java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:48,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:48,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:48,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:48,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:48,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:48,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:48,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:48,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:48,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:48,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:48,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:48,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:48,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:48,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:48,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:48,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:48,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:48,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:48,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:48,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:48,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:48,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:48,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:48,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:48,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:48,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:48,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:48,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:48,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:48,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:48,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:48,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:48,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:48,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:48,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:48,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:48,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:48,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:48,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:48,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:48,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:17:48,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:48,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:48,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:48,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:48,324 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:48,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:48,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:48,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:48,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:48,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:48,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:48,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:48,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:48,326 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:48,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:48,326 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:48,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:48,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:48,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:48,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:48,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:48,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:48,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:48,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:48,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:48,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:48,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:48,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:48,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:17:48,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:48,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:48,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:48,656 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:48,657 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:48,657 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c [2019-10-15 03:17:48,724 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a626be747/2fe3574a472b45b58643e2ac20357e16/FLAG01cd4f30b [2019-10-15 03:17:49,361 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:49,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c [2019-10-15 03:17:49,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a626be747/2fe3574a472b45b58643e2ac20357e16/FLAG01cd4f30b [2019-10-15 03:17:49,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a626be747/2fe3574a472b45b58643e2ac20357e16 [2019-10-15 03:17:49,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:49,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:49,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:49,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:49,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:49,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:49" (1/1) ... [2019-10-15 03:17:49,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad58572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:49, skipping insertion in model container [2019-10-15 03:17:49,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:49" (1/1) ... [2019-10-15 03:17:49,575 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:49,652 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:50,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:50,494 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:50,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:50,748 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:50,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50 WrapperNode [2019-10-15 03:17:50,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:50,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:50,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:50,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:50,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:50,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... [2019-10-15 03:17:51,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:51,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:51,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:51,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:51,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:17:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:17:51,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:51,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:17:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:51,098 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:51,099 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:17:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:51,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:51,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:51,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:51,104 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:51,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:51,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:51,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:51,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:51,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:51,112 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:51,113 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:51,117 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:51,123 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:51,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:51,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:51,126 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:51,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:51,128 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:51,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:51,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:51,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:55,957 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:55,958 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:55,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:55 BoogieIcfgContainer [2019-10-15 03:17:55,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:55,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:55,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:55,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:55,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:49" (1/3) ... [2019-10-15 03:17:55,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f323a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:55, skipping insertion in model container [2019-10-15 03:17:55,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:50" (2/3) ... [2019-10-15 03:17:55,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1f323a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:55, skipping insertion in model container [2019-10-15 03:17:55,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:55" (3/3) ... [2019-10-15 03:17:55,968 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product14.cil.c [2019-10-15 03:17:55,980 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:55,989 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:56,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:56,031 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:56,031 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:56,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:56,031 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:56,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:56,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:56,032 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:56,032 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states. [2019-10-15 03:17:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:17:56,079 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:56,080 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:56,083 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:56,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:56,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2042434371, now seen corresponding path program 1 times [2019-10-15 03:17:56,099 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:56,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789546006] [2019-10-15 03:17:56,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:56,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:56,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:56,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789546006] [2019-10-15 03:17:56,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:56,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:56,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164208231] [2019-10-15 03:17:56,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:56,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:56,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:56,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:56,799 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 2 states. [2019-10-15 03:17:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:56,870 INFO L93 Difference]: Finished difference Result 469 states and 564 transitions. [2019-10-15 03:17:56,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:56,875 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-15 03:17:56,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:56,904 INFO L225 Difference]: With dead ends: 469 [2019-10-15 03:17:56,904 INFO L226 Difference]: Without dead ends: 313 [2019-10-15 03:17:56,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:56,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-10-15 03:17:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-10-15 03:17:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-10-15 03:17:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 373 transitions. [2019-10-15 03:17:57,031 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 373 transitions. Word has length 121 [2019-10-15 03:17:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:57,035 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 373 transitions. [2019-10-15 03:17:57,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 373 transitions. [2019-10-15 03:17:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-15 03:17:57,049 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:57,049 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:57,049 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:57,050 INFO L82 PathProgramCache]: Analyzing trace with hash -972187910, now seen corresponding path program 1 times [2019-10-15 03:17:57,052 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:57,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308698748] [2019-10-15 03:17:57,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:57,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308698748] [2019-10-15 03:17:57,391 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:57,392 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:57,392 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444585588] [2019-10-15 03:17:57,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:57,394 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:57,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:57,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,395 INFO L87 Difference]: Start difference. First operand 313 states and 373 transitions. Second operand 3 states. [2019-10-15 03:17:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:57,444 INFO L93 Difference]: Finished difference Result 454 states and 533 transitions. [2019-10-15 03:17:57,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:57,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-15 03:17:57,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:57,457 INFO L225 Difference]: With dead ends: 454 [2019-10-15 03:17:57,457 INFO L226 Difference]: Without dead ends: 315 [2019-10-15 03:17:57,460 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2019-10-15 03:17:57,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2019-10-15 03:17:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-10-15 03:17:57,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 375 transitions. [2019-10-15 03:17:57,519 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 375 transitions. Word has length 122 [2019-10-15 03:17:57,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:57,523 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 375 transitions. [2019-10-15 03:17:57,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:57,523 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 375 transitions. [2019-10-15 03:17:57,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-15 03:17:57,532 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:57,533 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:57,533 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:57,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:57,534 INFO L82 PathProgramCache]: Analyzing trace with hash 434987233, now seen corresponding path program 1 times [2019-10-15 03:17:57,534 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:57,534 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719397395] [2019-10-15 03:17:57,534 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:57,773 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719397395] [2019-10-15 03:17:57,774 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:57,774 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:57,774 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469751225] [2019-10-15 03:17:57,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:57,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:57,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:57,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,778 INFO L87 Difference]: Start difference. First operand 315 states and 375 transitions. Second operand 3 states. [2019-10-15 03:17:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:57,827 INFO L93 Difference]: Finished difference Result 612 states and 757 transitions. [2019-10-15 03:17:57,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:57,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-10-15 03:17:57,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:57,836 INFO L225 Difference]: With dead ends: 612 [2019-10-15 03:17:57,836 INFO L226 Difference]: Without dead ends: 355 [2019-10-15 03:17:57,838 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:57,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-15 03:17:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 354. [2019-10-15 03:17:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-10-15 03:17:57,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 443 transitions. [2019-10-15 03:17:57,880 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 443 transitions. Word has length 127 [2019-10-15 03:17:57,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:57,881 INFO L462 AbstractCegarLoop]: Abstraction has 354 states and 443 transitions. [2019-10-15 03:17:57,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:57,881 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 443 transitions. [2019-10-15 03:17:57,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-15 03:17:57,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:57,888 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:57,888 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:57,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:57,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1525947927, now seen corresponding path program 1 times [2019-10-15 03:17:57,889 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:57,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148216620] [2019-10-15 03:17:57,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:57,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:58,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148216620] [2019-10-15 03:17:58,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:58,191 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:58,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901685622] [2019-10-15 03:17:58,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:58,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:58,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:58,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,196 INFO L87 Difference]: Start difference. First operand 354 states and 443 transitions. Second operand 3 states. [2019-10-15 03:17:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:58,275 INFO L93 Difference]: Finished difference Result 545 states and 667 transitions. [2019-10-15 03:17:58,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:58,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-15 03:17:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:58,288 INFO L225 Difference]: With dead ends: 545 [2019-10-15 03:17:58,289 INFO L226 Difference]: Without dead ends: 418 [2019-10-15 03:17:58,291 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-10-15 03:17:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 417. [2019-10-15 03:17:58,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-15 03:17:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 516 transitions. [2019-10-15 03:17:58,335 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 516 transitions. Word has length 128 [2019-10-15 03:17:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:58,338 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 516 transitions. [2019-10-15 03:17:58,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 516 transitions. [2019-10-15 03:17:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 03:17:58,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:58,353 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:58,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:58,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:58,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1570090250, now seen corresponding path program 1 times [2019-10-15 03:17:58,354 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:58,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207305415] [2019-10-15 03:17:58,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:58,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:17:58,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207305415] [2019-10-15 03:17:58,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:58,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:17:58,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990317055] [2019-10-15 03:17:58,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:17:58,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:58,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:17:58,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:17:58,857 INFO L87 Difference]: Start difference. First operand 417 states and 516 transitions. Second operand 12 states. [2019-10-15 03:18:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:01,070 INFO L93 Difference]: Finished difference Result 939 states and 1153 transitions. [2019-10-15 03:18:01,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:18:01,070 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 211 [2019-10-15 03:18:01,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:01,076 INFO L225 Difference]: With dead ends: 939 [2019-10-15 03:18:01,077 INFO L226 Difference]: Without dead ends: 754 [2019-10-15 03:18:01,078 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:18:01,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-10-15 03:18:01,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 745. [2019-10-15 03:18:01,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 745 states. [2019-10-15 03:18:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 932 transitions. [2019-10-15 03:18:01,143 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 932 transitions. Word has length 211 [2019-10-15 03:18:01,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:01,145 INFO L462 AbstractCegarLoop]: Abstraction has 745 states and 932 transitions. [2019-10-15 03:18:01,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:18:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 932 transitions. [2019-10-15 03:18:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 03:18:01,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:01,153 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:01,153 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:01,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:01,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1016670575, now seen corresponding path program 1 times [2019-10-15 03:18:01,154 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:01,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321465375] [2019-10-15 03:18:01,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:01,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:01,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:01,464 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 03:18:01,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321465375] [2019-10-15 03:18:01,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:01,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:18:01,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175826440] [2019-10-15 03:18:01,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:18:01,467 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:01,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:18:01,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:18:01,467 INFO L87 Difference]: Start difference. First operand 745 states and 932 transitions. Second operand 10 states. [2019-10-15 03:18:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:02,644 INFO L93 Difference]: Finished difference Result 909 states and 1106 transitions. [2019-10-15 03:18:02,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 03:18:02,645 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 213 [2019-10-15 03:18:02,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:02,649 INFO L225 Difference]: With dead ends: 909 [2019-10-15 03:18:02,650 INFO L226 Difference]: Without dead ends: 512 [2019-10-15 03:18:02,652 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:18:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2019-10-15 03:18:02,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 510. [2019-10-15 03:18:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-10-15 03:18:02,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 651 transitions. [2019-10-15 03:18:02,687 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 651 transitions. Word has length 213 [2019-10-15 03:18:02,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:02,688 INFO L462 AbstractCegarLoop]: Abstraction has 510 states and 651 transitions. [2019-10-15 03:18:02,688 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:18:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 651 transitions. [2019-10-15 03:18:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-15 03:18:02,695 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:02,695 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:02,696 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:02,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:02,696 INFO L82 PathProgramCache]: Analyzing trace with hash -746900742, now seen corresponding path program 1 times [2019-10-15 03:18:02,696 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:02,697 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020966435] [2019-10-15 03:18:02,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:02,697 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:02,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:02,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020966435] [2019-10-15 03:18:02,888 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:02,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:02,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563219729] [2019-10-15 03:18:02,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:02,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:02,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:02,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:02,890 INFO L87 Difference]: Start difference. First operand 510 states and 651 transitions. Second operand 3 states. [2019-10-15 03:18:02,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:02,927 INFO L93 Difference]: Finished difference Result 1119 states and 1506 transitions. [2019-10-15 03:18:02,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:02,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-15 03:18:02,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:02,932 INFO L225 Difference]: With dead ends: 1119 [2019-10-15 03:18:02,932 INFO L226 Difference]: Without dead ends: 665 [2019-10-15 03:18:02,934 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:02,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2019-10-15 03:18:02,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2019-10-15 03:18:02,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2019-10-15 03:18:02,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 911 transitions. [2019-10-15 03:18:02,977 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 911 transitions. Word has length 233 [2019-10-15 03:18:02,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:02,978 INFO L462 AbstractCegarLoop]: Abstraction has 664 states and 911 transitions. [2019-10-15 03:18:02,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:02,978 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 911 transitions. [2019-10-15 03:18:02,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 03:18:02,984 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:02,985 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:02,985 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:02,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:02,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1999648866, now seen corresponding path program 1 times [2019-10-15 03:18:02,986 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:02,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748278237] [2019-10-15 03:18:02,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:02,987 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:02,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:03,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748278237] [2019-10-15 03:18:03,226 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:03,226 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:03,226 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731603283] [2019-10-15 03:18:03,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:03,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:03,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:03,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:03,228 INFO L87 Difference]: Start difference. First operand 664 states and 911 transitions. Second operand 3 states. [2019-10-15 03:18:03,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:03,276 INFO L93 Difference]: Finished difference Result 1561 states and 2254 transitions. [2019-10-15 03:18:03,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:03,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-10-15 03:18:03,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:03,283 INFO L225 Difference]: With dead ends: 1561 [2019-10-15 03:18:03,284 INFO L226 Difference]: Without dead ends: 953 [2019-10-15 03:18:03,286 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:03,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2019-10-15 03:18:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 952. [2019-10-15 03:18:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2019-10-15 03:18:03,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1395 transitions. [2019-10-15 03:18:03,341 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1395 transitions. Word has length 234 [2019-10-15 03:18:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:03,342 INFO L462 AbstractCegarLoop]: Abstraction has 952 states and 1395 transitions. [2019-10-15 03:18:03,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1395 transitions. [2019-10-15 03:18:03,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-10-15 03:18:03,349 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:03,349 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:03,350 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:03,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:03,350 INFO L82 PathProgramCache]: Analyzing trace with hash -470584100, now seen corresponding path program 1 times [2019-10-15 03:18:03,350 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:03,351 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548424213] [2019-10-15 03:18:03,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:03,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:03,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:03,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548424213] [2019-10-15 03:18:03,575 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:03,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:03,576 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644099418] [2019-10-15 03:18:03,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:03,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:03,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:03,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:03,577 INFO L87 Difference]: Start difference. First operand 952 states and 1395 transitions. Second operand 3 states. [2019-10-15 03:18:03,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:03,648 INFO L93 Difference]: Finished difference Result 2401 states and 3666 transitions. [2019-10-15 03:18:03,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:03,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2019-10-15 03:18:03,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:03,659 INFO L225 Difference]: With dead ends: 2401 [2019-10-15 03:18:03,659 INFO L226 Difference]: Without dead ends: 1505 [2019-10-15 03:18:03,663 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 [2019-10-15 03:18:03,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2019-10-15 03:18:03,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1504. [2019-10-15 03:18:03,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1504 states. [2019-10-15 03:18:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 2315 transitions. [2019-10-15 03:18:03,812 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 2315 transitions. Word has length 235 [2019-10-15 03:18:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:03,813 INFO L462 AbstractCegarLoop]: Abstraction has 1504 states and 2315 transitions. [2019-10-15 03:18:03,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 2315 transitions. [2019-10-15 03:18:03,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 03:18:03,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:03,823 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:03,823 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:03,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1650430462, now seen corresponding path program 1 times [2019-10-15 03:18:03,824 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:03,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965013335] [2019-10-15 03:18:03,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:03,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:03,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:04,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965013335] [2019-10-15 03:18:04,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:04,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:04,063 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385358974] [2019-10-15 03:18:04,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:04,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:04,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:04,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:04,065 INFO L87 Difference]: Start difference. First operand 1504 states and 2315 transitions. Second operand 3 states. [2019-10-15 03:18:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:04,202 INFO L93 Difference]: Finished difference Result 4009 states and 6346 transitions. [2019-10-15 03:18:04,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:04,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2019-10-15 03:18:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:04,221 INFO L225 Difference]: With dead ends: 4009 [2019-10-15 03:18:04,221 INFO L226 Difference]: Without dead ends: 2561 [2019-10-15 03:18:04,232 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:04,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2561 states. [2019-10-15 03:18:04,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2561 to 2560. [2019-10-15 03:18:04,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2019-10-15 03:18:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 4059 transitions. [2019-10-15 03:18:04,406 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 4059 transitions. Word has length 236 [2019-10-15 03:18:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:04,407 INFO L462 AbstractCegarLoop]: Abstraction has 2560 states and 4059 transitions. [2019-10-15 03:18:04,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:04,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 4059 transitions. [2019-10-15 03:18:04,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-15 03:18:04,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:04,424 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:04,424 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:04,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:04,424 INFO L82 PathProgramCache]: Analyzing trace with hash 783001404, now seen corresponding path program 1 times [2019-10-15 03:18:04,424 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:04,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202744285] [2019-10-15 03:18:04,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:04,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:04,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:04,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202744285] [2019-10-15 03:18:04,644 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:04,644 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:04,644 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945435838] [2019-10-15 03:18:04,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:04,645 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:04,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:04,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:04,646 INFO L87 Difference]: Start difference. First operand 2560 states and 4059 transitions. Second operand 3 states. [2019-10-15 03:18:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:04,953 INFO L93 Difference]: Finished difference Result 7209 states and 11610 transitions. [2019-10-15 03:18:04,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:04,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-15 03:18:04,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:04,985 INFO L225 Difference]: With dead ends: 7209 [2019-10-15 03:18:04,986 INFO L226 Difference]: Without dead ends: 4705 [2019-10-15 03:18:04,998 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:05,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2019-10-15 03:18:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 4704. [2019-10-15 03:18:05,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4704 states. [2019-10-15 03:18:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4704 states to 4704 states and 7547 transitions. [2019-10-15 03:18:05,279 INFO L78 Accepts]: Start accepts. Automaton has 4704 states and 7547 transitions. Word has length 237 [2019-10-15 03:18:05,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:05,280 INFO L462 AbstractCegarLoop]: Abstraction has 4704 states and 7547 transitions. [2019-10-15 03:18:05,280 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 4704 states and 7547 transitions. [2019-10-15 03:18:05,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 03:18:05,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:05,309 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:05,310 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:05,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:05,310 INFO L82 PathProgramCache]: Analyzing trace with hash 29774754, now seen corresponding path program 1 times [2019-10-15 03:18:05,310 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:05,310 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571982609] [2019-10-15 03:18:05,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:05,311 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:05,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:05,495 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:05,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571982609] [2019-10-15 03:18:05,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:18:05,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:18:05,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607437578] [2019-10-15 03:18:05,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:18:05,498 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:18:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:18:05,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:05,499 INFO L87 Difference]: Start difference. First operand 4704 states and 7547 transitions. Second operand 3 states. [2019-10-15 03:18:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:18:05,944 INFO L93 Difference]: Finished difference Result 13321 states and 21562 transitions. [2019-10-15 03:18:05,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:18:05,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-15 03:18:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:18:06,004 INFO L225 Difference]: With dead ends: 13321 [2019-10-15 03:18:06,004 INFO L226 Difference]: Without dead ends: 8673 [2019-10-15 03:18:06,026 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:18:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2019-10-15 03:18:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 8672. [2019-10-15 03:18:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8672 states. [2019-10-15 03:18:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 13947 transitions. [2019-10-15 03:18:06,582 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 13947 transitions. Word has length 238 [2019-10-15 03:18:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:18:06,582 INFO L462 AbstractCegarLoop]: Abstraction has 8672 states and 13947 transitions. [2019-10-15 03:18:06,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:18:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 13947 transitions. [2019-10-15 03:18:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 03:18:06,635 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:18:06,636 INFO L380 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:18:06,636 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:18:06,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:18:06,636 INFO L82 PathProgramCache]: Analyzing trace with hash 639273438, now seen corresponding path program 1 times [2019-10-15 03:18:06,637 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:18:06,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780454502] [2019-10-15 03:18:06,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:06,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:18:06,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:18:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-15 03:18:07,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780454502] [2019-10-15 03:18:07,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613520501] [2019-10-15 03:18:07,358 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 [2019-10-15 03:18:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:18:08,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 3168 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:18:08,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:18:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-15 03:18:08,201 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:18:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 03:18:08,641 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [826141485] [2019-10-15 03:18:08,672 INFO L162 IcfgInterpreter]: Started Sifa with 190 locations of interest [2019-10-15 03:18:08,672 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:18:08,680 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:18:08,688 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:18:08,688 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs