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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:11:58,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:11:58,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:11:58,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:11:58,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:11:58,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:11:58,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:11:58,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:11:58,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:11:58,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:11:58,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:11:58,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:11:58,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:11:58,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:11:58,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:11:58,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:11:58,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:11:58,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:11:58,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:11:58,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:11:58,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:11:58,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:11:58,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:11:58,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:11:58,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:11:58,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:11:58,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:11:58,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:11:58,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:11:58,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:11:58,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:11:58,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:11:58,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:11:58,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:11:58,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:11:58,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:11:58,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:11:58,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:11:58,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:11:58,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:11:58,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:11:58,647 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:11:58,675 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:11:58,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:11:58,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:11:58,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:11:58,677 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:11:58,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:11:58,678 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:11:58,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:11:58,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:11:58,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:11:58,678 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:11:58,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:11:58,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:11:58,679 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:11:58,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:11:58,684 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:11:58,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:11:58,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:11:58,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:11:58,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:11:58,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:11:58,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:58,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:11:58,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:11:58,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:11:58,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:11:58,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:11:58,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:11:58,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:11:59,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:11:59,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:11:59,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:11:59,020 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:11:59,021 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:11:59,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product31.cil.c [2019-10-15 01:11:59,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b5691f8/09062abdda0f4520bb6d63d6b931cd55/FLAGef92d94e4 [2019-10-15 01:11:59,718 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:11:59,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product31.cil.c [2019-10-15 01:11:59,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b5691f8/09062abdda0f4520bb6d63d6b931cd55/FLAGef92d94e4 [2019-10-15 01:11:59,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b5691f8/09062abdda0f4520bb6d63d6b931cd55 [2019-10-15 01:11:59,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:00,001 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:00,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:00,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:00,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:00,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:59" (1/1) ... [2019-10-15 01:12:00,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:00, skipping insertion in model container [2019-10-15 01:12:00,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:59" (1/1) ... [2019-10-15 01:12:00,018 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:00,107 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:00,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:00,867 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:01,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:01,169 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:01,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01 WrapperNode [2019-10-15 01:12:01,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:01,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:01,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:01,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:01,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... [2019-10-15 01:12:01,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:01,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:01,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:01,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:01,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:01,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:01,451 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:01,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:01,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:01,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:01,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:01,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:01,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:01,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:01,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:12:01,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:12:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:12:01,463 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:12:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:12:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:01,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:12:01,465 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:12:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:01,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:01,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:01,470 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:01,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:12:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:01,476 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:01,477 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:01,479 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:01,480 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:01,481 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:01,482 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:01,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:01,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:01,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:01,494 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:01,495 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:01,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:01,497 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:01,498 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:12:01,499 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:12:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:01,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 01:12:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:12:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:01,503 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:01,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:03,617 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:03,617 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:03,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:03 BoogieIcfgContainer [2019-10-15 01:12:03,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:03,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:03,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:03,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:03,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:11:59" (1/3) ... [2019-10-15 01:12:03,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fec782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:03, skipping insertion in model container [2019-10-15 01:12:03,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:01" (2/3) ... [2019-10-15 01:12:03,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fec782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:03, skipping insertion in model container [2019-10-15 01:12:03,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:03" (3/3) ... [2019-10-15 01:12:03,630 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product31.cil.c [2019-10-15 01:12:03,641 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:03,654 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:03,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:03,722 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:03,722 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:03,723 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:03,727 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:03,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:03,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:03,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:03,729 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states. [2019-10-15 01:12:03,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-15 01:12:03,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:03,819 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:03,827 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:03,835 INFO L82 PathProgramCache]: Analyzing trace with hash -502601310, now seen corresponding path program 1 times [2019-10-15 01:12:03,846 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:03,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351602946] [2019-10-15 01:12:03,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:03,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:03,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:04,640 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 01:12:04,641 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351602946] [2019-10-15 01:12:04,642 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:04,642 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:04,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307835117] [2019-10-15 01:12:04,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:04,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:04,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:04,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:04,670 INFO L87 Difference]: Start difference. First operand 555 states. Second operand 2 states. [2019-10-15 01:12:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:04,808 INFO L93 Difference]: Finished difference Result 852 states and 1120 transitions. [2019-10-15 01:12:04,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:04,810 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 221 [2019-10-15 01:12:04,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:04,852 INFO L225 Difference]: With dead ends: 852 [2019-10-15 01:12:04,852 INFO L226 Difference]: Without dead ends: 532 [2019-10-15 01:12:04,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:04,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2019-10-15 01:12:04,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2019-10-15 01:12:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2019-10-15 01:12:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 702 transitions. [2019-10-15 01:12:05,005 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 702 transitions. Word has length 221 [2019-10-15 01:12:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:05,007 INFO L462 AbstractCegarLoop]: Abstraction has 532 states and 702 transitions. [2019-10-15 01:12:05,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 702 transitions. [2019-10-15 01:12:05,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 01:12:05,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:05,014 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:05,015 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1959572601, now seen corresponding path program 1 times [2019-10-15 01:12:05,015 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:05,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481796299] [2019-10-15 01:12:05,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:05,016 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:05,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 01:12:05,369 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481796299] [2019-10-15 01:12:05,369 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:05,370 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:05,370 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414989217] [2019-10-15 01:12:05,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:05,377 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:05,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:05,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:05,378 INFO L87 Difference]: Start difference. First operand 532 states and 702 transitions. Second operand 3 states. [2019-10-15 01:12:05,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:05,451 INFO L93 Difference]: Finished difference Result 835 states and 1084 transitions. [2019-10-15 01:12:05,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:05,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-15 01:12:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:05,456 INFO L225 Difference]: With dead ends: 835 [2019-10-15 01:12:05,456 INFO L226 Difference]: Without dead ends: 535 [2019-10-15 01:12:05,458 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:05,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2019-10-15 01:12:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 534. [2019-10-15 01:12:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2019-10-15 01:12:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 704 transitions. [2019-10-15 01:12:05,483 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 704 transitions. Word has length 222 [2019-10-15 01:12:05,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:05,483 INFO L462 AbstractCegarLoop]: Abstraction has 534 states and 704 transitions. [2019-10-15 01:12:05,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:05,484 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 704 transitions. [2019-10-15 01:12:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-15 01:12:05,490 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:05,490 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:05,491 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash 804976229, now seen corresponding path program 1 times [2019-10-15 01:12:05,491 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:05,492 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559322768] [2019-10-15 01:12:05,492 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:05,492 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:05,492 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 01:12:05,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559322768] [2019-10-15 01:12:05,672 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:05,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:05,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93852601] [2019-10-15 01:12:05,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:05,674 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:05,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:05,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:05,675 INFO L87 Difference]: Start difference. First operand 534 states and 704 transitions. Second operand 3 states. [2019-10-15 01:12:05,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:05,716 INFO L93 Difference]: Finished difference Result 1044 states and 1406 transitions. [2019-10-15 01:12:05,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:05,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2019-10-15 01:12:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:05,722 INFO L225 Difference]: With dead ends: 1044 [2019-10-15 01:12:05,722 INFO L226 Difference]: Without dead ends: 575 [2019-10-15 01:12:05,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:05,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-15 01:12:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 574. [2019-10-15 01:12:05,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-15 01:12:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 773 transitions. [2019-10-15 01:12:05,748 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 773 transitions. Word has length 228 [2019-10-15 01:12:05,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:05,749 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 773 transitions. [2019-10-15 01:12:05,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 773 transitions. [2019-10-15 01:12:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-15 01:12:05,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:05,755 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:05,755 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:05,755 INFO L82 PathProgramCache]: Analyzing trace with hash 621329804, now seen corresponding path program 1 times [2019-10-15 01:12:05,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:05,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819020965] [2019-10-15 01:12:05,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:05,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:05,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:06,421 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:12:06,422 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819020965] [2019-10-15 01:12:06,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:06,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:06,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072663033] [2019-10-15 01:12:06,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:06,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:06,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:06,425 INFO L87 Difference]: Start difference. First operand 574 states and 773 transitions. Second operand 19 states. [2019-10-15 01:12:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:11,598 INFO L93 Difference]: Finished difference Result 2042 states and 2759 transitions. [2019-10-15 01:12:11,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:11,599 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 229 [2019-10-15 01:12:11,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:11,613 INFO L225 Difference]: With dead ends: 2042 [2019-10-15 01:12:11,613 INFO L226 Difference]: Without dead ends: 1755 [2019-10-15 01:12:11,616 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:11,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2019-10-15 01:12:11,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1718. [2019-10-15 01:12:11,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1718 states. [2019-10-15 01:12:11,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1718 states to 1718 states and 2329 transitions. [2019-10-15 01:12:11,727 INFO L78 Accepts]: Start accepts. Automaton has 1718 states and 2329 transitions. Word has length 229 [2019-10-15 01:12:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:11,728 INFO L462 AbstractCegarLoop]: Abstraction has 1718 states and 2329 transitions. [2019-10-15 01:12:11,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1718 states and 2329 transitions. [2019-10-15 01:12:11,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:12:11,737 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:11,737 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:11,738 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:11,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1402859165, now seen corresponding path program 1 times [2019-10-15 01:12:11,738 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:11,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821271661] [2019-10-15 01:12:11,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:11,739 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:11,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:12:12,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821271661] [2019-10-15 01:12:12,102 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:12,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:12,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353873821] [2019-10-15 01:12:12,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:12,104 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:12,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:12,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:12,105 INFO L87 Difference]: Start difference. First operand 1718 states and 2329 transitions. Second operand 16 states. [2019-10-15 01:12:12,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:12,528 INFO L93 Difference]: Finished difference Result 3039 states and 4081 transitions. [2019-10-15 01:12:12,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:12:12,528 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 230 [2019-10-15 01:12:12,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:12,542 INFO L225 Difference]: With dead ends: 3039 [2019-10-15 01:12:12,542 INFO L226 Difference]: Without dead ends: 1800 [2019-10-15 01:12:12,547 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:12:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2019-10-15 01:12:12,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2019-10-15 01:12:12,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1800 states. [2019-10-15 01:12:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2442 transitions. [2019-10-15 01:12:12,679 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2442 transitions. Word has length 230 [2019-10-15 01:12:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:12,681 INFO L462 AbstractCegarLoop]: Abstraction has 1800 states and 2442 transitions. [2019-10-15 01:12:12,681 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:12:12,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2442 transitions. [2019-10-15 01:12:12,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:12:12,689 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:12,689 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:12,690 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:12,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:12,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1144463917, now seen corresponding path program 1 times [2019-10-15 01:12:12,691 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:12,691 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849757147] [2019-10-15 01:12:12,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:12,691 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:12,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:12:13,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849757147] [2019-10-15 01:12:13,137 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:13,137 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:13,137 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308100582] [2019-10-15 01:12:13,139 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:13,139 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:13,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:13,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:13,140 INFO L87 Difference]: Start difference. First operand 1800 states and 2442 transitions. Second operand 15 states. [2019-10-15 01:12:17,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:17,070 INFO L93 Difference]: Finished difference Result 3089 states and 4140 transitions. [2019-10-15 01:12:17,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:17,071 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 230 [2019-10-15 01:12:17,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:17,084 INFO L225 Difference]: With dead ends: 3089 [2019-10-15 01:12:17,084 INFO L226 Difference]: Without dead ends: 1882 [2019-10-15 01:12:17,092 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:17,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2019-10-15 01:12:17,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1829. [2019-10-15 01:12:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2019-10-15 01:12:17,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2490 transitions. [2019-10-15 01:12:17,214 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2490 transitions. Word has length 230 [2019-10-15 01:12:17,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:17,216 INFO L462 AbstractCegarLoop]: Abstraction has 1829 states and 2490 transitions. [2019-10-15 01:12:17,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2490 transitions. [2019-10-15 01:12:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:12:17,232 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:17,233 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:17,233 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:17,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:17,234 INFO L82 PathProgramCache]: Analyzing trace with hash -746069554, now seen corresponding path program 1 times [2019-10-15 01:12:17,234 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:17,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39664125] [2019-10-15 01:12:17,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:17,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:17,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:17,546 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 01:12:17,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39664125] [2019-10-15 01:12:17,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:17,548 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:17,548 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857500700] [2019-10-15 01:12:17,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:17,549 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:17,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:17,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:17,550 INFO L87 Difference]: Start difference. First operand 1829 states and 2490 transitions. Second operand 5 states. [2019-10-15 01:12:18,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:18,833 INFO L93 Difference]: Finished difference Result 4646 states and 6312 transitions. [2019-10-15 01:12:18,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:18,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2019-10-15 01:12:18,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:18,873 INFO L225 Difference]: With dead ends: 4646 [2019-10-15 01:12:18,873 INFO L226 Difference]: Without dead ends: 4009 [2019-10-15 01:12:18,879 INFO L600 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 [2019-10-15 01:12:18,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2019-10-15 01:12:19,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 3978. [2019-10-15 01:12:19,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3978 states. [2019-10-15 01:12:19,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5410 transitions. [2019-10-15 01:12:19,140 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5410 transitions. Word has length 230 [2019-10-15 01:12:19,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:19,141 INFO L462 AbstractCegarLoop]: Abstraction has 3978 states and 5410 transitions. [2019-10-15 01:12:19,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:19,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5410 transitions. [2019-10-15 01:12:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:12:19,152 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:19,153 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:19,153 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:19,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:19,154 INFO L82 PathProgramCache]: Analyzing trace with hash -70376945, now seen corresponding path program 1 times [2019-10-15 01:12:19,154 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:19,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000922579] [2019-10-15 01:12:19,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:19,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:19,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:19,439 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:19,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000922579] [2019-10-15 01:12:19,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988883554] [2019-10-15 01:12:19,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:20,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 2935 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:12:20,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:12:20,329 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:12:20,329 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:12:20,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:12:20,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:20,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:20,995 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:12:20,996 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:12:20,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766275568] [2019-10-15 01:12:20,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:20,997 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:20,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:20,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:12:20,998 INFO L87 Difference]: Start difference. First operand 3978 states and 5410 transitions. Second operand 9 states. [2019-10-15 01:12:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:23,197 INFO L93 Difference]: Finished difference Result 7934 states and 10800 transitions. [2019-10-15 01:12:23,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:23,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2019-10-15 01:12:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:23,226 INFO L225 Difference]: With dead ends: 7934 [2019-10-15 01:12:23,227 INFO L226 Difference]: Without dead ends: 3992 [2019-10-15 01:12:23,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 453 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:12:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2019-10-15 01:12:23,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 3992. [2019-10-15 01:12:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3992 states. [2019-10-15 01:12:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 5428 transitions. [2019-10-15 01:12:23,494 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 5428 transitions. Word has length 230 [2019-10-15 01:12:23,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:23,494 INFO L462 AbstractCegarLoop]: Abstraction has 3992 states and 5428 transitions. [2019-10-15 01:12:23,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 5428 transitions. [2019-10-15 01:12:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:12:23,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:23,512 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:23,716 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:23,717 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:23,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:23,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1052271645, now seen corresponding path program 1 times [2019-10-15 01:12:23,719 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:23,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91774299] [2019-10-15 01:12:23,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:23,720 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:23,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:24,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91774299] [2019-10-15 01:12:24,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24300155] [2019-10-15 01:12:24,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:24,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:12:24,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:12:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:12:24,752 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:12:25,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:25,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:25,196 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:12:25,196 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:12:25,197 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540577396] [2019-10-15 01:12:25,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:12:25,197 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:25,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:12:25,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:25,198 INFO L87 Difference]: Start difference. First operand 3992 states and 5428 transitions. Second operand 7 states. [2019-10-15 01:12:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:26,686 INFO L93 Difference]: Finished difference Result 7939 states and 10814 transitions. [2019-10-15 01:12:26,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:26,686 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 231 [2019-10-15 01:12:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:26,713 INFO L225 Difference]: With dead ends: 7939 [2019-10-15 01:12:26,713 INFO L226 Difference]: Without dead ends: 3998 [2019-10-15 01:12:26,728 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 460 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:12:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2019-10-15 01:12:26,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3998. [2019-10-15 01:12:26,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3998 states. [2019-10-15 01:12:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3998 states to 3998 states and 5435 transitions. [2019-10-15 01:12:26,929 INFO L78 Accepts]: Start accepts. Automaton has 3998 states and 5435 transitions. Word has length 231 [2019-10-15 01:12:26,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:26,930 INFO L462 AbstractCegarLoop]: Abstraction has 3998 states and 5435 transitions. [2019-10-15 01:12:26,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:12:26,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3998 states and 5435 transitions. [2019-10-15 01:12:26,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-15 01:12:26,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:26,942 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:27,148 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:27,149 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:27,150 INFO L82 PathProgramCache]: Analyzing trace with hash 644917544, now seen corresponding path program 1 times [2019-10-15 01:12:27,150 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:27,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947689589] [2019-10-15 01:12:27,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:27,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:27,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:27,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947689589] [2019-10-15 01:12:27,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955673864] [2019-10-15 01:12:27,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:12:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:28,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:12:28,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:12:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:28,350 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:12:28,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:12:28,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:28,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:12:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:28,956 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:12:28,956 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [7] total 21 [2019-10-15 01:12:28,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779962161] [2019-10-15 01:12:28,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:28,957 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:28,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:28,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:12:28,958 INFO L87 Difference]: Start difference. First operand 3998 states and 5435 transitions. Second operand 16 states.