/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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:40,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:40,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:40,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:40,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:40,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:40,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:40,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:40,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:40,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:40,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:40,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:40,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:40,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:40,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:40,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:40,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:40,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:40,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:40,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:40,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:40,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:40,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:40,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:40,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:40,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:40,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:40,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:40,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:40,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:40,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:40,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:40,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:40,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:40,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:40,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:40,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:40,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:40,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:40,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:40,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:40,485 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 00:54:40,509 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:40,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:40,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:40,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:40,511 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:40,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:40,512 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:40,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:40,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:40,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:40,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:40,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:40,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:40,515 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:40,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:40,515 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:40,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:40,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:40,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:40,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:40,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:40,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:40,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:40,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:40,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:40,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:40,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:40,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:40,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:54:40,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:40,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:40,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:40,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:40,797 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:40,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2019-11-07 00:54:40,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a17b178/7a0f176b4e4a442caeeb035958dc01f0/FLAG7b14429f4 [2019-11-07 00:54:41,529 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:41,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2019-11-07 00:54:41,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a17b178/7a0f176b4e4a442caeeb035958dc01f0/FLAG7b14429f4 [2019-11-07 00:54:41,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a17b178/7a0f176b4e4a442caeeb035958dc01f0 [2019-11-07 00:54:41,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:41,743 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:41,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:41,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:41,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:41,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:41" (1/1) ... [2019-11-07 00:54:41,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427266d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:41, skipping insertion in model container [2019-11-07 00:54:41,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:41" (1/1) ... [2019-11-07 00:54:41,760 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:41,844 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:42,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:42,680 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:42,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:43,005 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:43,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43 WrapperNode [2019-11-07 00:54:43,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:43,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:43,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:43,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:43,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,220 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (1/1) ... [2019-11-07 00:54:43,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:43,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:43,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:43,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:43,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (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 00:54:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:43,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:43,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:43,306 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:43,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:43,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:54:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:54:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:43,309 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:54:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:43,310 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:43,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:43,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:43,313 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:43,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:43,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:43,315 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:43,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:43,315 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:43,315 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:43,315 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:43,316 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:43,316 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:43,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:43,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:43,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:43,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:43,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:43,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:43,319 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:43,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:54:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:43,321 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:43,322 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:43,323 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:54:43,324 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:43,324 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:43,324 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:43,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:43,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:43,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:43,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:43,325 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:43,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:43,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:43,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:43,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:43,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:43,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:43,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:43,330 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:43,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:54:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:43,335 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:43,336 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:43,337 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:43,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:43,339 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:43,340 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:43,342 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:54:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:43,343 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:54:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:54:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:43,344 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:54:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:45,418 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:45,419 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:45,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:45 BoogieIcfgContainer [2019-11-07 00:54:45,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:45,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:45,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:45,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:45,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:41" (1/3) ... [2019-11-07 00:54:45,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5038f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:45, skipping insertion in model container [2019-11-07 00:54:45,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:43" (2/3) ... [2019-11-07 00:54:45,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5038f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:45, skipping insertion in model container [2019-11-07 00:54:45,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:45" (3/3) ... [2019-11-07 00:54:45,429 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product34.cil.c [2019-11-07 00:54:45,438 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:45,453 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:45,465 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:45,507 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:45,508 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:45,508 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:45,508 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:45,508 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:45,516 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:45,517 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:45,517 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:45,559 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states. [2019-11-07 00:54:45,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:54:45,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:45,595 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:54:45,597 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:45,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:45,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2043582156, now seen corresponding path program 1 times [2019-11-07 00:54:45,613 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:45,614 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913565341] [2019-11-07 00:54:45,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:46,271 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913565341] [2019-11-07 00:54:46,272 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:46,272 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:46,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104795079] [2019-11-07 00:54:46,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:46,281 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:46,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:46,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:46,299 INFO L87 Difference]: Start difference. First operand 647 states. Second operand 2 states. [2019-11-07 00:54:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:46,412 INFO L93 Difference]: Finished difference Result 980 states and 1322 transitions. [2019-11-07 00:54:46,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:46,413 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-11-07 00:54:46,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:46,464 INFO L225 Difference]: With dead ends: 980 [2019-11-07 00:54:46,464 INFO L226 Difference]: Without dead ends: 618 [2019-11-07 00:54:46,477 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 00:54:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-11-07 00:54:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2019-11-07 00:54:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-11-07 00:54:46,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 838 transitions. [2019-11-07 00:54:46,612 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 838 transitions. Word has length 191 [2019-11-07 00:54:46,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:46,614 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 838 transitions. [2019-11-07 00:54:46,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:46,615 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 838 transitions. [2019-11-07 00:54:46,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-11-07 00:54:46,620 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:46,621 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:54:46,621 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:46,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1146061920, now seen corresponding path program 1 times [2019-11-07 00:54:46,622 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:46,622 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154365713] [2019-11-07 00:54:46,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:46,940 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:46,941 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154365713] [2019-11-07 00:54:46,941 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:46,941 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:46,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179536860] [2019-11-07 00:54:46,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:46,956 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:46,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:46,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:46,956 INFO L87 Difference]: Start difference. First operand 618 states and 838 transitions. Second operand 3 states. [2019-11-07 00:54:47,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:47,048 INFO L93 Difference]: Finished difference Result 963 states and 1284 transitions. [2019-11-07 00:54:47,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:47,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-11-07 00:54:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:47,060 INFO L225 Difference]: With dead ends: 963 [2019-11-07 00:54:47,060 INFO L226 Difference]: Without dead ends: 621 [2019-11-07 00:54:47,062 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 00:54:47,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-11-07 00:54:47,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-11-07 00:54:47,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-11-07 00:54:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 840 transitions. [2019-11-07 00:54:47,104 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 840 transitions. Word has length 192 [2019-11-07 00:54:47,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:47,106 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 840 transitions. [2019-11-07 00:54:47,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 840 transitions. [2019-11-07 00:54:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-11-07 00:54:47,113 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:47,113 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:47,113 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:47,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:47,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1233594516, now seen corresponding path program 1 times [2019-11-07 00:54:47,115 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:47,115 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463999125] [2019-11-07 00:54:47,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:47,343 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:47,344 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463999125] [2019-11-07 00:54:47,344 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:47,344 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:47,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387616048] [2019-11-07 00:54:47,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:47,349 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:47,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:47,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:47,350 INFO L87 Difference]: Start difference. First operand 620 states and 840 transitions. Second operand 3 states. [2019-11-07 00:54:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:47,402 INFO L93 Difference]: Finished difference Result 1218 states and 1681 transitions. [2019-11-07 00:54:47,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:47,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-11-07 00:54:47,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:47,409 INFO L225 Difference]: With dead ends: 1218 [2019-11-07 00:54:47,410 INFO L226 Difference]: Without dead ends: 663 [2019-11-07 00:54:47,412 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 00:54:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2019-11-07 00:54:47,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 662. [2019-11-07 00:54:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 662 states. [2019-11-07 00:54:47,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 912 transitions. [2019-11-07 00:54:47,446 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 912 transitions. Word has length 198 [2019-11-07 00:54:47,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:47,448 INFO L462 AbstractCegarLoop]: Abstraction has 662 states and 912 transitions. [2019-11-07 00:54:47,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 912 transitions. [2019-11-07 00:54:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-11-07 00:54:47,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:47,455 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:47,455 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1272697570, now seen corresponding path program 1 times [2019-11-07 00:54:47,458 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:47,458 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785527916] [2019-11-07 00:54:47,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:48,061 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785527916] [2019-11-07 00:54:48,062 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:48,062 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:54:48,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183546000] [2019-11-07 00:54:48,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:54:48,063 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:48,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:54:48,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:54:48,065 INFO L87 Difference]: Start difference. First operand 662 states and 912 transitions. Second operand 19 states. [2019-11-07 00:54:53,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:53,935 INFO L93 Difference]: Finished difference Result 2344 states and 3255 transitions. [2019-11-07 00:54:53,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:54:53,936 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-11-07 00:54:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:53,950 INFO L225 Difference]: With dead ends: 2344 [2019-11-07 00:54:53,951 INFO L226 Difference]: Without dead ends: 2015 [2019-11-07 00:54:53,955 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:54:53,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2019-11-07 00:54:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1978. [2019-11-07 00:54:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1978 states. [2019-11-07 00:54:54,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2751 transitions. [2019-11-07 00:54:54,056 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2751 transitions. Word has length 199 [2019-11-07 00:54:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:54,057 INFO L462 AbstractCegarLoop]: Abstraction has 1978 states and 2751 transitions. [2019-11-07 00:54:54,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:54:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2751 transitions. [2019-11-07 00:54:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:54:54,065 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:54,065 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:54,065 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:54,066 INFO L82 PathProgramCache]: Analyzing trace with hash -578893885, now seen corresponding path program 1 times [2019-11-07 00:54:54,066 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:54,066 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553836317] [2019-11-07 00:54:54,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:54,498 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553836317] [2019-11-07 00:54:54,498 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:54,499 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:54:54,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809750031] [2019-11-07 00:54:54,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:54:54,500 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:54,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:54:54,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:54,501 INFO L87 Difference]: Start difference. First operand 1978 states and 2751 transitions. Second operand 13 states. [2019-11-07 00:54:55,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:55,159 INFO L93 Difference]: Finished difference Result 3495 states and 4856 transitions. [2019-11-07 00:54:55,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:55,160 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2019-11-07 00:54:55,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:55,174 INFO L225 Difference]: With dead ends: 3495 [2019-11-07 00:54:55,175 INFO L226 Difference]: Without dead ends: 2112 [2019-11-07 00:54:55,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:54:55,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2019-11-07 00:54:55,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2112. [2019-11-07 00:54:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2019-11-07 00:54:55,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2968 transitions. [2019-11-07 00:54:55,303 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2968 transitions. Word has length 200 [2019-11-07 00:54:55,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:55,304 INFO L462 AbstractCegarLoop]: Abstraction has 2112 states and 2968 transitions. [2019-11-07 00:54:55,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:54:55,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2968 transitions. [2019-11-07 00:54:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:54:55,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:55,311 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:54:55,311 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:55,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1707911070, now seen corresponding path program 1 times [2019-11-07 00:54:55,312 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:55,312 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058414225] [2019-11-07 00:54:55,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:55,620 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:55,620 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058414225] [2019-11-07 00:54:55,620 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:55,621 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:54:55,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986049845] [2019-11-07 00:54:55,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:54:55,621 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:55,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:54:55,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:54:55,622 INFO L87 Difference]: Start difference. First operand 2112 states and 2968 transitions. Second operand 15 states. [2019-11-07 00:55:00,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:00,425 INFO L93 Difference]: Finished difference Result 3667 states and 5151 transitions. [2019-11-07 00:55:00,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:55:00,425 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-11-07 00:55:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:00,447 INFO L225 Difference]: With dead ends: 3667 [2019-11-07 00:55:00,447 INFO L226 Difference]: Without dead ends: 2230 [2019-11-07 00:55:00,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:55:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2019-11-07 00:55:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2193. [2019-11-07 00:55:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2019-11-07 00:55:00,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3108 transitions. [2019-11-07 00:55:00,585 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3108 transitions. Word has length 200 [2019-11-07 00:55:00,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:00,585 INFO L462 AbstractCegarLoop]: Abstraction has 2193 states and 3108 transitions. [2019-11-07 00:55:00,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:55:00,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3108 transitions. [2019-11-07 00:55:00,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-07 00:55:00,593 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:00,593 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:55:00,594 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:00,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1247468478, now seen corresponding path program 1 times [2019-11-07 00:55:00,595 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:00,595 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086842665] [2019-11-07 00:55:00,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-11-07 00:55:00,749 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086842665] [2019-11-07 00:55:00,749 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:00,749 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:00,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191601043] [2019-11-07 00:55:00,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:00,750 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:00,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:00,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:00,751 INFO L87 Difference]: Start difference. First operand 2193 states and 3108 transitions. Second operand 5 states. [2019-11-07 00:55:00,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:00,859 INFO L93 Difference]: Finished difference Result 3332 states and 4650 transitions. [2019-11-07 00:55:00,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:55:00,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-11-07 00:55:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:00,872 INFO L225 Difference]: With dead ends: 3332 [2019-11-07 00:55:00,872 INFO L226 Difference]: Without dead ends: 1767 [2019-11-07 00:55:00,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:55:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2019-11-07 00:55:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2019-11-07 00:55:00,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1767 states. [2019-11-07 00:55:01,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2502 transitions. [2019-11-07 00:55:01,040 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2502 transitions. Word has length 203 [2019-11-07 00:55:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:01,040 INFO L462 AbstractCegarLoop]: Abstraction has 1767 states and 2502 transitions. [2019-11-07 00:55:01,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:55:01,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2502 transitions. [2019-11-07 00:55:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:55:01,047 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:01,048 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:55:01,048 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:01,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:01,048 INFO L82 PathProgramCache]: Analyzing trace with hash -430417368, now seen corresponding path program 1 times [2019-11-07 00:55:01,049 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:01,049 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001747881] [2019-11-07 00:55:01,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:55:01,335 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001747881] [2019-11-07 00:55:01,335 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:01,335 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:55:01,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961570769] [2019-11-07 00:55:01,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:55:01,336 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:01,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:55:01,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:55:01,337 INFO L87 Difference]: Start difference. First operand 1767 states and 2502 transitions. Second operand 18 states. [2019-11-07 00:55:01,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:01,872 INFO L93 Difference]: Finished difference Result 2936 states and 4113 transitions. [2019-11-07 00:55:01,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:55:01,873 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 200 [2019-11-07 00:55:01,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:01,886 INFO L225 Difference]: With dead ends: 2936 [2019-11-07 00:55:01,886 INFO L226 Difference]: Without dead ends: 1799 [2019-11-07 00:55:01,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:55:01,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2019-11-07 00:55:01,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1797. [2019-11-07 00:55:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2019-11-07 00:55:01,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2531 transitions. [2019-11-07 00:55:01,967 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2531 transitions. Word has length 200 [2019-11-07 00:55:01,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:01,967 INFO L462 AbstractCegarLoop]: Abstraction has 1797 states and 2531 transitions. [2019-11-07 00:55:01,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:55:01,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2531 transitions. [2019-11-07 00:55:01,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:55:01,975 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:01,975 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:01,975 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:01,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:01,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1294591828, now seen corresponding path program 1 times [2019-11-07 00:55:01,976 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:01,976 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977660986] [2019-11-07 00:55:01,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:02,203 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:02,203 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977660986] [2019-11-07 00:55:02,204 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:02,204 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:02,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120563772] [2019-11-07 00:55:02,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:02,207 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:02,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:02,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:02,208 INFO L87 Difference]: Start difference. First operand 1797 states and 2531 transitions. Second operand 5 states. [2019-11-07 00:55:03,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:03,526 INFO L93 Difference]: Finished difference Result 4842 states and 6862 transitions. [2019-11-07 00:55:03,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:55:03,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-11-07 00:55:03,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:03,551 INFO L225 Difference]: With dead ends: 4842 [2019-11-07 00:55:03,551 INFO L226 Difference]: Without dead ends: 4045 [2019-11-07 00:55:03,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:55:03,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4045 states. [2019-11-07 00:55:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4045 to 4031. [2019-11-07 00:55:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4031 states. [2019-11-07 00:55:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 5704 transitions. [2019-11-07 00:55:03,746 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 5704 transitions. Word has length 200 [2019-11-07 00:55:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:03,748 INFO L462 AbstractCegarLoop]: Abstraction has 4031 states and 5704 transitions. [2019-11-07 00:55:03,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:55:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 5704 transitions. [2019-11-07 00:55:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:55:03,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:03,759 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:03,760 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:03,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1274254453, now seen corresponding path program 1 times [2019-11-07 00:55:03,760 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:03,760 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690602626] [2019-11-07 00:55:03,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:04,036 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690602626] [2019-11-07 00:55:04,037 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:04,037 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:55:04,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436299101] [2019-11-07 00:55:04,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:55:04,039 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:04,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:55:04,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:55:04,040 INFO L87 Difference]: Start difference. First operand 4031 states and 5704 transitions. Second operand 7 states. [2019-11-07 00:55:06,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:06,627 INFO L93 Difference]: Finished difference Result 13480 states and 20830 transitions. [2019-11-07 00:55:06,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:55:06,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-11-07 00:55:06,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:06,702 INFO L225 Difference]: With dead ends: 13480 [2019-11-07 00:55:06,702 INFO L226 Difference]: Without dead ends: 10373 [2019-11-07 00:55:06,722 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:55:06,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10373 states. [2019-11-07 00:55:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10373 to 10363. [2019-11-07 00:55:07,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10363 states. [2019-11-07 00:55:07,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 15752 transitions. [2019-11-07 00:55:07,378 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 15752 transitions. Word has length 200 [2019-11-07 00:55:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:07,379 INFO L462 AbstractCegarLoop]: Abstraction has 10363 states and 15752 transitions. [2019-11-07 00:55:07,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:55:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 15752 transitions. [2019-11-07 00:55:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:55:07,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:07,388 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:07,388 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:07,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:07,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1884885610, now seen corresponding path program 1 times [2019-11-07 00:55:07,389 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:07,389 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023660243] [2019-11-07 00:55:07,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:08,582 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023660243] [2019-11-07 00:55:08,582 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:08,582 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-11-07 00:55:08,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313982531] [2019-11-07 00:55:08,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 00:55:08,583 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:08,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 00:55:08,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:55:08,584 INFO L87 Difference]: Start difference. First operand 10363 states and 15752 transitions. Second operand 28 states. [2019-11-07 00:55:09,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:09,780 INFO L93 Difference]: Finished difference Result 20153 states and 31327 transitions. [2019-11-07 00:55:09,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-07 00:55:09,780 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 201 [2019-11-07 00:55:09,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:09,845 INFO L225 Difference]: With dead ends: 20153 [2019-11-07 00:55:09,845 INFO L226 Difference]: Without dead ends: 10714 [2019-11-07 00:55:09,889 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-11-07 00:55:09,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2019-11-07 00:55:10,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 10689. [2019-11-07 00:55:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10689 states. [2019-11-07 00:55:10,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10689 states to 10689 states and 16211 transitions. [2019-11-07 00:55:10,447 INFO L78 Accepts]: Start accepts. Automaton has 10689 states and 16211 transitions. Word has length 201 [2019-11-07 00:55:10,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:10,448 INFO L462 AbstractCegarLoop]: Abstraction has 10689 states and 16211 transitions. [2019-11-07 00:55:10,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-07 00:55:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10689 states and 16211 transitions. [2019-11-07 00:55:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:55:10,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:10,457 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:10,458 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:10,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:10,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1510972251, now seen corresponding path program 1 times [2019-11-07 00:55:10,458 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:10,459 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174088305] [2019-11-07 00:55:10,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:10,698 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:10,698 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174088305] [2019-11-07 00:55:10,699 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:10,699 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 00:55:10,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377263303] [2019-11-07 00:55:10,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 00:55:10,700 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:10,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 00:55:10,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:55:10,700 INFO L87 Difference]: Start difference. First operand 10689 states and 16211 transitions. Second operand 10 states. [2019-11-07 00:55:10,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:10,946 INFO L93 Difference]: Finished difference Result 10788 states and 16397 transitions. [2019-11-07 00:55:10,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 00:55:10,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-11-07 00:55:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:10,998 INFO L225 Difference]: With dead ends: 10788 [2019-11-07 00:55:10,998 INFO L226 Difference]: Without dead ends: 10785 [2019-11-07 00:55:11,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:55:11,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10785 states. [2019-11-07 00:55:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10785 to 10785. [2019-11-07 00:55:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10785 states. [2019-11-07 00:55:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10785 states to 10785 states and 16363 transitions. [2019-11-07 00:55:11,666 INFO L78 Accepts]: Start accepts. Automaton has 10785 states and 16363 transitions. Word has length 205 [2019-11-07 00:55:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:11,667 INFO L462 AbstractCegarLoop]: Abstraction has 10785 states and 16363 transitions. [2019-11-07 00:55:11,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 00:55:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 10785 states and 16363 transitions. [2019-11-07 00:55:11,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-11-07 00:55:11,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:11,680 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:11,680 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:11,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:11,681 INFO L82 PathProgramCache]: Analyzing trace with hash -125913428, now seen corresponding path program 1 times [2019-11-07 00:55:11,681 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:11,681 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304741511] [2019-11-07 00:55:11,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:11,832 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304741511] [2019-11-07 00:55:11,832 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:11,832 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:11,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530241680] [2019-11-07 00:55:11,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:11,833 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:11,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:11,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:11,834 INFO L87 Difference]: Start difference. First operand 10785 states and 16363 transitions. Second operand 5 states. [2019-11-07 00:55:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:12,090 INFO L93 Difference]: Finished difference Result 20853 states and 32089 transitions. [2019-11-07 00:55:12,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:55:12,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-11-07 00:55:12,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:12,153 INFO L225 Difference]: With dead ends: 20853 [2019-11-07 00:55:12,153 INFO L226 Difference]: Without dead ends: 11040 [2019-11-07 00:55:12,185 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:12,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11040 states. [2019-11-07 00:55:12,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11040 to 10889. [2019-11-07 00:55:12,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10889 states. [2019-11-07 00:55:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10889 states to 10889 states and 16480 transitions. [2019-11-07 00:55:12,765 INFO L78 Accepts]: Start accepts. Automaton has 10889 states and 16480 transitions. Word has length 210 [2019-11-07 00:55:12,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:12,766 INFO L462 AbstractCegarLoop]: Abstraction has 10889 states and 16480 transitions. [2019-11-07 00:55:12,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:55:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 10889 states and 16480 transitions. [2019-11-07 00:55:12,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-11-07 00:55:12,779 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:12,779 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-07 00:55:12,780 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:12,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:12,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1745370427, now seen corresponding path program 1 times [2019-11-07 00:55:12,780 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:12,780 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698579635] [2019-11-07 00:55:12,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:13,147 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698579635] [2019-11-07 00:55:13,148 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:13,148 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:55:13,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813214519] [2019-11-07 00:55:13,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:55:13,150 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:13,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:55:13,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:55:13,151 INFO L87 Difference]: Start difference. First operand 10889 states and 16480 transitions. Second operand 6 states.