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 0.1.24-112bae1 [2019-09-08 04:54:11,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 04:54:12,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 04:54:12,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 04:54:12,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 04:54:12,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 04:54:12,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 04:54:12,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 04:54:12,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 04:54:12,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 04:54:12,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 04:54:12,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 04:54:12,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 04:54:12,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 04:54:12,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 04:54:12,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 04:54:12,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 04:54:12,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 04:54:12,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 04:54:12,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 04:54:12,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 04:54:12,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 04:54:12,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 04:54:12,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 04:54:12,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 04:54:12,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 04:54:12,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 04:54:12,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 04:54:12,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 04:54:12,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 04:54:12,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 04:54:12,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 04:54:12,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 04:54:12,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 04:54:12,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 04:54:12,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 04:54:12,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 04:54:12,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 04:54:12,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 04:54:12,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 04:54:12,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 04:54:12,074 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 [2019-09-08 04:54:12,102 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 04:54:12,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 04:54:12,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 04:54:12,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 04:54:12,106 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 04:54:12,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 04:54:12,106 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 04:54:12,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 04:54:12,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 04:54:12,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 04:54:12,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 04:54:12,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 04:54:12,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 04:54:12,109 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 04:54:12,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 04:54:12,109 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 04:54:12,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 04:54:12,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 04:54:12,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 04:54:12,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 04:54:12,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 04:54:12,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 04:54:12,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 04:54:12,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 04:54:12,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 04:54:12,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 04:54:12,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 04:54:12,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 04:54:12,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 04:54:12,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 04:54:12,182 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 04:54:12,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 04:54:12,190 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 04:54:12,190 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 04:54:12,191 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-09-08 04:54:12,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ad308fcc/5b4e0fdaa01b43a1b7267a63d26ab30f/FLAG62e037326 [2019-09-08 04:54:12,911 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 04:54:12,914 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product28.cil.c [2019-09-08 04:54:12,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ad308fcc/5b4e0fdaa01b43a1b7267a63d26ab30f/FLAG62e037326 [2019-09-08 04:54:13,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ad308fcc/5b4e0fdaa01b43a1b7267a63d26ab30f [2019-09-08 04:54:13,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 04:54:13,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 04:54:13,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 04:54:13,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 04:54:13,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 04:54:13,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:54:13" (1/1) ... [2019-09-08 04:54:13,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dbbd91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:13, skipping insertion in model container [2019-09-08 04:54:13,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 04:54:13" (1/1) ... [2019-09-08 04:54:13,271 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 04:54:13,345 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 04:54:14,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 04:54:14,184 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 04:54:14,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 04:54:14,438 INFO L192 MainTranslator]: Completed translation [2019-09-08 04:54:14,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14 WrapperNode [2019-09-08 04:54:14,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 04:54:14,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 04:54:14,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 04:54:14,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 04:54:14,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (1/1) ... [2019-09-08 04:54:14,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 04:54:14,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 04:54:14,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 04:54:14,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 04:54:14,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (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 [2019-09-08 04:54:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 04:54:14,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 04:54:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 04:54:14,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-09-08 04:54:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-08 04:54:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-08 04:54:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-08 04:54:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-08 04:54:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-08 04:54:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-08 04:54:14,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-08 04:54:14,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-08 04:54:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 04:54:14,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 04:54:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-08 04:54:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-08 04:54:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-08 04:54:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-08 04:54:14,752 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-08 04:54:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-08 04:54:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-08 04:54:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-08 04:54:14,753 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-08 04:54:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-08 04:54:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-09-08 04:54:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-08 04:54:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-08 04:54:14,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-08 04:54:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-08 04:54:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-08 04:54:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-08 04:54:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 04:54:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 04:54:14,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 04:54:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 04:54:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 04:54:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 04:54:14,756 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-08 04:54:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-08 04:54:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-08 04:54:14,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-08 04:54:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-08 04:54:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-08 04:54:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-08 04:54:14,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-08 04:54:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-08 04:54:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-08 04:54:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-08 04:54:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-08 04:54:14,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-08 04:54:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-08 04:54:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-08 04:54:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-08 04:54:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-08 04:54:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-08 04:54:14,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-08 04:54:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-08 04:54:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-08 04:54:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-08 04:54:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-08 04:54:14,761 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-09-08 04:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-08 04:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-08 04:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-08 04:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-09-08 04:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-08 04:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-08 04:54:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-08 04:54:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-08 04:54:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-08 04:54:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-08 04:54:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-08 04:54:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-08 04:54:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-08 04:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-08 04:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-08 04:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 04:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-08 04:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 04:54:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 04:54:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 04:54:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 04:54:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-08 04:54:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-08 04:54:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-08 04:54:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-08 04:54:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-08 04:54:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-08 04:54:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-08 04:54:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-08 04:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-08 04:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-08 04:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-08 04:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-08 04:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-08 04:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-08 04:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-08 04:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-08 04:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-08 04:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-08 04:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-08 04:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-08 04:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-08 04:54:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-08 04:54:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-08 04:54:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 04:54:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 04:54:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 04:54:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 04:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-08 04:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-08 04:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-08 04:54:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-08 04:54:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-09-08 04:54:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 04:54:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 04:54:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-08 04:54:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-08 04:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-08 04:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-08 04:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-08 04:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-08 04:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-08 04:54:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 04:54:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 04:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 04:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-08 04:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-08 04:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-08 04:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-08 04:54:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-08 04:54:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-08 04:54:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-08 04:54:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-08 04:54:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-08 04:54:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-08 04:54:14,787 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-08 04:54:14,788 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 04:54:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-08 04:54:14,797 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-08 04:54:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-08 04:54:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-08 04:54:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-08 04:54:14,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-08 04:54:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-08 04:54:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-08 04:54:14,799 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-08 04:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-08 04:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 04:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 04:54:14,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 04:54:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 04:54:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 04:54:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-08 04:54:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-08 04:54:14,804 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-08 04:54:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-08 04:54:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-08 04:54:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-08 04:54:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-08 04:54:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-08 04:54:14,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-08 04:54:14,806 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-08 04:54:14,807 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-08 04:54:14,808 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-08 04:54:14,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-08 04:54:14,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 04:54:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 04:54:14,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 04:54:17,112 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 04:54:17,113 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 04:54:17,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:54:17 BoogieIcfgContainer [2019-09-08 04:54:17,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 04:54:17,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 04:54:17,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 04:54:17,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 04:54:17,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 04:54:13" (1/3) ... [2019-09-08 04:54:17,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5f551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:54:17, skipping insertion in model container [2019-09-08 04:54:17,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 04:54:14" (2/3) ... [2019-09-08 04:54:17,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5f551c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 04:54:17, skipping insertion in model container [2019-09-08 04:54:17,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 04:54:17" (3/3) ... [2019-09-08 04:54:17,123 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product28.cil.c [2019-09-08 04:54:17,134 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 04:54:17,145 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 04:54:17,162 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 04:54:17,212 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 04:54:17,213 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 04:54:17,213 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 04:54:17,213 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 04:54:17,214 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 04:54:17,214 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 04:54:17,214 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 04:54:17,214 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 04:54:17,214 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 04:54:17,253 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states. [2019-09-08 04:54:17,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-09-08 04:54:17,288 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:17,294 INFO L399 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] [2019-09-08 04:54:17,299 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:17,305 INFO L82 PathProgramCache]: Analyzing trace with hash -938769841, now seen corresponding path program 1 times [2019-09-08 04:54:17,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:17,310 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:17,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:17,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:17,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 04:54:17,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:17,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 04:54:17,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 04:54:17,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 04:54:17,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 04:54:17,905 INFO L87 Difference]: Start difference. First operand 511 states. Second operand 2 states. [2019-09-08 04:54:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:18,024 INFO L93 Difference]: Finished difference Result 729 states and 970 transitions. [2019-09-08 04:54:18,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 04:54:18,026 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 209 [2019-09-08 04:54:18,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:18,069 INFO L225 Difference]: With dead ends: 729 [2019-09-08 04:54:18,069 INFO L226 Difference]: Without dead ends: 465 [2019-09-08 04:54:18,080 INFO L628 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 [2019-09-08 04:54:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-09-08 04:54:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2019-09-08 04:54:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-09-08 04:54:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 620 transitions. [2019-09-08 04:54:18,197 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 620 transitions. Word has length 209 [2019-09-08 04:54:18,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:18,199 INFO L475 AbstractCegarLoop]: Abstraction has 465 states and 620 transitions. [2019-09-08 04:54:18,199 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 04:54:18,200 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 620 transitions. [2019-09-08 04:54:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-09-08 04:54:18,206 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:18,206 INFO L399 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] [2019-09-08 04:54:18,207 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:18,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:18,207 INFO L82 PathProgramCache]: Analyzing trace with hash 102873513, now seen corresponding path program 1 times [2019-09-08 04:54:18,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:18,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:18,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:18,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:18,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:18,503 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 04:54:18,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:18,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 04:54:18,510 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 04:54:18,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 04:54:18,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 04:54:18,511 INFO L87 Difference]: Start difference. First operand 465 states and 620 transitions. Second operand 3 states. [2019-09-08 04:54:18,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:18,578 INFO L93 Difference]: Finished difference Result 712 states and 934 transitions. [2019-09-08 04:54:18,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 04:54:18,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-09-08 04:54:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:18,584 INFO L225 Difference]: With dead ends: 712 [2019-09-08 04:54:18,584 INFO L226 Difference]: Without dead ends: 468 [2019-09-08 04:54:18,587 INFO L628 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 [2019-09-08 04:54:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-09-08 04:54:18,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-09-08 04:54:18,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-09-08 04:54:18,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 622 transitions. [2019-09-08 04:54:18,623 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 622 transitions. Word has length 210 [2019-09-08 04:54:18,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:18,624 INFO L475 AbstractCegarLoop]: Abstraction has 467 states and 622 transitions. [2019-09-08 04:54:18,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 04:54:18,624 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 622 transitions. [2019-09-08 04:54:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-09-08 04:54:18,631 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:18,631 INFO L399 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] [2019-09-08 04:54:18,631 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:18,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:18,632 INFO L82 PathProgramCache]: Analyzing trace with hash -617880459, now seen corresponding path program 1 times [2019-09-08 04:54:18,632 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:18,632 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:18,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:18,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:18,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 04:54:18,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:18,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 04:54:18,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 04:54:18,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 04:54:18,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 04:54:18,874 INFO L87 Difference]: Start difference. First operand 467 states and 622 transitions. Second operand 3 states. [2019-09-08 04:54:18,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:18,907 INFO L93 Difference]: Finished difference Result 908 states and 1239 transitions. [2019-09-08 04:54:18,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 04:54:18,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2019-09-08 04:54:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:18,912 INFO L225 Difference]: With dead ends: 908 [2019-09-08 04:54:18,912 INFO L226 Difference]: Without dead ends: 506 [2019-09-08 04:54:18,914 INFO L628 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 [2019-09-08 04:54:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-09-08 04:54:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 505. [2019-09-08 04:54:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2019-09-08 04:54:18,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 688 transitions. [2019-09-08 04:54:18,936 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 688 transitions. Word has length 216 [2019-09-08 04:54:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:18,937 INFO L475 AbstractCegarLoop]: Abstraction has 505 states and 688 transitions. [2019-09-08 04:54:18,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 04:54:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 688 transitions. [2019-09-08 04:54:18,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-09-08 04:54:18,944 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:18,945 INFO L399 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] [2019-09-08 04:54:18,945 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:18,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:18,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1274420057, now seen corresponding path program 1 times [2019-09-08 04:54:18,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:18,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:18,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:18,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:18,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-08 04:54:19,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:19,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 04:54:19,255 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 04:54:19,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 04:54:19,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 04:54:19,256 INFO L87 Difference]: Start difference. First operand 505 states and 688 transitions. Second operand 7 states. [2019-09-08 04:54:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:20,976 INFO L93 Difference]: Finished difference Result 1199 states and 1625 transitions. [2019-09-08 04:54:20,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 04:54:20,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2019-09-08 04:54:20,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:20,984 INFO L225 Difference]: With dead ends: 1199 [2019-09-08 04:54:20,985 INFO L226 Difference]: Without dead ends: 973 [2019-09-08 04:54:20,986 INFO L628 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 [2019-09-08 04:54:20,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2019-09-08 04:54:21,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 967. [2019-09-08 04:54:21,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2019-09-08 04:54:21,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1300 transitions. [2019-09-08 04:54:21,034 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1300 transitions. Word has length 217 [2019-09-08 04:54:21,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:21,035 INFO L475 AbstractCegarLoop]: Abstraction has 967 states and 1300 transitions. [2019-09-08 04:54:21,035 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 04:54:21,035 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1300 transitions. [2019-09-08 04:54:21,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-09-08 04:54:21,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:21,040 INFO L399 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] [2019-09-08 04:54:21,040 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:21,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:21,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1026929155, now seen corresponding path program 1 times [2019-09-08 04:54:21,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:21,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:21,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:21,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:21,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-08 04:54:21,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:21,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-09-08 04:54:21,603 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 04:54:21,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 04:54:21,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-09-08 04:54:21,604 INFO L87 Difference]: Start difference. First operand 967 states and 1300 transitions. Second operand 24 states. [2019-09-08 04:54:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:22,271 INFO L93 Difference]: Finished difference Result 1742 states and 2368 transitions. [2019-09-08 04:54:22,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-08 04:54:22,272 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 218 [2019-09-08 04:54:22,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:22,280 INFO L225 Difference]: With dead ends: 1742 [2019-09-08 04:54:22,280 INFO L226 Difference]: Without dead ends: 1011 [2019-09-08 04:54:22,283 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 04:54:22,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2019-09-08 04:54:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1009. [2019-09-08 04:54:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2019-09-08 04:54:22,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1383 transitions. [2019-09-08 04:54:22,335 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1383 transitions. Word has length 218 [2019-09-08 04:54:22,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:22,336 INFO L475 AbstractCegarLoop]: Abstraction has 1009 states and 1383 transitions. [2019-09-08 04:54:22,337 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 04:54:22,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1383 transitions. [2019-09-08 04:54:22,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-09-08 04:54:22,342 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:22,342 INFO L399 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] [2019-09-08 04:54:22,342 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:22,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:22,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1371369681, now seen corresponding path program 1 times [2019-09-08 04:54:22,343 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:22,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:22,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:22,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:22,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:22,584 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-08 04:54:22,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:22,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 04:54:22,585 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 04:54:22,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 04:54:22,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 04:54:22,586 INFO L87 Difference]: Start difference. First operand 1009 states and 1383 transitions. Second operand 10 states. [2019-09-08 04:54:22,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:22,675 INFO L93 Difference]: Finished difference Result 1571 states and 2146 transitions. [2019-09-08 04:54:22,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 04:54:22,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 222 [2019-09-08 04:54:22,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:22,683 INFO L225 Difference]: With dead ends: 1571 [2019-09-08 04:54:22,683 INFO L226 Difference]: Without dead ends: 1069 [2019-09-08 04:54:22,686 INFO L628 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 [2019-09-08 04:54:22,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2019-09-08 04:54:22,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1021. [2019-09-08 04:54:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2019-09-08 04:54:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1394 transitions. [2019-09-08 04:54:22,744 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1394 transitions. Word has length 222 [2019-09-08 04:54:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:22,745 INFO L475 AbstractCegarLoop]: Abstraction has 1021 states and 1394 transitions. [2019-09-08 04:54:22,745 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 04:54:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1394 transitions. [2019-09-08 04:54:22,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-09-08 04:54:22,750 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:22,750 INFO L399 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] [2019-09-08 04:54:22,750 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:22,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1192464368, now seen corresponding path program 1 times [2019-09-08 04:54:22,751 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:22,751 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:22,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:22,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:22,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:22,918 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 04:54:22,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:54:22,919 INFO L223 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) [2019-09-08 04:54:22,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 04:54:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:23,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 2712 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 04:54:23,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:54:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-08 04:54:23,852 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:54:23,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2019-09-08 04:54:23,856 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 04:54:23,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 04:54:23,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-09-08 04:54:23,857 INFO L87 Difference]: Start difference. First operand 1021 states and 1394 transitions. Second operand 13 states. [2019-09-08 04:54:26,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:26,695 INFO L93 Difference]: Finished difference Result 3008 states and 4163 transitions. [2019-09-08 04:54:26,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 04:54:26,695 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2019-09-08 04:54:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:26,708 INFO L225 Difference]: With dead ends: 3008 [2019-09-08 04:54:26,709 INFO L226 Difference]: Without dead ends: 2023 [2019-09-08 04:54:26,715 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2019-09-08 04:54:26,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-09-08 04:54:26,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1996. [2019-09-08 04:54:26,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1996 states. [2019-09-08 04:54:26,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2759 transitions. [2019-09-08 04:54:26,865 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2759 transitions. Word has length 227 [2019-09-08 04:54:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:26,866 INFO L475 AbstractCegarLoop]: Abstraction has 1996 states and 2759 transitions. [2019-09-08 04:54:26,866 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 04:54:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2759 transitions. [2019-09-08 04:54:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-09-08 04:54:26,874 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:26,875 INFO L399 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] [2019-09-08 04:54:26,876 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:26,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:26,876 INFO L82 PathProgramCache]: Analyzing trace with hash -885668672, now seen corresponding path program 1 times [2019-09-08 04:54:26,876 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:26,876 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:26,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:26,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:26,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-08 04:54:27,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:54:27,221 INFO L223 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) [2019-09-08 04:54:27,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 04:54:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:27,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 2714 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 04:54:27,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:54:27,850 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 04:54:27,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:54:27,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2019-09-08 04:54:27,860 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 04:54:27,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 04:54:27,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2019-09-08 04:54:27,861 INFO L87 Difference]: Start difference. First operand 1996 states and 2759 transitions. Second operand 16 states. [2019-09-08 04:54:29,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:29,617 INFO L93 Difference]: Finished difference Result 3961 states and 5522 transitions. [2019-09-08 04:54:29,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 04:54:29,618 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2019-09-08 04:54:29,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:29,631 INFO L225 Difference]: With dead ends: 3961 [2019-09-08 04:54:29,631 INFO L226 Difference]: Without dead ends: 2016 [2019-09-08 04:54:29,643 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=691, Unknown=0, NotChecked=0, Total=812 [2019-09-08 04:54:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2019-09-08 04:54:29,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 2006. [2019-09-08 04:54:29,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2019-09-08 04:54:29,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2779 transitions. [2019-09-08 04:54:29,759 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2779 transitions. Word has length 229 [2019-09-08 04:54:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:29,759 INFO L475 AbstractCegarLoop]: Abstraction has 2006 states and 2779 transitions. [2019-09-08 04:54:29,759 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 04:54:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2779 transitions. [2019-09-08 04:54:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-09-08 04:54:29,767 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:29,768 INFO L399 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] [2019-09-08 04:54:29,768 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:29,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:29,768 INFO L82 PathProgramCache]: Analyzing trace with hash -216581935, now seen corresponding path program 1 times [2019-09-08 04:54:29,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:29,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:29,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:29,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:29,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:30,005 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 04:54:30,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:54:30,006 INFO L223 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) [2019-09-08 04:54:30,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 04:54:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:30,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 04:54:30,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:54:30,573 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 04:54:30,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:54:30,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2019-09-08 04:54:30,589 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 04:54:30,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 04:54:30,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-08 04:54:30,592 INFO L87 Difference]: Start difference. First operand 2006 states and 2779 transitions. Second operand 12 states. [2019-09-08 04:54:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:34,001 INFO L93 Difference]: Finished difference Result 7347 states and 10362 transitions. [2019-09-08 04:54:34,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 04:54:34,001 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 230 [2019-09-08 04:54:34,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:34,043 INFO L225 Difference]: With dead ends: 7347 [2019-09-08 04:54:34,043 INFO L226 Difference]: Without dead ends: 5402 [2019-09-08 04:54:34,057 INFO L628 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 [2019-09-08 04:54:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5402 states. [2019-09-08 04:54:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5402 to 5360. [2019-09-08 04:54:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5360 states. [2019-09-08 04:54:34,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 7474 transitions. [2019-09-08 04:54:34,408 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 7474 transitions. Word has length 230 [2019-09-08 04:54:34,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:34,409 INFO L475 AbstractCegarLoop]: Abstraction has 5360 states and 7474 transitions. [2019-09-08 04:54:34,409 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 04:54:34,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 7474 transitions. [2019-09-08 04:54:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-09-08 04:54:34,421 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:34,422 INFO L399 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] [2019-09-08 04:54:34,422 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:34,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:34,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1407887821, now seen corresponding path program 1 times [2019-09-08 04:54:34,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:34,423 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:34,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:34,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:34,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-09-08 04:54:34,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:34,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 04:54:34,671 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 04:54:34,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 04:54:34,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 04:54:34,672 INFO L87 Difference]: Start difference. First operand 5360 states and 7474 transitions. Second operand 7 states. [2019-09-08 04:54:36,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:36,962 INFO L93 Difference]: Finished difference Result 13780 states and 18904 transitions. [2019-09-08 04:54:36,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 04:54:36,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2019-09-08 04:54:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:37,049 INFO L225 Difference]: With dead ends: 13780 [2019-09-08 04:54:37,049 INFO L226 Difference]: Without dead ends: 9687 [2019-09-08 04:54:37,073 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-08 04:54:37,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9687 states. [2019-09-08 04:54:37,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9687 to 9588. [2019-09-08 04:54:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9588 states. [2019-09-08 04:54:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9588 states to 9588 states and 13236 transitions. [2019-09-08 04:54:37,774 INFO L78 Accepts]: Start accepts. Automaton has 9588 states and 13236 transitions. Word has length 232 [2019-09-08 04:54:37,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:37,776 INFO L475 AbstractCegarLoop]: Abstraction has 9588 states and 13236 transitions. [2019-09-08 04:54:37,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 04:54:37,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9588 states and 13236 transitions. [2019-09-08 04:54:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-08 04:54:37,793 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:37,793 INFO L399 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] [2019-09-08 04:54:37,793 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:37,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:37,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1597802651, now seen corresponding path program 1 times [2019-09-08 04:54:37,794 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:37,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:37,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:37,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:37,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-09-08 04:54:38,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:38,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-09-08 04:54:38,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-08 04:54:38,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-08 04:54:38,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-09-08 04:54:38,383 INFO L87 Difference]: Start difference. First operand 9588 states and 13236 transitions. Second operand 26 states. [2019-09-08 04:54:39,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:39,352 INFO L93 Difference]: Finished difference Result 18362 states and 25103 transitions. [2019-09-08 04:54:39,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 04:54:39,353 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 233 [2019-09-08 04:54:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:39,425 INFO L225 Difference]: With dead ends: 18362 [2019-09-08 04:54:39,425 INFO L226 Difference]: Without dead ends: 9845 [2019-09-08 04:54:39,456 INFO L628 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 [2019-09-08 04:54:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9845 states. [2019-09-08 04:54:39,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9845 to 9784. [2019-09-08 04:54:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9784 states. [2019-09-08 04:54:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 13434 transitions. [2019-09-08 04:54:39,932 INFO L78 Accepts]: Start accepts. Automaton has 9784 states and 13434 transitions. Word has length 233 [2019-09-08 04:54:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:39,933 INFO L475 AbstractCegarLoop]: Abstraction has 9784 states and 13434 transitions. [2019-09-08 04:54:39,933 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-08 04:54:39,933 INFO L276 IsEmpty]: Start isEmpty. Operand 9784 states and 13434 transitions. [2019-09-08 04:54:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2019-09-08 04:54:39,949 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:39,949 INFO L399 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] [2019-09-08 04:54:39,949 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash -395021077, now seen corresponding path program 1 times [2019-09-08 04:54:39,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:39,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:39,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:39,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:39,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:40,261 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-09-08 04:54:40,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:40,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 04:54:40,262 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 04:54:40,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 04:54:40,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 04:54:40,262 INFO L87 Difference]: Start difference. First operand 9784 states and 13434 transitions. Second operand 8 states. [2019-09-08 04:54:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:45,713 INFO L93 Difference]: Finished difference Result 37321 states and 51860 transitions. [2019-09-08 04:54:45,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 04:54:45,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 264 [2019-09-08 04:54:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:45,885 INFO L225 Difference]: With dead ends: 37321 [2019-09-08 04:54:45,886 INFO L226 Difference]: Without dead ends: 28816 [2019-09-08 04:54:45,927 INFO L628 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 [2019-09-08 04:54:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28816 states. [2019-09-08 04:54:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28816 to 28750. [2019-09-08 04:54:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28750 states. [2019-09-08 04:54:48,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28750 states to 28750 states and 39874 transitions. [2019-09-08 04:54:48,321 INFO L78 Accepts]: Start accepts. Automaton has 28750 states and 39874 transitions. Word has length 264 [2019-09-08 04:54:48,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:48,322 INFO L475 AbstractCegarLoop]: Abstraction has 28750 states and 39874 transitions. [2019-09-08 04:54:48,322 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 04:54:48,322 INFO L276 IsEmpty]: Start isEmpty. Operand 28750 states and 39874 transitions. [2019-09-08 04:54:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-09-08 04:54:48,350 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:48,351 INFO L399 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] [2019-09-08 04:54:48,352 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:48,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:48,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1397359716, now seen corresponding path program 1 times [2019-09-08 04:54:48,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:48,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:48,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:48,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:48,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-09-08 04:54:48,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:48,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-09-08 04:54:48,767 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 04:54:48,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 04:54:48,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-09-08 04:54:48,768 INFO L87 Difference]: Start difference. First operand 28750 states and 39874 transitions. Second operand 22 states. [2019-09-08 04:54:50,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:50,241 INFO L93 Difference]: Finished difference Result 44659 states and 61482 transitions. [2019-09-08 04:54:50,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 04:54:50,242 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 265 [2019-09-08 04:54:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:50,355 INFO L225 Difference]: With dead ends: 44659 [2019-09-08 04:54:50,355 INFO L226 Difference]: Without dead ends: 24282 [2019-09-08 04:54:50,407 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-09-08 04:54:50,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24282 states. [2019-09-08 04:54:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24282 to 23470. [2019-09-08 04:54:51,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23470 states. [2019-09-08 04:54:51,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23470 states to 23470 states and 32619 transitions. [2019-09-08 04:54:51,380 INFO L78 Accepts]: Start accepts. Automaton has 23470 states and 32619 transitions. Word has length 265 [2019-09-08 04:54:51,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:51,381 INFO L475 AbstractCegarLoop]: Abstraction has 23470 states and 32619 transitions. [2019-09-08 04:54:51,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 04:54:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 23470 states and 32619 transitions. [2019-09-08 04:54:51,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-09-08 04:54:51,410 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:51,411 INFO L399 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] [2019-09-08 04:54:51,411 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:51,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:51,412 INFO L82 PathProgramCache]: Analyzing trace with hash -329104805, now seen corresponding path program 1 times [2019-09-08 04:54:51,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:51,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:51,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:51,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:51,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2019-09-08 04:54:51,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 04:54:51,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 04:54:51,863 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 04:54:51,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 04:54:51,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 04:54:51,863 INFO L87 Difference]: Start difference. First operand 23470 states and 32619 transitions. Second operand 8 states. [2019-09-08 04:54:53,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:54:53,950 INFO L93 Difference]: Finished difference Result 68636 states and 95270 transitions. [2019-09-08 04:54:53,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 04:54:53,950 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 274 [2019-09-08 04:54:53,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:54:55,296 INFO L225 Difference]: With dead ends: 68636 [2019-09-08 04:54:55,296 INFO L226 Difference]: Without dead ends: 47407 [2019-09-08 04:54:55,355 INFO L628 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 [2019-09-08 04:54:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47407 states. [2019-09-08 04:54:56,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47407 to 46878. [2019-09-08 04:54:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46878 states. [2019-09-08 04:54:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46878 states to 46878 states and 65125 transitions. [2019-09-08 04:54:57,292 INFO L78 Accepts]: Start accepts. Automaton has 46878 states and 65125 transitions. Word has length 274 [2019-09-08 04:54:57,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:54:57,293 INFO L475 AbstractCegarLoop]: Abstraction has 46878 states and 65125 transitions. [2019-09-08 04:54:57,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 04:54:57,294 INFO L276 IsEmpty]: Start isEmpty. Operand 46878 states and 65125 transitions. [2019-09-08 04:54:57,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2019-09-08 04:54:57,377 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:54:57,377 INFO L399 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] [2019-09-08 04:54:57,378 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:54:57,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:54:57,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1529646268, now seen corresponding path program 1 times [2019-09-08 04:54:57,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:54:57,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:54:57,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:57,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:57,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:54:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:57,986 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-08 04:54:57,987 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:54:57,987 INFO L223 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 [2019-09-08 04:54:58,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:54:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:54:58,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 04:54:58,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:54:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 04:54:58,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:54:58,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [29] total 36 [2019-09-08 04:54:58,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 04:54:58,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 04:54:58,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1180, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 04:54:58,736 INFO L87 Difference]: Start difference. First operand 46878 states and 65125 transitions. Second operand 36 states. [2019-09-08 04:55:55,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:55:55,127 INFO L93 Difference]: Finished difference Result 448418 states and 671896 transitions. [2019-09-08 04:55:55,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-09-08 04:55:55,127 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 275 [2019-09-08 04:55:55,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:55:57,664 INFO L225 Difference]: With dead ends: 448418 [2019-09-08 04:55:57,664 INFO L226 Difference]: Without dead ends: 401512 [2019-09-08 04:55:58,000 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6761 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1920, Invalid=21032, Unknown=0, NotChecked=0, Total=22952 [2019-09-08 04:55:58,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401512 states. [2019-09-08 04:56:20,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401512 to 315904. [2019-09-08 04:56:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315904 states. [2019-09-08 04:56:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315904 states to 315904 states and 460773 transitions. [2019-09-08 04:56:26,829 INFO L78 Accepts]: Start accepts. Automaton has 315904 states and 460773 transitions. Word has length 275 [2019-09-08 04:56:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 04:56:26,830 INFO L475 AbstractCegarLoop]: Abstraction has 315904 states and 460773 transitions. [2019-09-08 04:56:26,830 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 04:56:26,830 INFO L276 IsEmpty]: Start isEmpty. Operand 315904 states and 460773 transitions. [2019-09-08 04:56:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2019-09-08 04:56:27,065 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 04:56:27,065 INFO L399 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] [2019-09-08 04:56:27,066 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 04:56:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 04:56:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1418737481, now seen corresponding path program 1 times [2019-09-08 04:56:27,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 04:56:27,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 04:56:27,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:56:27,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:56:27,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 04:56:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:56:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 11 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-08 04:56:27,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 04:56:27,554 INFO L223 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 [2019-09-08 04:56:27,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 04:56:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 04:56:27,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 2869 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 04:56:27,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 04:56:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-08 04:56:28,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 04:56:28,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [29] total 34 [2019-09-08 04:56:28,170 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-08 04:56:28,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-08 04:56:28,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1048, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 04:56:28,171 INFO L87 Difference]: Start difference. First operand 315904 states and 460773 transitions. Second operand 34 states. [2019-09-08 04:58:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 04:58:45,751 INFO L93 Difference]: Finished difference Result 1893851 states and 2894822 transitions. [2019-09-08 04:58:45,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-09-08 04:58:45,752 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 277 [2019-09-08 04:58:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 04:58:53,505 INFO L225 Difference]: With dead ends: 1893851 [2019-09-08 04:58:53,505 INFO L226 Difference]: Without dead ends: 1576784 [2019-09-08 04:58:54,562 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6985 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1908, Invalid=21044, Unknown=0, NotChecked=0, Total=22952 [2019-09-08 04:58:55,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576784 states.