18:47,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:18:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand 6022 states and 9671 transitions. [2019-10-13 21:18:47,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2019-10-13 21:18:47,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:47,518 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:18:47,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:47,727 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash -603175921, now seen corresponding path program 1 times [2019-10-13 21:18:47,729 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:47,729 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074013697] [2019-10-13 21:18:47,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:47,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:47,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:48,433 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-13 21:18:48,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074013697] [2019-10-13 21:18:48,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16260426] [2019-10-13 21:18:48,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:49,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 3896 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:18:49,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-13 21:18:49,415 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:50,197 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:50,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-13 21:18:50,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:18:50,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22, 7] total 31 [2019-10-13 21:18:50,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245226034] [2019-10-13 21:18:50,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:50,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:50,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:50,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:18:50,354 INFO L87 Difference]: Start difference. First operand 6022 states and 9671 transitions. Second operand 7 states. [2019-10-13 21:18:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:51,816 INFO L93 Difference]: Finished difference Result 11997 states and 19355 transitions. [2019-10-13 21:18:51,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:51,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 339 [2019-10-13 21:18:51,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:51,854 INFO L225 Difference]: With dead ends: 11997 [2019-10-13 21:18:51,854 INFO L226 Difference]: Without dead ends: 6026 [2019-10-13 21:18:51,883 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 672 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=966, Unknown=0, NotChecked=0, Total=1056 [2019-10-13 21:18:51,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6026 states. [2019-10-13 21:18:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6026 to 6026. [2019-10-13 21:18:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6026 states. [2019-10-13 21:18:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 9676 transitions. [2019-10-13 21:18:52,259 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 9676 transitions. Word has length 339 [2019-10-13 21:18:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:52,260 INFO L462 AbstractCegarLoop]: Abstraction has 6026 states and 9676 transitions. [2019-10-13 21:18:52,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:52,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 9676 transitions. [2019-10-13 21:18:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2019-10-13 21:18:52,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:52,307 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:18:52,524 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:52,525 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:52,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:52,526 INFO L82 PathProgramCache]: Analyzing trace with hash -544968551, now seen corresponding path program 1 times [2019-10-13 21:18:52,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:52,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075779466] [2019-10-13 21:18:52,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:52,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:52,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:52,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-13 21:18:53,164 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075779466] [2019-10-13 21:18:53,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405359012] [2019-10-13 21:18:53,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:53,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 3897 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:18:53,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2019-10-13 21:18:54,278 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:55,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:18:55,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:55,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-13 21:18:55,405 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:18:55,405 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 36 [2019-10-13 21:18:55,405 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138225094] [2019-10-13 21:18:55,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:18:55,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:55,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:18:55,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 21:18:55,408 INFO L87 Difference]: Start difference. First operand 6026 states and 9676 transitions. Second operand 16 states. [2019-10-13 21:18:58,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:58,196 INFO L93 Difference]: Finished difference Result 12003 states and 19294 transitions. [2019-10-13 21:18:58,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:18:58,196 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 340 [2019-10-13 21:18:58,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:58,222 INFO L225 Difference]: With dead ends: 12003 [2019-10-13 21:18:58,222 INFO L226 Difference]: Without dead ends: 6038 [2019-10-13 21:18:58,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 669 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=131, Invalid=1429, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:18:58,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2019-10-13 21:18:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 6036. [2019-10-13 21:18:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6036 states. [2019-10-13 21:18:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6036 states to 6036 states and 9687 transitions. [2019-10-13 21:18:58,664 INFO L78 Accepts]: Start accepts. Automaton has 6036 states and 9687 transitions. Word has length 340 [2019-10-13 21:18:58,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:58,665 INFO L462 AbstractCegarLoop]: Abstraction has 6036 states and 9687 transitions. [2019-10-13 21:18:58,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:18:58,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6036 states and 9687 transitions. [2019-10-13 21:18:58,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2019-10-13 21:18:58,694 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:58,694 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 21:18:58,903 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:58,903 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:58,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:58,904 INFO L82 PathProgramCache]: Analyzing trace with hash -738434345, now seen corresponding path program 2 times [2019-10-13 21:18:58,904 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:58,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64192329] [2019-10-13 21:18:58,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:58,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:58,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-13 21:18:59,551 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64192329] [2019-10-13 21:18:59,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892206860] [2019-10-13 21:18:59,552 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:00,275 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-13 21:19:00,275 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 21:19:00,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 2677 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:19:00,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2019-10-13 21:19:00,559 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:01,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:01,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-10-13 21:19:01,475 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:19:01,475 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [22] total 32 [2019-10-13 21:19:01,475 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716921992] [2019-10-13 21:19:01,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:19:01,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:01,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:19:01,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:19:01,478 INFO L87 Difference]: Start difference. First operand 6036 states and 9687 transitions. Second operand 12 states.