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 -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:07:49,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:07:49,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:07:49,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:07:49,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:07:49,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:07:49,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:07:49,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:07:49,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:07:49,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:07:49,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:07:49,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:07:49,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:07:49,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:07:49,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:07:49,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:07:49,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:07:49,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:07:49,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:07:49,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:07:49,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:07:49,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:07:49,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:07:49,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:07:49,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:07:49,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:07:49,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:07:49,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:07:49,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:07:49,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:07:49,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:07:49,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:07:49,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:07:49,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:07:49,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:07:49,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:07:49,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:07:49,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:07:49,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:07:49,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:07:49,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:07:49,739 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 [2019-10-02 13:07:49,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:07:49,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:07:49,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:07:49,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:07:49,771 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:07:49,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:07:49,771 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:07:49,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:07:49,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:07:49,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:07:49,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:07:49,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:07:49,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:07:49,774 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:07:49,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:07:49,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:07:49,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:07:49,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:07:49,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:07:49,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:07:49,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:07:49,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:07:49,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:07:49,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:07:49,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:07:49,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:07:49,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:07:49,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:07:49,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:07:49,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:07:49,827 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:07:49,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:07:49,832 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:07:49,833 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:07:49,834 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-10-02 13:07:49,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d57cf536/df2a2e1b27eb4374a03e21a4e21dfebe/FLAG2876e7d96 [2019-10-02 13:07:50,500 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:07:50,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-10-02 13:07:50,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d57cf536/df2a2e1b27eb4374a03e21a4e21dfebe/FLAG2876e7d96 [2019-10-02 13:07:50,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d57cf536/df2a2e1b27eb4374a03e21a4e21dfebe [2019-10-02 13:07:50,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:07:50,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:07:50,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:07:50,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:07:50,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:07:50,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:07:50" (1/1) ... [2019-10-02 13:07:50,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe97d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:50, skipping insertion in model container [2019-10-02 13:07:50,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:07:50" (1/1) ... [2019-10-02 13:07:50,796 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:07:50,882 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:07:51,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:07:51,736 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:07:51,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:07:52,030 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:07:52,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52 WrapperNode [2019-10-02 13:07:52,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:07:52,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:07:52,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:07:52,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:07:52,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (1/1) ... [2019-10-02 13:07:52,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:07:52,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:07:52,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:07:52,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:07:52,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (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 [2019-10-02 13:07:52,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:07:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:07:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:07:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:07:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:07:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:07:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:07:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:07:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:07:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:07:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:07:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:07:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:07:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:07:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:07:52,328 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:07:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:07:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:07:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:07:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:07:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:07:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:07:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:07:52,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:07:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-02 13:07:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-02 13:07:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:07:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:07:52,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:07:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:07:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:07:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:07:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:07:52,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:07:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:07:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:07:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:07:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:07:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:07:52,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:07:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:07:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:07:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:07:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:07:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:07:52,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:07:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:07:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:07:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:07:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:07:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:07:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:07:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:07:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:07:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:07:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:07:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:07:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:07:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:07:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:07:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-02 13:07:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:07:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:07:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:07:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-02 13:07:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:07:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:07:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:07:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:07:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:07:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:07:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:07:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:07:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:07:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:07:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:07:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:07:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:07:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:07:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:07:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:07:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:07:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:07:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:07:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:07:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:07:52,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:07:52,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:07:52,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:07:52,348 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:07:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:07:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:07:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:07:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:07:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:07:52,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:07:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:07:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:07:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:07:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:07:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:07:52,350 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:07:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:07:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:07:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:07:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:07:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:07:52,351 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:07:52,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:07:52,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:07:52,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:07:52,352 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:07:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:07:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:07:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:07:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:07:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:07:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:07:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:07:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-10-02 13:07:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:07:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:07:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:07:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:07:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:07:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:07:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:07:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:07:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:07:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:07:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:07:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:07:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:07:52,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:07:52,361 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:07:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:07:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:07:52,362 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:07:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:07:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:07:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:07:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:07:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:07:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:07:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:07:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:07:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:07:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:07:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:07:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:07:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:07:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:07:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:07:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:07:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:07:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:07:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:07:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:07:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:07:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:07:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:07:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-02 13:07:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:07:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-02 13:07:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:07:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:07:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:07:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:07:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:07:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:07:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:07:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:07:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:07:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:07:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:07:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:07:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:07:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:07:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:07:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:07:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:07:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:07:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:07:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:07:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:07:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:07:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:07:54,569 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:07:54,569 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:07:54,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:07:54 BoogieIcfgContainer [2019-10-02 13:07:54,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:07:54,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:07:54,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:07:54,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:07:54,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:07:50" (1/3) ... [2019-10-02 13:07:54,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d9ab6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:07:54, skipping insertion in model container [2019-10-02 13:07:54,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:07:52" (2/3) ... [2019-10-02 13:07:54,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d9ab6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:07:54, skipping insertion in model container [2019-10-02 13:07:54,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:07:54" (3/3) ... [2019-10-02 13:07:54,579 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2019-10-02 13:07:54,590 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:07:54,601 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:07:54,620 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:07:54,655 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:07:54,656 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:07:54,656 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:07:54,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:07:54,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:07:54,656 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:07:54,656 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:07:54,656 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:07:54,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:07:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states. [2019-10-02 13:07:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-02 13:07:54,733 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:54,735 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:07:54,742 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:54,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:54,749 INFO L82 PathProgramCache]: Analyzing trace with hash -938769841, now seen corresponding path program 1 times [2019-10-02 13:07:54,751 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:54,754 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:54,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:54,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:54,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-02 13:07:55,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:55,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:07:55,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:07:55,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:07:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:07:55,459 INFO L87 Difference]: Start difference. First operand 511 states. Second operand 2 states. [2019-10-02 13:07:55,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:55,540 INFO L93 Difference]: Finished difference Result 729 states and 970 transitions. [2019-10-02 13:07:55,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:07:55,546 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 209 [2019-10-02 13:07:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:55,581 INFO L225 Difference]: With dead ends: 729 [2019-10-02 13:07:55,582 INFO L226 Difference]: Without dead ends: 465 [2019-10-02 13:07:55,593 INFO L640 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 [2019-10-02 13:07:55,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-10-02 13:07:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2019-10-02 13:07:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-10-02 13:07:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 620 transitions. [2019-10-02 13:07:55,714 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 620 transitions. Word has length 209 [2019-10-02 13:07:55,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:55,717 INFO L475 AbstractCegarLoop]: Abstraction has 465 states and 620 transitions. [2019-10-02 13:07:55,717 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:07:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 620 transitions. [2019-10-02 13:07:55,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-02 13:07:55,723 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:55,724 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:07:55,724 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash 102873513, now seen corresponding path program 1 times [2019-10-02 13:07:55,725 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:55,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:55,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:55,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:55,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-02 13:07:56,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:56,033 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:07:56,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:07:56,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:07:56,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:07:56,041 INFO L87 Difference]: Start difference. First operand 465 states and 620 transitions. Second operand 3 states. [2019-10-02 13:07:56,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:56,127 INFO L93 Difference]: Finished difference Result 712 states and 934 transitions. [2019-10-02 13:07:56,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:07:56,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-10-02 13:07:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:56,140 INFO L225 Difference]: With dead ends: 712 [2019-10-02 13:07:56,141 INFO L226 Difference]: Without dead ends: 468 [2019-10-02 13:07:56,155 INFO L640 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 [2019-10-02 13:07:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-02 13:07:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-10-02 13:07:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-02 13:07:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 622 transitions. [2019-10-02 13:07:56,215 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 622 transitions. Word has length 210 [2019-10-02 13:07:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:56,218 INFO L475 AbstractCegarLoop]: Abstraction has 467 states and 622 transitions. [2019-10-02 13:07:56,218 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:07:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 622 transitions. [2019-10-02 13:07:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-02 13:07:56,229 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:56,229 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:56,230 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:56,230 INFO L82 PathProgramCache]: Analyzing trace with hash -617880459, now seen corresponding path program 1 times [2019-10-02 13:07:56,231 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:56,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:56,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:56,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:56,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-02 13:07:56,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:56,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:07:56,556 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:07:56,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:07:56,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:07:56,560 INFO L87 Difference]: Start difference. First operand 467 states and 622 transitions. Second operand 3 states. [2019-10-02 13:07:56,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:56,608 INFO L93 Difference]: Finished difference Result 908 states and 1239 transitions. [2019-10-02 13:07:56,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:07:56,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2019-10-02 13:07:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:56,614 INFO L225 Difference]: With dead ends: 908 [2019-10-02 13:07:56,614 INFO L226 Difference]: Without dead ends: 506 [2019-10-02 13:07:56,616 INFO L640 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 [2019-10-02 13:07:56,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-10-02 13:07:56,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 505. [2019-10-02 13:07:56,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2019-10-02 13:07:56,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 688 transitions. [2019-10-02 13:07:56,652 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 688 transitions. Word has length 216 [2019-10-02 13:07:56,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:56,655 INFO L475 AbstractCegarLoop]: Abstraction has 505 states and 688 transitions. [2019-10-02 13:07:56,655 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:07:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 688 transitions. [2019-10-02 13:07:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-02 13:07:56,663 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:56,664 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:56,664 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:56,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:56,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1274420057, now seen corresponding path program 1 times [2019-10-02 13:07:56,665 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:56,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:56,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:56,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:56,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-02 13:07:57,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:57,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:07:57,005 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:07:57,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:07:57,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:07:57,006 INFO L87 Difference]: Start difference. First operand 505 states and 688 transitions. Second operand 7 states. [2019-10-02 13:07:58,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:07:58,663 INFO L93 Difference]: Finished difference Result 1199 states and 1625 transitions. [2019-10-02 13:07:58,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-02 13:07:58,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2019-10-02 13:07:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:07:58,671 INFO L225 Difference]: With dead ends: 1199 [2019-10-02 13:07:58,672 INFO L226 Difference]: Without dead ends: 973 [2019-10-02 13:07:58,674 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:07:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2019-10-02 13:07:58,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 967. [2019-10-02 13:07:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2019-10-02 13:07:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1300 transitions. [2019-10-02 13:07:58,734 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1300 transitions. Word has length 217 [2019-10-02 13:07:58,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:07:58,735 INFO L475 AbstractCegarLoop]: Abstraction has 967 states and 1300 transitions. [2019-10-02 13:07:58,735 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:07:58,735 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1300 transitions. [2019-10-02 13:07:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-02 13:07:58,741 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:07:58,742 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:07:58,742 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:07:58,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:07:58,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1026929155, now seen corresponding path program 1 times [2019-10-02 13:07:58,743 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:07:58,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:07:58,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:58,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:07:58,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:07:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:07:59,368 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-02 13:07:59,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:07:59,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-02 13:07:59,369 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-02 13:07:59,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-02 13:07:59,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-10-02 13:07:59,372 INFO L87 Difference]: Start difference. First operand 967 states and 1300 transitions. Second operand 24 states. [2019-10-02 13:08:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:00,097 INFO L93 Difference]: Finished difference Result 1742 states and 2368 transitions. [2019-10-02 13:08:00,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-02 13:08:00,098 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 218 [2019-10-02 13:08:00,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:00,105 INFO L225 Difference]: With dead ends: 1742 [2019-10-02 13:08:00,105 INFO L226 Difference]: Without dead ends: 1011 [2019-10-02 13:08:00,109 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:08:00,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2019-10-02 13:08:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1009. [2019-10-02 13:08:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2019-10-02 13:08:00,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1383 transitions. [2019-10-02 13:08:00,168 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1383 transitions. Word has length 218 [2019-10-02 13:08:00,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:00,169 INFO L475 AbstractCegarLoop]: Abstraction has 1009 states and 1383 transitions. [2019-10-02 13:08:00,169 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-02 13:08:00,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1383 transitions. [2019-10-02 13:08:00,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-02 13:08:00,178 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:00,178 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:00,179 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:00,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:00,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1371369681, now seen corresponding path program 1 times [2019-10-02 13:08:00,180 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:00,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:00,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:00,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:00,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-02 13:08:00,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:08:00,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-02 13:08:00,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-02 13:08:00,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-02 13:08:00,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:08:00,546 INFO L87 Difference]: Start difference. First operand 1009 states and 1383 transitions. Second operand 10 states. [2019-10-02 13:08:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:00,655 INFO L93 Difference]: Finished difference Result 1571 states and 2146 transitions. [2019-10-02 13:08:00,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:08:00,656 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 222 [2019-10-02 13:08:00,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:00,665 INFO L225 Difference]: With dead ends: 1571 [2019-10-02 13:08:00,665 INFO L226 Difference]: Without dead ends: 1069 [2019-10-02 13:08:00,668 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-02 13:08:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2019-10-02 13:08:00,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1021. [2019-10-02 13:08:00,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2019-10-02 13:08:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1394 transitions. [2019-10-02 13:08:00,730 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1394 transitions. Word has length 222 [2019-10-02 13:08:00,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:00,731 INFO L475 AbstractCegarLoop]: Abstraction has 1021 states and 1394 transitions. [2019-10-02 13:08:00,731 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-02 13:08:00,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1394 transitions. [2019-10-02 13:08:00,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-02 13:08:00,737 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:00,738 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:00,738 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:00,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1192464368, now seen corresponding path program 1 times [2019-10-02 13:08:00,738 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:00,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:00,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:00,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:00,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-02 13:08:00,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:08:00,948 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:08:01,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:01,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 2712 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:08:01,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:08:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-02 13:08:01,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:08:01,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2019-10-02 13:08:01,806 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 13:08:01,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 13:08:01,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:08:01,807 INFO L87 Difference]: Start difference. First operand 1021 states and 1394 transitions. Second operand 13 states. [2019-10-02 13:08:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:04,872 INFO L93 Difference]: Finished difference Result 3008 states and 4163 transitions. [2019-10-02 13:08:04,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:08:04,873 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2019-10-02 13:08:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:04,890 INFO L225 Difference]: With dead ends: 3008 [2019-10-02 13:08:04,890 INFO L226 Difference]: Without dead ends: 2023 [2019-10-02 13:08:04,896 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:08:04,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-10-02 13:08:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1996. [2019-10-02 13:08:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2019-10-02 13:08:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2759 transitions. [2019-10-02 13:08:05,042 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2759 transitions. Word has length 227 [2019-10-02 13:08:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:05,043 INFO L475 AbstractCegarLoop]: Abstraction has 1996 states and 2759 transitions. [2019-10-02 13:08:05,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 13:08:05,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2759 transitions. [2019-10-02 13:08:05,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-02 13:08:05,051 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:05,051 INFO L411 BasicCegarLoop]: trace histogram [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] [2019-10-02 13:08:05,052 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:05,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:05,052 INFO L82 PathProgramCache]: Analyzing trace with hash -885668672, now seen corresponding path program 1 times [2019-10-02 13:08:05,052 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:05,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:05,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:05,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:05,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:08:05,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:08:05,359 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:08:05,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:05,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 2714 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:08:05,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:08:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-02 13:08:06,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:08:06,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2019-10-02 13:08:06,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-02 13:08:06,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-02 13:08:06,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2019-10-02 13:08:06,078 INFO L87 Difference]: Start difference. First operand 1996 states and 2759 transitions. Second operand 16 states. [2019-10-02 13:08:07,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:07,979 INFO L93 Difference]: Finished difference Result 3961 states and 5522 transitions. [2019-10-02 13:08:07,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:08:07,980 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2019-10-02 13:08:07,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:08,001 INFO L225 Difference]: With dead ends: 3961 [2019-10-02 13:08:08,001 INFO L226 Difference]: Without dead ends: 2016 [2019-10-02 13:08:08,013 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2019-10-02 13:08:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2019-10-02 13:08:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 2006. [2019-10-02 13:08:08,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2019-10-02 13:08:08,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2779 transitions. [2019-10-02 13:08:08,145 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2779 transitions. Word has length 229 [2019-10-02 13:08:08,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:08,146 INFO L475 AbstractCegarLoop]: Abstraction has 2006 states and 2779 transitions. [2019-10-02 13:08:08,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-02 13:08:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2779 transitions. [2019-10-02 13:08:08,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-02 13:08:08,161 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:08,162 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:08,162 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:08,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:08,163 INFO L82 PathProgramCache]: Analyzing trace with hash -216581935, now seen corresponding path program 1 times [2019-10-02 13:08:08,163 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:08,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:08,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:08,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:08,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:08,424 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-02 13:08:08,425 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:08:08,425 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:08:08,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:08,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:08:09,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:08:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-02 13:08:09,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:08:09,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2019-10-02 13:08:09,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-02 13:08:09,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-02 13:08:09,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-02 13:08:09,324 INFO L87 Difference]: Start difference. First operand 2006 states and 2779 transitions. Second operand 12 states. [2019-10-02 13:08:13,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:13,083 INFO L93 Difference]: Finished difference Result 7347 states and 10362 transitions. [2019-10-02 13:08:13,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 13:08:13,084 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 230 [2019-10-02 13:08:13,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:13,123 INFO L225 Difference]: With dead ends: 7347 [2019-10-02 13:08:13,123 INFO L226 Difference]: Without dead ends: 5402 [2019-10-02 13:08:13,134 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2019-10-02 13:08:13,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2019-10-02 13:08:13,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5360. [2019-10-02 13:08:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5360 states. [2019-10-02 13:08:13,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 7474 transitions. [2019-10-02 13:08:13,518 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 7474 transitions. Word has length 230 [2019-10-02 13:08:13,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:13,518 INFO L475 AbstractCegarLoop]: Abstraction has 5360 states and 7474 transitions. [2019-10-02 13:08:13,519 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-02 13:08:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 7474 transitions. [2019-10-02 13:08:13,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-02 13:08:13,537 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:13,538 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:13,539 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:13,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:13,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1407887821, now seen corresponding path program 1 times [2019-10-02 13:08:13,539 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:13,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:13,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:13,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:13,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-10-02 13:08:13,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:08:13,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-02 13:08:13,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 13:08:13,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 13:08:13,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:08:13,862 INFO L87 Difference]: Start difference. First operand 5360 states and 7474 transitions. Second operand 7 states. [2019-10-02 13:08:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:16,496 INFO L93 Difference]: Finished difference Result 13780 states and 18904 transitions. [2019-10-02 13:08:16,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-02 13:08:16,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2019-10-02 13:08:16,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:16,576 INFO L225 Difference]: With dead ends: 13780 [2019-10-02 13:08:16,576 INFO L226 Difference]: Without dead ends: 9687 [2019-10-02 13:08:16,595 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:08:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2019-10-02 13:08:17,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9588. [2019-10-02 13:08:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9588 states. [2019-10-02 13:08:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9588 states to 9588 states and 13236 transitions. [2019-10-02 13:08:17,261 INFO L78 Accepts]: Start accepts. Automaton has 9588 states and 13236 transitions. Word has length 232 [2019-10-02 13:08:17,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:17,262 INFO L475 AbstractCegarLoop]: Abstraction has 9588 states and 13236 transitions. [2019-10-02 13:08:17,262 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 13:08:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9588 states and 13236 transitions. [2019-10-02 13:08:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-02 13:08:17,277 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:17,277 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:17,277 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:17,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:17,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1597802651, now seen corresponding path program 1 times [2019-10-02 13:08:17,278 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:17,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:17,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:17,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:17,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-10-02 13:08:17,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:08:17,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-02 13:08:17,918 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-02 13:08:17,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-02 13:08:17,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-02 13:08:17,920 INFO L87 Difference]: Start difference. First operand 9588 states and 13236 transitions. Second operand 26 states. [2019-10-02 13:08:18,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:18,924 INFO L93 Difference]: Finished difference Result 18362 states and 25103 transitions. [2019-10-02 13:08:18,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-02 13:08:18,924 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 233 [2019-10-02 13:08:18,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:19,005 INFO L225 Difference]: With dead ends: 18362 [2019-10-02 13:08:19,006 INFO L226 Difference]: Without dead ends: 9845 [2019-10-02 13:08:19,040 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-02 13:08:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9845 states. [2019-10-02 13:08:19,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9845 to 9784. [2019-10-02 13:08:19,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9784 states. [2019-10-02 13:08:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 13434 transitions. [2019-10-02 13:08:19,682 INFO L78 Accepts]: Start accepts. Automaton has 9784 states and 13434 transitions. Word has length 233 [2019-10-02 13:08:19,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:19,682 INFO L475 AbstractCegarLoop]: Abstraction has 9784 states and 13434 transitions. [2019-10-02 13:08:19,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-02 13:08:19,683 INFO L276 IsEmpty]: Start isEmpty. Operand 9784 states and 13434 transitions. [2019-10-02 13:08:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-10-02 13:08:19,701 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:19,701 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:19,701 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:19,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:19,702 INFO L82 PathProgramCache]: Analyzing trace with hash -395021077, now seen corresponding path program 1 times [2019-10-02 13:08:19,702 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:19,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:19,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:19,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:19,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-10-02 13:08:19,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:08:19,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:08:19,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:08:19,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:08:19,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:08:19,914 INFO L87 Difference]: Start difference. First operand 9784 states and 13434 transitions. Second operand 8 states. [2019-10-02 13:08:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:24,947 INFO L93 Difference]: Finished difference Result 37321 states and 51860 transitions. [2019-10-02 13:08:24,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:08:24,948 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 264 [2019-10-02 13:08:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:25,113 INFO L225 Difference]: With dead ends: 37321 [2019-10-02 13:08:25,113 INFO L226 Difference]: Without dead ends: 28816 [2019-10-02 13:08:25,161 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:08:25,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28816 states. [2019-10-02 13:08:27,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28816 to 28750. [2019-10-02 13:08:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28750 states. [2019-10-02 13:08:27,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28750 states to 28750 states and 39874 transitions. [2019-10-02 13:08:27,734 INFO L78 Accepts]: Start accepts. Automaton has 28750 states and 39874 transitions. Word has length 264 [2019-10-02 13:08:27,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:27,735 INFO L475 AbstractCegarLoop]: Abstraction has 28750 states and 39874 transitions. [2019-10-02 13:08:27,735 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:08:27,735 INFO L276 IsEmpty]: Start isEmpty. Operand 28750 states and 39874 transitions. [2019-10-02 13:08:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-02 13:08:27,768 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:27,768 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:27,768 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:27,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:27,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1397359716, now seen corresponding path program 1 times [2019-10-02 13:08:27,769 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:27,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:27,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:27,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:27,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-10-02 13:08:28,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:08:28,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-02 13:08:28,385 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-02 13:08:28,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-02 13:08:28,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-02 13:08:28,386 INFO L87 Difference]: Start difference. First operand 28750 states and 39874 transitions. Second operand 22 states. [2019-10-02 13:08:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:29,452 INFO L93 Difference]: Finished difference Result 44659 states and 61482 transitions. [2019-10-02 13:08:29,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-02 13:08:29,453 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 265 [2019-10-02 13:08:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:29,583 INFO L225 Difference]: With dead ends: 44659 [2019-10-02 13:08:29,583 INFO L226 Difference]: Without dead ends: 24282 [2019-10-02 13:08:29,647 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-02 13:08:29,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24282 states. [2019-10-02 13:08:31,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24282 to 23470. [2019-10-02 13:08:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23470 states. [2019-10-02 13:08:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23470 states to 23470 states and 32619 transitions. [2019-10-02 13:08:31,134 INFO L78 Accepts]: Start accepts. Automaton has 23470 states and 32619 transitions. Word has length 265 [2019-10-02 13:08:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:31,135 INFO L475 AbstractCegarLoop]: Abstraction has 23470 states and 32619 transitions. [2019-10-02 13:08:31,135 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-02 13:08:31,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23470 states and 32619 transitions. [2019-10-02 13:08:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-10-02 13:08:31,167 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:31,167 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:31,168 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:31,168 INFO L82 PathProgramCache]: Analyzing trace with hash -329104805, now seen corresponding path program 1 times [2019-10-02 13:08:31,168 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:31,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:31,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:31,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:31,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-10-02 13:08:31,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:08:31,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:08:31,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:08:31,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:08:31,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:08:31,394 INFO L87 Difference]: Start difference. First operand 23470 states and 32619 transitions. Second operand 8 states. [2019-10-02 13:08:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:08:33,957 INFO L93 Difference]: Finished difference Result 68636 states and 95270 transitions. [2019-10-02 13:08:33,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-02 13:08:33,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 274 [2019-10-02 13:08:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:08:34,240 INFO L225 Difference]: With dead ends: 68636 [2019-10-02 13:08:34,240 INFO L226 Difference]: Without dead ends: 47407 [2019-10-02 13:08:34,314 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-02 13:08:34,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47407 states. [2019-10-02 13:08:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47407 to 46878. [2019-10-02 13:08:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46878 states. [2019-10-02 13:08:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46878 states to 46878 states and 65125 transitions. [2019-10-02 13:08:36,692 INFO L78 Accepts]: Start accepts. Automaton has 46878 states and 65125 transitions. Word has length 274 [2019-10-02 13:08:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:08:36,693 INFO L475 AbstractCegarLoop]: Abstraction has 46878 states and 65125 transitions. [2019-10-02 13:08:36,693 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:08:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 46878 states and 65125 transitions. [2019-10-02 13:08:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-10-02 13:08:36,755 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:08:36,755 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:08:36,755 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:08:36,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:08:36,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1529646268, now seen corresponding path program 1 times [2019-10-02 13:08:36,756 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:08:36,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:08:36,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:36,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:36,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:08:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:08:37,742 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:08:37,743 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:08:37,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:08:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:08:38,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:08:38,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:08:38,613 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-02 13:08:38,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:08:38,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-10-02 13:08:38,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-10-02 13:08:38,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-10-02 13:08:38,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-10-02 13:08:38,622 INFO L87 Difference]: Start difference. First operand 46878 states and 65125 transitions. Second operand 36 states. [2019-10-02 13:08:45,294 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-10-02 13:09:36,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:09:36,758 INFO L93 Difference]: Finished difference Result 448418 states and 671896 transitions. [2019-10-02 13:09:36,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-10-02 13:09:36,759 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 275 [2019-10-02 13:09:36,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:09:38,568 INFO L225 Difference]: With dead ends: 448418 [2019-10-02 13:09:38,568 INFO L226 Difference]: Without dead ends: 401512 [2019-10-02 13:09:38,897 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6761 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:09:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401512 states. [2019-10-02 13:10:01,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401512 to 315904. [2019-10-02 13:10:01,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315904 states. [2019-10-02 13:10:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315904 states to 315904 states and 460773 transitions. [2019-10-02 13:10:08,564 INFO L78 Accepts]: Start accepts. Automaton has 315904 states and 460773 transitions. Word has length 275 [2019-10-02 13:10:08,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:10:08,565 INFO L475 AbstractCegarLoop]: Abstraction has 315904 states and 460773 transitions. [2019-10-02 13:10:08,565 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-10-02 13:10:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 315904 states and 460773 transitions. [2019-10-02 13:10:08,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-10-02 13:10:08,932 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:10:08,934 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:10:08,934 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:10:08,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:10:08,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1418737481, now seen corresponding path program 1 times [2019-10-02 13:10:08,935 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:10:08,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:10:08,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:10:08,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:10:08,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:10:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:10:09,578 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-02 13:10:09,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:10:09,578 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:10:09,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:10:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:10:10,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 2869 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:10:10,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:10:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-02 13:10:10,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:10:10,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-10-02 13:10:10,420 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-10-02 13:10:10,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-10-02 13:10:10,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-10-02 13:10:10,422 INFO L87 Difference]: Start difference. First operand 315904 states and 460773 transitions. Second operand 34 states. [2019-10-02 13:12:20,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:12:20,562 INFO L93 Difference]: Finished difference Result 1893851 states and 2894822 transitions. [2019-10-02 13:12:20,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-10-02 13:12:20,563 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 277 [2019-10-02 13:12:20,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:12:28,603 INFO L225 Difference]: With dead ends: 1893851 [2019-10-02 13:12:28,604 INFO L226 Difference]: Without dead ends: 1576784 [2019-10-02 13:12:29,921 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6985 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-10-02 13:12:31,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576784 states.