/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_spec0_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:45:46,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:45:46,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:45:46,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:45:46,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:45:46,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:45:46,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:45:46,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:45:46,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:45:46,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:45:46,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:45:46,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:45:46,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:45:46,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:45:46,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:45:46,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:45:46,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:45:46,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:45:46,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:45:46,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:45:46,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:45:46,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:45:46,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:45:46,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:45:46,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:45:46,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:45:46,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:45:46,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:45:46,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:45:46,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:45:46,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:45:46,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:45:46,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:45:46,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:45:46,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:45:46,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:45:46,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:45:46,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:45:46,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:45:46,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:45:46,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:45:46,806 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 00:45:46,836 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:45:46,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:45:46,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:45:46,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:45:46,838 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:45:46,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:45:46,838 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:45:46,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:45:46,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:45:46,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:45:46,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:45:46,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:45:46,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:45:46,839 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:45:46,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:45:46,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:45:46,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:45:46,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:45:46,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:45:46,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:45:46,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:45:46,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:45:46,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:45:46,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:45:46,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:45:46,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:45:46,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:45:46,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:45:46,847 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 00:45:47,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:45:47,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:45:47,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:45:47,153 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:45:47,153 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:45:47,154 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-11-07 00:45:47,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84d3c49f/f0759fb867f44087a0db55f18dbfae6f/FLAG5b5da7c66 [2019-11-07 00:45:47,879 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:45:47,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product22.cil.c [2019-11-07 00:45:47,906 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84d3c49f/f0759fb867f44087a0db55f18dbfae6f/FLAG5b5da7c66 [2019-11-07 00:45:48,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c84d3c49f/f0759fb867f44087a0db55f18dbfae6f [2019-11-07 00:45:48,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:45:48,084 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:45:48,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:45:48,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:45:48,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:45:48,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:45:48" (1/1) ... [2019-11-07 00:45:48,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b07383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:48, skipping insertion in model container [2019-11-07 00:45:48,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:45:48" (1/1) ... [2019-11-07 00:45:48,101 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:45:48,182 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:45:48,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:45:48,970 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:45:49,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:45:49,231 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:45:49,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49 WrapperNode [2019-11-07 00:45:49,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:45:49,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:45:49,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:45:49,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:45:49,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (1/1) ... [2019-11-07 00:45:49,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:45:49,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:45:49,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:45:49,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:45:49,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (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 00:45:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:45:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:45:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:45:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:45:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:45:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:45:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:45:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:45:49,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:45:49,509 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:45:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:45:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:45:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:45:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:45:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:45:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:45:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:45:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:45:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:45:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:45:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:45:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:45:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:45:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:45:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:45:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:45:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:45:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:45:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:45:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:45:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:45:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:45:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:45:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:45:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:45:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:45:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:45:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:45:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:45:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:45:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:45:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:45:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:45:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:45:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:45:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:45:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:45:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-11-07 00:45:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:45:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:45:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:45:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:45:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:45:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:45:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:45:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:45:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:45:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:45:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:45:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:45:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:45:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:45:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:45:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:45:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:45:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:45:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:45:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:45:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:45:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:45:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:45:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:45:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:45:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:45:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:45:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:45:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:45:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:45:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:45:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:45:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:45:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 00:45:49,531 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:45:49,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:45:49,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:45:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:45:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:45:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:45:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:45:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:45:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:45:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:45:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:45:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:45:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:45:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:45:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:45:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:45:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:45:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:45:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:45:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:45:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:45:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:45:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:45:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:45:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:45:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:45:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:45:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:45:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:45:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:45:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:45:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:45:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:45:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:45:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:45:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:45:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:45:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:45:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:45:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:45:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:45:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:45:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:45:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:45:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:45:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:45:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:45:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:45:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:45:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:45:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:45:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:45:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:45:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:45:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:45:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:45:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:45:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:45:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:45:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:45:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:45:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:45:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:45:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:45:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:45:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:45:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:45:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:45:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:45:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:45:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:45:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:45:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:45:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:45:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:45:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:45:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 00:45:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:45:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:45:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:45:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:45:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:45:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:45:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:45:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:45:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:45:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:45:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:45:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:45:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:45:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:45:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:45:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:45:51,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:45:51,621 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:45:51,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:45:51 BoogieIcfgContainer [2019-11-07 00:45:51,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:45:51,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:45:51,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:45:51,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:45:51,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:45:48" (1/3) ... [2019-11-07 00:45:51,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba2f767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:45:51, skipping insertion in model container [2019-11-07 00:45:51,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:45:49" (2/3) ... [2019-11-07 00:45:51,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba2f767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:45:51, skipping insertion in model container [2019-11-07 00:45:51,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:45:51" (3/3) ... [2019-11-07 00:45:51,631 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2019-11-07 00:45:51,641 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:45:51,651 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:45:51,663 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:45:51,702 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:45:51,702 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:45:51,702 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:45:51,702 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:45:51,702 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:45:51,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:45:51,703 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:45:51,703 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:45:51,740 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states. [2019-11-07 00:45:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 00:45:51,780 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:45:51,781 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 00:45:51,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:45:51,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:45:51,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1106336923, now seen corresponding path program 1 times [2019-11-07 00:45:51,803 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:45:51,804 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194006197] [2019-11-07 00:45:51,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:45:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:45:52,466 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 00:45:52,467 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194006197] [2019-11-07 00:45:52,468 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:45:52,468 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:45:52,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673666847] [2019-11-07 00:45:52,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:45:52,477 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:45:52,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:45:52,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:45:52,495 INFO L87 Difference]: Start difference. First operand 505 states. Second operand 2 states. [2019-11-07 00:45:52,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:45:52,611 INFO L93 Difference]: Finished difference Result 741 states and 976 transitions. [2019-11-07 00:45:52,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:45:52,613 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 200 [2019-11-07 00:45:52,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:45:52,654 INFO L225 Difference]: With dead ends: 741 [2019-11-07 00:45:52,654 INFO L226 Difference]: Without dead ends: 482 [2019-11-07 00:45:52,665 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 00:45:52,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2019-11-07 00:45:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2019-11-07 00:45:52,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2019-11-07 00:45:52,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 638 transitions. [2019-11-07 00:45:52,811 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 638 transitions. Word has length 200 [2019-11-07 00:45:52,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:45:52,815 INFO L462 AbstractCegarLoop]: Abstraction has 482 states and 638 transitions. [2019-11-07 00:45:52,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:45:52,815 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 638 transitions. [2019-11-07 00:45:52,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:45:52,825 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:45:52,826 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] [2019-11-07 00:45:52,826 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:45:52,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:45:52,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2011171209, now seen corresponding path program 1 times [2019-11-07 00:45:52,827 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:45:52,827 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2945132] [2019-11-07 00:45:52,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:45:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:45:53,119 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 00:45:53,119 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2945132] [2019-11-07 00:45:53,120 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:45:53,120 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:45:53,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307383518] [2019-11-07 00:45:53,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:45:53,123 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:45:53,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:45:53,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:45:53,124 INFO L87 Difference]: Start difference. First operand 482 states and 638 transitions. Second operand 3 states. [2019-11-07 00:45:53,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:45:53,209 INFO L93 Difference]: Finished difference Result 724 states and 942 transitions. [2019-11-07 00:45:53,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:45:53,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-11-07 00:45:53,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:45:53,217 INFO L225 Difference]: With dead ends: 724 [2019-11-07 00:45:53,217 INFO L226 Difference]: Without dead ends: 485 [2019-11-07 00:45:53,226 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 00:45:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-11-07 00:45:53,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2019-11-07 00:45:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-11-07 00:45:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 640 transitions. [2019-11-07 00:45:53,286 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 640 transitions. Word has length 201 [2019-11-07 00:45:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:45:53,287 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 640 transitions. [2019-11-07 00:45:53,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:45:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 640 transitions. [2019-11-07 00:45:53,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-11-07 00:45:53,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:45:53,296 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, 1, 1, 1] [2019-11-07 00:45:53,297 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:45:53,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:45:53,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2082311285, now seen corresponding path program 1 times [2019-11-07 00:45:53,298 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:45:53,298 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360396767] [2019-11-07 00:45:53,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:45:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:45:53,586 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 00:45:53,587 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360396767] [2019-11-07 00:45:53,587 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:45:53,587 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:45:53,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899249592] [2019-11-07 00:45:53,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:45:53,591 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:45:53,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:45:53,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:45:53,592 INFO L87 Difference]: Start difference. First operand 484 states and 640 transitions. Second operand 3 states. [2019-11-07 00:45:53,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:45:53,645 INFO L93 Difference]: Finished difference Result 946 states and 1281 transitions. [2019-11-07 00:45:53,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:45:53,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-11-07 00:45:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:45:53,654 INFO L225 Difference]: With dead ends: 946 [2019-11-07 00:45:53,654 INFO L226 Difference]: Without dead ends: 527 [2019-11-07 00:45:53,658 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 00:45:53,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-11-07 00:45:53,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 526. [2019-11-07 00:45:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-11-07 00:45:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 712 transitions. [2019-11-07 00:45:53,689 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 712 transitions. Word has length 213 [2019-11-07 00:45:53,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:45:53,690 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 712 transitions. [2019-11-07 00:45:53,690 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:45:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 712 transitions. [2019-11-07 00:45:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-11-07 00:45:53,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:45:53,705 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, 1, 1, 1, 1] [2019-11-07 00:45:53,705 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:45:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:45:53,706 INFO L82 PathProgramCache]: Analyzing trace with hash -849255291, now seen corresponding path program 1 times [2019-11-07 00:45:53,706 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:45:53,707 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849484262] [2019-11-07 00:45:53,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:45:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:45:53,943 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 00:45:53,943 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849484262] [2019-11-07 00:45:53,944 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:45:53,944 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:45:53,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881913656] [2019-11-07 00:45:53,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:45:53,945 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:45:53,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:45:53,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:45:53,946 INFO L87 Difference]: Start difference. First operand 526 states and 712 transitions. Second operand 3 states. [2019-11-07 00:45:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:45:53,998 INFO L93 Difference]: Finished difference Result 1069 states and 1492 transitions. [2019-11-07 00:45:53,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:45:53,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2019-11-07 00:45:54,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:45:54,005 INFO L225 Difference]: With dead ends: 1069 [2019-11-07 00:45:54,005 INFO L226 Difference]: Without dead ends: 608 [2019-11-07 00:45:54,007 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 00:45:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-11-07 00:45:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 607. [2019-11-07 00:45:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-11-07 00:45:54,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 850 transitions. [2019-11-07 00:45:54,046 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 850 transitions. Word has length 214 [2019-11-07 00:45:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:45:54,047 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 850 transitions. [2019-11-07 00:45:54,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:45:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 850 transitions. [2019-11-07 00:45:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-11-07 00:45:54,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:45:54,054 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:45:54,054 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:45:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:45:54,055 INFO L82 PathProgramCache]: Analyzing trace with hash 716766844, now seen corresponding path program 1 times [2019-11-07 00:45:54,055 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:45:54,056 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110830379] [2019-11-07 00:45:54,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:45:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:45:54,534 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 00:45:54,534 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110830379] [2019-11-07 00:45:54,535 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:45:54,535 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:45:54,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369104300] [2019-11-07 00:45:54,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:45:54,537 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:45:54,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:45:54,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:45:54,538 INFO L87 Difference]: Start difference. First operand 607 states and 850 transitions. Second operand 19 states. [2019-11-07 00:45:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:45:59,279 INFO L93 Difference]: Finished difference Result 1925 states and 2678 transitions. [2019-11-07 00:45:59,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:45:59,279 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 217 [2019-11-07 00:45:59,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:45:59,291 INFO L225 Difference]: With dead ends: 1925 [2019-11-07 00:45:59,291 INFO L226 Difference]: Without dead ends: 1699 [2019-11-07 00:45:59,294 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:45:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2019-11-07 00:45:59,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1662. [2019-11-07 00:45:59,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2019-11-07 00:45:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2334 transitions. [2019-11-07 00:45:59,389 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2334 transitions. Word has length 217 [2019-11-07 00:45:59,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:45:59,390 INFO L462 AbstractCegarLoop]: Abstraction has 1662 states and 2334 transitions. [2019-11-07 00:45:59,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:45:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2334 transitions. [2019-11-07 00:45:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:45:59,399 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:45:59,400 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:45:59,400 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:45:59,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:45:59,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1614735209, now seen corresponding path program 1 times [2019-11-07 00:45:59,401 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:45:59,401 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524076557] [2019-11-07 00:45:59,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:45:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:45:59,752 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 00:45:59,752 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524076557] [2019-11-07 00:45:59,752 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:45:59,752 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:45:59,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414824764] [2019-11-07 00:45:59,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:45:59,754 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:45:59,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:45:59,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:45:59,754 INFO L87 Difference]: Start difference. First operand 1662 states and 2334 transitions. Second operand 15 states. [2019-11-07 00:46:02,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:02,891 INFO L93 Difference]: Finished difference Result 2719 states and 3748 transitions. [2019-11-07 00:46:02,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:46:02,892 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 218 [2019-11-07 00:46:02,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:02,903 INFO L225 Difference]: With dead ends: 2719 [2019-11-07 00:46:02,903 INFO L226 Difference]: Without dead ends: 1764 [2019-11-07 00:46:02,908 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:46:02,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2019-11-07 00:46:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1732. [2019-11-07 00:46:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1732 states. [2019-11-07 00:46:03,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2445 transitions. [2019-11-07 00:46:03,007 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2445 transitions. Word has length 218 [2019-11-07 00:46:03,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:03,012 INFO L462 AbstractCegarLoop]: Abstraction has 1732 states and 2445 transitions. [2019-11-07 00:46:03,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:46:03,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2445 transitions. [2019-11-07 00:46:03,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-07 00:46:03,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:03,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:03,022 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:03,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:03,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1908817952, now seen corresponding path program 1 times [2019-11-07 00:46:03,023 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:03,023 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387751597] [2019-11-07 00:46:03,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:03,461 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 00:46:03,461 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387751597] [2019-11-07 00:46:03,461 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:03,462 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:46:03,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008044870] [2019-11-07 00:46:03,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:46:03,463 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:03,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:46:03,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:46:03,463 INFO L87 Difference]: Start difference. First operand 1732 states and 2445 transitions. Second operand 15 states. [2019-11-07 00:46:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:06,316 INFO L93 Difference]: Finished difference Result 2789 states and 3855 transitions. [2019-11-07 00:46:06,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:46:06,318 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 219 [2019-11-07 00:46:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:06,329 INFO L225 Difference]: With dead ends: 2789 [2019-11-07 00:46:06,329 INFO L226 Difference]: Without dead ends: 1764 [2019-11-07 00:46:06,335 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:46:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2019-11-07 00:46:06,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1732. [2019-11-07 00:46:06,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1732 states. [2019-11-07 00:46:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2445 transitions. [2019-11-07 00:46:06,439 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2445 transitions. Word has length 219 [2019-11-07 00:46:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:06,441 INFO L462 AbstractCegarLoop]: Abstraction has 1732 states and 2445 transitions. [2019-11-07 00:46:06,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:46:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2445 transitions. [2019-11-07 00:46:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-07 00:46:06,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:06,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:06,451 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:06,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:06,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1755690719, now seen corresponding path program 1 times [2019-11-07 00:46:06,452 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:06,452 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019337932] [2019-11-07 00:46:06,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:07,004 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 00:46:07,005 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019337932] [2019-11-07 00:46:07,005 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:07,005 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-11-07 00:46:07,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077821376] [2019-11-07 00:46:07,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-07 00:46:07,007 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:07,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-07 00:46:07,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:46:07,008 INFO L87 Difference]: Start difference. First operand 1732 states and 2445 transitions. Second operand 23 states. [2019-11-07 00:46:12,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:12,168 INFO L93 Difference]: Finished difference Result 2854 states and 3959 transitions. [2019-11-07 00:46:12,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-11-07 00:46:12,169 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 219 [2019-11-07 00:46:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:12,180 INFO L225 Difference]: With dead ends: 2854 [2019-11-07 00:46:12,180 INFO L226 Difference]: Without dead ends: 1829 [2019-11-07 00:46:12,186 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1286 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=389, Invalid=4723, Unknown=0, NotChecked=0, Total=5112 [2019-11-07 00:46:12,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2019-11-07 00:46:12,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1794. [2019-11-07 00:46:12,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1794 states. [2019-11-07 00:46:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2537 transitions. [2019-11-07 00:46:12,259 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2537 transitions. Word has length 219 [2019-11-07 00:46:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:12,260 INFO L462 AbstractCegarLoop]: Abstraction has 1794 states and 2537 transitions. [2019-11-07 00:46:12,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-07 00:46:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2537 transitions. [2019-11-07 00:46:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:46:12,268 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:12,269 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:12,269 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:12,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:12,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1276793998, now seen corresponding path program 1 times [2019-11-07 00:46:12,269 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:12,270 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757914068] [2019-11-07 00:46:12,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:12,536 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 00:46:12,537 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757914068] [2019-11-07 00:46:12,538 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:12,538 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-11-07 00:46:12,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232844533] [2019-11-07 00:46:12,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-07 00:46:12,541 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:12,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-07 00:46:12,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:46:12,542 INFO L87 Difference]: Start difference. First operand 1794 states and 2537 transitions. Second operand 14 states. [2019-11-07 00:46:12,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:12,841 INFO L93 Difference]: Finished difference Result 2983 states and 4150 transitions. [2019-11-07 00:46:12,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:46:12,841 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 218 [2019-11-07 00:46:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:12,853 INFO L225 Difference]: With dead ends: 2983 [2019-11-07 00:46:12,853 INFO L226 Difference]: Without dead ends: 1850 [2019-11-07 00:46:12,861 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:46:12,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2019-11-07 00:46:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1819. [2019-11-07 00:46:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1819 states. [2019-11-07 00:46:12,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2563 transitions. [2019-11-07 00:46:12,948 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2563 transitions. Word has length 218 [2019-11-07 00:46:12,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:12,950 INFO L462 AbstractCegarLoop]: Abstraction has 1819 states and 2563 transitions. [2019-11-07 00:46:12,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-07 00:46:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2563 transitions. [2019-11-07 00:46:12,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:46:12,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:12,957 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:12,958 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:12,958 INFO L82 PathProgramCache]: Analyzing trace with hash -214845570, now seen corresponding path program 1 times [2019-11-07 00:46:12,958 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:12,958 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664936071] [2019-11-07 00:46:12,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:13,197 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 00:46:13,197 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664936071] [2019-11-07 00:46:13,198 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:13,198 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:46:13,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886603492] [2019-11-07 00:46:13,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:46:13,200 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:13,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:46:13,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:46:13,201 INFO L87 Difference]: Start difference. First operand 1819 states and 2563 transitions. Second operand 5 states. [2019-11-07 00:46:14,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:14,070 INFO L93 Difference]: Finished difference Result 4240 states and 5876 transitions. [2019-11-07 00:46:14,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:46:14,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2019-11-07 00:46:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:14,093 INFO L225 Difference]: With dead ends: 4240 [2019-11-07 00:46:14,094 INFO L226 Difference]: Without dead ends: 3712 [2019-11-07 00:46:14,098 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 00:46:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2019-11-07 00:46:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3693. [2019-11-07 00:46:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3693 states. [2019-11-07 00:46:14,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3693 states to 3693 states and 5159 transitions. [2019-11-07 00:46:14,300 INFO L78 Accepts]: Start accepts. Automaton has 3693 states and 5159 transitions. Word has length 218 [2019-11-07 00:46:14,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:14,301 INFO L462 AbstractCegarLoop]: Abstraction has 3693 states and 5159 transitions. [2019-11-07 00:46:14,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:46:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3693 states and 5159 transitions. [2019-11-07 00:46:14,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:46:14,311 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:14,311 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:14,312 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:14,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1639499967, now seen corresponding path program 1 times [2019-11-07 00:46:14,312 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:14,313 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425395023] [2019-11-07 00:46:14,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:14,568 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 00:46:14,569 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425395023] [2019-11-07 00:46:14,569 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:14,569 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:46:14,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052054686] [2019-11-07 00:46:14,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:46:14,571 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:14,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:46:14,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:46:14,572 INFO L87 Difference]: Start difference. First operand 3693 states and 5159 transitions. Second operand 13 states. [2019-11-07 00:46:17,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:17,014 INFO L93 Difference]: Finished difference Result 9380 states and 12951 transitions. [2019-11-07 00:46:17,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 00:46:17,014 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 218 [2019-11-07 00:46:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:17,055 INFO L225 Difference]: With dead ends: 9380 [2019-11-07 00:46:17,055 INFO L226 Difference]: Without dead ends: 7337 [2019-11-07 00:46:17,065 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2019-11-07 00:46:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7337 states. [2019-11-07 00:46:17,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7337 to 7312. [2019-11-07 00:46:17,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7312 states. [2019-11-07 00:46:17,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 10203 transitions. [2019-11-07 00:46:17,408 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 10203 transitions. Word has length 218 [2019-11-07 00:46:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:17,409 INFO L462 AbstractCegarLoop]: Abstraction has 7312 states and 10203 transitions. [2019-11-07 00:46:17,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:46:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 10203 transitions. [2019-11-07 00:46:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-11-07 00:46:17,429 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:17,429 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, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:17,429 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:17,430 INFO L82 PathProgramCache]: Analyzing trace with hash -486187450, now seen corresponding path program 1 times [2019-11-07 00:46:17,430 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:17,430 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512898437] [2019-11-07 00:46:17,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:17,654 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 00:46:17,654 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512898437] [2019-11-07 00:46:17,654 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:17,654 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:17,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683827577] [2019-11-07 00:46:17,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:17,655 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:17,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:17,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:17,656 INFO L87 Difference]: Start difference. First operand 7312 states and 10203 transitions. Second operand 3 states. [2019-11-07 00:46:17,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:17,871 INFO L93 Difference]: Finished difference Result 15501 states and 22061 transitions. [2019-11-07 00:46:17,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:17,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2019-11-07 00:46:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:17,940 INFO L225 Difference]: With dead ends: 15501 [2019-11-07 00:46:17,941 INFO L226 Difference]: Without dead ends: 8254 [2019-11-07 00:46:17,975 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 00:46:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2019-11-07 00:46:18,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 8248. [2019-11-07 00:46:18,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8248 states. [2019-11-07 00:46:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11901 transitions. [2019-11-07 00:46:18,386 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11901 transitions. Word has length 216 [2019-11-07 00:46:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:18,386 INFO L462 AbstractCegarLoop]: Abstraction has 8248 states and 11901 transitions. [2019-11-07 00:46:18,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11901 transitions. [2019-11-07 00:46:18,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-07 00:46:18,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:18,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:18,413 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:18,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1217345233, now seen corresponding path program 1 times [2019-11-07 00:46:18,414 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:18,414 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609978318] [2019-11-07 00:46:18,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:18,613 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 00:46:18,613 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609978318] [2019-11-07 00:46:18,613 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:18,614 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:46:18,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971478658] [2019-11-07 00:46:18,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:46:18,615 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:18,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:46:18,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:46:18,616 INFO L87 Difference]: Start difference. First operand 8248 states and 11901 transitions. Second operand 11 states. [2019-11-07 00:46:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:19,030 INFO L93 Difference]: Finished difference Result 12751 states and 17851 transitions. [2019-11-07 00:46:19,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:46:19,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 219 [2019-11-07 00:46:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:19,075 INFO L225 Difference]: With dead ends: 12751 [2019-11-07 00:46:19,075 INFO L226 Difference]: Without dead ends: 8718 [2019-11-07 00:46:19,090 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:46:19,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2019-11-07 00:46:19,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 8688. [2019-11-07 00:46:19,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8688 states. [2019-11-07 00:46:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8688 states to 8688 states and 12596 transitions. [2019-11-07 00:46:19,485 INFO L78 Accepts]: Start accepts. Automaton has 8688 states and 12596 transitions. Word has length 219 [2019-11-07 00:46:19,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:19,486 INFO L462 AbstractCegarLoop]: Abstraction has 8688 states and 12596 transitions. [2019-11-07 00:46:19,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:46:19,486 INFO L276 IsEmpty]: Start isEmpty. Operand 8688 states and 12596 transitions. [2019-11-07 00:46:19,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-11-07 00:46:19,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:19,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:46:19,510 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:19,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:19,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1862061334, now seen corresponding path program 1 times [2019-11-07 00:46:19,510 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:19,511 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282271838] [2019-11-07 00:46:19,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:19,682 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 00:46:19,683 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282271838] [2019-11-07 00:46:19,683 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:19,683 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 00:46:19,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086989022] [2019-11-07 00:46:19,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:46:19,684 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:19,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:46:19,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:46:19,685 INFO L87 Difference]: Start difference. First operand 8688 states and 12596 transitions. Second operand 9 states. [2019-11-07 00:46:19,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:19,959 INFO L93 Difference]: Finished difference Result 14213 states and 19979 transitions. [2019-11-07 00:46:19,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:46:19,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 220 [2019-11-07 00:46:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:19,999 INFO L225 Difference]: With dead ends: 14213 [2019-11-07 00:46:19,999 INFO L226 Difference]: Without dead ends: 8758 [2019-11-07 00:46:20,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:46:20,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states.