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_spec6_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:19,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:19,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:19,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:19,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:19,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:19,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:19,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:19,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:19,605 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:19,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:19,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:19,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:19,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:19,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:19,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:19,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:19,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:19,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:19,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:19,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:19,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:19,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:19,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:19,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:19,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:19,626 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:19,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:19,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:19,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:19,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:19,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:19,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:19,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:19,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:19,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:19,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:19,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:19,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:19,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:19,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:19,639 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 01:16:19,664 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:19,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:19,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:19,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:19,666 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:19,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:19,667 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:19,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:19,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:19,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:19,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:19,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:19,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:19,668 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:19,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:19,668 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:19,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:19,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:19,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:19,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:19,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:19,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:19,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:19,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:19,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:19,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:19,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:19,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:19,671 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 01:16:19,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:19,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:19,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:19,980 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:19,981 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:19,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-15 01:16:20,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0335de57/0aa156878c9044988d5688b34654e816/FLAG9e00bcc53 [2019-10-15 01:16:20,730 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:20,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-15 01:16:20,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0335de57/0aa156878c9044988d5688b34654e816/FLAG9e00bcc53 [2019-10-15 01:16:20,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0335de57/0aa156878c9044988d5688b34654e816 [2019-10-15 01:16:20,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:20,887 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:20,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:20,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:20,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:20,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:20" (1/1) ... [2019-10-15 01:16:20,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5611840f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:20, skipping insertion in model container [2019-10-15 01:16:20,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:20" (1/1) ... [2019-10-15 01:16:20,903 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:20,978 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:21,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:21,746 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:21,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:21,977 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:21,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21 WrapperNode [2019-10-15 01:16:21,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:21,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:21,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:21,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:21,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:21,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:22,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:22,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:22,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:22,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:22,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (1/1) ... [2019-10-15 01:16:22,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:22,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:22,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:22,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:22,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (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 01:16:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:22,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:16:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:16:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:22,317 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:22,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:22,319 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:22,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:22,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:22,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:22,338 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:22,341 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:22,342 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:22,343 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:22,344 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:22,345 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:22,346 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:22,347 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:22,348 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:22,349 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:22,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:22,351 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:22,352 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:16:22,353 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:16:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:22,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:24,627 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:24,627 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:24,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:24 BoogieIcfgContainer [2019-10-15 01:16:24,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:24,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:24,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:24,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:24,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:20" (1/3) ... [2019-10-15 01:16:24,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502dd74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:24, skipping insertion in model container [2019-10-15 01:16:24,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:21" (2/3) ... [2019-10-15 01:16:24,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502dd74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:24, skipping insertion in model container [2019-10-15 01:16:24,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:24" (3/3) ... [2019-10-15 01:16:24,638 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2019-10-15 01:16:24,649 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:24,659 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:24,671 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:24,702 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:24,702 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:24,702 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:24,702 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:24,702 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:24,702 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:24,703 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:24,703 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:24,735 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-15 01:16:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:24,757 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:24,759 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:24,761 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:24,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1571971609, now seen corresponding path program 1 times [2019-10-15 01:16:24,778 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:24,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491710253] [2019-10-15 01:16:24,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,779 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:25,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491710253] [2019-10-15 01:16:25,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:25,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:25,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159470625] [2019-10-15 01:16:25,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:25,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:25,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:25,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:25,606 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-15 01:16:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:25,718 INFO L93 Difference]: Finished difference Result 927 states and 1217 transitions. [2019-10-15 01:16:25,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:25,719 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-15 01:16:25,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:25,746 INFO L225 Difference]: With dead ends: 927 [2019-10-15 01:16:25,747 INFO L226 Difference]: Without dead ends: 575 [2019-10-15 01:16:25,763 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 01:16:25,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-15 01:16:25,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2019-10-15 01:16:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2019-10-15 01:16:25,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 759 transitions. [2019-10-15 01:16:25,886 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 759 transitions. Word has length 189 [2019-10-15 01:16:25,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:25,890 INFO L462 AbstractCegarLoop]: Abstraction has 575 states and 759 transitions. [2019-10-15 01:16:25,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 759 transitions. [2019-10-15 01:16:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:16:25,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:25,910 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:25,911 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:25,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:25,911 INFO L82 PathProgramCache]: Analyzing trace with hash -84280545, now seen corresponding path program 1 times [2019-10-15 01:16:25,912 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:25,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170328346] [2019-10-15 01:16:25,913 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,913 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:26,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170328346] [2019-10-15 01:16:26,259 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,260 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:26,260 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813927119] [2019-10-15 01:16:26,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:26,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:26,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:26,263 INFO L87 Difference]: Start difference. First operand 575 states and 759 transitions. Second operand 3 states. [2019-10-15 01:16:26,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:26,307 INFO L93 Difference]: Finished difference Result 910 states and 1184 transitions. [2019-10-15 01:16:26,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:26,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:16:26,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:26,313 INFO L225 Difference]: With dead ends: 910 [2019-10-15 01:16:26,313 INFO L226 Difference]: Without dead ends: 578 [2019-10-15 01:16:26,315 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 01:16:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-15 01:16:26,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 577. [2019-10-15 01:16:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-15 01:16:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 761 transitions. [2019-10-15 01:16:26,347 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 761 transitions. Word has length 190 [2019-10-15 01:16:26,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,347 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 761 transitions. [2019-10-15 01:16:26,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 761 transitions. [2019-10-15 01:16:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:16:26,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,352 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:26,352 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,353 INFO L82 PathProgramCache]: Analyzing trace with hash 364513166, now seen corresponding path program 1 times [2019-10-15 01:16:26,353 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138813647] [2019-10-15 01:16:26,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,517 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:26,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138813647] [2019-10-15 01:16:26,517 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,518 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:26,518 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164554534] [2019-10-15 01:16:26,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:26,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:26,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:26,524 INFO L87 Difference]: Start difference. First operand 577 states and 761 transitions. Second operand 3 states. [2019-10-15 01:16:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:26,586 INFO L93 Difference]: Finished difference Result 1132 states and 1523 transitions. [2019-10-15 01:16:26,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:26,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-15 01:16:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:26,598 INFO L225 Difference]: With dead ends: 1132 [2019-10-15 01:16:26,598 INFO L226 Difference]: Without dead ends: 620 [2019-10-15 01:16:26,601 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 01:16:26,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-15 01:16:26,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2019-10-15 01:16:26,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-15 01:16:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 833 transitions. [2019-10-15 01:16:26,655 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 833 transitions. Word has length 202 [2019-10-15 01:16:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,656 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 833 transitions. [2019-10-15 01:16:26,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 833 transitions. [2019-10-15 01:16:26,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:26,667 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,667 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:26,668 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1378845606, now seen corresponding path program 1 times [2019-10-15 01:16:26,672 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758214736] [2019-10-15 01:16:26,672 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,995 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:26,995 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758214736] [2019-10-15 01:16:26,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,996 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:26,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998749529] [2019-10-15 01:16:26,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:26,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:26,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:26,998 INFO L87 Difference]: Start difference. First operand 619 states and 833 transitions. Second operand 3 states. [2019-10-15 01:16:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:27,035 INFO L93 Difference]: Finished difference Result 1255 states and 1734 transitions. [2019-10-15 01:16:27,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:27,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-15 01:16:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:27,041 INFO L225 Difference]: With dead ends: 1255 [2019-10-15 01:16:27,042 INFO L226 Difference]: Without dead ends: 701 [2019-10-15 01:16:27,044 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 01:16:27,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-15 01:16:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-15 01:16:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-15 01:16:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 971 transitions. [2019-10-15 01:16:27,078 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 971 transitions. Word has length 203 [2019-10-15 01:16:27,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:27,079 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 971 transitions. [2019-10-15 01:16:27,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 971 transitions. [2019-10-15 01:16:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:16:27,084 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:27,084 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:27,084 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:27,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:27,085 INFO L82 PathProgramCache]: Analyzing trace with hash 402895277, now seen corresponding path program 1 times [2019-10-15 01:16:27,085 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:27,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968818397] [2019-10-15 01:16:27,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,086 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:27,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968818397] [2019-10-15 01:16:27,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:27,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:27,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050882032] [2019-10-15 01:16:27,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:27,487 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:27,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:27,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:27,489 INFO L87 Difference]: Start difference. First operand 700 states and 971 transitions. Second operand 11 states. [2019-10-15 01:16:33,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:33,976 INFO L93 Difference]: Finished difference Result 3376 states and 4520 transitions. [2019-10-15 01:16:33,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:33,977 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-15 01:16:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:33,993 INFO L225 Difference]: With dead ends: 3376 [2019-10-15 01:16:33,993 INFO L226 Difference]: Without dead ends: 2603 [2019-10-15 01:16:33,997 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:34,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2019-10-15 01:16:34,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2588. [2019-10-15 01:16:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2588 states. [2019-10-15 01:16:34,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3416 transitions. [2019-10-15 01:16:34,163 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3416 transitions. Word has length 206 [2019-10-15 01:16:34,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:34,165 INFO L462 AbstractCegarLoop]: Abstraction has 2588 states and 3416 transitions. [2019-10-15 01:16:34,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:34,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3416 transitions. [2019-10-15 01:16:34,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:16:34,170 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:34,170 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:34,171 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:34,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:34,171 INFO L82 PathProgramCache]: Analyzing trace with hash 932962740, now seen corresponding path program 1 times [2019-10-15 01:16:34,171 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:34,172 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764658249] [2019-10-15 01:16:34,172 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:34,172 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:34,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:34,536 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764658249] [2019-10-15 01:16:34,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:34,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:16:34,537 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578101886] [2019-10-15 01:16:34,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:16:34,538 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:34,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:16:34,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:34,539 INFO L87 Difference]: Start difference. First operand 2588 states and 3416 transitions. Second operand 18 states. [2019-10-15 01:16:35,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:35,123 INFO L93 Difference]: Finished difference Result 4563 states and 5993 transitions. [2019-10-15 01:16:35,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:16:35,123 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 207 [2019-10-15 01:16:35,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:35,135 INFO L225 Difference]: With dead ends: 4563 [2019-10-15 01:16:35,136 INFO L226 Difference]: Without dead ends: 2087 [2019-10-15 01:16:35,143 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2019-10-15 01:16:35,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2047. [2019-10-15 01:16:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2047 states. [2019-10-15 01:16:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2703 transitions. [2019-10-15 01:16:35,228 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2703 transitions. Word has length 207 [2019-10-15 01:16:35,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:35,229 INFO L462 AbstractCegarLoop]: Abstraction has 2047 states and 2703 transitions. [2019-10-15 01:16:35,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:16:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2703 transitions. [2019-10-15 01:16:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:16:35,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:35,234 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:35,234 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:35,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:35,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1982112620, now seen corresponding path program 1 times [2019-10-15 01:16:35,235 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:35,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154113861] [2019-10-15 01:16:35,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,235 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:35,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154113861] [2019-10-15 01:16:35,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:35,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:35,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916824321] [2019-10-15 01:16:35,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:35,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:35,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:35,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:35,434 INFO L87 Difference]: Start difference. First operand 2047 states and 2703 transitions. Second operand 6 states. [2019-10-15 01:16:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:36,276 INFO L93 Difference]: Finished difference Result 5696 states and 7493 transitions. [2019-10-15 01:16:36,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:36,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-15 01:16:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:36,306 INFO L225 Difference]: With dead ends: 5696 [2019-10-15 01:16:36,307 INFO L226 Difference]: Without dead ends: 4085 [2019-10-15 01:16:36,316 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2019-10-15 01:16:36,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 4014. [2019-10-15 01:16:36,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4014 states. [2019-10-15 01:16:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 5337 transitions. [2019-10-15 01:16:36,584 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 5337 transitions. Word has length 216 [2019-10-15 01:16:36,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:36,587 INFO L462 AbstractCegarLoop]: Abstraction has 4014 states and 5337 transitions. [2019-10-15 01:16:36,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:36,588 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 5337 transitions. [2019-10-15 01:16:36,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:16:36,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:36,601 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:36,601 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:36,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:36,602 INFO L82 PathProgramCache]: Analyzing trace with hash -824209956, now seen corresponding path program 1 times [2019-10-15 01:16:36,602 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:36,603 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816466451] [2019-10-15 01:16:36,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:36,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:37,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816466451] [2019-10-15 01:16:37,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:37,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:37,034 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576597002] [2019-10-15 01:16:37,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:37,036 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:37,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:37,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:37,037 INFO L87 Difference]: Start difference. First operand 4014 states and 5337 transitions. Second operand 11 states. [2019-10-15 01:16:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:37,535 INFO L93 Difference]: Finished difference Result 7259 states and 9498 transitions. [2019-10-15 01:16:37,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:16:37,536 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2019-10-15 01:16:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:37,562 INFO L225 Difference]: With dead ends: 7259 [2019-10-15 01:16:37,563 INFO L226 Difference]: Without dead ends: 4032 [2019-10-15 01:16:37,576 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2019-10-15 01:16:37,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4002. [2019-10-15 01:16:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4002 states. [2019-10-15 01:16:37,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 5311 transitions. [2019-10-15 01:16:37,783 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 5311 transitions. Word has length 217 [2019-10-15 01:16:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:37,784 INFO L462 AbstractCegarLoop]: Abstraction has 4002 states and 5311 transitions. [2019-10-15 01:16:37,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 5311 transitions. [2019-10-15 01:16:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:16:37,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:37,794 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:37,794 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:37,794 INFO L82 PathProgramCache]: Analyzing trace with hash -237433837, now seen corresponding path program 1 times [2019-10-15 01:16:37,795 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:37,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394832180] [2019-10-15 01:16:37,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:37,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:37,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:38,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394832180] [2019-10-15 01:16:38,002 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:38,002 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:38,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931360602] [2019-10-15 01:16:38,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:38,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:38,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:38,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:38,005 INFO L87 Difference]: Start difference. First operand 4002 states and 5311 transitions. Second operand 5 states. [2019-10-15 01:16:39,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:39,564 INFO L93 Difference]: Finished difference Result 13897 states and 18362 transitions. [2019-10-15 01:16:39,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:39,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-15 01:16:39,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:39,632 INFO L225 Difference]: With dead ends: 13897 [2019-10-15 01:16:39,632 INFO L226 Difference]: Without dead ends: 9442 [2019-10-15 01:16:39,650 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 01:16:39,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2019-10-15 01:16:40,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 9162. [2019-10-15 01:16:40,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9162 states. [2019-10-15 01:16:40,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9162 states to 9162 states and 12207 transitions. [2019-10-15 01:16:40,092 INFO L78 Accepts]: Start accepts. Automaton has 9162 states and 12207 transitions. Word has length 217 [2019-10-15 01:16:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:40,092 INFO L462 AbstractCegarLoop]: Abstraction has 9162 states and 12207 transitions. [2019-10-15 01:16:40,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:40,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9162 states and 12207 transitions. [2019-10-15 01:16:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:16:40,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:40,111 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:40,111 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:40,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash -111913891, now seen corresponding path program 1 times [2019-10-15 01:16:40,112 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:40,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896968716] [2019-10-15 01:16:40,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:40,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:40,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:40,415 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:40,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896968716] [2019-10-15 01:16:40,416 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:40,416 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:40,418 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184049411] [2019-10-15 01:16:40,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:40,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:40,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:40,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:40,419 INFO L87 Difference]: Start difference. First operand 9162 states and 12207 transitions. Second operand 3 states. [2019-10-15 01:16:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:40,728 INFO L93 Difference]: Finished difference Result 18887 states and 25507 transitions. [2019-10-15 01:16:40,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:40,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-15 01:16:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:40,787 INFO L225 Difference]: With dead ends: 18887 [2019-10-15 01:16:40,788 INFO L226 Difference]: Without dead ends: 9790 [2019-10-15 01:16:40,820 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 01:16:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2019-10-15 01:16:41,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 9786. [2019-10-15 01:16:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2019-10-15 01:16:41,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 13353 transitions. [2019-10-15 01:16:41,256 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 13353 transitions. Word has length 238 [2019-10-15 01:16:41,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:41,258 INFO L462 AbstractCegarLoop]: Abstraction has 9786 states and 13353 transitions. [2019-10-15 01:16:41,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 13353 transitions. [2019-10-15 01:16:41,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-15 01:16:41,279 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:41,279 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:41,279 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:41,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:41,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1192037515, now seen corresponding path program 1 times [2019-10-15 01:16:41,280 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:41,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131225824] [2019-10-15 01:16:41,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:41,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:41,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:41,606 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:41,607 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131225824] [2019-10-15 01:16:41,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:41,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:41,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273931648] [2019-10-15 01:16:41,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:41,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:41,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:41,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:41,609 INFO L87 Difference]: Start difference. First operand 9786 states and 13353 transitions. Second operand 8 states. [2019-10-15 01:16:47,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:47,486 INFO L93 Difference]: Finished difference Result 29724 states and 42049 transitions. [2019-10-15 01:16:47,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:47,487 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-15 01:16:47,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:47,597 INFO L225 Difference]: With dead ends: 29724 [2019-10-15 01:16:47,597 INFO L226 Difference]: Without dead ends: 20003 [2019-10-15 01:16:47,634 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:47,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20003 states. [2019-10-15 01:16:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20003 to 12038. [2019-10-15 01:16:48,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12038 states. [2019-10-15 01:16:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12038 states to 12038 states and 17849 transitions. [2019-10-15 01:16:48,435 INFO L78 Accepts]: Start accepts. Automaton has 12038 states and 17849 transitions. Word has length 254 [2019-10-15 01:16:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:48,435 INFO L462 AbstractCegarLoop]: Abstraction has 12038 states and 17849 transitions. [2019-10-15 01:16:48,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 12038 states and 17849 transitions. [2019-10-15 01:16:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:16:48,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:48,473 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:48,473 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:48,473 INFO L82 PathProgramCache]: Analyzing trace with hash -944657491, now seen corresponding path program 1 times [2019-10-15 01:16:48,474 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:48,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545774730] [2019-10-15 01:16:48,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:48,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:48,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:48,685 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:48,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545774730] [2019-10-15 01:16:48,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:48,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:48,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077296273] [2019-10-15 01:16:48,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:48,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:48,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:48,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:48,688 INFO L87 Difference]: Start difference. First operand 12038 states and 17849 transitions. Second operand 8 states.