/usr/bin/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_spec8_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:14,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:14,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:14,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:14,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:14,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:14,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:14,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:14,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:14,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:14,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:14,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:14,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:14,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:14,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:14,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:14,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:14,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:14,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:14,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:14,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:14,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:14,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:14,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:14,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:14,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:14,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:14,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:14,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:14,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:14,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:14,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:14,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:14,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:14,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:14,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:14,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:14,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:14,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:14,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:14,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:14,486 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 [2019-11-07 04:26:14,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:14,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:14,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:14,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:14,503 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:14,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:14,504 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:14,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:14,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:14,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:14,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:14,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:14,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:14,505 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:14,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:14,506 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:14,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:14,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:14,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:14,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:14,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:14,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:14,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:14,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:14,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:14,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:14,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:14,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:14,508 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 [2019-11-07 04:26:14,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:26:14,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:26:14,829 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:26:14,831 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:26:14,831 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:26:14,832 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-11-07 04:26:14,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd73a391/afbd35961bd34bc99f991292cb5c598f/FLAG447c84e7a [2019-11-07 04:26:15,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:26:15,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product34.cil.c [2019-11-07 04:26:15,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd73a391/afbd35961bd34bc99f991292cb5c598f/FLAG447c84e7a [2019-11-07 04:26:15,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd73a391/afbd35961bd34bc99f991292cb5c598f [2019-11-07 04:26:15,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:26:15,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:26:15,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:15,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:26:15,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:26:15,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:15" (1/1) ... [2019-11-07 04:26:15,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522679b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:15, skipping insertion in model container [2019-11-07 04:26:15,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:15" (1/1) ... [2019-11-07 04:26:15,772 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:26:15,857 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:26:16,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:16,703 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:26:16,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:16,974 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:26:16,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16 WrapperNode [2019-11-07 04:26:16,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:16,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:26:16,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:26:16,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:26:16,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:16,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:17,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:17,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:17,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:17,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:17,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (1/1) ... [2019-11-07 04:26:17,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:26:17,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:26:17,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:26:17,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:26:17,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (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 [2019-11-07 04:26:17,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:26:17,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:26:17,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:17,283 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:26:17,283 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:26:17,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:26:17,285 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:26:17,286 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:26:17,287 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:26:17,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:26:17,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:26:17,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:26:17,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:26:17,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:26:17,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:26:17,289 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:26:17,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:26:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:26:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:26:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:26:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:26:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:26:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:26:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:26:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:26:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:26:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:26:17,295 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:26:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:26:17,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:26:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:26:17,297 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:26:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:26:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:26:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:26:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:26:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:26:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:26:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-07 04:26:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-07 04:26:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:26:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:26:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:26:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:26:17,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:26:17,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:26:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:26:17,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:26:17,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:26:17,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:26:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:26:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:26:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:26:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:26:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:26:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:26:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 04:26:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:26:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:26:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:26:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 04:26:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 04:26:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:26:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:26:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 04:26:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:26:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 04:26:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:26:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:26:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:26:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:26:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:26:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:26:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:26:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:26:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:26:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 04:26:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 04:26:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:26:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 04:26:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:26:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:26:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:26:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:26:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:26:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:26:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:26:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:26:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:26:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:26:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:26:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:26:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:26:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:26:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:26:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:26:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:26:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:26:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:26:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:26:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:26:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:26:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:26:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 04:26:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 04:26:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:26:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:26:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:26:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:26:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:26:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:26:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:26:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:26:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:26:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:26:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:26:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:26:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:26:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:26:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:26:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:26:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:26:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:26:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:26:17,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:26:17,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:26:17,330 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:26:17,330 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:26:17,330 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:26:17,331 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:26:17,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:26:17,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:26:17,332 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:26:17,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:26:17,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:26:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:26:17,342 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:26:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:26:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:26:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:26:17,343 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:26:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:26:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:26:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:26:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:26:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:26:17,344 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:26:17,346 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:26:17,346 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:26:17,346 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:26:17,346 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:26:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-11-07 04:26:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-11-07 04:26:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:26:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:26:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:26:17,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:26:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:26:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:26:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:26:17,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:26:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:26:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:26:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:26:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:26:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:26:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:26:17,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:26:17,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:26:17,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:26:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:26:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:26:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:26:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:26:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:26:17,354 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:26:17,355 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:26:17,356 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:26:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 04:26:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 04:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 04:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 04:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 04:26:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 04:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 04:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:26:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:26:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 04:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 04:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:26:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:26:22,239 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:26:22,240 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:26:22,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:26:22 BoogieIcfgContainer [2019-11-07 04:26:22,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:26:22,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:26:22,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:26:22,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:26:22,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:26:15" (1/3) ... [2019-11-07 04:26:22,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772392c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:26:22, skipping insertion in model container [2019-11-07 04:26:22,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:16" (2/3) ... [2019-11-07 04:26:22,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772392c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:26:22, skipping insertion in model container [2019-11-07 04:26:22,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:26:22" (3/3) ... [2019-11-07 04:26:22,250 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product34.cil.c [2019-11-07 04:26:22,261 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:26:22,270 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:26:22,282 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:26:22,312 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:26:22,312 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:26:22,312 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:26:22,313 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:26:22,313 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:26:22,313 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:26:22,313 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:26:22,313 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:26:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states. [2019-11-07 04:26:22,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-11-07 04:26:22,360 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:22,362 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:22,364 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:22,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:22,371 INFO L82 PathProgramCache]: Analyzing trace with hash -75206764, now seen corresponding path program 1 times [2019-11-07 04:26:22,382 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:22,382 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323739815] [2019-11-07 04:26:22,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:23,076 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323739815] [2019-11-07 04:26:23,077 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:23,077 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:26:23,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033184338] [2019-11-07 04:26:23,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:26:23,087 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:23,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:26:23,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:26:23,105 INFO L87 Difference]: Start difference. First operand 458 states. Second operand 2 states. [2019-11-07 04:26:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:23,204 INFO L93 Difference]: Finished difference Result 698 states and 832 transitions. [2019-11-07 04:26:23,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:26:23,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-11-07 04:26:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:23,226 INFO L225 Difference]: With dead ends: 698 [2019-11-07 04:26:23,227 INFO L226 Difference]: Without dead ends: 431 [2019-11-07 04:26:23,233 INFO L630 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 [2019-11-07 04:26:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2019-11-07 04:26:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2019-11-07 04:26:23,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-11-07 04:26:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 510 transitions. [2019-11-07 04:26:23,327 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 510 transitions. Word has length 132 [2019-11-07 04:26:23,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:23,329 INFO L462 AbstractCegarLoop]: Abstraction has 431 states and 510 transitions. [2019-11-07 04:26:23,329 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:26:23,329 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 510 transitions. [2019-11-07 04:26:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-07 04:26:23,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:23,335 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:23,336 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:23,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:23,336 INFO L82 PathProgramCache]: Analyzing trace with hash -2135594899, now seen corresponding path program 1 times [2019-11-07 04:26:23,337 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:23,337 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699118823] [2019-11-07 04:26:23,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:23,586 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699118823] [2019-11-07 04:26:23,586 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:23,586 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:23,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729292342] [2019-11-07 04:26:23,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:23,590 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:23,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:23,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:23,591 INFO L87 Difference]: Start difference. First operand 431 states and 510 transitions. Second operand 3 states. [2019-11-07 04:26:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:23,653 INFO L93 Difference]: Finished difference Result 683 states and 800 transitions. [2019-11-07 04:26:23,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:23,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-11-07 04:26:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:23,659 INFO L225 Difference]: With dead ends: 683 [2019-11-07 04:26:23,660 INFO L226 Difference]: Without dead ends: 433 [2019-11-07 04:26:23,662 INFO L630 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 [2019-11-07 04:26:23,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-11-07 04:26:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-11-07 04:26:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-11-07 04:26:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 512 transitions. [2019-11-07 04:26:23,704 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 512 transitions. Word has length 133 [2019-11-07 04:26:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:23,705 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 512 transitions. [2019-11-07 04:26:23,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:23,705 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 512 transitions. [2019-11-07 04:26:23,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-11-07 04:26:23,709 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:23,709 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:23,709 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:23,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:23,710 INFO L82 PathProgramCache]: Analyzing trace with hash -128607397, now seen corresponding path program 1 times [2019-11-07 04:26:23,710 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:23,710 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871806083] [2019-11-07 04:26:23,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:23,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:26:23,906 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871806083] [2019-11-07 04:26:23,906 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:23,907 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:23,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778158758] [2019-11-07 04:26:23,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:23,910 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:23,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:23,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:23,911 INFO L87 Difference]: Start difference. First operand 433 states and 512 transitions. Second operand 3 states. [2019-11-07 04:26:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:23,984 INFO L93 Difference]: Finished difference Result 850 states and 1034 transitions. [2019-11-07 04:26:23,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:23,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-11-07 04:26:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:23,991 INFO L225 Difference]: With dead ends: 850 [2019-11-07 04:26:23,992 INFO L226 Difference]: Without dead ends: 475 [2019-11-07 04:26:23,994 INFO L630 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 [2019-11-07 04:26:23,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2019-11-07 04:26:24,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 474. [2019-11-07 04:26:24,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-11-07 04:26:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 583 transitions. [2019-11-07 04:26:24,066 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 583 transitions. Word has length 138 [2019-11-07 04:26:24,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:24,067 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 583 transitions. [2019-11-07 04:26:24,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:24,067 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 583 transitions. [2019-11-07 04:26:24,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-11-07 04:26:24,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:24,075 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:24,076 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:24,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:24,076 INFO L82 PathProgramCache]: Analyzing trace with hash -516144309, now seen corresponding path program 1 times [2019-11-07 04:26:24,076 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:24,076 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100499215] [2019-11-07 04:26:24,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:26:24,369 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100499215] [2019-11-07 04:26:24,370 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:24,370 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:24,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181269471] [2019-11-07 04:26:24,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:24,373 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:24,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:24,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:24,373 INFO L87 Difference]: Start difference. First operand 474 states and 583 transitions. Second operand 3 states. [2019-11-07 04:26:24,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:24,425 INFO L93 Difference]: Finished difference Result 793 states and 957 transitions. [2019-11-07 04:26:24,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:24,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-11-07 04:26:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:24,432 INFO L225 Difference]: With dead ends: 793 [2019-11-07 04:26:24,433 INFO L226 Difference]: Without dead ends: 555 [2019-11-07 04:26:24,434 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:24,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2019-11-07 04:26:24,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 554. [2019-11-07 04:26:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-11-07 04:26:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 674 transitions. [2019-11-07 04:26:24,480 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 674 transitions. Word has length 139 [2019-11-07 04:26:24,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:24,482 INFO L462 AbstractCegarLoop]: Abstraction has 554 states and 674 transitions. [2019-11-07 04:26:24,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:24,482 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 674 transitions. [2019-11-07 04:26:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-11-07 04:26:24,488 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:24,489 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:24,489 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:24,490 INFO L82 PathProgramCache]: Analyzing trace with hash -22217736, now seen corresponding path program 1 times [2019-11-07 04:26:24,490 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:24,491 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458398881] [2019-11-07 04:26:24,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:25,012 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:25,013 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458398881] [2019-11-07 04:26:25,013 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:25,013 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 04:26:25,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329479074] [2019-11-07 04:26:25,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 04:26:25,015 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:25,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 04:26:25,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-07 04:26:25,016 INFO L87 Difference]: Start difference. First operand 554 states and 674 transitions. Second operand 14 states. [2019-11-07 04:26:29,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:29,021 INFO L93 Difference]: Finished difference Result 1324 states and 1599 transitions. [2019-11-07 04:26:29,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:26:29,022 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 250 [2019-11-07 04:26:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:29,030 INFO L225 Difference]: With dead ends: 1324 [2019-11-07 04:26:29,030 INFO L226 Difference]: Without dead ends: 1028 [2019-11-07 04:26:29,032 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:26:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2019-11-07 04:26:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1019. [2019-11-07 04:26:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-11-07 04:26:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1248 transitions. [2019-11-07 04:26:29,090 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1248 transitions. Word has length 250 [2019-11-07 04:26:29,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:29,090 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 1248 transitions. [2019-11-07 04:26:29,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 04:26:29,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1248 transitions. [2019-11-07 04:26:29,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-11-07 04:26:29,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:29,098 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:29,098 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:29,099 INFO L82 PathProgramCache]: Analyzing trace with hash -954850071, now seen corresponding path program 1 times [2019-11-07 04:26:29,099 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:29,099 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026186043] [2019-11-07 04:26:29,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:29,355 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026186043] [2019-11-07 04:26:29,356 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:29,356 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:29,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985405636] [2019-11-07 04:26:29,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:29,357 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:29,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:29,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:29,358 INFO L87 Difference]: Start difference. First operand 1019 states and 1248 transitions. Second operand 3 states. [2019-11-07 04:26:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:29,423 INFO L93 Difference]: Finished difference Result 2144 states and 2717 transitions. [2019-11-07 04:26:29,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:29,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 272 [2019-11-07 04:26:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:29,435 INFO L225 Difference]: With dead ends: 2144 [2019-11-07 04:26:29,435 INFO L226 Difference]: Without dead ends: 1183 [2019-11-07 04:26:29,440 INFO L630 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 [2019-11-07 04:26:29,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-11-07 04:26:29,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1181. [2019-11-07 04:26:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2019-11-07 04:26:29,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1526 transitions. [2019-11-07 04:26:29,527 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1526 transitions. Word has length 272 [2019-11-07 04:26:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:29,528 INFO L462 AbstractCegarLoop]: Abstraction has 1181 states and 1526 transitions. [2019-11-07 04:26:29,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1526 transitions. [2019-11-07 04:26:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-11-07 04:26:29,539 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:29,540 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:29,540 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:29,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:29,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1511500981, now seen corresponding path program 1 times [2019-11-07 04:26:29,541 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:29,542 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389143015] [2019-11-07 04:26:29,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:29,948 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-11-07 04:26:29,948 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389143015] [2019-11-07 04:26:29,949 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:29,949 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:29,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360050108] [2019-11-07 04:26:29,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:29,951 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:29,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:29,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:29,952 INFO L87 Difference]: Start difference. First operand 1181 states and 1526 transitions. Second operand 3 states. [2019-11-07 04:26:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:30,032 INFO L93 Difference]: Finished difference Result 2610 states and 3519 transitions. [2019-11-07 04:26:30,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:30,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 278 [2019-11-07 04:26:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:30,042 INFO L225 Difference]: With dead ends: 2610 [2019-11-07 04:26:30,042 INFO L226 Difference]: Without dead ends: 1487 [2019-11-07 04:26:30,047 INFO L630 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 [2019-11-07 04:26:30,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2019-11-07 04:26:30,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1485. [2019-11-07 04:26:30,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2019-11-07 04:26:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2046 transitions. [2019-11-07 04:26:30,138 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2046 transitions. Word has length 278 [2019-11-07 04:26:30,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:30,141 INFO L462 AbstractCegarLoop]: Abstraction has 1485 states and 2046 transitions. [2019-11-07 04:26:30,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2046 transitions. [2019-11-07 04:26:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2019-11-07 04:26:30,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:30,152 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:30,152 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:30,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:30,152 INFO L82 PathProgramCache]: Analyzing trace with hash 999705909, now seen corresponding path program 1 times [2019-11-07 04:26:30,153 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:30,153 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505855260] [2019-11-07 04:26:30,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-11-07 04:26:30,375 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505855260] [2019-11-07 04:26:30,375 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:30,375 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:30,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611998609] [2019-11-07 04:26:30,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:30,377 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:30,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:30,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:30,378 INFO L87 Difference]: Start difference. First operand 1485 states and 2046 transitions. Second operand 3 states. [2019-11-07 04:26:30,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:30,477 INFO L93 Difference]: Finished difference Result 3498 states and 5039 transitions. [2019-11-07 04:26:30,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:30,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2019-11-07 04:26:30,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:30,492 INFO L225 Difference]: With dead ends: 3498 [2019-11-07 04:26:30,492 INFO L226 Difference]: Without dead ends: 2071 [2019-11-07 04:26:30,498 INFO L630 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 [2019-11-07 04:26:30,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2019-11-07 04:26:30,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2019-11-07 04:26:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2019-11-07 04:26:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3038 transitions. [2019-11-07 04:26:30,618 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3038 transitions. Word has length 279 [2019-11-07 04:26:30,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:30,619 INFO L462 AbstractCegarLoop]: Abstraction has 2069 states and 3038 transitions. [2019-11-07 04:26:30,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3038 transitions. [2019-11-07 04:26:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-11-07 04:26:30,635 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:30,635 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:30,636 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:30,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:30,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1442152917, now seen corresponding path program 1 times [2019-11-07 04:26:30,636 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:30,637 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475210102] [2019-11-07 04:26:30,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-11-07 04:26:31,077 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475210102] [2019-11-07 04:26:31,078 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:31,078 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:31,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362736920] [2019-11-07 04:26:31,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:31,079 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:31,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:31,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:31,080 INFO L87 Difference]: Start difference. First operand 2069 states and 3038 transitions. Second operand 3 states. [2019-11-07 04:26:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:31,275 INFO L93 Difference]: Finished difference Result 5202 states and 7935 transitions. [2019-11-07 04:26:31,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:31,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 280 [2019-11-07 04:26:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:31,301 INFO L225 Difference]: With dead ends: 5202 [2019-11-07 04:26:31,302 INFO L226 Difference]: Without dead ends: 3191 [2019-11-07 04:26:31,313 INFO L630 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 [2019-11-07 04:26:31,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3191 states. [2019-11-07 04:26:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3191 to 3189. [2019-11-07 04:26:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2019-11-07 04:26:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4926 transitions. [2019-11-07 04:26:31,544 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4926 transitions. Word has length 280 [2019-11-07 04:26:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:31,544 INFO L462 AbstractCegarLoop]: Abstraction has 3189 states and 4926 transitions. [2019-11-07 04:26:31,545 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:31,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4926 transitions. [2019-11-07 04:26:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-11-07 04:26:31,565 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:31,565 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:31,566 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:31,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:31,566 INFO L82 PathProgramCache]: Analyzing trace with hash -347043737, now seen corresponding path program 1 times [2019-11-07 04:26:31,566 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:31,567 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128787078] [2019-11-07 04:26:31,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:31,819 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:31,819 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128787078] [2019-11-07 04:26:31,820 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:31,820 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:31,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166156058] [2019-11-07 04:26:31,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:31,821 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:31,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:31,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:31,822 INFO L87 Difference]: Start difference. First operand 3189 states and 4926 transitions. Second operand 3 states. [2019-11-07 04:26:32,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:32,077 INFO L93 Difference]: Finished difference Result 8466 states and 13439 transitions. [2019-11-07 04:26:32,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:32,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-11-07 04:26:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:32,115 INFO L225 Difference]: With dead ends: 8466 [2019-11-07 04:26:32,115 INFO L226 Difference]: Without dead ends: 5335 [2019-11-07 04:26:32,128 INFO L630 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 [2019-11-07 04:26:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2019-11-07 04:26:32,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 5333. [2019-11-07 04:26:32,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5333 states. [2019-11-07 04:26:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5333 states to 5333 states and 8510 transitions. [2019-11-07 04:26:32,440 INFO L78 Accepts]: Start accepts. Automaton has 5333 states and 8510 transitions. Word has length 276 [2019-11-07 04:26:32,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:32,441 INFO L462 AbstractCegarLoop]: Abstraction has 5333 states and 8510 transitions. [2019-11-07 04:26:32,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 5333 states and 8510 transitions. [2019-11-07 04:26:32,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-11-07 04:26:32,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:32,473 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:32,473 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:32,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:32,474 INFO L82 PathProgramCache]: Analyzing trace with hash -506307271, now seen corresponding path program 1 times [2019-11-07 04:26:32,474 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:32,474 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383069832] [2019-11-07 04:26:32,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:32,678 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383069832] [2019-11-07 04:26:32,678 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:26:32,679 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:26:32,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482777474] [2019-11-07 04:26:32,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:26:32,680 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:26:32,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:26:32,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:26:32,681 INFO L87 Difference]: Start difference. First operand 5333 states and 8510 transitions. Second operand 3 states. [2019-11-07 04:26:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:26:33,249 INFO L93 Difference]: Finished difference Result 14706 states and 23871 transitions. [2019-11-07 04:26:33,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:26:33,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 277 [2019-11-07 04:26:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:26:33,315 INFO L225 Difference]: With dead ends: 14706 [2019-11-07 04:26:33,315 INFO L226 Difference]: Without dead ends: 9431 [2019-11-07 04:26:33,336 INFO L630 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 [2019-11-07 04:26:33,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9431 states. [2019-11-07 04:26:33,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9431 to 9429. [2019-11-07 04:26:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9429 states. [2019-11-07 04:26:33,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9429 states to 9429 states and 15294 transitions. [2019-11-07 04:26:33,893 INFO L78 Accepts]: Start accepts. Automaton has 9429 states and 15294 transitions. Word has length 277 [2019-11-07 04:26:33,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:26:33,894 INFO L462 AbstractCegarLoop]: Abstraction has 9429 states and 15294 transitions. [2019-11-07 04:26:33,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:26:33,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9429 states and 15294 transitions. [2019-11-07 04:26:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2019-11-07 04:26:33,953 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:26:33,953 INFO L410 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:26:33,953 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:26:33,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:26:33,954 INFO L82 PathProgramCache]: Analyzing trace with hash 396892423, now seen corresponding path program 1 times [2019-11-07 04:26:33,954 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:26:33,954 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366032314] [2019-11-07 04:26:33,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:26:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:34,783 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366032314] [2019-11-07 04:26:34,783 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771930857] [2019-11-07 04:26:34,783 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 [2019-11-07 04:26:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:26:35,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:26:35,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:26:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-11-07 04:26:35,760 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:26:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 04:26:36,441 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1240087182] [2019-11-07 04:26:36,482 INFO L159 IcfgInterpreter]: Started Sifa with 225 locations of interest [2019-11-07 04:26:36,483 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:26:36,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:26:36,497 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:26:36,498 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs